From cadda05a763ac5c1b844e6e9b78579ca62103cf3 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Pali=20Roh=C3=A1r?= Date: Fri, 9 Sep 2022 14:18:48 +0200 Subject: [PATCH] arm: mvebu: turris_omnia: Allow to use second serial port MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Turris Omnia has two serial ports. Both are already specified in device tree file. But U-Boot by default does not allow to use more than one serial port unless CONFIG_SERIAL_PROBE_ALL is not enabled. After enabling CONFIG_SERIAL_PROBE_ALL, U-Boot see also second serial port (but is inactive by default): => coninfo List of available devices: serial@12000 00000007 IO stdin stdout stderr serial@12100 00000007 IO To allow simultaneously to use more input / output devices it is needed to enable CONFIG_CONSOLE_MUX option. With CONFIG_CONSOLE_MUX it is possible to call: => setenv stdout 'serial@12000,serial@12100' And U-Boot output is then visible on both serial ports. Signed-off-by: Pali Rohár Reviewed-by: Stefan Roese --- configs/turris_omnia_defconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/configs/turris_omnia_defconfig b/configs/turris_omnia_defconfig index bce14cc..ba635fe 100644 --- a/configs/turris_omnia_defconfig +++ b/configs/turris_omnia_defconfig @@ -33,6 +33,7 @@ CONFIG_FIT_VERBOSE=y CONFIG_OF_BOARD_SETUP=y CONFIG_BOOTDELAY=3 CONFIG_USE_PREBOOT=y +CONFIG_CONSOLE_MUX=y CONFIG_SYS_CONSOLE_INFO_QUIET=y # CONFIG_DISPLAY_BOARDINFO is not set CONFIG_DISPLAY_BOARDINFO_LATE=y @@ -103,6 +104,7 @@ CONFIG_PINCTRL_ARMADA_38X=y CONFIG_DM_RTC=y CONFIG_RTC_ARMADA38X=y CONFIG_SCSI=y +CONFIG_SERIAL_PROBE_ALL=y CONFIG_SPL_DEBUG_UART_BASE=0xd0012000 CONFIG_DEBUG_UART_SHIFT=2 CONFIG_SYS_NS16550=y -- 2.7.4