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[Backport v3.7-branch] drivers: ethernet: nxp_enet: Fused MAC address fixes #76658

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Merged
merged 1 commit into from
Sep 11, 2024
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[Backport v3.7-branch] drivers: ethernet: nxp_enet: Fused MAC address fixes #76658

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25 changes: 15 additions & 10 deletions drivers/ethernet/nxp_enet/eth_nxp_enet.c
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Original file line number Diff line number Diff line change
Expand Up @@ -634,20 +634,25 @@ static inline void nxp_enet_fused_mac(uint8_t *mac_addr)
#ifdef CONFIG_SOC_FAMILY_NXP_IMXRT
uint32_t mac_addr_fuse[2] = {0};

OCOTP_ReadFuseShadowRegisterExt((OCOTP_Type *)OCOTP_BASE,
#if defined(CONFIG_SOC_SERIES_IMXRT10XX)
0x620,
OCOTP_Init((OCOTP_Type *)OCOTP_BASE, CLOCK_GetIpgFreq());
/* OTP bank 4, word 2: MAC0 */
OCOTP_ReadFuseShadowRegisterExt((OCOTP_Type *)OCOTP_BASE,
0x22, &mac_addr_fuse[0], 1);
/* OTP bank 4, word 3: MAC1*/
OCOTP_ReadFuseShadowRegisterExt((OCOTP_Type *)OCOTP_BASE,
0x23, &mac_addr_fuse[1], 1);
#elif defined(CONFIG_SOC_SERIES_IMXRT11XX)
0xA90,
OCOTP_Init((OCOTP_Type *)OCOTP_BASE, 0);
OCOTP_ReadFuseShadowRegisterExt((OCOTP_Type *)OCOTP_BASE,
0x28, &mac_addr_fuse[0], 2);
#endif
mac_addr_fuse, 2);

mac_addr[0] = mac_addr_fuse[0] & 0x000000FF;
mac_addr[1] = mac_addr_fuse[0] & 0x0000FF00;
mac_addr[2] = mac_addr_fuse[0] & 0x00FF0000;
mac_addr[3] = mac_addr_fuse[0] & 0xFF000000;
mac_addr[4] = mac_addr_fuse[1] & 0x00FF;
mac_addr[5] = mac_addr_fuse[1] & 0xFF00;
mac_addr[1] = (mac_addr_fuse[0] & 0x0000FF00) >> 8;
mac_addr[2] = (mac_addr_fuse[0] & 0x00FF0000) >> 16;
mac_addr[3] = (mac_addr_fuse[0] & 0xFF000000) >> 24;
mac_addr[4] = (mac_addr_fuse[1] & 0x00FF);
mac_addr[5] = (mac_addr_fuse[1] & 0xFF00) >> 8;
#else
ARG_UNUSED(mac_addr);
#endif
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