mirror of
https://github.com/u-boot/u-boot.git
synced 2025-05-03 02:03:01 +00:00
489b965564
The new i.MX8M Plus DHCOM rev.200 is populated with M24C32-D EEPROM that contains an additional write-lockable page called ID page, which is populated with a structure containing ethernet MAC addresses, DH item number and DH serial number. Because the write-lockable page is not present on rev.100 i.MX8MP DHCOM SoM, test whether EEPROM ID page exists by setting up the i2c driver. There may be multiple EEPROMs with an ID page on this platform, always use the first one. The evaluation of the EEPROM ID page is done in two steps. First, the content is read and checked. This is done to cache the content of the EEPROM ID page. Second, the content is extracted from the EEPROM buffer by requesting it. For the ethernet MAC address the i.MX8M Plus DHCOM currently supports parsing address from multiple sources in the following priority order: 1) U-Boot environment 'ethaddr'/'eth1addr' environment variable 2) SoC OTP fuses 3) On-SoM EEPROM Add support for parsing the content of this new EEPROM ID page and place it between 2) and 3) on the priority list. The new entry is 2.5) On-SoM EEPROM write-lockable page. Signed-off-by: Christoph Niedermaier <cniedermaier@dh-electronics.com> Reviewed-by: Marek Vasut <marex@denx.de> |
||
|---|---|---|
| .. | ||
| dh_imx6.c | ||
| dh_imx6_spl.c | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||