[PATCH] arm: mvebu: turris_omnia: Allow to use second serial port

[Stefan Roese]

On 09.09.22 14:18, Pali Rohár wrote:
> 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 at 12000 00000007 IO stdin stdout stderr
>      serial at 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 at 12000,serial at 12100'
> 
> And U-Boot output is then visible on both serial ports.
> 
> Signed-off-by: Pali Rohár <pali at kernel.org>

Reviewed-by: Stefan Roese <sr at denx.de>

Thanks,
Stefan

> ---
>   configs/turris_omnia_defconfig | 2 ++
>   1 file changed, 2 insertions(+)
> 
> diff --git a/configs/turris_omnia_defconfig b/configs/turris_omnia_defconfig
> index 4c9ec744e1b5..01dee5472200 100644
> --- a/configs/turris_omnia_defconfig
> +++ b/configs/turris_omnia_defconfig
> @@ -35,6 +35,7 @@ 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
> @@ -105,6 +106,7 @@ 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

Viele Grüße,
Stefan Roese

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