diff mbox series

[V2,05/12] board: ti: j721s2: Enable support for reading EEPROM at next alternate address

Message ID 20221221135219.24702-6-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State Superseded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 Dec. 21, 2022, 1:52 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>
---
 board/ti/j721s2/evm.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

Comments

Tom Rini Dec. 23, 2022, 3 p.m. UTC | #1 
On Wed, Dec 21, 2022 at 07:22:12PM +0530, Sinthu Raja wrote:

> 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>
diff mbox series

Patch

diff --git a/board/ti/j721s2/evm.c b/board/ti/j721s2/evm.c
index de885085b3..88470e4d71 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;
 }