This patch enables GPIO Command for EXYNOS5. Function has been added to asm/gpio.h to decode the input gpio name to gpio number. example: gpio set gpa00 GPIO_INPUT in cmd_gpio.c has been modified to GPIO_DIRECTION_INPUT as GPIO_INPUT is alraedy defined in exynos5 and leading to a error.
Signed-off-by: Rajeshwari Shinde rajeshwari.s@samsung.com --- Chnages in V2: - New patch arch/arm/include/asm/arch-exynos/gpio.h | 88 +++++++++++++++++++++++++++++++ common/cmd_gpio.c | 6 +- include/configs/exynos5250-dt.h | 1 + 3 files changed, 92 insertions(+), 3 deletions(-)
diff --git a/arch/arm/include/asm/arch-exynos/gpio.h b/arch/arm/include/asm/arch-exynos/gpio.h index af882dd..66e4a8e 100644 --- a/arch/arm/include/asm/arch-exynos/gpio.h +++ b/arch/arm/include/asm/arch-exynos/gpio.h @@ -657,6 +657,94 @@ static inline unsigned int s5p_gpio_part_max(int nr) void gpio_cfg_pin(int gpio, int cfg); void gpio_set_pull(int gpio, int mode); void gpio_set_drv(int gpio, int mode); + +#include <common.h> + +static inline int name_to_gpio(const char *name) +{ + int num; + + name++; + + if (*name == 'p') { + ++name; + + switch (*name) { + case 'a': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_A00 + num; + break; + case 'b': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_B00 + num; + break; + case 'c': + name++; + num = simple_strtoul(name, NULL, 10); + if (num >= 40) + num = GPIO_C40 + (num - 40); + else { + num = simple_strtoul(name, NULL, 8); + num = GPIO_C00 + num; + } + break; + case 'd': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_D00 + num; + break; + case 'y': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_Y00 + num; + break; + case 'x': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_X00 + num; + break; + case 'e': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_E00 + num; + break; + case 'f': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_F00 + num; + break; + case 'g': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_G00 + num; + break; + case 'h': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_H00 + num; + break; + case 'v': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_V00 + num; + break; + case 'z': + name++; + num = simple_strtoul(name, NULL, 8); + num = GPIO_Z0 + num; + break; + default: + return -1; + } + } else + return -1; + + return num; +} + +#define name_to_gpio(n) name_to_gpio(n) #endif
/* Pin configurations */ diff --git a/common/cmd_gpio.c b/common/cmd_gpio.c index 47eee89..450e6d1 100644 --- a/common/cmd_gpio.c +++ b/common/cmd_gpio.c @@ -16,7 +16,7 @@ #endif
enum gpio_cmd { - GPIO_INPUT, + GPIO_DIRECTION_INPUT, GPIO_SET, GPIO_CLEAR, GPIO_TOGGLE, @@ -44,7 +44,7 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
/* parse the behavior */ switch (*str_cmd) { - case 'i': sub_cmd = GPIO_INPUT; break; + case 'i': sub_cmd = GPIO_DIRECTION_INPUT; break; case 's': sub_cmd = GPIO_SET; break; case 'c': sub_cmd = GPIO_CLEAR; break; case 't': sub_cmd = GPIO_TOGGLE; break; @@ -63,7 +63,7 @@ static int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) }
/* finally, let's do it: set direction and exec command */ - if (sub_cmd == GPIO_INPUT) { + if (sub_cmd == GPIO_DIRECTION_INPUT) { gpio_direction_input(gpio); value = gpio_get_value(gpio); } else { diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h index 7b9c393..b20b8f2 100644 --- a/include/configs/exynos5250-dt.h +++ b/include/configs/exynos5250-dt.h @@ -113,6 +113,7 @@ #define CONFIG_CMD_EXT2 #define CONFIG_CMD_FAT #define CONFIG_CMD_NET +#define CONFIG_CMD_GPIO
#define CONFIG_BOOTDELAY 3 #define CONFIG_ZERO_BOOTDELAY_CHECK