diff options
Diffstat (limited to 'arch/arm/mach-s3c2410/s3c2410-pm.c')
| -rw-r--r-- | arch/arm/mach-s3c2410/s3c2410-pm.c | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/arch/arm/mach-s3c2410/s3c2410-pm.c b/arch/arm/mach-s3c2410/s3c2410-pm.c index e51d7666951..8bb6e5e21f5 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" @@ -52,12 +53,41 @@ 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)); + } + + /* 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); } -int s3c2410_pm_resume(struct sys_device *dev) +static int s3c2410_pm_resume(struct sys_device *dev) { unsigned long tmp; @@ -81,6 +111,7 @@ static int s3c2410_pm_add(struct sys_device *dev) return 0; } +#if defined(CONFIG_CPU_S3C2410) static struct sysdev_driver s3c2410_pm_driver = { .add = s3c2410_pm_add, .resume = s3c2410_pm_resume, @@ -94,7 +125,9 @@ static int __init s3c2410_pm_drvinit(void) } arch_initcall(s3c2410_pm_drvinit); +#endif +#if defined(CONFIG_CPU_S3C2440) static struct sysdev_driver s3c2440_pm_driver = { .add = s3c2410_pm_add, .resume = s3c2410_pm_resume, @@ -106,7 +139,9 @@ static int __init s3c2440_pm_drvinit(void) } arch_initcall(s3c2440_pm_drvinit); +#endif +#if defined(CONFIG_CPU_S3C2442) static struct sysdev_driver s3c2442_pm_driver = { .add = s3c2410_pm_add, .resume = s3c2410_pm_resume, @@ -118,3 +153,4 @@ static int __init s3c2442_pm_drvinit(void) } arch_initcall(s3c2442_pm_drvinit); +#endif |