Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

[linux-2.6-omap-h63xx.git] / arch / arm / mach-pxa / pm.c

diff --git a/arch/arm/mach-pxa/pm.c b/arch/arm/mach-pxa/pm.c
index 82a4bf34c251c338cc735679a559eef2ecf4e46e..852ea72d8c80bfbc87a2b9741a1a53c371f60a04 100644 (file)
--- a/arch/arm/mach-pxa/pm.c
+++ b/arch/arm/mach-pxa/pm.c
@@ -12,6 +12,7 @@
  */
 #include <linux/config.h>
 #include <linux/init.h>
+#include <linux/module.h>
 #include <linux/suspend.h>
 #include <linux/errno.h>
 #include <linux/time.h>
@@ -19,6 +20,7 @@
 #include <asm/hardware.h>
 #include <asm/memory.h>
 #include <asm/system.h>
+#include <asm/arch/pm.h>
 #include <asm/arch/pxa-regs.h>
 #include <asm/arch/lubbock.h>
 #include <asm/mach/time.h>
@@ -29,9 +31,6 @@
  */
 #undef DEBUG
 
-extern void pxa_cpu_suspend(void);
-extern void pxa_cpu_resume(void);
-
 #define SAVE(x)                sleep_save[SLEEP_SAVE_##x] = x
 #define RESTORE(x)     x = sleep_save[SLEEP_SAVE_##x]
 
@@ -63,21 +62,25 @@ enum {      SLEEP_SAVE_START = 0,
        SLEEP_SAVE_ICMR,
        SLEEP_SAVE_CKEN,
 
+#ifdef CONFIG_PXA27x
+       SLEEP_SAVE_MDREFR,
+       SLEEP_SAVE_PWER, SLEEP_SAVE_PCFR, SLEEP_SAVE_PRER,
+       SLEEP_SAVE_PFER, SLEEP_SAVE_PKWR,
+#endif
+
        SLEEP_SAVE_CKSUM,
 
        SLEEP_SAVE_SIZE
 };
 
 
-static int pxa_pm_enter(suspend_state_t state)
+int pxa_pm_enter(suspend_state_t state)
 {
        unsigned long sleep_save[SLEEP_SAVE_SIZE];
        unsigned long checksum = 0;
        struct timespec delta, rtc;
        int i;
-
-       if (state != PM_SUSPEND_MEM)
-               return -EINVAL;
+       extern void pxa_cpu_pm_enter(suspend_state_t state);
 
 #ifdef CONFIG_IWMMXT
        /* force any iWMMXt context to ram **/
@@ -100,16 +103,17 @@ static int pxa_pm_enter(suspend_state_t state)
        SAVE(GAFR2_L); SAVE(GAFR2_U);
 
 #ifdef CONFIG_PXA27x
+       SAVE(MDREFR);
        SAVE(GPLR3); SAVE(GPDR3); SAVE(GRER3); SAVE(GFER3); SAVE(PGSR3);
        SAVE(GAFR3_L); SAVE(GAFR3_U);
+       SAVE(PWER); SAVE(PCFR); SAVE(PRER);
+       SAVE(PFER); SAVE(PKWR);
 #endif
 
        SAVE(ICMR);
        ICMR = 0;
 
        SAVE(CKEN);
-       CKEN = 0;
-
        SAVE(PSTR);
 
        /* Note: wake up source are set up in each machine specific files */
@@ -123,16 +127,15 @@ static int pxa_pm_enter(suspend_state_t state)
        /* Clear sleep reset status */
        RCSR = RCSR_SMR;
 
-       /* set resume return address */
-       PSPR = virt_to_phys(pxa_cpu_resume);
-
        /* before sleeping, calculate and save a checksum */
        for (i = 0; i < SLEEP_SAVE_SIZE - 1; i++)
                checksum += sleep_save[i];
        sleep_save[SLEEP_SAVE_CKSUM] = checksum;
 
        /* *** go zzz *** */
-       pxa_cpu_suspend();
+       pxa_cpu_pm_enter(state);
+
+       cpu_init();
 
        /* after sleeping, validate the checksum */
        checksum = 0;
@@ -145,25 +148,29 @@ static int pxa_pm_enter(suspend_state_t state)
                LUB_HEXLED = 0xbadbadc5;
 #endif
                while (1)
-                       pxa_cpu_suspend();
+                       pxa_cpu_pm_enter(state);
        }
 
        /* ensure not to come back here if it wasn't intended */
        PSPR = 0;
 
        /* restore registers */
+       RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2);
+       RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2);
        RESTORE(GAFR0_L); RESTORE(GAFR0_U);
        RESTORE(GAFR1_L); RESTORE(GAFR1_U);
        RESTORE(GAFR2_L); RESTORE(GAFR2_U);
-       RESTORE_GPLEVEL(0); RESTORE_GPLEVEL(1); RESTORE_GPLEVEL(2);
-       RESTORE(GPDR0); RESTORE(GPDR1); RESTORE(GPDR2);
        RESTORE(GRER0); RESTORE(GRER1); RESTORE(GRER2);
        RESTORE(GFER0); RESTORE(GFER1); RESTORE(GFER2);
        RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
 
 #ifdef CONFIG_PXA27x
-       RESTORE(GAFR3_L); RESTORE(GAFR3_U); RESTORE_GPLEVEL(3);
-       RESTORE(GPDR3); RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3);
+       RESTORE(MDREFR);
+       RESTORE_GPLEVEL(3); RESTORE(GPDR3);
+       RESTORE(GAFR3_L); RESTORE(GAFR3_U);
+       RESTORE(GRER3); RESTORE(GFER3); RESTORE(PGSR3);
+       RESTORE(PWER); RESTORE(PCFR); RESTORE(PRER);
+       RESTORE(PFER); RESTORE(PKWR);
 #endif
 
        PSSR = PSSR_RDH | PSSR_PH;
@@ -187,6 +194,8 @@ static int pxa_pm_enter(suspend_state_t state)
        return 0;
 }
 
+EXPORT_SYMBOL_GPL(pxa_pm_enter);
+
 unsigned long sleep_phys_sp(void *sp)
 {
        return virt_to_phys(sp);
@@ -195,19 +204,25 @@ unsigned long sleep_phys_sp(void *sp)
 /*
  * Called after processes are frozen, but before we shut down devices.
  */
-static int pxa_pm_prepare(suspend_state_t state)
+int pxa_pm_prepare(suspend_state_t state)
 {
-       return 0;
+       extern int pxa_cpu_pm_prepare(suspend_state_t state);
+
+       return pxa_cpu_pm_prepare(state);
 }
 
+EXPORT_SYMBOL_GPL(pxa_pm_prepare);
+
 /*
  * Called after devices are re-setup, but before processes are thawed.
  */
-static int pxa_pm_finish(suspend_state_t state)
+int pxa_pm_finish(suspend_state_t state)
 {
        return 0;
 }
 
+EXPORT_SYMBOL_GPL(pxa_pm_finish);
+
 /*
  * Set to PM_DISK_FIRMWARE so we can quickly veto suspend-to-disk.
  */
@@ -224,4 +239,4 @@ static int __init pxa_pm_init(void)
        return 0;
 }
 
-late_initcall(pxa_pm_init);
+device_initcall(pxa_pm_init);