3476 lines
136 KiB
Diff
3476 lines
136 KiB
Diff
From ab91bdfb7d8dbeebe4594b96cf81721f97012d24 Mon Sep 17 00:00:00 2001
|
|
From: John Crispin <blogic@openwrt.org>
|
|
Date: Thu, 8 Mar 2012 15:57:33 +0100
|
|
Subject: [PATCH 54/73] MIPS: lantiq: pcie: add pcie driver
|
|
|
|
---
|
|
arch/mips/Kconfig | 1 +
|
|
arch/mips/lantiq/Kconfig | 4 -
|
|
arch/mips/lantiq/xway/Kconfig | 21 +
|
|
arch/mips/pci/Makefile | 2 +
|
|
arch/mips/pci/fixup-lantiq-pcie.c | 81 +++
|
|
arch/mips/pci/pci.c | 25 +
|
|
arch/mips/pci/pcie-lantiq-msi.c | 399 +++++++++++
|
|
arch/mips/pci/pcie-lantiq-phy.c | 408 ++++++++++++
|
|
arch/mips/pci/pcie-lantiq.c | 1146 ++++++++++++++++++++++++++++++++
|
|
arch/mips/pci/pcie-lantiq.h | 1305 +++++++++++++++++++++++++++++++++++++
|
|
10 files changed, 3388 insertions(+), 4 deletions(-)
|
|
create mode 100644 arch/mips/pci/fixup-lantiq-pcie.c
|
|
create mode 100644 arch/mips/pci/pcie-lantiq-msi.c
|
|
create mode 100644 arch/mips/pci/pcie-lantiq-phy.c
|
|
create mode 100644 arch/mips/pci/pcie-lantiq.c
|
|
create mode 100644 arch/mips/pci/pcie-lantiq.h
|
|
|
|
--- a/arch/mips/Kconfig
|
|
+++ b/arch/mips/Kconfig
|
|
@@ -2353,6 +2353,7 @@ config PCI_DOMAINS
|
|
bool
|
|
|
|
source "drivers/pci/Kconfig"
|
|
+source "drivers/pci/pcie/Kconfig"
|
|
|
|
#
|
|
# ISA support is now enabled via select. Too many systems still have the one
|
|
--- a/arch/mips/lantiq/Kconfig
|
|
+++ b/arch/mips/lantiq/Kconfig
|
|
@@ -22,10 +22,6 @@ config SOC_FALCON
|
|
|
|
endchoice
|
|
|
|
-config PCI_LANTIQ
|
|
- bool "PCI Support"
|
|
- depends on SOC_XWAY && PCI
|
|
-
|
|
source "arch/mips/lantiq/xway/Kconfig"
|
|
source "arch/mips/lantiq/falcon/Kconfig"
|
|
|
|
--- a/arch/mips/lantiq/xway/Kconfig
|
|
+++ b/arch/mips/lantiq/xway/Kconfig
|
|
@@ -8,6 +8,27 @@ config LANTIQ_MACH_EASY50712
|
|
|
|
endmenu
|
|
|
|
+choice
|
|
+ prompt "PCI"
|
|
+ default PCI_LANTIQ_NONE
|
|
+
|
|
+config PCI_LANTIQ_NONE
|
|
+ bool "None"
|
|
+
|
|
+config PCI_LANTIQ
|
|
+ bool "PCI Support"
|
|
+ depends on PCI
|
|
+
|
|
+config PCIE_LANTIQ
|
|
+ bool "PCIE Support"
|
|
+ select ARCH_SUPPORTS_MSI
|
|
+
|
|
+endchoice
|
|
+
|
|
+config PCIE_LANTIQ_MSI
|
|
+ bool
|
|
+ depends on PCIE_LANTIQ && PCI_MSI
|
|
+ default y
|
|
endif
|
|
|
|
if SOC_AMAZON_SE
|
|
--- a/arch/mips/pci/Makefile
|
|
+++ b/arch/mips/pci/Makefile
|
|
@@ -42,6 +42,8 @@ obj-$(CONFIG_SIBYTE_BCM1x80) += pci-bcm1
|
|
obj-$(CONFIG_SNI_RM) += fixup-sni.o ops-sni.o
|
|
obj-$(CONFIG_LANTIQ) += fixup-lantiq.o
|
|
obj-$(CONFIG_PCI_LANTIQ) += pci-lantiq.o ops-lantiq.o
|
|
+obj-$(CONFIG_PCIE_LANTIQ) += pcie-lantiq-phy.o pcie-lantiq.o fixup-lantiq-pcie.o
|
|
+obj-$(CONFIG_PCIE_LANTIQ_MSI) += pcie-lantiq-msi.o
|
|
obj-$(CONFIG_TANBAC_TB0219) += fixup-tb0219.o
|
|
obj-$(CONFIG_TANBAC_TB0226) += fixup-tb0226.o
|
|
obj-$(CONFIG_TANBAC_TB0287) += fixup-tb0287.o
|
|
--- /dev/null
|
|
+++ b/arch/mips/pci/fixup-lantiq-pcie.c
|
|
@@ -0,0 +1,81 @@
|
|
+/******************************************************************************
|
|
+**
|
|
+** FILE NAME : ifxmips_fixup_pcie.c
|
|
+** PROJECT : IFX UEIP for VRX200
|
|
+** MODULES : PCIe
|
|
+**
|
|
+** DATE : 02 Mar 2009
|
|
+** AUTHOR : Lei Chuanhua
|
|
+** DESCRIPTION : PCIe Root Complex Driver
|
|
+** COPYRIGHT : Copyright (c) 2009
|
|
+** Infineon Technologies AG
|
|
+** Am Campeon 1-12, 85579 Neubiberg, Germany
|
|
+**
|
|
+** This program is free software; you can redistribute it and/or modify
|
|
+** it under the terms of the GNU General Public License as published by
|
|
+** the Free Software Foundation; either version 2 of the License, or
|
|
+** (at your option) any later version.
|
|
+** HISTORY
|
|
+** $Version $Date $Author $Comment
|
|
+** 0.0.1 17 Mar,2009 Lei Chuanhua Initial version
|
|
+*******************************************************************************/
|
|
+/*!
|
|
+ \file ifxmips_fixup_pcie.c
|
|
+ \ingroup IFX_PCIE
|
|
+ \brief PCIe Fixup functions source file
|
|
+*/
|
|
+#include <linux/pci.h>
|
|
+#include <linux/pci_regs.h>
|
|
+#include <linux/pci_ids.h>
|
|
+
|
|
+#include <lantiq_soc.h>
|
|
+
|
|
+#include "pcie-lantiq.h"
|
|
+
|
|
+#define PCI_VENDOR_ID_INFINEON 0x15D1
|
|
+#define PCI_DEVICE_ID_INFINEON_DANUBE 0x000F
|
|
+#define PCI_DEVICE_ID_INFINEON_PCIE 0x0011
|
|
+#define PCI_VENDOR_ID_LANTIQ 0x1BEF
|
|
+#define PCI_DEVICE_ID_LANTIQ_PCIE 0x0011
|
|
+
|
|
+
|
|
+
|
|
+static void __devinit
|
|
+ifx_pcie_fixup_resource(struct pci_dev *dev)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: enter\n", __func__, pci_name(dev));
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s: fixup host controller %s (%04x:%04x)\n",
|
|
+ __func__, pci_name(dev), dev->vendor, dev->device);
|
|
+
|
|
+ /* Setup COMMAND register */
|
|
+ reg = PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER /* |
|
|
+ PCI_COMMAND_INTX_DISABLE */| PCI_COMMAND_SERR;
|
|
+ pci_write_config_word(dev, PCI_COMMAND, reg);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: exit\n", __func__, pci_name(dev));
|
|
+}
|
|
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INFINEON, PCI_DEVICE_ID_INFINEON_PCIE, ifx_pcie_fixup_resource);
|
|
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LANTIQ, PCI_VENDOR_ID_LANTIQ, ifx_pcie_fixup_resource);
|
|
+
|
|
+static void __devinit
|
|
+ifx_pcie_rc_class_early_fixup(struct pci_dev *dev)
|
|
+{
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: enter\n", __func__, pci_name(dev));
|
|
+
|
|
+ if (dev->devfn == PCI_DEVFN(0, 0) &&
|
|
+ (dev->class >> 8) == PCI_CLASS_BRIDGE_HOST) {
|
|
+
|
|
+ dev->class = (PCI_CLASS_BRIDGE_PCI << 8) | (dev->class & 0xff);
|
|
+
|
|
+ printk(KERN_INFO "%s: fixed pcie host bridge to pci-pci bridge\n", __func__);
|
|
+ }
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s: exit\n", __func__, pci_name(dev));
|
|
+}
|
|
+
|
|
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_INFINEON, PCI_DEVICE_ID_INFINEON_PCIE,
|
|
+ ifx_pcie_rc_class_early_fixup);
|
|
+
|
|
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_LANTIQ, PCI_DEVICE_ID_LANTIQ_PCIE,
|
|
+ ifx_pcie_rc_class_early_fixup);
|
|
--- a/arch/mips/pci/pci.c
|
|
+++ b/arch/mips/pci/pci.c
|
|
@@ -167,6 +167,31 @@ static int __init pcibios_init(void)
|
|
|
|
subsys_initcall(pcibios_init);
|
|
|
|
+int pcibios_host_nr(void)
|
|
+{
|
|
+ int count;
|
|
+ struct pci_controller *hose;
|
|
+ for (count = 0, hose = hose_head; hose; hose = hose->next, count++) {
|
|
+ ;
|
|
+ }
|
|
+ return count;
|
|
+}
|
|
+EXPORT_SYMBOL(pcibios_host_nr);
|
|
+
|
|
+int pcibios_1st_host_bus_nr(void)
|
|
+{
|
|
+ int bus_nr = 0;
|
|
+ struct pci_controller *hose = hose_head;
|
|
+
|
|
+ if (hose != NULL) {
|
|
+ if (hose->bus != NULL) {
|
|
+ bus_nr = hose->bus->subordinate + 1;
|
|
+ }
|
|
+ }
|
|
+ return bus_nr;
|
|
+}
|
|
+EXPORT_SYMBOL(pcibios_1st_host_bus_nr);
|
|
+
|
|
static int pcibios_enable_resources(struct pci_dev *dev, int mask)
|
|
{
|
|
u16 cmd, old_cmd;
|
|
--- /dev/null
|
|
+++ b/arch/mips/pci/pcie-lantiq-msi.c
|
|
@@ -0,0 +1,399 @@
|
|
+/******************************************************************************
|
|
+**
|
|
+** FILE NAME : ifxmips_pcie_msi.c
|
|
+** PROJECT : IFX UEIP for VRX200
|
|
+** MODULES : PCI MSI sub module
|
|
+**
|
|
+** DATE : 02 Mar 2009
|
|
+** AUTHOR : Lei Chuanhua
|
|
+** DESCRIPTION : PCIe MSI Driver
|
|
+** COPYRIGHT : Copyright (c) 2009
|
|
+** Infineon Technologies AG
|
|
+** Am Campeon 1-12, 85579 Neubiberg, Germany
|
|
+**
|
|
+** This program is free software; you can redistribute it and/or modify
|
|
+** it under the terms of the GNU General Public License as published by
|
|
+** the Free Software Foundation; either version 2 of the License, or
|
|
+** (at your option) any later version.
|
|
+** HISTORY
|
|
+** $Date $Author $Comment
|
|
+** 02 Mar,2009 Lei Chuanhua Initial version
|
|
+*******************************************************************************/
|
|
+/*!
|
|
+ \defgroup IFX_PCIE_MSI MSI OS APIs
|
|
+ \ingroup IFX_PCIE
|
|
+ \brief PCIe bus driver OS interface functions
|
|
+*/
|
|
+
|
|
+/*!
|
|
+ \file ifxmips_pcie_msi.c
|
|
+ \ingroup IFX_PCIE
|
|
+ \brief PCIe MSI OS interface file
|
|
+*/
|
|
+
|
|
+#include <linux/init.h>
|
|
+#include <linux/sched.h>
|
|
+#include <linux/slab.h>
|
|
+#include <linux/interrupt.h>
|
|
+#include <linux/kernel_stat.h>
|
|
+#include <linux/pci.h>
|
|
+#include <linux/msi.h>
|
|
+#include <linux/module.h>
|
|
+#include <asm/bootinfo.h>
|
|
+#include <asm/irq.h>
|
|
+#include <asm/traps.h>
|
|
+
|
|
+#include "pcie-lantiq.h"
|
|
+
|
|
+#define IFX_MSI_IRQ_NUM 16
|
|
+#define SM(_v, _f) (((_v) << _f##_S) & (_f))
|
|
+
|
|
+#define IFX_MSI_PIC_REG_BASE (KSEG1 | 0x1F700000)
|
|
+#define IFX_PCIE_MSI_IR0 (INT_NUM_IM4_IRL0 + 27)
|
|
+#define IFX_PCIE_MSI_IR1 (INT_NUM_IM4_IRL0 + 28)
|
|
+#define IFX_PCIE_MSI_IR2 (INT_NUM_IM4_IRL0 + 29)
|
|
+#define IFX_PCIE_MSI_IR3 (INT_NUM_IM0_IRL0 + 30)
|
|
+
|
|
+#define IFX_MSI_PCI_INT_DISABLE 0x80000000
|
|
+#define IFX_MSI_PIC_INT_LINE 0x30000000
|
|
+#define IFX_MSI_PIC_MSG_ADDR 0x0FFF0000
|
|
+#define IFX_MSI_PIC_MSG_DATA 0x0000FFFF
|
|
+#define IFX_MSI_PIC_BIG_ENDIAN 1
|
|
+#define IFX_MSI_PIC_INT_LINE_S 28
|
|
+#define IFX_MSI_PIC_MSG_ADDR_S 16
|
|
+#define IFX_MSI_PIC_MSG_DATA_S 0x0
|
|
+
|
|
+enum {
|
|
+ IFX_PCIE_MSI_IDX0 = 0,
|
|
+ IFX_PCIE_MSI_IDX1,
|
|
+ IFX_PCIE_MSI_IDX2,
|
|
+ IFX_PCIE_MSI_IDX3,
|
|
+};
|
|
+
|
|
+typedef struct ifx_msi_irq_idx {
|
|
+ const int irq;
|
|
+ const int idx;
|
|
+}ifx_msi_irq_idx_t;
|
|
+
|
|
+struct ifx_msi_pic {
|
|
+ volatile u32 pic_table[IFX_MSI_IRQ_NUM];
|
|
+ volatile u32 pic_endian; /* 0x40 */
|
|
+};
|
|
+typedef struct ifx_msi_pic *ifx_msi_pic_t;
|
|
+
|
|
+typedef struct ifx_msi_irq {
|
|
+ const volatile ifx_msi_pic_t msi_pic_p;
|
|
+ const u32 msi_phy_base;
|
|
+ const ifx_msi_irq_idx_t msi_irq_idx[IFX_MSI_IRQ_NUM];
|
|
+ /*
|
|
+ * Each bit in msi_free_irq_bitmask represents a MSI interrupt that is
|
|
+ * in use.
|
|
+ */
|
|
+ u16 msi_free_irq_bitmask;
|
|
+
|
|
+ /*
|
|
+ * Each bit in msi_multiple_irq_bitmask tells that the device using
|
|
+ * this bit in msi_free_irq_bitmask is also using the next bit. This
|
|
+ * is used so we can disable all of the MSI interrupts when a device
|
|
+ * uses multiple.
|
|
+ */
|
|
+ u16 msi_multiple_irq_bitmask;
|
|
+}ifx_msi_irq_t;
|
|
+
|
|
+static ifx_msi_irq_t msi_irqs[IFX_PCIE_CORE_NR] = {
|
|
+ {
|
|
+ .msi_pic_p = (const volatile ifx_msi_pic_t)IFX_MSI_PIC_REG_BASE,
|
|
+ .msi_phy_base = PCIE_MSI_PHY_BASE,
|
|
+ .msi_irq_idx = {
|
|
+ {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ },
|
|
+ .msi_free_irq_bitmask = 0,
|
|
+ .msi_multiple_irq_bitmask= 0,
|
|
+ },
|
|
+#ifdef CONFIG_IFX_PCIE_2ND_CORE
|
|
+ {
|
|
+ .msi_pic_p = (const volatile ifx_msi_pic_t)IFX_MSI1_PIC_REG_BASE,
|
|
+ .msi_phy_base = PCIE1_MSI_PHY_BASE,
|
|
+ .msi_irq_idx = {
|
|
+ {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ {IFX_PCIE1_MSI_IR0, IFX_PCIE_MSI_IDX0}, {IFX_PCIE1_MSI_IR1, IFX_PCIE_MSI_IDX1},
|
|
+ {IFX_PCIE1_MSI_IR2, IFX_PCIE_MSI_IDX2}, {IFX_PCIE1_MSI_IR3, IFX_PCIE_MSI_IDX3},
|
|
+ },
|
|
+ .msi_free_irq_bitmask = 0,
|
|
+ .msi_multiple_irq_bitmask= 0,
|
|
+
|
|
+ },
|
|
+#endif /* CONFIG_IFX_PCIE_2ND_CORE */
|
|
+};
|
|
+
|
|
+/*
|
|
+ * This lock controls updates to msi_free_irq_bitmask,
|
|
+ * msi_multiple_irq_bitmask and pic register settting
|
|
+ */
|
|
+static DEFINE_SPINLOCK(ifx_pcie_msi_lock);
|
|
+
|
|
+void pcie_msi_pic_init(int pcie_port)
|
|
+{
|
|
+ spin_lock(&ifx_pcie_msi_lock);
|
|
+ msi_irqs[pcie_port].msi_pic_p->pic_endian = IFX_MSI_PIC_BIG_ENDIAN;
|
|
+ spin_unlock(&ifx_pcie_msi_lock);
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn int arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
|
|
+ * \brief Called when a driver request MSI interrupts instead of the
|
|
+ * legacy INT A-D. This routine will allocate multiple interrupts
|
|
+ * for MSI devices that support them. A device can override this by
|
|
+ * programming the MSI control bits [6:4] before calling
|
|
+ * pci_enable_msi().
|
|
+ *
|
|
+ * \param[in] pdev Device requesting MSI interrupts
|
|
+ * \param[in] desc MSI descriptor
|
|
+ *
|
|
+ * \return -EINVAL Invalid pcie root port or invalid msi bit
|
|
+ * \return 0 OK
|
|
+ * \ingroup IFX_PCIE_MSI
|
|
+ */
|
|
+int
|
|
+arch_setup_msi_irq(struct pci_dev *pdev, struct msi_desc *desc)
|
|
+{
|
|
+ int irq, pos;
|
|
+ u16 control;
|
|
+ int irq_idx;
|
|
+ int irq_step;
|
|
+ int configured_private_bits;
|
|
+ int request_private_bits;
|
|
+ struct msi_msg msg;
|
|
+ u16 search_mask;
|
|
+ struct ifx_pci_controller *ctrl = pdev->bus->sysdata;
|
|
+ int pcie_port = ctrl->port;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s %s enter\n", __func__, pci_name(pdev));
|
|
+
|
|
+ /* XXX, skip RC MSI itself */
|
|
+ if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT) {
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s RC itself doesn't use MSI interrupt\n", __func__);
|
|
+ return -EINVAL;
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * Read the MSI config to figure out how many IRQs this device
|
|
+ * wants. Most devices only want 1, which will give
|
|
+ * configured_private_bits and request_private_bits equal 0.
|
|
+ */
|
|
+ pci_read_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS, &control);
|
|
+
|
|
+ /*
|
|
+ * If the number of private bits has been configured then use
|
|
+ * that value instead of the requested number. This gives the
|
|
+ * driver the chance to override the number of interrupts
|
|
+ * before calling pci_enable_msi().
|
|
+ */
|
|
+ configured_private_bits = (control & PCI_MSI_FLAGS_QSIZE) >> 4;
|
|
+ if (configured_private_bits == 0) {
|
|
+ /* Nothing is configured, so use the hardware requested size */
|
|
+ request_private_bits = (control & PCI_MSI_FLAGS_QMASK) >> 1;
|
|
+ }
|
|
+ else {
|
|
+ /*
|
|
+ * Use the number of configured bits, assuming the
|
|
+ * driver wanted to override the hardware request
|
|
+ * value.
|
|
+ */
|
|
+ request_private_bits = configured_private_bits;
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * The PCI 2.3 spec mandates that there are at most 32
|
|
+ * interrupts. If this device asks for more, only give it one.
|
|
+ */
|
|
+ if (request_private_bits > 5) {
|
|
+ request_private_bits = 0;
|
|
+ }
|
|
+again:
|
|
+ /*
|
|
+ * The IRQs have to be aligned on a power of two based on the
|
|
+ * number being requested.
|
|
+ */
|
|
+ irq_step = (1 << request_private_bits);
|
|
+
|
|
+ /* Mask with one bit for each IRQ */
|
|
+ search_mask = (1 << irq_step) - 1;
|
|
+
|
|
+ /*
|
|
+ * We're going to search msi_free_irq_bitmask_lock for zero
|
|
+ * bits. This represents an MSI interrupt number that isn't in
|
|
+ * use.
|
|
+ */
|
|
+ spin_lock(&ifx_pcie_msi_lock);
|
|
+ for (pos = 0; pos < IFX_MSI_IRQ_NUM; pos += irq_step) {
|
|
+ if ((msi_irqs[pcie_port].msi_free_irq_bitmask & (search_mask << pos)) == 0) {
|
|
+ msi_irqs[pcie_port].msi_free_irq_bitmask |= search_mask << pos;
|
|
+ msi_irqs[pcie_port].msi_multiple_irq_bitmask |= (search_mask >> 1) << pos;
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ spin_unlock(&ifx_pcie_msi_lock);
|
|
+
|
|
+ /* Make sure the search for available interrupts didn't fail */
|
|
+ if (pos >= IFX_MSI_IRQ_NUM) {
|
|
+ if (request_private_bits) {
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s: Unable to find %d free "
|
|
+ "interrupts, trying just one", __func__, 1 << request_private_bits);
|
|
+ request_private_bits = 0;
|
|
+ goto again;
|
|
+ }
|
|
+ else {
|
|
+ printk(KERN_ERR "%s: Unable to find a free MSI interrupt\n", __func__);
|
|
+ return -EINVAL;
|
|
+ }
|
|
+ }
|
|
+ irq = msi_irqs[pcie_port].msi_irq_idx[pos].irq;
|
|
+ irq_idx = msi_irqs[pcie_port].msi_irq_idx[pos].idx;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "pos %d, irq %d irq_idx %d\n", pos, irq, irq_idx);
|
|
+
|
|
+ /*
|
|
+ * Initialize MSI. This has to match the memory-write endianess from the device
|
|
+ * Address bits [23:12]
|
|
+ */
|
|
+ spin_lock(&ifx_pcie_msi_lock);
|
|
+ msi_irqs[pcie_port].msi_pic_p->pic_table[pos] = SM(irq_idx, IFX_MSI_PIC_INT_LINE) |
|
|
+ SM((msi_irqs[pcie_port].msi_phy_base >> 12), IFX_MSI_PIC_MSG_ADDR) |
|
|
+ SM((1 << pos), IFX_MSI_PIC_MSG_DATA);
|
|
+
|
|
+ /* Enable this entry */
|
|
+ msi_irqs[pcie_port].msi_pic_p->pic_table[pos] &= ~IFX_MSI_PCI_INT_DISABLE;
|
|
+ spin_unlock(&ifx_pcie_msi_lock);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "pic_table[%d]: 0x%08x\n",
|
|
+ pos, msi_irqs[pcie_port].msi_pic_p->pic_table[pos]);
|
|
+
|
|
+ /* Update the number of IRQs the device has available to it */
|
|
+ control &= ~PCI_MSI_FLAGS_QSIZE;
|
|
+ control |= (request_private_bits << 4);
|
|
+ pci_write_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS, control);
|
|
+
|
|
+ irq_set_msi_desc(irq, desc);
|
|
+ msg.address_hi = 0x0;
|
|
+ msg.address_lo = msi_irqs[pcie_port].msi_phy_base;
|
|
+ msg.data = SM((1 << pos), IFX_MSI_PIC_MSG_DATA);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "msi_data: pos %d 0x%08x\n", pos, msg.data);
|
|
+
|
|
+ write_msi_msg(irq, &msg);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s exit\n", __func__);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int
|
|
+pcie_msi_irq_to_port(unsigned int irq, int *port)
|
|
+{
|
|
+ int ret = 0;
|
|
+
|
|
+ if (irq == IFX_PCIE_MSI_IR0 || irq == IFX_PCIE_MSI_IR1 ||
|
|
+ irq == IFX_PCIE_MSI_IR2 || irq == IFX_PCIE_MSI_IR3) {
|
|
+ *port = IFX_PCIE_PORT0;
|
|
+ }
|
|
+#ifdef CONFIG_IFX_PCIE_2ND_CORE
|
|
+ else if (irq == IFX_PCIE1_MSI_IR0 || irq == IFX_PCIE1_MSI_IR1 ||
|
|
+ irq == IFX_PCIE1_MSI_IR2 || irq == IFX_PCIE1_MSI_IR3) {
|
|
+ *port = IFX_PCIE_PORT1;
|
|
+ }
|
|
+#endif /* CONFIG_IFX_PCIE_2ND_CORE */
|
|
+ else {
|
|
+ printk(KERN_ERR "%s: Attempted to teardown illegal "
|
|
+ "MSI interrupt (%d)\n", __func__, irq);
|
|
+ ret = -EINVAL;
|
|
+ }
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn void arch_teardown_msi_irq(unsigned int irq)
|
|
+ * \brief Called when a device no longer needs its MSI interrupts. All
|
|
+ * MSI interrupts for the device are freed.
|
|
+ *
|
|
+ * \param irq The devices first irq number. There may be multple in sequence.
|
|
+ * \return none
|
|
+ * \ingroup IFX_PCIE_MSI
|
|
+ */
|
|
+void
|
|
+arch_teardown_msi_irq(unsigned int irq)
|
|
+{
|
|
+ int pos;
|
|
+ int number_irqs;
|
|
+ u16 bitmask;
|
|
+ int pcie_port;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s enter\n", __func__);
|
|
+
|
|
+ BUG_ON(irq > (INT_NUM_IM4_IRL0 + 31));
|
|
+
|
|
+ if (pcie_msi_irq_to_port(irq, &pcie_port) != 0) {
|
|
+ return;
|
|
+ }
|
|
+
|
|
+ /* Shift the mask to the correct bit location, not always correct
|
|
+ * Probally, the first match will be chosen.
|
|
+ */
|
|
+ for (pos = 0; pos < IFX_MSI_IRQ_NUM; pos++) {
|
|
+ if ((msi_irqs[pcie_port].msi_irq_idx[pos].irq == irq)
|
|
+ && (msi_irqs[pcie_port].msi_free_irq_bitmask & ( 1 << pos))) {
|
|
+ break;
|
|
+ }
|
|
+ }
|
|
+ if (pos >= IFX_MSI_IRQ_NUM) {
|
|
+ printk(KERN_ERR "%s: Unable to find a matched MSI interrupt\n", __func__);
|
|
+ return;
|
|
+ }
|
|
+ spin_lock(&ifx_pcie_msi_lock);
|
|
+ /* Disable this entry */
|
|
+ msi_irqs[pcie_port].msi_pic_p->pic_table[pos] |= IFX_MSI_PCI_INT_DISABLE;
|
|
+ msi_irqs[pcie_port].msi_pic_p->pic_table[pos] &= ~(IFX_MSI_PIC_INT_LINE | IFX_MSI_PIC_MSG_ADDR | IFX_MSI_PIC_MSG_DATA);
|
|
+ spin_unlock(&ifx_pcie_msi_lock);
|
|
+ /*
|
|
+ * Count the number of IRQs we need to free by looking at the
|
|
+ * msi_multiple_irq_bitmask. Each bit set means that the next
|
|
+ * IRQ is also owned by this device.
|
|
+ */
|
|
+ number_irqs = 0;
|
|
+ while (((pos + number_irqs) < IFX_MSI_IRQ_NUM) &&
|
|
+ (msi_irqs[pcie_port].msi_multiple_irq_bitmask & (1 << (pos + number_irqs)))) {
|
|
+ number_irqs++;
|
|
+ }
|
|
+ number_irqs++;
|
|
+
|
|
+ /* Mask with one bit for each IRQ */
|
|
+ bitmask = (1 << number_irqs) - 1;
|
|
+
|
|
+ bitmask <<= pos;
|
|
+ if ((msi_irqs[pcie_port].msi_free_irq_bitmask & bitmask) != bitmask) {
|
|
+ printk(KERN_ERR "%s: Attempted to teardown MSI "
|
|
+ "interrupt (%d) not in use\n", __func__, irq);
|
|
+ return;
|
|
+ }
|
|
+ /* Checks are done, update the in use bitmask */
|
|
+ spin_lock(&ifx_pcie_msi_lock);
|
|
+ msi_irqs[pcie_port].msi_free_irq_bitmask &= ~bitmask;
|
|
+ msi_irqs[pcie_port].msi_multiple_irq_bitmask &= ~(bitmask >> 1);
|
|
+ spin_unlock(&ifx_pcie_msi_lock);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_MSI, "%s exit\n", __func__);
|
|
+}
|
|
+
|
|
+MODULE_LICENSE("GPL");
|
|
+MODULE_AUTHOR("Chuanhua.Lei@infineon.com");
|
|
+MODULE_SUPPORTED_DEVICE("Infineon PCIe IP builtin MSI PIC module");
|
|
+MODULE_DESCRIPTION("Infineon PCIe IP builtin MSI PIC driver");
|
|
+
|
|
--- /dev/null
|
|
+++ b/arch/mips/pci/pcie-lantiq-phy.c
|
|
@@ -0,0 +1,408 @@
|
|
+/******************************************************************************
|
|
+**
|
|
+** FILE NAME : ifxmips_pcie_phy.c
|
|
+** PROJECT : IFX UEIP for VRX200
|
|
+** MODULES : PCIe PHY sub module
|
|
+**
|
|
+** DATE : 14 May 2009
|
|
+** AUTHOR : Lei Chuanhua
|
|
+** DESCRIPTION : PCIe Root Complex Driver
|
|
+** COPYRIGHT : Copyright (c) 2009
|
|
+** Infineon Technologies AG
|
|
+** Am Campeon 1-12, 85579 Neubiberg, Germany
|
|
+**
|
|
+** This program is free software; you can redistribute it and/or modify
|
|
+** it under the terms of the GNU General Public License as published by
|
|
+** the Free Software Foundation; either version 2 of the License, or
|
|
+** (at your option) any later version.
|
|
+** HISTORY
|
|
+** $Version $Date $Author $Comment
|
|
+** 0.0.1 14 May,2009 Lei Chuanhua Initial version
|
|
+*******************************************************************************/
|
|
+/*!
|
|
+ \file ifxmips_pcie_phy.c
|
|
+ \ingroup IFX_PCIE
|
|
+ \brief PCIe PHY PLL register programming source file
|
|
+*/
|
|
+#include <linux/types.h>
|
|
+#include <linux/kernel.h>
|
|
+#include <asm/paccess.h>
|
|
+#include <linux/delay.h>
|
|
+
|
|
+#include "pcie-lantiq.h"
|
|
+
|
|
+/* PCIe PDI only supports 16 bit operation */
|
|
+
|
|
+#define IFX_PCIE_PHY_REG_WRITE16(__addr, __data) \
|
|
+ ((*(volatile u16 *) (__addr)) = (__data))
|
|
+
|
|
+#define IFX_PCIE_PHY_REG_READ16(__addr) \
|
|
+ (*(volatile u16 *) (__addr))
|
|
+
|
|
+#define IFX_PCIE_PHY_REG16(__addr) \
|
|
+ (*(volatile u16 *) (__addr))
|
|
+
|
|
+#define IFX_PCIE_PHY_REG(__reg, __value, __mask) do { \
|
|
+ u16 read_data; \
|
|
+ u16 write_data; \
|
|
+ read_data = IFX_PCIE_PHY_REG_READ16((__reg)); \
|
|
+ write_data = (read_data & ((u16)~(__mask))) | (((u16)(__value)) & ((u16)(__mask)));\
|
|
+ IFX_PCIE_PHY_REG_WRITE16((__reg), write_data); \
|
|
+} while (0)
|
|
+
|
|
+#define IFX_PCIE_PLL_TIMEOUT 1000 /* Tunnable */
|
|
+
|
|
+static void
|
|
+pcie_phy_comm_setup(int pcie_port)
|
|
+{
|
|
+ /* PLL Setting */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL1(pcie_port), 0x120e, 0xFFFF);
|
|
+
|
|
+ /* increase the bias reference voltage */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x39D7, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x0900, 0xFFFF);
|
|
+
|
|
+ /* Endcnt */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_EI(pcie_port), 0x0004, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_A_CTRL(pcie_port), 0x6803, 0xFFFF);
|
|
+
|
|
+ /* force */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0008, 0x0008);
|
|
+
|
|
+ /* predrv_ser_en */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL2(pcie_port), 0x0706, 0xFFFF);
|
|
+
|
|
+ /* ctrl_lim */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL3(pcie_port), 0x1FFF, 0xFFFF);
|
|
+
|
|
+ /* ctrl */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL1(pcie_port), 0x0800, 0xFF00);
|
|
+
|
|
+ /* predrv_ser_en */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4702, 0x7F00);
|
|
+
|
|
+ /* RTERM*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL2(pcie_port), 0x2e00, 0xFFFF);
|
|
+
|
|
+ /* Improved 100MHz clock output */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL2(pcie_port), 0x3096, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4707, 0xFFFF);
|
|
+
|
|
+ /* Reduced CDR BW to avoid glitches */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CDR(pcie_port), 0x0235, 0xFFFF);
|
|
+}
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_MODE
|
|
+static void
|
|
+pcie_phy_36mhz_mode_setup(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port);
|
|
+
|
|
+ /* en_ext_mmd_div_ratio */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002);
|
|
+
|
|
+ /* ext_mmd_div_ratio*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070);
|
|
+
|
|
+ /* pll_ensdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200);
|
|
+
|
|
+ /* en_const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100);
|
|
+
|
|
+ /* mmd */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000);
|
|
+
|
|
+ /* lf_mode */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000);
|
|
+
|
|
+ /* const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF);
|
|
+
|
|
+ /* const sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF);
|
|
+
|
|
+ /* pllmod */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1b72, 0xFFFF);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port);
|
|
+}
|
|
+#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_MODE */
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE
|
|
+static void
|
|
+pcie_phy_36mhz_ssc_mode_setup(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port);
|
|
+
|
|
+ /* PLL Setting */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL1(pcie_port), 0x120e, 0xFFFF);
|
|
+
|
|
+ /* Increase the bias reference voltage */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x39D7, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x0900, 0xFFFF);
|
|
+
|
|
+ /* Endcnt */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_EI(pcie_port), 0x0004, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_A_CTRL(pcie_port), 0x6803, 0xFFFF);
|
|
+
|
|
+ /* Force */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0008, 0x0008);
|
|
+
|
|
+ /* Predrv_ser_en */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL2(pcie_port), 0x0706, 0xFFFF);
|
|
+
|
|
+ /* ctrl_lim */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL3(pcie_port), 0x1FFF, 0xFFFF);
|
|
+
|
|
+ /* ctrl */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_A_CTRL1(pcie_port), 0x0800, 0xFF00);
|
|
+
|
|
+ /* predrv_ser_en */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4702, 0x7F00);
|
|
+
|
|
+ /* RTERM*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL2(pcie_port), 0x2e00, 0xFFFF);
|
|
+
|
|
+ /* en_ext_mmd_div_ratio */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002);
|
|
+
|
|
+ /* ext_mmd_div_ratio*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070);
|
|
+
|
|
+ /* pll_ensdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0400, 0x0400);
|
|
+
|
|
+ /* en_const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200);
|
|
+
|
|
+ /* mmd */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000);
|
|
+
|
|
+ /* lf_mode */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000);
|
|
+
|
|
+ /* const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF);
|
|
+
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0000, 0x0100);
|
|
+ /* const sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF);
|
|
+
|
|
+ /* pllmod */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1c72, 0xFFFF);
|
|
+
|
|
+ /* improved 100MHz clock output */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL2(pcie_port), 0x3096, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_A_CTRL2(pcie_port), 0x4707, 0xFFFF);
|
|
+
|
|
+ /* reduced CDR BW to avoid glitches */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CDR(pcie_port), 0x0235, 0xFFFF);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port);
|
|
+}
|
|
+#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE */
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_PHY_25MHZ_MODE
|
|
+static void
|
|
+pcie_phy_25mhz_mode_setup(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port);
|
|
+ /* en_const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100);
|
|
+
|
|
+ /* pll_ensdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0000, 0x0200);
|
|
+
|
|
+ /* en_ext_mmd_div_ratio*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0002, 0x0002);
|
|
+
|
|
+ /* ext_mmd_div_ratio*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0040, 0x0070);
|
|
+
|
|
+ /* mmd */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x6000, 0xe000);
|
|
+
|
|
+ /* lf_mode */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x4000, 0x4000);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port);
|
|
+}
|
|
+#endif /* CONFIG_IFX_PCIE_PHY_25MHZ_MODE */
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_PHY_100MHZ_MODE
|
|
+static void
|
|
+pcie_phy_100mhz_mode_setup(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d enter\n", __func__, pcie_port);
|
|
+ /* en_ext_mmd_div_ratio */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0002);
|
|
+
|
|
+ /* ext_mmd_div_ratio*/
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL3(pcie_port), 0x0000, 0x0070);
|
|
+
|
|
+ /* pll_ensdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0200, 0x0200);
|
|
+
|
|
+ /* en_const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x0100, 0x0100);
|
|
+
|
|
+ /* mmd */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL3(pcie_port), 0x2000, 0xe000);
|
|
+
|
|
+ /* lf_mode */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_A_CTRL2(pcie_port), 0x0000, 0x4000);
|
|
+
|
|
+ /* const_sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL1(pcie_port), 0x38e4, 0xFFFF);
|
|
+
|
|
+ /* const sdm */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL2(pcie_port), 0x00ee, 0x00FF);
|
|
+
|
|
+ /* pllmod */
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL7(pcie_port), 0x0002, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL6(pcie_port), 0x3a04, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL5(pcie_port), 0xfae3, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_PLL_CTRL4(pcie_port), 0x1b72, 0xFFFF);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "%s pcie_port %d exit\n", __func__, pcie_port);
|
|
+}
|
|
+#endif /* CONFIG_IFX_PCIE_PHY_100MHZ_MODE */
|
|
+
|
|
+static int
|
|
+pcie_phy_wait_startup_ready(int pcie_port)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ for (i = 0; i < IFX_PCIE_PLL_TIMEOUT; i++) {
|
|
+ if ((IFX_PCIE_PHY_REG16(PCIE_PHY_PLL_STATUS(pcie_port)) & 0x0040) != 0) {
|
|
+ break;
|
|
+ }
|
|
+ udelay(10);
|
|
+ }
|
|
+ if (i >= IFX_PCIE_PLL_TIMEOUT) {
|
|
+ printk(KERN_ERR "%s PLL Link timeout\n", __func__);
|
|
+ return -1;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void
|
|
+pcie_phy_load_enable(int pcie_port, int slice)
|
|
+{
|
|
+ /* Set the load_en of tx/rx slice to '1' */
|
|
+ switch (slice) {
|
|
+ case 1:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0010, 0x0010);
|
|
+ break;
|
|
+ case 2:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL1(pcie_port), 0x0010, 0x0010);
|
|
+ break;
|
|
+ case 3:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CTRL1(pcie_port), 0x0002, 0x0002);
|
|
+ break;
|
|
+ }
|
|
+}
|
|
+
|
|
+static void
|
|
+pcie_phy_load_disable(int pcie_port, int slice)
|
|
+{
|
|
+ /* set the load_en of tx/rx slice to '0' */
|
|
+ switch (slice) {
|
|
+ case 1:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_CTRL1(pcie_port), 0x0000, 0x0010);
|
|
+ break;
|
|
+ case 2:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_CTRL1(pcie_port), 0x0000, 0x0010);
|
|
+ break;
|
|
+ case 3:
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_RX1_CTRL1(pcie_port), 0x0000, 0x0002);
|
|
+ break;
|
|
+ }
|
|
+}
|
|
+
|
|
+static void pcie_phy_load_war(int pcie_port)
|
|
+{
|
|
+ int slice;
|
|
+
|
|
+ for (slice = 1; slice < 4; slice++) {
|
|
+ pcie_phy_load_enable(pcie_port, slice);
|
|
+ udelay(1);
|
|
+ pcie_phy_load_disable(pcie_port, slice);
|
|
+ }
|
|
+}
|
|
+
|
|
+static void pcie_phy_tx2_modulation(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD1(pcie_port), 0x1FFE, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD2(pcie_port), 0xFFFE, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD3(pcie_port), 0x0601, 0xFFFF);
|
|
+ mdelay(1);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX2_MOD3(pcie_port), 0x0001, 0xFFFF);
|
|
+}
|
|
+
|
|
+static void pcie_phy_tx1_modulation(int pcie_port)
|
|
+{
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD1(pcie_port), 0x1FFE, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD2(pcie_port), 0xFFFE, 0xFFFF);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD3(pcie_port), 0x0601, 0xFFFF);
|
|
+ mdelay(1);
|
|
+ IFX_PCIE_PHY_REG(PCIE_PHY_TX1_MOD3(pcie_port), 0x0001, 0xFFFF);
|
|
+}
|
|
+
|
|
+static void pcie_phy_tx_modulation_war(int pcie_port)
|
|
+{
|
|
+ int i;
|
|
+#define PCIE_PHY_MODULATION_NUM 5
|
|
+ for (i = 0; i < PCIE_PHY_MODULATION_NUM; i++) {
|
|
+ pcie_phy_tx2_modulation(pcie_port);
|
|
+ pcie_phy_tx1_modulation(pcie_port);
|
|
+ }
|
|
+#undef PCIE_PHY_MODULATION_NUM
|
|
+}
|
|
+
|
|
+void pcie_phy_clock_mode_setup(int pcie_port)
|
|
+{
|
|
+ pcie_pdi_big_endian(pcie_port);
|
|
+
|
|
+ /* Enable PDI to access PCIe PHY register */
|
|
+ pcie_pdi_pmu_enable(pcie_port);
|
|
+
|
|
+ /* Configure PLL and PHY clock */
|
|
+ pcie_phy_comm_setup(pcie_port);
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_PHY_36MHZ_MODE
|
|
+ pcie_phy_36mhz_mode_setup(pcie_port);
|
|
+#elif defined(CONFIG_IFX_PCIE_PHY_36MHZ_SSC_MODE)
|
|
+ pcie_phy_36mhz_ssc_mode_setup(pcie_port);
|
|
+#elif defined(CONFIG_IFX_PCIE_PHY_25MHZ_MODE)
|
|
+ pcie_phy_25mhz_mode_setup(pcie_port);
|
|
+#elif defined (CONFIG_IFX_PCIE_PHY_100MHZ_MODE)
|
|
+ pcie_phy_100mhz_mode_setup(pcie_port);
|
|
+#else
|
|
+ #error "PCIE PHY Clock Mode must be chosen first!!!!"
|
|
+#endif /* CONFIG_IFX_PCIE_PHY_36MHZ_MODE */
|
|
+
|
|
+ /* Enable PCIe PHY and make PLL setting take effect */
|
|
+ pcie_phy_pmu_enable(pcie_port);
|
|
+
|
|
+ /* Check if we are in startup_ready status */
|
|
+ pcie_phy_wait_startup_ready(pcie_port);
|
|
+
|
|
+ pcie_phy_load_war(pcie_port);
|
|
+
|
|
+ /* Apply TX modulation workarounds */
|
|
+ pcie_phy_tx_modulation_war(pcie_port);
|
|
+
|
|
+#ifdef IFX_PCI_PHY_REG_DUMP
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_PHY, "Modified PHY register dump\n");
|
|
+ pcie_phy_reg_dump(pcie_port);
|
|
+#endif
|
|
+}
|
|
+
|
|
--- /dev/null
|
|
+++ b/arch/mips/pci/pcie-lantiq.c
|
|
@@ -0,0 +1,1146 @@
|
|
+#include <linux/types.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/pci.h>
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/delay.h>
|
|
+#include <linux/mm.h>
|
|
+#include <asm/paccess.h>
|
|
+#include <linux/pci.h>
|
|
+#include <linux/pci_regs.h>
|
|
+#include <linux/platform_device.h>
|
|
+
|
|
+#define CONFIG_IFX_PCIE_1ST_CORE
|
|
+
|
|
+#include "pcie-lantiq.h"
|
|
+
|
|
+#define IFX_PCIE_IR (INT_NUM_IM4_IRL0 + 25)
|
|
+#define IFX_PCIE_INTA (INT_NUM_IM4_IRL0 + 8)
|
|
+#define IFX_PCIE_INTB (INT_NUM_IM4_IRL0 + 9)
|
|
+#define IFX_PCIE_INTC (INT_NUM_IM4_IRL0 + 10)
|
|
+#define IFX_PCIE_INTD (INT_NUM_IM4_IRL0 + 11)
|
|
+#define MS(_v, _f) (((_v) & (_f)) >> _f##_S)
|
|
+#define SM(_v, _f) (((_v) << _f##_S) & (_f))
|
|
+#define IFX_REG_SET_BIT(_f, _r) \
|
|
+ IFX_REG_W32((IFX_REG_R32((_r)) &~ (_f)) | (_f), (_r))
|
|
+#define IFX_PCIE_LTSSM_ENABLE_TIMEOUT 10
|
|
+#define IFX_PCIE_PHY_LINK_UP_TIMEOUT 1000
|
|
+#define IFX_PCIE_PHY_LOOP_CNT 5
|
|
+
|
|
+static DEFINE_SPINLOCK(ifx_pcie_lock);
|
|
+
|
|
+int pcibios_1st_host_bus_nr(void);
|
|
+
|
|
+unsigned int g_pcie_debug_flag = PCIE_MSG_ANY & (~PCIE_MSG_CFG);
|
|
+
|
|
+static ifx_pcie_irq_t pcie_irqs[IFX_PCIE_CORE_NR] = {
|
|
+ {
|
|
+ .ir_irq = {
|
|
+ .irq = IFX_PCIE_IR,
|
|
+ .name = "ifx_pcie_rc0",
|
|
+ },
|
|
+
|
|
+ .legacy_irq = {
|
|
+ {
|
|
+ .irq_bit = PCIE_IRN_INTA,
|
|
+ .irq = IFX_PCIE_INTA,
|
|
+ },
|
|
+ {
|
|
+ .irq_bit = PCIE_IRN_INTB,
|
|
+ .irq = IFX_PCIE_INTB,
|
|
+ },
|
|
+ {
|
|
+ .irq_bit = PCIE_IRN_INTC,
|
|
+ .irq = IFX_PCIE_INTC,
|
|
+ },
|
|
+ {
|
|
+ .irq_bit = PCIE_IRN_INTD,
|
|
+ .irq = IFX_PCIE_INTD,
|
|
+ },
|
|
+ },
|
|
+ },
|
|
+};
|
|
+
|
|
+static inline int pcie_ltssm_enable(int pcie_port)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ IFX_REG_W32(PCIE_RC_CCR_LTSSM_ENABLE, PCIE_RC_CCR(pcie_port)); /* Enable LTSSM */
|
|
+
|
|
+ /* Wait for the link to come up */
|
|
+ for (i = 0; i < IFX_PCIE_LTSSM_ENABLE_TIMEOUT; i++) {
|
|
+ if (!(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_RETRAIN_PENDING)) {
|
|
+ break;
|
|
+ }
|
|
+ udelay(10);
|
|
+ }
|
|
+ if (i >= IFX_PCIE_LTSSM_ENABLE_TIMEOUT) {
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_INIT, "%s link timeout!!!!!\n", __func__);
|
|
+ return -1;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static inline void pcie_status_register_clear(int pcie_port)
|
|
+{
|
|
+ IFX_REG_W32(0, PCIE_RC_DR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_PCICMDSTS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_DCTLSTS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_LCTLSTS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_SLCTLSTS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_RSTS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_UES_R(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_UEMR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_UESR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_CESR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_CEMR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_RESR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_PVCCRSR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_VC0_RSR0(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_TPFCS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_TNPFCS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_TCFCS(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_QSR(pcie_port));
|
|
+ IFX_REG_W32(0, PCIE_IOBLSECS(pcie_port));
|
|
+}
|
|
+
|
|
+static inline int ifx_pcie_link_up(int pcie_port)
|
|
+{
|
|
+ return (IFX_REG_R32(PCIE_PHY_SR(pcie_port)) & PCIE_PHY_SR_PHY_LINK_UP) ? 1 : 0;
|
|
+}
|
|
+
|
|
+static inline void pcie_mem_io_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+ /*
|
|
+ * BAR[0:1] readonly register
|
|
+ * RC contains only minimal BARs for packets mapped to this device
|
|
+ * Mem/IO filters defines a range of memory occupied by memory mapped IO devices that
|
|
+ * reside on the downstream side fo the bridge.
|
|
+ */
|
|
+ reg = SM((PCIE_MEM_PHY_PORT_TO_END(pcie_port) >> 20), PCIE_MBML_MEM_LIMIT_ADDR)
|
|
+ | SM((PCIE_MEM_PHY_PORT_TO_BASE(pcie_port) >> 20), PCIE_MBML_MEM_BASE_ADDR);
|
|
+ IFX_REG_W32(reg, PCIE_MBML(pcie_port));
|
|
+
|
|
+ /* PCIe_PBML, same as MBML */
|
|
+ IFX_REG_W32(IFX_REG_R32(PCIE_MBML(pcie_port)), PCIE_PMBL(pcie_port));
|
|
+
|
|
+ /* IO Address Range */
|
|
+ reg = SM((PCIE_IO_PHY_PORT_TO_END(pcie_port) >> 12), PCIE_IOBLSECS_IO_LIMIT_ADDR)
|
|
+ | SM((PCIE_IO_PHY_PORT_TO_BASE(pcie_port) >> 12), PCIE_IOBLSECS_IO_BASE_ADDR);
|
|
+ reg |= PCIE_IOBLSECS_32BIT_IO_ADDR;
|
|
+ IFX_REG_W32(reg, PCIE_IOBLSECS(pcie_port));
|
|
+
|
|
+ reg = SM((PCIE_IO_PHY_PORT_TO_END(pcie_port) >> 16), PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT)
|
|
+ | SM((PCIE_IO_PHY_PORT_TO_BASE(pcie_port) >> 16), PCIE_IO_BANDL_UPPER_16BIT_IO_BASE);
|
|
+ IFX_REG_W32(reg, PCIE_IO_BANDL(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_msi_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* XXX, MSI stuff should only apply to EP */
|
|
+ /* MSI Capability: Only enable 32-bit addresses */
|
|
+ reg = IFX_REG_R32(PCIE_MCAPR(pcie_port));
|
|
+ reg &= ~PCIE_MCAPR_ADDR64_CAP;
|
|
+ reg |= PCIE_MCAPR_MSI_ENABLE;
|
|
+
|
|
+ /* Disable multiple message */
|
|
+ reg &= ~(PCIE_MCAPR_MULTI_MSG_CAP | PCIE_MCAPR_MULTI_MSG_ENABLE);
|
|
+ IFX_REG_W32(reg, PCIE_MCAPR(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_pm_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* Enable PME, Soft reset enabled */
|
|
+ reg = IFX_REG_R32(PCIE_PM_CSR(pcie_port));
|
|
+ reg |= PCIE_PM_CSR_PME_ENABLE | PCIE_PM_CSR_SW_RST;
|
|
+ IFX_REG_W32(reg, PCIE_PM_CSR(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_bus_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ reg = SM(0, PCIE_BNR_PRIMARY_BUS_NUM) | SM(1, PCIE_PNR_SECONDARY_BUS_NUM) | SM(0xFF, PCIE_PNR_SUB_BUS_NUM);
|
|
+ IFX_REG_W32(reg, PCIE_BNR(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_device_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* Device capability register, set up Maximum payload size */
|
|
+ reg = IFX_REG_R32(PCIE_DCAP(pcie_port));
|
|
+ reg |= PCIE_DCAP_ROLE_BASE_ERR_REPORT;
|
|
+ reg |= SM(PCIE_MAX_PAYLOAD_128, PCIE_DCAP_MAX_PAYLOAD_SIZE);
|
|
+
|
|
+ /* Only available for EP */
|
|
+ reg &= ~(PCIE_DCAP_EP_L0S_LATENCY | PCIE_DCAP_EP_L1_LATENCY);
|
|
+ IFX_REG_W32(reg, PCIE_DCAP(pcie_port));
|
|
+
|
|
+ /* Device control and status register */
|
|
+ /* Set Maximum Read Request size for the device as a Requestor */
|
|
+ reg = IFX_REG_R32(PCIE_DCTLSTS(pcie_port));
|
|
+
|
|
+ /*
|
|
+ * Request size can be larger than the MPS used, but the completions returned
|
|
+ * for the read will be bounded by the MPS size.
|
|
+ * In our system, Max request size depends on AHB burst size. It is 64 bytes.
|
|
+ * but we set it as 128 as minimum one.
|
|
+ */
|
|
+ reg |= SM(PCIE_MAX_PAYLOAD_128, PCIE_DCTLSTS_MAX_READ_SIZE)
|
|
+ | SM(PCIE_MAX_PAYLOAD_128, PCIE_DCTLSTS_MAX_PAYLOAD_SIZE);
|
|
+
|
|
+ /* Enable relaxed ordering, no snoop, and all kinds of errors */
|
|
+ reg |= PCIE_DCTLSTS_RELAXED_ORDERING_EN | PCIE_DCTLSTS_ERR_EN | PCIE_DCTLSTS_NO_SNOOP_EN;
|
|
+
|
|
+ IFX_REG_W32(reg, PCIE_DCTLSTS(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_link_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /*
|
|
+ * XXX, Link capability register, bit 18 for EP CLKREQ# dynamic clock management for L1, L2/3 CPM
|
|
+ * L0s is reported during link training via TS1 order set by N_FTS
|
|
+ */
|
|
+ reg = IFX_REG_R32(PCIE_LCAP(pcie_port));
|
|
+ reg &= ~PCIE_LCAP_L0S_EIXT_LATENCY;
|
|
+ reg |= SM(3, PCIE_LCAP_L0S_EIXT_LATENCY);
|
|
+ IFX_REG_W32(reg, PCIE_LCAP(pcie_port));
|
|
+
|
|
+ /* Link control and status register */
|
|
+ reg = IFX_REG_R32(PCIE_LCTLSTS(pcie_port));
|
|
+
|
|
+ /* Link Enable, ASPM enabled */
|
|
+ reg &= ~PCIE_LCTLSTS_LINK_DISABLE;
|
|
+
|
|
+#ifdef CONFIG_PCIEASPM
|
|
+ /*
|
|
+ * We use the same physical reference clock that the platform provides on the connector
|
|
+ * It paved the way for ASPM to calculate the new exit Latency
|
|
+ */
|
|
+ reg |= PCIE_LCTLSTS_SLOT_CLK_CFG;
|
|
+ reg |= PCIE_LCTLSTS_COM_CLK_CFG;
|
|
+ /*
|
|
+ * We should disable ASPM by default except that we have dedicated power management support
|
|
+ * Enable ASPM will cause the system hangup/instability, performance degration
|
|
+ */
|
|
+ reg |= PCIE_LCTLSTS_ASPM_ENABLE;
|
|
+#else
|
|
+ reg &= ~PCIE_LCTLSTS_ASPM_ENABLE;
|
|
+#endif /* CONFIG_PCIEASPM */
|
|
+
|
|
+ /*
|
|
+ * The maximum size of any completion with data packet is bounded by the MPS setting
|
|
+ * in device control register
|
|
+ */
|
|
+ /* RCB may cause multiple split transactions, two options available, we use 64 byte RCB */
|
|
+ reg &= ~ PCIE_LCTLSTS_RCB128;
|
|
+ IFX_REG_W32(reg, PCIE_LCTLSTS(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_error_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /*
|
|
+ * Forward ERR_COR, ERR_NONFATAL, ERR_FATAL to the backbone
|
|
+ * Poisoned write TLPs and completions indicating poisoned TLPs will set the PCIe_PCICMDSTS.MDPE
|
|
+ */
|
|
+ reg = IFX_REG_R32(PCIE_INTRBCTRL(pcie_port));
|
|
+ reg |= PCIE_INTRBCTRL_SERR_ENABLE | PCIE_INTRBCTRL_PARITY_ERR_RESP_ENABLE;
|
|
+
|
|
+ IFX_REG_W32(reg, PCIE_INTRBCTRL(pcie_port));
|
|
+
|
|
+ /* Uncorrectable Error Mask Register, Unmask <enable> all bits in PCIE_UESR */
|
|
+ reg = IFX_REG_R32(PCIE_UEMR(pcie_port));
|
|
+ reg &= ~PCIE_ALL_UNCORRECTABLE_ERR;
|
|
+ IFX_REG_W32(reg, PCIE_UEMR(pcie_port));
|
|
+
|
|
+ /* Uncorrectable Error Severity Register, ALL errors are FATAL */
|
|
+ IFX_REG_W32(PCIE_ALL_UNCORRECTABLE_ERR, PCIE_UESR(pcie_port));
|
|
+
|
|
+ /* Correctable Error Mask Register, unmask <enable> all bits */
|
|
+ reg = IFX_REG_R32(PCIE_CEMR(pcie_port));
|
|
+ reg &= ~PCIE_CORRECTABLE_ERR;
|
|
+ IFX_REG_W32(reg, PCIE_CEMR(pcie_port));
|
|
+
|
|
+ /* Advanced Error Capabilities and Control Registr */
|
|
+ reg = IFX_REG_R32(PCIE_AECCR(pcie_port));
|
|
+ reg |= PCIE_AECCR_ECRC_CHECK_EN | PCIE_AECCR_ECRC_GEN_EN;
|
|
+ IFX_REG_W32(reg, PCIE_AECCR(pcie_port));
|
|
+
|
|
+ /* Root Error Command Register, Report all types of errors */
|
|
+ reg = IFX_REG_R32(PCIE_RECR(pcie_port));
|
|
+ reg |= PCIE_RECR_ERR_REPORT_EN;
|
|
+ IFX_REG_W32(reg, PCIE_RECR(pcie_port));
|
|
+
|
|
+ /* Clear the Root status register */
|
|
+ reg = IFX_REG_R32(PCIE_RESR(pcie_port));
|
|
+ IFX_REG_W32(reg, PCIE_RESR(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_root_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* Root control and capabilities register */
|
|
+ reg = IFX_REG_R32(PCIE_RCTLCAP(pcie_port));
|
|
+ reg |= PCIE_RCTLCAP_SERR_ENABLE | PCIE_RCTLCAP_PME_INT_EN;
|
|
+ IFX_REG_W32(reg, PCIE_RCTLCAP(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_vc_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* Port VC Capability Register 2 */
|
|
+ reg = IFX_REG_R32(PCIE_PVC2(pcie_port));
|
|
+ reg &= ~PCIE_PVC2_VC_ARB_WRR;
|
|
+ reg |= PCIE_PVC2_VC_ARB_16P_FIXED_WRR;
|
|
+ IFX_REG_W32(reg, PCIE_PVC2(pcie_port));
|
|
+
|
|
+ /* VC0 Resource Capability Register */
|
|
+ reg = IFX_REG_R32(PCIE_VC0_RC(pcie_port));
|
|
+ reg &= ~PCIE_VC0_RC_REJECT_SNOOP;
|
|
+ IFX_REG_W32(reg, PCIE_VC0_RC(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_port_logic_setup(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+
|
|
+ /* FTS number, default 12, increase to 63, may increase time from/to L0s to L0 */
|
|
+ reg = IFX_REG_R32(PCIE_AFR(pcie_port));
|
|
+ reg &= ~(PCIE_AFR_FTS_NUM | PCIE_AFR_COM_FTS_NUM);
|
|
+ reg |= SM(PCIE_AFR_FTS_NUM_DEFAULT, PCIE_AFR_FTS_NUM)
|
|
+ | SM(PCIE_AFR_FTS_NUM_DEFAULT, PCIE_AFR_COM_FTS_NUM);
|
|
+ /* L0s and L1 entry latency */
|
|
+ reg &= ~(PCIE_AFR_L0S_ENTRY_LATENCY | PCIE_AFR_L1_ENTRY_LATENCY);
|
|
+ reg |= SM(PCIE_AFR_L0S_ENTRY_LATENCY_DEFAULT, PCIE_AFR_L0S_ENTRY_LATENCY)
|
|
+ | SM(PCIE_AFR_L1_ENTRY_LATENCY_DEFAULT, PCIE_AFR_L1_ENTRY_LATENCY);
|
|
+ IFX_REG_W32(reg, PCIE_AFR(pcie_port));
|
|
+
|
|
+ /* Port Link Control Register */
|
|
+ reg = IFX_REG_R32(PCIE_PLCR(pcie_port));
|
|
+ reg |= PCIE_PLCR_DLL_LINK_EN; /* Enable the DLL link */
|
|
+ IFX_REG_W32(reg, PCIE_PLCR(pcie_port));
|
|
+
|
|
+ /* Lane Skew Register */
|
|
+ reg = IFX_REG_R32(PCIE_LSR(pcie_port));
|
|
+ /* Enable ACK/NACK and FC */
|
|
+ reg &= ~(PCIE_LSR_ACKNAK_DISABLE | PCIE_LSR_FC_DISABLE);
|
|
+ IFX_REG_W32(reg, PCIE_LSR(pcie_port));
|
|
+
|
|
+ /* Symbol Timer Register and Filter Mask Register 1 */
|
|
+ reg = IFX_REG_R32(PCIE_STRFMR(pcie_port));
|
|
+
|
|
+ /* Default SKP interval is very accurate already, 5us */
|
|
+ /* Enable IO/CFG transaction */
|
|
+ reg |= PCIE_STRFMR_RX_CFG_TRANS_ENABLE | PCIE_STRFMR_RX_IO_TRANS_ENABLE;
|
|
+ /* Disable FC WDT */
|
|
+ reg &= ~PCIE_STRFMR_FC_WDT_DISABLE;
|
|
+ IFX_REG_W32(reg, PCIE_STRFMR(pcie_port));
|
|
+
|
|
+ /* Filter Masker Register 2 */
|
|
+ reg = IFX_REG_R32(PCIE_FMR2(pcie_port));
|
|
+ reg |= PCIE_FMR2_VENDOR_MSG1_PASSED_TO_TRGT1 | PCIE_FMR2_VENDOR_MSG0_PASSED_TO_TRGT1;
|
|
+ IFX_REG_W32(reg, PCIE_FMR2(pcie_port));
|
|
+
|
|
+ /* VC0 Completion Receive Queue Control Register */
|
|
+ reg = IFX_REG_R32(PCIE_VC0_CRQCR(pcie_port));
|
|
+ reg &= ~PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE;
|
|
+ reg |= SM(PCIE_VC0_TLP_QUEUE_MODE_BYPASS, PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE);
|
|
+ IFX_REG_W32(reg, PCIE_VC0_CRQCR(pcie_port));
|
|
+}
|
|
+
|
|
+static inline void pcie_rc_cfg_reg_setup(int pcie_port)
|
|
+{
|
|
+ /* diable ltssm */
|
|
+ IFX_REG_W32(0, PCIE_RC_CCR(pcie_port));
|
|
+
|
|
+ pcie_mem_io_setup(pcie_port);
|
|
+ pcie_msi_setup(pcie_port);
|
|
+ pcie_pm_setup(pcie_port);
|
|
+ pcie_bus_setup(pcie_port);
|
|
+ pcie_device_setup(pcie_port);
|
|
+ pcie_link_setup(pcie_port);
|
|
+ pcie_error_setup(pcie_port);
|
|
+ pcie_root_setup(pcie_port);
|
|
+ pcie_vc_setup(pcie_port);
|
|
+ pcie_port_logic_setup(pcie_port);
|
|
+}
|
|
+
|
|
+static int ifx_pcie_wait_phy_link_up(int pcie_port)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ /* Wait for PHY link is up */
|
|
+ for (i = 0; i < IFX_PCIE_PHY_LINK_UP_TIMEOUT; i++) {
|
|
+ if (ifx_pcie_link_up(pcie_port)) {
|
|
+ break;
|
|
+ }
|
|
+ udelay(100);
|
|
+ }
|
|
+ if (i >= IFX_PCIE_PHY_LINK_UP_TIMEOUT) {
|
|
+ printk(KERN_ERR "%s timeout\n", __func__);
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ /* Check data link up or not */
|
|
+ if (!(IFX_REG_R32(PCIE_RC_DR(pcie_port)) & PCIE_RC_DR_DLL_UP)) {
|
|
+ printk(KERN_ERR "%s DLL link is still down\n", __func__);
|
|
+ return -1;
|
|
+ }
|
|
+
|
|
+ /* Check Data link active or not */
|
|
+ if (!(IFX_REG_R32(PCIE_LCTLSTS(pcie_port)) & PCIE_LCTLSTS_DLL_ACTIVE)) {
|
|
+ printk(KERN_ERR "%s DLL is not active\n", __func__);
|
|
+ return -1;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static inline int pcie_app_loigc_setup(int pcie_port)
|
|
+{
|
|
+ IFX_REG_W32(PCIE_AHB_CTRL_BUS_ERROR_SUPPRESS, PCIE_AHB_CTRL(pcie_port));
|
|
+
|
|
+ /* Pull PCIe EP out of reset */
|
|
+ pcie_device_rst_deassert(pcie_port);
|
|
+
|
|
+ /* Start LTSSM training between RC and EP */
|
|
+ pcie_ltssm_enable(pcie_port);
|
|
+
|
|
+ /* Check PHY status after enabling LTSSM */
|
|
+ if (ifx_pcie_wait_phy_link_up(pcie_port) != 0) {
|
|
+ return -1;
|
|
+ }
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+/*
|
|
+ * Must be done after ltssm due to based on negotiated link
|
|
+ * width and payload size
|
|
+ * Update the Replay Time Limit. Empirically, some PCIe
|
|
+ * devices take a little longer to respond than expected under
|
|
+ * load. As a workaround for this we configure the Replay Time
|
|
+ * Limit to the value expected for a 512 byte MPS instead of
|
|
+ * our actual 128 byte MPS. The numbers below are directly
|
|
+ * from the PCIe spec table 3-4/5.
|
|
+ */
|
|
+static inline void pcie_replay_time_update(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+ int nlw;
|
|
+ int rtl;
|
|
+
|
|
+ reg = IFX_REG_R32(PCIE_LCTLSTS(pcie_port));
|
|
+
|
|
+ nlw = MS(reg, PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH);
|
|
+ switch (nlw) {
|
|
+ case PCIE_MAX_LENGTH_WIDTH_X1:
|
|
+ rtl = 1677;
|
|
+ break;
|
|
+ case PCIE_MAX_LENGTH_WIDTH_X2:
|
|
+ rtl = 867;
|
|
+ break;
|
|
+ case PCIE_MAX_LENGTH_WIDTH_X4:
|
|
+ rtl = 462;
|
|
+ break;
|
|
+ case PCIE_MAX_LENGTH_WIDTH_X8:
|
|
+ rtl = 258;
|
|
+ break;
|
|
+ default:
|
|
+ rtl = 1677;
|
|
+ break;
|
|
+ }
|
|
+ reg = IFX_REG_R32(PCIE_ALTRT(pcie_port));
|
|
+ reg &= ~PCIE_ALTRT_REPLAY_TIME_LIMIT;
|
|
+ reg |= SM(rtl, PCIE_ALTRT_REPLAY_TIME_LIMIT);
|
|
+ IFX_REG_W32(reg, PCIE_ALTRT(pcie_port));
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_REG, "%s PCIE_ALTRT 0x%08x\n",
|
|
+ __func__, IFX_REG_R32(PCIE_ALTRT(pcie_port)));
|
|
+}
|
|
+
|
|
+/*
|
|
+ * Table 359 Enhanced Configuration Address Mapping1)
|
|
+ * 1) This table is defined in Table 7-1, page 341, PCI Express Base Specification v1.1
|
|
+ * Memory Address PCI Express Configuration Space
|
|
+ * A[(20+n-1):20] Bus Number 1 < n < 8
|
|
+ * A[19:15] Device Number
|
|
+ * A[14:12] Function Number
|
|
+ * A[11:8] Extended Register Number
|
|
+ * A[7:2] Register Number
|
|
+ * A[1:0] Along with size of the access, used to generate Byte Enables
|
|
+ * For VR9, only the address bits [22:0] are mapped to the configuration space:
|
|
+ * . Address bits [22:20] select the target bus (1-of-8)1)
|
|
+ * . Address bits [19:15] select the target device (1-of-32) on the bus
|
|
+ * . Address bits [14:12] select the target function (1-of-8) within the device.
|
|
+ * . Address bits [11:2] selects the target dword (1-of-1024) within the selected function.s configuration space
|
|
+ * . Address bits [1:0] define the start byte location within the selected dword.
|
|
+ */
|
|
+static inline unsigned int pcie_bus_addr(u8 bus_num, u16 devfn, int where)
|
|
+{
|
|
+ unsigned int addr;
|
|
+ u8 bus;
|
|
+
|
|
+ if (!bus_num) {
|
|
+ /* type 0 */
|
|
+ addr = ((PCI_SLOT(devfn) & 0x1F) << 15) | ((PCI_FUNC(devfn) & 0x7) << 12) | ((where & 0xFFF)& ~3);
|
|
+ } else {
|
|
+ bus = bus_num;
|
|
+ /* type 1, only support 8 buses */
|
|
+ addr = ((bus & 0x7) << 20) | ((PCI_SLOT(devfn) & 0x1F) << 15) |
|
|
+ ((PCI_FUNC(devfn) & 0x7) << 12) | ((where & 0xFFF) & ~3);
|
|
+ }
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_CFG, "%s: bus addr : %02x:%02x.%01x/%02x, addr=%08x\n",
|
|
+ __func__, bus_num, PCI_SLOT(devfn), PCI_FUNC(devfn), where, addr);
|
|
+ return addr;
|
|
+}
|
|
+
|
|
+static int pcie_valid_config(int pcie_port, int bus, int dev)
|
|
+{
|
|
+ /* RC itself */
|
|
+ if ((bus == 0) && (dev == 0))
|
|
+ return 1;
|
|
+
|
|
+ /* No physical link */
|
|
+ if (!ifx_pcie_link_up(pcie_port))
|
|
+ return 0;
|
|
+
|
|
+ /* Bus zero only has RC itself
|
|
+ * XXX, check if EP will be integrated
|
|
+ */
|
|
+ if ((bus == 0) && (dev != 0))
|
|
+ return 0;
|
|
+
|
|
+ /* Maximum 8 buses supported for VRX */
|
|
+ if (bus > 9)
|
|
+ return 0;
|
|
+
|
|
+ /*
|
|
+ * PCIe is PtP link, one bus only supports only one device
|
|
+ * except bus zero and PCIe switch which is virtual bus device
|
|
+ * The following two conditions really depends on the system design
|
|
+ * and attached the device.
|
|
+ * XXX, how about more new switch
|
|
+ */
|
|
+ if ((bus == 1) && (dev != 0))
|
|
+ return 0;
|
|
+
|
|
+ if ((bus >= 3) && (dev != 0))
|
|
+ return 0;
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static inline unsigned int ifx_pcie_cfg_rd(int pcie_port, unsigned int reg)
|
|
+{
|
|
+ return IFX_REG_R32((volatile unsigned int *)(PCIE_CFG_PORT_TO_BASE(pcie_port) + reg));
|
|
+}
|
|
+
|
|
+static inline void ifx_pcie_cfg_wr(int pcie_port, unsigned int reg, unsigned int val)
|
|
+{
|
|
+ IFX_REG_W32( val, (volatile unsigned int *)(PCIE_CFG_PORT_TO_BASE(pcie_port) + reg));
|
|
+}
|
|
+
|
|
+static inline unsigned int ifx_pcie_rc_cfg_rd(int pcie_port, unsigned int reg)
|
|
+{
|
|
+ return IFX_REG_R32((volatile unsigned int *)(PCIE_RC_PORT_TO_BASE(pcie_port) + reg));
|
|
+}
|
|
+
|
|
+static inline void ifx_pcie_rc_cfg_wr(int pcie_port, unsigned int reg, unsigned int val)
|
|
+{
|
|
+ IFX_REG_W32(val, (volatile unsigned int *)(PCIE_RC_PORT_TO_BASE(pcie_port) + reg));
|
|
+}
|
|
+
|
|
+unsigned int ifx_pcie_bus_enum_read_hack(int where, unsigned int value)
|
|
+{
|
|
+ unsigned int tvalue = value;
|
|
+
|
|
+ if (where == PCI_PRIMARY_BUS) {
|
|
+ u8 primary, secondary, subordinate;
|
|
+
|
|
+ primary = tvalue & 0xFF;
|
|
+ secondary = (tvalue >> 8) & 0xFF;
|
|
+ subordinate = (tvalue >> 16) & 0xFF;
|
|
+ primary += pcibios_1st_host_bus_nr();
|
|
+ secondary += pcibios_1st_host_bus_nr();
|
|
+ subordinate += pcibios_1st_host_bus_nr();
|
|
+ tvalue = (tvalue & 0xFF000000) | (unsigned int)primary | (unsigned int)(secondary << 8) | (unsigned int)(subordinate << 16);
|
|
+ }
|
|
+ return tvalue;
|
|
+}
|
|
+
|
|
+unsigned int ifx_pcie_bus_enum_write_hack(int where, unsigned int value)
|
|
+{
|
|
+ unsigned int tvalue = value;
|
|
+
|
|
+ if (where == PCI_PRIMARY_BUS) {
|
|
+ u8 primary, secondary, subordinate;
|
|
+
|
|
+ primary = tvalue & 0xFF;
|
|
+ secondary = (tvalue >> 8) & 0xFF;
|
|
+ subordinate = (tvalue >> 16) & 0xFF;
|
|
+ if (primary > 0 && primary != 0xFF)
|
|
+ primary -= pcibios_1st_host_bus_nr();
|
|
+ if (secondary > 0 && secondary != 0xFF)
|
|
+ secondary -= pcibios_1st_host_bus_nr();
|
|
+ if (subordinate > 0 && subordinate != 0xFF)
|
|
+ subordinate -= pcibios_1st_host_bus_nr();
|
|
+ tvalue = (tvalue & 0xFF000000) | (unsigned int)primary | (unsigned int)(secondary << 8) | (unsigned int)(subordinate << 16);
|
|
+ } else if (where == PCI_SUBORDINATE_BUS) {
|
|
+ u8 subordinate = tvalue & 0xFF;
|
|
+ subordinate = subordinate > 0 ? subordinate - pcibios_1st_host_bus_nr() : 0;
|
|
+ tvalue = subordinate;
|
|
+ }
|
|
+ return tvalue;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn static int ifx_pcie_read_config(struct pci_bus *bus, unsigned int devfn,
|
|
+ * int where, int size, unsigned int *value)
|
|
+ * \brief Read a value from configuration space
|
|
+ *
|
|
+ * \param[in] bus Pointer to pci bus
|
|
+ * \param[in] devfn PCI device function number
|
|
+ * \param[in] where PCI register number
|
|
+ * \param[in] size Register read size
|
|
+ * \param[out] value Pointer to return value
|
|
+ * \return PCIBIOS_BAD_REGISTER_NUMBER Invalid register number
|
|
+ * \return PCIBIOS_FUNC_NOT_SUPPORTED PCI function not supported
|
|
+ * \return PCIBIOS_DEVICE_NOT_FOUND PCI device not found
|
|
+ * \return PCIBIOS_SUCCESSFUL OK
|
|
+ * \ingroup IFX_PCIE_OS
|
|
+ */
|
|
+static int ifx_pcie_read_config(struct pci_bus *bus, unsigned int devfn, int where, int size, unsigned int *value)
|
|
+{
|
|
+ unsigned int data = 0;
|
|
+ int bus_number = bus->number;
|
|
+ static const unsigned int mask[8] = {0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0};
|
|
+ int ret = PCIBIOS_SUCCESSFUL;
|
|
+ struct ifx_pci_controller *ctrl = bus->sysdata;
|
|
+ int pcie_port = ctrl->port;
|
|
+
|
|
+ if (unlikely(size != 1 && size != 2 && size != 4)){
|
|
+ ret = PCIBIOS_BAD_REGISTER_NUMBER;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ /* Make sure the address is aligned to natural boundary */
|
|
+ if (unlikely(((size - 1) & where))) {
|
|
+ ret = PCIBIOS_BAD_REGISTER_NUMBER;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ /*
|
|
+ * If we are second controller, we have to cheat OS so that it assume
|
|
+ * its bus number starts from 0 in host controller
|
|
+ */
|
|
+ bus_number = ifx_pcie_bus_nr_deduct(bus_number, pcie_port);
|
|
+
|
|
+ /*
|
|
+ * We need to force the bus number to be zero on the root
|
|
+ * bus. Linux numbers the 2nd root bus to start after all
|
|
+ * busses on root 0.
|
|
+ */
|
|
+ if (bus->parent == NULL)
|
|
+ bus_number = 0;
|
|
+
|
|
+ /*
|
|
+ * PCIe only has a single device connected to it. It is
|
|
+ * always device ID 0. Don't bother doing reads for other
|
|
+ * device IDs on the first segment.
|
|
+ */
|
|
+ if ((bus_number == 0) && (PCI_SLOT(devfn) != 0)) {
|
|
+ ret = PCIBIOS_FUNC_NOT_SUPPORTED;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ if (pcie_valid_config(pcie_port, bus_number, PCI_SLOT(devfn)) == 0) {
|
|
+ *value = 0xffffffff;
|
|
+ ret = PCIBIOS_DEVICE_NOT_FOUND;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: %02x:%02x.%01x/%02x:%01d\n", __func__, bus_number,
|
|
+ PCI_SLOT(devfn), PCI_FUNC(devfn), where, size);
|
|
+
|
|
+ PCIE_IRQ_LOCK(ifx_pcie_lock);
|
|
+ if (bus_number == 0) { /* RC itself */
|
|
+ unsigned int t;
|
|
+
|
|
+ t = (where & ~3);
|
|
+ data = ifx_pcie_rc_cfg_rd(pcie_port, t);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: rd local cfg, offset:%08x, data:%08x\n",
|
|
+ __func__, t, data);
|
|
+ } else {
|
|
+ unsigned int addr = pcie_bus_addr(bus_number, devfn, where);
|
|
+
|
|
+ data = ifx_pcie_cfg_rd(pcie_port, addr);
|
|
+ if (pcie_port == IFX_PCIE_PORT0) {
|
|
+#ifdef CONFIG_IFX_PCIE_HW_SWAP
|
|
+ data = le32_to_cpu(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ } else {
|
|
+#ifdef CONFIG_IFX_PCIE1_HW_SWAP
|
|
+ data = le32_to_cpu(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ }
|
|
+ }
|
|
+ /* To get a correct PCI topology, we have to restore the bus number to OS */
|
|
+ data = ifx_pcie_bus_enum_hack(bus, devfn, where, data, pcie_port, 1);
|
|
+
|
|
+ PCIE_IRQ_UNLOCK(ifx_pcie_lock);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_READ_CFG, "%s: read config: data=%08x raw=%08x\n",
|
|
+ __func__, (data >> (8 * (where & 3))) & mask[size & 7], data);
|
|
+
|
|
+ *value = (data >> (8 * (where & 3))) & mask[size & 7];
|
|
+out:
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static unsigned int ifx_pcie_size_to_value(int where, int size, unsigned int data, unsigned int value)
|
|
+{
|
|
+ unsigned int shift;
|
|
+ unsigned int tdata = data;
|
|
+
|
|
+ switch (size) {
|
|
+ case 1:
|
|
+ shift = (where & 0x3) << 3;
|
|
+ tdata &= ~(0xffU << shift);
|
|
+ tdata |= ((value & 0xffU) << shift);
|
|
+ break;
|
|
+ case 2:
|
|
+ shift = (where & 3) << 3;
|
|
+ tdata &= ~(0xffffU << shift);
|
|
+ tdata |= ((value & 0xffffU) << shift);
|
|
+ break;
|
|
+ case 4:
|
|
+ tdata = value;
|
|
+ break;
|
|
+ }
|
|
+ return tdata;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn static static int ifx_pcie_write_config(struct pci_bus *bus, unsigned int devfn,
|
|
+ * int where, int size, unsigned int value)
|
|
+ * \brief Write a value to PCI configuration space
|
|
+ *
|
|
+ * \param[in] bus Pointer to pci bus
|
|
+ * \param[in] devfn PCI device function number
|
|
+ * \param[in] where PCI register number
|
|
+ * \param[in] size The register size to be written
|
|
+ * \param[in] value The valule to be written
|
|
+ * \return PCIBIOS_BAD_REGISTER_NUMBER Invalid register number
|
|
+ * \return PCIBIOS_DEVICE_NOT_FOUND PCI device not found
|
|
+ * \return PCIBIOS_SUCCESSFUL OK
|
|
+ * \ingroup IFX_PCIE_OS
|
|
+ */
|
|
+static int ifx_pcie_write_config(struct pci_bus *bus, unsigned int devfn, int where, int size, unsigned int value)
|
|
+{
|
|
+ int bus_number = bus->number;
|
|
+ int ret = PCIBIOS_SUCCESSFUL;
|
|
+ struct ifx_pci_controller *ctrl = bus->sysdata;
|
|
+ int pcie_port = ctrl->port;
|
|
+ unsigned int tvalue = value;
|
|
+ unsigned int data;
|
|
+
|
|
+ /* Make sure the address is aligned to natural boundary */
|
|
+ if (unlikely(((size - 1) & where))) {
|
|
+ ret = PCIBIOS_BAD_REGISTER_NUMBER;
|
|
+ goto out;
|
|
+ }
|
|
+ /*
|
|
+ * If we are second controller, we have to cheat OS so that it assume
|
|
+ * its bus number starts from 0 in host controller
|
|
+ */
|
|
+ bus_number = ifx_pcie_bus_nr_deduct(bus_number, pcie_port);
|
|
+
|
|
+ /*
|
|
+ * We need to force the bus number to be zero on the root
|
|
+ * bus. Linux numbers the 2nd root bus to start after all
|
|
+ * busses on root 0.
|
|
+ */
|
|
+ if (bus->parent == NULL)
|
|
+ bus_number = 0;
|
|
+
|
|
+ if (pcie_valid_config(pcie_port, bus_number, PCI_SLOT(devfn)) == 0) {
|
|
+ ret = PCIBIOS_DEVICE_NOT_FOUND;
|
|
+ goto out;
|
|
+ }
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: %02x:%02x.%01x/%02x:%01d value=%08x\n", __func__,
|
|
+ bus_number, PCI_SLOT(devfn), PCI_FUNC(devfn), where, size, value);
|
|
+
|
|
+ /* XXX, some PCIe device may need some delay */
|
|
+ PCIE_IRQ_LOCK(ifx_pcie_lock);
|
|
+
|
|
+ /*
|
|
+ * To configure the correct bus topology using native way, we have to cheat Os so that
|
|
+ * it can configure the PCIe hardware correctly.
|
|
+ */
|
|
+ tvalue = ifx_pcie_bus_enum_hack(bus, devfn, where, value, pcie_port, 0);
|
|
+
|
|
+ if (bus_number == 0) { /* RC itself */
|
|
+ unsigned int t;
|
|
+
|
|
+ t = (where & ~3);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr local cfg, offset:%08x, fill:%08x\n", __func__, t, value);
|
|
+ data = ifx_pcie_rc_cfg_rd(pcie_port, t);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd local cfg, offset:%08x, data:%08x\n", __func__, t, data);
|
|
+
|
|
+ data = ifx_pcie_size_to_value(where, size, data, tvalue);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr local cfg, offset:%08x, value:%08x\n", __func__, t, data);
|
|
+ ifx_pcie_rc_cfg_wr(pcie_port, t, data);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd local cfg, offset:%08x, value:%08x\n",
|
|
+ __func__, t, ifx_pcie_rc_cfg_rd(pcie_port, t));
|
|
+ } else {
|
|
+ unsigned int addr = pcie_bus_addr(bus_number, devfn, where);
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: wr cfg, offset:%08x, fill:%08x\n", __func__, addr, value);
|
|
+ data = ifx_pcie_cfg_rd(pcie_port, addr);
|
|
+ if (pcie_port == IFX_PCIE_PORT0) {
|
|
+#ifdef CONFIG_IFX_PCIE_HW_SWAP
|
|
+ data = le32_to_cpu(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ } else {
|
|
+#ifdef CONFIG_IFX_PCIE1_HW_SWAP
|
|
+ data = le32_to_cpu(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ }
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG,"%s: rd cfg, offset:%08x, data:%08x\n", __func__, addr, data);
|
|
+
|
|
+ data = ifx_pcie_size_to_value(where, size, data, tvalue);
|
|
+ if (pcie_port == IFX_PCIE_PORT0) {
|
|
+#ifdef CONFIG_IFX_PCIE_HW_SWAP
|
|
+ data = cpu_to_le32(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ } else {
|
|
+#ifdef CONFIG_IFX_PCIE1_HW_SWAP
|
|
+ data = cpu_to_le32(data);
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ }
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: wr cfg, offset:%08x, value:%08x\n", __func__, addr, data);
|
|
+ ifx_pcie_cfg_wr(pcie_port, addr, data);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_WRITE_CFG, "%s: rd cfg, offset:%08x, value:%08x\n",
|
|
+ __func__, addr, ifx_pcie_cfg_rd(pcie_port, addr));
|
|
+ }
|
|
+ PCIE_IRQ_UNLOCK(ifx_pcie_lock);
|
|
+out:
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+static struct resource ifx_pcie_io_resource = {
|
|
+ .name = "PCIe0 I/O space",
|
|
+ .start = PCIE_IO_PHY_BASE,
|
|
+ .end = PCIE_IO_PHY_END,
|
|
+ .flags = IORESOURCE_IO,
|
|
+};
|
|
+
|
|
+static struct resource ifx_pcie_mem_resource = {
|
|
+ .name = "PCIe0 Memory space",
|
|
+ .start = PCIE_MEM_PHY_BASE,
|
|
+ .end = PCIE_MEM_PHY_END,
|
|
+ .flags = IORESOURCE_MEM,
|
|
+};
|
|
+
|
|
+static struct pci_ops ifx_pcie_ops = {
|
|
+ .read = ifx_pcie_read_config,
|
|
+ .write = ifx_pcie_write_config,
|
|
+};
|
|
+
|
|
+static struct ifx_pci_controller ifx_pcie_controller[IFX_PCIE_CORE_NR] = {
|
|
+ {
|
|
+ .pcic = {
|
|
+ .pci_ops = &ifx_pcie_ops,
|
|
+ .mem_resource = &ifx_pcie_mem_resource,
|
|
+ .io_resource = &ifx_pcie_io_resource,
|
|
+ },
|
|
+ .port = IFX_PCIE_PORT0,
|
|
+ },
|
|
+};
|
|
+
|
|
+static inline void pcie_core_int_clear_all(int pcie_port)
|
|
+{
|
|
+ unsigned int reg;
|
|
+ reg = IFX_REG_R32(PCIE_IRNCR(pcie_port));
|
|
+ reg &= PCIE_RC_CORE_COMBINED_INT;
|
|
+ IFX_REG_W32(reg, PCIE_IRNCR(pcie_port));
|
|
+}
|
|
+
|
|
+static irqreturn_t pcie_rc_core_isr(int irq, void *dev_id)
|
|
+{
|
|
+ struct ifx_pci_controller *ctrl = (struct ifx_pci_controller *)dev_id;
|
|
+ int pcie_port = ctrl->port;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_ISR, "PCIe RC error intr %d\n", irq);
|
|
+ pcie_core_int_clear_all(pcie_port);
|
|
+ return IRQ_HANDLED;
|
|
+}
|
|
+
|
|
+static int pcie_rc_core_int_init(int pcie_port)
|
|
+{
|
|
+ int ret;
|
|
+
|
|
+ /* Enable core interrupt */
|
|
+ IFX_REG_SET_BIT(PCIE_RC_CORE_COMBINED_INT, PCIE_IRNEN(pcie_port));
|
|
+
|
|
+ /* Clear it first */
|
|
+ IFX_REG_SET_BIT(PCIE_RC_CORE_COMBINED_INT, PCIE_IRNCR(pcie_port));
|
|
+ ret = request_irq(pcie_irqs[pcie_port].ir_irq.irq, pcie_rc_core_isr, IRQF_DISABLED,
|
|
+ pcie_irqs[pcie_port].ir_irq.name, &ifx_pcie_controller[pcie_port]);
|
|
+ if (ret)
|
|
+ printk(KERN_ERR "%s request irq %d failed\n", __func__, IFX_PCIE_IR);
|
|
+
|
|
+ return ret;
|
|
+}
|
|
+
|
|
+int ifx_pcie_bios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
+{
|
|
+ unsigned int irq_bit = 0;
|
|
+ int irq = 0;
|
|
+ struct ifx_pci_controller *ctrl = dev->bus->sysdata;
|
|
+ int pcie_port = ctrl->port;
|
|
+
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s port %d dev %s slot %d pin %d \n", __func__, pcie_port, pci_name(dev), slot, pin);
|
|
+
|
|
+ if ((pin == PCIE_LEGACY_DISABLE) || (pin > PCIE_LEGACY_INT_MAX)) {
|
|
+ printk(KERN_WARNING "WARNING: dev %s: invalid interrupt pin %d\n", pci_name(dev), pin);
|
|
+ return -1;
|
|
+ }
|
|
+ /* Pin index so minus one */
|
|
+ irq_bit = pcie_irqs[pcie_port].legacy_irq[pin - 1].irq_bit;
|
|
+ irq = pcie_irqs[pcie_port].legacy_irq[pin - 1].irq;
|
|
+ IFX_REG_SET_BIT(irq_bit, PCIE_IRNEN(pcie_port));
|
|
+ IFX_REG_SET_BIT(irq_bit, PCIE_IRNCR(pcie_port));
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_FIXUP, "%s dev %s irq %d assigned\n", __func__, pci_name(dev), irq);
|
|
+ return irq;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn int ifx_pcie_bios_plat_dev_init(struct pci_dev *dev)
|
|
+ * \brief Called to perform platform specific PCI setup
|
|
+ *
|
|
+ * \param[in] dev The Linux PCI device structure for the device to map
|
|
+ * \return OK
|
|
+ * \ingroup IFX_PCIE_OS
|
|
+ */
|
|
+int ifx_pcie_bios_plat_dev_init(struct pci_dev *dev)
|
|
+{
|
|
+ u16 config;
|
|
+ unsigned int dconfig;
|
|
+ int pos;
|
|
+ /* Enable reporting System errors and parity errors on all devices */
|
|
+ /* Enable parity checking and error reporting */
|
|
+ pci_read_config_word(dev, PCI_COMMAND, &config);
|
|
+ config |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR /*| PCI_COMMAND_INVALIDATE |
|
|
+ PCI_COMMAND_FAST_BACK*/;
|
|
+ pci_write_config_word(dev, PCI_COMMAND, config);
|
|
+
|
|
+ if (dev->subordinate) {
|
|
+ /* Set latency timers on sub bridges */
|
|
+ pci_write_config_byte(dev, PCI_SEC_LATENCY_TIMER, 0x40); /* XXX, */
|
|
+ /* More bridge error detection */
|
|
+ pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &config);
|
|
+ config |= PCI_BRIDGE_CTL_PARITY | PCI_BRIDGE_CTL_SERR;
|
|
+ pci_write_config_word(dev, PCI_BRIDGE_CONTROL, config);
|
|
+ }
|
|
+ /* Enable the PCIe normal error reporting */
|
|
+ pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
|
|
+ if (pos) {
|
|
+ /* Disable system error generation in response to error messages */
|
|
+ pci_read_config_word(dev, pos + PCI_EXP_RTCTL, &config);
|
|
+ config &= ~(PCI_EXP_RTCTL_SECEE | PCI_EXP_RTCTL_SENFEE | PCI_EXP_RTCTL_SEFEE);
|
|
+ pci_write_config_word(dev, pos + PCI_EXP_RTCTL, config);
|
|
+
|
|
+ /* Clear PCIE Capability's Device Status */
|
|
+ pci_read_config_word(dev, pos + PCI_EXP_DEVSTA, &config);
|
|
+ pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, config);
|
|
+
|
|
+ /* Update Device Control */
|
|
+ pci_read_config_word(dev, pos + PCI_EXP_DEVCTL, &config);
|
|
+ /* Correctable Error Reporting */
|
|
+ config |= PCI_EXP_DEVCTL_CERE;
|
|
+ /* Non-Fatal Error Reporting */
|
|
+ config |= PCI_EXP_DEVCTL_NFERE;
|
|
+ /* Fatal Error Reporting */
|
|
+ config |= PCI_EXP_DEVCTL_FERE;
|
|
+ /* Unsupported Request */
|
|
+ config |= PCI_EXP_DEVCTL_URRE;
|
|
+ pci_write_config_word(dev, pos + PCI_EXP_DEVCTL, config);
|
|
+ }
|
|
+
|
|
+ /* Find the Advanced Error Reporting capability */
|
|
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
|
|
+ if (pos) {
|
|
+ /* Clear Uncorrectable Error Status */
|
|
+ pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &dconfig);
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, dconfig);
|
|
+ /* Enable reporting of all uncorrectable errors */
|
|
+ /* Uncorrectable Error Mask - turned on bits disable errors */
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_UNCOR_MASK, 0);
|
|
+ /*
|
|
+ * Leave severity at HW default. This only controls if
|
|
+ * errors are reported as uncorrectable or
|
|
+ * correctable, not if the error is reported.
|
|
+ */
|
|
+ /* PCI_ERR_UNCOR_SEVER - Uncorrectable Error Severity */
|
|
+ /* Clear Correctable Error Status */
|
|
+ pci_read_config_dword(dev, pos + PCI_ERR_COR_STATUS, &dconfig);
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS, dconfig);
|
|
+ /* Enable reporting of all correctable errors */
|
|
+ /* Correctable Error Mask - turned on bits disable errors */
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_COR_MASK, 0);
|
|
+ /* Advanced Error Capabilities */
|
|
+ pci_read_config_dword(dev, pos + PCI_ERR_CAP, &dconfig);
|
|
+ /* ECRC Generation Enable */
|
|
+ if (dconfig & PCI_ERR_CAP_ECRC_GENC)
|
|
+ dconfig |= PCI_ERR_CAP_ECRC_GENE;
|
|
+ /* ECRC Check Enable */
|
|
+ if (dconfig & PCI_ERR_CAP_ECRC_CHKC)
|
|
+ dconfig |= PCI_ERR_CAP_ECRC_CHKE;
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_CAP, dconfig);
|
|
+
|
|
+ /* PCI_ERR_HEADER_LOG - Header Log Register (16 bytes) */
|
|
+ /* Enable Root Port's interrupt in response to error messages */
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND,
|
|
+ PCI_ERR_ROOT_CMD_COR_EN |
|
|
+ PCI_ERR_ROOT_CMD_NONFATAL_EN |
|
|
+ PCI_ERR_ROOT_CMD_FATAL_EN);
|
|
+ /* Clear the Root status register */
|
|
+ pci_read_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, &dconfig);
|
|
+ pci_write_config_dword(dev, pos + PCI_ERR_ROOT_STATUS, dconfig);
|
|
+ }
|
|
+ /* WAR, only 128 MRRS is supported, force all EPs to support this value */
|
|
+ pcie_set_readrq(dev, 128);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static void pcie_phy_rst(int pcie_port)
|
|
+{
|
|
+ pcie_phy_rst_assert(pcie_port);
|
|
+ pcie_phy_rst_deassert(pcie_port);
|
|
+ /* Make sure PHY PLL is stable */
|
|
+ udelay(20);
|
|
+}
|
|
+
|
|
+static int pcie_rc_initialize(int pcie_port)
|
|
+{
|
|
+ int i;
|
|
+
|
|
+ pcie_rcu_endian_setup(pcie_port);
|
|
+
|
|
+ pcie_ep_gpio_rst_init(pcie_port);
|
|
+
|
|
+ /*
|
|
+ * XXX, PCIe elastic buffer bug will cause not to be detected. One more
|
|
+ * reset PCIe PHY will solve this issue
|
|
+ */
|
|
+ for (i = 0; i < IFX_PCIE_PHY_LOOP_CNT; i++) {
|
|
+ /* Disable PCIe PHY Analog part for sanity check */
|
|
+ pcie_phy_pmu_disable(pcie_port);
|
|
+ pcie_phy_rst(pcie_port);
|
|
+ /* PCIe Core reset enabled, low active, sw programmed */
|
|
+ pcie_core_rst_assert(pcie_port);
|
|
+ /* Put PCIe EP in reset status */
|
|
+ pcie_device_rst_assert(pcie_port);
|
|
+ /* PCI PHY & Core reset disabled, high active, sw programmed */
|
|
+ pcie_core_rst_deassert(pcie_port);
|
|
+ /* Already in a quiet state, program PLL, enable PHY, check ready bit */
|
|
+ pcie_phy_clock_mode_setup(pcie_port);
|
|
+ /* Enable PCIe PHY and Clock */
|
|
+ pcie_core_pmu_setup(pcie_port);
|
|
+ /* Clear status registers */
|
|
+ pcie_status_register_clear(pcie_port);
|
|
+#ifdef CONFIG_PCI_MSI
|
|
+ pcie_msi_init(pcie_port);
|
|
+#endif /* CONFIG_PCI_MSI */
|
|
+ pcie_rc_cfg_reg_setup(pcie_port);
|
|
+
|
|
+ /* Once link is up, break out */
|
|
+ if (pcie_app_loigc_setup(pcie_port) == 0)
|
|
+ break;
|
|
+ }
|
|
+ if (i >= IFX_PCIE_PHY_LOOP_CNT) {
|
|
+ printk(KERN_ERR "%s link up failed!!!!!\n", __func__);
|
|
+ return -EIO;
|
|
+ }
|
|
+ /* NB, don't increase ACK/NACK timer timeout value, which will cause a lot of COR errors */
|
|
+ pcie_replay_time_update(pcie_port);
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+static int inline ifx_pcie_startup_port_nr(void)
|
|
+{
|
|
+ int pcie_port = IFX_PCIE_PORT0;
|
|
+
|
|
+ pcie_port = IFX_PCIE_PORT0;
|
|
+ return pcie_port;
|
|
+}
|
|
+
|
|
+/**
|
|
+ * \fn static int __init ifx_pcie_bios_init(void)
|
|
+ * \brief Initialize the IFX PCIe controllers
|
|
+ *
|
|
+ * \return -EIO PCIe PHY link is not up
|
|
+ * \return -ENOMEM Configuration/IO space failed to map
|
|
+ * \return 0 OK
|
|
+ * \ingroup IFX_PCIE_OS
|
|
+ */
|
|
+extern int (*ltqpci_plat_arch_init)(struct pci_dev *dev);
|
|
+extern int (*ltqpci_map_irq)(const struct pci_dev *dev, u8 slot, u8 pin);
|
|
+static int __devinit ltq_pcie_probe(struct platform_device *pdev)
|
|
+{
|
|
+ char ver_str[128] = {0};
|
|
+ void __iomem *io_map_base;
|
|
+ int pcie_port;
|
|
+ int startup_port;
|
|
+ ltqpci_map_irq = ifx_pcie_bios_map_irq;
|
|
+ ltqpci_plat_arch_init = ifx_pcie_bios_plat_dev_init;
|
|
+ /* Enable AHB Master/ Slave */
|
|
+ pcie_ahb_pmu_setup();
|
|
+
|
|
+ startup_port = ifx_pcie_startup_port_nr();
|
|
+
|
|
+ ltq_gpio_request(&pdev->dev, IFX_PCIE_GPIO_RESET, 0, 1, "pcie-reset");
|
|
+
|
|
+ for (pcie_port = startup_port; pcie_port < IFX_PCIE_CORE_NR; pcie_port++){
|
|
+ if (pcie_rc_initialize(pcie_port) == 0) {
|
|
+ /* Otherwise, warning will pop up */
|
|
+ io_map_base = ioremap(PCIE_IO_PHY_PORT_TO_BASE(pcie_port), PCIE_IO_SIZE);
|
|
+ if (io_map_base == NULL)
|
|
+ return -ENOMEM;
|
|
+ ifx_pcie_controller[pcie_port].pcic.io_map_base = (unsigned long)io_map_base;
|
|
+ register_pci_controller(&ifx_pcie_controller[pcie_port].pcic);
|
|
+ /* XXX, clear error status */
|
|
+ pcie_rc_core_int_init(pcie_port);
|
|
+ }
|
|
+ }
|
|
+
|
|
+ printk(KERN_INFO "%s", ver_str);
|
|
+return 0;
|
|
+}
|
|
+
|
|
+static struct platform_driver ltq_pcie_driver = {
|
|
+ .probe = ltq_pcie_probe,
|
|
+ .driver = {
|
|
+ .name = "pcie-xway",
|
|
+ .owner = THIS_MODULE,
|
|
+ },
|
|
+};
|
|
+
|
|
+int __init pciebios_init(void)
|
|
+{
|
|
+ return platform_driver_register(<q_pcie_driver);
|
|
+}
|
|
+
|
|
+arch_initcall(pciebios_init);
|
|
--- /dev/null
|
|
+++ b/arch/mips/pci/pcie-lantiq.h
|
|
@@ -0,0 +1,1305 @@
|
|
+/******************************************************************************
|
|
+**
|
|
+** FILE NAME : ifxmips_pcie_reg.h
|
|
+** PROJECT : IFX UEIP for VRX200
|
|
+** MODULES : PCIe module
|
|
+**
|
|
+** DATE : 02 Mar 2009
|
|
+** AUTHOR : Lei Chuanhua
|
|
+** DESCRIPTION : PCIe Root Complex Driver
|
|
+** COPYRIGHT : Copyright (c) 2009
|
|
+** Infineon Technologies AG
|
|
+** Am Campeon 1-12, 85579 Neubiberg, Germany
|
|
+**
|
|
+** This program is free software; you can redistribute it and/or modify
|
|
+** it under the terms of the GNU General Public License as published by
|
|
+** the Free Software Foundation; either version 2 of the License, or
|
|
+** (at your option) any later version.
|
|
+** HISTORY
|
|
+** $Version $Date $Author $Comment
|
|
+** 0.0.1 17 Mar,2009 Lei Chuanhua Initial version
|
|
+*******************************************************************************/
|
|
+#ifndef IFXMIPS_PCIE_REG_H
|
|
+#define IFXMIPS_PCIE_REG_H
|
|
+#include <linux/version.h>
|
|
+#include <linux/types.h>
|
|
+#include <linux/pci.h>
|
|
+#include <linux/interrupt.h>
|
|
+/*!
|
|
+ \file ifxmips_pcie_reg.h
|
|
+ \ingroup IFX_PCIE
|
|
+ \brief header file for PCIe module register definition
|
|
+*/
|
|
+/* PCIe Address Mapping Base */
|
|
+#define PCIE_CFG_PHY_BASE 0x1D000000UL
|
|
+#define PCIE_CFG_BASE (KSEG1 + PCIE_CFG_PHY_BASE)
|
|
+#define PCIE_CFG_SIZE (8 * 1024 * 1024)
|
|
+
|
|
+#define PCIE_MEM_PHY_BASE 0x1C000000UL
|
|
+#define PCIE_MEM_BASE (KSEG1 + PCIE_MEM_PHY_BASE)
|
|
+#define PCIE_MEM_SIZE (16 * 1024 * 1024)
|
|
+#define PCIE_MEM_PHY_END (PCIE_MEM_PHY_BASE + PCIE_MEM_SIZE - 1)
|
|
+
|
|
+#define PCIE_IO_PHY_BASE 0x1D800000UL
|
|
+#define PCIE_IO_BASE (KSEG1 + PCIE_IO_PHY_BASE)
|
|
+#define PCIE_IO_SIZE (1 * 1024 * 1024)
|
|
+#define PCIE_IO_PHY_END (PCIE_IO_PHY_BASE + PCIE_IO_SIZE - 1)
|
|
+
|
|
+#define PCIE_RC_CFG_BASE (KSEG1 + 0x1D900000)
|
|
+#define PCIE_APP_LOGIC_REG (KSEG1 + 0x1E100900)
|
|
+#define PCIE_MSI_PHY_BASE 0x1F600000UL
|
|
+
|
|
+#define PCIE_PDI_PHY_BASE 0x1F106800UL
|
|
+#define PCIE_PDI_BASE (KSEG1 + PCIE_PDI_PHY_BASE)
|
|
+#define PCIE_PDI_SIZE 0x400
|
|
+
|
|
+#define PCIE1_CFG_PHY_BASE 0x19000000UL
|
|
+#define PCIE1_CFG_BASE (KSEG1 + PCIE1_CFG_PHY_BASE)
|
|
+#define PCIE1_CFG_SIZE (8 * 1024 * 1024)
|
|
+
|
|
+#define PCIE1_MEM_PHY_BASE 0x18000000UL
|
|
+#define PCIE1_MEM_BASE (KSEG1 + PCIE1_MEM_PHY_BASE)
|
|
+#define PCIE1_MEM_SIZE (16 * 1024 * 1024)
|
|
+#define PCIE1_MEM_PHY_END (PCIE1_MEM_PHY_BASE + PCIE1_MEM_SIZE - 1)
|
|
+
|
|
+#define PCIE1_IO_PHY_BASE 0x19800000UL
|
|
+#define PCIE1_IO_BASE (KSEG1 + PCIE1_IO_PHY_BASE)
|
|
+#define PCIE1_IO_SIZE (1 * 1024 * 1024)
|
|
+#define PCIE1_IO_PHY_END (PCIE1_IO_PHY_BASE + PCIE1_IO_SIZE - 1)
|
|
+
|
|
+#define PCIE1_RC_CFG_BASE (KSEG1 + 0x19900000)
|
|
+#define PCIE1_APP_LOGIC_REG (KSEG1 + 0x1E100700)
|
|
+#define PCIE1_MSI_PHY_BASE 0x1F400000UL
|
|
+
|
|
+#define PCIE1_PDI_PHY_BASE 0x1F700400UL
|
|
+#define PCIE1_PDI_BASE (KSEG1 + PCIE1_PDI_PHY_BASE)
|
|
+#define PCIE1_PDI_SIZE 0x400
|
|
+
|
|
+#define PCIE_CFG_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_CFG_BASE) : (PCIE_CFG_BASE))
|
|
+#define PCIE_MEM_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_MEM_BASE) : (PCIE_MEM_BASE))
|
|
+#define PCIE_IO_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_IO_BASE) : (PCIE_IO_BASE))
|
|
+#define PCIE_MEM_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_MEM_PHY_BASE) : (PCIE_MEM_PHY_BASE))
|
|
+#define PCIE_MEM_PHY_PORT_TO_END(X) ((X) > 0 ? (PCIE1_MEM_PHY_END) : (PCIE_MEM_PHY_END))
|
|
+#define PCIE_IO_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_IO_PHY_BASE) : (PCIE_IO_PHY_BASE))
|
|
+#define PCIE_IO_PHY_PORT_TO_END(X) ((X) > 0 ? (PCIE1_IO_PHY_END) : (PCIE_IO_PHY_END))
|
|
+#define PCIE_APP_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_APP_LOGIC_REG) : (PCIE_APP_LOGIC_REG))
|
|
+#define PCIE_RC_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_RC_CFG_BASE) : (PCIE_RC_CFG_BASE))
|
|
+#define PCIE_PHY_PORT_TO_BASE(X) ((X) > 0 ? (PCIE1_PDI_BASE) : (PCIE_PDI_BASE))
|
|
+
|
|
+/* PCIe Application Logic Register */
|
|
+/* RC Core Control Register */
|
|
+#define PCIE_RC_CCR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x10)
|
|
+/* This should be enabled after initializing configuratin registers
|
|
+ * Also should check link status retraining bit
|
|
+ */
|
|
+#define PCIE_RC_CCR_LTSSM_ENABLE 0x00000001 /* Enable LTSSM to continue link establishment */
|
|
+
|
|
+/* RC Core Debug Register */
|
|
+#define PCIE_RC_DR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x14)
|
|
+#define PCIE_RC_DR_DLL_UP 0x00000001 /* Data Link Layer Up */
|
|
+#define PCIE_RC_DR_CURRENT_POWER_STATE 0x0000000E /* Current Power State */
|
|
+#define PCIE_RC_DR_CURRENT_POWER_STATE_S 1
|
|
+#define PCIE_RC_DR_CURRENT_LTSSM_STATE 0x000001F0 /* Current LTSSM State */
|
|
+#define PCIE_RC_DR_CURRENT_LTSSM_STATE_S 4
|
|
+
|
|
+#define PCIE_RC_DR_PM_DEV_STATE 0x00000E00 /* Power Management D-State */
|
|
+#define PCIE_RC_DR_PM_DEV_STATE_S 9
|
|
+
|
|
+#define PCIE_RC_DR_PM_ENABLED 0x00001000 /* Power Management State from PMU */
|
|
+#define PCIE_RC_DR_PME_EVENT_ENABLED 0x00002000 /* Power Management Event Enable State */
|
|
+#define PCIE_RC_DR_AUX_POWER_ENABLED 0x00004000 /* Auxiliary Power Enable */
|
|
+
|
|
+/* Current Power State Definition */
|
|
+enum {
|
|
+ PCIE_RC_DR_D0 = 0,
|
|
+ PCIE_RC_DR_D1, /* Not supported */
|
|
+ PCIE_RC_DR_D2, /* Not supported */
|
|
+ PCIE_RC_DR_D3,
|
|
+ PCIE_RC_DR_UN,
|
|
+};
|
|
+
|
|
+/* PHY Link Status Register */
|
|
+#define PCIE_PHY_SR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x18)
|
|
+#define PCIE_PHY_SR_PHY_LINK_UP 0x00000001 /* PHY Link Up/Down Indicator */
|
|
+
|
|
+/* Electromechanical Control Register */
|
|
+#define PCIE_EM_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x1C)
|
|
+#define PCIE_EM_CR_CARD_IS_PRESENT 0x00000001 /* Card Presence Detect State */
|
|
+#define PCIE_EM_CR_MRL_OPEN 0x00000002 /* MRL Sensor State */
|
|
+#define PCIE_EM_CR_POWER_FAULT_SET 0x00000004 /* Power Fault Detected */
|
|
+#define PCIE_EM_CR_MRL_SENSOR_SET 0x00000008 /* MRL Sensor Changed */
|
|
+#define PCIE_EM_CR_PRESENT_DETECT_SET 0x00000010 /* Card Presense Detect Changed */
|
|
+#define PCIE_EM_CR_CMD_CPL_INT_SET 0x00000020 /* Command Complete Interrupt */
|
|
+#define PCIE_EM_CR_SYS_INTERLOCK_SET 0x00000040 /* System Electromechanical IterLock Engaged */
|
|
+#define PCIE_EM_CR_ATTENTION_BUTTON_SET 0x00000080 /* Attention Button Pressed */
|
|
+
|
|
+/* Interrupt Status Register */
|
|
+#define PCIE_IR_SR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x20)
|
|
+#define PCIE_IR_SR_PME_CAUSE_MSI 0x00000002 /* MSI caused by PME */
|
|
+#define PCIE_IR_SR_HP_PME_WAKE_GEN 0x00000004 /* Hotplug PME Wake Generation */
|
|
+#define PCIE_IR_SR_HP_MSI 0x00000008 /* Hotplug MSI */
|
|
+#define PCIE_IR_SR_AHB_LU_ERR 0x00000030 /* AHB Bridge Lookup Error Signals */
|
|
+#define PCIE_IR_SR_AHB_LU_ERR_S 4
|
|
+#define PCIE_IR_SR_INT_MSG_NUM 0x00003E00 /* Interrupt Message Number */
|
|
+#define PCIE_IR_SR_INT_MSG_NUM_S 9
|
|
+#define PCIE_IR_SR_AER_INT_MSG_NUM 0xF8000000 /* Advanced Error Interrupt Message Number */
|
|
+#define PCIE_IR_SR_AER_INT_MSG_NUM_S 27
|
|
+
|
|
+/* Message Control Register */
|
|
+#define PCIE_MSG_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x30)
|
|
+#define PCIE_MSG_CR_GEN_PME_TURN_OFF_MSG 0x00000001 /* Generate PME Turn Off Message */
|
|
+#define PCIE_MSG_CR_GEN_UNLOCK_MSG 0x00000002 /* Generate Unlock Message */
|
|
+
|
|
+#define PCIE_VDM_DR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x34)
|
|
+
|
|
+/* Vendor-Defined Message Requester ID Register */
|
|
+#define PCIE_VDM_RID(X) (PCIE_APP_PORT_TO_BASE (X) + 0x38)
|
|
+#define PCIE_VDM_RID_VENROR_MSG_REQ_ID 0x0000FFFF
|
|
+#define PCIE_VDM_RID_VDMRID_S 0
|
|
+
|
|
+/* ASPM Control Register */
|
|
+#define PCIE_ASPM_CR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x40)
|
|
+#define PCIE_ASPM_CR_HOT_RST 0x00000001 /* Hot Reset Request to the downstream device */
|
|
+#define PCIE_ASPM_CR_REQ_EXIT_L1 0x00000002 /* Request to Exit L1 */
|
|
+#define PCIE_ASPM_CR_REQ_ENTER_L1 0x00000004 /* Request to Enter L1 */
|
|
+
|
|
+/* Vendor Message DW0 Register */
|
|
+#define PCIE_VM_MSG_DW0(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x50)
|
|
+#define PCIE_VM_MSG_DW0_TYPE 0x0000001F /* Message type */
|
|
+#define PCIE_VM_MSG_DW0_TYPE_S 0
|
|
+#define PCIE_VM_MSG_DW0_FORMAT 0x00000060 /* Format */
|
|
+#define PCIE_VM_MSG_DW0_FORMAT_S 5
|
|
+#define PCIE_VM_MSG_DW0_TC 0x00007000 /* Traffic Class */
|
|
+#define PCIE_VM_MSG_DW0_TC_S 12
|
|
+#define PCIE_VM_MSG_DW0_ATTR 0x000C0000 /* Atrributes */
|
|
+#define PCIE_VM_MSG_DW0_ATTR_S 18
|
|
+#define PCIE_VM_MSG_DW0_EP_TLP 0x00100000 /* Poisoned TLP */
|
|
+#define PCIE_VM_MSG_DW0_TD 0x00200000 /* TLP Digest */
|
|
+#define PCIE_VM_MSG_DW0_LEN 0xFFC00000 /* Length */
|
|
+#define PCIE_VM_MSG_DW0_LEN_S 22
|
|
+
|
|
+/* Format Definition */
|
|
+enum {
|
|
+ PCIE_VM_MSG_FORMAT_00 = 0, /* 3DW Hdr, no data*/
|
|
+ PCIE_VM_MSG_FORMAT_01, /* 4DW Hdr, no data */
|
|
+ PCIE_VM_MSG_FORMAT_10, /* 3DW Hdr, with data */
|
|
+ PCIE_VM_MSG_FORMAT_11, /* 4DW Hdr, with data */
|
|
+};
|
|
+
|
|
+/* Traffic Class Definition */
|
|
+enum {
|
|
+ PCIE_VM_MSG_TC0 = 0,
|
|
+ PCIE_VM_MSG_TC1,
|
|
+ PCIE_VM_MSG_TC2,
|
|
+ PCIE_VM_MSG_TC3,
|
|
+ PCIE_VM_MSG_TC4,
|
|
+ PCIE_VM_MSG_TC5,
|
|
+ PCIE_VM_MSG_TC6,
|
|
+ PCIE_VM_MSG_TC7,
|
|
+};
|
|
+
|
|
+/* Attributes Definition */
|
|
+enum {
|
|
+ PCIE_VM_MSG_ATTR_00 = 0, /* RO and No Snoop cleared */
|
|
+ PCIE_VM_MSG_ATTR_01, /* RO cleared , No Snoop set */
|
|
+ PCIE_VM_MSG_ATTR_10, /* RO set, No Snoop cleared*/
|
|
+ PCIE_VM_MSG_ATTR_11, /* RO and No Snoop set */
|
|
+};
|
|
+
|
|
+/* Payload Size Definition */
|
|
+#define PCIE_VM_MSG_LEN_MIN 0
|
|
+#define PCIE_VM_MSG_LEN_MAX 1024
|
|
+
|
|
+/* Vendor Message DW1 Register */
|
|
+#define PCIE_VM_MSG_DW1(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x54)
|
|
+#define PCIE_VM_MSG_DW1_FUNC_NUM 0x00000070 /* Function Number */
|
|
+#define PCIE_VM_MSG_DW1_FUNC_NUM_S 8
|
|
+#define PCIE_VM_MSG_DW1_CODE 0x00FF0000 /* Message Code */
|
|
+#define PCIE_VM_MSG_DW1_CODE_S 16
|
|
+#define PCIE_VM_MSG_DW1_TAG 0xFF000000 /* Tag */
|
|
+#define PCIE_VM_MSG_DW1_TAG_S 24
|
|
+
|
|
+#define PCIE_VM_MSG_DW2(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x58)
|
|
+#define PCIE_VM_MSG_DW3(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x5C)
|
|
+
|
|
+/* Vendor Message Request Register */
|
|
+#define PCIE_VM_MSG_REQR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x60)
|
|
+#define PCIE_VM_MSG_REQR_REQ 0x00000001 /* Vendor Message Request */
|
|
+
|
|
+
|
|
+/* AHB Slave Side Band Control Register */
|
|
+#define PCIE_AHB_SSB(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x70)
|
|
+#define PCIE_AHB_SSB_REQ_BCM 0x00000001 /* Slave Reques BCM filed */
|
|
+#define PCIE_AHB_SSB_REQ_EP 0x00000002 /* Slave Reques EP filed */
|
|
+#define PCIE_AHB_SSB_REQ_TD 0x00000004 /* Slave Reques TD filed */
|
|
+#define PCIE_AHB_SSB_REQ_ATTR 0x00000018 /* Slave Reques Attribute number */
|
|
+#define PCIE_AHB_SSB_REQ_ATTR_S 3
|
|
+#define PCIE_AHB_SSB_REQ_TC 0x000000E0 /* Slave Request TC Field */
|
|
+#define PCIE_AHB_SSB_REQ_TC_S 5
|
|
+
|
|
+/* AHB Master SideBand Ctrl Register */
|
|
+#define PCIE_AHB_MSB(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x74)
|
|
+#define PCIE_AHB_MSB_RESP_ATTR 0x00000003 /* Master Response Attribute number */
|
|
+#define PCIE_AHB_MSB_RESP_ATTR_S 0
|
|
+#define PCIE_AHB_MSB_RESP_BAD_EOT 0x00000004 /* Master Response Badeot filed */
|
|
+#define PCIE_AHB_MSB_RESP_BCM 0x00000008 /* Master Response BCM filed */
|
|
+#define PCIE_AHB_MSB_RESP_EP 0x00000010 /* Master Response EP filed */
|
|
+#define PCIE_AHB_MSB_RESP_TD 0x00000020 /* Master Response TD filed */
|
|
+#define PCIE_AHB_MSB_RESP_FUN_NUM 0x000003C0 /* Master Response Function number */
|
|
+#define PCIE_AHB_MSB_RESP_FUN_NUM_S 6
|
|
+
|
|
+/* AHB Control Register, fixed bus enumeration exception */
|
|
+#define PCIE_AHB_CTRL(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0x78)
|
|
+#define PCIE_AHB_CTRL_BUS_ERROR_SUPPRESS 0x00000001
|
|
+
|
|
+/* Interrupt Enalbe Register */
|
|
+#define PCIE_IRNEN(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xF4)
|
|
+#define PCIE_IRNCR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xF8)
|
|
+#define PCIE_IRNICR(X) (volatile u32*)(PCIE_APP_PORT_TO_BASE(X) + 0xFC)
|
|
+
|
|
+/* PCIe interrupt enable/control/capture register definition */
|
|
+#define PCIE_IRN_AER_REPORT 0x00000001 /* AER Interrupt */
|
|
+#define PCIE_IRN_AER_MSIX 0x00000002 /* Advanced Error MSI-X Interrupt */
|
|
+#define PCIE_IRN_PME 0x00000004 /* PME Interrupt */
|
|
+#define PCIE_IRN_HOTPLUG 0x00000008 /* Hotplug Interrupt */
|
|
+#define PCIE_IRN_RX_VDM_MSG 0x00000010 /* Vendor-Defined Message Interrupt */
|
|
+#define PCIE_IRN_RX_CORRECTABLE_ERR_MSG 0x00000020 /* Correctable Error Message Interrupt */
|
|
+#define PCIE_IRN_RX_NON_FATAL_ERR_MSG 0x00000040 /* Non-fatal Error Message */
|
|
+#define PCIE_IRN_RX_FATAL_ERR_MSG 0x00000080 /* Fatal Error Message */
|
|
+#define PCIE_IRN_RX_PME_MSG 0x00000100 /* PME Message Interrupt */
|
|
+#define PCIE_IRN_RX_PME_TURNOFF_ACK 0x00000200 /* PME Turnoff Ack Message Interrupt */
|
|
+#define PCIE_IRN_AHB_BR_FATAL_ERR 0x00000400 /* AHB Fatal Error Interrupt */
|
|
+#define PCIE_IRN_LINK_AUTO_BW_STATUS 0x00000800 /* Link Auto Bandwidth Status Interrupt */
|
|
+#define PCIE_IRN_BW_MGT 0x00001000 /* Bandwidth Managment Interrupt */
|
|
+#define PCIE_IRN_INTA 0x00002000 /* INTA */
|
|
+#define PCIE_IRN_INTB 0x00004000 /* INTB */
|
|
+#define PCIE_IRN_INTC 0x00008000 /* INTC */
|
|
+#define PCIE_IRN_INTD 0x00010000 /* INTD */
|
|
+#define PCIE_IRN_WAKEUP 0x00020000 /* Wake up Interrupt */
|
|
+
|
|
+#define PCIE_RC_CORE_COMBINED_INT (PCIE_IRN_AER_REPORT | PCIE_IRN_AER_MSIX | PCIE_IRN_PME | \
|
|
+ PCIE_IRN_HOTPLUG | PCIE_IRN_RX_VDM_MSG | PCIE_IRN_RX_CORRECTABLE_ERR_MSG |\
|
|
+ PCIE_IRN_RX_NON_FATAL_ERR_MSG | PCIE_IRN_RX_FATAL_ERR_MSG | \
|
|
+ PCIE_IRN_RX_PME_MSG | PCIE_IRN_RX_PME_TURNOFF_ACK | PCIE_IRN_AHB_BR_FATAL_ERR | \
|
|
+ PCIE_IRN_LINK_AUTO_BW_STATUS | PCIE_IRN_BW_MGT)
|
|
+/* PCIe RC Configuration Register */
|
|
+#define PCIE_VDID(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x00)
|
|
+
|
|
+/* Bit definition from pci_reg.h */
|
|
+#define PCIE_PCICMDSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x04)
|
|
+#define PCIE_CCRID(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x08)
|
|
+#define PCIE_CLSLTHTBR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x0C) /* EP only */
|
|
+/* BAR0, BAR1,Only necessary if the bridges implements a device-specific register set or memory buffer */
|
|
+#define PCIE_BAR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x10) /* Not used*/
|
|
+#define PCIE_BAR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x14) /* Not used */
|
|
+
|
|
+#define PCIE_BNR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x18) /* Mandatory */
|
|
+/* Bus Number Register bits */
|
|
+#define PCIE_BNR_PRIMARY_BUS_NUM 0x000000FF
|
|
+#define PCIE_BNR_PRIMARY_BUS_NUM_S 0
|
|
+#define PCIE_PNR_SECONDARY_BUS_NUM 0x0000FF00
|
|
+#define PCIE_PNR_SECONDARY_BUS_NUM_S 8
|
|
+#define PCIE_PNR_SUB_BUS_NUM 0x00FF0000
|
|
+#define PCIE_PNR_SUB_BUS_NUM_S 16
|
|
+
|
|
+/* IO Base/Limit Register bits */
|
|
+#define PCIE_IOBLSECS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x1C) /* RC only */
|
|
+#define PCIE_IOBLSECS_32BIT_IO_ADDR 0x00000001
|
|
+#define PCIE_IOBLSECS_IO_BASE_ADDR 0x000000F0
|
|
+#define PCIE_IOBLSECS_IO_BASE_ADDR_S 4
|
|
+#define PCIE_IOBLSECS_32BIT_IOLIMT 0x00000100
|
|
+#define PCIE_IOBLSECS_IO_LIMIT_ADDR 0x0000F000
|
|
+#define PCIE_IOBLSECS_IO_LIMIT_ADDR_S 12
|
|
+
|
|
+/* Non-prefetchable Memory Base/Limit Register bit */
|
|
+#define PCIE_MBML(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x20) /* RC only */
|
|
+#define PCIE_MBML_MEM_BASE_ADDR 0x0000FFF0
|
|
+#define PCIE_MBML_MEM_BASE_ADDR_S 4
|
|
+#define PCIE_MBML_MEM_LIMIT_ADDR 0xFFF00000
|
|
+#define PCIE_MBML_MEM_LIMIT_ADDR_S 20
|
|
+
|
|
+/* Prefetchable Memory Base/Limit Register bit */
|
|
+#define PCIE_PMBL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x24) /* RC only */
|
|
+#define PCIE_PMBL_64BIT_ADDR 0x00000001
|
|
+#define PCIE_PMBL_UPPER_12BIT 0x0000FFF0
|
|
+#define PCIE_PMBL_UPPER_12BIT_S 4
|
|
+#define PCIE_PMBL_E64MA 0x00010000
|
|
+#define PCIE_PMBL_END_ADDR 0xFFF00000
|
|
+#define PCIE_PMBL_END_ADDR_S 20
|
|
+#define PCIE_PMBU32(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x28) /* RC only */
|
|
+#define PCIE_PMLU32(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x2C) /* RC only */
|
|
+
|
|
+/* I/O Base/Limit Upper 16 bits register */
|
|
+#define PCIE_IO_BANDL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x30) /* RC only */
|
|
+#define PCIE_IO_BANDL_UPPER_16BIT_IO_BASE 0x0000FFFF
|
|
+#define PCIE_IO_BANDL_UPPER_16BIT_IO_BASE_S 0
|
|
+#define PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT 0xFFFF0000
|
|
+#define PCIE_IO_BANDL_UPPER_16BIT_IO_LIMIT_S 16
|
|
+
|
|
+#define PCIE_CPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x34)
|
|
+#define PCIE_EBBAR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x38)
|
|
+
|
|
+/* Interrupt and Secondary Bridge Control Register */
|
|
+#define PCIE_INTRBCTRL(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x3C)
|
|
+
|
|
+#define PCIE_INTRBCTRL_INT_LINE 0x000000FF
|
|
+#define PCIE_INTRBCTRL_INT_LINE_S 0
|
|
+#define PCIE_INTRBCTRL_INT_PIN 0x0000FF00
|
|
+#define PCIE_INTRBCTRL_INT_PIN_S 8
|
|
+#define PCIE_INTRBCTRL_PARITY_ERR_RESP_ENABLE 0x00010000 /* #PERR */
|
|
+#define PCIE_INTRBCTRL_SERR_ENABLE 0x00020000 /* #SERR */
|
|
+#define PCIE_INTRBCTRL_ISA_ENABLE 0x00040000 /* ISA enable, IO 64KB only */
|
|
+#define PCIE_INTRBCTRL_VGA_ENABLE 0x00080000 /* VGA enable */
|
|
+#define PCIE_INTRBCTRL_VGA_16BIT_DECODE 0x00100000 /* VGA 16bit decode */
|
|
+#define PCIE_INTRBCTRL_RST_SECONDARY_BUS 0x00400000 /* Secondary bus rest, hot rest, 1ms */
|
|
+/* Others are read only */
|
|
+enum {
|
|
+ PCIE_INTRBCTRL_INT_NON = 0,
|
|
+ PCIE_INTRBCTRL_INTA,
|
|
+ PCIE_INTRBCTRL_INTB,
|
|
+ PCIE_INTRBCTRL_INTC,
|
|
+ PCIE_INTRBCTRL_INTD,
|
|
+};
|
|
+
|
|
+#define PCIE_PM_CAPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x40)
|
|
+
|
|
+/* Power Management Control and Status Register */
|
|
+#define PCIE_PM_CSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x44)
|
|
+
|
|
+#define PCIE_PM_CSR_POWER_STATE 0x00000003 /* Power State */
|
|
+#define PCIE_PM_CSR_POWER_STATE_S 0
|
|
+#define PCIE_PM_CSR_SW_RST 0x00000008 /* Soft Reset Enabled */
|
|
+#define PCIE_PM_CSR_PME_ENABLE 0x00000100 /* PME Enable */
|
|
+#define PCIE_PM_CSR_PME_STATUS 0x00008000 /* PME status */
|
|
+
|
|
+/* MSI Capability Register for EP */
|
|
+#define PCIE_MCAPR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x50)
|
|
+
|
|
+#define PCIE_MCAPR_MSI_CAP_ID 0x000000FF /* MSI Capability ID */
|
|
+#define PCIE_MCAPR_MSI_CAP_ID_S 0
|
|
+#define PCIE_MCAPR_MSI_NEXT_CAP_PTR 0x0000FF00 /* Next Capability Pointer */
|
|
+#define PCIE_MCAPR_MSI_NEXT_CAP_PTR_S 8
|
|
+#define PCIE_MCAPR_MSI_ENABLE 0x00010000 /* MSI Enable */
|
|
+#define PCIE_MCAPR_MULTI_MSG_CAP 0x000E0000 /* Multiple Message Capable */
|
|
+#define PCIE_MCAPR_MULTI_MSG_CAP_S 17
|
|
+#define PCIE_MCAPR_MULTI_MSG_ENABLE 0x00700000 /* Multiple Message Enable */
|
|
+#define PCIE_MCAPR_MULTI_MSG_ENABLE_S 20
|
|
+#define PCIE_MCAPR_ADDR64_CAP 0X00800000 /* 64-bit Address Capable */
|
|
+
|
|
+/* MSI Message Address Register */
|
|
+#define PCIE_MA(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x54)
|
|
+
|
|
+#define PCIE_MA_ADDR_MASK 0xFFFFFFFC /* Message Address */
|
|
+
|
|
+/* MSI Message Upper Address Register */
|
|
+#define PCIE_MUA(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x58)
|
|
+
|
|
+/* MSI Message Data Register */
|
|
+#define PCIE_MD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x5C)
|
|
+
|
|
+#define PCIE_MD_DATA 0x0000FFFF /* Message Data */
|
|
+#define PCIE_MD_DATA_S 0
|
|
+
|
|
+/* PCI Express Capability Register */
|
|
+#define PCIE_XCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x70)
|
|
+
|
|
+#define PCIE_XCAP_ID 0x000000FF /* PCI Express Capability ID */
|
|
+#define PCIE_XCAP_ID_S 0
|
|
+#define PCIE_XCAP_NEXT_CAP 0x0000FF00 /* Next Capability Pointer */
|
|
+#define PCIE_XCAP_NEXT_CAP_S 8
|
|
+#define PCIE_XCAP_VER 0x000F0000 /* PCI Express Capability Version */
|
|
+#define PCIE_XCAP_VER_S 16
|
|
+#define PCIE_XCAP_DEV_PORT_TYPE 0x00F00000 /* Device Port Type */
|
|
+#define PCIE_XCAP_DEV_PORT_TYPE_S 20
|
|
+#define PCIE_XCAP_SLOT_IMPLEMENTED 0x01000000 /* Slot Implemented */
|
|
+#define PCIE_XCAP_MSG_INT_NUM 0x3E000000 /* Interrupt Message Number */
|
|
+#define PCIE_XCAP_MSG_INT_NUM_S 25
|
|
+
|
|
+/* Device Capability Register */
|
|
+#define PCIE_DCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x74)
|
|
+
|
|
+#define PCIE_DCAP_MAX_PAYLOAD_SIZE 0x00000007 /* Max Payload size */
|
|
+#define PCIE_DCAP_MAX_PAYLOAD_SIZE_S 0
|
|
+#define PCIE_DCAP_PHANTOM_FUNC 0x00000018 /* Phanton Function, not supported */
|
|
+#define PCIE_DCAP_PHANTOM_FUNC_S 3
|
|
+#define PCIE_DCAP_EXT_TAG 0x00000020 /* Extended Tag Field */
|
|
+#define PCIE_DCAP_EP_L0S_LATENCY 0x000001C0 /* EP L0s latency only */
|
|
+#define PCIE_DCAP_EP_L0S_LATENCY_S 6
|
|
+#define PCIE_DCAP_EP_L1_LATENCY 0x00000E00 /* EP L1 latency only */
|
|
+#define PCIE_DCAP_EP_L1_LATENCY_S 9
|
|
+#define PCIE_DCAP_ROLE_BASE_ERR_REPORT 0x00008000 /* Role Based ERR */
|
|
+
|
|
+/* Maximum payload size supported */
|
|
+enum {
|
|
+ PCIE_MAX_PAYLOAD_128 = 0,
|
|
+ PCIE_MAX_PAYLOAD_256,
|
|
+ PCIE_MAX_PAYLOAD_512,
|
|
+ PCIE_MAX_PAYLOAD_1024,
|
|
+ PCIE_MAX_PAYLOAD_2048,
|
|
+ PCIE_MAX_PAYLOAD_4096,
|
|
+};
|
|
+
|
|
+/* Device Control and Status Register */
|
|
+#define PCIE_DCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x78)
|
|
+
|
|
+#define PCIE_DCTLSTS_CORRECTABLE_ERR_EN 0x00000001 /* COR-ERR */
|
|
+#define PCIE_DCTLSTS_NONFATAL_ERR_EN 0x00000002 /* Non-fatal ERR */
|
|
+#define PCIE_DCTLSTS_FATAL_ERR_EN 0x00000004 /* Fatal ERR */
|
|
+#define PCIE_DCTLSYS_UR_REQ_EN 0x00000008 /* UR ERR */
|
|
+#define PCIE_DCTLSTS_RELAXED_ORDERING_EN 0x00000010 /* Enable relaxing ordering */
|
|
+#define PCIE_DCTLSTS_MAX_PAYLOAD_SIZE 0x000000E0 /* Max payload mask */
|
|
+#define PCIE_DCTLSTS_MAX_PAYLOAD_SIZE_S 5
|
|
+#define PCIE_DCTLSTS_EXT_TAG_EN 0x00000100 /* Extended tag field */
|
|
+#define PCIE_DCTLSTS_PHANTOM_FUNC_EN 0x00000200 /* Phantom Function Enable */
|
|
+#define PCIE_DCTLSTS_AUX_PM_EN 0x00000400 /* AUX Power PM Enable */
|
|
+#define PCIE_DCTLSTS_NO_SNOOP_EN 0x00000800 /* Enable no snoop, except root port*/
|
|
+#define PCIE_DCTLSTS_MAX_READ_SIZE 0x00007000 /* Max Read Request size*/
|
|
+#define PCIE_DCTLSTS_MAX_READ_SIZE_S 12
|
|
+#define PCIE_DCTLSTS_CORRECTABLE_ERR 0x00010000 /* COR-ERR Detected */
|
|
+#define PCIE_DCTLSTS_NONFATAL_ERR 0x00020000 /* Non-Fatal ERR Detected */
|
|
+#define PCIE_DCTLSTS_FATAL_ER 0x00040000 /* Fatal ERR Detected */
|
|
+#define PCIE_DCTLSTS_UNSUPPORTED_REQ 0x00080000 /* UR Detected */
|
|
+#define PCIE_DCTLSTS_AUX_POWER 0x00100000 /* Aux Power Detected */
|
|
+#define PCIE_DCTLSTS_TRANSACT_PENDING 0x00200000 /* Transaction pending */
|
|
+
|
|
+#define PCIE_DCTLSTS_ERR_EN (PCIE_DCTLSTS_CORRECTABLE_ERR_EN | \
|
|
+ PCIE_DCTLSTS_NONFATAL_ERR_EN | PCIE_DCTLSTS_FATAL_ERR_EN | \
|
|
+ PCIE_DCTLSYS_UR_REQ_EN)
|
|
+
|
|
+/* Link Capability Register */
|
|
+#define PCIE_LCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7C)
|
|
+#define PCIE_LCAP_MAX_LINK_SPEED 0x0000000F /* Max link speed, 0x1 by default */
|
|
+#define PCIE_LCAP_MAX_LINK_SPEED_S 0
|
|
+#define PCIE_LCAP_MAX_LENGTH_WIDTH 0x000003F0 /* Maxium Length Width */
|
|
+#define PCIE_LCAP_MAX_LENGTH_WIDTH_S 4
|
|
+#define PCIE_LCAP_ASPM_LEVEL 0x00000C00 /* Active State Link PM Support */
|
|
+#define PCIE_LCAP_ASPM_LEVEL_S 10
|
|
+#define PCIE_LCAP_L0S_EIXT_LATENCY 0x00007000 /* L0s Exit Latency */
|
|
+#define PCIE_LCAP_L0S_EIXT_LATENCY_S 12
|
|
+#define PCIE_LCAP_L1_EXIT_LATENCY 0x00038000 /* L1 Exit Latency */
|
|
+#define PCIE_LCAP_L1_EXIT_LATENCY_S 15
|
|
+#define PCIE_LCAP_CLK_PM 0x00040000 /* Clock Power Management */
|
|
+#define PCIE_LCAP_SDER 0x00080000 /* Surprise Down Error Reporting */
|
|
+#define PCIE_LCAP_DLL_ACTIVE_REPROT 0x00100000 /* Data Link Layer Active Reporting Capable */
|
|
+#define PCIE_LCAP_PORT_NUM 0xFF0000000 /* Port number */
|
|
+#define PCIE_LCAP_PORT_NUM_S 24
|
|
+
|
|
+/* Maximum Length width definition */
|
|
+#define PCIE_MAX_LENGTH_WIDTH_RES 0x00
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X1 0x01 /* Default */
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X2 0x02
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X4 0x04
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X8 0x08
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X12 0x0C
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X16 0x10
|
|
+#define PCIE_MAX_LENGTH_WIDTH_X32 0x20
|
|
+
|
|
+/* Active State Link PM definition */
|
|
+enum {
|
|
+ PCIE_ASPM_RES0 = 0,
|
|
+ PCIE_ASPM_L0S_ENTRY_SUPPORT, /* L0s */
|
|
+ PCIE_ASPM_RES1,
|
|
+ PCIE_ASPM_L0S_L1_ENTRY_SUPPORT, /* L0s and L1, default */
|
|
+};
|
|
+
|
|
+/* L0s Exit Latency definition */
|
|
+enum {
|
|
+ PCIE_L0S_EIXT_LATENCY_L64NS = 0, /* < 64 ns */
|
|
+ PCIE_L0S_EIXT_LATENCY_B64A128, /* > 64 ns < 128 ns */
|
|
+ PCIE_L0S_EIXT_LATENCY_B128A256, /* > 128 ns < 256 ns */
|
|
+ PCIE_L0S_EIXT_LATENCY_B256A512, /* > 256 ns < 512 ns */
|
|
+ PCIE_L0S_EIXT_LATENCY_B512TO1U, /* > 512 ns < 1 us */
|
|
+ PCIE_L0S_EIXT_LATENCY_B1A2U, /* > 1 us < 2 us */
|
|
+ PCIE_L0S_EIXT_LATENCY_B2A4U, /* > 2 us < 4 us */
|
|
+ PCIE_L0S_EIXT_LATENCY_M4US, /* > 4 us */
|
|
+};
|
|
+
|
|
+/* L1 Exit Latency definition */
|
|
+enum {
|
|
+ PCIE_L1_EXIT_LATENCY_L1US = 0, /* < 1 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B1A2, /* > 1 us < 2 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B2A4, /* > 2 us < 4 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B4A8, /* > 4 us < 8 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B8A16, /* > 8 us < 16 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B16A32, /* > 16 us < 32 us */
|
|
+ PCIE_L1_EXIT_LATENCY_B32A64, /* > 32 us < 64 us */
|
|
+ PCIE_L1_EXIT_LATENCY_M64US, /* > 64 us */
|
|
+};
|
|
+
|
|
+/* Link Control and Status Register */
|
|
+#define PCIE_LCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x80)
|
|
+#define PCIE_LCTLSTS_ASPM_ENABLE 0x00000003 /* Active State Link PM Control */
|
|
+#define PCIE_LCTLSTS_ASPM_ENABLE_S 0
|
|
+#define PCIE_LCTLSTS_RCB128 0x00000008 /* Read Completion Boundary 128*/
|
|
+#define PCIE_LCTLSTS_LINK_DISABLE 0x00000010 /* Link Disable */
|
|
+#define PCIE_LCTLSTS_RETRIAN_LINK 0x00000020 /* Retrain Link */
|
|
+#define PCIE_LCTLSTS_COM_CLK_CFG 0x00000040 /* Common Clock Configuration */
|
|
+#define PCIE_LCTLSTS_EXT_SYNC 0x00000080 /* Extended Synch */
|
|
+#define PCIE_LCTLSTS_CLK_PM_EN 0x00000100 /* Enable Clock Powerm Management */
|
|
+#define PCIE_LCTLSTS_LINK_SPEED 0x000F0000 /* Link Speed */
|
|
+#define PCIE_LCTLSTS_LINK_SPEED_S 16
|
|
+#define PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH 0x03F00000 /* Negotiated Link Width */
|
|
+#define PCIE_LCTLSTS_NEGOTIATED_LINK_WIDTH_S 20
|
|
+#define PCIE_LCTLSTS_RETRAIN_PENDING 0x08000000 /* Link training is ongoing */
|
|
+#define PCIE_LCTLSTS_SLOT_CLK_CFG 0x10000000 /* Slot Clock Configuration */
|
|
+#define PCIE_LCTLSTS_DLL_ACTIVE 0x20000000 /* Data Link Layer Active */
|
|
+
|
|
+/* Slot Capabilities Register */
|
|
+#define PCIE_SLCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x84)
|
|
+
|
|
+/* Slot Capabilities */
|
|
+#define PCIE_SLCTLSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x88)
|
|
+
|
|
+/* Root Control and Capability Register */
|
|
+#define PCIE_RCTLCAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x8C)
|
|
+#define PCIE_RCTLCAP_SERR_ON_CORRECTABLE_ERR 0x00000001 /* #SERR on COR-ERR */
|
|
+#define PCIE_RCTLCAP_SERR_ON_NONFATAL_ERR 0x00000002 /* #SERR on Non-Fatal ERR */
|
|
+#define PCIE_RCTLCAP_SERR_ON_FATAL_ERR 0x00000004 /* #SERR on Fatal ERR */
|
|
+#define PCIE_RCTLCAP_PME_INT_EN 0x00000008 /* PME Interrupt Enable */
|
|
+#define PCIE_RCTLCAP_SERR_ENABLE (PCIE_RCTLCAP_SERR_ON_CORRECTABLE_ERR | \
|
|
+ PCIE_RCTLCAP_SERR_ON_NONFATAL_ERR | PCIE_RCTLCAP_SERR_ON_FATAL_ERR)
|
|
+/* Root Status Register */
|
|
+#define PCIE_RSTS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x90)
|
|
+#define PCIE_RSTS_PME_REQ_ID 0x0000FFFF /* PME Request ID */
|
|
+#define PCIE_RSTS_PME_REQ_ID_S 0
|
|
+#define PCIE_RSTS_PME_STATUS 0x00010000 /* PME Status */
|
|
+#define PCIE_RSTS_PME_PENDING 0x00020000 /* PME Pending */
|
|
+
|
|
+/* PCI Express Enhanced Capability Header */
|
|
+#define PCIE_ENHANCED_CAP(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x100)
|
|
+#define PCIE_ENHANCED_CAP_ID 0x0000FFFF /* PCI Express Extended Capability ID */
|
|
+#define PCIE_ENHANCED_CAP_ID_S 0
|
|
+#define PCIE_ENHANCED_CAP_VER 0x000F0000 /* Capability Version */
|
|
+#define PCIE_ENHANCED_CAP_VER_S 16
|
|
+#define PCIE_ENHANCED_CAP_NEXT_OFFSET 0xFFF00000 /* Next Capability Offset */
|
|
+#define PCIE_ENHANCED_CAP_NEXT_OFFSET_S 20
|
|
+
|
|
+/* Uncorrectable Error Status Register */
|
|
+#define PCIE_UES_R(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x104)
|
|
+#define PCIE_DATA_LINK_PROTOCOL_ERR 0x00000010 /* Data Link Protocol Error Status */
|
|
+#define PCIE_SURPRISE_DOWN_ERROR 0x00000020 /* Surprise Down Error Status */
|
|
+#define PCIE_POISONED_TLP 0x00001000 /* Poisoned TLP Status */
|
|
+#define PCIE_FC_PROTOCOL_ERR 0x00002000 /* Flow Control Protocol Error Status */
|
|
+#define PCIE_COMPLETION_TIMEOUT 0x00004000 /* Completion Timeout Status */
|
|
+#define PCIE_COMPLETOR_ABORT 0x00008000 /* Completer Abort Error */
|
|
+#define PCIE_UNEXPECTED_COMPLETION 0x00010000 /* Unexpected Completion Status */
|
|
+#define PCIE_RECEIVER_OVERFLOW 0x00020000 /* Receive Overflow Status */
|
|
+#define PCIE_MALFORNED_TLP 0x00040000 /* Malformed TLP Stauts */
|
|
+#define PCIE_ECRC_ERR 0x00080000 /* ECRC Error Stauts */
|
|
+#define PCIE_UR_REQ 0x00100000 /* Unsupported Request Error Status */
|
|
+#define PCIE_ALL_UNCORRECTABLE_ERR (PCIE_DATA_LINK_PROTOCOL_ERR | PCIE_SURPRISE_DOWN_ERROR | \
|
|
+ PCIE_POISONED_TLP | PCIE_FC_PROTOCOL_ERR | PCIE_COMPLETION_TIMEOUT | \
|
|
+ PCIE_COMPLETOR_ABORT | PCIE_UNEXPECTED_COMPLETION | PCIE_RECEIVER_OVERFLOW |\
|
|
+ PCIE_MALFORNED_TLP | PCIE_ECRC_ERR | PCIE_UR_REQ)
|
|
+
|
|
+/* Uncorrectable Error Mask Register, Mask means no report */
|
|
+#define PCIE_UEMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x108)
|
|
+
|
|
+/* Uncorrectable Error Severity Register */
|
|
+#define PCIE_UESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x10C)
|
|
+
|
|
+/* Correctable Error Status Register */
|
|
+#define PCIE_CESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x110)
|
|
+#define PCIE_RX_ERR 0x00000001 /* Receive Error Status */
|
|
+#define PCIE_BAD_TLP 0x00000040 /* Bad TLP Status */
|
|
+#define PCIE_BAD_DLLP 0x00000080 /* Bad DLLP Status */
|
|
+#define PCIE_REPLAY_NUM_ROLLOVER 0x00000100 /* Replay Number Rollover Status */
|
|
+#define PCIE_REPLAY_TIMER_TIMEOUT_ERR 0x00001000 /* Reply Timer Timeout Status */
|
|
+#define PCIE_ADVISORY_NONFTAL_ERR 0x00002000 /* Advisory Non-Fatal Error Status */
|
|
+#define PCIE_CORRECTABLE_ERR (PCIE_RX_ERR | PCIE_BAD_TLP | PCIE_BAD_DLLP | PCIE_REPLAY_NUM_ROLLOVER |\
|
|
+ PCIE_REPLAY_TIMER_TIMEOUT_ERR | PCIE_ADVISORY_NONFTAL_ERR)
|
|
+
|
|
+/* Correctable Error Mask Register */
|
|
+#define PCIE_CEMR(X) (volatile u32*)(PCIE_RC_CFG_BASE + 0x114)
|
|
+
|
|
+/* Advanced Error Capabilities and Control Register */
|
|
+#define PCIE_AECCR(X) (volatile u32*)(PCIE_RC_CFG_BASE + 0x118)
|
|
+#define PCIE_AECCR_FIRST_ERR_PTR 0x0000001F /* First Error Pointer */
|
|
+#define PCIE_AECCR_FIRST_ERR_PTR_S 0
|
|
+#define PCIE_AECCR_ECRC_GEN_CAP 0x00000020 /* ECRC Generation Capable */
|
|
+#define PCIE_AECCR_ECRC_GEN_EN 0x00000040 /* ECRC Generation Enable */
|
|
+#define PCIE_AECCR_ECRC_CHECK_CAP 0x00000080 /* ECRC Check Capable */
|
|
+#define PCIE_AECCR_ECRC_CHECK_EN 0x00000100 /* ECRC Check Enable */
|
|
+
|
|
+/* Header Log Register 1 */
|
|
+#define PCIE_HLR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x11C)
|
|
+
|
|
+/* Header Log Register 2 */
|
|
+#define PCIE_HLR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x120)
|
|
+
|
|
+/* Header Log Register 3 */
|
|
+#define PCIE_HLR3(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x124)
|
|
+
|
|
+/* Header Log Register 4 */
|
|
+#define PCIE_HLR4(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x128)
|
|
+
|
|
+/* Root Error Command Register */
|
|
+#define PCIE_RECR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x12C)
|
|
+#define PCIE_RECR_CORRECTABLE_ERR_REPORT_EN 0x00000001 /* COR-ERR */
|
|
+#define PCIE_RECR_NONFATAL_ERR_REPORT_EN 0x00000002 /* Non-Fatal ERR */
|
|
+#define PCIE_RECR_FATAL_ERR_REPORT_EN 0x00000004 /* Fatal ERR */
|
|
+#define PCIE_RECR_ERR_REPORT_EN (PCIE_RECR_CORRECTABLE_ERR_REPORT_EN | \
|
|
+ PCIE_RECR_NONFATAL_ERR_REPORT_EN | PCIE_RECR_FATAL_ERR_REPORT_EN)
|
|
+
|
|
+/* Root Error Status Register */
|
|
+#define PCIE_RESR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x130)
|
|
+#define PCIE_RESR_CORRECTABLE_ERR 0x00000001 /* COR-ERR Receveid */
|
|
+#define PCIE_RESR_MULTI_CORRECTABLE_ERR 0x00000002 /* Multiple COR-ERR Received */
|
|
+#define PCIE_RESR_FATAL_NOFATAL_ERR 0x00000004 /* ERR Fatal/Non-Fatal Received */
|
|
+#define PCIE_RESR_MULTI_FATAL_NOFATAL_ERR 0x00000008 /* Multiple ERR Fatal/Non-Fatal Received */
|
|
+#define PCIE_RESR_FIRST_UNCORRECTABLE_FATAL_ERR 0x00000010 /* First UN-COR Fatal */
|
|
+#define PCIR_RESR_NON_FATAL_ERR 0x00000020 /* Non-Fatal Error Message Received */
|
|
+#define PCIE_RESR_FATAL_ERR 0x00000040 /* Fatal Message Received */
|
|
+#define PCIE_RESR_AER_INT_MSG_NUM 0xF8000000 /* Advanced Error Interrupt Message Number */
|
|
+#define PCIE_RESR_AER_INT_MSG_NUM_S 27
|
|
+
|
|
+/* Error Source Indentification Register */
|
|
+#define PCIE_ESIR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x134)
|
|
+#define PCIE_ESIR_CORRECTABLE_ERR_SRC_ID 0x0000FFFF
|
|
+#define PCIE_ESIR_CORRECTABLE_ERR_SRC_ID_S 0
|
|
+#define PCIE_ESIR_FATAL_NON_FATAL_SRC_ID 0xFFFF0000
|
|
+#define PCIE_ESIR_FATAL_NON_FATAL_SRC_ID_S 16
|
|
+
|
|
+/* VC Enhanced Capability Header */
|
|
+#define PCIE_VC_ECH(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x140)
|
|
+
|
|
+/* Port VC Capability Register */
|
|
+#define PCIE_PVC1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x144)
|
|
+#define PCIE_PVC1_EXT_VC_CNT 0x00000007 /* Extended VC Count */
|
|
+#define PCIE_PVC1_EXT_VC_CNT_S 0
|
|
+#define PCIE_PVC1_LOW_PRI_EXT_VC_CNT 0x00000070 /* Low Priority Extended VC Count */
|
|
+#define PCIE_PVC1_LOW_PRI_EXT_VC_CNT_S 4
|
|
+#define PCIE_PVC1_REF_CLK 0x00000300 /* Reference Clock */
|
|
+#define PCIE_PVC1_REF_CLK_S 8
|
|
+#define PCIE_PVC1_PORT_ARB_TAB_ENTRY_SIZE 0x00000C00 /* Port Arbitration Table Entry Size */
|
|
+#define PCIE_PVC1_PORT_ARB_TAB_ENTRY_SIZE_S 10
|
|
+
|
|
+/* Extended Virtual Channel Count Defintion */
|
|
+#define PCIE_EXT_VC_CNT_MIN 0
|
|
+#define PCIE_EXT_VC_CNT_MAX 7
|
|
+
|
|
+/* Port Arbitration Table Entry Size Definition */
|
|
+enum {
|
|
+ PCIE_PORT_ARB_TAB_ENTRY_SIZE_S1BIT = 0,
|
|
+ PCIE_PORT_ARB_TAB_ENTRY_SIZE_S2BIT,
|
|
+ PCIE_PORT_ARB_TAB_ENTRY_SIZE_S4BIT,
|
|
+ PCIE_PORT_ARB_TAB_ENTRY_SIZE_S8BIT,
|
|
+};
|
|
+
|
|
+/* Port VC Capability Register 2 */
|
|
+#define PCIE_PVC2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x148)
|
|
+#define PCIE_PVC2_VC_ARB_16P_FIXED_WRR 0x00000001 /* HW Fixed arbitration, 16 phase WRR */
|
|
+#define PCIE_PVC2_VC_ARB_32P_WRR 0x00000002 /* 32 phase WRR */
|
|
+#define PCIE_PVC2_VC_ARB_64P_WRR 0x00000004 /* 64 phase WRR */
|
|
+#define PCIE_PVC2_VC_ARB_128P_WRR 0x00000008 /* 128 phase WRR */
|
|
+#define PCIE_PVC2_VC_ARB_WRR 0x0000000F
|
|
+#define PCIE_PVC2_VC_ARB_TAB_OFFSET 0xFF000000 /* VC arbitration table offset, not support */
|
|
+#define PCIE_PVC2_VC_ARB_TAB_OFFSET_S 24
|
|
+
|
|
+/* Port VC Control and Status Register */
|
|
+#define PCIE_PVCCRSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x14C)
|
|
+#define PCIE_PVCCRSR_LOAD_VC_ARB_TAB 0x00000001 /* Load VC Arbitration Table */
|
|
+#define PCIE_PVCCRSR_VC_ARB_SEL 0x0000000E /* VC Arbitration Select */
|
|
+#define PCIE_PVCCRSR_VC_ARB_SEL_S 1
|
|
+#define PCIE_PVCCRSR_VC_ARB_TAB_STATUS 0x00010000 /* Arbitration Status */
|
|
+
|
|
+/* VC0 Resource Capability Register */
|
|
+#define PCIE_VC0_RC(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x150)
|
|
+#define PCIE_VC0_RC_PORT_ARB_HW_FIXED 0x00000001 /* HW Fixed arbitration */
|
|
+#define PCIE_VC0_RC_PORT_ARB_32P_WRR 0x00000002 /* 32 phase WRR */
|
|
+#define PCIE_VC0_RC_PORT_ARB_64P_WRR 0x00000004 /* 64 phase WRR */
|
|
+#define PCIE_VC0_RC_PORT_ARB_128P_WRR 0x00000008 /* 128 phase WRR */
|
|
+#define PCIE_VC0_RC_PORT_ARB_TM_128P_WRR 0x00000010 /* Time-based 128 phase WRR */
|
|
+#define PCIE_VC0_RC_PORT_ARB_TM_256P_WRR 0x00000020 /* Time-based 256 phase WRR */
|
|
+#define PCIE_VC0_RC_PORT_ARB (PCIE_VC0_RC_PORT_ARB_HW_FIXED | PCIE_VC0_RC_PORT_ARB_32P_WRR |\
|
|
+ PCIE_VC0_RC_PORT_ARB_64P_WRR | PCIE_VC0_RC_PORT_ARB_128P_WRR | \
|
|
+ PCIE_VC0_RC_PORT_ARB_TM_128P_WRR | PCIE_VC0_RC_PORT_ARB_TM_256P_WRR)
|
|
+
|
|
+#define PCIE_VC0_RC_REJECT_SNOOP 0x00008000 /* Reject Snoop Transactioin */
|
|
+#define PCIE_VC0_RC_MAX_TIMESLOTS 0x007F0000 /* Maximum time Slots */
|
|
+#define PCIE_VC0_RC_MAX_TIMESLOTS_S 16
|
|
+#define PCIE_VC0_RC_PORT_ARB_TAB_OFFSET 0xFF000000 /* Port Arbitration Table Offset */
|
|
+#define PCIE_VC0_RC_PORT_ARB_TAB_OFFSET_S 24
|
|
+
|
|
+/* VC0 Resource Control Register */
|
|
+#define PCIE_VC0_RC0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x154)
|
|
+#define PCIE_VC0_RC0_TVM0 0x00000001 /* TC0 and VC0 */
|
|
+#define PCIE_VC0_RC0_TVM1 0x00000002 /* TC1 and VC1 */
|
|
+#define PCIE_VC0_RC0_TVM2 0x00000004 /* TC2 and VC2 */
|
|
+#define PCIE_VC0_RC0_TVM3 0x00000008 /* TC3 and VC3 */
|
|
+#define PCIE_VC0_RC0_TVM4 0x00000010 /* TC4 and VC4 */
|
|
+#define PCIE_VC0_RC0_TVM5 0x00000020 /* TC5 and VC5 */
|
|
+#define PCIE_VC0_RC0_TVM6 0x00000040 /* TC6 and VC6 */
|
|
+#define PCIE_VC0_RC0_TVM7 0x00000080 /* TC7 and VC7 */
|
|
+#define PCIE_VC0_RC0_TC_VC 0x000000FF /* TC/VC mask */
|
|
+
|
|
+#define PCIE_VC0_RC0_LOAD_PORT_ARB_TAB 0x00010000 /* Load Port Arbitration Table */
|
|
+#define PCIE_VC0_RC0_PORT_ARB_SEL 0x000E0000 /* Port Arbitration Select */
|
|
+#define PCIE_VC0_RC0_PORT_ARB_SEL_S 17
|
|
+#define PCIE_VC0_RC0_VC_ID 0x07000000 /* VC ID */
|
|
+#define PCIE_VC0_RC0_VC_ID_S 24
|
|
+#define PCIE_VC0_RC0_VC_EN 0x80000000 /* VC Enable */
|
|
+
|
|
+/* VC0 Resource Status Register */
|
|
+#define PCIE_VC0_RSR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x158)
|
|
+#define PCIE_VC0_RSR0_PORT_ARB_TAB_STATUS 0x00010000 /* Port Arbitration Table Status,not used */
|
|
+#define PCIE_VC0_RSR0_VC_NEG_PENDING 0x00020000 /* VC Negotiation Pending */
|
|
+
|
|
+/* Ack Latency Timer and Replay Timer Register */
|
|
+#define PCIE_ALTRT(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x700)
|
|
+#define PCIE_ALTRT_ROUND_TRIP_LATENCY_LIMIT 0x0000FFFF /* Round Trip Latency Time Limit */
|
|
+#define PCIE_ALTRT_ROUND_TRIP_LATENCY_LIMIT_S 0
|
|
+#define PCIE_ALTRT_REPLAY_TIME_LIMIT 0xFFFF0000 /* Replay Time Limit */
|
|
+#define PCIE_ALTRT_REPLAY_TIME_LIMIT_S 16
|
|
+
|
|
+/* Other Message Register */
|
|
+#define PCIE_OMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x704)
|
|
+
|
|
+/* Port Force Link Register */
|
|
+#define PCIE_PFLR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x708)
|
|
+#define PCIE_PFLR_LINK_NUM 0x000000FF /* Link Number */
|
|
+#define PCIE_PFLR_LINK_NUM_S 0
|
|
+#define PCIE_PFLR_FORCE_LINK 0x00008000 /* Force link */
|
|
+#define PCIE_PFLR_LINK_STATE 0x003F0000 /* Link State */
|
|
+#define PCIE_PFLR_LINK_STATE_S 16
|
|
+#define PCIE_PFLR_LOW_POWER_ENTRY_CNT 0xFF000000 /* Low Power Entrance Count, only for EP */
|
|
+#define PCIE_PFLR_LOW_POWER_ENTRY_CNT_S 24
|
|
+
|
|
+/* Ack Frequency Register */
|
|
+#define PCIE_AFR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x70C)
|
|
+#define PCIE_AFR_AF 0x000000FF /* Ack Frequency */
|
|
+#define PCIE_AFR_AF_S 0
|
|
+#define PCIE_AFR_FTS_NUM 0x0000FF00 /* The number of Fast Training Sequence from L0S to L0 */
|
|
+#define PCIE_AFR_FTS_NUM_S 8
|
|
+#define PCIE_AFR_COM_FTS_NUM 0x00FF0000 /* N_FTS; when common clock is used*/
|
|
+#define PCIE_AFR_COM_FTS_NUM_S 16
|
|
+#define PCIE_AFR_L0S_ENTRY_LATENCY 0x07000000 /* L0s Entrance Latency */
|
|
+#define PCIE_AFR_L0S_ENTRY_LATENCY_S 24
|
|
+#define PCIE_AFR_L1_ENTRY_LATENCY 0x38000000 /* L1 Entrance Latency */
|
|
+#define PCIE_AFR_L1_ENTRY_LATENCY_S 27
|
|
+#define PCIE_AFR_FTS_NUM_DEFAULT 32
|
|
+#define PCIE_AFR_L0S_ENTRY_LATENCY_DEFAULT 7
|
|
+#define PCIE_AFR_L1_ENTRY_LATENCY_DEFAULT 5
|
|
+
|
|
+/* Port Link Control Register */
|
|
+#define PCIE_PLCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x710)
|
|
+#define PCIE_PLCR_OTHER_MSG_REQ 0x00000001 /* Other Message Request */
|
|
+#define PCIE_PLCR_SCRAMBLE_DISABLE 0x00000002 /* Scramble Disable */
|
|
+#define PCIE_PLCR_LOOPBACK_EN 0x00000004 /* Loopback Enable */
|
|
+#define PCIE_PLCR_LTSSM_HOT_RST 0x00000008 /* Force LTSSM to the hot reset */
|
|
+#define PCIE_PLCR_DLL_LINK_EN 0x00000020 /* Enable Link initialization */
|
|
+#define PCIE_PLCR_FAST_LINK_SIM_EN 0x00000080 /* Sets all internal timers to fast mode for simulation purposes */
|
|
+#define PCIE_PLCR_LINK_MODE 0x003F0000 /* Link Mode Enable Mask */
|
|
+#define PCIE_PLCR_LINK_MODE_S 16
|
|
+#define PCIE_PLCR_CORRUPTED_CRC_EN 0x02000000 /* Enabled Corrupt CRC */
|
|
+
|
|
+/* Lane Skew Register */
|
|
+#define PCIE_LSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x714)
|
|
+#define PCIE_LSR_LANE_SKEW_NUM 0x00FFFFFF /* Insert Lane Skew for Transmit, not applicable */
|
|
+#define PCIE_LSR_LANE_SKEW_NUM_S 0
|
|
+#define PCIE_LSR_FC_DISABLE 0x01000000 /* Disable of Flow Control */
|
|
+#define PCIE_LSR_ACKNAK_DISABLE 0x02000000 /* Disable of Ack/Nak */
|
|
+#define PCIE_LSR_LANE_DESKEW_DISABLE 0x80000000 /* Disable of Lane-to-Lane Skew */
|
|
+
|
|
+/* Symbol Number Register */
|
|
+#define PCIE_SNR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x718)
|
|
+#define PCIE_SNR_TS 0x0000000F /* Number of TS Symbol */
|
|
+#define PCIE_SNR_TS_S 0
|
|
+#define PCIE_SNR_SKP 0x00000700 /* Number of SKP Symbol */
|
|
+#define PCIE_SNR_SKP_S 8
|
|
+#define PCIE_SNR_REPLAY_TIMER 0x0007C000 /* Timer Modifier for Replay Timer */
|
|
+#define PCIE_SNR_REPLAY_TIMER_S 14
|
|
+#define PCIE_SNR_ACKNAK_LATENCY_TIMER 0x00F80000 /* Timer Modifier for Ack/Nak Latency Timer */
|
|
+#define PCIE_SNR_ACKNAK_LATENCY_TIMER_S 19
|
|
+#define PCIE_SNR_FC_TIMER 0x1F000000 /* Timer Modifier for Flow Control Watchdog Timer */
|
|
+#define PCIE_SNR_FC_TIMER_S 28
|
|
+
|
|
+/* Symbol Timer Register and Filter Mask Register 1 */
|
|
+#define PCIE_STRFMR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x71C)
|
|
+#define PCIE_STRFMR_SKP_INTERVAL 0x000007FF /* SKP lnterval Value */
|
|
+#define PCIE_STRFMR_SKP_INTERVAL_S 0
|
|
+#define PCIE_STRFMR_FC_WDT_DISABLE 0x00008000 /* Disable of FC Watchdog Timer */
|
|
+#define PCIE_STRFMR_TLP_FUNC_MISMATCH_OK 0x00010000 /* Mask Function Mismatch Filtering for Incoming Requests */
|
|
+#define PCIE_STRFMR_POISONED_TLP_OK 0x00020000 /* Mask Poisoned TLP Filtering */
|
|
+#define PCIE_STRFMR_BAR_MATCH_OK 0x00040000 /* Mask BAR Match Filtering */
|
|
+#define PCIE_STRFMR_TYPE1_CFG_REQ_OK 0x00080000 /* Mask Type 1 Configuration Request Filtering */
|
|
+#define PCIE_STRFMR_LOCKED_REQ_OK 0x00100000 /* Mask Locked Request Filtering */
|
|
+#define PCIE_STRFMR_CPL_TAG_ERR_RULES_OK 0x00200000 /* Mask Tag Error Rules for Received Completions */
|
|
+#define PCIE_STRFMR_CPL_REQUESTOR_ID_MISMATCH_OK 0x00400000 /* Mask Requester ID Mismatch Error for Received Completions */
|
|
+#define PCIE_STRFMR_CPL_FUNC_MISMATCH_OK 0x00800000 /* Mask Function Mismatch Error for Received Completions */
|
|
+#define PCIE_STRFMR_CPL_TC_MISMATCH_OK 0x01000000 /* Mask Traffic Class Mismatch Error for Received Completions */
|
|
+#define PCIE_STRFMR_CPL_ATTR_MISMATCH_OK 0x02000000 /* Mask Attribute Mismatch Error for Received Completions */
|
|
+#define PCIE_STRFMR_CPL_LENGTH_MISMATCH_OK 0x04000000 /* Mask Length Mismatch Error for Received Completions */
|
|
+#define PCIE_STRFMR_TLP_ECRC_ERR_OK 0x08000000 /* Mask ECRC Error Filtering */
|
|
+#define PCIE_STRFMR_CPL_TLP_ECRC_OK 0x10000000 /* Mask ECRC Error Filtering for Completions */
|
|
+#define PCIE_STRFMR_RX_TLP_MSG_NO_DROP 0x20000000 /* Send Message TLPs */
|
|
+#define PCIE_STRFMR_RX_IO_TRANS_ENABLE 0x40000000 /* Mask Filtering of received I/O Requests */
|
|
+#define PCIE_STRFMR_RX_CFG_TRANS_ENABLE 0x80000000 /* Mask Filtering of Received Configuration Requests */
|
|
+
|
|
+#define PCIE_DEF_SKP_INTERVAL 700 /* 1180 ~1538 , 125MHz * 2, 250MHz * 1 */
|
|
+
|
|
+/* Filter Masker Register 2 */
|
|
+#define PCIE_FMR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x720)
|
|
+#define PCIE_FMR2_VENDOR_MSG0_PASSED_TO_TRGT1 0x00000001 /* Mask RADM Filtering and Error Handling Rules */
|
|
+#define PCIE_FMR2_VENDOR_MSG1_PASSED_TO_TRGT1 0x00000002 /* Mask RADM Filtering and Error Handling Rules */
|
|
+
|
|
+/* Debug Register 0 */
|
|
+#define PCIE_DBR0(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x728)
|
|
+
|
|
+/* Debug Register 1 */
|
|
+#define PCIE_DBR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x72C)
|
|
+
|
|
+/* Transmit Posted FC Credit Status Register */
|
|
+#define PCIE_TPFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x730)
|
|
+#define PCIE_TPFCS_TX_P_DATA_FC_CREDITS 0x00000FFF /* Transmit Posted Data FC Credits */
|
|
+#define PCIE_TPFCS_TX_P_DATA_FC_CREDITS_S 0
|
|
+#define PCIE_TPFCS_TX_P_HDR_FC_CREDITS 0x000FF000 /* Transmit Posted Header FC Credits */
|
|
+#define PCIE_TPFCS_TX_P_HDR_FC_CREDITS_S 12
|
|
+
|
|
+/* Transmit Non-Posted FC Credit Status */
|
|
+#define PCIE_TNPFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x734)
|
|
+#define PCIE_TNPFCS_TX_NP_DATA_FC_CREDITS 0x00000FFF /* Transmit Non-Posted Data FC Credits */
|
|
+#define PCIE_TNPFCS_TX_NP_DATA_FC_CREDITS_S 0
|
|
+#define PCIE_TNPFCS_TX_NP_HDR_FC_CREDITS 0x000FF000 /* Transmit Non-Posted Header FC Credits */
|
|
+#define PCIE_TNPFCS_TX_NP_HDR_FC_CREDITS_S 12
|
|
+
|
|
+/* Transmit Complete FC Credit Status Register */
|
|
+#define PCIE_TCFCS(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x738)
|
|
+#define PCIE_TCFCS_TX_CPL_DATA_FC_CREDITS 0x00000FFF /* Transmit Completion Data FC Credits */
|
|
+#define PCIE_TCFCS_TX_CPL_DATA_FC_CREDITS_S 0
|
|
+#define PCIE_TCFCS_TX_CPL_HDR_FC_CREDITS 0x000FF000 /* Transmit Completion Header FC Credits */
|
|
+#define PCIE_TCFCS_TX_CPL_HDR_FC_CREDITS_S 12
|
|
+
|
|
+/* Queue Status Register */
|
|
+#define PCIE_QSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x73C)
|
|
+#define PCIE_QSR_WAIT_UPDATE_FC_DLL 0x00000001 /* Received TLP FC Credits Not Returned */
|
|
+#define PCIE_QSR_TX_RETRY_BUF_NOT_EMPTY 0x00000002 /* Transmit Retry Buffer Not Empty */
|
|
+#define PCIE_QSR_RX_QUEUE_NOT_EMPTY 0x00000004 /* Received Queue Not Empty */
|
|
+
|
|
+/* VC Transmit Arbitration Register 1 */
|
|
+#define PCIE_VCTAR1(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x740)
|
|
+#define PCIE_VCTAR1_WRR_WEIGHT_VC0 0x000000FF /* WRR Weight for VC0 */
|
|
+#define PCIE_VCTAR1_WRR_WEIGHT_VC1 0x0000FF00 /* WRR Weight for VC1 */
|
|
+#define PCIE_VCTAR1_WRR_WEIGHT_VC2 0x00FF0000 /* WRR Weight for VC2 */
|
|
+#define PCIE_VCTAR1_WRR_WEIGHT_VC3 0xFF000000 /* WRR Weight for VC3 */
|
|
+
|
|
+/* VC Transmit Arbitration Register 2 */
|
|
+#define PCIE_VCTAR2(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x744)
|
|
+#define PCIE_VCTAR2_WRR_WEIGHT_VC4 0x000000FF /* WRR Weight for VC4 */
|
|
+#define PCIE_VCTAR2_WRR_WEIGHT_VC5 0x0000FF00 /* WRR Weight for VC5 */
|
|
+#define PCIE_VCTAR2_WRR_WEIGHT_VC6 0x00FF0000 /* WRR Weight for VC6 */
|
|
+#define PCIE_VCTAR2_WRR_WEIGHT_VC7 0xFF000000 /* WRR Weight for VC7 */
|
|
+
|
|
+/* VC0 Posted Receive Queue Control Register */
|
|
+#define PCIE_VC0_PRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x748)
|
|
+#define PCIE_VC0_PRQCR_P_DATA_CREDITS 0x00000FFF /* VC0 Posted Data Credits */
|
|
+#define PCIE_VC0_PRQCR_P_DATA_CREDITS_S 0
|
|
+#define PCIE_VC0_PRQCR_P_HDR_CREDITS 0x000FF000 /* VC0 Posted Header Credits */
|
|
+#define PCIE_VC0_PRQCR_P_HDR_CREDITS_S 12
|
|
+#define PCIE_VC0_PRQCR_P_TLP_QUEUE_MODE 0x00E00000 /* VC0 Posted TLP Queue Mode */
|
|
+#define PCIE_VC0_PRQCR_P_TLP_QUEUE_MODE_S 20
|
|
+#define PCIE_VC0_PRQCR_TLP_RELAX_ORDER 0x40000000 /* TLP Type Ordering for VC0 */
|
|
+#define PCIE_VC0_PRQCR_VC_STRICT_ORDER 0x80000000 /* VC0 Ordering for Receive Queues */
|
|
+
|
|
+/* VC0 Non-Posted Receive Queue Control */
|
|
+#define PCIE_VC0_NPRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x74C)
|
|
+#define PCIE_VC0_NPRQCR_NP_DATA_CREDITS 0x00000FFF /* VC0 Non-Posted Data Credits */
|
|
+#define PCIE_VC0_NPRQCR_NP_DATA_CREDITS_S 0
|
|
+#define PCIE_VC0_NPRQCR_NP_HDR_CREDITS 0x000FF000 /* VC0 Non-Posted Header Credits */
|
|
+#define PCIE_VC0_NPRQCR_NP_HDR_CREDITS_S 12
|
|
+#define PCIE_VC0_NPRQCR_NP_TLP_QUEUE_MODE 0x00E00000 /* VC0 Non-Posted TLP Queue Mode */
|
|
+#define PCIE_VC0_NPRQCR_NP_TLP_QUEUE_MODE_S 20
|
|
+
|
|
+/* VC0 Completion Receive Queue Control */
|
|
+#define PCIE_VC0_CRQCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x750)
|
|
+#define PCIE_VC0_CRQCR_CPL_DATA_CREDITS 0x00000FFF /* VC0 Completion TLP Queue Mode */
|
|
+#define PCIE_VC0_CRQCR_CPL_DATA_CREDITS_S 0
|
|
+#define PCIE_VC0_CRQCR_CPL_HDR_CREDITS 0x000FF000 /* VC0 Completion Header Credits */
|
|
+#define PCIE_VC0_CRQCR_CPL_HDR_CREDITS_S 12
|
|
+#define PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE 0x00E00000 /* VC0 Completion Data Credits */
|
|
+#define PCIE_VC0_CRQCR_CPL_TLP_QUEUE_MODE_S 21
|
|
+
|
|
+/* Applicable to the above three registers */
|
|
+enum {
|
|
+ PCIE_VC0_TLP_QUEUE_MODE_STORE_FORWARD = 1,
|
|
+ PCIE_VC0_TLP_QUEUE_MODE_CUT_THROUGH = 2,
|
|
+ PCIE_VC0_TLP_QUEUE_MODE_BYPASS = 4,
|
|
+};
|
|
+
|
|
+/* VC0 Posted Buffer Depth Register */
|
|
+#define PCIE_VC0_PBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7A8)
|
|
+#define PCIE_VC0_PBD_P_DATA_QUEUE_ENTRIES 0x00003FFF /* VC0 Posted Data Queue Depth */
|
|
+#define PCIE_VC0_PBD_P_DATA_QUEUE_ENTRIES_S 0
|
|
+#define PCIE_VC0_PBD_P_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Posted Header Queue Depth */
|
|
+#define PCIE_VC0_PBD_P_HDR_QUEUE_ENTRIES_S 16
|
|
+
|
|
+/* VC0 Non-Posted Buffer Depth Register */
|
|
+#define PCIE_VC0_NPBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7AC)
|
|
+#define PCIE_VC0_NPBD_NP_DATA_QUEUE_ENTRIES 0x00003FFF /* VC0 Non-Posted Data Queue Depth */
|
|
+#define PCIE_VC0_NPBD_NP_DATA_QUEUE_ENTRIES_S 0
|
|
+#define PCIE_VC0_NPBD_NP_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Non-Posted Header Queue Depth */
|
|
+#define PCIE_VC0_NPBD_NP_HDR_QUEUE_ENTRIES_S 16
|
|
+
|
|
+/* VC0 Completion Buffer Depth Register */
|
|
+#define PCIE_VC0_CBD(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x7B0)
|
|
+#define PCIE_VC0_CBD_CPL_DATA_QUEUE_ENTRIES 0x00003FFF /* C0 Completion Data Queue Depth */
|
|
+#define PCIE_VC0_CBD_CPL_DATA_QUEUE_ENTRIES_S 0
|
|
+#define PCIE_VC0_CBD_CPL_HDR_QUEUE_ENTRIES 0x03FF0000 /* VC0 Completion Header Queue Depth */
|
|
+#define PCIE_VC0_CBD_CPL_HDR_QUEUE_ENTRIES_S 16
|
|
+
|
|
+/* PHY Status Register, all zeros in VR9 */
|
|
+#define PCIE_PHYSR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x810)
|
|
+
|
|
+/* PHY Control Register, all zeros in VR9 */
|
|
+#define PCIE_PHYCR(X) (volatile u32*)(PCIE_RC_PORT_TO_BASE(X) + 0x814)
|
|
+
|
|
+/*
|
|
+ * PCIe PDI PHY register definition, suppose all the following
|
|
+ * stuff is confidential.
|
|
+ * XXX, detailed bit definition
|
|
+ */
|
|
+#define PCIE_PHY_PLL_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x22 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x23 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x24 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL4(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x25 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL5(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x26 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL6(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x27 << 1))
|
|
+#define PCIE_PHY_PLL_CTRL7(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x28 << 1))
|
|
+#define PCIE_PHY_PLL_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x29 << 1))
|
|
+#define PCIE_PHY_PLL_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2A << 1))
|
|
+#define PCIE_PHY_PLL_A_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2B << 1))
|
|
+#define PCIE_PHY_PLL_STATUS(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x2C << 1))
|
|
+
|
|
+#define PCIE_PHY_TX1_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x30 << 1))
|
|
+#define PCIE_PHY_TX1_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x31 << 1))
|
|
+#define PCIE_PHY_TX1_CTRL3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x32 << 1))
|
|
+#define PCIE_PHY_TX1_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x33 << 1))
|
|
+#define PCIE_PHY_TX1_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x34 << 1))
|
|
+#define PCIE_PHY_TX1_MOD1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x35 << 1))
|
|
+#define PCIE_PHY_TX1_MOD2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x36 << 1))
|
|
+#define PCIE_PHY_TX1_MOD3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x37 << 1))
|
|
+
|
|
+#define PCIE_PHY_TX2_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x38 << 1))
|
|
+#define PCIE_PHY_TX2_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x39 << 1))
|
|
+#define PCIE_PHY_TX2_A_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3B << 1))
|
|
+#define PCIE_PHY_TX2_A_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3C << 1))
|
|
+#define PCIE_PHY_TX2_MOD1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3D << 1))
|
|
+#define PCIE_PHY_TX2_MOD2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3E << 1))
|
|
+#define PCIE_PHY_TX2_MOD3(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x3F << 1))
|
|
+
|
|
+#define PCIE_PHY_RX1_CTRL1(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x50 << 1))
|
|
+#define PCIE_PHY_RX1_CTRL2(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x51 << 1))
|
|
+#define PCIE_PHY_RX1_CDR(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x52 << 1))
|
|
+#define PCIE_PHY_RX1_EI(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x53 << 1))
|
|
+#define PCIE_PHY_RX1_A_CTRL(X) (PCIE_PHY_PORT_TO_BASE(X) + (0x55 << 1))
|
|
+
|
|
+/* Interrupt related stuff */
|
|
+#define PCIE_LEGACY_DISABLE 0
|
|
+#define PCIE_LEGACY_INTA 1
|
|
+#define PCIE_LEGACY_INTB 2
|
|
+#define PCIE_LEGACY_INTC 3
|
|
+#define PCIE_LEGACY_INTD 4
|
|
+#define PCIE_LEGACY_INT_MAX PCIE_LEGACY_INTD
|
|
+
|
|
+#define PCIE_IRQ_LOCK(lock) do { \
|
|
+ unsigned long flags; \
|
|
+ spin_lock_irqsave(&(lock), flags);
|
|
+#define PCIE_IRQ_UNLOCK(lock) \
|
|
+ spin_unlock_irqrestore(&(lock), flags); \
|
|
+} while (0)
|
|
+
|
|
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
|
|
+#define IRQF_SHARED SA_SHIRQ
|
|
+#endif
|
|
+
|
|
+#define PCIE_MSG_MSI 0x00000001
|
|
+#define PCIE_MSG_ISR 0x00000002
|
|
+#define PCIE_MSG_FIXUP 0x00000004
|
|
+#define PCIE_MSG_READ_CFG 0x00000008
|
|
+#define PCIE_MSG_WRITE_CFG 0x00000010
|
|
+#define PCIE_MSG_CFG (PCIE_MSG_READ_CFG | PCIE_MSG_WRITE_CFG)
|
|
+#define PCIE_MSG_REG 0x00000020
|
|
+#define PCIE_MSG_INIT 0x00000040
|
|
+#define PCIE_MSG_ERR 0x00000080
|
|
+#define PCIE_MSG_PHY 0x00000100
|
|
+#define PCIE_MSG_ANY 0x000001ff
|
|
+
|
|
+#define IFX_PCIE_PORT0 0
|
|
+#define IFX_PCIE_PORT1 1
|
|
+
|
|
+#ifdef CONFIG_IFX_PCIE_2ND_CORE
|
|
+#define IFX_PCIE_CORE_NR 2
|
|
+#else
|
|
+#define IFX_PCIE_CORE_NR 1
|
|
+#endif
|
|
+
|
|
+//#define IFX_PCIE_ERROR_INT
|
|
+
|
|
+//#define IFX_PCIE_DBG
|
|
+
|
|
+#if defined(IFX_PCIE_DBG)
|
|
+#define IFX_PCIE_PRINT(_m, _fmt, args...) do { \
|
|
+ if (g_pcie_debug_flag & (_m)) { \
|
|
+ ifx_pcie_debug((_fmt), ##args); \
|
|
+ } \
|
|
+} while (0)
|
|
+
|
|
+#define INLINE
|
|
+#else
|
|
+#define IFX_PCIE_PRINT(_m, _fmt, args...) \
|
|
+ do {} while(0)
|
|
+#define INLINE inline
|
|
+#endif
|
|
+
|
|
+struct ifx_pci_controller {
|
|
+ struct pci_controller pcic;
|
|
+
|
|
+ /* RC specific, per host bus information */
|
|
+ u32 port; /* Port index, 0 -- 1st core, 1 -- 2nd core */
|
|
+};
|
|
+
|
|
+typedef struct ifx_pcie_ir_irq {
|
|
+ const unsigned int irq;
|
|
+ const char name[16];
|
|
+}ifx_pcie_ir_irq_t;
|
|
+
|
|
+typedef struct ifx_pcie_legacy_irq{
|
|
+ const u32 irq_bit;
|
|
+ const int irq;
|
|
+}ifx_pcie_legacy_irq_t;
|
|
+
|
|
+typedef struct ifx_pcie_irq {
|
|
+ ifx_pcie_ir_irq_t ir_irq;
|
|
+ ifx_pcie_legacy_irq_t legacy_irq[PCIE_LEGACY_INT_MAX];
|
|
+}ifx_pcie_irq_t;
|
|
+
|
|
+extern u32 g_pcie_debug_flag;
|
|
+extern void ifx_pcie_debug(const char *fmt, ...);
|
|
+extern void pcie_phy_clock_mode_setup(int pcie_port);
|
|
+extern void pcie_msi_pic_init(int pcie_port);
|
|
+extern u32 ifx_pcie_bus_enum_read_hack(int where, u32 value);
|
|
+extern u32 ifx_pcie_bus_enum_write_hack(int where, u32 value);
|
|
+
|
|
+
|
|
+#include <linux/types.h>
|
|
+#include <linux/delay.h>
|
|
+#include <linux/gpio.h>
|
|
+#include <linux/clk.h>
|
|
+
|
|
+#include <lantiq_soc.h>
|
|
+
|
|
+#define IFX_PCIE_GPIO_RESET 38
|
|
+#define IFX_REG_R32 ltq_r32
|
|
+#define IFX_REG_W32 ltq_w32
|
|
+#define CONFIG_IFX_PCIE_HW_SWAP
|
|
+#define IFX_RCU_AHB_ENDIAN ((volatile u32*)(IFX_RCU + 0x004C))
|
|
+#define IFX_RCU_RST_REQ ((volatile u32*)(IFX_RCU + 0x0010))
|
|
+#define IFX_RCU_AHB_BE_PCIE_PDI 0x00000080 /* Configure PCIE PDI module in big endian*/
|
|
+
|
|
+#define IFX_RCU (KSEG1 | 0x1F203000)
|
|
+#define IFX_RCU_AHB_BE_PCIE_M 0x00000001 /* Configure AHB master port that connects to PCIe RC in big endian */
|
|
+#define IFX_RCU_AHB_BE_PCIE_S 0x00000010 /* Configure AHB slave port that connects to PCIe RC in little endian */
|
|
+#define IFX_RCU_AHB_BE_XBAR_M 0x00000002 /* Configure AHB master port that connects to XBAR in big endian */
|
|
+#define CONFIG_IFX_PCIE_PHY_36MHZ_MODE
|
|
+
|
|
+#define IFX_PMU1_MODULE_PCIE_PHY (0)
|
|
+#define IFX_PMU1_MODULE_PCIE_CTRL (1)
|
|
+#define IFX_PMU1_MODULE_PDI (4)
|
|
+#define IFX_PMU1_MODULE_MSI (5)
|
|
+
|
|
+#define IFX_PMU_MODULE_PCIE_L0_CLK (31)
|
|
+
|
|
+
|
|
+static inline void pcie_ep_gpio_rst_init(int pcie_port)
|
|
+{
|
|
+}
|
|
+
|
|
+static inline void pcie_ahb_pmu_setup(void)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ clk = clk_get_sys("ltq_pcie", "ahb");
|
|
+ clk_enable(clk);
|
|
+ //ltq_pmu_enable(PMU_AHBM | PMU_AHBS);
|
|
+}
|
|
+
|
|
+static inline void pcie_rcu_endian_setup(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN);
|
|
+#ifdef CONFIG_IFX_PCIE_HW_SWAP
|
|
+ reg |= IFX_RCU_AHB_BE_PCIE_M;
|
|
+ reg |= IFX_RCU_AHB_BE_PCIE_S;
|
|
+ reg &= ~IFX_RCU_AHB_BE_XBAR_M;
|
|
+#else
|
|
+ reg |= IFX_RCU_AHB_BE_PCIE_M;
|
|
+ reg &= ~IFX_RCU_AHB_BE_PCIE_S;
|
|
+ reg &= ~IFX_RCU_AHB_BE_XBAR_M;
|
|
+#endif /* CONFIG_IFX_PCIE_HW_SWAP */
|
|
+ IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN);
|
|
+ IFX_PCIE_PRINT(PCIE_MSG_REG, "%s IFX_RCU_AHB_ENDIAN: 0x%08x\n", __func__, IFX_REG_R32(IFX_RCU_AHB_ENDIAN));
|
|
+}
|
|
+
|
|
+static inline void pcie_phy_pmu_enable(int pcie_port)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ clk = clk_get_sys("ltq_pcie", "phy");
|
|
+ clk_enable(clk);
|
|
+ //ltq_pmu1_enable(1<<IFX_PMU1_MODULE_PCIE_PHY);
|
|
+}
|
|
+
|
|
+static inline void pcie_phy_pmu_disable(int pcie_port)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ clk = clk_get_sys("ltq_pcie", "phy");
|
|
+ clk_disable(clk);
|
|
+ //ltq_pmu1_disable(1<<IFX_PMU1_MODULE_PCIE_PHY);
|
|
+}
|
|
+
|
|
+static inline void pcie_pdi_big_endian(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ /* SRAM2PDI endianness control. */
|
|
+ reg = IFX_REG_R32(IFX_RCU_AHB_ENDIAN);
|
|
+ /* Config AHB->PCIe and PDI endianness */
|
|
+ reg |= IFX_RCU_AHB_BE_PCIE_PDI;
|
|
+ IFX_REG_W32(reg, IFX_RCU_AHB_ENDIAN);
|
|
+}
|
|
+
|
|
+static inline void pcie_pdi_pmu_enable(int pcie_port)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ clk = clk_get_sys("ltq_pcie", "pdi");
|
|
+ clk_enable(clk);
|
|
+ //ltq_pmu1_enable(1<<IFX_PMU1_MODULE_PDI);
|
|
+}
|
|
+
|
|
+static inline void pcie_core_rst_assert(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ reg = IFX_REG_R32(IFX_RCU_RST_REQ);
|
|
+
|
|
+ /* Reset PCIe PHY & Core, bit 22, bit 26 may be affected if write it directly */
|
|
+ reg |= 0x00400000;
|
|
+ IFX_REG_W32(reg, IFX_RCU_RST_REQ);
|
|
+}
|
|
+
|
|
+static inline void pcie_core_rst_deassert(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ /* Make sure one micro-second delay */
|
|
+ udelay(1);
|
|
+
|
|
+ /* Reset PCIe PHY & Core, bit 22 */
|
|
+ reg = IFX_REG_R32(IFX_RCU_RST_REQ);
|
|
+ reg &= ~0x00400000;
|
|
+ IFX_REG_W32(reg, IFX_RCU_RST_REQ);
|
|
+}
|
|
+
|
|
+static inline void pcie_phy_rst_assert(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ reg = IFX_REG_R32(IFX_RCU_RST_REQ);
|
|
+ reg |= 0x00001000; /* Bit 12 */
|
|
+ IFX_REG_W32(reg, IFX_RCU_RST_REQ);
|
|
+}
|
|
+
|
|
+static inline void pcie_phy_rst_deassert(int pcie_port)
|
|
+{
|
|
+ u32 reg;
|
|
+
|
|
+ /* Make sure one micro-second delay */
|
|
+ udelay(1);
|
|
+
|
|
+ reg = IFX_REG_R32(IFX_RCU_RST_REQ);
|
|
+ reg &= ~0x00001000; /* Bit 12 */
|
|
+ IFX_REG_W32(reg, IFX_RCU_RST_REQ);
|
|
+}
|
|
+
|
|
+static inline void pcie_device_rst_assert(int pcie_port)
|
|
+{
|
|
+ gpio_set_value(IFX_PCIE_GPIO_RESET, 0);
|
|
+ // ifx_gpio_output_clear(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id);
|
|
+}
|
|
+
|
|
+static inline void pcie_device_rst_deassert(int pcie_port)
|
|
+{
|
|
+ mdelay(100);
|
|
+ gpio_set_value(IFX_PCIE_GPIO_RESET, 1);
|
|
+// ifx_gpio_output_set(IFX_PCIE_GPIO_RESET, ifx_pcie_gpio_module_id);
|
|
+}
|
|
+
|
|
+static inline void pcie_core_pmu_setup(int pcie_port)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ clk = clk_get_sys("ltq_pcie", "ctl");
|
|
+ clk_enable(clk);
|
|
+ clk = clk_get_sys("ltq_pcie", "bus");
|
|
+ clk_enable(clk);
|
|
+
|
|
+ //ltq_pmu1_enable(1 << IFX_PMU1_MODULE_PCIE_CTRL);
|
|
+ //ltq_pmu_enable(1 << IFX_PMU_MODULE_PCIE_L0_CLK);
|
|
+}
|
|
+
|
|
+static inline void pcie_msi_init(int pcie_port)
|
|
+{
|
|
+ struct clk *clk;
|
|
+ pcie_msi_pic_init(pcie_port);
|
|
+ clk = clk_get_sys("ltq_pcie", "msi");
|
|
+ clk_enable(clk);
|
|
+ //ltq_pmu1_enable(1 << IFX_PMU1_MODULE_MSI);
|
|
+}
|
|
+
|
|
+static inline u32
|
|
+ifx_pcie_bus_nr_deduct(u32 bus_number, int pcie_port)
|
|
+{
|
|
+ u32 tbus_number = bus_number;
|
|
+
|
|
+#ifdef CONFIG_IFX_PCI
|
|
+ if (pcibios_host_nr() > 1) {
|
|
+ tbus_number -= pcibios_1st_host_bus_nr();
|
|
+ }
|
|
+#endif /* CONFIG_IFX_PCI */
|
|
+ return tbus_number;
|
|
+}
|
|
+
|
|
+static inline u32
|
|
+ifx_pcie_bus_enum_hack(struct pci_bus *bus, u32 devfn, int where, u32 value, int pcie_port, int read)
|
|
+{
|
|
+ struct pci_dev *pdev;
|
|
+ u32 tvalue = value;
|
|
+
|
|
+ /* Sanity check */
|
|
+ pdev = pci_get_slot(bus, devfn);
|
|
+ if (pdev == NULL) {
|
|
+ return tvalue;
|
|
+ }
|
|
+
|
|
+ /* Only care about PCI bridge */
|
|
+ if (pdev->hdr_type != PCI_HEADER_TYPE_BRIDGE) {
|
|
+ return tvalue;
|
|
+ }
|
|
+
|
|
+ if (read) { /* Read hack */
|
|
+ #ifdef CONFIG_IFX_PCI
|
|
+ if (pcibios_host_nr() > 1) {
|
|
+ tvalue = ifx_pcie_bus_enum_read_hack(where, tvalue);
|
|
+ }
|
|
+ #endif /* CONFIG_IFX_PCI */
|
|
+ }
|
|
+ else { /* Write hack */
|
|
+ #ifdef CONFIG_IFX_PCI
|
|
+ if (pcibios_host_nr() > 1) {
|
|
+ tvalue = ifx_pcie_bus_enum_write_hack(where, tvalue);
|
|
+ }
|
|
+ #endif
|
|
+ }
|
|
+ return tvalue;
|
|
+}
|
|
+
|
|
+#endif /* IFXMIPS_PCIE_VR9_H */
|
|
+
|