Dear Rajeshwari Shinde,
On 03/04/13 20:54, Rajeshwari Shinde wrote:
> 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
>
> Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
> ---
> Changes in V2:
> - New patch
> Changes in V3:
> - Created a table to know the base address of input bank.
> Changes in V4:
> - Moved the function name_to_gpio to s5p gpio driver and
> renamed to s5p_name_to_gpio.
> Changes in V5:
> - Rebased on latest u-boot-samsung tree
> arch/arm/include/asm/arch-exynos/gpio.h | 8 +++++
> drivers/gpio/s5p_gpio.c | 49
> +++++++++++++++++++++++++++++++
> include/configs/exynos5250-dt.h | 1 +
> 3 files changed, 58 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/include/asm/arch-exynos/gpio.h
> b/arch/arm/include/asm/arch-exynos/gpio.h
> index d8000af..9b31dc2 100644
> --- a/arch/arm/include/asm/arch-exynos/gpio.h
> +++ b/arch/arm/include/asm/arch-exynos/gpio.h
> @@ -660,6 +660,14 @@ static inline unsigned int get_bank_num(void)
> return 0;
> }
>
> +struct gpio_name_num_table {
> + char bank;
> + unsigned int base;
> +};
> +
> +int s5p_name_to_gpio(const char *name);
> +#define name_to_gpio(n) s5p_name_to_gpio(n)
> +
> void gpio_cfg_pin(int gpio, int cfg);
> void gpio_set_pull(int gpio, int mode);
> void gpio_set_drv(int gpio, int mode);
> diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c
> index d6650c3..824977b 100644
> --- a/drivers/gpio/s5p_gpio.c
> +++ b/drivers/gpio/s5p_gpio.c
> @@ -36,6 +36,21 @@
> #define RATE_MASK(x) (0x1 << (x + 16))
> #define RATE_SET(x) (0x1 << (x + 16))
>
> +struct gpio_name_num_table exynos5_gpio_table[] = {
> + { 'a', EXYNOS5_GPIO_A00 },
> + { 'b', EXYNOS5_GPIO_B00 },
> + { 'c', EXYNOS5_GPIO_C00 },
> + { 'd', EXYNOS5_GPIO_D00 },
> + { 'y', EXYNOS5_GPIO_Y00 },
> + { 'x', EXYNOS5_GPIO_X00 },
> + { 'e', EXYNOS5_GPIO_E00 },
> + { 'f', EXYNOS5_GPIO_F00 },
> + { 'g', EXYNOS5_GPIO_G00 },
> + { 'h', EXYNOS5_GPIO_H00 },
> + { 'v', EXYNOS5_GPIO_V00 },
> + { 'z', EXYNOS5_GPIO_Z0 },
> +};
> +
> void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg)
> {
> unsigned int value;
> @@ -238,3 +253,37 @@ void gpio_cfg_pin(int gpio, int cfg)
> s5p_gpio_cfg_pin(s5p_gpio_get_bank(gpio),
> s5p_gpio_get_pin(gpio), cfg);
> }
> +
> +int s5p_name_to_gpio(const char *name)
> +{
> + unsigned int num, i;
> +
> + name++;
Maybe you missing my comments on V3 patch.
Please check.
http://lists.denx.de/pipermail/u-boot/2013-February/146206.html
> +
> + if (*name == 'p')
> + ++name;
> +
> + for (i = 0; i < ARRAY_SIZE(exynos5_gpio_table); i++) {
> + if (*name == exynos5_gpio_table[i].bank) {
> + if (*name == 'c') {
> + name++;
> + num = simple_strtoul(name, NULL, 10);
> + if (num >= 40) {
> + num = EXYNOS5_GPIO_C40 + (num - 40);
> + } else {
> + num = simple_strtoul(name, NULL, 8);
> + num = exynos5_gpio_table[i].base + num;
> + }
> + } else {
> + name++;
> + num = simple_strtoul(name, NULL, 8);
> + num = exynos5_gpio_table[i].base + num;
> + }
> + break;
> + }
> + }
> +
> + if (i == ARRAY_SIZE(exynos5_gpio_table))
> + return -1;
> + return num;
> +}
> diff --git a/include/configs/exynos5250-dt.h b/include/configs/exynos5250-dt.h
> index cbd1c4e..46a4e75 100644
> --- a/include/configs/exynos5250-dt.h
> +++ b/include/configs/exynos5250-dt.h
> @@ -122,6 +122,7 @@
> #define CONFIG_CMD_FAT
> #define CONFIG_CMD_NET
> #define CONFIG_CMD_HASH
> +#define CONFIG_CMD_GPIO
>
> #define CONFIG_BOOTDELAY 3
> #define CONFIG_ZERO_BOOTDELAY_CHECK
>
Thanks,
Minkyu Kang.
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
