void ldo_mode_set(int ldo_bypass)
{
unsigned int value;
u32 vddarm;
struct pmic *p = pfuze;
if (!p) {
printf("No PMIC found!\n");
return;
}
/* switch to ldo_bypass mode */
if (ldo_bypass) {
prep_anatop_bypass();
/* decrease VDDARM to 1.275V */
pmic_reg_read(pfuze, PFUZE300_SW1BVOLT, &value);
value &= ~0x1f;
value |= PFUZE300_SW1AB_SETP(1275);
pmic_reg_write(pfuze, PFUZE300_SW1BVOLT, value);
set_anatop_bypass(1);
vddarm = PFUZE300_SW1AB_SETP(1175);
pmic_reg_read(pfuze, PFUZE300_SW1BVOLT, &value);
value &= ~0x1f;
value |= vddarm;
pmic_reg_write(pfuze, PFUZE300_SW1BVOLT, value);
finish_anatop_bypass();
printf("switch to ldo_bypass mode!\n");
}
}
int power_init_board(void)
{
struct pmic *p;
int ret;
unsigned int reg, rev_id;
ret = power_pfuze300_init(I2C_PMIC);
if (ret)
return ret;
p = pmic_get("PFUZE300");
ret = pmic_probe(p);
if (ret)
return ret;
pmic_reg_read(p, PFUZE300_DEVICEID, ®);
pmic_reg_read(p, PFUZE300_REVID, &rev_id);
printf("PMIC: PFUZE300 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
/* disable Low Power Mode during standby mode */
pmic_reg_read(p, PFUZE300_LDOGCTL, ®);
reg |= 0x1;
pmic_reg_write(p, PFUZE300_LDOGCTL, reg);
/* SW1A/1B mode set to APS/APS */
reg = 0x8;
pmic_reg_write(p, PFUZE300_SW1AMODE, reg);
pmic_reg_write(p, PFUZE300_SW1BMODE, reg);
/* SW1A/1B standby voltage set to 1.025V */
reg = 0xd;
pmic_reg_write(p, PFUZE300_SW1ASTBY, reg);
pmic_reg_write(p, PFUZE300_SW1BSTBY, reg);
/* decrease SW1B normal voltage to 0.975V */
pmic_reg_read(p, PFUZE300_SW1BVOLT, ®);
reg &= ~0x1f;
reg |= PFUZE300_SW1AB_SETP(975);
pmic_reg_write(p, PFUZE300_SW1BVOLT, reg);
return 0;
}
