audmux setting for imx53 linux ver 2.6.35 - frame sync not routing

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audmux setting for imx53 linux ver 2.6.35 - frame sync not routing

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muhammadnadeem
Contributor II

Hi All,

I have the following configuration for port 4 and port 5, gsm_port is port 4 (gsm module as master) and dai_port is port 5 (Audio codec as slave).

  dai_ptcr |= AUDMUX_PTCR_SYN;

  gsm_ptcr |= AUDMUX_PTCR_SYN;

  gsm_pdcr |= AUDMUX_PDCR_RXDSEL(dai_port);

  dai_pdcr |= AUDMUX_PDCR_RXDSEL(gsm_port);

/* set Tx frame direction and source  gsm_port--> dai_port output */ 

  dai_ptcr |= AUDMUX_PTCR_TFSDIR;

  dai_ptcr |= AUDMUX_PTCR_TFSSEL(AUDMUX_FROM_TXFS, gsm_port);

  /* set Tx Clock direction and source gsm_port--> dai_port output */

  dai_ptcr |= AUDMUX_PTCR_TCLKDIR;

  dai_ptcr |= AUDMUX_PTCR_TCSEL(AUDMUX_FROM_TXFS, gsm_port);

My problem is that I can see the clock and data routed properly to audio codec but I cannot see the frame sync routed to the audio codec

Thanks in advance for any help with this issue

M . Nadeem

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muhammadnadeem
Contributor II

Hi All,

Actually I found out the problem. its in /arch/arm/plat-mxc/include/mach/iomux-mx53.h. Since SD2_DATA1 is daisy chain, the definition for SD2_DATA1 is wrong. See the correct one below

#define _MX53_PAD_SD2_DATA1__AUDMUX_AUD4_TXFS IOMUX_PAD(0x698, 0x30C, 3, 0x744, 0, 0) Wrong

#define _MX53_PAD_SD2_DATA1__AUDMUX_AUD4_TXFS IOMUX_PAD(0x698, 0x30C, 3, 0x744, 1, 0) Right

pastedImage_0.png

see the above screen shot

Thanks

M. Nadeem

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Yuri
NXP Employee
NXP Employee

Hello,

  Is it possible to check state of corresponding PDCR and PTCR in binary form ?


Have a great day,
Yuri

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