Using the TMPA900 CPU Boards

TMPA900 Instructions for U-Boot and Linux

A brief introduction about how to use te Glyn TMPA900-CPU-Board devices with Linux and U-Boot.
We are going to replace all contents of the NAND flash - so make sure to have a backup if there is any valuable data on your device. For now we assume you have U-Boot installed on your device already.

What we need

Binary Linux kit from here.
PC running Linux
Ethernet connection from your baseboard to the PC
Serial cable
SDK and Sources (optional)

Working with U-Boot

Configure Ethernet

setenv ipaddr <your IP address>
setenv serverip <your TFTP server IP address>

Install a new kernel

tftp 0x40600000 uImage
nand erase 0x80000 0x300000
nand write 0x40600000 0x80000 0x300000

Erase the environment

Erasing the environment resets all U-Boot configuration setting to their defaults. This is useful if you upgraded U-Boot from an old release.

U-Boot> nand erase 0x60000 0x20000

...

Some additional information

U-Boot partition layout

Using a JTAG

OpenOCD configuration

Bootstrapping without a working bootloader

Building Linux

References

[1] Downloads for TPA900 Boards: http://mucross.com/downloads/tonga-linux/

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