From mboxrd@z Thu Jan 1 00:00:00 1970 From: Beomho Seo Date: Thu, 20 Mar 2014 13:14:30 +0900 Subject: [U-Boot] [PATCH v3 2/4] arm: exynos: pinmux: add sdmmc4 gpio configratuion Message-ID: <532A6B26.303@samsung.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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 Signed-off-by: Jaehoon Chung Tested-by: Piotr Wilczek Cc: Lukasz Majewski Cc: Piotr Wilczek Cc: Minkyu Kang --- Changes for v3: - Set bank_ext of SDMMC2 for prevent compile warning. Changes for v2: - Fixed value initialinse. - Comment add in function. 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); s5p_gpio_set_pull(bank, i, GPIO_PULL_NONE); s5p_gpio_set_drv(bank, i, GPIO_DRV_4X); } + /* SDMMC2 do not use 8bit mode@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: -- 1.7.9.5