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[ARM] MX3: Use ioremap wrapper to map SoC devices nonshared

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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>
This commit is contained in:
Sascha Hauer 2008-10-15 09:50:23 +02:00
parent 6c1249e588
commit eadefeff9c
1 changed files with 20 additions and 0 deletions
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20
arch/arm/plat-mxc/include/mach/io.h
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@ -14,6 +14,26 @@
/* Allow IO space to be anywhere in the memory */
#define IO_SPACE_LIMIT 0xffffffff
#ifdef CONFIG_ARCH_MX3
#define __arch_ioremap __mx3_ioremap
#define __arch_iounmap __iounmap
static inline void __iomem *
__mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
{
if (mtype == MT_DEVICE) {
/* Access all peripherals below 0x80000000 as nonshared device
* but leave l2cc alone.
*/
if ((phys_addr < 0x80000000) && ((phys_addr < L2CC_BASE_ADDR) ||
(phys_addr >= L2CC_BASE_ADDR + L2CC_SIZE)))
mtype = MT_DEVICE_NONSHARED;
}
return __arm_ioremap(phys_addr, size, mtype);
}
#endif
/* io address mapping macro */
#define __io(a) ((void __iomem *)(a))