[RESEND PATCH] board: ti: common: board_detect: Fix EEPROM offset read for 1-byte

[Neha Malcom Francis]

Hi Prasanth

On 20-Oct-23 12:31 PM, Prasanth Babu Mantena wrote:
> EEPROM detection logic in ti_i2c_eeprom_get() involves reading the total
> size followed by reading 1-byte size with an offset 1. This commit fixes
> the header matching issue in commit 9f393a2d7af8 ("board: ti: common:
> board_detect: Fix EEPROM read quirk for 2-byte").
> 
> In the previous commit, the value with one offset is being read into
> offset_test, but the pointer used to match was still ep. After reading
> with an offset 1, the second byte of the header is compared with the 1-byte
> data read from EEPROM. This is taken care by comparing proper first byte
> value from the header.
> 
> Signed-off-by: Prasanth Babu Mantena <p-mantena at ti.com>
> Fixes: 9f393a2d7af8 (board: ti: common: board_detect: Fix EEPROM read quirk for 2-byte)
> ---
> Resending due to incorrect patch tag last time.
> 
>   board/ti/common/board_detect.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/board/ti/common/board_detect.c b/board/ti/common/board_detect.c
> index 9a53884c98..17fe8f8069 100644
> --- a/board/ti/common/board_detect.c
> +++ b/board/ti/common/board_detect.c
> @@ -128,7 +128,7 @@ static int __maybe_unused ti_i2c_eeprom_get(int bus_addr, int dev_addr,
>   
>   	rc = dm_i2c_read(dev, 0x1, &offset_test, sizeof(offset_test));
>   
> -	if (*((u32 *)ep) != (header & 0xFF))
> +	if (offset_test != ((header >> 8) & 0xFF))
>   		one_byte_addressing = false;
>   
>   	/* Corrupted data??? */

Thanks for catching this!

Reviewed-by: Neha Malcom Francis <n-francis at ti.com>

-- 
Thanking You
Neha Malcom Francis