LXR uboot/arch/arm/mach-mvebu/serdes/a38x/high_speed_env

   1// SPDX-License-Identifier: GPL-2.0
   2/*
   3 * Copyright (C) Marvell International Ltd. and its affiliates
   4 */
   5
   6#include <common.h>
   7#include <spl.h>
   8#include <asm/io.h>
   9#include <asm/arch/cpu.h>
  10#include <asm/arch/soc.h>
  11
  12#include "high_speed_env_spec.h"
  13#include "sys_env_lib.h"
  14
  15u8 selectors_serdes_rev1_map[LAST_SERDES_TYPE][MAX_SERDES_LANES] = {
  16        /* 0  1    2    3    4    5 */
  17        {0x1, 0x1, NA,  NA,  NA,  NA},          /* PEX0 */
  18        {NA,  0x2, 0x1, NA,  0x1, NA},          /* PEX1 */
  19        {NA,  NA,  0x2, NA,  NA,  0x1},         /* PEX2 */
  20        {NA,  NA,  NA,  0x1, NA,  NA},          /* PEX3 */
  21        {0x2, 0x3, NA,  NA,  NA,  NA},          /* SATA0 */
  22        {NA,  NA,  0x3, NA,  0x2, NA},          /* SATA1 */
  23        {NA,  NA,  NA,  NA,  0x6, 0x2},         /* SATA2 */
  24        {NA,  NA,  NA,  0x3, NA,  NA},          /* SATA3 */
  25        {0x3, 0x4, NA,  NA,  NA,  NA},          /* SGMII0 */
  26        {NA,  0x5, 0x4, NA,  0x3, NA},          /* SGMII1 */
  27        {NA,  NA,  NA,  0x4, NA,  0x3},         /* SGMII2 */
  28        {NA,  0x7, NA,  NA,  NA,  NA},          /* QSGMII */
  29        {NA,  0x6, NA,  NA,  0x4, NA},          /* USB3_HOST0 */
  30        {NA,  NA,  NA,  0x5, NA,  0x4},         /* USB3_HOST1 */
  31        {NA,  NA,  NA,  0x6, 0x5, 0x5},         /* USB3_DEVICE */
  32        {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}          /* DEFAULT_SERDES */
  33};
  34
  35int hws_serdes_seq_init(void)
  36{
  37        DEBUG_INIT_FULL_S("\n### serdes_seq_init ###\n");
  38
  39        if (hws_serdes_seq_db_init() != MV_OK) {
  40                printf("hws_serdes_seq_init: Error: Serdes initialization fail\n");
  41                return MV_FAIL;
  42        }
  43
  44        return MV_OK;
  45}
  46
  47int serdes_power_up_ctrl_ext(u32 serdes_num, int serdes_power_up,
  48                             enum serdes_type serdes_type,
  49                             enum serdes_speed baud_rate,
  50                             enum serdes_mode serdes_mode,
  51                             enum ref_clock ref_clock)
  52{
  53        return MV_NOT_SUPPORTED;
  54}
  55
  56u32 hws_serdes_silicon_ref_clock_get(void)
  57{
  58        DEBUG_INIT_FULL_S("\n### hws_serdes_silicon_ref_clock_get ###\n");
  59
  60        return REF_CLOCK_25MHZ;
  61}
  62
  63u32 hws_serdes_get_max_lane(void)
  64{
  65        switch (sys_env_device_id_get()) {
  66        case MV_6811:           /* A381/A3282: 6811/6821: single/dual cpu */
  67                return 4;
  68        case MV_6810:
  69                return 5;
  70        case MV_6820:
  71        case MV_6828:
  72                return 6;
  73        default:                /* not the right module */
  74                printf("%s: Device ID Error, using 4 SerDes lanes\n",
  75                       __func__);
  76                return 4;
  77        }
  78        return 6;
  79}
  80
  81int hws_is_serdes_active(u8 lane_num)
  82{
  83        int ret = 1;
  84
  85        /* Maximum lane count for A388 (6828) is 6 */
  86        if (lane_num > 6)
  87                ret = 0;
  88
  89        /* 4th Lane (#4 on Device 6810 is not Active */
  90        if (sys_env_device_id_get() == MV_6810 && lane_num == 4) {
  91                printf("%s: Error: Lane#4 on Device 6810 is not Active.\n",
  92                       __func__);
  93                return 0;
  94        }
  95
  96        /*
  97         * 6th Lane (#5) on Device 6810 is Active, even though 6810
  98         * has only 5 lanes
  99         */
 100        if (sys_env_device_id_get() == MV_6810 && lane_num == 5)
 101                return 1;
 102
 103        if (lane_num >= hws_serdes_get_max_lane())
 104                ret = 0;
 105
 106        return ret;
 107}
 108
 109int hws_get_ext_base_addr(u32 serdes_num, u32 base_addr, u32 unit_base_offset,
 110                          u32 *unit_base_reg, u32 *unit_offset)
 111{
 112        *unit_base_reg = base_addr;
 113        *unit_offset = unit_base_offset;
 114
 115        return MV_OK;
 116}
 117
 118/*
 119 * hws_serdes_get_phy_selector_val
 120 *
 121 * DESCRIPTION: Get the mapping of Serdes Selector values according to the
 122 *              Serdes revision number
 123 * INPUT:    serdes_num - Serdes number
 124 *           serdes_type - Serdes type
 125 * OUTPUT: None
 126 * RETURN:
 127 *       Mapping of Serdes Selector values
 128 */
 129u32 hws_serdes_get_phy_selector_val(int serdes_num,
 130                                    enum serdes_type serdes_type)
 131{
 132        if (serdes_type >= LAST_SERDES_TYPE)
 133                return 0xff;
 134
 135        if (hws_ctrl_serdes_rev_get() == MV_SERDES_REV_1_2) {
 136                return selectors_serdes_rev1_map
 137                        [serdes_type][serdes_num];
 138        } else
 139                return selectors_serdes_rev2_map
 140                        [serdes_type][serdes_num];
 141}
 142
 143u32 hws_get_physical_serdes_num(u32 serdes_num)
 144{
 145        if ((serdes_num == 4) && (sys_env_device_id_get() == MV_6810)) {
 146                /*
 147                 * For 6810, there are 5 Serdes and Serdes Num 4 doesn't
 148                 * exist. Instead Serdes Num 5 is connected.
 149                 */
 150                return 5;
 151        } else {
 152                return serdes_num;
 153        }
 154}
 155