Hi,
I have an issue when attempting to access my uboot variables from within my linux distribution.
My set-up is as follows...
Cyclone V SoC with ARM Cortex A9 processor running 3.11 kernel (git revision a946a64), uboot version 2013.01.01 - only modification being to configure for QSPI boot and to add some extra environment variables.
I am running a QSPI boot configuration, my QSPI has three partitions... 1. Raw partition containing Pre-loader, device-tree and uboot 2. Kernel1 - containing initial kernel 3. Kernel2 - for future updated kernel
I have a NAND device offering UBI filesystem.
I created the fw_printenv and exported to my development board, created sym link to create fw_setenv. Also copied across the fw_env.config which looks like this (I have not modified this)...
# NOR example # MTD device name Device offset Env. size Flash sector size /dev/mtd1 0x0000 0x4000 0x4000 /dev/mtd2 0x0000 0x4000 0x4000
# MTD SPI-dataflash example # MTD device name Device offset Env. size Flash sector size #/dev/mtd5 0x4200 0x4200 #/dev/mtd6 0x4200 0x4200
# NAND example #/dev/mtd0 0x4000 0x4000 0x20000
cat /proc/mtd look like... dev: size erasesize name mtd0: 40000000 00040000 "denali-nand" mtd1: 00800000 00010000 "Flash 0 Raw Data" mtd2: 01900000 00010000 "Kernel Partition 1" mtd3: 01900000 00010000 "Kernel Partition 2"
When I attempt to run fw_printenv I get the following error message.. Warning: Bad CRC, using default environment
I'm assuming that my config file is wrong but I'm not sure how to change it. Do I need to manually workout where the environment variables are being stored? Should I have a separate environment variables image? If so how do I get that image?
Any guidance greatly appreciated :-)
Thanks
Rossco
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