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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2016-08-19 17:24:36 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2016-08-26 16:10:19 +0200 |
| commit | c94e4ad2d5e0e5f4036cccaa0e6e773841e8f859 (patch) | |
| tree | 5cf6c39838ac6a2b6fba862978942b1bcdecb8a9 /arch/arm/mach-rpc | |
| parent | ARM: sa1100: move StrongARM CPU ID checks to cputype.h (diff) | |
| download | linux-c94e4ad2d5e0e5f4036cccaa0e6e773841e8f859.tar.xz linux-c94e4ad2d5e0e5f4036cccaa0e6e773841e8f859.zip | |
ARM: document and update UNCACHEABLE_ADDR definitions
Document the UNCACHEABLE_ADDR definitions for footbridge and SA1100
so that we know where they're located and/or what they're accessing.
Change RiscPC to calculate the UNCACHEABLE_ADDR value from FLUSH_BASE
as that's where we locate that.
UNCACHEABLE_ADDR is used to perform an uncached access (ARMv4
terminology) necessary to force a CPU clock-switch to the memory-
speed clock, as required for entering WFI.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mach-rpc')
| -rw-r--r-- | arch/arm/mach-rpc/include/mach/hardware.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/mach-rpc/include/mach/hardware.h b/arch/arm/mach-rpc/include/mach/hardware.h index 257166b21f3d..aa79fa47373a 100644 --- a/arch/arm/mach-rpc/include/mach/hardware.h +++ b/arch/arm/mach-rpc/include/mach/hardware.h @@ -40,7 +40,7 @@ #define SCREEN_END 0xdfc00000 #define SCREEN_BASE 0xdf800000 -#define UNCACHEABLE_ADDR 0xdf010000 +#define UNCACHEABLE_ADDR (FLUSH_BASE + 0x10000) /* * IO Addresses |