On 14/05/2013 06:01, Renato Frias wrote:
Add i2c2 and 3 to mx6qsabreauto board, i2c3 is multiplexed use gpio to set steering.
Signed-off-by: Renato Frias b13784@freescale.com
board/freescale/mx6qsabreauto/mx6qsabreauto.c | 50 +++++++++++++++++++++++++ include/configs/mx6qsabreauto.h | 6 +++ 2 files changed, 56 insertions(+)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index bfe4868..d6df750 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -26,12 +26,14 @@ #include <asm/errno.h> #include <asm/gpio.h> #include <asm/imx-common/iomux-v3.h> +#include <asm/imx-common/mxc_i2c.h> #include <asm/imx-common/boot_mode.h> #include <mmc.h> #include <fsl_esdhc.h> #include <miiphy.h> #include <netdev.h> #include <asm/arch/sys_proto.h> +#include <i2c.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -46,6 +48,12 @@ DECLARE_GLOBAL_DATA_PTR; #define ENET_PAD_CTRL (PAD_CTL_PUS_100K_UP | \ PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS)
+#define I2C_PAD_CTRL (PAD_CTL_PUS_100K_UP | \
- PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS | \
- PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
int dram_init(void) { gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE); @@ -76,6 +84,41 @@ iomux_v3_cfg_t const enet_pads[] = { MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), };
+/* I2C2 PMIC, iPod, Tuner, Codec, Touch, HDMI EDID, MIPI CSI2 card */ +struct i2c_pads_info i2c_pad_info1 = {
- .scl = {
.i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC,.gpio_mode = MX6_PAD_EIM_EB2__GPIO_2_30 | PC,.gp = IMX_GPIO_NR(2, 30)- },
- .sda = {
.i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,.gpio_mode = MX6_PAD_KEY_ROW3__GPIO_4_13 | PC,.gp = IMX_GPIO_NR(4, 13)- }
+};
+/*
- I2C3 MLB, Port Expanders (A, B, C), Video ADC, Light Sensor,
- Compass Sensor, Accelerometer, Res Touch
- */
+struct i2c_pads_info i2c_pad_info2 = {
- .scl = {
.i2c_mode = MX6_PAD_GPIO_3__I2C3_SCL | PC,.gpio_mode = MX6_PAD_GPIO_3__GPIO_1_3 | PC,.gp = IMX_GPIO_NR(1, 3)- },
- .sda = {
.i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,.gpio_mode = MX6_PAD_EIM_D18__GPIO_3_18 | PC,.gp = IMX_GPIO_NR(3, 18)- }
+};
+iomux_v3_cfg_t const i2c3_pads[] = {
- MX6_PAD_EIM_A24__GPIO_5_4 | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
static void setup_iomux_enet(void) { imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads)); @@ -216,6 +259,13 @@ int board_init(void) /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
- /* I2C 2 and 3 setup - I2C 3 hw mux with EIM */
- setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
- /* I2C 3 Steer */
- gpio_direction_output(IMX_GPIO_NR(5, 4), 1);
- imx_iomux_v3_setup_multiple_pads(i2c3_pads, ARRAY_SIZE(i2c3_pads));
- setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
- return 0;
}
diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h index 1583c11..947ea60 100644 --- a/include/configs/mx6qsabreauto.h +++ b/include/configs/mx6qsabreauto.h @@ -38,4 +38,10 @@ #define CONFIG_SYS_MMC_ENV_PART 1 /* Boot partition 1 */ #endif
+/* I2C Configs */ +#define CONFIG_CMD_I2C +#define CONFIG_I2C_MULTI_BUS +#define CONFIG_I2C_MXC +#define CONFIG_SYS_I2C_SPEED 100000
#endif /* __MX6QSABREAUTO_CONFIG_H */
Acked-by: Stefano Babic sbabic@denx.de
Best regards, Stefano Babic