pico-imx6ul: Add PMIC support
Add PMIC support. Tested by command "pmic PFUZE3000 dump".
Signed-off-by: Vanessa Maegima <vanessa.maegima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
diff --git a/board/technexion/pico-imx6ul/pico-imx6ul.c b/board/technexion/pico-imx6ul/pico-imx6ul.c
index b0b8f05..5cbf803 100644
--- a/board/technexion/pico-imx6ul/pico-imx6ul.c
+++ b/board/technexion/pico-imx6ul/pico-imx6ul.c
@@ -14,13 +14,18 @@
#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/io.h>
#include <common.h>
#include <miiphy.h>
#include <netdev.h>
#include <fsl_esdhc.h>
+#include <i2c.h>
#include <linux/sizes.h>
#include <usb.h>
+#include <power/pmic.h>
+#include <power/pfuze3000_pmic.h>
+#include "../../freescale/common/pfuze.h"
DECLARE_GLOBAL_DATA_PTR;
@@ -32,6 +37,11 @@
PAD_CTL_PUS_22K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
+#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)
+
#define OTG_ID_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | \
PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_LOW | \
PAD_CTL_DSE_80ohm | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
@@ -47,6 +57,23 @@
#define RMII_PHY_RESET IMX_GPIO_NR(1, 28)
+#ifdef CONFIG_SYS_I2C_MXC
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+/* I2C2 for PMIC */
+struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_GPIO1_IO02__I2C1_SCL | PC,
+ .gpio_mode = MX6_PAD_GPIO1_IO02__GPIO1_IO02 | PC,
+ .gp = IMX_GPIO_NR(1, 2),
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_GPIO1_IO03__I2C1_SDA | PC,
+ .gpio_mode = MX6_PAD_GPIO1_IO03__GPIO1_IO03 | PC,
+ .gp = IMX_GPIO_NR(1, 3),
+ },
+};
+#endif
+
static iomux_v3_cfg_t const fec_pads[] = {
MX6_PAD_ENET1_TX_EN__ENET2_MDC | MUX_PAD_CTRL(MDIO_PAD_CTRL),
MX6_PAD_ENET1_TX_DATA1__ENET2_MDIO | MUX_PAD_CTRL(MDIO_PAD_CTRL),
@@ -182,6 +209,45 @@
return 0;
}
+#ifdef CONFIG_POWER
+#define I2C_PMIC 0
+static struct pmic *pfuze;
+int power_init_board(void)
+{
+ int ret;
+ unsigned int reg, rev_id;
+
+ ret = power_pfuze3000_init(I2C_PMIC);
+ if (ret)
+ return ret;
+
+ pfuze = pmic_get("PFUZE3000");
+ ret = pmic_probe(pfuze);
+ if (ret)
+ return ret;
+
+ pmic_reg_read(pfuze, PFUZE3000_DEVICEID, ®);
+ pmic_reg_read(pfuze, PFUZE3000_REVID, &rev_id);
+ printf("PMIC: PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
+
+ /* disable Low Power Mode during standby mode */
+ pmic_reg_read(pfuze, PFUZE3000_LDOGCTL, ®);
+ reg |= 0x1;
+ pmic_reg_write(pfuze, PFUZE3000_LDOGCTL, reg);
+
+ /* SW1B step ramp up time from 2us to 4us/25mV */
+ pmic_reg_write(pfuze, PFUZE3000_SW1BCONF, 0x40);
+
+ /* SW1B mode to APS/PFM */
+ pmic_reg_write(pfuze, PFUZE3000_SW1BMODE, 0xc);
+
+ /* SW1B standby voltage set to 0.975V */
+ pmic_reg_write(pfuze, PFUZE3000_SW1BSTBY, 0xb);
+
+ return 0;
+}
+#endif
+
int board_usb_phy_mode(int port)
{
if (port == 1)
@@ -211,6 +277,10 @@
/* 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
+
setup_fec();
setup_usb();
diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h
index f9fc263..a1e5f01 100644
--- a/include/configs/pico-imx6ul.h
+++ b/include/configs/pico-imx6ul.h
@@ -158,6 +158,18 @@
#define CONFIG_SYS_INIT_SP_ADDR \
(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+/* I2C configs */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_I2C_MXC_I2C1
+#define CONFIG_SYS_I2C_SPEED 100000
+
+/* PMIC */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
+#define CONFIG_POWER_PFUZE3000
+#define CONFIG_POWER_PFUZE3000_I2C_ADDR 0x08
+
/* FLASH and environment organization */
#define CONFIG_SYS_NO_FLASH