Enable CONFIG_DM_SERIAL. uart and its pinmux was already marked with u-boot,dm-spl. Move preloader_console_init after spl_init to make sure driver model work. Signed-off-by: Peng Fan <peng.fan@nxp.com> Acked-by: Frieder Schrempf <frieder.schrempf@kontron.de> Reviewed-by: Fabio Estevam <festevam@denx.de> Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>