5 files changed, 32 insertions, 2 deletions

diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
index 63965c78de8c..08b2f300eb79 100644
--- a/arch/arm/mach-s3c2410/Kconfig
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -41,9 +41,16 @@ config BAST_PC104_IRQ
           Say Y here to enable the PC104 IRQ routing on the
           Simtec BAST (EB2410ITX)
 
+config PM_H1940
+        bool
+        depends on PM
+        help
+          Internal node for H1940 and related PM
+
 config ARCH_H1940
         bool "IPAQ H1940"
         select CPU_S3C2410
+        select PM_H1940
         help
           Say Y here if you are using the HP IPAQ H1940
 
@@ -115,6 +122,7 @@ config MACH_VR1000
 config MACH_RX3715
         bool "HP iPAQ rx3715"
         select CPU_S3C2440
+        select PM_H1940
         help
           Say Y here if you are using the HP iPAQ rx3715.
 
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
index 0cd71dfec447..27663e28cc88 100644
--- a/arch/arm/mach-s3c2410/Makefile
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_CPU_S3C2410_DMA)	+= s3c2410-dma.o
 
 obj-$(CONFIG_PM)                += pm.o sleep.o
 obj-$(CONFIG_PM_SIMTEC)         += pm-simtec.o
+obj-$(CONFIG_PM_H1940)          += pm-h1940.o
 
 # S3C2412 support
 obj-$(CONFIG_CPU_S3C2412)       += s3c2412.o
@@ -77,7 +78,7 @@ obj-$(CONFIG_MACH_AML_M5900)	+= mach-amlm5900.o
 obj-$(CONFIG_MACH_ANUBIS)       += mach-anubis.o
 obj-$(CONFIG_MACH_OSIRIS)       += mach-osiris.o
 obj-$(CONFIG_ARCH_BAST)         += mach-bast.o usb-simtec.o
-obj-$(CONFIG_ARCH_H1940)        += mach-h1940.o pm-h1940.o
+obj-$(CONFIG_ARCH_H1940)        += mach-h1940.o
 obj-$(CONFIG_MACH_N30)          += mach-n30.o
 obj-$(CONFIG_ARCH_SMDK2410)     += mach-smdk2410.o
 obj-$(CONFIG_MACH_SMDK2413)     += mach-smdk2413.o
diff --git a/arch/arm/mach-s3c2410/mach-rx3715.c b/arch/arm/mach-s3c2410/mach-rx3715.c
index 23d7c052013c..ecbcdf79d739 100644
--- a/arch/arm/mach-s3c2410/mach-rx3715.c
+++ b/arch/arm/mach-s3c2410/mach-rx3715.c
@@ -42,6 +42,7 @@
 #include <asm/arch/regs-gpio.h>
 #include <asm/arch/regs-lcd.h>
 
+#include <asm/arch/h1940.h>
 #include <asm/arch/nand.h>
 #include <asm/arch/fb.h>
 
@@ -224,7 +225,9 @@ static void __init rx3715_init_irq(void)
 
 static void __init rx3715_init_machine(void)
 {
+        memcpy(phys_to_virt(H1940_SUSPEND_RESUMEAT), h1940_pm_return, 1024);
         s3c2410_pm_init();
+
         s3c24xx_fb_set_platdata(&rx3715_lcdcfg);
 }
 
diff --git a/arch/arm/mach-s3c2410/s3c2410-pm.c b/arch/arm/mach-s3c2410/s3c2410-pm.c
index 9cd0c104f1cb..77c6814c0f05 100644
--- a/arch/arm/mach-s3c2410/s3c2410-pm.c
+++ b/arch/arm/mach-s3c2410/s3c2410-pm.c
@@ -66,6 +66,22 @@ static void s3c2410_pm_prepare(void)
                 __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM));
         }
 
+        /* the RX3715 uses similar code and the same H1940 and the
+         * same offsets for resume and checksum pointers */
+
+        if (machine_is_rx3715()) {
+                void *base = phys_to_virt(H1940_SUSPEND_CHECK);
+                unsigned long ptr;
+                unsigned long calc = 0;
+
+                /* generate check for the bootloader to check on resume */
+
+                for (ptr = 0; ptr < 0x40000; ptr += 0x4)
+                        calc += __raw_readl(base+ptr);
+
+                __raw_writel(calc, phys_to_virt(H1940_SUSPEND_CHECKSUM));
+        }
+
         if ( machine_is_aml_m5900() )
                 s3c2410_gpio_setpin(S3C2410_GPF2, 1);
 
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index f2d0d6f78973..b7f194af20b4 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -619,7 +619,9 @@ void __init reserve_node_zero(pg_data_t *pgdat)
         if (machine_is_p720t())
                 res_size = 0x00014000;
 
-        if (machine_is_h1940()) {
+        /* H1940 and RX3715 need to reserve this for suspend */
+
+        if (machine_is_h1940() || machine_is_rx3715()) {
                 reserve_bootmem_node(pgdat, 0x30003000, 0x1000);
                 reserve_bootmem_node(pgdat, 0x30081000, 0x1000);
         }