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

   1/*
   2 * Copyright (C) Marvell International Ltd. and its affiliates
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0
   5 */
   6
   7#include <common.h>
   8#include <spl.h>
   9#include <asm/io.h>
  10#include <asm/arch/cpu.h>
  11#include <asm/arch/soc.h>
  12
  13#include "high_speed_env_spec.h"
  14#include "sys_env_lib.h"
  15
  16u8 selectors_serdes_rev1_map[LAST_SERDES_TYPE][MAX_SERDES_LANES] = {
  17        /* 0  1    2    3    4    5 */
  18        {0x1, 0x1, NA,  NA,  NA,  NA},          /* PEX0 */
  19        {NA,  0x2, 0x1, NA,  0x1, NA},          /* PEX1 */
  20        {NA,  NA,  0x2, NA,  NA,  0x1},         /* PEX2 */
  21        {NA,  NA,  NA,  0x1, NA,  NA},          /* PEX3 */
  22        {0x2, 0x3, NA,  NA,  NA,  NA},          /* SATA0 */
  23        {NA,  NA,  0x3, NA,  0x2, NA},          /* SATA1 */
  24        {NA,  NA,  NA,  NA,  0x6, 0x2},         /* SATA2 */
  25        {NA,  NA,  NA,  0x3, NA,  NA},          /* SATA3 */
  26        {0x3, 0x4, NA,  NA,  NA,  NA},          /* SGMII0 */
  27        {NA,  0x5, 0x4, NA,  0x3, NA},          /* SGMII1 */
  28        {NA,  NA,  NA,  0x4, NA,  0x3},         /* SGMII2 */
  29        {NA,  0x7, NA,  NA,  NA,  NA},          /* QSGMII */
  30        {NA,  0x6, NA,  NA,  0x4, NA},          /* USB3_HOST0 */
  31        {NA,  NA,  NA,  0x5, NA,  0x4},         /* USB3_HOST1 */
  32        {NA,  NA,  NA,  0x6, 0x5, 0x5},         /* USB3_DEVICE */
  33        {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}          /* DEFAULT_SERDES */
  34};
  35
  36int hws_serdes_seq_init(void)
  37{
  38        DEBUG_INIT_FULL_S("\n### serdes_seq_init ###\n");
  39
  40        if (hws_serdes_seq_db_init() != MV_OK) {
  41                printf("hws_serdes_seq_init: Error: Serdes initialization fail\n");
  42                return MV_FAIL;
  43        }
  44
  45        return MV_OK;
  46}
  47
  48int serdes_power_up_ctrl_ext(u32 serdes_num, int serdes_power_up,
  49                             enum serdes_type serdes_type,
  50                             enum serdes_speed baud_rate,
  51                             enum serdes_mode serdes_mode,
  52                             enum ref_clock ref_clock)
  53{
  54        return MV_NOT_SUPPORTED;
  55}
  56
  57u32 hws_serdes_silicon_ref_clock_get(void)
  58{
  59        DEBUG_INIT_FULL_S("\n### hws_serdes_silicon_ref_clock_get ###\n");
  60
  61        return REF_CLOCK_25MHZ;
  62}
  63
  64u32 hws_serdes_get_max_lane(void)
  65{
  66        switch (sys_env_device_id_get()) {
  67        case MV_6811:           /* A381/A3282: 6811/6821: single/dual cpu */
  68                return 4;
  69        case MV_6810:
  70                return 5;
  71        case MV_6820:
  72        case MV_6828:
  73                return 6;
  74        default:                /* not the right module */
  75                printf("%s: Device ID Error, using 4 SerDes lanes\n",
  76                       __func__);
  77                return 4;
  78        }
  79        return 6;
  80}
  81
  82int hws_is_serdes_active(u8 lane_num)
  83{
  84        int ret = 1;
  85
  86        /* Maximum lane count for A388 (6828) is 6 */
  87        if (lane_num > 6)
  88                ret = 0;
  89
  90        /* 4th Lane (#4 on Device 6810 is not Active */
  91        if (sys_env_device_id_get() == MV_6810 && lane_num == 4) {
  92                printf("%s: Error: Lane#4 on Device 6810 is not Active.\n",
  93                       __func__);
  94                return 0;
  95        }
  96
  97        /*
  98         * 6th Lane (#5) on Device 6810 is Active, even though 6810
  99         * has only 5 lanes
 100         */
 101        if (sys_env_device_id_get() == MV_6810 && lane_num == 5)
 102                return 1;
 103
 104        if (lane_num >= hws_serdes_get_max_lane())
 105                ret = 0;
 106
 107        return ret;
 108}
 109
 110int hws_get_ext_base_addr(u32 serdes_num, u32 base_addr, u32 unit_base_offset,
 111                          u32 *unit_base_reg, u32 *unit_offset)
 112{
 113        *unit_base_reg = base_addr;
 114        *unit_offset = unit_base_offset;
 115
 116        return MV_OK;
 117}
 118
 119/*
 120 * hws_serdes_get_phy_selector_val
 121 *
 122 * DESCRIPTION: Get the mapping of Serdes Selector values according to the
 123 *              Serdes revision number
 124 * INPUT:    serdes_num - Serdes number
 125 *           serdes_type - Serdes type
 126 * OUTPUT: None
 127 * RETURN:
 128 *       Mapping of Serdes Selector values
 129 */
 130u32 hws_serdes_get_phy_selector_val(int serdes_num,
 131                                    enum serdes_type serdes_type)
 132{
 133        if (serdes_type >= LAST_SERDES_TYPE)
 134                return 0xff;
 135
 136        if (hws_ctrl_serdes_rev_get() == MV_SERDES_REV_1_2) {
 137                return selectors_serdes_rev1_map
 138                        [serdes_type][serdes_num];
 139        } else
 140                return selectors_serdes_rev2_map
 141                        [serdes_type][serdes_num];
 142}
 143
 144u32 hws_get_physical_serdes_num(u32 serdes_num)
 145{
 146        if ((serdes_num == 4) && (sys_env_device_id_get() == MV_6810)) {
 147                /*
 148                 * For 6810, there are 5 Serdes and Serdes Num 4 doesn't
 149                 * exist. Instead Serdes Num 5 is connected.
 150                 */
 151                return 5;
 152        } else {
 153                return serdes_num;
 154        }
 155}
 156