ubootforkirkwoodsocs
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Table of Contents
U-Boot support for Kirkwood SoCs
Overview
See our U-Boot main page.
To-do list
- Initialize MAC address from I2C EEPROM.
- Merge patch “sf: macronix: disable write protection when initializing” with mainline.
- Configure GPIO LEDs.
- Enhance the default boot sequence (environment variables).
EEPROM organization
The eeprom is available for reading and writing under Linux at the pseudo file /sys/bus/i2c/devices/0-0050/eeprom. The content of the eeprom is the following:
| Offset | Meaning | Notes |
|---|---|---|
| 00..01 | Version/MAC Addresses | It indicates how many mac addresses are stored in the eeprom, it's always 00 02 (2) but only the first mac appears to be valid |
| 02..07 | Mac address | It's the mac address of your board |
| 08..13 | 2nd Mac address | Bogus mac address 01 FF FF FF FF FF |
| 14 | Power flag | 0 = wait for the button, 1 = auto power on |
| 15 | Fake sleepmode | Used by the Lacie stock initramfs, it's FD and you can ignore it |
Links
ubootforkirkwoodsocs.1316530654.txt.gz · Last modified: by 92.54.8.30
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