diff options
Diffstat (limited to 'board/freescale/common/pfuze.c')
| -rw-r--r-- | board/freescale/common/pfuze.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/board/freescale/common/pfuze.c b/board/freescale/common/pfuze.c new file mode 100644 index 0000000000..2cd1794429 --- /dev/null +++ b/board/freescale/common/pfuze.c @@ -0,0 +1,54 @@ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <power/pmic.h> +#include <power/pfuze100_pmic.h> + +struct pmic *pfuze_common_init(unsigned char i2cbus) +{ + struct pmic *p; + int ret; + unsigned int reg; + + ret = power_pfuze100_init(i2cbus); + if (ret) + return NULL; + + p = pmic_get("PFUZE100"); + ret = pmic_probe(p); + if (ret) + return NULL; + + 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 &= ~SW1x_STBY_MASK; + reg |= SW1x_0_975V; + 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 &= ~SW1xCONF_DVSSPEED_MASK; + reg |= SW1xCONF_DVSSPEED_4US; + pmic_reg_write(p, PUZE_100_SW1ABCONF, reg); + + /* Set SW1C standby voltage to 0.975V */ + pmic_reg_read(p, PFUZE100_SW1CSTBY, ®); + reg &= ~SW1x_STBY_MASK; + reg |= SW1x_0_975V; + 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 &= ~SW1xCONF_DVSSPEED_MASK; + reg |= SW1xCONF_DVSSPEED_4US; + pmic_reg_write(p, PFUZE100_SW1CCONF, reg); + + return p; +} |
