I am going through the book: mastering embedded linux programming
There is a section on U-boot.
It instructs on how to build the u-boot using the following
website: ftp://ftp.denx.de/pub/u-boot/
I used version v2015.07 as suggested by the book then went through the
process of making
a u-boot file and MLO file.
It then instructs me to do the following command: nand read 82000000 400000
200000
When I do so that it doesn't understand the command nand. I don't know if
beaglebone black does not have a nand?
I don't see the nand command in the help menu either. Any help?
Thanks!
Here is the output from ftdi:
U-Boot SPL 2015.07 (Jul 10 2016 - 15:28:27)
MMC: block number 0x100 exceeds max(0x0)
MMC: block number 0x200 exceeds max(0x0)
*** Error - No Valid Environment Area found
*** Warning - bad CRC, using default environment
reading u-boot.img
reading u-boot.img
U-Boot 2015.07 (Jul 10 2016 - 15:28:27 -0700)
Watchdog enabled
I2C: ready
DRAM: 512 MiB
MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1
*** Warning - bad CRC, using default environment
Net: <ethaddr> not set. Validating first E-fuse MAC
cpsw, usb_ether
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
Failed to mount ext2 filesystem...
** Unrecognized filesystem type **
switch to partitions #0, OK
mmc1(part 0) is current device
SD/MMC found on device 1
reading boot.scr
** Unable to read file boot.scr **
reading uEnv.txt
** Unable to read file uEnv.txt **
** File not found /boot/zImage **
## Error: "nandboot" not defined
U-Boot# nand read 82000000 400000 200000
Unknown command 'nand' - try 'help'
U-Boot#
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