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ARM: RX1950: configure GPG13-15 as input before suspend

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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>
This commit is contained in:
Vasily Khoruzhick 2010-05-11 09:55:11 +03:00 committed by Ben Dooks
parent 0741b7d269
commit 192ff91fc8
1 changed files with 11 additions and 0 deletions
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11
arch/arm/mach-s3c2410/pm.c
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@ -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)