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https://github.com/brain-hackers/u-boot-brain
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5051ff5fb0
Since the Pfuze initializations are similar on various mx6 SABRE boards. Factorize the initialization to a common function in file board/freescale/common/pfuze.c. So that all SABRE boards BSP can share the function. Signed-off-by: Ye.Li <B37916@freescale.com>
55 lines
1.3 KiB
C
55 lines
1.3 KiB
C
/*
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* Copyright 2014 Freescale Semiconductor, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <power/pmic.h>
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#include <power/pfuze100_pmic.h>
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struct pmic *pfuze_common_init(unsigned char i2cbus)
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{
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struct pmic *p;
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int ret;
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unsigned int reg;
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ret = power_pfuze100_init(i2cbus);
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if (ret)
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return NULL;
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p = pmic_get("PFUZE100");
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ret = pmic_probe(p);
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if (ret)
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return NULL;
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pmic_reg_read(p, PFUZE100_DEVICEID, ®);
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printf("PMIC: PFUZE100 ID=0x%02x\n", reg);
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/* Set SW1AB stanby volage to 0.975V */
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pmic_reg_read(p, PFUZE100_SW1ABSTBY, ®);
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reg &= ~SW1x_STBY_MASK;
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reg |= SW1x_0_975V;
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pmic_reg_write(p, PFUZE100_SW1ABSTBY, reg);
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/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
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pmic_reg_read(p, PUZE_100_SW1ABCONF, ®);
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reg &= ~SW1xCONF_DVSSPEED_MASK;
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reg |= SW1xCONF_DVSSPEED_4US;
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pmic_reg_write(p, PUZE_100_SW1ABCONF, reg);
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/* Set SW1C standby voltage to 0.975V */
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pmic_reg_read(p, PFUZE100_SW1CSTBY, ®);
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reg &= ~SW1x_STBY_MASK;
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reg |= SW1x_0_975V;
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pmic_reg_write(p, PFUZE100_SW1CSTBY, reg);
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/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
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pmic_reg_read(p, PFUZE100_SW1CCONF, ®);
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reg &= ~SW1xCONF_DVSSPEED_MASK;
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reg |= SW1xCONF_DVSSPEED_4US;
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pmic_reg_write(p, PFUZE100_SW1CCONF, reg);
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return p;
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}
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