[PATCH V2 05/17] board: ti: j721e: Enable support for reading EEPROM at next alternate address

Sinthu Raja
2021-11-02T14:23:01Z

J721E EVM has EEPROM populated at 0x50. J721E SK has EEPROM populated
at next address 0x51 in order to be compatible with RBPi. So start
looking for TI specific EEPROM at 0x50, if not found look for EEPROM at
0x51.

Signed-off-by: Sinthu Raja <sinthu.raja@ti.com>
---

No changes in V2.

board/ti/j721e/evm.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/board/ti/j721e/evm.c b/board/ti/j721e/evm.c
index 9cdb963221..989e15e666 100644
--- a/board/ti/j721e/evm.c
+++ b/board/ti/j721e/evm.c
@@ -152,9 +152,15 @@ int do_board_detect(void)

ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
CONFIG_EEPROM_CHIP_ADDRESS);
- if (ret)
- pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
- CONFIG_EEPROM_CHIP_ADDRESS, ret);
+ if (ret) {
+ printf("EEPROM not available at 0x%02x, trying to read at 0x%02x\n",
+ CONFIG_EEPROM_CHIP_ADDRESS, CONFIG_EEPROM_CHIP_ADDRESS + 1);
+ ret = ti_i2c_eeprom_am6_get_base(CONFIG_EEPROM_BUS_ADDRESS,
+ CONFIG_EEPROM_CHIP_ADDRESS + 1);
+ if (ret)
+ pr_err("Reading on-board EEPROM at 0x%02x failed %d\n",
+ CONFIG_EEPROM_CHIP_ADDRESS + 1, ret);
+ }

return ret;
}
--
2.31.1