From a46c5289b72f549ca037be155a48c2bfde970f58 Mon Sep 17 00:00:00 2001
From: Sinthu Raja <sinthu.raja@ti.com>
Date: Wed, 9 Feb 2022 15:06:49 +0530
Subject: [PATCH] board: ti: j721e: Enable support for reading EEPROM at next
alternate address
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@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 e15ab7614c..301afe1966 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;
}
--
2.39.5