i.MX ProcessorsのトピックSGTL5000

SGTL5000

jingyangxie — Mon, 22 May 2017 02:18:27 GMT

I have a imx6q custom board with using sgtl5000 for sound card ,I configed the devicetree and build the kernel 3.14.52,when I use command "aplay xxx.wav",I cound not hear any sound ,can any one give any advice ?

here are some configure:

&ssi1 {
fsl,mode = "i2s-slave";
status = "okay";
};

&audmux {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_audmux>;
status = "okay";
};

codec: sgtl5000@0a {
  compatible = "fsl,sgtl5000";
  reg = <0x0a>;
  clocks = <&clks 201>;
  VDDA-supply = <&reg_3p3v>;
  VDDIO-supply = <&reg_3p3v>;

sound {
  compatible = "fsl,imx6q-sabresd-sgtl5000",
        "fsl,imx-audio-sgtl5000";
  model = "imx6q-sabresd-sgtl5000";
  cpu-dai = <&ssi1>;
  audio-codec = <&codec>;
  audio-routing =
   "MIC_IN", "Mic Jack",
   "Mic Jack", "Mic Bias",
   "Headphone Jack", "HP_OUT";
  mux-int-port = <1>;
  mux-ext-port = <3>;
};

pinctrl_audmux: audmuxgrp {
   fsl,pins = <
    MX6QDL_PAD_CSI0_DAT7__AUD3_RXD  0x130b0
    MX6QDL_PAD_CSI0_DAT4__AUD3_TXC  0x130b0
    MX6QDL_PAD_CSI0_DAT5__AUD3_TXD  0x110b0
    MX6QDL_PAD_CSI0_DAT6__AUD3_TXFS  0x130b0
   >;
  };

Re: SGTL5000

igorpadykov — Mon, 22 May 2017 04:36:21 GMT

Hi jingyang

what bsp used in the case, please check BD bsps where sgtl5000 is well supported

Audio output selection under Linux on i.MX6 - Boundary Devices

please check with oscillosope clock signals, in particular MCLK.

Best regards
igor
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Re: SGTL5000

jingyangxie — Mon, 22 May 2017 05:30:11 GMT

Hi，igorpadkov

the bsp is 3.14.52,and the schematic is below:

Re: SGTL5000

jingyangxie — Mon, 22 May 2017 05:44:04 GMT

Re: SGTL5000

jingyangxie — Mon, 22 May 2017 08:32:59 GMT

Hi，I have check the board，the MCLK is 24MHz，I don't sure the sch is right .can you help me check it?

Re: SGTL5000

igorpadykov — Mon, 22 May 2017 10:42:44 GMT

sgtl5000 is not used on nxp i.MX6 reference boards, there are no examples for sgtl5000

with them. For sgtl5000 examples please refer to boundary devices schematic

BD-SL-i.MX6 sabre_lite-revD.pdf p.7

i.MX6 ARM Development Board

https://boundarydevices.com/wp-content/uploads/2014/11/sabre_lite-revD.pdf

use boundary devices linux kernels and choose agtl5000 settings for that board, use them

as example

Wiki - Boundary Devices

Best regards
igor