Problem with ssi i.mx35

MariaKuzmina — Thu, 26 Jul 2012 05:59:56 GMT

Hi everyone! I write driver for SSI and Ac97 of i.mx35. I can not update sacadd, satag and sacdat registers.

My code

void imx_ac97_write( struct wm97xx *wm9705,unsigned int reg, unsigned int val)

{

wm9705->hwc->ssi->sacadd=reg;

wm9705->hwc->ssi->sacdat=val;

wm9705->hwc->ssi->satag=0xC000;

wm9705->hwc->ssi->sacnt|=WM9705_WRITE;

wm9705->hwc->ssi->sacnt&=~WM9705_READ;

fprintf(stderr,"write :scr=0x%8X\t sacadd=0x%8X\t sacdat=0x%8X\t satag=0x%8X\t sacnt=0x%8X\t\n",in32(base+SSI_SCR),wm9705->hwc->ssi->sacadd, wm9705->hwc->ssi->sacdat,wm9705->hwc->ssi->satag,wm9705->hwc->ssi->sacnt);

usleep((useconds_t)DELAYRG);

}

int AudmuxInit(HW_CONTEXT_T * mx35_exm32, ccm_t * ccm)

{

mx35_exm32->audmux->ptcr1=0;

mx35_exm32->audmux->ptcr1=0;
mx35_exm32->audmux>ptcr1=AUDMUX_TCLK_DIROUT|AUDMUX_TFS_PORT4;

mx35_exm32->audmux>ptcr1|=AUDMUX_TCLK_PORT4|AUDMUX_SYNC;

mx35_exm32->audmux->pdcr1=AUDMUX_RXDSEL_PORT4;

mx35_exm32->audmux->ptcr4 = AUDMUX_SYNC|AUDMUX_TFS_DIROUT;

mx35_exm32->audmux->pdcr4 = 0; //

ccm->pdr2|=0x141;

ccm->cosr=0x7d00002d;

ccm->acmr|=0x11;

ccm->cosr=0x7d00002d;

mx35_exm32->ssi->scr=0;

mx35_exm32->ssi->scr|=SCR_SSI_EN;

mx35_exm32->ssi->stccr|=(1<<18);

mx35_exm32->ssi->stccr|=(9<<13);

mx35_exm32->ssi->stccr|=(12<<8);

usleep((useconds_t)DELAYRG);

mx35_exm32->ssi->sacnt=1;

mx35_exm32->ssi->scr|=SCR_TX_EN|SCR_TX_EN;

fprintf(stderr," scr=0x%8X\t",in32(base+SSI_SCR));

return 0;

}

I see always sacadd, sacdat and satag =0. WHY,

topic Problem with ssi i.mx35 in i.MX Processors

Problem with ssi i.mx35