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From: | Gianluca Valentino |
Subject: | RE: [Ltib] Cannot boot rootfs from SD card LPC 3131 |
Date: | Wed, 3 Mar 2010 08:59:00 +0100 |
Dear Mr Wells, Thanks for your reply. What is the file exactly called? I found nothing related to it in the files section. I tried different SD card jumper configurations and rootdelay as you said, but without success. Exactly the same output results. I am trying this configuration with root=/dev/mmcblk0p1 because I would like that any changes to files I make while running linux on the board are then saved permanently somewhere. I've already tried using NAND flash but although I could write apex, kernel image and rootfs to NAND, I could not boot using root=/dev/mtdblock0 or root=/dev/mtdblock1. This is strange since these devices are actually showing up during boot as shown in my output from the console. Thanks and regards, Gianluca From: address@hidden To: address@hidden; address@hidden; address@hidden Date: Wed, 3 Mar 2010 00:26:58 +0100 Subject: RE: [Ltib] Cannot boot rootfs from SD card LPC 3131
Hi Gianluca,
lpc313x_mmc lpc313x_mmc.0: LPC313x MMC controller at irq 26 It looks like the MMC driver is being loaded correctly, but I don't see the card insertion messages or the card initialization is delayed.
Try swapping the card detect jumper next to the SD card slot to see if it helps. If it doesn't, there is a patch at the lpc3000 Yahoo news group that improves, or possibly fixes, SD card detection.
You may also have to delay root filesystem mount to allow the SD card a little time to initialize. Try adding rootdelay=3 to the linux command line and adjust as necessary if the SD card init is falling behind the mount attempts.
Good luck! Kevin
From: address@hidden [mailto:address@hidden On Behalf Of Gianluca Valentino
Many thanks for your reply, I have included support for MMC/SD using the following: Hotmail: Powerful Free email with security by Microsoft. Get it now. Your E-mail and More On-the-Go. Get Windows Live Hotmail Free. Sign up now. |
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