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-rw-r--r--arch/arm/mach-imx/mm-imx3.c30
-rw-r--r--arch/arm/mach-imx/pm-imx27.c2
-rw-r--r--arch/arm/mach-mx5/mm.c6
-rw-r--r--arch/arm/mach-mx5/pm-imx5.c3
-rw-r--r--arch/arm/mach-mx5/system.c1
-rw-r--r--arch/arm/plat-mxc/include/mach/common.h11
-rw-r--r--arch/arm/plat-mxc/include/mach/mxc.h7
-rw-r--r--arch/arm/plat-mxc/include/mach/system.h35
-rw-r--r--arch/arm/plat-mxc/system.c2
9 files changed, 56 insertions, 41 deletions
diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c
index ffa33b4..6fad0d6 100644
--- a/arch/arm/mach-imx/mm-imx3.c
+++ b/arch/arm/mach-imx/mm-imx3.c
@@ -30,6 +30,34 @@
#include <mach/iomux-v3.h>
#include <mach/irqs.h>
+static void imx3_idle(void)
+{
+ unsigned long reg = 0;
+ __asm__ __volatile__(
+ /* disable I and D cache */
+ "mrc p15, 0, %0, c1, c0, 0\n"
+ "bic %0, %0, #0x00001000\n"
+ "bic %0, %0, #0x00000004\n"
+ "mcr p15, 0, %0, c1, c0, 0\n"
+ /* invalidate I cache */
+ "mov %0, #0\n"
+ "mcr p15, 0, %0, c7, c5, 0\n"
+ /* clear and invalidate D cache */
+ "mov %0, #0\n"
+ "mcr p15, 0, %0, c7, c14, 0\n"
+ /* WFI */
+ "mov %0, #0\n"
+ "mcr p15, 0, %0, c7, c0, 4\n"
+ "nop\n" "nop\n" "nop\n" "nop\n"
+ "nop\n" "nop\n" "nop\n"
+ /* enable I and D cache */
+ "mrc p15, 0, %0, c1, c0, 0\n"
+ "orr %0, %0, #0x00001000\n"
+ "orr %0, %0, #0x00000004\n"
+ "mcr p15, 0, %0, c1, c0, 0\n"
+ : "=r" (reg));
+}
+
void imx3_init_l2x0(void)
{
void __iomem *l2x0_base;
@@ -98,6 +126,7 @@ 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;
}
void __init imx35_init_early(void)
@@ -105,6 +134,7 @@ void __init imx35_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX35);
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;
}
void __init mx31_init_irq(void)
diff --git a/arch/arm/mach-imx/pm-imx27.c b/arch/arm/mach-imx/pm-imx27.c
index acf1769..e455d2f 100644
--- a/arch/arm/mach-imx/pm-imx27.c
+++ b/arch/arm/mach-imx/pm-imx27.c
@@ -11,7 +11,7 @@
#include <linux/suspend.h>
#include <linux/io.h>
#include <mach/system.h>
-#include <mach/mx27.h>
+#include <mach/hardware.h>
static int mx27_suspend_enter(suspend_state_t state)
{
diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c
index baea6e5..379593e 100644
--- a/arch/arm/mach-mx5/mm.c
+++ b/arch/arm/mach-mx5/mm.c
@@ -21,6 +21,11 @@
#include <mach/devices-common.h>
#include <mach/iomux-v3.h>
+static void imx5_idle(void)
+{
+ mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
+}
+
/*
* Define the MX51 memory map.
*/
@@ -56,6 +61,7 @@ void __init imx51_init_early(void)
mxc_set_cpu_type(MXC_CPU_MX51);
mxc_iomux_v3_init(MX51_IO_ADDRESS(MX51_IOMUXC_BASE_ADDR));
mxc_arch_reset_init(MX51_IO_ADDRESS(MX51_WDOG1_BASE_ADDR));
+ imx_idle = imx5_idle;
}
void __init mx53_map_io(void)
diff --git a/arch/arm/mach-mx5/pm-imx5.c b/arch/arm/mach-mx5/pm-imx5.c
index e4529af..0624fb8 100644
--- a/arch/arm/mach-mx5/pm-imx5.c
+++ b/arch/arm/mach-mx5/pm-imx5.c
@@ -14,7 +14,8 @@
#include <linux/err.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-#include <mach/system.h>
+#include <mach/common.h>
+#include <mach/hardware.h>
#include "crm_regs.h"
static struct clk *gpc_dvfs_clk;
diff --git a/arch/arm/mach-mx5/system.c b/arch/arm/mach-mx5/system.c
index 76ae8dc..144ebeb 100644
--- a/arch/arm/mach-mx5/system.c
+++ b/arch/arm/mach-mx5/system.c
@@ -13,6 +13,7 @@
#include <linux/platform_device.h>
#include <linux/io.h>
#include <mach/hardware.h>
+#include <mach/common.h>
#include "crm_regs.h"
/* set cpu low power mode before WFI instruction. This function is called
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 4e3d978..afaa967 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -72,4 +72,15 @@ extern void mxc_arch_reset_init(void __iomem *);
extern void mx51_efikamx_reset(void);
extern int mx53_revision(void);
extern int mx53_display_revision(void);
+
+enum mxc_cpu_pwr_mode {
+ WAIT_CLOCKED, /* wfi only */
+ WAIT_UNCLOCKED, /* WAIT */
+ WAIT_UNCLOCKED_POWER_OFF, /* WAIT + SRPG */
+ STOP_POWER_ON, /* just STOP */
+ STOP_POWER_OFF, /* STOP + SRPG */
+};
+
+extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode);
+extern void (*imx_idle)(void);
#endif
diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index 0987923..00a7819 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -183,13 +183,6 @@ struct cpu_op {
};
int tzic_enable_wake(int is_idle);
-enum mxc_cpu_pwr_mode {
- WAIT_CLOCKED, /* wfi only */
- WAIT_UNCLOCKED, /* WAIT */
- WAIT_UNCLOCKED_POWER_OFF, /* WAIT + SRPG */
- STOP_POWER_ON, /* just STOP */
- STOP_POWER_OFF, /* STOP + SRPG */
-};
extern struct cpu_op *(*get_cpu_op)(int *op);
#endif
diff --git a/arch/arm/plat-mxc/include/mach/system.h b/arch/arm/plat-mxc/include/mach/system.h
index 51f02a9..cf88b35 100644
--- a/arch/arm/plat-mxc/include/mach/system.h
+++ b/arch/arm/plat-mxc/include/mach/system.h
@@ -17,41 +17,12 @@
#ifndef __ASM_ARCH_MXC_SYSTEM_H__
#define __ASM_ARCH_MXC_SYSTEM_H__
-#include <mach/hardware.h>
-#include <mach/common.h>
-
-extern void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode);
+extern void (*imx_idle)(void);
static inline void arch_idle(void)
{
- /* fix i.MX31 errata TLSbo65953 and i.MX35 errata ENGcm09472 */
- if (cpu_is_mx31() || cpu_is_mx35()) {
- unsigned long reg = 0;
- __asm__ __volatile__(
- /* disable I and D cache */
- "mrc p15, 0, %0, c1, c0, 0\n"
- "bic %0, %0, #0x00001000\n"
- "bic %0, %0, #0x00000004\n"
- "mcr p15, 0, %0, c1, c0, 0\n"
- /* invalidate I cache */
- "mov %0, #0\n"
- "mcr p15, 0, %0, c7, c5, 0\n"
- /* clear and invalidate D cache */
- "mov %0, #0\n"
- "mcr p15, 0, %0, c7, c14, 0\n"
- /* WFI */
- "mov %0, #0\n"
- "mcr p15, 0, %0, c7, c0, 4\n"
- "nop\n" "nop\n" "nop\n" "nop\n"
- "nop\n" "nop\n" "nop\n"
- /* enable I and D cache */
- "mrc p15, 0, %0, c1, c0, 0\n"
- "orr %0, %0, #0x00001000\n"
- "orr %0, %0, #0x00000004\n"
- "mcr p15, 0, %0, c1, c0, 0\n"
- : "=r" (reg));
- } else if (cpu_is_mx51())
- mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
+ if (imx_idle != NULL)
+ (imx_idle)();
else
cpu_do_idle();
}
diff --git a/arch/arm/plat-mxc/system.c b/arch/arm/plat-mxc/system.c
index 8024f2a..5fa03e7 100644
--- a/arch/arm/plat-mxc/system.c
+++ b/arch/arm/plat-mxc/system.c
@@ -28,6 +28,8 @@
#include <asm/system.h>
#include <asm/mach-types.h>
+void (*imx_idle)(void) = NULL;
+
static void __iomem *wdog_base;
/*
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