LXR uboot/arch/powerpc/cpu/mpc85xx/p1010

   1/*
   2 * Copyright 2011 Freescale Semiconductor, Inc.
   3 * Author: Prabhakar Kushwaha <prabhakar@freescale.com>
   4 *
   5 * SPDX-License-Identifier:     GPL-2.0+
   6 */
   7
   8#include <config.h>
   9#include <common.h>
  10#include <asm/io.h>
  11#include <asm/immap_85xx.h>
  12#include <asm/fsl_serdes.h>
  13
  14#define SRDS1_MAX_LANES         4
  15#define SRDS2_MAX_LANES         2
  16
  17static u32 serdes1_prtcl_map, serdes2_prtcl_map;
  18
  19static const u8 serdes1_cfg_tbl[][SRDS1_MAX_LANES] = {
  20        [0x00] = {NONE, NONE, NONE, NONE},
  21        [0x01] = {PCIE1, PCIE2, SGMII_TSEC2, SGMII_TSEC3},
  22        [0x02] = {PCIE1, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
  23        [0x03] = {NONE, SGMII_TSEC1, SGMII_TSEC2, SGMII_TSEC3},
  24};
  25
  26static const u8 serdes2_cfg_tbl[][SRDS2_MAX_LANES] = {
  27        [0x00] = {NONE, NONE},
  28        [0x01] = {SATA1, SATA2},
  29        [0x02] = {SATA1, SATA2},
  30        [0x03] = {PCIE1, PCIE2},
  31};
  32
  33
  34int is_serdes_configured(enum srds_prtcl device)
  35{
  36        int ret = (1 << device) & serdes1_prtcl_map;
  37
  38        if (ret)
  39                return ret;
  40
  41        return (1 << device) & serdes2_prtcl_map;
  42}
  43
  44void fsl_serdes_init(void)
  45{
  46        ccsr_gur_t *gur = (void *)CONFIG_SYS_MPC85xx_GUTS_ADDR;
  47        u32 pordevsr = in_be32(&gur->pordevsr);
  48        u32 srds_cfg = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
  49                                MPC85xx_PORDEVSR_IO_SEL_SHIFT;
  50        int lane;
  51
  52        debug("PORDEVSR[IO_SEL_SRDS] = %x\n", srds_cfg);
  53
  54        if (srds_cfg >= ARRAY_SIZE(serdes1_cfg_tbl)) {
  55                printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
  56                return;
  57        }
  58        for (lane = 0; lane < SRDS1_MAX_LANES; lane++) {
  59                enum srds_prtcl lane_prtcl = serdes1_cfg_tbl[srds_cfg][lane];
  60                serdes1_prtcl_map |= (1 << lane_prtcl);
  61        }
  62
  63        if (srds_cfg >= ARRAY_SIZE(serdes2_cfg_tbl)) {
  64                printf("Invalid PORDEVSR[IO_SEL_SRDS] = %d\n", srds_cfg);
  65                return;
  66        }
  67
  68        for (lane = 0; lane < SRDS2_MAX_LANES; lane++) {
  69                enum srds_prtcl lane_prtcl = serdes2_cfg_tbl[srds_cfg][lane];
  70                serdes2_prtcl_map |= (1 << lane_prtcl);
  71        }
  72}
  73