Re: [PATCH 3/3] MMC compatibility fix - OCR mask
From: Pierre Ossman
Date: Sat Sep 18 2004 - 06:08:13 EST
Russell King wrote:
On Sat, Sep 18, 2004 at 12:00:16PM +0200, Pierre Ossman wrote:
This patch avoids using a emtpy OCR mask for the initial power up. Since
some cards do not like a one bit-mask a routine has been added which
grows the mask to three bits (one extra bit on each side) if necessary.
As I already replied on this topic, this will not work on hosts
which support a wide range of supplies. If you send an OP_COND
command with bits set outside the MMC cards allowable range, they
go gaga.
Sorry, my bad. I was reviewing the previous discussion about this in an
attempt to find a solution. Completely missed that case. Please
disregard this patch then.
The problem still remains though. Do you know what the wide range
controller you have send when used with the manufacturer's driver?
Rgds
Pierre
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