i.MX6DL: mamoj: Add I2C support

i.MX6DL Mamoj has i2c3 and i2c4 buses, add support
through DM_I2C with dt definition.

i2c log:
Reviewed-by: Stefano Babic <sbabic@denx.de>
=======
=> i2c bus
Bus 2:  i2c@021a8000
Bus 3:  i2c@021f8000
=> i2c dev 2
Setting bus to 2
=> i2c speed 400000
Setting bus speed to 400000 Hz
=> i2c probe
Valid chip addresses: 20 51 53
=> i2c md 53 0xff
00ff: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff    ................
=> i2c md 51 0xff
00ff: a8 08 40 50 09 43 46 52 42 18 80 8e ae a9 d0 53    ..@P.CFRB......S
=> i2c dev 3
Setting bus to 3
=> i2c speed 100000
Setting bus speed to 100000 Hz
=> i2c probe
Valid chip addresses: 08 40 48 4B
=> i2c md 08 0xff
00ff: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Simone CIANNI <simone.cianni@bticino.it>
Signed-off-by: Raffaele RECALCATI <raffaele.recalcati@bticino.it>

diff --git a/arch/arm/dts/imx6dl-mamoj.dts b/arch/arm/dts/imx6dl-mamoj.dts
index 068d518de31018c885200182851a4a166761d2b8..558043445bbdd7d3d39ae5b7c03729b3873a8cca 100644 (file)
--- a/arch/arm/dts/imx6dl-mamoj.dts
+++ b/arch/arm/dts/imx6dl-mamoj.dts
@@ -21,6 +21,20 @@
        status = "okay";
 };
 
+&i2c3 {
+       clock-frequency = <400000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c3>;
+       status = "okay";
+};
+
+&i2c4 {
+       clock-frequency = <100000>;
+       pinctrl-names = "default";
+       pinctrl-0 = <&pinctrl_i2c4>;
+       status = "okay";
+};
+
 &uart3 {
        pinctrl-names = "default";
        pinctrl-0 = <&pinctrl_uart3>;
@@ -60,6 +74,20 @@
                >;
        };
 
+       pinctrl_i2c3: i2c3grp {
+               fsl,pins = <
+                       MX6QDL_PAD_GPIO_3__I2C3_SCL     0x4001b8b1
+                       MX6QDL_PAD_GPIO_6__I2C3_SDA     0x4001b8b1
+               >;
+       };
+
+       pinctrl_i2c4: i2c4grp {
+               fsl,pins = <
+                       MX6QDL_PAD_GPIO_7__I2C4_SCL     0x4001b8b1
+                       MX6QDL_PAD_GPIO_8__I2C4_SDA     0x4001b8b1
+               >;
+       };
+
        pinctrl_uart3: uart3grp {
                fsl,pins = <
                        MX6QDL_PAD_EIM_D24__UART3_TX_DATA       0x1b0b1

diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig
index 8f469c42069a9764b391eec9acf7b2cbc95d6c1c..b09e8f1d74c4374fb9f0040416c13612a6dcc96a 100644 (file)
--- a/arch/arm/mach-imx/mx6/Kconfig
+++ b/arch/arm/mach-imx/mx6/Kconfig
@@ -228,6 +228,7 @@ config TARGET_MX6DL_MAMOJ
        select DM
        select DM_ETH
        select DM_GPIO
+       select DM_I2C
        select DM_MMC
        select DM_THERMAL
        select SPL

diff --git a/configs/imx6dl_mamoj_defconfig b/configs/imx6dl_mamoj_defconfig
index e45ca9a05ad2144202086c46820f0543deea5461..e2a18d2c30395f934f26393f5c645787b1ac68cf 100644 (file)
--- a/configs/imx6dl_mamoj_defconfig
+++ b/configs/imx6dl_mamoj_defconfig
@@ -12,6 +12,7 @@ CONFIG_SYS_PROMPT="=> "
 CONFIG_CRC32_VERIFY=y
 CONFIG_CMD_MEMTEST=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
@@ -37,3 +38,4 @@ CONFIG_USB_GADGET_VENDOR_NUM=0x0525
 CONFIG_USB_GADGET_PRODUCT_NUM=0xa4a5
 CONFIG_CI_UDC=y
 CONFIG_IMX_THERMAL=y
+CONFIG_SYS_I2C_MXC=y