From mboxrd@z Thu Jan 1 00:00:00 1970 From: Steven A. Falco Date: Wed, 06 Aug 2008 09:14:48 -0400 Subject: [U-Boot-Users] [PATCH] sequoia uarts In-Reply-To: <200808061146.08095.sr@denx.de> References: <20080801203005.BD001248BF@gemini.denx.de> <200808061146.08095.sr@denx.de> Message-ID: <4899A3C8.7070705@harris.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Stefan Roese wrote: > On Friday 01 August 2008, Wolfgang Denk wrote: > >> In message <48936FD4.3010802@harris.com> you wrote: >> >>> I have verified that the Sequoia (440EPx) does not have its UARTs >>> properly configured. The attached patch corrects this by setting three >>> bits in SDR0_PFC1 to enable 4-wire mode, and to select cts/rts >>> functionality for the UARTs. Also, I modified the GPIO settings for >>> >> We definitely do NOT want any hardware handshake on the serial >> console. Never. >> > > Ack, we don't want hardware handshake enabled in U-Boot. But if I understand > this correctly, then this patch from Steven configures the RTS/CTS lines > correctly (they are multiplexed with other signals), so that they *can* be > used by the OS if needed. It doesn't enable hardware handshake in U-Boot. > > Steven please correct me if I am wrong here. > You are correct. The patch simply configures the lines to match the schematic - it does not activate hardware handshake within U-Boot. Steve -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.denx.de/pipermail/u-boot/attachments/20080806/4056618c/attachment.htm