From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jerry Van Baren Date: Mon, 14 Sep 2009 11:09:33 -0400 Subject: [U-Boot] [PATCH v4 2/2] mucmc52, uc101: delete ata@3a00 node, if no CF card is detected In-Reply-To: <4AAE5C06.9070000@denx.de> References: <4AA755D4.1020207@denx.de> <20090909083837.439E4832E8DE@gemini.denx.de> <4AA7716C.3000003@denx.de> <20090909090323.D340C832E8DE@gemini.denx.de> <4AA8950B.3010501@invitel.hu> <4AAE5C06.9070000@denx.de> Message-ID: <4AAE5CAD.3000002@ge.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Heiko Schocher wrote: > U-Boot can detect, if a ide device is present or not. > If not and this new config option is activated, u-boot > removes the ata node from the DTS before booting Linux, > so the Linux IDE driver does not crash, when probing the > device. This is needed for buggy hardware (uc101) where > no pull down resistor is connected to the signal IDE5V_DD7. Nitpicking your commit comment... U-Boot can detect if an IDE device is present or not. If not, and this new config option is activated, U-Boot removes the ATA node from the DTS before booting Linux so the Linux IDE driver does not probe the device and crash. This is needed for buggy hardware (uc101) where no pull down resistor is connected to the signal IDE5V_DD7. Thanks, gvb [snip]