From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vipin KUMAR Date: Tue, 16 Mar 2010 19:07:54 +0530 Subject: [U-Boot] Peripheral multiplexing in devices Message-ID: <4B9F89B2.8040101@st.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi All, This is with regards to the pad multiplexing in devices. SPEAr SoCs support pin multiplexing(in hardware) to support multiple peripherals by selecting a particular mode from a list of ten modes and then selecting one of the two peripherals which can both be supported in that mode. I hope I am clear :) Now, we want to support this in sw in such a way that we have a single image for linux for all possible configurations. We intend to do this though bootloader (u-boot in this case) SPEAr has an arm platform and linux-arm doesn't seem to support peripheral multiplexing in the way we want. Though, I could see some stuff fo that kind in ppc platform supported by u-boot to pass device information to linux Do we have a similar way for arm based platforms as well or any other suggestions. Regards Vipin