Neo 1973 Partitions
From Openmoko
The internal flash memory is divided into partitions of several uses. The exact partition sizes are stored in the bootloader environment variable "mtdblocks", and depend on bad blocks of each device. Flashing openmoko updates partition contents.
Name | DFU# | Linux mtd# | Size | Purpose |
---|---|---|---|---|
u-boot | 1 | 0 | 256 kB | Bootloader binary |
u-boot_env | 2 | 1 | 16 kB | Checksummed bootloader config |
kernel | 3 | 2 | 2 MB | Kernel uImage binary |
splash | 4 | 3 | 640 kB | Bootloader splash screen |
rootfs | 5 | 4 | rest of the 64 MB (256MB on GTA02) | JFFS2-formatted file system |
Via DFU
memento:~# dfu-util -l dfu-util - (C) 2007 by OpenMoko Inc. This program is Free Software and has ABSOLUTELY NO WARRANTY Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=0, name="RAM 0x32000000" Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=1, name="u-boot" Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=2, name="u-boot_env" Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=3, name="kernel" Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=4, name="splash" Found DFU: [0x1457:0x5119] devnum=9, cfg=0, intf=0, alt=5, name="rootfs"
In U-Boot
- See also bootloader.
GTA01Bv4 # printenv mtdparts mtdparts=mtdparts=neo1973-nand:0x00040000(u-boot),0x00004000(u-boot_env),0x00200000(kernel),0x000a0000(splash),0x03d1c000(rootfs)
In Linux
root@fic-gta01:~$ cat /proc/mtd dev: size erasesize name mtd0: 00040000 00004000 "u-boot" mtd1: 00004000 00004000 "u-boot_env" mtd2: 00200000 00004000 "kernel" mtd3: 000a0000 00004000 "splash" mtd4: 03d1c000 00004000 "rootfs"
On my Freerunner (GTA02v5) the partitions look a bit different:
root@GTA02:~# cat /proc/mtd dev: size erasesize name mtd0: 00200000 00010000 "physmap-flash.0" mtd1: 00040000 00020000 "u-boot" mtd2: 00040000 00020000 "u-boot_env" mtd3: 00800000 00020000 "kernel" mtd4: 000a0000 00020000 "splash" mtd5: 00040000 00020000 "factory" mtd6: 0f6a0000 00020000 "rootfs"
See also (duplicate) GTA02 partitions