[U-Boot] [PATCH] ls102xa: dm: serial: Disable CONFIG_DM_STDIO for LCD/HDMI display

[Simon Glass]

Hi Alison,

On 1 March 2016 at 02:06, Alison Wang <b18965 at freescale.com> wrote:
> When LCD/HDMI is connected to LS1021ATWR or LS1021AQDS, the console
> output should be shown on the monitor.
>
> If CONFIG_DM_SERIAL and CONFIG_DM_STDIO are both enabled, serial device
> is registered and added to the stdio list in serial-uclass.c. Then, vga
> device will be registered and added to the stdio list in cfb_console.c.
> So serial device is at the head of the stdio list and will be chosen as
> the input and output device in console_init_r(). It will cause the
> console output can't be shown on the monitor.
>
> If CONFIG_DM_STDIO is disabled when using CONFIG_DM_SERIAL. First, vga
> device is registered and added to the stdio list in cfb_console.c. Then
> serial device will be registered and added to the stdio list in
> drv_system_init(). So vga device is at the head of the stdio list and
> will be chosen as the input and output device in console_init_r(). The
> console output will be shown on the monitor.
>
> The patch is to disabled CONFIG_DM_STDIO for LCD/HDMI display.
>
> Signed-off-by: Alison Wang <alison.wang at nxp.com>

Have you tried enabling CONFIG_CONSOLE_MUX?

> ---
>  include/configs/ls1021aqds.h | 4 ++++
>  include/configs/ls1021atwr.h | 4 ++++
>  2 files changed, 8 insertions(+)
>

[snip]

Regards,
Simon