Initialize the Pfuze100 at board late init.
Signed-off-by: Ye.Li B37916@freescale.com --- board/freescale/mx6qsabreauto/mx6qsabreauto.c | 52 ++++++++++++++++++++++++- include/configs/mx6qsabreauto.h | 6 +++ 2 files changed, 57 insertions(+), 1 deletions(-)
diff --git a/board/freescale/mx6qsabreauto/mx6qsabreauto.c b/board/freescale/mx6qsabreauto/mx6qsabreauto.c index bfb9b6a..76b024b 100644 --- a/board/freescale/mx6qsabreauto/mx6qsabreauto.c +++ b/board/freescale/mx6qsabreauto/mx6qsabreauto.c @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012 Freescale Semiconductor, Inc. + * Copyright (C) 2012-2014 Freescale Semiconductor, Inc. * * Author: Fabio Estevam fabio.estevam@freescale.com * @@ -23,6 +23,8 @@ #include <netdev.h> #include <asm/arch/sys_proto.h> #include <i2c.h> +#include <power/pmic.h> +#include <power/pfuze100_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -43,6 +45,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
+#define I2C_PMIC 1 + int dram_init(void) { gd->ram_size = (phys_size_t)CONFIG_DDR_MB * 1024 * 1024; @@ -259,6 +263,51 @@ 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: PFUZE100 ID=0x%02x\n", 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; +} + #ifdef CONFIG_CMD_BMODE static const struct boot_mode board_boot_modes[] = { /* 4 bit bus width */ @@ -272,6 +321,7 @@ int board_late_init(void) #ifdef CONFIG_CMD_BMODE add_board_boot_modes(board_boot_modes); #endif + pfuze_init();
return 0; } diff --git a/include/configs/mx6qsabreauto.h b/include/configs/mx6qsabreauto.h index e8580e6..d82563f 100644 --- a/include/configs/mx6qsabreauto.h +++ b/include/configs/mx6qsabreauto.h @@ -40,6 +40,12 @@ #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 + #define CONFIG_OF_SEPARATE #define CONFIG_DEFAULT_DEVICE_TREE imx6q-sabreauto