Dear Beonho and Jaehoon,
On 11/04/14 14:55, Jaehoon Chung wrote:
From: Beomho Seo beomho.seo@samsung.com
For use dwmmc controller at exynos4, add SDMMC4 gpio configuration. In case SDMMC2, do not use 8 bit mode at exynos4.
Signed-off-by: Beomho Seo beomho.seo@samsung.com Signed-off-by: Jaehoon Chung jh80.chung@samsung.com Tested-by: Piotr Wilczek p.wilczek@samsung.com Cc: Lukasz Majewski l.majewski@samsung.com Cc: Piotr Wilczek p.wilczek@samsung.com Cc: Minkyu Kang mk7.kang@samsung.com
arch/arm/cpu/armv7/exynos/pinmux.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-)
diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index 9edb475..55c1c95 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -632,16 +632,27 @@ static int exynos4_mmc_config(int peripheral, int flags) struct exynos4_gpio_part2 *gpio2 = (struct exynos4_gpio_part2 *)samsung_get_base_gpio_part2(); struct s5p_gpio_bank *bank, *bank_ext;
unsigned int func, func_ext; int i;
switch (peripheral) { case PERIPH_ID_SDMMC0: bank = &gpio2->k0; bank_ext = &gpio2->k1;
func = GPIO_FUNC(0x2);func_ext = GPIO_FUNC(0x3);break; case PERIPH_ID_SDMMC2: bank = &gpio2->k2; bank_ext = &gpio2->k3;
func = GPIO_FUNC(0x2);func_ext = GPIO_FUNC(0x3);break;case PERIPH_ID_SDMMC4:
bank = &gpio2->k0;bank_ext = &gpio2->k1;func = GPIO_FUNC(0x3);func_ext = GPIO_FUNC(0x4);break; default: return -1;
@@ -649,13 +660,14 @@ static int exynos4_mmc_config(int peripheral, int flags) for (i = 0; i < 7; i++) { if (i == 2) continue;
s5p_gpio_cfg_pin(bank, i, GPIO_FUNC(0x2));
s5p_gpio_cfg_pin(bank, i, func);- /* SDMMC2 do not use 8bit mode at exynos4 */ if (flags & PINMUX_FLAG_8BIT_MODE) { for (i = 3; i < 7; i++) {
s5p_gpio_cfg_pin(bank_ext, i, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(bank_ext, i, func_ext); s5p_gpio_set_pull(bank_ext, i, GPIO_PULL_NONE); s5p_gpio_set_drv(bank_ext, i, GPIO_DRV_4X);@@ -722,10 +734,10 @@ static int exynos4_pinmux_config(int peripheral, int flags) break; case PERIPH_ID_SDMMC0: case PERIPH_ID_SDMMC2:
- case PERIPH_ID_SDMMC4: return exynos4_mmc_config(peripheral, flags); case PERIPH_ID_SDMMC1: case PERIPH_ID_SDMMC3:
- case PERIPH_ID_SDMMC4: debug("SDMMC device %d not implemented\n", peripheral); return -1; default:
Since GIPO API was changed, please rebase this patch.
Thanks, Minkyu Kang.