Openwrt/target/linux/ath79/patches-4.19/470-MIPS-ath79-swizzle-pci-address-for-ar71xx.patch
Chuanhong Guo 3771176c9e ath79: add support for linux 4.19
The following patches are dropped because they are merged upstream:
-0001-tty-serial-drop-QCA-pecific-SoC-symbols.patch
-0006-usb-drop-deprecated-symbols.patch
-0009-MIPS-ath79-add-lots-of-missing-registers.patch
-0010-MIPS-ath79-add-support-for-QCA953x-QCA956x-TP9343.patch
-0014-MIPS-ath79-finetune-cpu-overrides.patch
-0015-MIPS-ath79-enable-uart-during-early_prink.patch
-0016-MIPS-ath79-get-PCIe-controller-out-of-reset.patch

This patch is dropped due to the introduction of spi-mem framework:
-461-spi-ath79-add-fast-flash-read.patch

Thank to Michael Marley @mamarley for his work on this patch:
-910-unaligned_access_hacks.patch

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
[synchronized kernel config with make kernel_oldconfig]
Signed-off-by: Petr Štetiar <ynezz@true.cz>
2019-03-24 01:44:25 +01:00

99 lines
2.8 KiB
Diff

--- /dev/null
+++ b/arch/mips/include/asm/mach-ath79/mangle-port.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ * This file was derived from: inlude/asm-mips/mach-generic/mangle-port.h
+ * Copyright (C) 2003, 2004 Ralf Baechle
+ *
+ * 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.
+ */
+
+#ifndef __ASM_MACH_ATH79_MANGLE_PORT_H
+#define __ASM_MACH_ATH79_MANGLE_PORT_H
+
+#ifdef CONFIG_PCI_AR71XX
+extern unsigned long (ath79_pci_swizzle_b)(unsigned long port);
+extern unsigned long (ath79_pci_swizzle_w)(unsigned long port);
+#else
+#define ath79_pci_swizzle_b(port) (port)
+#define ath79_pci_swizzle_w(port) (port)
+#endif
+
+#define __swizzle_addr_b(port) ath79_pci_swizzle_b(port)
+#define __swizzle_addr_w(port) ath79_pci_swizzle_w(port)
+#define __swizzle_addr_l(port) (port)
+#define __swizzle_addr_q(port) (port)
+
+# define ioswabb(a, x) (x)
+# define __mem_ioswabb(a, x) (x)
+# define ioswabw(a, x) (x)
+# define __mem_ioswabw(a, x) cpu_to_le16(x)
+# define ioswabl(a, x) (x)
+# define __mem_ioswabl(a, x) cpu_to_le32(x)
+# define ioswabq(a, x) (x)
+# define __mem_ioswabq(a, x) cpu_to_le64(x)
+
+#endif /* __ASM_MACH_ATH79_MANGLE_PORT_H */
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -71,6 +71,45 @@ static const u32 ar71xx_pci_read_mask[8]
0, 0xff, 0xffff, 0, 0xffffffff, 0, 0, 0
};
+static unsigned long (*__ath79_pci_swizzle_b)(unsigned long port);
+static unsigned long (*__ath79_pci_swizzle_w)(unsigned long port);
+
+static inline bool ar71xx_is_pci_addr(unsigned long port)
+{
+ unsigned long phys = CPHYSADDR(port);
+
+ return (phys >= AR71XX_PCI_MEM_BASE &&
+ phys < AR71XX_PCI_MEM_BASE + AR71XX_PCI_MEM_SIZE);
+}
+
+static unsigned long ar71xx_pci_swizzle_b(unsigned long port)
+{
+ return ar71xx_is_pci_addr(port) ? port ^ 3 : port;
+}
+
+static unsigned long ar71xx_pci_swizzle_w(unsigned long port)
+{
+ return ar71xx_is_pci_addr(port) ? port ^ 2 : port;
+}
+
+unsigned long ath79_pci_swizzle_b(unsigned long port)
+{
+ if (__ath79_pci_swizzle_b)
+ return __ath79_pci_swizzle_b(port);
+
+ return port;
+}
+EXPORT_SYMBOL(ath79_pci_swizzle_b);
+
+unsigned long ath79_pci_swizzle_w(unsigned long port)
+{
+ if (__ath79_pci_swizzle_w)
+ return __ath79_pci_swizzle_w(port);
+
+ return port;
+}
+EXPORT_SYMBOL(ath79_pci_swizzle_w);
+
static inline u32 ar71xx_pci_get_ble(int where, int size, int local)
{
u32 t;
@@ -279,6 +318,9 @@ static int ar71xx_pci_probe(struct platf
register_pci_controller(&apc->pci_ctrl);
+ __ath79_pci_swizzle_b = ar71xx_pci_swizzle_b;
+ __ath79_pci_swizzle_w = ar71xx_pci_swizzle_w;
+
return 0;
}