From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from kuber.nabble.com (kuber.nabble.com [216.139.236.158]) by ozlabs.org (Postfix) with ESMTP id 8C303DDF14 for ; Sat, 12 Jul 2008 23:48:15 +1000 (EST) Received: from isper.nabble.com ([192.168.236.156]) by kuber.nabble.com with esmtp (Exim 4.63) (envelope-from ) id 1KHfSO-0003oL-QB for linuxppc-embedded@ozlabs.org; Sat, 12 Jul 2008 06:48:12 -0700 Message-ID: <18419614.post@talk.nabble.com> Date: Sat, 12 Jul 2008 06:48:12 -0700 (PDT) From: Alex_SYS To: linuxppc-embedded@ozlabs.org Subject: LIME on MPC5200B ioremap problem MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hello, I have an MPC5200B with Linux and an Grafic Chip Lime on the LPB ! The Lime is configured under U-Boot und works very fine in 800x480x16 bit colors. In Linux I adapted the Virtual Framebuffer driver! There are only three things necessary: 1: check_mem (0xE0000000, 750kB) ->thats OK 2: io__mem_request(0xE0000000, 750kB) ->thats OK , too 3_ioremap(0xE0000000, 750kB) ->thats OK , too 3: write Io request to framebuffers screen_base The Kernel with Grafics output works fine with 800x350 resolution or 580x480 and so on. But when I use 800x480, the screen output is OK, But the kernel crashes with custom trace stop. I have found out that it must be a ioremap failure, because it has to do with the space i request! It works fine if the mem_remap is under 546kB! Exactly it is not the space, but the upper adress! Because ioremap(0xE00000860, 500kB) crashes also the Kernel! It seems like ioremap can`t give me the adresses upper (0xE00000000+546kB)=0xE00088B80 ? What can be the problem? Kernel 2.6.23-rt5 with 16MB Flash and 64MB RAM Thanks very much! -- View this message in context: http://www.nabble.com/LIME-on-MPC5200B-ioremap-problem-tp18419614p18419614.html Sent from the linuxppc-embedded mailing list archive at Nabble.com.