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-rw-r--r--board/warp/warp.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/board/warp/warp.c b/board/warp/warp.c
index 21ac5e7d74..49dfdb6717 100644
--- a/board/warp/warp.c
+++ b/board/warp/warp.c
@@ -15,13 +15,17 @@
#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 <watchdog.h>
#include <fsl_esdhc.h>
+#include <i2c.h>
#include <mmc.h>
#include <usb.h>
+#include <power/pmic.h>
+#include <power/max77696_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -35,6 +39,11 @@ DECLARE_GLOBAL_DATA_PTR;
PAD_CTL_SRE_FAST | PAD_CTL_HYS | \
PAD_CTL_LVE)
+#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)
+
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -88,6 +97,45 @@ int board_usb_phy_mode(int port)
return USB_INIT_DEVICE;
}
+/* I2C1 for PMIC */
+#define I2C_PMIC 0
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+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;
+ int ret;
+ unsigned int reg;
+
+ ret = power_max77696_init(I2C_PMIC);
+ if (ret)
+ return ret;
+
+ p = pmic_get("MAX77696");
+ if (!p)
+ return -EINVAL;
+
+ ret = pmic_reg_read(p, CID, &reg);
+ if (ret)
+ return ret;
+
+ printf("PMIC: MAX77696 detected, rev=0x%x\n", reg);
+
+ return pmic_probe(p);
+}
+
int board_early_init_f(void)
{
setup_iomux_uart();
@@ -99,6 +147,8 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+ setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+
return 0;
}