[U-Boot] dm video question

[Simon Glass]

Hi Peng,

On 15 August 2016 at 04:05, Peng Fan <van.freenix at gmail.com> wrote:
>
> Hi Simon,
>
> I am trying to coverting mxsfb.c to support dm.
>
> But met the following issue.
> "
> mxsfb_lcd_bind: Frame buffer size 200400
> Video device 'lcdif at 021c8000' cannot allocate frame buffer memory -ensure the device is set up before relocation
> "
>
> I add "u-boot, dm-pre-reloc" in dts as the following, but no help.
>

Can you check that you have that property in each node leading to the
root also? You can use fdtdump to display the tree.

Did you add a bind() method to handle the pre-relocaiton setup?

> &lcdif {
>         pinctrl-names = "default";
>         pinctrl-0 = <&pinctrl_lcdif_dat
>                      &pinctrl_lcdif_ctrl
>                      &pinctrl_lcdif_reset>;
>         display = <&display0>;
>         status = "okay";
>         u-boot,dm-pre-reloc;
>
>         display0: display {
>                 bits-per-pixel = <16>;
>                 bus-width = <24>;
>                 u-boot,dm-pre-reloc;
>                 status = "okay";
>
>                 display-timings {
>                         native-mode = <&timing0>;
>                         u-boot,dm-pre-reloc;
>                         timing0: timing0 {
>                         u-boot,dm-pre-reloc;
>                         clock-frequency = <9200000>;
>                         hactive = <480>;
>                         vactive = <272>;
>                         hfront-porch = <8>;
>                         hback-porch = <4>;
>                         hsync-len = <41>;
>                         vback-porch = <2>;
>                         vfront-porch = <4>;
>                         vsync-len = <10>;
>
>                         hsync-active = <0>;
>                         vsync-active = <0>;
>                         de-active = <1>;
>                         pixelclk-active = <0>;
>                         };
>                 };
>         };
> };

Regards,
Simon