Update instructions for MX31ADS board including NAND details.

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@3836 311d38ba-8fff-0310-9ca6-ca027cbcb966
This commit is contained in:
Robert Bradford 2008-02-20 15:11:59 +00:00
parent f845355741
commit 9c932b8a31
1 changed files with 47 additions and 4 deletions

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@ -125,11 +125,13 @@ FIXME
FreeScale iMX31ADS (mx31ads)
===========================
FIXME - needs testing
The correct serial port is the top-most female connector to the right of the
ethernet socket.
It is assumed a serial connection to the board is available (115200 8N1), a
TFTP server is available at 192.168.9.1 and the board is to be given an IP
address of 192.168.9.2. To set the IP address, run:
For uploading data to RedBoot we are going to use tftp. In this example we
assume that the tftpserver is on 192.168.9.1 and the board is on192.168.9.2.
To set the IP address, run:
ip_address -l 192.168.9.2/24 -h 192.168.9.1
@ -159,6 +161,47 @@ To load and boot a kernel from a TFTP server with the rootfs over NFS:
load -r -b 0x100000 zimage
exec -b 0x100000 -l 0x200000 -c "noinitrd console=ttymxc0,115200 root=/dev/nfs nfsroot=192.168.9.1:/mnt/nfsmx31 rw ip=192.168.9.2::192.168.9.1:255.255.255.0"
Alternative flash (NAND)
~~~~~~~~~~~ ~~~~~ ~~~~~~
The instructions above are for using the (default) NOR flash on the board,
there is also 128M of NAND flash.
It is possible to install Poky to the NAND flash which gives more space for the
rootfs.
To switch to the NAND flash:
factive NAND
This will then restart RedBoot using the NAND rather than the NOR. If you
have not used the NAND before then it is unlikely that there will be a
partition table yet. You can get the list of partitions with 'fis list'.
If this shows no partitions then you can create them with:
fis init
The output of 'fis list' should now show:
Name FLASH addr Mem addr Length Entry point
RedBoot 0xE0000000 0xE0000000 0x00040000 0x00000000
FIS directory 0xE7FF4000 0xE7FF4000 0x00003000 0x00000000
RedBoot config 0xE7FF7000 0xE7FF7000 0x00001000 0x00000000
Partitions for the kernel and rootfs need to be created:
fis create -l 0x1A0000 -e 0x00100000 kernel
fis create -l 0x5000000 -e 0x00100000 root
You may now use the instructions above for flashing. However it is important
to note that the erase block size for the NAND is different to the NOR so the
JFFS erase size will need to be changed to 0x4000
You will also need to update the kernel command line to use the correct root
filesystem. This should be '/dev/mtdblock7' if you adhere to the partitioning
scheme shown above. If this fails then you can doublecheck against the output
from the kernel when it evaluates the available mtd partitions.
Marvell PXA3xx Zylonite (zylonite)
==================================