Re: Rockchip RK3328 Rock64 HDMI

From: Klaus_Küchemann <maciphone2_at_googlemail.com>
Date: Wed, 25 Sep 2024 17:19:57 UTC
this time even without specific hack, just a config :

CONFIG_PHY_ROCKCHIP_INNO_HDMI=y
CONFIG_VIDEO=y
CONFIG_DISPLAY=y
CONFIG_VIDEO_ROCKCHIP=y
CONFIG_DISPLAY_ROCKCHIP_HDMI=y


U-boot 2024.07( I think also 2024.04) then enables the inno  hdmi_phy driver
2024.10-rc5 even shows the u-boot logo, 
t...hey seem to  still maintain the RK3328 hdmi....

-…I  will look into that GOP- thing….
If you have instructions or hints for that, plz let me know


> Am 25.09.2024 um 18:56 schrieb Emmanuel Vadot <manu@bidouilliste.com>:
> 
> On Wed, 25 Sep 2024 17:29:11 +0200
> Klaus Küchemann <maciphone2@googlemail.com> wrote:
> 
>> Needed 5 minutes to hack u-boot`s current version  to get HDMI - output on the RK3328/ Rock64..
> 
> What's the hack ?
> 


> Am 25.09.2024 um 18:56 schrieb Emmanuel Vadot <manu@bidouilliste.com>:
> 
> On Wed, 25 Sep 2024 17:29:11 +0200
> Klaus Küchemann <maciphone2@googlemail.com> wrote:
> 
>> It works because u-boot(and linux) has built in driver for the hdmi-inno phy.
>> So the dts devicetree- entries for the hdmi_phy point to that driver ( which is glued in their drm).
>> So u-boot sets up it?s framebuffer based on this driver while it cannot be handed over to FreeBSD 
>> because it`s not implemented FreeBSD (as Manu said) .
> 
> That's not what I said, if u-boot setup a GOP interface FreeBSD loader
> and kernel will be able to use it.