diff options
| -rw-r--r-- | drivers/power/pmic/Kconfig | 7 | ||||
| -rw-r--r-- | drivers/power/pmic/Makefile | 1 | ||||
| -rw-r--r-- | drivers/power/pmic/pmic_mc34vr500.c | 32 | ||||
| -rw-r--r-- | include/power/mc34vr500_pmic.h | 166 |
4 files changed, 206 insertions, 0 deletions
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig index 5e244c8741..e7cc4053a4 100644 --- a/drivers/power/pmic/Kconfig +++ b/drivers/power/pmic/Kconfig @@ -164,3 +164,10 @@ config PMIC_LP873X ---help--- The LP873X is a PMIC containing couple of LDOs and couple of SMPS. This driver binds the pmic children. + +config POWER_MC34VR500 + bool "Enable driver for Freescale MC34VR500 PMIC" + ---help--- + The MC34VR500 is used in conjunction with the FSL T1 and LS1 series + SoC. It provides 4 buck DC-DC convertors and 5 LDOs, and it is accessed + via an I2C interface. diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile index b4ac7d26d0..8615939785 100644 --- a/drivers/power/pmic/Makefile +++ b/drivers/power/pmic/Makefile @@ -33,3 +33,4 @@ obj-$(CONFIG_POWER_TPS65218) += pmic_tps62362.o obj-$(CONFIG_POWER_TPS65218) += pmic_tps65218.o obj-$(CONFIG_POWER_TPS65910) += pmic_tps65910.o obj-$(CONFIG_POWER_HI6553) += pmic_hi6553.o +obj-$(CONFIG_POWER_MC34VR500) += pmic_mc34vr500.o diff --git a/drivers/power/pmic/pmic_mc34vr500.c b/drivers/power/pmic/pmic_mc34vr500.c new file mode 100644 index 0000000000..db9e210ae3 --- /dev/null +++ b/drivers/power/pmic/pmic_mc34vr500.c @@ -0,0 +1,32 @@ +/* + * Copyright 2016 Freescale Semiconductor, Inc. + * Hou Zhiqiang <Zhiqiang.Hou@freescale.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#include <common.h> +#include <errno.h> +#include <i2c.h> +#include <power/pmic.h> +#include <power/mc34vr500_pmic.h> + +int power_mc34vr500_init(unsigned char bus) +{ + static const char name[] = "MC34VR500"; + struct pmic *p = pmic_alloc(); + + if (!p) { + printf("%s: POWER allocation error!\n", __func__); + return -ENOMEM; + } + + p->name = name; + p->interface = PMIC_I2C; + p->number_of_regs = MC34VR500_NUM_OF_REGS; + p->hw.i2c.addr = MC34VR500_I2C_ADDR; + p->hw.i2c.tx_num = 1; + p->bus = bus; + + return 0; +} diff --git a/include/power/mc34vr500_pmic.h b/include/power/mc34vr500_pmic.h new file mode 100644 index 0000000000..df4985ace7 --- /dev/null +++ b/include/power/mc34vr500_pmic.h @@ -0,0 +1,166 @@ +/* + * Copyright 2016 Freescale Semiconductor, Inc. + * Hou Zhiqiang <Zhiqiang.Hou@freescale.com> + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef __MC34VR500_H_ +#define __MC34VR500_H_ + +#include <power/pmic.h> + +#define MC34VR500_I2C_ADDR 0x08 + +/* Drivers name */ +#define MC34VR500_REGULATOR_DRIVER "mc34vr500_regulator" + +/* Register map */ +enum { + MC34VR500_DEVICEID = 0x00, + + MC34VR500_SILICONREVID = 0x03, + MC34VR500_FABID, + MC34VR500_INTSTAT0, + MC34VR500_INTMASK0, + MC34VR500_INTSENSE0, + MC34VR500_INTSTAT1, + MC34VR500_INTMASK1, + MC34VR500_INTSENSE1, + + MC34VR500_INTSTAT4 = 0x11, + MC34VR500_INTMASK4, + MC34VR500_INTSENSE4, + + MC34VR500_PWRCTL = 0x1B, + + MC34VR500_SW1VOLT = 0x2E, + MC34VR500_SW1STBY, + MC34VR500_SW1OFF, + MC34VR500_SW1MODE, + MC34VR500_SW1CONF, + MC34VR500_SW2VOLT, + MC34VR500_SW2STBY, + MC34VR500_SW2OFF, + MC34VR500_SW2MODE, + MC34VR500_SW2CONF, + + MC34VR500_SW3VOLT = 0x3C, + MC34VR500_SW3STBY, + MC34VR500_SW3OFF, + MC34VR500_SW3MODE, + MC34VR500_SW3CONF, + + MC34VR500_SW4VOLT = 0x4A, + MC34VR500_SW4STBY, + MC34VR500_SW4OFF, + MC34VR500_SW4MODE, + MC34VR500_SW4CONF, + + MC34VR500_REFOUTCRTRL = 0x6A, + + MC34VR500_LDO1CTL = 0x6D, + MC34VR500_LDO2CTL, + MC34VR500_LDO3CTL, + MC34VR500_LDO4CTL, + MC34VR500_LDO5CTL, + + MC34VR500_PAGE_REGISTER = 0x7F, + + /* Internal RAM */ + MC34VR500_SW1_VOLT = 0xA8, + MC34VR500_SW1_SEQ, + MC34VR500_SW1_CONFIG, + + MC34VR500_SW2_VOLT = 0xAC, + MC34VR500_SW2_SEQ, + MC34VR500_SW2_CONFIG, + + MC34VR500_SW3_VOLT = 0xB0, + MC34VR500_SW3_SEQ, + MC34VR500_SW3_CONFIG, + + MC34VR500_SW4_VOLT = 0xB8, + MC34VR500_SW4_SEQ, + MC34VR500_SW4_CONFIG, + + MC34VR500_REFOUT_SEQ = 0xC4, + + MC34VR500_LDO1_VOLT = 0xCC, + MC34VR500_LDO1_SEQ, + + MC34VR500_LDO2_VOLT = 0xD0, + MC34VR500_LDO2_SEQ, + + MC34VR500_LDO3_VOLT = 0xD4, + MC34VR500_LDO3_SEQ, + + MC34VR500_LDO4_VOLT = 0xD8, + MC34VR500_LDO4_SEQ, + + MC34VR500_LDO5_VOLT = 0xDC, + MC34VR500_LDO5_SEQ, + + MC34VR500_PU_CONFIG1 = 0xE0, + + MC34VR500_TBB_POR = 0xE4, + + MC34VR500_PWRGD_EN = 0xE8, + + MC34VR500_NUM_OF_REGS, +}; + +/* Registor offset based on SWxVOLT register */ +#define MC34VR500_VOLT_OFFSET 0 +#define MC34VR500_STBY_OFFSET 1 +#define MC34VR500_OFF_OFFSET 2 +#define MC34VR500_MODE_OFFSET 3 +#define MC34VR500_CONF_OFFSET 4 + +#define SW_MODE_MASK 0xf +#define SW_MODE_SHIFT 0 + +#define LDO_VOL_MASK 0xf +#define LDO_EN (1 << 4) +#define LDO_MODE_SHIFT 4 +#define LDO_MODE_MASK (1 << 4) +#define LDO_MODE_OFF 0 +#define LDO_MODE_ON 1 + +#define REFOUTEN (1 << 4) + +/* + * Regulator Mode Control + * + * OFF: The regulator is switched off and the output voltage is discharged. + * PFM: In this mode, the regulator is always in PFM mode, which is useful + * at light loads for optimized efficiency. + * PWM: In this mode, the regulator is always in PWM mode operation + * regardless of load conditions. + * APS: In this mode, the regulator moves automatically between pulse + * skipping mode and PWM mode depending on load conditions. + * + * SWxMODE[3:0] + * Normal Mode | Standby Mode | value + * OFF OFF 0x0 + * PWM OFF 0x1 + * PFM OFF 0x3 + * APS OFF 0x4 + * PWM PWM 0x5 + * PWM APS 0x6 + * APS APS 0x8 + * APS PFM 0xc + * PWM PFM 0xd + */ +#define OFF_OFF 0x0 +#define PWM_OFF 0x1 +#define PFM_OFF 0x3 +#define APS_OFF 0x4 +#define PWM_PWM 0x5 +#define PWM_APS 0x6 +#define APS_APS 0x8 +#define APS_PFM 0xc +#define PWM_PFM 0xd + +int power_mc34vr500_init(unsigned char bus); +#endif /* __MC34VR500_PMIC_H_ */ |