Hi Alison, On 1 March 2016 at 02:06, Alison Wang <b18...@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.w...@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 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
