Enable the MXC I2C driver for mx6slevk and setup the I2C1.
Signed-off-by: Ye.Li <b37...@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
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