[U-Boot] lcd logo color not correct

Hi 1. I have try to port u-boot to jz4740 cpu device. now the lcd can show the LOGO. but the color is not correct.

2. gd->flags |= GD_FLG_DEVINIT; /* device initialization completed */ when I comment this line. the device can boot to main_loop. when don't comment this line as normal. the system crash. give me some help about this problem

thanks.

attach is the jz_lcd.c file.