Implement power_init_board and related I2C interface configuration.
After adding this, uboot can successfully detect and configure pmic.
U-Boot 2015.01-00281-ge29eddf (Feb 12 2015 - 09:24:01)
CPU: Freescale i.MX6SL rev1.0 at 396 MHz
Reset cause: POR
Board: MX6SLEVK
I2C: ready
DRAM: 1 GiB
PMIC: PFUZE100 ID=0x10
MMC: FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2
Signed-off-by: Peng Fan peng@freescale.com
---
board/freescale/mx6slevk/mx6slevk.c | 42 +
1 file changed, 42 insertions(+)
diff --git a/board/freescale/mx6slevk/mx6slevk.c
b/board/freescale/mx6slevk/mx6slevk.c
index 838ea6c..c65f72b 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -13,13 +13,18 @@
#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/imx-common/spi.h
#include asm/io.h
#include linux/sizes.h
#include common.h
#include fsl_esdhc.h
+#include i2c.h
#include mmc.h
#include netdev.h
+#include power/pmic.h
+#include power/pfuze100_pmic.h
+#include ../common/pfuze.h
#include usb.h
#include usb/ehci-fsl.h
@@ -40,6 +45,11 @@ 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)
int dram_init(void)
@@ -221,6 +231,34 @@ int board_mmc_init(bd_t *bis)
return 0;
}
+#ifdef CONFIG_SYS_I2C_MXC
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+/* I2C1 for PMIC */
+struct i2c_pads_info i2c_pad_info1 = {
+ .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 power_init_board(void)
+{
+ struct pmic *p;
+
+ p = pfuze_common_init(I2C_PMIC);
+ if (!p)
+ return -ENODEV;
+
+ return pfuze_mode_init(p, APS_PFM);
+}
+#endif
+
#ifdef CONFIG_FEC_MXC
int board_eth_init(bd_t *bis)
{
@@ -297,6 +335,10 @@ int board_init(void)
/* address of boot parameters */
gd-bd-bi_boot_params = PHYS_SDRAM + 0x100;
+#ifdef CONFIG_SYS_I2C_MXC
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, i2c_pad_info1);
+#endif
+
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
--
1.8.4
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