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author | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
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committer | Srikant Patnaik | 2015-01-13 15:08:24 +0530 |
commit | 97327692361306d1e6259021bc425e32832fdb50 (patch) | |
tree | fe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/arm/mach-pxa/smemc.c | |
parent | 2d05a8f663478a44e088d122e0d62109bbc801d0 (diff) | |
parent | a3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff) | |
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dirty fix to merging
Diffstat (limited to 'arch/arm/mach-pxa/smemc.c')
-rw-r--r-- | arch/arm/mach-pxa/smemc.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/smemc.c b/arch/arm/mach-pxa/smemc.c new file mode 100644 index 00000000..79923058 --- /dev/null +++ b/arch/arm/mach-pxa/smemc.c @@ -0,0 +1,58 @@ +/* + * Static Memory Controller + */ + +#include <linux/module.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/syscore_ops.h> + +#include <mach/hardware.h> +#include <mach/smemc.h> + +#ifdef CONFIG_PM +static unsigned long msc[2]; +static unsigned long sxcnfg, memclkcfg; +static unsigned long csadrcfg[4]; + +static int pxa3xx_smemc_suspend(void) +{ + msc[0] = __raw_readl(MSC0); + msc[1] = __raw_readl(MSC1); + sxcnfg = __raw_readl(SXCNFG); + memclkcfg = __raw_readl(MEMCLKCFG); + csadrcfg[0] = __raw_readl(CSADRCFG0); + csadrcfg[1] = __raw_readl(CSADRCFG1); + csadrcfg[2] = __raw_readl(CSADRCFG2); + csadrcfg[3] = __raw_readl(CSADRCFG3); + + return 0; +} + +static void pxa3xx_smemc_resume(void) +{ + __raw_writel(msc[0], MSC0); + __raw_writel(msc[1], MSC1); + __raw_writel(sxcnfg, SXCNFG); + __raw_writel(memclkcfg, MEMCLKCFG); + __raw_writel(csadrcfg[0], CSADRCFG0); + __raw_writel(csadrcfg[1], CSADRCFG1); + __raw_writel(csadrcfg[2], CSADRCFG2); + __raw_writel(csadrcfg[3], CSADRCFG3); +} + +static struct syscore_ops smemc_syscore_ops = { + .suspend = pxa3xx_smemc_suspend, + .resume = pxa3xx_smemc_resume, +}; + +static int __init smemc_init(void) +{ + if (cpu_is_pxa3xx()) + register_syscore_ops(&smemc_syscore_ops); + + return 0; +} +subsys_initcall(smemc_init); +#endif |