[PATCH 0/4] sdhci-of: Some fixes for high-speed and 4-bit SD cards

Anton Vorontsov avorontsov at ru.mvista.com
Sat Aug 8 04:41:38 EST 2009

On Fri, Aug 07, 2009 at 08:39:40PM +0400, Anton Vorontsov wrote:
> Hi all,
> Finally I've got a bunch of SD cards to test eSDHC in various ways,
> and more importantly now I have a lot of SDHS cards. ;-)
> So, here are few fixes that make eSDHC work flawlessly on MPC83xx
> SOCs with all SD and MMC cards that I have.
> On MPC85xx (namely MPC8536 and MPC8569) SOCs there is one issue:
> the cards can be detected and read just fine, but writing doesn't
> work (no interrupts received). I'm currently investigating this.

Solved. It appears that eSDHC on MPC85xx has a normal write-protect
reporting. And eSDHC actually checks the WP pin, thus doesn't let
anybody to do any writes... I'll make some additional patches and
will send v2 soon.

Anton Vorontsov
email: cbouatmailru at gmail.com

More information about the Linuxppc-dev mailing list