• Luc Verhaegen's avatar
    sunxi: video: Add cfb console driver for sunxi · 7f2c521f
    Luc Verhaegen authored
    
    
    This adds a fixed mode hdmi driver for the sunxi platform. The fixed
    mode is a relatively safe 1024x768, more complete EDID handling is
    currently not provided. Only HDMI is supported today.
    
    This code is enabled when HPD detects an attached monitor.
    
    Current config is such that 8MB is shaved off at the top of the RAM.
    This avoids several memory handling issues, most significant is the fact
    that on linux on ARM you are not allowed to remap known RAM as IO. A
    clued in display driver will be able to recycle this reserved RAM in
    future though.
    
    cfbconsole was chosen as it provides the most important functionality: a
    working u-boot console, allowing for the debugging of certain issues
    without the need for a UART.
    Signed-off-by: default avatarLuc Verhaegen <libv@skynet.be>
    [hdegoede@redhat.com: Major cleanups and some small bugfixes]
    Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
    Acked-by: default avatarAnatolij Gustschin <agust@denx.de>
    Acked-by: default avatarIan Campbell <ijc@hellion.org.uk>
    7f2c521f
A13-OLinuXino_defconfig 254 Bytes