Re: [U-Boot] [PATCH v3 16/18] board: ti: am654: Use EEPROM-based board detection

On Tue, Jun 04, 2019 at 06:08:26PM -0500, Andreas Dannenberg wrote:

The TI AM654x EVM base board and the associated daughtercards have on- board I2C-based EEPROMs containing board configuration data. Use the board detection infrastructure introduced earlier to do the following:

1. Parse the AM654x EVM base board EEPROM and populate items like board name and MAC addresses into the TI common EEPROM data structure residing in SRAM scratch space
2. Check for presence of daughter card(s) by probing the associated presence signals via an I2C-based GPIO expander. Then, if such a card is found, parse the data such as additional Ethernet MAC addresses from its on-board EEPROM and populate into U-Boot accordingly
3. Dynamically create an U-Boot ENV variable called overlay_files containing a list of daugherboard-specific DTB overlays based on daughercards found.

This patch adds support for the AM654x base board ("AM6-COMPROCEVM") as well as for the IDK ("AM6-IDKAPPEVM"), OLDI LCD ("OLDI-LCD1EVM") PCIe/USB3.0 ("SER-PCIEUSBEVM"), 2 Lane PCIe/USB2.0 ("SER-PCIE2LEVM"), and general purpuse ("AM6-GPAPPEVM") daughtercards.

Signed-off-by: Andreas Dannenberg dannenberg@ti.com Reviewed-by: Lokesh Vutla lokeshvutla@ti.com

Applied to u-boot/master, thanks!