* MTD Devices
@ 2007-11-13 10:29 schardt
0 siblings, 0 replies; only message in thread
From: schardt @ 2007-11-13 10:29 UTC (permalink / raw)
To: Linux PPC Linux PPC
Hi again,
i have some problems to copy a cramfs image to flash. the situation as
follows:
cat /proc/mtd:
dev: size erasesize name
mtd0: 00180000 00010000 "kernel"
mtd1: 00280000 00010000 "rootfs"
cat /proc/partitions:
major minor #blocks name
254 0 62720 xsa
254 1 9840 xsa1
254 2 52864 xsa2
31 0 1536 mtdblock0
31 1 2560 mtdblock1
ls -l /dev/mtd*:
crw-r--r-- 1 root root 90, 0 Jan 1 00:14 /dev/mtd0
crw-r--r-- 1 root root 90, 2 Jan 1 00:21 /dev/mtd1
brw-r--r-- 1 root root 31, 0 Jan 1 00:01 /dev/mtdblock0
brw-r--r-- 1 root root 31, 1 Jan 1 00:08 /dev/mtdblock1
now, imho it is possible to make a
- eraseall /dev/mtd1 to erase the flash
- dd if=cramfs.img of=/dev/mtd1 to copy image to flash
but if i read the mtd1 device back, the flash is emtpy :(((
what is my mistake ?
Georg
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