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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 05:02:10 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-30 05:02:10 +0400 |
commit | 820d41cf0cd0e94a5661e093821e2e5c6b36a9d8 (patch) | |
tree | 4d03046048dc52a8fa539c7e7b846e02738d8ca5 /arch/arm/mach-tegra/include/mach/iomap.h | |
parent | 6268b325c3066234e7bddb99d2b98bcedb0c0033 (diff) | |
parent | 88b48684fe2d4f6207223423227c80d5408bccaf (diff) | |
download | linux-820d41cf0cd0e94a5661e093821e2e5c6b36a9d8.tar.xz |
Merge tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: cleanups of io includes" from Olof Johansson:
"Rob Herring has done a sweeping change cleaning up all of the
mach/io.h includes, moving some of the oft-repeated macros to a common
location and removing a bunch of boiler plate. This is another step
closer to a common zImage for multiple platforms."
Fix up various fairly trivial conflicts (<mach/io.h> removal vs changes
around it, tegra localtimer.o is *still* gone, yadda-yadda).
* tag 'cleanup2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: tegra: Include assembler.h in sleep.S to fix build break
ARM: pxa: use common IOMEM definition
ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol
ARM: __io abuse cleanup
ARM: create a common IOMEM definition
ARM: iop13xx: fix missing declaration of iop13xx_init_early
ARM: fix ioremap/iounmap for !CONFIG_MMU
ARM: kill off __mem_pci
ARM: remove bunch of now unused mach/io.h files
ARM: make mach/io.h include optional
ARM: clps711x: remove unneeded include of mach/io.h
ARM: dove: add explicit include of dove.h to addr-map.c
ARM: at91: add explicit include of hardware.h to uncompressor
ARM: ep93xx: clean-up mach/io.h
ARM: tegra: clean-up mach/io.h
ARM: orion5x: clean-up mach/io.h
ARM: davinci: remove unneeded mach/io.h include
[media] davinci: remove includes of mach/io.h
ARM: OMAP: Remove remaining includes for mach/io.h
ARM: msm: clean-up mach/io.h
...
Diffstat (limited to 'arch/arm/mach-tegra/include/mach/iomap.h')
-rw-r--r-- | arch/arm/mach-tegra/include/mach/iomap.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/include/mach/iomap.h b/arch/arm/mach-tegra/include/mach/iomap.h index cff672a344f4..7e76da73121c 100644 --- a/arch/arm/mach-tegra/include/mach/iomap.h +++ b/arch/arm/mach-tegra/include/mach/iomap.h @@ -277,4 +277,46 @@ # define TEGRA_DEBUG_UART_BASE TEGRA_UARTE_BASE #endif +/* On TEGRA, many peripherals are very closely packed in + * two 256MB io windows (that actually only use about 64KB + * at the start of each). + * + * We will just map the first 1MB of each window (to minimize + * pt entries needed) and provide a macro to transform physical + * io addresses to an appropriate void __iomem *. + * + */ + +#define IO_IRAM_PHYS 0x40000000 +#define IO_IRAM_VIRT IOMEM(0xFE400000) +#define IO_IRAM_SIZE SZ_256K + +#define IO_CPU_PHYS 0x50040000 +#define IO_CPU_VIRT IOMEM(0xFE000000) +#define IO_CPU_SIZE SZ_16K + +#define IO_PPSB_PHYS 0x60000000 +#define IO_PPSB_VIRT IOMEM(0xFE200000) +#define IO_PPSB_SIZE SZ_1M + +#define IO_APB_PHYS 0x70000000 +#define IO_APB_VIRT IOMEM(0xFE300000) +#define IO_APB_SIZE SZ_1M + +#define IO_TO_VIRT_BETWEEN(p, st, sz) ((p) >= (st) && (p) < ((st) + (sz))) +#define IO_TO_VIRT_XLATE(p, pst, vst) (((p) - (pst) + (vst))) + +#define IO_TO_VIRT(n) ( \ + IO_TO_VIRT_BETWEEN((n), IO_PPSB_PHYS, IO_PPSB_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_PPSB_PHYS, IO_PPSB_VIRT) : \ + IO_TO_VIRT_BETWEEN((n), IO_APB_PHYS, IO_APB_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_APB_PHYS, IO_APB_VIRT) : \ + IO_TO_VIRT_BETWEEN((n), IO_CPU_PHYS, IO_CPU_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_CPU_PHYS, IO_CPU_VIRT) : \ + IO_TO_VIRT_BETWEEN((n), IO_IRAM_PHYS, IO_IRAM_SIZE) ? \ + IO_TO_VIRT_XLATE((n), IO_IRAM_PHYS, IO_IRAM_VIRT) : \ + NULL) + +#define IO_ADDRESS(n) (IO_TO_VIRT(n)) + #endif |