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-rw-r--r--arch/arm/mach-imx/headsmp.S18
-rw-r--r--arch/arm/mach-imx/pm-imx6q.c15
2 files changed, 9 insertions, 24 deletions
diff --git a/arch/arm/mach-imx/headsmp.S b/arch/arm/mach-imx/headsmp.S
index 921fc15..a58c8b0 100644
--- a/arch/arm/mach-imx/headsmp.S
+++ b/arch/arm/mach-imx/headsmp.S
@@ -26,16 +26,16 @@ ENDPROC(v7_secondary_startup)
#ifdef CONFIG_PM
/*
- * The following code is located into the .data section. This is to
- * allow phys_l2x0_saved_regs to be accessed with a relative load
- * as we are running on physical address here.
+ * 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.
*/
- .data
- .align
#ifdef CONFIG_CACHE_L2X0
.macro pl310_resume
- ldr r2, phys_l2x0_saved_regs
+ 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
@@ -43,9 +43,9 @@ ENDPROC(v7_secondary_startup)
str r1, [r0, #L2X0_CTRL] @ re-enable L2
.endm
- .globl phys_l2x0_saved_regs
-phys_l2x0_saved_regs:
- .long 0
+l2x0_saved_regs_offset:
+ .word l2x0_saved_regs - .
+
#else
.macro pl310_resume
.endm
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index ee42d20..5faba7a 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -22,8 +22,6 @@
#include "common.h"
#include "hardware.h"
-extern unsigned long phys_l2x0_saved_regs;
-
static int imx6q_suspend_finish(unsigned long val)
{
cpu_do_idle();
@@ -57,18 +55,5 @@ static const struct platform_suspend_ops imx6q_pm_ops = {
void __init imx6q_pm_init(void)
{
- /*
- * The l2x0 core code provides an infrastucture to save and restore
- * l2x0 registers across suspend/resume cycle. But because imx6q
- * retains L2 content during suspend and needs to resume L2 before
- * MMU is enabled, it can only utilize register saving support and
- * have to take care of restoring on its own. So we save physical
- * address of the data structure used by l2x0 core to save registers,
- * and later restore the necessary ones in imx6q resume entry.
- */
-#ifdef CONFIG_CACHE_L2X0
- phys_l2x0_saved_regs = __pa(&l2x0_saved_regs);
-#endif
-
suspend_set_ops(&imx6q_pm_ops);
}
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