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Diffstat (limited to 'arch/arm/mach-pxa/pxa25x.c')
-rw-r--r--arch/arm/mach-pxa/pxa25x.c66
1 files changed, 29 insertions, 37 deletions
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index 305452b56e9..25d17a1dab7 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -36,6 +36,12 @@
#include "devices.h"
#include "clock.h"
+int cpu_is_pxa26x(void)
+{
+ return cpu_is_pxa250() && ((BOOT_DEF & 0x8) == 0);
+}
+EXPORT_SYMBOL_GPL(cpu_is_pxa26x);
+
/*
* Various clock factors driven by the CCCR register.
*/
@@ -203,48 +209,21 @@ static struct clk pxa25x_clks[] = {
* More ones like CP and general purpose register values are preserved
* with the stack pointer in sleep.S.
*/
-enum { SLEEP_SAVE_PGSR0, SLEEP_SAVE_PGSR1, SLEEP_SAVE_PGSR2,
-
- SLEEP_SAVE_GAFR0_L, SLEEP_SAVE_GAFR0_U,
- SLEEP_SAVE_GAFR1_L, SLEEP_SAVE_GAFR1_U,
- SLEEP_SAVE_GAFR2_L, SLEEP_SAVE_GAFR2_U,
-
+enum {
SLEEP_SAVE_PSTR,
-
SLEEP_SAVE_CKEN,
-
SLEEP_SAVE_COUNT
};
static void pxa25x_cpu_pm_save(unsigned long *sleep_save)
{
- SAVE(PGSR0); SAVE(PGSR1); SAVE(PGSR2);
-
- SAVE(GAFR0_L); SAVE(GAFR0_U);
- SAVE(GAFR1_L); SAVE(GAFR1_U);
- SAVE(GAFR2_L); SAVE(GAFR2_U);
-
SAVE(CKEN);
SAVE(PSTR);
-
- /* Clear GPIO transition detect bits */
- GEDR0 = GEDR0; GEDR1 = GEDR1; GEDR2 = GEDR2;
}
static void pxa25x_cpu_pm_restore(unsigned long *sleep_save)
{
- /* ensure not to come back here if it wasn't intended */
- PSPR = 0;
-
- /* restore registers */
- RESTORE(GAFR0_L); RESTORE(GAFR0_U);
- RESTORE(GAFR1_L); RESTORE(GAFR1_U);
- RESTORE(GAFR2_L); RESTORE(GAFR2_U);
- RESTORE(PGSR0); RESTORE(PGSR1); RESTORE(PGSR2);
-
- PSSR = PSSR_RDH | PSSR_PH;
-
RESTORE(CKEN);
RESTORE(PSTR);
}
@@ -256,19 +235,32 @@ static void pxa25x_cpu_pm_enter(suspend_state_t state)
switch (state) {
case PM_SUSPEND_MEM:
- /* set resume return address */
- PSPR = virt_to_phys(pxa_cpu_resume);
pxa25x_cpu_suspend(PWRMODE_SLEEP);
break;
}
}
+static int pxa25x_cpu_pm_prepare(void)
+{
+ /* set resume return address */
+ PSPR = virt_to_phys(pxa_cpu_resume);
+ return 0;
+}
+
+static void pxa25x_cpu_pm_finish(void)
+{
+ /* ensure not to come back here if it wasn't intended */
+ PSPR = 0;
+}
+
static struct pxa_cpu_pm_fns pxa25x_cpu_pm_fns = {
.save_count = SLEEP_SAVE_COUNT,
.valid = suspend_valid_only_mem,
.save = pxa25x_cpu_pm_save,
.restore = pxa25x_cpu_pm_restore,
.enter = pxa25x_cpu_pm_enter,
+ .prepare = pxa25x_cpu_pm_prepare,
+ .finish = pxa25x_cpu_pm_finish,
};
static void __init pxa25x_init_pm(void)
@@ -330,6 +322,8 @@ static struct sys_device pxa25x_sysdev[] = {
{
.cls = &pxa_irq_sysclass,
}, {
+ .cls = &pxa2xx_mfp_sysclass,
+ }, {
.cls = &pxa_gpio_sysclass,
},
};
@@ -338,11 +332,7 @@ static int __init pxa25x_init(void)
{
int i, ret = 0;
- /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
- if (cpu_is_pxa255())
- clks_register(&pxa25x_hwuart_clk, 1);
-
- if (cpu_is_pxa21x() || cpu_is_pxa25x()) {
+ if (cpu_is_pxa25x()) {
reset_status = RCSR;
@@ -365,9 +355,11 @@ static int __init pxa25x_init(void)
return ret;
}
- /* Only add HWUART for PXA255/26x; PXA210/250/27x do not have it. */
- if (cpu_is_pxa255())
+ /* Only add HWUART for PXA255/26x; PXA210/250 do not have it. */
+ if (cpu_is_pxa255() || cpu_is_pxa26x()) {
+ clks_register(&pxa25x_hwuart_clk, 1);
ret = platform_device_register(&pxa_device_hwuart);
+ }
return ret;
}