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linux4sam / at91bootstrap

Second level bootloader for Microchip SoC (aka AT91)
https://www.linux4sam.org/linux4sam/bin/view/Linux4SAM/AT91Bootstrap4
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sam9x60-curiosity: Parsing hardware information from EEPROM fails #169

Open LeSpocky opened 1 year ago

LeSpocky commented 1 year ago

After fixing the twi assignment in the config I get the following debug (loud) output:

EEPROM: Loading AT24xx information ...
EEPROM: BoardName | [Revid] | VendorName
EEPROM Buff:
@address: 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xa 0xb 0xc 0xd 0xe 0xf
0x304ad4: 0x20 0x4d 0x43 0x48 0x49 0x50 0x20 0x52 0x44 0x43 0x15 0x31 0x44 0x44 0x34 0x0         MCHIP RDC.1DD4.
0x304ae4: 0x0 0x0 0x53 0x41 0x4d 0x39 0x58 0x36 0x30 0x43 0x55 0x52 0x20 0x34 0x0 0x0   ..SAM9X60CUR 4..
Failed to parse the board name: D4

EEPROM: Using default information

This does not match the struct hw_info_map very well, but it would match the struct hw_info_alt_map. However the field revision_mapping at offset 0x30 which seems to encode this is 0x0 in this dump. Not sure if this is a problem of this board only or some more generic problem?