LXR uboot/arch/powerpc/cpu/mpc85xx/p2020

   1/*
   2 * Copyright 2010 Freescale Semiconductor, Inc.
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <config.h>
   8#include <common.h>
   9#include <asm/io.h>
  10#include <asm/immap_85xx.h>
  11#include <asm/fsl_serdes.h>
  12
  13#define SRDS1_MAX_LANES         4
  14
  15static u32 serdes1_prtcl_map;
  16
  17static u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
  18        [0x0] = {PCIE1, NONE, NONE, NONE},
  19        [0x2] = {PCIE1, PCIE2, PCIE3, PCIE3},
  20        [0x4] = {PCIE1, PCIE1, PCIE3, PCIE3},
  21        [0x6] = {PCIE1, PCIE1, PCIE1, PCIE1},
  22        [0x7] = {SRIO2, SRIO1, NONE, NONE},
  23        [0x8] = {SRIO2, SRIO2, SRIO2, SRIO2},
  24        [0x9] = {SRIO2, SRIO2, SRIO2, SRIO2},
  25        [0xa] = {SRIO2, SRIO2, SRIO2, SRIO2},
  26        [0xb] = {SRIO2, SRIO1, SGMII_TSEC2, SGMII_TSEC3},
  27        [0xc] = {SRIO2, SRIO1, SGMII_TSEC2, SGMII_TSEC3},
  28        [0xd] = {PCIE1, SRIO1, SGMII_TSEC2, SGMII_TSEC3},
  29        [0xe] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
  30        [0xf] = {PCIE1, PCIE1, SGMII_TSEC2, SGMII_TSEC3},
  31};
  32
  33int is_serdes_configured(enum srds_prtcl prtcl)
  34{
  35        return (1 << prtcl) & serdes1_prtcl_map;
  36}
  37
  38void fsl_serdes_init(void)
  39{
  40        ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  41        u32 pordevsr = in_be32(&gur->pordevsr);
  42        u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
  43                                MPC85xx_PORDEVSR_IO_SEL_SHIFT;
  44        int lane;
  45
  46        debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
  47
  48        if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
  49                printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
  50                return;
  51        }
  52
  53        for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
  54                enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
  55                serdes1_prtcl_map |= (1 << lane_prtcl);
  56        }
  57}
  58