diff options
| -rw-r--r-- | src/soc/rockchip/rk3288/rk808.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/soc/rockchip/rk3288/rk808.c b/src/soc/rockchip/rk3288/rk808.c index b763454903..d375f46483 100644 --- a/src/soc/rockchip/rk3288/rk808.c +++ b/src/soc/rockchip/rk3288/rk808.c @@ -54,6 +54,8 @@ #define RTC_CTRL_GET_TIME (1 << 6) #define RTC_CTRL_RTC_READSEL (1 << 7) +#define DCDC_ILMAX 0x90 + static int rk808_read(uint8_t reg, uint8_t *value) { return i2c_readb(CONFIG_PMIC_BUS, RK808_ADDR, reg, value); @@ -118,7 +120,7 @@ void rk808_configure_buck(int buck, int millivolts) switch (buck) { case 1: case 2: - /*base on 725mv, use 25mv step */ + /* 25mV steps. base = 29 * 25mV = 725 */ vsel = (div_round_up(millivolts, 25) - 29) * 2 + 1; assert(vsel <= 0x3f); buck_reg = BUCK1SEL + 4 * (buck - 1); @@ -129,8 +131,9 @@ void rk808_configure_buck(int buck, int millivolts) buck_reg = BUCK4SEL; break; default: - die("fault buck index!"); + die("Unknown buck index!"); } + rk808_clrsetbits(DCDC_ILMAX, 0, 3 << ((buck - 1) * 2)); rk808_clrsetbits(buck_reg, 0x3f, vsel); rk808_clrsetbits(DCDC_EN, 0, 1 << (buck - 1)); } |