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 u8 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 
36 int 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 
48 int 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 
57 u32 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 
64 u32 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 
82 int 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 
110 int 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  */
130 u32 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 
144 u32 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