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[V5,05/12] board: ti: j721s2: Enable support for reading EEPROM at next alternate address

Message ID 20230110131016.12480-6-sinthu.raja@ti.com
State Superseded
Delegated to: Tom Rini
Headers show
Series AM68: Add support for AM68 Starter Kit | expand

Commit Message

Sinthu Raja Jan. 10, 2023, 1:10 p.m. UTC 
From: Sinthu Raja <sinthu.raja@ti.com>

J721S2 EVM has EEPROM populated at 0x50. AM68 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>
Reviewed-by: Tom Rini <trini@konsulko.com>
---

Changes in V5:
=============
Add Reviewed-by tag

 board/ti/j721s2/evm.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)
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Patch

diff --git a/board/ti/j721s2/evm.c b/board/ti/j721s2/evm.c
index f223ccf2c6..a3adb8704e 100644
--- a/board/ti/j721s2/evm.c
+++ b/board/ti/j721s2/evm.c
@@ -113,9 +113,15 @@  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;
 }