That option is currently not used by any defconfig and could not be set
anymore since it became mandatory to used Kconfig when introducing new
options with U-Boot v2016.11 or commit eed921d923 ("Kconfig: Add a
whitelist of ad-hoc CONFIG options") and commit 371244cb19 ("Makefile:
Give a build error if ad-hoc CONFIG options are added").
It was also not considered when fixing build warnings in
commit 39ac34473f ("cmd_mtdparts: use 64 bits for flash size,
partition size & offset") and could probably not be compiled anyway
after commit dfe64e2c89 ("mtd: resync with Linux-3.7.1"), which
renamed some members of struct mtd_info … so it was probably broken
since then, which was U-Boot v2013.07-rc1.
However it still seems to work, see example output below:
U-Boot 2019.10-00035-g06a9b259ca-dirty (Oct 30 2019 - 14:03:44 +0100)
CPU: SAMA5D27 1G bits DDR2 SDRAM
Crystal frequency: 24 MHz
CPU clock : 492 MHz
Master clock : 164 MHz
Model: ***
DRAM: 128 MiB
NAND: 256 MiB
Loading Environment from NAND... OK
In: serial@f8020000
Out: serial@f8020000
Err: serial@f8020000
Net: eth0: ethernet@f8008000
Hit keys 'tt' to stop autoboot (3 seconds).
U-Boot> mtdparts
device nand0 <atmel_nand>, # parts = 8
#: name size net size offset mask_flags
0: bootstrap 0x00040000 0x00040000 0x00000000 1
1: uboot 0x000c0000 0x000c0000 0x00040000 1
2: env1 0x00040000 0x00040000 0x00100000 0
3: env2 0x00040000 0x00040000 0x00140000 0
4: fpga_led 0x00040000 0x00040000 0x00180000 1
5: reserved 0x00040000 0x00040000 0x001c0000 1
6: rootfs_rec 0x03200000 0x03200000 0x00200000 1
7: filesystem 0x0cc00000 0x0cb80000 (!) 0x03400000 0
active partition: nand0,0 - (bootstrap) 0x00040000 @ 0x00000000
defaults:
mtdids : nand0=atmel_nand
mtdparts: mtdparts=atmel_nand:256k(bootstrap)ro,768k(uboot)ro,256k(env1),256k(env2),256k(fpga_led)ro,256k(reserved)ro,50M(rootfs_rec)ro,-(filesystem)
Signed-off-by: Alexander Dahl <ada@thorsis.com>
672c57057f