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| author | Vasily Khoruzhick <anarsoul@gmail.com> | 2010-05-11 09:55:11 +0300 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2010-05-12 09:20:28 +0900 |
| commit | 192ff91fc84e067a3babfddb96114a51c939548e (patch) | |
| tree | 5496c57534ec7d0fd26a39e4002c63447cb8b438 | |
| parent | 0741b7d2699d1e7b4ceab27522c9e5518b2dbd2c (diff) | |
ARM: RX1950: configure GPG13-15 as input before suspend
According to datasheet GPG13-15 must be configured as input in NAND
boot mode, otherwise device will not be able to wake up
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
| -rw-r--r-- | arch/arm/mach-s3c2410/pm.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/pm.c b/arch/arm/mach-s3c2410/pm.c index 6a61486ca75..725636fc4dc 100644 --- a/arch/arm/mach-s3c2410/pm.c +++ b/arch/arm/mach-s3c2410/pm.c @@ -79,6 +79,17 @@ static void s3c2410_pm_prepare(void) if ( machine_is_aml_m5900() ) s3c2410_gpio_setpin(S3C2410_GPF(2), 1); + if (machine_is_rx1950()) { + /* According to S3C2442 user's manual, page 7-17, + * when the system is operating in NAND boot mode, + * the hardware pin configuration - EINT[23:21] – + * must be set as input for starting up after + * wakeup from sleep mode + */ + s3c_gpio_cfgpin(S3C2410_GPG(13), S3C2410_GPIO_INPUT); + s3c_gpio_cfgpin(S3C2410_GPG(14), S3C2410_GPIO_INPUT); + s3c_gpio_cfgpin(S3C2410_GPG(15), S3C2410_GPIO_INPUT); + } } static int s3c2410_pm_resume(struct sys_device *dev) |