[U-Boot] [PATCH 06/14] arm: mx6: cm-fx6: add hdmi console

[Nikita Kiryanov]

Hi Soeren,

On 01/14/2015 01:34 PM, Soeren Moch wrote:
>> Add support for hdmi console.
>>
>> Signed-off-by: Nikita Kiryanov <nikita at compulab.co.il>
>> Cc: Stefano Babic <sbabic at denx.de>
>> Cc: Igor Grinberg <grinberg at compulab.co.il>
>> ---
>>   board/compulab/cm_fx6/cm_fx6.c | 51
> ++++++++++++++++++++++++++++++++++++++++++
>>   include/configs/cm_fx6.h       | 15 +++++++++++++
>>   2 files changed, 66 insertions(+)
> [...]
>> +struct display_info_t const displays[] = {
>> +	{
>> +		.bus	= -1,
>> +		.addr	= 0,
>> +		.pixfmt	= IPU_PIX_FMT_RGB24,
>> +		.detect	= detect_hdmi,
>> +		.enable	= cm_fx6_enable_hdmi,
>> +		.mode	= {
>> +			.name           = "HDMI",
>> +			.refresh        = 60,
>> +			.xres           = 1024,
>> +			.yres           = 768,
>> +			.pixclock       = 40385,
>> +			.left_margin    = 220,
>> +			.right_margin   = 40,
>> +			.upper_margin   = 21,
>> +			.lower_margin   = 7,
>> +			.hsync_len      = 60,
>> +			.vsync_len      = 10,
>> +			.sync           = FB_SYNC_EXT,
>> +			.vmode          = FB_VMODE_NONINTERLACED,
>> +		}
>> +	},
>> +};
>
>
> This is not VESA compliant.
>
>
>> +static void cm_fx6_setup_display(void)
>> +{
>> +	struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *) CCM_BASE_ADDR;
>> +	int reg;
>> +
>> +	enable_ipu_clock();
>> +	imx_setup_hdmi();
>> +	reg = __raw_readl(&mxc_ccm->CCGR3);
>> +	reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK;
>> +	writel(reg, &mxc_ccm->CCGR3);
>> +}
>
>
> This will not give the correct pixel clock for a framerate of 60 frames
> per second (as probably expected).
>
> Just as a warning: Due to the non-standard video timing most hdmi
> monitors will not work. For more compatible settings please have a look
> into the tbs2910 board code.
>

Thanks for the pointer. I'll take a look at the tbs2910 code when I
expand the set of supported display presets. For now this is a
preliminary support.

-- 
Regards,
Nikita Kiryanov