[U-Boot] [PATCH 2/3] imx: mx6slevk: Add I2C1 support

[Ye.Li]

Enable the MXC I2C driver for mx6slevk and setup the I2C1.

Signed-off-by: Ye.Li <B37916 at freescale.com>
---
Changes since v1:
- None

Changes since v2:
- None

Changes since v3:
- Split the I2C1 pad setting to another new patch.

 board/freescale/mx6slevk/mx6slevk.c |   26 ++++++++++++++++++++++++++
 include/configs/mx6slevk.h          |    6 ++++++
 2 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c
index a990b4c..fedd5c3 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -13,12 +13,14 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/gpio.h>
 #include <asm/imx-common/iomux-v3.h>
+#include <asm/imx-common/mxc_i2c.h>
 #include <asm/io.h>
 #include <linux/sizes.h>
 #include <common.h>
 #include <fsl_esdhc.h>
 #include <mmc.h>
 #include <netdev.h>
+#include <i2c.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -37,8 +39,29 @@ DECLARE_GLOBAL_DATA_PTR;
 #define SPI_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_SPEED_MED | \
 		      PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST)
 
+#define I2C_PAD_CTRL    (PAD_CTL_PKE | PAD_CTL_PUE |            \
+	PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED |               \
+	PAD_CTL_DSE_40ohm | PAD_CTL_HYS |			\
+	PAD_CTL_ODE | PAD_CTL_SRE_FAST)
+
 #define ETH_PHY_RESET	IMX_GPIO_NR(4, 21)
 
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+
+/* I2C1 for PMIC */
+struct i2c_pads_info i2c_pad_info0 = {
+	.sda = {
+		.i2c_mode = MX6_PAD_I2C1_SDA__I2C1_SDA | PC,
+		.gpio_mode = MX6_PAD_I2C1_SDA__GPIO_3_13 | PC,
+		.gp = IMX_GPIO_NR(3, 13),
+	},
+	.scl = {
+		.i2c_mode = MX6_PAD_I2C1_SCL__I2C1_SCL | PC,
+		.gpio_mode = MX6_PAD_I2C1_SCL__GPIO_3_12 | PC,
+		.gp = IMX_GPIO_NR(3, 12),
+	},
+};
+
 int dram_init(void)
 {
 	gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -162,6 +185,9 @@ int board_init(void)
 #ifdef	CONFIG_FEC_MXC
 	setup_fec();
 #endif
+
+	setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0);
+
 	return 0;
 }
 
diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h
index 3d05a64..bf5066f 100644
--- a/include/configs/mx6slevk.h
+++ b/include/configs/mx6slevk.h
@@ -60,6 +60,12 @@
 #define CONFIG_PHYLIB
 #define CONFIG_PHY_SMSC
 
+/* I2C Configs */
+#define CONFIG_CMD_I2C
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_I2C_SPEED		  100000
+
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 #define CONFIG_CONS_INDEX		1
-- 
1.7.4.1