diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-s3c2440/mach-osiris.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c index 0ba7e9060c7..c326983f4a8 100644 --- a/arch/arm/mach-s3c2440/mach-osiris.c +++ b/arch/arm/mach-s3c2440/mach-osiris.c @@ -276,7 +276,21 @@ static unsigned char pm_osiris_ctrl0; static int osiris_pm_suspend(struct sys_device *sd, pm_message_t state) { + unsigned int tmp; + pm_osiris_ctrl0 = __raw_readb(OSIRIS_VA_CTRL0); + tmp = pm_osiris_ctrl0 & ~OSIRIS_CTRL0_NANDSEL; + + /* ensure correct NAND slot is selected on resume */ + if ((pm_osiris_ctrl0 & OSIRIS_CTRL0_BOOT_INT) == 0) + tmp |= 2; + + __raw_writeb(tmp, OSIRIS_VA_CTRL0); + + /* ensure that an nRESET is not generated on resume. */ + s3c2410_gpio_setpin(S3C2410_GPA21, 1); + s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_OUT); + return 0; } @@ -285,6 +299,10 @@ static int osiris_pm_resume(struct sys_device *sd) if (pm_osiris_ctrl0 & OSIRIS_CTRL0_FIX8) __raw_writeb(OSIRIS_CTRL1_FIX8, OSIRIS_VA_CTRL1); + __raw_writeb(pm_osiris_ctrl0, OSIRIS_VA_CTRL0); + + s3c2410_gpio_cfgpin(S3C2410_GPA21, S3C2410_GPA21_nRSTOUT); + return 0; } |