From patchwork Mon Sep 24 06:49:20 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [U-Boot,3/5] EXYNOS: PINMUX: Add pinmux support for i2c Date: Sun, 23 Sep 2012 20:49:20 -0000 From: Piotr Wilczek X-Patchwork-Id: 186307 Message-Id: <1348469362-17314-4-git-send-email-p.wilczek@samsung.com> To: u-boot@lists.denx.de Cc: Piotr Wilczek , Kyungmin Park This patch add pinmux for I2C for Exynos4 Signed-off-by: Piotr Wilczek Signed-off-by: Kyungmin Park CC: Minkyu Kang --- arch/arm/cpu/armv7/exynos/pinmux.c | 51 ++++++++++++++++++++++++++++++++++++ 1 files changed, 51 insertions(+), 0 deletions(-) diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c b/arch/arm/cpu/armv7/exynos/pinmux.c index 5796d56..3ebeb1d 100644 --- a/arch/arm/cpu/armv7/exynos/pinmux.c +++ b/arch/arm/cpu/armv7/exynos/pinmux.c @@ -302,6 +302,47 @@ static int exynos4_mmc_config(int peripheral, int flags) return 0; } +static void exynos4_i2c_config(int peripheral, int flags) +{ + struct exynos4_gpio_part1 *gpio1 = + (struct exynos4_gpio_part1 *) samsung_get_base_gpio_part1(); + + switch (peripheral) { + case PERIPH_ID_I2C0: + s5p_gpio_cfg_pin(&gpio1->d1, 0, GPIO_FUNC(0x2)); + s5p_gpio_cfg_pin(&gpio1->d1, 1, GPIO_FUNC(0x2)); + break; + case PERIPH_ID_I2C1: + s5p_gpio_cfg_pin(&gpio1->d1, 2, GPIO_FUNC(0x2)); + s5p_gpio_cfg_pin(&gpio1->d1, 3, GPIO_FUNC(0x2)); + break; + case PERIPH_ID_I2C2: + s5p_gpio_cfg_pin(&gpio1->a0, 6, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a0, 7, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C3: + s5p_gpio_cfg_pin(&gpio1->a1, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->a1, 3, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C4: + s5p_gpio_cfg_pin(&gpio1->b, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->b, 3, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C5: + s5p_gpio_cfg_pin(&gpio1->b, 6, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->b, 7, GPIO_FUNC(0x3)); + break; + case PERIPH_ID_I2C6: + s5p_gpio_cfg_pin(&gpio1->c1, 3, GPIO_FUNC(0x4)); + s5p_gpio_cfg_pin(&gpio1->c1, 4, GPIO_FUNC(0x4)); + break; + case PERIPH_ID_I2C7: + s5p_gpio_cfg_pin(&gpio1->d0, 2, GPIO_FUNC(0x3)); + s5p_gpio_cfg_pin(&gpio1->d0, 3, GPIO_FUNC(0x3)); + break; + } +} + static int exynos4_pinmux_config(int peripheral, int flags) { switch (peripheral) { @@ -313,6 +354,16 @@ static int exynos4_pinmux_config(int peripheral, int flags) case PERIPH_ID_SDMMC4: printf("SDMMC device %d not implemented\n", peripheral); return -1; + case PERIPH_ID_I2C0: + case PERIPH_ID_I2C1: + case PERIPH_ID_I2C2: + case PERIPH_ID_I2C3: + case PERIPH_ID_I2C4: + case PERIPH_ID_I2C5: + case PERIPH_ID_I2C6: + case PERIPH_ID_I2C7: + exynos4_i2c_config(peripheral, flags); + break; default: debug("%s: invalid peripheral %d", __func__, peripheral); return -1;