On 2023/3/30 15:58, Conor Dooley wrote:
> On Thu, Mar 30, 2023 at 09:43:10AM +0200, Krzysztof Kozlowski wrote:
>> On 29/03/2023 17:33, Walker Chen wrote:
>> > Add the tdm controller node and sound card for the StarFive JH7110 SoC.
>
>> > + compatible = "fixed-clock";
>> > + clock-output-names = "wm8960_mclk";
>> > + #clock-cells = <0>;
>> > + };
>> > +
>> > i2srx_bclk_ext: i2srx-bclk-ext-clock {
>> > compatible = "fixed-clock";
>> > clock-output-names = "i2srx_bclk_ext";
>> > @@ -375,6 +381,27 @@
>> > status = "disabled";
>> > };
>> >
>> > + tdm: tdm@10090000 {
>> > + compatible = "starfive,jh7110-tdm";
>> > + reg = <0x0 0x10090000 0x0 0x1000>;
>> > + clocks = <&syscrg JH7110_SYSCLK_TDM_AHB>,
>> > + <&syscrg JH7110_SYSCLK_TDM_APB>,
>> > + <&syscrg JH7110_SYSCLK_TDM_INTERNAL>,
>> > + <&syscrg JH7110_SYSCLK_TDM_TDM>,
>> > + <&syscrg JH7110_SYSCLK_MCLK_INNER>,
>> > + <&tdm_ext>;
>> > + clock-names = "tdm_ahb", "tdm_apb",
>> > + "tdm_internal", "tdm",
>> > + "mclk_inner", "tdm_ext";
>> > + resets = <&syscrg JH7110_SYSRST_TDM_AHB>,
>> > + <&syscrg JH7110_SYSRST_TDM_APB>,
>> > + <&syscrg JH7110_SYSRST_TDM_CORE>;
>> > + dmas = <&dma 20>, <&dma 21>;
>> > + dma-names = "rx","tx";
>> > + #sound-dai-cells = <0>;
>> > + status = "disabled";
>> > + };
>> > +
>> > stgcrg: clock-controller@10230000 {
>> > compatible = "starfive,jh7110-stgcrg";
>> > reg = <0x0 0x10230000 0x0 0x10000>;
>> > @@ -601,5 +628,12 @@
>> > #reset-cells = <1>;
>> > power-domains = <&pwrc JH7110_PD_VOUT>;
>> > };
>> > +
>> > + sound0: snd-card0 {
>>
>> 1. Why card0?
>> 2. Where is this node located? In MMIO bus? Run some basic checks on
>> your DTS before submitting upstream.
>> dtbs_check
>> dtbs W=1
>>
>> 3. Why this is even in the DTSI? This really looks wrong.
>
> Excuse me for not following here, but Walker, could you point me at
> where in the schematic for the VisionFive 2 that this wm8960 actually
> is?
> I know ~nothing about audio, but good old Google tells me that this is a
> dedicated codec chip and I was looking at [1] and could not easily find
> it on the schematic.
>
> Thanks,
> Conor.
>
> 1 https://doc-en.rvspace.org/VisionFive2/PDF/SCH_RV002_V1.2A_20221216.pdf
Hi Conor,
The TDM need work together with external codec WM8960 by plugging the raspberry pie
audio board into the 40-pin, which is found in sheet 21 of the schematic. Because the
40-pin of VisionFive2 is fully compatible with the pins of Raspberry pie audio board.
For more information of the audio board, you can take a look at the following webpage:
https://wiki.seeedstudio.com/ReSpeaker_2_Mics_Pi_HAT/
The schematic of audio board:
https://files.seeedstudio.com/wiki/MIC_HATv1.0_for_raspberrypi/src/ReSpeaker%202-Mics%20Pi%20HAT_SCH.pdf
Best regards,
Walker
