Date: Thu, 07 Jun 2007 13:34:56 -0600 (MDT) From: Warner Losh <imp@bsdimp.com> To: bkoenig@alpha-tierchen.de Cc: arm@freebsd.org, ticso@cicely.de Subject: Re: 4-bit SD Card mode Message-ID: <20070607.133456.74668036.imp@bsdimp.com> In-Reply-To: <49754.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181244172.squirrel@webmail.alpha-tierchen.de> References: <50392.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181235257.squirrel@webmail.alpha-tierchen.de> <20070607180946.GK16463@cicely12.cicely.de> <49754.2001:6f8:101e:0:20e:cff:fe6d:6adb.1181244172.squirrel@webmail.alpha-tierchen.de>
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I'm not sure I like this at all. The devices shouldn't be setting up the pins for that device. In some cases, they can't know how to do that, and this is one of them. The device has no way of knowing if all 4 wires are connected, or just 1 and the 'spare' lines are used for GPIO. There are similar problems with the serial ports and the ethernet. Does the boot loader you are using at least store the board ID in the place that Linux expects it? Warner
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