History

dSS11-1GB

Flash Partitioning

size  desc              addr            size

2M    kernel-rescue     0x00200000      0x00000000
2M    kernel-prod       0x00200000      0x00200000
32M   rootfs-rescue     0x02000000      0x00400000
980M  rootfs-prod       0x02400000      0x3d400000
8M    config            0x3f800000      0x00800000

Updating U-Boot

Via USB

Copy .bin image to USB pen drive.

usb start
fatload usb 0:1 0x20000000 <file>
sf probe 1
sf erase 0x10000 0x60000
sf write 0x20000000 0x10000 ${filesize}

Via NFS

Copy .bin image to NFS export.

setenv autoload no
dhcp
nfs 0x20000000 <nfs.server.ip.address>:</path/to/file>
sf probe 1
sf erase 0x10000 0x60000
sf write 0x20000000 0x10000 ${filesize}

Updating Kernel

From U-Boot:

usb start
fatload usb 0:1 0x20000000 <file>
nand erase clean 0x00200000 0x00200000
nand write 0x20000000 0x00200000 0x00200000

From Linux:

flash_erase /dev/mtd1 0 0
nandwrite -p /dev/mtd1 <file>

Re-flashing RootFS

Via USB

Copy .ubi image to USB pen drive.

usb start
fatload usb 0:1 0x20000000 <file.ubi>
nand erase clean 0x02400000 0x3d400000
nand write 0x20000000 0x02400000 ${filesize}

Via NFS

Copy .ubi image to NFS export.

setenv autoload no
dhcp
nfs 0x20000000 <nfs.server.ip.address>:</path/to/file.ubi>
nand erase clean 0x02400000 0x3d400000
nand write 0x20000000 0x02400000 ${filesize}

dSS11

Flash Partitioning

size  desc              addr            size

128k  bootstrap         0x0             0x20000
256k  uboot             0x20000         0x40000
256k  uboot env         0x60000         0x40000
2M    rescue kernel     0xa0000         0x200000
2M    prod. kernel      0x002a0000      0x200000
32M   rescue rootfs     0x004a0000      0x2000000
200M  prod. rootfs      0x024a0000      0xC800000
~19MB config            0x0ECA0000      0x1360000

Installing U-Boot

This step requires a serial connection to the dSS. On startup, press a key to prevent autoboot.

usb start
fatload usb 0:1 0x20000000 <file>
nand erase clean 0x20000 0x80000
nand write 0x20000000 0x20000 0x40000

Note: you can clean only the u-boot application code by changing the size to 0x40000 which preserves the environment. This may or may not be wanted. If you wonder why you'd want this, then don't do it.

Installing Kernels

From U-Boot:

usb start
fatload usb 0:1 0x20000000 <file>
nand erase clean 0x002a0000 0x200000
nand write 0x20000000 0x002a0000 0x200000

Note that for the the address in the example is for the production kernel

From Linux:

flash_eraseall /dev/mtd4
nandwrite -p /dev/mtd4 <file>

Installing RootFSs

usb start
fatload usb 0:1 0x20000000 <file>
nand erase clean 0x024a0000 0xC800000
nand write 0x20000000 0x024a0000 ${filesize}

Note that for the the address in the example is for the production rootfs

Old partition layout (for historical consideration only)

Installing U-Boot

Put the U-Boot image on a USB stick and plug it in. At the U-Boot prompt:

usb start
fatload usb 0:1 0x20000000 aizo.uboot
nand erase clean 0x20000 0x80000
nand write 0x20000000 0x20000 0x40000

Installing a new Kernel-Image

Put the kernel-image on a USB stick and plug it in. At the U-Boot prompt:

usb start
fatload usb 0:1 0x20000000 uimage-2.6.32-r9-at91sam9g20ek.bin
nand erase clean 0xa0000 0x200000
nand write 0x20000000 0xa0000 0x200000

Installing the rootfs

Put the root file system on a USB stick and plug it in. At the U-Boot prompt:

usb start
fatload usb 0:1 0x20000000 dss-image-at91sam9g20ek.jffs2
nand erase clean 0x002a0000
nand write 0x20000000 0x002a0000 ${filesize}