On Thu, 10 Jan 2008 17:22:55 +0800 "Bryan Wu" <[EMAIL PROTECTED]> wrote:
> > At page 4-3 of ADSP-BF54x Blackfin(R) Processor Peripheral Hardware > Reference, there is a table which guide us the SDH controller does not > support 4-bit mode MMC card. Please found the table picture in the > attachment or get the document at: > http://www.analog.com/UploadedFiles/Associated_Docs/61460151169789ADSP_BF54x_Blackfin_Processor_Peripheral_Hardware_Reference.pdf > Ok, but this just means the controller wasn't designed with 4-bit MMC in mind. As several other "SD-only" controller have been tested with modern MMC cards without a problem, this is not sufficient to explain any problem. > > Thanks, actually we are not yet convinced by our hardware designer > why BF54x SDH does not support 4-bit MMC. > Please keep me informed on how it progresses. I'd like an at least plausible explanation, preferably also some empirical data, before I'm ready to accept Mike's patch. Rgds -- -- Pierre Ossman Linux kernel, MMC maintainer http://www.kernel.org PulseAudio, core developer http://pulseaudio.org rdesktop, core developer http://www.rdesktop.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
