diff options
Diffstat (limited to 'board/freescale/imx8mn_evk/spl.c')
| -rw-r--r-- | board/freescale/imx8mn_evk/spl.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/board/freescale/imx8mn_evk/spl.c b/board/freescale/imx8mn_evk/spl.c index 5d4c2ac4c9..03f2a56e80 100644 --- a/board/freescale/imx8mn_evk/spl.c +++ b/board/freescale/imx8mn_evk/spl.c @@ -75,10 +75,15 @@ int power_init_board(void) /* BUCKxOUT_DVS0/1 control BUCK123 output */ pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29); +#ifdef CONFIG_IMX8MN_LOW_DRIVE_MODE + /* Set VDD_SOC/VDD_DRAM to 0.8v for low drive mode */ + pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x10); +#else /* increase VDD_SOC/VDD_DRAM to typical value 0.95V before first DRAM access */ + pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x1C); +#endif /* Set DVS1 to 0.85v for suspend */ /* Enable DVS control through PMIC_STBY_REQ and set B1_ENMODE=1 (ON by PMIC_ON_REQ=H) */ - pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x1C); pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x14); pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59); |