diff options
| author | Ben Dooks <ben-linux@fluff.org> | 2006-12-06 01:50:24 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-12-07 16:17:49 +0000 |
| commit | 9073341c2ba5d5e77b3d05d84cf9e3a16e8a7902 (patch) | |
| tree | 96e35ea42213836fa949df8f5d4b20f6834f855d /arch/arm/mach-s3c2410/s3c2410-pm.c | |
| parent | f9a8ca1cabf09316d79cab7f04e1390261ff9035 (diff) | |
| download | op-kernel-dev-9073341c2ba5d5e77b3d05d84cf9e3a16e8a7902.zip op-kernel-dev-9073341c2ba5d5e77b3d05d84cf9e3a16e8a7902.tar.gz | |
[ARM] 3986/1: H1940: suspend to RAM support
Add support to suspend and resume, using the
H1940's bootloader
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-s3c2410/s3c2410-pm.c')
| -rw-r--r-- | arch/arm/mach-s3c2410/s3c2410-pm.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/s3c2410-pm.c b/arch/arm/mach-s3c2410/s3c2410-pm.c index e51d766..9cd0c10 100644 --- a/arch/arm/mach-s3c2410/s3c2410-pm.c +++ b/arch/arm/mach-s3c2410/s3c2410-pm.c @@ -32,6 +32,7 @@ #include <asm/mach-types.h> #include <asm/arch/regs-gpio.h> +#include <asm/arch/h1940.h> #include "cpu.h" #include "pm.h" @@ -52,6 +53,19 @@ static void s3c2410_pm_prepare(void) DBG("GSTATUS3 0x%08x\n", __raw_readl(S3C2410_GSTATUS3)); DBG("GSTATUS4 0x%08x\n", __raw_readl(S3C2410_GSTATUS4)); + if (machine_is_h1940()) { + 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 += 0x400) + 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); |
