cgtqmx6eval has a PFUZE100 FSL PMIC connected to I2C2.
Add support for it.
Signed-off-by: Otavio Salvador <ota...@ossystems.com.br>
---
Changes in v2:
- Rework indent-level for code (Marek)
board/congatec/cgtqmx6eval/cgtqmx6eval.c | 85 ++++++++++++++++++++++++++++++++
include/configs/cgtqmx6eval.h | 13 +++++
2 files changed, 98 insertions(+)
diff --git a/board/congatec/cgtqmx6eval/cgtqmx6eval.c
b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
index 04a96e8..60e1e9a 100644
--- a/board/congatec/cgtqmx6eval/cgtqmx6eval.c
+++ b/board/congatec/cgtqmx6eval/cgtqmx6eval.c
@@ -16,11 +16,15 @@
#include <asm/gpio.h>
#include <asm/imx-common/iomux-v3.h>
#include <asm/imx-common/boot_mode.h>
+#include <asm/imx-common/mxc_i2c.h>
#include <malloc.h>
#include <mmc.h>
#include <fsl_esdhc.h>
#include <miiphy.h>
#include <netdev.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/pfuze100_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -38,6 +42,13 @@ DECLARE_GLOBAL_DATA_PTR;
PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | \
PAD_CTL_DSE_40ohm | 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 | PAD_CTL_SRE_FAST)
+
+#define MX6Q_QMX6_PFUZE_MUX IMX_GPIO_NR(6, 9)
+
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@@ -140,6 +151,78 @@ static iomux_v3_cfg_t enet_pads_ar8035[] = {
MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL),
};
+#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+struct i2c_pads_info i2c_pad_info1 = {
+ .scl = {
+ .i2c_mode = MX6_PAD_KEY_COL3__I2C2_SCL | PC,
+ .gpio_mode = MX6_PAD_KEY_COL3__GPIO4_IO12 | PC,
+ .gp = IMX_GPIO_NR(4, 12)
+ },
+ .sda = {
+ .i2c_mode = MX6_PAD_KEY_ROW3__I2C2_SDA | PC,
+ .gpio_mode = MX6_PAD_KEY_ROW3__GPIO4_IO13 | PC,
+ .gp = IMX_GPIO_NR(4, 13)
+ }
+};
+
+#define I2C_PMIC 1 /* I2C2 port is used to connect to the PMIC */
+
+struct interface_level {
+ char *name;
+ uchar value;
+};
+
+static struct interface_level mipi_levels[] = {
+ {"0V0", 0x00},
+ {"2V5", 0x17},
+};
+
+/* setup board specific PMIC */
+int power_init_board(void)
+{
+ struct pmic *p;
+ u32 id1, id2, i;
+ int ret;
+ char const *lv_mipi;
+
+ /* configure I2C multiplexer */
+ gpio_direction_output(MX6Q_QMX6_PFUZE_MUX, 1);
+
+ power_pfuze100_init(I2C_PMIC);
+ p = pmic_get("PFUZE100");
+ if (!p)
+ return -EINVAL;
+
+ ret = pmic_probe(p);
+ if (ret)
+ return ret;
+
+ pmic_reg_read(p, PFUZE100_DEVICEID, &id1);
+ pmic_reg_read(p, PFUZE100_REVID, &id2);
+ printf("PFUZE100 Rev. [%02x/%02x] detected\n", id1, id2);
+
+ if (id2 >= 0x20)
+ return 0;
+
+ /* set level of MIPI if specified */
+ lv_mipi = getenv("lv_mipi");
+ if (lv_mipi)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(mipi_levels); i++) {
+ if (!strcmp(mipi_levels[i].name, lv_mipi)) {
+ printf("set MIPI level %s\n",
+ mipi_levels[i].name);
+ ret = pmic_reg_write(p, PFUZE100_VGEN4VOL,
+ mipi_levels[i].value);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
int board_eth_init(bd_t *bis)
{
struct phy_device *phydev;
@@ -390,6 +473,8 @@ int board_init(void)
/* address of boot parameters */
gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+ setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
+
return 0;
}
diff --git a/include/configs/cgtqmx6eval.h b/include/configs/cgtqmx6eval.h
index f031940..df22534 100644
--- a/include/configs/cgtqmx6eval.h
+++ b/include/configs/cgtqmx6eval.h
@@ -64,6 +64,19 @@
#define CONFIG_MXC_OCOTP
#endif
+/* I2C Configs */
+#define CONFIG_CMD_I2C
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_I2C_MXC_I2C2 /* enable I2C bus 2 */
+#define CONFIG_SYS_I2C_SPEED 100000
+
+/* PMIC */
+#define CONFIG_POWER
+#define CONFIG_POWER_I2C
+#define CONFIG_POWER_PFUZE100
+#define CONFIG_POWER_PFUZE100_I2C_ADDR 0x08
+
#define CONFIG_DEFAULT_FDT_FILE "imx6q-congatec.dtb"
#define CONFIG_EXTRA_ENV_SETTINGS \
--
2.4.5
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
