> Reading the MPC8536E Chip Errata I saw the SDHC_WP signal polarity is
> reversed to the silicon revision 1.0.
>
> Unfortunately my prototype board is using revision 1.0. So, I asked to
> my hardware team workaround putting an extra inverter for the SDHC_WP
> signal.
>
> Now its working fine!
Wolfram,
Reading the MPC8536E Chip Errata I saw the SDHC_WP signal polarity is
reversed to the silicon revision 1.0.
Unfortunately my prototype board is using revision 1.0. So, I asked to
my hardware team workaround putting an extra inverter for the SDHC_WP
signal.
Now its working fine!
Thank
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 0
> sdhci@2e000 {
> compatible = "fsl,mpc8536-esdhc", "fsl,esdhc";
> reg = <0x2e000 0x1000>;
> interrupts = <72 0x2>;
> interrupt-parent = <&mpic>;
> /* Filled in by U-Boot */
>
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
*
> Every idea or tip is apreciated.
Please post your dts.
--
Pengutronix e.K. | Wolfram Sang|
Industrial Linux Solutions | http://www.pengutronix.de/ |
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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
