Initialize the Pfuze on I2C1 at board late init. The mx6slevk board has Pfuze100 or Pfuze200, print the chip type by parsing the ID.
Signed-off-by: Ye.Li B37916@freescale.com --- Changes since v1: - None
Changes since v2: - None
board/freescale/mx6slevk/mx6slevk.c | 57 +++++++++++++++++++++++++++++++++++ include/configs/mx6slevk.h | 7 ++++ 2 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c index fedd5c3..8b6a79c 100644 --- a/board/freescale/mx6slevk/mx6slevk.c +++ b/board/freescale/mx6slevk/mx6slevk.c @@ -21,6 +21,8 @@ #include <mmc.h> #include <netdev.h> #include <i2c.h> +#include <power/pmic.h> +#include <power/pfuze100_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -48,6 +50,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+#define I2C_PMIC 0 + /* I2C1 for PMIC */ struct i2c_pads_info i2c_pad_info0 = { .sda = { @@ -191,6 +195,59 @@ int board_init(void) return 0; }
+static int pfuze_init(void) +{ + struct pmic *p; + int ret; + unsigned int reg; + + ret = power_pfuze100_init(I2C_PMIC); + if (ret) + return ret; + + p = pmic_get("PFUZE100"); + ret = pmic_probe(p); + if (ret) + return ret; + + pmic_reg_read(p, PFUZE100_DEVICEID, ®); + printf("PMIC: PFUZE%s ID=0x%02x\n", + ((reg & 0xf) == 0) ? "100" : "200", reg); + + /* Set SW1AB stanby volage to 0.975V */ + pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®); + reg &= ~0x3f; + reg |= 0x1b; + pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg); + + /* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */ + pmic_reg_read(p, PUZE_100_SW1ABCONF, ®); + reg &= ~0xc0; + reg |= 0x40; + pmic_reg_write(p, PUZE_100_SW1ABCONF, reg); + + /* Set SW1C standby voltage to 0.975V */ + pmic_reg_read(p, PFUZE100_SW1CSTBY, ®); + reg &= ~0x3f; + reg |= 0x1b; + pmic_reg_write(p, PFUZE100_SW1CSTBY, reg); + + /* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */ + pmic_reg_read(p, PFUZE100_SW1CCONF, ®); + reg &= ~0xc0; + reg |= 0x40; + pmic_reg_write(p, PFUZE100_SW1CCONF, reg); + + return 0; +} + +int board_late_init(void) +{ + pfuze_init(); + + return 0; +} + u32 get_board_rev(void) { return get_cpu_rev(); diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h index bf5066f..09d0896 100644 --- a/include/configs/mx6slevk.h +++ b/include/configs/mx6slevk.h @@ -30,6 +30,7 @@ #define CONFIG_SYS_MALLOC_LEN (3 * SZ_1M)
#define CONFIG_BOARD_EARLY_INIT_F +#define CONFIG_BOARD_LATE_INIT #define CONFIG_MXC_GPIO
#define CONFIG_MXC_UART @@ -66,6 +67,12 @@ #define CONFIG_SYS_I2C_MXC #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 + /* allow to overwrite serial and ethaddr */ #define CONFIG_ENV_OVERWRITE #define CONFIG_CONS_INDEX 1