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 16 #define SERDES_VERION "2.0" 17 18 u8 selectors_serdes_rev1_map[LAST_SERDES_TYPE][MAX_SERDES_LANES] = { 19 /* 0 1 2 3 4 5 */ 20 {0x1, 0x1, NA, NA, NA, NA}, /* PEX0 */ 21 {NA, 0x2, 0x1, NA, 0x1, NA}, /* PEX1 */ 22 {NA, NA, 0x2, NA, NA, 0x1}, /* PEX2 */ 23 {NA, NA, NA, 0x1, NA, NA}, /* PEX3 */ 24 {0x2, 0x3, NA, NA, NA, NA}, /* SATA0 */ 25 {NA, NA, 0x3, NA, 0x2, NA}, /* SATA1 */ 26 {NA, NA, NA, NA, 0x6, 0x2}, /* SATA2 */ 27 {NA, NA, NA, 0x3, NA, NA}, /* SATA3 */ 28 {0x3, 0x4, NA, NA, NA, NA}, /* SGMII0 */ 29 {NA, 0x5, 0x4, NA, 0x3, NA}, /* SGMII1 */ 30 {NA, NA, NA, 0x4, NA, 0x3}, /* SGMII2 */ 31 {NA, 0x7, NA, NA, NA, NA}, /* QSGMII */ 32 {NA, 0x6, NA, NA, 0x4, NA}, /* USB3_HOST0 */ 33 {NA, NA, NA, 0x5, NA, 0x4}, /* USB3_HOST1 */ 34 {NA, NA, NA, 0x6, 0x5, 0x5}, /* USB3_DEVICE */ 35 {0x0, 0x0, 0x0, 0x0, 0x0, 0x0} /* DEFAULT_SERDES */ 36 }; 37 38 int hws_serdes_seq_init(void) 39 { 40 DEBUG_INIT_FULL_S("\n### serdes_seq_init ###\n"); 41 42 if (hws_serdes_seq_db_init() != MV_OK) { 43 printf("hws_serdes_seq_init: Error: Serdes initialization fail\n"); 44 return MV_FAIL; 45 } 46 47 return MV_OK; 48 } 49 50 int serdes_power_up_ctrl_ext(u32 serdes_num, int serdes_power_up, 51 enum serdes_type serdes_type, 52 enum serdes_speed baud_rate, 53 enum serdes_mode serdes_mode, 54 enum ref_clock ref_clock) 55 { 56 return MV_NOT_SUPPORTED; 57 } 58 59 u32 hws_serdes_silicon_ref_clock_get(void) 60 { 61 DEBUG_INIT_FULL_S("\n### hws_serdes_silicon_ref_clock_get ###\n"); 62 63 return REF_CLOCK_25MHZ; 64 } 65 66 u32 hws_serdes_get_max_lane(void) 67 { 68 switch (sys_env_device_id_get()) { 69 case MV_6811: /* A381/A3282: 6811/6821: single/dual cpu */ 70 return 4; 71 case MV_6810: 72 return 5; 73 case MV_6820: 74 case MV_6828: 75 return 6; 76 default: /* not the right module */ 77 printf("%s: Device ID Error, using 4 SerDes lanes\n", 78 __func__); 79 return 4; 80 } 81 return 6; 82 } 83 84 int hws_is_serdes_active(u8 lane_num) 85 { 86 int ret = 1; 87 88 /* Maximum lane count for A388 (6828) is 6 */ 89 if (lane_num > 6) 90 ret = 0; 91 92 /* 4th Lane (#4 on Device 6810 is not Active */ 93 if (sys_env_device_id_get() == MV_6810 && lane_num == 4) { 94 printf("%s: Error: Lane#4 on Device 6810 is not Active.\n", 95 __func__); 96 return 0; 97 } 98 99 /* 100 * 6th Lane (#5) on Device 6810 is Active, even though 6810 101 * has only 5 lanes 102 */ 103 if (sys_env_device_id_get() == MV_6810 && lane_num == 5) 104 return 1; 105 106 if (lane_num >= hws_serdes_get_max_lane()) 107 ret = 0; 108 109 return ret; 110 } 111 112 int hws_get_ext_base_addr(u32 serdes_num, u32 base_addr, u32 unit_base_offset, 113 u32 *unit_base_reg, u32 *unit_offset) 114 { 115 *unit_base_reg = base_addr; 116 *unit_offset = unit_base_offset; 117 118 return MV_OK; 119 } 120 121 /* 122 * hws_serdes_get_phy_selector_val 123 * 124 * DESCRIPTION: Get the mapping of Serdes Selector values according to the 125 * Serdes revision number 126 * INPUT: serdes_num - Serdes number 127 * serdes_type - Serdes type 128 * OUTPUT: None 129 * RETURN: 130 * Mapping of Serdes Selector values 131 */ 132 u32 hws_serdes_get_phy_selector_val(int serdes_num, 133 enum serdes_type serdes_type) 134 { 135 if (serdes_type >= LAST_SERDES_TYPE) 136 return 0xff; 137 138 if (hws_ctrl_serdes_rev_get() == MV_SERDES_REV_1_2) { 139 return selectors_serdes_rev1_map 140 [serdes_type][serdes_num]; 141 } else 142 return selectors_serdes_rev2_map 143 [serdes_type][serdes_num]; 144 } 145 146 u32 hws_get_physical_serdes_num(u32 serdes_num) 147 { 148 if ((serdes_num == 4) && (sys_env_device_id_get() == MV_6810)) { 149 /* 150 * For 6810, there are 5 Serdes and Serdes Num 4 doesn't 151 * exist. Instead Serdes Num 5 is connected. 152 */ 153 return 5; 154 } else { 155 return serdes_num; 156 } 157 } 158