Question about mem parameter in the bootargs

2011-08-18 Thread Carlos Roberto Moratelli
Hi, Does someone knows what is the smallest step to increase the mem parameter in the bootargs? I am running linux in an embedded system where I have a very critical memory constraint and I would like to have mem=3584k instead mem=3M or mem=4M. The Linux boot up sucessfull with mem=3M or

Re: sdhc/mpc8536 - SDCard always detected like read-only

2011-04-06 Thread Carlos Roberto Moratelli
I will try address the issue in details. When I insert the SDCard, the same is detect like read-only: mmcblk0: mmc0:b368 NCard 966 MiB (ro) mmcblk0: mmc0: starting CMD18 arg flags 00b5 mmc0: blksz 512 blocks 8 flags 0200 tsac 100 ms nsac 0 mmc0: CMD12 arg flags

Re: sdhc/mpc8536 - SDCard always detected like read-only - SOLVED.

2011-04-06 Thread Carlos Roberto Moratelli
! Thanks, Moratelli Em Qua, 2011-04-06 às 14:18 -0300, Carlos Roberto Moratelli escreveu: I will try address the issue in details. When I insert the SDCard, the same is detect like read-only: mmcblk0: mmc0:b368 NCard 966 MiB (ro) mmcblk0: mmc0: starting CMD18 arg flags 00b5 mmc0

sdhc/mpc8536 - SDCard always detected like read-only

2011-04-05 Thread Carlos Roberto Moratelli
Hello, I am working in a MPC8536e custom board. Our custom board has a slot to SDCards conected to the MPC8536e's eSDHC controller. We are using just 4-serial data pins of eSDHC controller. My kernel is 2.6.35.7 and I am using buildroot to build the root system with uClib. I can mount and read

Re: sdhc/mpc8536 - SDCard always detected like read-only

2011-04-05 Thread Carlos Roberto Moratelli
Em Ter, 2011-04-05 às 21:02 +0200, Wolfram Sang escreveu: Every idea or tip is apreciated. Please post your dts. /* * MPC8536 DS Device Tree Source * * Copyright 2008-2009 Freescale Semiconductor, Inc. * * This program is free software; you can redistribute it and/or modify it *

Doubt about Linux PCIe infraestructure

2010-09-28 Thread Carlos Roberto Moratelli
Hi, I have a simple doubt about linux PCI/PCIe infraestructure. When I register a PCI driver using pci_register_driver() will the probe function be automatically called or will it just be called if PCI infraestructure match a Vendor and Device id on bus? I am loading a PCI driver that

modprobe problem

2009-05-05 Thread Carlos Roberto Moratelli
Hello, I have a Kernel 2.6.24 running on a custom board based on mpc8313erdb. My filesystem is composed by a read-only squashfs and a read-write jffs2 filesystems. A unionfs is used to unificate the filesystems. Like you know, when a file on my read-only squasfs is modified such file is copied