diff options
Diffstat (limited to 'recipes-kernel/linux/linux-yocto-3.14/h1940/0008-ARM-s3c24xx-h1940-unlock-reset-button.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-yocto-3.14/h1940/0008-ARM-s3c24xx-h1940-unlock-reset-button.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-yocto-3.14/h1940/0008-ARM-s3c24xx-h1940-unlock-reset-button.patch b/recipes-kernel/linux/linux-yocto-3.14/h1940/0008-ARM-s3c24xx-h1940-unlock-reset-button.patch new file mode 100644 index 0000000..6c3c9d3 --- /dev/null +++ b/recipes-kernel/linux/linux-yocto-3.14/h1940/0008-ARM-s3c24xx-h1940-unlock-reset-button.patch @@ -0,0 +1,52 @@ +From f163da149d098264475000f33bf919fe3342a5f6 Mon Sep 17 00:00:00 2001 +From: Vasily Khoruzhick <anarsoul@gmail.com> +Date: Sat, 3 Dec 2011 12:12:21 +0300 +Subject: [PATCH 08/17] ARM: s3c24xx: h1940: unlock reset button + +Reset button can be left locked by bootloader and in case of kernel panic +user won't be able to reset a device by pressing reset button. + +Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> +--- + arch/arm/mach-s3c24xx/mach-h1940.c | 17 +++++++++++++++-- + 1 file changed, 15 insertions(+), 2 deletions(-) + +diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c +index 9ca26d1..6403d80 100644 +--- a/arch/arm/mach-s3c24xx/mach-h1940.c ++++ b/arch/arm/mach-s3c24xx/mach-h1940.c +@@ -219,9 +219,9 @@ static struct s3c2410fb_mach_info h1940_fb_info __initdata = { + .gpcup = 0x0000ffff, + .gpcup_mask = 0xffffffff, + .gpdcon = 0xaa84aaa0, +- .gpdcon_mask = 0xffffffff, ++ .gpdcon_mask = 0xfffffff3, + .gpdup = 0x0000faff, +- .gpdup_mask = 0xffffffff, ++ .gpdup_mask = 0xfffffffd, + }; + + static int power_supply_init(struct device *dev) +@@ -795,6 +795,19 @@ static void __init h1940_init(void) + gpio_direction_output(S3C2410_GPA(7), 0); + gpio_direction_output(H1940_LATCH_LED_FLASH, 0); + ++ gpio_request(S3C2410_GPD(1), "Reset sense"); ++ gpio_request(S3C2410_GPA(14), "Reset reset"); ++ gpio_request(S3C2410_GPB(6), "Reset lock"); ++ gpio_direction_input(S3C2410_GPD(1)); ++ gpio_direction_output(S3C2410_GPA(14), 0); ++ if (gpio_get_value(S3C2410_GPD(1))) ++ gpio_set_value(S3C2410_GPA(14), 0); ++ ++ gpio_direction_output(S3C2410_GPA(14), 1); ++ mdelay(100); ++ gpio_direction_output(S3C2410_GPB(6), 1); ++ gpio_direction_output(S3C2410_GPB(6), 0); ++ + i2c_register_board_info(0, h1940_i2c_devices, + ARRAY_SIZE(h1940_i2c_devices)); + } +-- +1.9.3 + |