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Julien Masson90f8d492019-03-25 11:55:29 +01001// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2019 Julien Masson <jmasson@baylibre.com>
4 * (C) Copyright 2019 Neil Armstrong <narmstrong@baylibre.com>
5 */
6
7#include <common.h>
8#include <asm/io.h>
9#include <dm.h>
10#include <linux/bitfield.h>
11#include <regmap.h>
12#include <syscon.h>
13
14#define AO_SEC_SD_CFG8 0xe0
15#define AO_SEC_SOCINFO_OFFSET AO_SEC_SD_CFG8
16
17#define SOCINFO_MAJOR GENMASK(31, 24)
18#define SOCINFO_PACK GENMASK(23, 16)
19#define SOCINFO_MINOR GENMASK(15, 8)
20#define SOCINFO_MISC GENMASK(7, 0)
21
22static const struct meson_gx_soc_id {
23 const char *name;
24 unsigned int id;
25} soc_ids[] = {
26 { "GXBB", 0x1f },
27 { "GXTVBB", 0x20 },
28 { "GXL", 0x21 },
29 { "GXM", 0x22 },
30 { "TXL", 0x23 },
31 { "TXLX", 0x24 },
32 { "AXG", 0x25 },
33 { "GXLX", 0x26 },
34 { "TXHD", 0x27 },
35 { "G12A", 0x28 },
36 { "G12B", 0x29 },
Neil Armstrong319600b2019-10-11 17:33:51 +020037 { "SM1", 0x2b },
Julien Masson90f8d492019-03-25 11:55:29 +010038};
39
40static const struct meson_gx_package_id {
41 const char *name;
42 unsigned int major_id;
43 unsigned int pack_id;
44 unsigned int pack_mask;
45} soc_packages[] = {
46 { "S905", 0x1f, 0, 0x20 }, /* pack_id != 0x20 */
47 { "S905H", 0x1f, 0x3, 0xf }, /* pack_id & 0xf == 0x3 */
48 { "S905M", 0x1f, 0x20, 0xf0 }, /* pack_id == 0x20 */
49 { "S905D", 0x21, 0, 0xf0 },
50 { "S905X", 0x21, 0x80, 0xf0 },
51 { "S905W", 0x21, 0xa0, 0xf0 },
52 { "S905L", 0x21, 0xc0, 0xf0 },
53 { "S905M2", 0x21, 0xe0, 0xf0 },
54 { "S805X", 0x21, 0x30, 0xf0 },
55 { "S805Y", 0x21, 0xb0, 0xf0 },
56 { "S912", 0x22, 0, 0x0 }, /* Only S912 is known for GXM */
57 { "962X", 0x24, 0x10, 0xf0 },
58 { "962E", 0x24, 0x20, 0xf0 },
59 { "A113X", 0x25, 0x37, 0xff },
60 { "A113D", 0x25, 0x22, 0xff },
61 { "S905D2", 0x28, 0x10, 0xf0 },
62 { "S905X2", 0x28, 0x40, 0xf0 },
Andreas Färberb9fe9ef2019-10-09 16:03:57 +020063 { "A311D", 0x29, 0x10, 0xf0 },
Julien Masson90f8d492019-03-25 11:55:29 +010064 { "S922X", 0x29, 0x40, 0xf0 },
Neil Armstrong319600b2019-10-11 17:33:51 +020065 { "S905X3", 0x2b, 0x5, 0xf },
Julien Masson90f8d492019-03-25 11:55:29 +010066};
67
68DECLARE_GLOBAL_DATA_PTR;
69
70static inline unsigned int socinfo_to_major(u32 socinfo)
71{
72 return FIELD_GET(SOCINFO_MAJOR, socinfo);
73}
74
75static inline unsigned int socinfo_to_minor(u32 socinfo)
76{
77 return FIELD_GET(SOCINFO_MINOR, socinfo);
78}
79
80static inline unsigned int socinfo_to_pack(u32 socinfo)
81{
82 return FIELD_GET(SOCINFO_PACK, socinfo);
83}
84
85static inline unsigned int socinfo_to_misc(u32 socinfo)
86{
87 return FIELD_GET(SOCINFO_MISC, socinfo);
88}
89
90static const char *socinfo_to_package_id(u32 socinfo)
91{
92 unsigned int pack = socinfo_to_pack(socinfo);
93 unsigned int major = socinfo_to_major(socinfo);
94 int i;
95
96 for (i = 0 ; i < ARRAY_SIZE(soc_packages) ; ++i) {
97 if (soc_packages[i].major_id == major &&
98 soc_packages[i].pack_id ==
99 (pack & soc_packages[i].pack_mask))
100 return soc_packages[i].name;
101 }
102
103 return "Unknown";
104}
105
106static const char *socinfo_to_soc_id(u32 socinfo)
107{
108 unsigned int id = socinfo_to_major(socinfo);
109 int i;
110
111 for (i = 0 ; i < ARRAY_SIZE(soc_ids) ; ++i) {
112 if (soc_ids[i].id == id)
113 return soc_ids[i].name;
114 }
115
116 return "Unknown";
117}
118
119static void print_board_model(void)
120{
121 const char *model;
122 model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
123 printf("Model: %s\n", model ? model : "Unknown");
124}
125
126int show_board_info(void)
127{
128 struct regmap *regmap;
129 int nodeoffset, ret;
130 ofnode node;
131 unsigned int socinfo;
132
133 /* find the offset of compatible node */
134 nodeoffset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
135 "amlogic,meson-gx-ao-secure");
136 if (nodeoffset < 0)
137 return 0;
138
139 /* check if chip-id is available */
140 if (!fdt_getprop(gd->fdt_blob, nodeoffset, "amlogic,has-chip-id", NULL))
141 return 0;
142
143 /* get regmap from the syscon node */
144 node = offset_to_ofnode(nodeoffset);
145 regmap = syscon_node_to_regmap(node);
146 if (IS_ERR(regmap)) {
147 printf("%s: failed to get regmap\n", __func__);
148 return 0;
149 }
150
151 /* read soc info */
152 ret = regmap_read(regmap, AO_SEC_SOCINFO_OFFSET, &socinfo);
153 if (ret && !socinfo) {
154 printf("%s: invalid chipid value\n", __func__);
155 return 0;
156 }
157
158 /* print board information */
159 print_board_model();
Andreas Färbere9763db2019-10-09 16:03:56 +0200160 printf("SoC: Amlogic Meson %s (%s) Revision %x:%x (%x:%x)\n",
Julien Masson90f8d492019-03-25 11:55:29 +0100161 socinfo_to_soc_id(socinfo),
162 socinfo_to_package_id(socinfo),
163 socinfo_to_major(socinfo),
164 socinfo_to_minor(socinfo),
165 socinfo_to_pack(socinfo),
166 socinfo_to_misc(socinfo));
167
168 return 0;
169}