@@ -58,6 +58,23 @@ static void imx3_idle(void)
: "=r" (reg));
}
+static void __iomem *imx3_ioremap(unsigned long phys_addr, size_t size,
+ unsigned int mtype)
+{
+ if (mtype == MT_DEVICE) {
+ /*
+ * Access all peripherals below 0x80000000 as nonshared device
+ * on mx3, but leave l2cc alone. Otherwise cache corruptions
+ * can occur.
+ */
+ if (phys_addr < 0x80000000 &&
+ !addr_in_module(phys_addr, MX3x_L2CC))
+ mtype = MT_DEVICE_NONSHARED;
+ }
+
+ return __arm_ioremap(phys_addr, size, mtype);
+}
+
void imx3_init_l2x0(void)
{
void __iomem *l2x0_base;
@@ -127,6 +144,7 @@ void __init imx31_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX31);
mxc_arch_reset_init(MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
imx_idle = imx3_idle;
+ imx_ioremap = imx3_ioremap;
}
void __init imx35_init_early(void)
@@ -135,6 +153,7 @@ void __init imx35_init_early(void)
mxc_iomux_v3_init(MX35_IO_ADDRESS(MX35_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX35_IO_ADDRESS(MX35_WDOG_BASE_ADDR));
imx_idle = imx3_idle;
+ imx_ioremap = imx3_ioremap;
}
void __init mx31_init_irq(void)
@@ -14,32 +14,22 @@
/* Allow IO space to be anywhere in the memory */
#define IO_SPACE_LIMIT 0xffffffff
-#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)
+extern void __iomem *(*imx_ioremap)(unsigned long, size_t, unsigned int);
+
static inline void __iomem *
__imx_ioremap(unsigned long phys_addr, size_t size, unsigned int mtype)
{
- 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 &&
- !addr_in_module(phys_addr, MX3x_L2CC))
- mtype = MT_DEVICE_NONSHARED;
- }
-
- return __arm_ioremap(phys_addr, size, mtype);
+ if (imx_ioremap != NULL)
+ return imx_ioremap(phys_addr, size, mtype);
+ else
+ return __arm_ioremap(phys_addr, size, mtype);
}
-#endif
/* io address mapping macro */
#define __io(a) __typesafe_io(a)
@@ -29,6 +29,7 @@
#include <asm/mach-types.h>
void (*imx_idle)(void) = NULL;
+void __iomem *(*imx_ioremap)(unsigned long, size_t, unsigned int) = NULL;
static void __iomem *wdog_base;
This patch adds an ioremap hook imx_ioremap to be called in __imx_ioremap(). Any soc that needs a customized ioremap other than __arm_ioremap() can set up this hook in soc specific call. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> --- arch/arm/mach-imx/mm-imx3.c | 19 +++++++++++++++++++ arch/arm/plat-mxc/include/mach/io.h | 22 ++++++---------------- arch/arm/plat-mxc/system.c | 1 + 3 files changed, 26 insertions(+), 16 deletions(-)