diff options
Diffstat (limited to 'board/freescale/imx8mp_evk/spl.c')
| -rw-r--r-- | board/freescale/imx8mp_evk/spl.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/board/freescale/imx8mp_evk/spl.c b/board/freescale/imx8mp_evk/spl.c index ef14cfc..6ccf5ac 100644 --- a/board/freescale/imx8mp_evk/spl.c +++ b/board/freescale/imx8mp_evk/spl.c @@ -35,6 +35,16 @@ void spl_dram_init(void) void spl_board_init(void) { + /* + * Set GIC clock to 500Mhz for OD VDD_SOC. Kernel driver does + * not allow to change it. Should set the clock after PMIC + * setting done. Default is 400Mhz (system_pll1_800m with div = 2) + * set by ROM for ND VDD_SOC + */ + clock_enable(CCGR_GIC, 0); + clock_set_target_val(GIC_CLK_ROOT, CLK_ROOT_ON | CLK_ROOT_SOURCE_SEL(5)); + clock_enable(CCGR_GIC, 1); + puts("Normal Boot\n"); } @@ -84,6 +94,10 @@ int power_init_board(void) pmic_reg_write(p, PCA9450_BUCK1OUT_DVS1, 0x14); pmic_reg_write(p, PCA9450_BUCK1CTRL, 0x59); + /* Kernel uses OD/OD freq for SOC */ + /* To avoid timing risk from SOC to ARM,increase VDD_ARM to OD voltage 0.95v */ + pmic_reg_write(p, PCA9450_BUCK2OUT_DVS0, 0x1C); + /* set WDOG_B_CFG to cold reset */ pmic_reg_write(p, PCA9450_RESET_CTRL, 0xA1); |