p201.c 952 B

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2016 Beniamino Galvani <b.galvani@gmail.com>
  4. */
  5. #include <common.h>
  6. #include <dm.h>
  7. #include <env.h>
  8. #include <asm/io.h>
  9. #include <asm/arch/gx.h>
  10. #include <asm/arch/sm.h>
  11. #include <asm/arch/eth.h>
  12. #include <asm/arch/mem.h>
  13. #define EFUSE_SN_OFFSET 20
  14. #define EFUSE_SN_SIZE 16
  15. #define EFUSE_MAC_OFFSET 52
  16. #define EFUSE_MAC_SIZE 6
  17. int misc_init_r(void)
  18. {
  19. u8 mac_addr[EFUSE_MAC_SIZE];
  20. char serial[EFUSE_SN_SIZE];
  21. ssize_t len;
  22. meson_eth_init(PHY_INTERFACE_MODE_RMII, 0);
  23. if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
  24. len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
  25. mac_addr, EFUSE_MAC_SIZE);
  26. if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
  27. eth_env_set_enetaddr("ethaddr", mac_addr);
  28. }
  29. if (!env_get("serial#")) {
  30. len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
  31. EFUSE_SN_SIZE);
  32. if (len == EFUSE_SN_SIZE)
  33. env_set("serial#", serial);
  34. }
  35. return 0;
  36. }