[U-Boot] [PATCH 1/4] mx6cuboxi: Add HDMI output support

[Fabio Estevam]

Hi Vagrant,

On Wed, Apr 29, 2015 at 5:02 PM, Vagrant Cascadian <vagrant at aikidev.net> wrote:

> I wasn't able to test this as the HDMI TV I'm using doesn't support this
> resolution (it is admittedly ~9 years old, the closest resolution it
> does support is 1280x720 at 60). How complicated would it be to support
> multiple resolutions?

Could you try to use these VGA timings to see if your TV can handle it?

        .name           = "HDMI",
        .refresh        = 60,
        .xres           = 640,
        .yres           = 480,
        .pixclock       = 39721,
        .left_margin    = 48,
        .right_margin   = 16,
        .upper_margin   = 33,
        .lower_margin   = 10,
        .hsync_len      = 96,
        .vsync_len      = 2,
        .sync           = 0,
        .vmode          = FB_VMODE_NONINTERLACED

If it works, then you could try 1280x720 manually as well. The IPU
clocks will need to be probably changed to reach this resolution.

Currently we are not flexible with the IPU DI timings in U-boot, but
we could try to improve it in the future.

Regards,

Fabio Estevam