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EXYNOS: PINMUX: Add pinmux support for I2C

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This patch adds pinmux code for I2C.

Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Rajeshwari Shinde 2012-07-23 21:23:51 +00:00 • committed by Heiko Schocher
parent 8da3eb1b22
commit c65c05f57f
2 changed files with 60 additions and 0 deletions
arch/arm
cpu/armv7/exynos
pinmux.c
include/asm/arch-exynos
periph.h

52
arch/arm/cpu/armv7/exynos/pinmux.c
View file

@ -184,6 +184,48 @@ static void exynos5_sromc_config(int flags)
} }
} }
static void exynos5_i2c_config(int peripheral, int flags)
{
struct exynos5_gpio_part1 *gpio1 =
(struct exynos5_gpio_part1 *) samsung_get_base_gpio_part1();
switch (peripheral) {
case PERIPH_ID_I2C0:
s5p_gpio_cfg_pin(&gpio1->b3, 0, GPIO_FUNC(0x2));
s5p_gpio_cfg_pin(&gpio1->b3, 1, GPIO_FUNC(0x2));
break;
case PERIPH_ID_I2C1:
s5p_gpio_cfg_pin(&gpio1->b3, 2, GPIO_FUNC(0x2));
s5p_gpio_cfg_pin(&gpio1->b3, 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->a2, 0, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->a2, 1, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C5:
s5p_gpio_cfg_pin(&gpio1->a2, 2, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->a2, 3, GPIO_FUNC(0x3));
break;
case PERIPH_ID_I2C6:
s5p_gpio_cfg_pin(&gpio1->b1, 3, GPIO_FUNC(0x4));
s5p_gpio_cfg_pin(&gpio1->b1, 4, GPIO_FUNC(0x4));
break;
case PERIPH_ID_I2C7:
s5p_gpio_cfg_pin(&gpio1->b2, 2, GPIO_FUNC(0x3));
s5p_gpio_cfg_pin(&gpio1->b2, 3, GPIO_FUNC(0x3));
break;
}
}
static int exynos5_pinmux_config(int peripheral, int flags) static int exynos5_pinmux_config(int peripheral, int flags)
{ {
switch (peripheral) { switch (peripheral) {
@ -201,6 +243,16 @@ static int exynos5_pinmux_config(int peripheral, int flags)
case PERIPH_ID_SROMC: case PERIPH_ID_SROMC:
exynos5_sromc_config(flags); exynos5_sromc_config(flags);
break; break;
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:
exynos5_i2c_config(peripheral, flags);
break;
default: default:
debug("%s: invalid peripheral %d", __func__, peripheral); debug("%s: invalid peripheral %d", __func__, peripheral);
return -1; return -1;

8
arch/arm/include/asm/arch-exynos/periph.h
View file

@ -30,6 +30,14 @@
* *
*/ */
enum periph_id { enum periph_id {
PERIPH_ID_I2C0,
PERIPH_ID_I2C1,
PERIPH_ID_I2C2,
PERIPH_ID_I2C3,
PERIPH_ID_I2C4,
PERIPH_ID_I2C5,
PERIPH_ID_I2C6,
PERIPH_ID_I2C7,
PERIPH_ID_SDMMC0, PERIPH_ID_SDMMC0,
PERIPH_ID_SDMMC1, PERIPH_ID_SDMMC1,
PERIPH_ID_SDMMC2, PERIPH_ID_SDMMC2,