diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 16:56:29 +0200 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 16:56:29 +0200 |
commit | 19ec6caca2da706f11646249ba280177fec359fa (patch) | |
tree | 6064421bc4924e7debdc8576a187cbdec4b8c352 /arch/arm/mach-shark | |
parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) | |
parent | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (diff) | |
download | linux-19ec6caca2da706f11646249ba280177fec359fa.tar.gz |
Merge branch 'cleanup/io-pci' into next/cleanups
From Rob Herring <robherring2@gmail.com>:
This is the 2nd part of mach/io.h removals. This series removes io.h on
platforms with PCI by creating a fixed virtual I/O mapping and a common
__io() macro.
This version has changed a bit to accommodate Tegra converting its PCIe
host to a platform driver. Now the virtual space is only reserved during
early boot before .map_io() is called. The mapping is not created until
calling pci_ioremap_io which can be done at any point after vmalloc is
initialized.
I've gone back to fixed 64K windows for each PCI bus. This allows
removing all the i/o resource setup from the individually platforms and
placing it within the common ARM PCI code.
I've only tested versatilepb under qemu (with the model hacked up to
actually enable i/o space), so any testing is appreciated. iop3xx and
mv78xx0 have some risk of breaking as the PCI bus addresses are moved
to 0 from matching the cpu host bus addesss.
* cleanup/io-pci:
ARM: iop3xx: use fixed PCI i/o mapping
ARM: mv78xx0: use fixed pci i/o mapping
ARM: iop13xx: use fixed PCI i/o mapping
iop13xx: use more regular PCI I/O space handling
ARM: orion5x: use fixed PCI i/o mapping
ARM: kirkwood: use fixed PCI i/o mapping
ARM: dove: use fixed PCI i/o mapping
ARM: footbridge: use fixed PCI i/o mapping
ARM: shark: use fixed PCI i/o mapping
ARM: integrator: remove trailing whitespace on pci_v3.c
ARM: integrator: use fixed PCI i/o mapping
ARM: tegra: use fixed PCI i/o mapping
ARM: versatile: use fixed PCI i/o mapping
ARM: move PCI i/o resource setup into common code
ARM: Add fixed PCI i/o mapping
i2c: iop3xx: use standard gpiolib functions
i2c: iop3xx: clean-up trailing whitespace
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/mach-shark')
-rw-r--r-- | arch/arm/mach-shark/core.c | 18 | ||||
-rw-r--r-- | arch/arm/mach-shark/include/mach/debug-macro.S | 7 | ||||
-rw-r--r-- | arch/arm/mach-shark/include/mach/entry-macro.S | 3 | ||||
-rw-r--r-- | arch/arm/mach-shark/include/mach/io.h | 18 | ||||
-rw-r--r-- | arch/arm/mach-shark/pci.c | 5 |
5 files changed, 11 insertions, 40 deletions
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c index 2704bcd869cd..d35b94ef73b7 100644 --- a/arch/arm/mach-shark/core.c +++ b/arch/arm/mach-shark/core.c @@ -21,9 +21,6 @@ #include <asm/mach/arch.h> #include <asm/mach/time.h> -#define IO_BASE 0xe0000000 -#define IO_SIZE 0x08000000 -#define IO_START 0x40000000 #define ROMCARD_SIZE 0x08000000 #define ROMCARD_START 0x10000000 @@ -104,20 +101,6 @@ arch_initcall(shark_init); extern void shark_init_irq(void); -static struct map_desc shark_io_desc[] __initdata = { - { - .virtual = IO_BASE, - .pfn = __phys_to_pfn(IO_START), - .length = IO_SIZE, - .type = MT_DEVICE - } -}; - -static void __init shark_map_io(void) -{ - iotable_init(shark_io_desc, ARRAY_SIZE(shark_io_desc)); -} - #define IRQ_TIMER 0 #define HZ_TIME ((1193180 + HZ/2) / HZ) @@ -158,7 +141,6 @@ static void shark_init_early(void) MACHINE_START(SHARK, "Shark") /* Maintainer: Alexander Schulz */ .atag_offset = 0x3000, - .map_io = shark_map_io, .init_early = shark_init_early, .init_irq = shark_init_irq, .timer = &shark_timer, diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S index 20eb2bf2a42b..d129119a3f69 100644 --- a/arch/arm/mach-shark/include/mach/debug-macro.S +++ b/arch/arm/mach-shark/include/mach/debug-macro.S @@ -12,9 +12,10 @@ */ .macro addruart, rp, rv, tmp - mov \rp, #0xe0000000 - orr \rp, \rp, #0x000003f8 - mov \rv, \rp + mov \rp, #0x3f8 + orr \rv, \rp, #0xfe000000 + orr \rv, \rv, #0x00e00000 + orr \rp, \rp, #0x40000000 .endm .macro senduart,rd,rx diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S index 5901b09fc96a..c9e49f049532 100644 --- a/arch/arm/mach-shark/include/mach/entry-macro.S +++ b/arch/arm/mach-shark/include/mach/entry-macro.S @@ -8,7 +8,8 @@ * warranty of any kind, whether express or implied. */ .macro get_irqnr_preamble, base, tmp - mov \base, #0xe0000000 + mov \base, #0xfe000000 + orr \base, \base, #0x00e00000 .endm .macro get_irqnr_and_base, irqnr, irqstat, base, tmp diff --git a/arch/arm/mach-shark/include/mach/io.h b/arch/arm/mach-shark/include/mach/io.h deleted file mode 100644 index 1a45fc01ff1d..000000000000 --- a/arch/arm/mach-shark/include/mach/io.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * arch/arm/mach-shark/include/mach/io.h - * - * by Alexander Schulz - * - * derived from: - * arch/arm/mach-ebsa110/include/mach/io.h - * Copyright (C) 1997,1998 Russell King - */ - -#ifndef __ASM_ARM_ARCH_IO_H -#define __ASM_ARM_ARCH_IO_H - -#define IO_SPACE_LIMIT 0xffffffff - -#define __io(a) ((void __iomem *)(0xe0000000 + (a))) - -#endif diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c index 9089407d5326..b8b4ab323a3e 100644 --- a/arch/arm/mach-shark/pci.c +++ b/arch/arm/mach-shark/pci.c @@ -8,12 +8,15 @@ #include <linux/kernel.h> #include <linux/pci.h> #include <linux/init.h> +#include <linux/io.h> #include <video/vga.h> #include <asm/irq.h> #include <asm/mach/pci.h> #include <asm/mach-types.h> +#define IO_START 0x40000000 + static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { if (dev->bus->number == 0) @@ -44,6 +47,8 @@ static int __init shark_pci_init(void) pcibios_min_mem = 0x50000000; vga_base = 0xe8000000; + pci_ioremap_io(0, IO_START); + pci_common_init(&shark_pci); return 0; |