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| author | Troy Kisky <troy.kisky@boundarydevices.com> | 2012-07-19 08:18:26 +0000 |
|---|---|---|
| committer | Heiko Schocher <hs@denx.de> | 2012-07-31 08:01:09 +0200 |
| commit | 9c06782863a9add2e75e940cf375ebb44a273212 (patch) | |
| tree | 4cb56a3b1cbcfd54343dc3a41896e466eef2842f | |
| parent | cc54a0f7cccf976d350801d39c406e75465ebdd1 (diff) | |
| download | u-boot-imx-9c06782863a9add2e75e940cf375ebb44a273212.zip u-boot-imx-9c06782863a9add2e75e940cf375ebb44a273212.tar.gz u-boot-imx-9c06782863a9add2e75e940cf375ebb44a273212.tar.bz2 | |
mx6qsabrelite: add i2c multi-bus support
This includes bus recovery support.
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Jason Liu <r64343@freescale.com>
| -rw-r--r-- | board/freescale/mx6qsabrelite/mx6qsabrelite.c | 50 | ||||
| -rw-r--r-- | include/configs/mx6qsabrelite.h | 6 |
2 files changed, 48 insertions, 8 deletions
diff --git a/board/freescale/mx6qsabrelite/mx6qsabrelite.c b/board/freescale/mx6qsabrelite/mx6qsabrelite.c index 34f65e9..01e5083 100644 --- a/board/freescale/mx6qsabrelite/mx6qsabrelite.c +++ b/board/freescale/mx6qsabrelite/mx6qsabrelite.c @@ -28,6 +28,7 @@ #include <asm/errno.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> #include <mmc.h> #include <fsl_esdhc.h> #include <micrel.h> @@ -77,9 +78,48 @@ iomux_v3_cfg_t uart2_pads[] = { MX6Q_PAD_EIM_D27__UART2_RXD | MUX_PAD_CTRL(UART_PAD_CTRL), }; -iomux_v3_cfg_t i2c3_pads[] = { - MX6Q_PAD_GPIO_5__I2C3_SCL | MUX_PAD_CTRL(I2C_PAD_CTRL), - MX6Q_PAD_GPIO_16__I2C3_SDA | MUX_PAD_CTRL(I2C_PAD_CTRL), +#define PC MUX_PAD_CTRL(I2C_PAD_CTRL) + +/* I2C1, SGTL5000 */ +struct i2c_pads_info i2c_pad_info0 = { + .scl = { + .i2c_mode = MX6Q_PAD_EIM_D21__I2C1_SCL | PC, + .gpio_mode = MX6Q_PAD_EIM_D21__GPIO_3_21 | PC, + .gp = GPIO_NUMBER(3, 21) + }, + .sda = { + .i2c_mode = MX6Q_PAD_EIM_D28__I2C1_SDA | PC, + .gpio_mode = MX6Q_PAD_EIM_D28__GPIO_3_28 | PC, + .gp = GPIO_NUMBER(3, 28) + } +}; + +/* I2C2 Camera, MIPI */ +struct i2c_pads_info i2c_pad_info1 = { + .scl = { + .i2c_mode = MX6Q_PAD_KEY_COL3__I2C2_SCL | PC, + .gpio_mode = MX6Q_PAD_KEY_COL3__GPIO_4_12 | PC, + .gp = GPIO_NUMBER(4, 12) + }, + .sda = { + .i2c_mode = MX6Q_PAD_KEY_ROW3__I2C2_SDA | PC, + .gpio_mode = MX6Q_PAD_KEY_ROW3__GPIO_4_13 | PC, + .gp = GPIO_NUMBER(4, 13) + } +}; + +/* I2C3, J15 - RGB connector */ +struct i2c_pads_info i2c_pad_info2 = { + .scl = { + .i2c_mode = MX6Q_PAD_GPIO_5__I2C3_SCL | PC, + .gpio_mode = MX6Q_PAD_GPIO_5__GPIO_1_5 | PC, + .gp = GPIO_NUMBER(1, 5) + }, + .sda = { + .i2c_mode = MX6Q_PAD_GPIO_16__I2C3_SDA | PC, + .gpio_mode = MX6Q_PAD_GPIO_16__GPIO_7_11 | PC, + .gp = GPIO_NUMBER(7, 11) + } }; iomux_v3_cfg_t usdhc3_pads[] = { @@ -346,7 +386,9 @@ int board_init(void) #ifdef CONFIG_MXC_SPI setup_spi(); #endif - imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads)); + setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); + setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); + setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); #ifdef CONFIG_CMD_SATA setup_sata(); diff --git a/include/configs/mx6qsabrelite.h b/include/configs/mx6qsabrelite.h index e42fe6b..0d376ba 100644 --- a/include/configs/mx6qsabrelite.h +++ b/include/configs/mx6qsabrelite.h @@ -60,11 +60,9 @@ /* I2C Configs */ #define CONFIG_CMD_I2C -#define CONFIG_HARD_I2C +#define CONFIG_I2C_MULTI_BUS #define CONFIG_I2C_MXC -#define CONFIG_SYS_I2C_BASE I2C3_BASE_ADDR -#define CONFIG_SYS_I2C_SPEED 100000 -#define CONFIG_SYS_I2C_SLAVE 0xfe +#define CONFIG_SYS_I2C_SPEED 100000 /* MMC Configs */ #define CONFIG_FSL_ESDHC |