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authorPeng Fan <Peng.Fan@freescale.com>2015-02-12 09:36:29 +0800
committerStefano Babic <sbabic@denx.de>2015-02-23 09:11:41 +0100
commitaf38bf6b38eab53343afda2ad124682b27d82e64 (patch)
tree8809419cb31517fe679c684397bdf2c42af08ed7 /board
parentc82009058bd9d3fd9774cab36e9d89434f9563f4 (diff)
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imx:mx6slevk implement power init board
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.Fan@freescale.com>
Diffstat (limited to 'board')
-rw-r--r--board/freescale/mx6slevk/mx6slevk.c42
1 files changed, 42 insertions, 0 deletions
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