diff options
author | Sascha Hauer <s.hauer@pengutronix.de> | 2008-10-15 03:50:23 -0400 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2008-10-30 10:56:14 -0400 |
commit | eadefeff9c5572d82c2f5d907a0bfb3ba55ce901 (patch) | |
tree | 430359c3e4c25be1c6df3997e6be7565701db667 /arch/arm | |
parent | 6c1249e588cbf0484fc3e6b0f0fc4a5892749b4d (diff) |
[ARM] MX3: Use ioremap wrapper to map SoC devices nonshared
The internal devices of the MX3 Processor have to be mapped
MT_DEVICE_NONSHARED devices, otherwise cache corruptions occur.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/plat-mxc/include/mach/io.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/io.h b/arch/arm/plat-mxc/include/mach/io.h index 65b6810124c1..5d4cb1196441 100644 --- a/arch/arm/plat-mxc/include/mach/io.h +++ b/arch/arm/plat-mxc/include/mach/io.h | |||
@@ -14,6 +14,26 @@ | |||
14 | /* Allow IO space to be anywhere in the memory */ | 14 | /* Allow IO space to be anywhere in the memory */ |
15 | #define IO_SPACE_LIMIT 0xffffffff | 15 | #define IO_SPACE_LIMIT 0xffffffff |
16 | 16 | ||
17 | #ifdef CONFIG_ARCH_MX3 | ||
18 | #define __arch_ioremap __mx3_ioremap | ||
19 | #define __arch_iounmap __iounmap | ||
20 | |||
21 | static inline void __iomem * | ||
22 | __mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype) | ||
23 | { | ||
24 | if (mtype == MT_DEVICE) { | ||
25 | /* Access all peripherals below 0x80000000 as nonshared device | ||
26 | * but leave l2cc alone. | ||
27 | */ | ||
28 | if ((phys_addr < 0x80000000) && ((phys_addr < L2CC_BASE_ADDR) || | ||
29 | (phys_addr >= L2CC_BASE_ADDR + L2CC_SIZE))) | ||
30 | mtype = MT_DEVICE_NONSHARED; | ||
31 | } | ||
32 | |||
33 | return __arm_ioremap(phys_addr, size, mtype); | ||
34 | } | ||
35 | #endif | ||
36 | |||
17 | /* io address mapping macro */ | 37 | /* io address mapping macro */ |
18 | #define __io(a) ((void __iomem *)(a)) | 38 | #define __io(a) ((void __iomem *)(a)) |
19 | 39 | ||