FYI to mailing list Begin forwarded message:
> From: "Nath, Arindam" <[email protected]> > Date: March 19, 2011 9:49:18 AM PDT > To: Philip Rakity <[email protected]> > Subject: RE: SD3.0 patches V3 > > Yes, I got your point. Probably it worked before because of the bit positions > being separate. I will look into it later, once I fix the culprit which is > breaking initialization on our controller. > > Thanks, > Arindam > >> -----Original Message----- >> From: Philip Rakity [mailto:[email protected]] >> Sent: Saturday, March 19, 2011 10:14 PM >> To: Nath, Arindam >> Subject: Re: SD3.0 patches V3 >> >> >> understand but the code is wrong. No & test for a value ! Need to >> check against it. >> >>> >>> >>>> -----Original Message----- >>>> From: Philip Rakity [mailto:[email protected]] >>>> Sent: Saturday, March 19, 2011 2:16 AM >>>> To: Nath, Arindam >>>> Subject: Re: SD3.0 patches V3 >>>> >>>> >>>> Did not yet look -- but fixed this in sdhci.c === field is a value >>>> not a bit field. >>>> Also cleared added >>>> ctrl_2 &= ~SDHCI_CTRL_UHS_MASK; >>>> >>>> to ensure field is 0 before you set it. >>>> >>>> ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2); >>>> ctrl_2 &= ~SDHCI_CTRL_UHS_MASK; >>>> >>>> /* Select Bus Speed Mode for host */ >>>> if (ios->timing == MMC_TIMING_UHS_SDR25) >>>> ctrl_2 |= SDHCI_CTRL_UHS_SDR25; >>>> >>>> >>>> >>>> >>>> /* >>>> * Host Controller needs tuning only in case of SDR104 mode >>>> * and for SDR50 mode when Use Tuning for SDR50 is set in >>>> * Capabilities register. >>>> */ >>>> if ( (ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR104 || >>>> ((ctrl & SDHCI_CTRL_UHS_MASK) == SDHCI_CTRL_UHS_SDR50 && >>>> (host->flags & SDHCI_SDR50_NEEDS_TUNING))) >>>> ctrl |= SDHCI_CTRL_EXEC_TUNING; >>>> else { >>>> spin_unlock_irqrestore(&host->lock, flags); >>>> return; >>>> } >>>> >>>> >>>> >>>> add SDHCI_CTRL_UHS_MASK to sdhci.h >>>> #define SDHCI_CTRL_UHS_MASK 0x7 >>>> -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
