arch/arm/mach-mvebu/serdes/a38x/high_speed_env_spec-38x.c

   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
  15 u8 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
  35 int 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
  47 int 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
  56 u32 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
  63 u32 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
  81 int 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
 109 int 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  */
 129 u32 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
 143 u32 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 }