[PATCH V3 04/16] board: ti: j721e: Enable support for reading EEPROM at next alternate address

[Sinthu Raja]

From: Sinthu Raja <sinthu.raja at ti.com>

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

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

Changes in V3:
Updated Commit description as per review comments.

V2: https://patchwork.ozlabs.org/project/uboot/patch/20211102140558.32460-6-sinthu.raja@ti.com/

 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 e924321557..dc1c310861 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;
 }
-- 
2.35.0