Hi Peng,
On 15 August 2016 at 04:05, Peng Fan <van.free...@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@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
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