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authorShawn Guo <shawn.guo@linaro.org>2014-02-26 19:48:33 +0800
committerShawn Guo <shawn.guo@linaro.org>2014-03-05 10:40:49 +0800
commitc356bdb407baf23b202a6b4d2234114db6ae55bd (patch)
tree4dd40d43e54d0e8c0bcb61d1bd3eea24e78015ba /arch/arm/mach-imx
parent7ea653efa98d8144345227576fc084ed7a356cf8 (diff)
downloadop-kernel-dev-c356bdb407baf23b202a6b4d2234114db6ae55bd.zip
op-kernel-dev-c356bdb407baf23b202a6b4d2234114db6ae55bd.tar.gz
ARM: imx6: move v7_cpu_resume() into suspend-imx6.S
The suspend-imx6.S is introduced recently for suspend low-level assembly code. Since function v7_cpu_resume() is only used by suspend support, it makes sense to move the function into suspend-imx6.S, and control the build of the file with CONFIG_SUSPEND option. Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Diffstat (limited to 'arch/arm/mach-imx')
-rw-r--r--arch/arm/mach-imx/Makefile5
-rw-r--r--arch/arm/mach-imx/common.h8
-rw-r--r--arch/arm/mach-imx/headsmp.S36
-rw-r--r--arch/arm/mach-imx/suspend-imx6.S33
4 files changed, 43 insertions, 39 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 979ff84..b4c19cd 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -103,9 +103,10 @@ obj-$(CONFIG_SOC_IMX6Q) += clk-imx6q.o mach-imx6q.o
obj-$(CONFIG_SOC_IMX6SL) += clk-imx6sl.o mach-imx6sl.o
AFLAGS_suspend-imx6.o :=-Wa,-march=armv7-a
-obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o suspend-imx6.o
+obj-$(CONFIG_SUSPEND) += suspend-imx6.o
+obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o
# i.MX6SL reuses i.MX6Q code
-obj-$(CONFIG_SOC_IMX6SL) += pm-imx6q.o headsmp.o suspend-imx6.o
+obj-$(CONFIG_SOC_IMX6SL) += pm-imx6q.o headsmp.o
# i.MX5 based machines
obj-$(CONFIG_MACH_MX51_BABBAGE) += mach-mx51_babbage.o
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 91d69cc..b5241ea 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -116,7 +116,6 @@ void imx_enable_cpu(int cpu, bool enable);
void imx_set_cpu_jump(int cpu, void *jump_addr);
u32 imx_get_cpu_arg(int cpu);
void imx_set_cpu_arg(int cpu, u32 arg);
-void v7_cpu_resume(void);
#ifdef CONFIG_SMP
void v7_secondary_startup(void);
void imx_scu_map_io(void);
@@ -145,7 +144,14 @@ void imx6sl_set_wait_clk(bool enter);
void imx_cpu_die(unsigned int cpu);
int imx_cpu_kill(unsigned int cpu);
+#ifdef CONFIG_SUSPEND
+void v7_cpu_resume(void);
void imx6_suspend(void __iomem *ocram_vbase);
+#else
+static inline void v7_cpu_resume(void) {}
+static inline void imx6_suspend(void __iomem *ocram_vbase) {}
+#endif
+
void imx6q_pm_init(void);
void imx6dl_pm_init(void);
void imx6sl_pm_init(void);
diff --git a/arch/arm/mach-imx/headsmp.S b/arch/arm/mach-imx/headsmp.S
index 627f16f..e4b9fed 100644
--- a/arch/arm/mach-imx/headsmp.S
+++ b/arch/arm/mach-imx/headsmp.S
@@ -12,8 +12,6 @@
#include <linux/linkage.h>
#include <linux/init.h>
-#include <asm/asm-offsets.h>
-#include <asm/hardware/cache-l2x0.h>
.section ".text.head", "ax"
@@ -35,37 +33,3 @@ ENTRY(v7_secondary_startup)
b secondary_startup
ENDPROC(v7_secondary_startup)
#endif
-
-#ifdef CONFIG_ARM_CPU_SUSPEND
-/*
- * The following code must assume it is running from physical address
- * where absolute virtual addresses to the data section have to be
- * turned into relative ones.
- */
-
-#ifdef CONFIG_CACHE_L2X0
- .macro pl310_resume
- adr r0, l2x0_saved_regs_offset
- ldr r2, [r0]
- add r2, r2, r0
- ldr r0, [r2, #L2X0_R_PHY_BASE] @ get physical base of l2x0
- ldr r1, [r2, #L2X0_R_AUX_CTRL] @ get aux_ctrl value
- str r1, [r0, #L2X0_AUX_CTRL] @ restore aux_ctrl
- mov r1, #0x1
- str r1, [r0, #L2X0_CTRL] @ re-enable L2
- .endm
-
-l2x0_saved_regs_offset:
- .word l2x0_saved_regs - .
-
-#else
- .macro pl310_resume
- .endm
-#endif
-
-ENTRY(v7_cpu_resume)
- bl v7_invalidate_l1
- pl310_resume
- b cpu_resume
-ENDPROC(v7_cpu_resume)
-#endif
diff --git a/arch/arm/mach-imx/suspend-imx6.S b/arch/arm/mach-imx/suspend-imx6.S
index 81b9d1d..20048ff 100644
--- a/arch/arm/mach-imx/suspend-imx6.S
+++ b/arch/arm/mach-imx/suspend-imx6.S
@@ -10,6 +10,7 @@
*/
#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
#include <asm/hardware/cache-l2x0.h>
#include "hardware.h"
@@ -326,3 +327,35 @@ resume:
mov pc, lr
ENDPROC(imx6_suspend)
+
+/*
+ * The following code must assume it is running from physical address
+ * where absolute virtual addresses to the data section have to be
+ * turned into relative ones.
+ */
+
+#ifdef CONFIG_CACHE_L2X0
+ .macro pl310_resume
+ adr r0, l2x0_saved_regs_offset
+ ldr r2, [r0]
+ add r2, r2, r0
+ ldr r0, [r2, #L2X0_R_PHY_BASE] @ get physical base of l2x0
+ ldr r1, [r2, #L2X0_R_AUX_CTRL] @ get aux_ctrl value
+ str r1, [r0, #L2X0_AUX_CTRL] @ restore aux_ctrl
+ mov r1, #0x1
+ str r1, [r0, #L2X0_CTRL] @ re-enable L2
+ .endm
+
+l2x0_saved_regs_offset:
+ .word l2x0_saved_regs - .
+
+#else
+ .macro pl310_resume
+ .endm
+#endif
+
+ENTRY(v7_cpu_resume)
+ bl v7_invalidate_l1
+ pl310_resume
+ b cpu_resume
+ENDPROC(v7_cpu_resume)
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