mpc8569_serdes.c 1.8 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * Copyright 2010 Freescale Semiconductor, Inc.
  4. */
  5. #include <config.h>
  6. #include <common.h>
  7. #include <log.h>
  8. #include <asm/io.h>
  9. #include <asm/immap_85xx.h>
  10. #include <asm/fsl_serdes.h>
  11. #define SRDS1_MAX_LANES 4
  12. static u32 serdes1_prtcl_map;
  13. static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
  14. [0x0] = {PCIE1, NONE, NONE, NONE},
  15. [0x1] = {SRIO1, SRIO2, SGMII_TSEC1, SGMII_TSEC2},
  16. [0x2] = {SRIO1, SRIO2, SGMII_TSEC1, SGMII_TSEC2},
  17. [0x3] = {SRIO1, SRIO2, NONE, NONE},
  18. [0x4] = {PCIE1, NONE, SGMII_TSEC1, SGMII_TSEC2},
  19. [0x5] = {PCIE1, PCIE1, SGMII_TSEC1, SGMII_TSEC2},
  20. [0x6] = {PCIE1, NONE, SRIO1, SRIO2},
  21. [0x7] = {PCIE1, PCIE1, SRIO1, SRIO2},
  22. [0x8] = {PCIE1, PCIE1, SRIO1, SRIO2},
  23. [0x9] = {SRIO1, SRIO1, SRIO1, SRIO1},
  24. [0xa] = {SRIO1, SRIO1, SRIO1, SRIO1},
  25. [0xb] = {SRIO1, SRIO1, SRIO1, SRIO1},
  26. [0xc] = {PCIE1, SRIO1, SGMII_TSEC1, SGMII_TSEC2},
  27. [0xf] = {PCIE1, PCIE1, PCIE1, PCIE1},
  28. };
  29. int is_serdes_configured(enum srds_prtcl prtcl)
  30. {
  31. if (!(serdes1_prtcl_map & (1 << NONE)))
  32. fsl_serdes_init();
  33. return (1 << prtcl) & serdes1_prtcl_map;
  34. }
  35. void fsl_serdes_init(void)
  36. {
  37. ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  38. u32 pordevsr = in_be32(&gur->pordevsr);
  39. u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
  40. MPC85xx_PORDEVSR_IO_SEL_SHIFT;
  41. int lane;
  42. if (serdes1_prtcl_map & (1 << NONE))
  43. return;
  44. debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
  45. if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
  46. printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
  47. return;
  48. }
  49. for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
  50. enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
  51. serdes1_prtcl_map |= (1 << lane_prtcl);
  52. }
  53. /* Set the first bit to indicate serdes has been initialized */
  54. serdes1_prtcl_map |= (1 << NONE);
  55. }