Date: Thu, 7 Jun 2007 09:49:10 +0200 (CEST) From: =?iso-8859-1?Q?Bj=F6rn_K=F6nig?= <bkoenig@alpha-tierchen.de> To: arm@freebsd.org Subject: 4-bit SD Card mode Message-ID: <50503.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181202550.squirrel@webmail.alpha-tierchen.de>
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Hello, I think lot of you know the message 'Setting controller bus width to 1' in conjunction with AT91 SD Card interfaces. I'd like to suggest to disable this message in src/arm/at91/at91_mci.c for two reasons: 1) it occurs excessively and 2) there is no useful information content with this message. Since it is improbable that the driver ever supports the 4-bit mode we also don't need to be informed whether we use 1-bit or 4-bit mode. It is improbable (unless somebody is already working on it) because the 4-bit mode requires either polling or a very special interrupt handling that is not covered by the publicly available simplified SD Card specifications. Regards Björnhelp