[ARM] pxa: Add support for suspend on PalmTX, T5 and LD

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>

7 files changed, 109 insertions, 12 deletions

diff --git a/arch/arm/mach-pxa/include/mach/palmld.h b/arch/arm/mach-pxa/include/mach/palmld.h
index 7c295a48d784..fb13c82ad6dc 100644
--- a/arch/arm/mach-pxa/include/mach/palmld.h
+++ b/arch/arm/mach-pxa/include/mach/palmld.h
@@ -87,6 +87,7 @@
 #define PALMLD_IDE_SIZE         0x00100000
 
 #define PALMLD_PHYS_IO_START    0x40000000
+#define PALMLD_STR_BASE         0xa0200000
 
 /* BATTERY */
 #define PALMLD_BAT_MAX_VOLTAGE          4000    /* 4.00V maximum voltage */
diff --git a/arch/arm/mach-pxa/include/mach/palmt5.h b/arch/arm/mach-pxa/include/mach/palmt5.h
index 94db2881f048..052bfe788ada 100644
--- a/arch/arm/mach-pxa/include/mach/palmt5.h
+++ b/arch/arm/mach-pxa/include/mach/palmt5.h
@@ -59,6 +59,7 @@
 /* Various addresses  */
 #define PALMT5_PHYS_RAM_START   0xa0000000
 #define PALMT5_PHYS_IO_START    0x40000000
+#define PALMT5_STR_BASE         0xa0200000
 
 /* TOUCHSCREEN */
 #define AC97_LINK_FRAME         21
diff --git a/arch/arm/mach-pxa/include/mach/palmtx.h b/arch/arm/mach-pxa/include/mach/palmtx.h
index 1e8bccbda510..9f7d62fb4cbb 100644
--- a/arch/arm/mach-pxa/include/mach/palmtx.h
+++ b/arch/arm/mach-pxa/include/mach/palmtx.h
@@ -78,6 +78,8 @@
 #define PALMTX_PHYS_RAM_START   0xa0000000
 #define PALMTX_PHYS_IO_START    0x40000000
 
+#define PALMTX_STR_BASE         0xa0200000
+
 #define PALMTX_PHYS_FLASH_START PXA_CS0_PHYS    /* ChipSelect 0 */
 #define PALMTX_PHYS_NAND_START  PXA_CS1_PHYS    /* ChipSelect 1 */
 
diff --git a/arch/arm/mach-pxa/palmld.c b/arch/arm/mach-pxa/palmld.c
index 8587477a9bb7..ecf5910e39d7 100644
--- a/arch/arm/mach-pxa/palmld.c
+++ b/arch/arm/mach-pxa/palmld.c
@@ -24,6 +24,7 @@
 #include <linux/gpio.h>
 #include <linux/wm97xx_batt.h>
 #include <linux/power_supply.h>
+#include <linux/sysdev.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -68,10 +69,10 @@ static unsigned long palmld_pin_config[] __initdata = {
         GPIO47_FICP_TXD,
 
         /* MATRIX KEYPAD */
-        GPIO100_KP_MKIN_0,
-        GPIO101_KP_MKIN_1,
-        GPIO102_KP_MKIN_2,
-        GPIO97_KP_MKIN_3,
+        GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
         GPIO103_KP_MKOUT_0,
         GPIO104_KP_MKOUT_1,
         GPIO105_KP_MKOUT_2,
@@ -507,6 +508,33 @@ static struct pxafb_mach_info palmld_lcd_screen = {
 };
 
 /******************************************************************************
+ * Power management - standby
+ ******************************************************************************/
+#ifdef CONFIG_PM
+static u32 *addr __initdata;
+static u32 resume[3] __initdata = {
+        0xe3a00101,     /* mov  r0,     #0x40000000 */
+        0xe380060f,     /* orr  r0, r0, #0x00f00000 */
+        0xe590f008,     /* ldr  pc, [r0, #0x08] */
+};
+
+static int __init palmld_pm_init(void)
+{
+        int i;
+
+        /* this is where the bootloader jumps */
+        addr = phys_to_virt(PALMLD_STR_BASE);
+
+        for (i = 0; i < 3; i++)
+                addr[i] = resume[i];
+
+        return 0;
+}
+
+device_initcall(palmld_pm_init);
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static struct platform_device *devices[] __initdata = {
diff --git a/arch/arm/mach-pxa/palmt5.c b/arch/arm/mach-pxa/palmt5.c
index 9521c7b33492..0680f1a575a3 100644
--- a/arch/arm/mach-pxa/palmt5.c
+++ b/arch/arm/mach-pxa/palmt5.c
@@ -75,10 +75,10 @@ static unsigned long palmt5_pin_config[] __initdata = {
         GPIO95_GPIO,    /* usb power */
 
         /* MATRIX KEYPAD */
-        GPIO100_KP_MKIN_0,
-        GPIO101_KP_MKIN_1,
-        GPIO102_KP_MKIN_2,
-        GPIO97_KP_MKIN_3,
+        GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
         GPIO103_KP_MKOUT_0,
         GPIO104_KP_MKOUT_1,
         GPIO105_KP_MKOUT_2,
@@ -450,6 +450,33 @@ static struct pxafb_mach_info palmt5_lcd_screen = {
 };
 
 /******************************************************************************
+ * Power management - standby
+ ******************************************************************************/
+#ifdef CONFIG_PM
+static u32 *addr __initdata;
+static u32 resume[3] __initdata = {
+        0xe3a00101,     /* mov  r0,     #0x40000000 */
+        0xe380060f,     /* orr  r0, r0, #0x00f00000 */
+        0xe590f008,     /* ldr  pc, [r0, #0x08] */
+};
+
+static int __init palmt5_pm_init(void)
+{
+        int i;
+
+        /* this is where the bootloader jumps */
+        addr = phys_to_virt(PALMT5_STR_BASE);
+
+        for (i = 0; i < 3; i++)
+                addr[i] = resume[i];
+
+        return 0;
+}
+
+device_initcall(palmt5_pm_init);
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static struct platform_device *devices[] __initdata = {
diff --git a/arch/arm/mach-pxa/palmtx.c b/arch/arm/mach-pxa/palmtx.c
index b490c0924619..59d0c1cba556 100644
--- a/arch/arm/mach-pxa/palmtx.c
+++ b/arch/arm/mach-pxa/palmtx.c
@@ -93,10 +93,10 @@ static unsigned long palmtx_pin_config[] __initdata = {
         GPIO116_GPIO,   /* wifi ready */
 
         /* MATRIX KEYPAD */
-        GPIO100_KP_MKIN_0,
-        GPIO101_KP_MKIN_1,
-        GPIO102_KP_MKIN_2,
-        GPIO97_KP_MKIN_3,
+        GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
+        GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
         GPIO103_KP_MKOUT_0,
         GPIO104_KP_MKOUT_1,
         GPIO105_KP_MKOUT_2,
@@ -459,6 +459,33 @@ static struct pxafb_mach_info palmtx_lcd_screen = {
 };
 
 /******************************************************************************
+ * Power management - standby
+ ******************************************************************************/
+#ifdef CONFIG_PM
+static u32 *addr __initdata;
+static u32 resume[3] __initdata = {
+        0xe3a00101,     /* mov  r0,     #0x40000000 */
+        0xe380060f,     /* orr  r0, r0, #0x00f00000 */
+        0xe590f008,     /* ldr  pc, [r0, #0x08] */
+};
+
+static int __init palmtx_pm_init(void)
+{
+        int i;
+
+        /* this is where the bootloader jumps */
+        addr = phys_to_virt(PALMTX_STR_BASE);
+
+        for (i = 0; i < 3; i++)
+                addr[i] = resume[i];
+
+        return 0;
+}
+
+device_initcall(palmtx_pm_init);
+#endif
+
+/******************************************************************************
  * Machine init
  ******************************************************************************/
 static struct platform_device *devices[] __initdata = {
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index b438fc4fb77b..e6344ece00ce 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -828,6 +828,17 @@ void __init reserve_node_zero(pg_data_t *pgdat)
                                 BOOTMEM_DEFAULT);
         }
 
+        if (machine_is_palmld() || machine_is_palmtx()) {
+                reserve_bootmem_node(pgdat, 0xa0000000, 0x1000,
+                                BOOTMEM_EXCLUSIVE);
+                reserve_bootmem_node(pgdat, 0xa0200000, 0x1000,
+                                BOOTMEM_EXCLUSIVE);
+        }
+
+        if (machine_is_palmt5())
+                reserve_bootmem_node(pgdat, 0xa0200000, 0x1000,
+                                BOOTMEM_EXCLUSIVE);
+
 #ifdef CONFIG_SA1111
         /*
          * Because of the SA1111 DMA bug, we want to preserve our