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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 15:15:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 15:15:27 -0700
commit42cd71bf1e3a081b3150018bbf448cb6c8a844a5 (patch)
tree4a5d2eb0444255e4ad827a76dbd1417dd3876db6 /arch/arm/plat-mxc/include/mach/io.h
parentf5039935ac685b3b9b8c13fbc33cac8643dee32e (diff)
parent9a55d9752d8abfc62f1ab05ccc790d22a0c8e7c0 (diff)
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (137 commits) ARM: bcmring: convert to use sp804 clockevents ARM: bcmring: convert to sp804 clocksource ARM: 6912/1: bcmring: Add clkdev table in init_early clockevents: ARM sp804: obtain sp804 timer rate via clks clockevents: ARM sp804: allow clockevent name to be specified clocksource: ARM sp804: obtain sp804 timer rate via clks clocksource: ARM sp804: allow clocksource name to be specified clocksource: convert OMAP1 to 32-bit down counting clocksource clocksource: convert MXS timrotv2 to 32-bit down counting clocksource clocksource: convert SPEAr platforms 16-bit up counting clocksource clocksource: convert Integrator/AP 16-bit down counting clocksource clocksource: convert W90x900 24-bit down counting clocksource clocksource: convert ARM 32-bit down counting clocksources clocksource: convert ARM 32-bit up counting clocksources clocksource: add common mmio clocksource ARM: update sa1100 to reflect PXA updates ARM: omap1: convert to using readl/writel instead of volatile struct ARM: omap1: delete useless interrupt handler ARM: s5p: consolidate selection of timer register ARM: 6939/1: fix missing 'cpu_relax()' declaration ...
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/io.h')
-rw-r--r--arch/arm/plat-mxc/include/mach/io.h23
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;
}