UART pinctrl for serial is typically applied multiple times: - in TPL for DEBUG_UART in board_debug_uart_init() - in SPL for DEBUG_UART in board_debug_uart_init() - in SPL using pinctrl from DT - in pre-reloc phase using pinctrl from DT - after relocation using pinctrl from DT
Skip including UART pinctrl for the pre-reloc phase to save time during boot. After this a warning may be shown with LOGLEVEL=5 (or higher), it is safe to ignore this warning as device probe is successful even when pinctrl cannot be applied: ns16550_serial serial@ff160000: pinctrl_select_state_full: uclass_get_device_by_phandle_id: err=-19 Signed-off-by: Jonas Karlman <jo...@kwiboo.se> --- arch/arm/dts/px30-u-boot.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/dts/px30-u-boot.dtsi b/arch/arm/dts/px30-u-boot.dtsi index 3dc70d4e432b..2a0e85d92a2a 100644 --- a/arch/arm/dts/px30-u-boot.dtsi +++ b/arch/arm/dts/px30-u-boot.dtsi @@ -38,7 +38,8 @@ }; &uart2m0_xfer { - bootph-all; + bootph-pre-sram; + bootph-pre-ram; }; &uart5 { -- 2.45.2