diff options
Diffstat (limited to 'arch/arm/mach-rockchip/rk3288-board.c')
| -rw-r--r-- | arch/arm/mach-rockchip/rk3288-board.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm/mach-rockchip/rk3288-board.c b/arch/arm/mach-rockchip/rk3288-board.c index 18fd0dcd20..a354d992da 100644 --- a/arch/arm/mach-rockchip/rk3288-board.c +++ b/arch/arm/mach-rockchip/rk3288-board.c @@ -309,3 +309,38 @@ U_BOOT_CMD( "display information about clocks", "" ); + +#define GRF_SOC_CON2 0xff77024c + +int board_early_init_f(void) +{ + struct udevice *pinctrl; + struct udevice *dev; + int ret; + + /* + * This init is done in SPL, but when chain-loading U-Boot SPL will + * have been skipped. Allow the clock driver to check if it needs + * setting up. + */ + ret = rockchip_get_clk(&dev); + if (ret) { + debug("CLK init failed: %d\n", ret); + return ret; + } + ret = uclass_get_device(UCLASS_PINCTRL, 0, &pinctrl); + if (ret) { + debug("%s: Cannot find pinctrl device\n", __func__); + return ret; + } + + /* Enable debug UART */ + ret = pinctrl_request_noflags(pinctrl, PERIPH_ID_UART_DBG); + if (ret) { + debug("%s: Failed to set up console UART\n", __func__); + return ret; + } + rk_setreg(GRF_SOC_CON2, 1 << 0); + + return 0; +} |