linux:
arch/arm/mach-sc8810/gpio.c
./kernel/arch/arm/plat-s3c24xx/gpiolib.c
uboot:
>arch/arm/include/asm/arch-sc8810/asm_generic_gpio.h
arch/arm/include/asm/arch-sc8810/sc8810_gpio_cfg.h
>arch/arm/cpu/armv7/sc8810/check_reboot.c
linux:
arch/arm/mach-sc8810/gpio.c
./kernel/arch/arm/plat-s3c24xx/gpiolib.c
uboot:
>arch/arm/include/asm/arch-sc8810/asm_generic_gpio.h
arch/arm/include/asm/arch-sc8810/sc8810_gpio_cfg.h
>arch/arm/cpu/armv7/sc8810/check_reboot.c