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
hws_serdes_seq_init(void)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
serdes_power_up_ctrl_ext(u32 serdes_num,int serdes_power_up,enum serdes_type serdes_type,enum serdes_speed baud_rate,enum serdes_mode serdes_mode,enum ref_clock ref_clock)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
hws_serdes_silicon_ref_clock_get(void)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
hws_serdes_get_max_lane(void)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
hws_is_serdes_active(u8 lane_num)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
hws_get_ext_base_addr(u32 serdes_num,u32 base_addr,u32 unit_base_offset,u32 * unit_base_reg,u32 * unit_offset)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 */
hws_serdes_get_phy_selector_val(int serdes_num,enum serdes_type serdes_type)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
hws_get_physical_serdes_num(u32 serdes_num)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 }
155