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Openwrt/target/linux/brcm2708/patches-4.1/0146-bcm2708-vcio-Remove-module.patch
John Crispin d4b8d51580 brcm2708: update 4.1 patches 
As usual, this patches were taken (and rebased) from
https://github.com/raspberrypi/linux/commits/rpi-4.1.y

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

SVN-Revision: 47922
2015-12-17 09:29:22 +00:00

267 lines
9.1 KiB
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From 481d4ab30960bff9d25a2b9982bb8eaed0ffd8b4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Noralf=20Tr=C3=B8nnes?= <noralf@tronnes.org>
Date: Fri, 24 Jul 2015 19:34:31 +0200
Subject: [PATCH 146/222] bcm2708-vcio: Remove module
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
All drivers have been converted to the new firmware API, so this
module is not needed anymore.
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
---
drivers/mailbox/Kconfig | 6 --
drivers/mailbox/Makefile | 2 -
drivers/mailbox/bcm2708-vcio.c | 86 -----------------
include/linux/platform_data/mailbox-bcm2708.h | 127 --------------------------
4 files changed, 221 deletions(-)
delete mode 100644 drivers/mailbox/bcm2708-vcio.c
delete mode 100644 include/linux/platform_data/mailbox-bcm2708.h
--- a/drivers/mailbox/Kconfig
+++ b/drivers/mailbox/Kconfig
@@ -7,12 +7,6 @@ menuconfig MAILBOX
if MAILBOX
-config BCM2708_MBOX
- bool "Broadcom BCM2708 Mailbox (vcio)"
- depends on BCM2835_MBOX
- help
- Broadcom BCM2708 Mailbox (vcio)
-
config ARM_MHU
tristate "ARM MHU Mailbox"
depends on ARM_AMBA
--- a/drivers/mailbox/Makefile
+++ b/drivers/mailbox/Makefile
@@ -2,8 +2,6 @@
obj-$(CONFIG_MAILBOX) += mailbox.o
-obj-$(CONFIG_BCM2708_MBOX) += bcm2708-vcio.o
-
obj-$(CONFIG_ARM_MHU) += arm_mhu.o
obj-$(CONFIG_PL320_MBOX) += pl320-ipc.o
--- a/drivers/mailbox/bcm2708-vcio.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Copyright (C) 2010 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This device provides a shared mechanism for writing to the mailboxes,
- * semaphores, doorbells etc. that are shared between the ARM and the
- * VideoCore processor
- */
-
-#include <linux/dma-mapping.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/platform_data/mailbox-bcm2708.h>
-#include <linux/uaccess.h>
-#include <soc/bcm2835/raspberrypi-firmware.h>
-
-#define DRIVER_NAME "bcm2708_vcio"
-
-extern int bcm_mailbox_write(unsigned chan, uint32_t data28)
-{
- struct rpi_firmware *fw = rpi_firmware_get(NULL);
-
- if (!fw)
- return -ENODEV;
-
- return rpi_firmware_transaction(fw, chan, data28);
-}
-EXPORT_SYMBOL_GPL(bcm_mailbox_write);
-
-extern int bcm_mailbox_read(unsigned chan, uint32_t *data28)
-{
- struct rpi_firmware *fw = rpi_firmware_get(NULL);
-
- if (!fw)
- return -ENODEV;
-
- *data28 = rpi_firmware_transaction_received(fw);
-
- return 0;
-}
-EXPORT_SYMBOL_GPL(bcm_mailbox_read);
-
-static DEFINE_MUTEX(mailbox_lock);
-extern int bcm_mailbox_property(void *data, int size)
-{
- uint32_t success;
- dma_addr_t mem_bus; /* the memory address accessed from videocore */
- void *mem_kern; /* the memory address accessed from driver */
- int s = 0;
-
- mutex_lock(&mailbox_lock);
- /* allocate some memory for the messages communicating with GPU */
- mem_kern = dma_alloc_coherent(NULL, PAGE_ALIGN(size), &mem_bus,
- GFP_KERNEL);
- if (mem_kern) {
- /* create the message */
- memcpy(mem_kern, data, size);
-
- /* send the message */
- wmb();
- s = bcm_mailbox_write(MBOX_CHAN_PROPERTY, (uint32_t)mem_bus);
- if (s == 0)
- s = bcm_mailbox_read(MBOX_CHAN_PROPERTY, &success);
- if (s == 0) {
- /* copy the response */
- rmb();
- memcpy(data, mem_kern, size);
- }
- dma_free_coherent(NULL, PAGE_ALIGN(size), mem_kern, mem_bus);
- } else {
- s = -ENOMEM;
- }
- if (s != 0)
- pr_err(DRIVER_NAME ": %s failed (%d)\n", __func__, s);
-
- mutex_unlock(&mailbox_lock);
- return s;
-}
-EXPORT_SYMBOL_GPL(bcm_mailbox_property);
-
-MODULE_AUTHOR("Gray Girling");
-MODULE_DESCRIPTION("ARM I/O to VideoCore processor");
-MODULE_LICENSE("GPL");
--- a/include/linux/platform_data/mailbox-bcm2708.h
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * Copyright (C) 2010 Broadcom
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#ifndef _PLAT_MAILBOX_BCM2708_H
-#define _PLAT_MAILBOX_BCM2708_H
-
-/* Routines to handle I/O via the VideoCore "ARM control" registers
- * (semaphores, doorbells, mailboxes)
- */
-
-/* Constants shared with the ARM identifying separate mailbox channels */
-#define MBOX_CHAN_POWER 0 /* for use by the power management interface */
-#define MBOX_CHAN_FB 1 /* for use by the frame buffer */
-#define MBOX_CHAN_VCHIQ 3 /* for use by the VCHIQ interface */
-#define MBOX_CHAN_PROPERTY 8 /* for use by the property channel */
-#define MBOX_CHAN_COUNT 9
-
-enum {
- VCMSG_PROCESS_REQUEST = 0x00000000
-};
-
-enum {
- VCMSG_REQUEST_SUCCESSFUL = 0x80000000,
- VCMSG_REQUEST_FAILED = 0x80000001
-};
-
-/* Mailbox property tags */
-enum {
- VCMSG_PROPERTY_END = 0x00000000,
- VCMSG_GET_FIRMWARE_REVISION = 0x00000001,
- VCMSG_GET_BOARD_MODEL = 0x00010001,
- VCMSG_GET_BOARD_REVISION = 0x00010002,
- VCMSG_GET_BOARD_MAC_ADDRESS = 0x00010003,
- VCMSG_GET_BOARD_SERIAL = 0x00010004,
- VCMSG_GET_ARM_MEMORY = 0x00010005,
- VCMSG_GET_VC_MEMORY = 0x00010006,
- VCMSG_GET_CLOCKS = 0x00010007,
- VCMSG_GET_COMMAND_LINE = 0x00050001,
- VCMSG_GET_DMA_CHANNELS = 0x00060001,
- VCMSG_GET_POWER_STATE = 0x00020001,
- VCMSG_GET_TIMING = 0x00020002,
- VCMSG_SET_POWER_STATE = 0x00028001,
- VCMSG_GET_CLOCK_STATE = 0x00030001,
- VCMSG_SET_CLOCK_STATE = 0x00038001,
- VCMSG_GET_CLOCK_RATE = 0x00030002,
- VCMSG_SET_CLOCK_RATE = 0x00038002,
- VCMSG_GET_VOLTAGE = 0x00030003,
- VCMSG_SET_VOLTAGE = 0x00038003,
- VCMSG_GET_MAX_CLOCK = 0x00030004,
- VCMSG_GET_MAX_VOLTAGE = 0x00030005,
- VCMSG_GET_TEMPERATURE = 0x00030006,
- VCMSG_GET_MIN_CLOCK = 0x00030007,
- VCMSG_GET_MIN_VOLTAGE = 0x00030008,
- VCMSG_GET_TURBO = 0x00030009,
- VCMSG_GET_MAX_TEMPERATURE = 0x0003000a,
- VCMSG_GET_STC = 0x0003000b,
- VCMSG_SET_TURBO = 0x00038009,
- VCMSG_SET_ALLOCATE_MEM = 0x0003000c,
- VCMSG_SET_LOCK_MEM = 0x0003000d,
- VCMSG_SET_UNLOCK_MEM = 0x0003000e,
- VCMSG_SET_RELEASE_MEM = 0x0003000f,
- VCMSG_SET_EXECUTE_CODE = 0x00030010,
- VCMSG_SET_EXECUTE_QPU = 0x00030011,
- VCMSG_SET_ENABLE_QPU = 0x00030012,
- VCMSG_GET_RESOURCE_HANDLE = 0x00030014,
- VCMSG_GET_EDID_BLOCK = 0x00030020,
- VCMSG_GET_CUSTOMER_OTP = 0x00030021,
- VCMSG_SET_CUSTOMER_OTP = 0x00038021,
- VCMSG_SET_ALLOCATE_BUFFER = 0x00040001,
- VCMSG_SET_RELEASE_BUFFER = 0x00048001,
- VCMSG_SET_BLANK_SCREEN = 0x00040002,
- VCMSG_TST_BLANK_SCREEN = 0x00044002,
- VCMSG_GET_PHYSICAL_WIDTH_HEIGHT = 0x00040003,
- VCMSG_TST_PHYSICAL_WIDTH_HEIGHT = 0x00044003,
- VCMSG_SET_PHYSICAL_WIDTH_HEIGHT = 0x00048003,
- VCMSG_GET_VIRTUAL_WIDTH_HEIGHT = 0x00040004,
- VCMSG_TST_VIRTUAL_WIDTH_HEIGHT = 0x00044004,
- VCMSG_SET_VIRTUAL_WIDTH_HEIGHT = 0x00048004,
- VCMSG_GET_DEPTH = 0x00040005,
- VCMSG_TST_DEPTH = 0x00044005,
- VCMSG_SET_DEPTH = 0x00048005,
- VCMSG_GET_PIXEL_ORDER = 0x00040006,
- VCMSG_TST_PIXEL_ORDER = 0x00044006,
- VCMSG_SET_PIXEL_ORDER = 0x00048006,
- VCMSG_GET_ALPHA_MODE = 0x00040007,
- VCMSG_TST_ALPHA_MODE = 0x00044007,
- VCMSG_SET_ALPHA_MODE = 0x00048007,
- VCMSG_GET_PITCH = 0x00040008,
- VCMSG_TST_PITCH = 0x00044008,
- VCMSG_SET_PITCH = 0x00048008,
- VCMSG_GET_VIRTUAL_OFFSET = 0x00040009,
- VCMSG_TST_VIRTUAL_OFFSET = 0x00044009,
- VCMSG_SET_VIRTUAL_OFFSET = 0x00048009,
- VCMSG_GET_OVERSCAN = 0x0004000a,
- VCMSG_TST_OVERSCAN = 0x0004400a,
- VCMSG_SET_OVERSCAN = 0x0004800a,
- VCMSG_GET_PALETTE = 0x0004000b,
- VCMSG_TST_PALETTE = 0x0004400b,
- VCMSG_SET_PALETTE = 0x0004800b,
- VCMSG_GET_LAYER = 0x0004000c,
- VCMSG_TST_LAYER = 0x0004400c,
- VCMSG_SET_LAYER = 0x0004800c,
- VCMSG_GET_TRANSFORM = 0x0004000d,
- VCMSG_TST_TRANSFORM = 0x0004400d,
- VCMSG_SET_TRANSFORM = 0x0004800d,
- VCMSG_TST_VSYNC = 0x0004400e,
- VCMSG_SET_VSYNC = 0x0004800e,
- VCMSG_GET_TOUCHBUF = 0x0004000f,
- VCMSG_SET_CURSOR_INFO = 0x00008010,
- VCMSG_SET_CURSOR_STATE = 0x00008011,
-};
-
-int bcm_mailbox_read(unsigned chan, uint32_t *data28);
-int bcm_mailbox_write(unsigned chan, uint32_t data28);
-int bcm_mailbox_property(void *data, int size);
-
-#endif
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