[U-Boot] fw_env.config settings for Digilent ZedBoard (Zynq 7020 Soc)

Hi,

I'm using a Digilent ZedBoard with a Xilinx Zynq 7020 SoC. The kernel is from Analog Devices and is a fork of 4.0.0 (according to the Makefile).

I am struggling to work out the fw_env.config file required to use with fw_printenv/fw_saveenv. fw_printenv continually gives me CRC error and uses the defaults.

Google hasn't provided much assistance, with some people reporting that the settings required are different to what /proc/mtd shows.

Here is info from /proc/mtd and my /etc/fw_env.config.

root@bjs:~# cat /proc/mtd

dev: size erasesize name mtd0: 00500000 00010000 "boot" mtd1: 00020000 00010000 "bootenv" mtd2: 00020000 00010000 "config" mtd3: 00a80000 00010000 "image" mtd4: 01040000 00010000 "spare"

root@bjs:~# cat /etc/fw_env.config

# Configuration file for fw_(printenv/setenv) utility. # Up to two entries are valid, in this case the redundant # environment sector is assumed present. # MTD device name Device offset Env. size Flash sector size # /dev/mtd1 0x0000 0x20000 0x40000 # /dev/mtd1 0x0000 0x20000 0x20000 # /dev/mtd1 0x0000 0x20000 0x10000 # /dev/mtd2 0x0000 0x20000 0x40000 # /dev/mtd2 0x0000 0x20000 0x20000 /dev/mtd2 0x0000 0x20000 0x10000

Does anyone have any insight into what the correct fw_env.config settings should be from the above info?

How can I find out the correct settings. Is there a command in u-boot itself which will report the correct information?

Thanks, Brendan.