diff options
| author | Rajeshwari Shinde <rajeshwari.s@samsung.com> | 2012-07-23 21:23:55 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2012-07-31 08:03:19 +0200 |
| commit | c82b050ead18081a594a66c913124b4e5e6c004c (patch) | |
| tree | e3db75bd9263b7bd2a796ac680235a2ecb009474 | |
| parent | 178239de194a0e84d07b8e48fb74cb156f654d75 (diff) | |
CONFIG: SMDK5250: I2C: Enable I2C
This enables I2C support on smdk5250.
Pinmux setting moved to board file to avoid repeated setting of
gpio lines.
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
| -rw-r--r-- | board/samsung/smdk5250/smdk5250.c | 30 | ||||
| -rw-r--r-- | include/configs/smdk5250.h | 10 |
2 files changed, 39 insertions, 1 deletions
diff --git a/board/samsung/smdk5250/smdk5250.c b/board/samsung/smdk5250/smdk5250.c index 3b078da65..fae7d6f0e 100644 --- a/board/samsung/smdk5250/smdk5250.c +++ b/board/samsung/smdk5250/smdk5250.c @@ -22,6 +22,7 @@ #include <common.h> #include <asm/io.h> +#include <i2c.h> #include <netdev.h> #include <asm/arch/cpu.h> #include <asm/arch/gpio.h> @@ -172,9 +173,36 @@ static int board_uart_init(void) return 0; } +#ifdef CONFIG_SYS_I2C_INIT_BOARD +static int board_i2c_init(void) +{ + int i, err; + + for (i = 0; i < CONFIG_MAX_I2C_NUM; i++) { + err = exynos_pinmux_config((PERIPH_ID_I2C0 + i), + PINMUX_FLAG_NONE); + if (err) { + debug("I2C%d not configured\n", (PERIPH_ID_I2C0 + i)); + return err; + } + } + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + return 0; +} +#endif + #ifdef CONFIG_BOARD_EARLY_INIT_F int board_early_init_f(void) { - return board_uart_init(); + int err; + err = board_uart_init(); + if (err) { + debug("UART init failed\n"); + return err; + } +#ifdef CONFIG_SYS_I2C_INIT_BOARD + err = board_i2c_init(); +#endif + return err; } #endif diff --git a/include/configs/smdk5250.h b/include/configs/smdk5250.h index d47881bcb..eb1466c52 100644 --- a/include/configs/smdk5250.h +++ b/include/configs/smdk5250.h @@ -193,6 +193,16 @@ #define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_LOAD_ADDR - 0x1000000) +/* I2C */ +#define CONFIG_SYS_I2C_INIT_BOARD +#define CONFIG_HARD_I2C +#define CONFIG_CMD_I2C +#define CONFIG_SYS_I2C_SPEED 100000 /* 100 Kbps */ +#define CONFIG_DRIVER_S3C24X0_I2C +#define CONFIG_I2C_MULTI_BUS +#define CONFIG_MAX_I2C_NUM 8 +#define CONFIG_SYS_I2C_SLAVE 0x0 + /* Ethernet Controllor Driver */ #ifdef CONFIG_CMD_NET #define CONFIG_SMC911X |