diff options
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/io.h')
| -rw-r--r-- | arch/arm/plat-mxc/include/mach/io.h | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/arch/arm/plat-mxc/include/mach/io.h b/arch/arm/plat-mxc/include/mach/io.h index b4f2de769466..4347a87d2bb0 100644 --- a/arch/arm/plat-mxc/include/mach/io.h +++ b/arch/arm/plat-mxc/include/mach/io.h @@ -14,19 +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 +#if defined(CONFIG_SOC_IMX31) || defined(CONFIG_SOC_IMX35) +#include <mach/hardware.h> + +#define __arch_ioremap __imx_ioremap #define __arch_iounmap __iounmap +#define addr_in_module(addr, mod) \ + ((unsigned long)(addr) - mod ## _BASE_ADDR < mod ## _SIZE) + static inline void __iomem * -__mx3_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype) +__imx_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 (mtype == MT_DEVICE && (cpu_is_mx31() || cpu_is_mx35())) { + /* + * Access all peripherals below 0x80000000 as nonshared device + * on mx3, but leave l2cc alone. Otherwise cache corruptions + * can occur. */ - if ((phys_addr < 0x80000000) && ((phys_addr < 0x30000000) || - (phys_addr >= 0x30000000 + SZ_1M))) + if (phys_addr < 0x80000000 && + !addr_in_module(phys_addr, MX3x_L2CC)) mtype = MT_DEVICE_NONSHARED; } |