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[ARM] 5300/1: fixup spitz reset during boot

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Some machines don't have the pullup/down on their reset
pin, so configuring the reset generating pin as input makes
them reset immediately. Fix that by making reset pin direction
configurable.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dmitry Baryshkov
2008-10-09 16:58:13 +01:00
committed by Russell King
parent 6defd90433
commit 69fc7eed5f
4 changed files with 14 additions and 8 deletions
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9
arch/arm/mach-pxa/reset.c
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@@ -20,7 +20,7 @@ static void do_hw_reset(void);
static int reset_gpio = -1;
int init_gpio_reset(int gpio)
int init_gpio_reset(int gpio, int output)
{
int rc;
@@ -30,9 +30,12 @@ int init_gpio_reset(int gpio)
goto out;
}
rc = gpio_direction_input(gpio);
if (output)
rc = gpio_direction_output(gpio, 0);
else
rc = gpio_direction_input(gpio);
if (rc) {
printk(KERN_ERR "Can't configure reset_gpio for input\n");
printk(KERN_ERR "Can't configure reset_gpio\n");
gpio_free(gpio);
goto out;
}