imx6: isiotmx6ul: Add I2C support

Add I2C support for Engicam Is.IoT MX6UL module.

isiotmx6ul> i2c bus
Bus 0:  i2c@021a0000
Bus 1:  i2c@021a4000
isiotmx6ul> i2c dev 0
Setting bus to 0
isiotmx6ul> i2c dev
Current bus is 0
isiotmx6ul> i2c speed 100000
Setting bus speed to 100000 Hz
isiotmx6ul> i2c probe
Valid chip addresses: 00 2C 44 78
isiotmx6ul> i2c md 2C 0xff
00ff: 00 00 00 00 0f f0 01 64 ff ff 00 00 00 00 00 00    .......d........

Cc: Matteo Lisi <matteo.lisi@engicam.com>
Cc: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>

diff --git a/arch/arm/cpu/armv7/mx6/Kconfig b/arch/arm/cpu/armv7/mx6/Kconfig
index 928cdb49bc1bffb261ccabd15f55c3e9031f41f5..3de1be5b1b0f5dd199580311c77481690a172419 100644 (file)
--- a/arch/arm/cpu/armv7/mx6/Kconfig
+++ b/arch/arm/cpu/armv7/mx6/Kconfig
@@ -247,6 +247,7 @@ config TARGET_MX6UL_ISIOT
        select OF_CONTROL
        select DM
        select DM_GPIO
+       select DM_I2C
        select DM_MMC
        select DM_THERMAL
        select SUPPORT_SPL

diff --git a/configs/imx6ul_isiot_mmc_defconfig b/configs/imx6ul_isiot_mmc_defconfig
index 66eb59f5638b91e014e6c868718604452457b6d2..7a7be23a0a6fa65bb2ee659e1ed258eba5d41bd8 100644 (file)
--- a/configs/imx6ul_isiot_mmc_defconfig
+++ b/configs/imx6ul_isiot_mmc_defconfig
@@ -21,6 +21,7 @@ CONFIG_SYS_PROMPT="isiotmx6ul> "
 # CONFIG_CMD_IMLS is not set
 CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EXT2=y
@@ -29,6 +30,7 @@ CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
 # CONFIG_BLK is not set
+CONFIG_SYS_I2C_MXC=y
 # CONFIG_DM_MMC_OPS is not set
 CONFIG_PINCTRL=y
 CONFIG_PINCTRL_IMX6=y