[U-Boot] How to change partition sizes in Uboot

[Haris Papadopoulos]

Hi,

I use embedded yocto to build a real time linux environment on a board. The
kernel rootfs and bootloader are stored on nand flash, on a different
partition each.

When I type in the bootloader

mtdparts

I observe the following:

=> mtdparts

device nand0 <gpmi-nand>, # parts = 7
 #: name        size        offset      mask_flags
 0: bootloader          0x00300000  0x00000000  0
 1: environment         0x00100000  0x00300000  0
 2: safe                0x00100000  0x00400000  0
 3: linux               0x00e00000  0x00500000  0
 4: recovery            0x00e00000  0x01300000  0
 5: rootfs              0x08000000  0x02100000  0
 6: update              0x05f00000  0x0a100000  0

active partition: nand0,0 - (bootloader) 0x00300000 @ 0x00000000

defaults:
mtdids  : nand0=gpmi-nand
mtdparts: mtdparts=gpmi-nand:3m(bootloader),1m(environment),1m(safe),14m(linux),14m(recovery),128m(rootfs),-(update)

I can modify this by typing

setenv mtdparts
'mtdparts=gpmi-nand:3m(bootloader),1m(environment),1m(safe),14m(linux),14m(recovery),112m(rootfs),-(update)'


How can I modify this by modifying the uboot code?

Thanks
-- 
Haris Papadopoulos| AmberBox | Software Engineer
haris at amberbox.com <tomas at amberbox.com> | + 1 650-686-0230