[U-Boot] [PATCH 3/8] EXYNOS: PINMUX: Add pinmux support for I2C

[Simon Glass]

On Fri, May 18, 2012 at 5:12 AM, Rajeshwari Shinde <rajeshwari.s at samsung.com
> wrote:

> This patch adds pinmux code for I2C.
>
> Signed-off-by: Leela Krishna Amudala <l.krishna at samsung.com>
> Signed-off-by: Rajeshwari Shinde <rajeshwari.s at samsung.com>
>

Acked-by: Simon Glass <sjg at chromium.org>


> ---
> This patch depends on the following patch:
> "[U-Boot] [PATCH 1/2] exynos5: pinmux: Added default pinumx settings"
>  arch/arm/cpu/armv7/exynos/pinmux.c        |   32
> +++++++++++++++++++++++++++++
>  arch/arm/include/asm/arch-exynos/pinmux.h |    8 +++++++
>  2 files changed, 40 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/cpu/armv7/exynos/pinmux.c
> b/arch/arm/cpu/armv7/exynos/pinmux.c
> index 11f4b71..103bcbb 100644
> --- a/arch/arm/cpu/armv7/exynos/pinmux.c
> +++ b/arch/arm/cpu/armv7/exynos/pinmux.c
> @@ -170,6 +170,38 @@ int exynos5_pinmux_config(int peripheral, int flags)
>                        s5p_gpio_set_pull(&gpio1->y6, i, GPIO_PULL_UP);
>                }
>                break;
> +       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;
>        default:
>                debug("%s: invalid peripheral %d", __func__, peripheral);
>                return -1;
> diff --git a/arch/arm/include/asm/arch-exynos/pinmux.h
> b/arch/arm/include/asm/arch-exynos/pinmux.h
> index 306f521..b3b7f80 100644
> --- a/arch/arm/include/asm/arch-exynos/pinmux.h
> +++ b/arch/arm/include/asm/arch-exynos/pinmux.h
> @@ -30,6 +30,14 @@
>  *
>  */
>  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_SDMMC1,
>        PERIPH_ID_SDMMC2,
> --
> 1.7.4.4
>
>