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boards/esp32s3: Fix MAC address byte order in LAN9250 driver

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Fix MAC address byte order by reversing 6 bytes after reading
from eFuse. Adjust offset logic to apply after byte reversal,
ensuring Ethernet MAC is base_mac +3. Comply with Espressif's
MAC address generation specification for ESP32S3

Signed-off-by: nuttxs <zhaoqing.zhang@sony.com>
This commit is contained in:
nuttxs 2026-03-10 10:58:58 +08:00 • committed by Alin Jerpelea
parent a8495b118c
commit 097cc8c8a6
1 changed files with 6 additions and 1 deletions
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7
boards/xtensa/esp32s3/common/src/esp32s3_lan9250.c
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@ -188,8 +188,8 @@ static int lan9250_getmac(const struct lan9250_lower_s *lower, uint8_t *mac)
{
int fd;
int ret;
#ifndef CONFIG_ESP32S3_UNIVERSAL_MAC_ADDRESSES_FOUR
int i;
#ifndef CONFIG_ESP32S3_UNIVERSAL_MAC_ADDRESSES_FOUR
uint8_t tmp;
#endif
@ -227,6 +227,11 @@ static int lan9250_getmac(const struct lan9250_lower_s *lower, uint8_t *mac)
close(fd);
for (i = 0; i < 6; i++)
{
mac[i] = mac[5 - i];
}
#ifdef CONFIG_ESP32S3_UNIVERSAL_MAC_ADDRESSES_FOUR
mac[5] += 3;
#else