1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2019 Julien Masson <jmasson@baylibre.com>
4 * (C) Copyright 2019 Neil Armstrong <narmstrong@baylibre.com>
10 #include <linux/bitfield.h>
13 #include <linux/err.h>
15 #define AO_SEC_SD_CFG8 0xe0
16 #define AO_SEC_SOCINFO_OFFSET AO_SEC_SD_CFG8
18 #define SOCINFO_MAJOR GENMASK(31, 24)
19 #define SOCINFO_PACK GENMASK(23, 16)
20 #define SOCINFO_MINOR GENMASK(15, 8)
21 #define SOCINFO_MISC GENMASK(7, 0)
23 static const struct meson_gx_soc_id {
41 static const struct meson_gx_package_id {
43 unsigned int major_id;
45 unsigned int pack_mask;
47 { "S905", 0x1f, 0, 0x20 }, /* pack_id != 0x20 */
48 { "S905H", 0x1f, 0x3, 0xf }, /* pack_id & 0xf == 0x3 */
49 { "S905M", 0x1f, 0x20, 0xf0 }, /* pack_id == 0x20 */
50 { "S905D", 0x21, 0, 0xf0 },
51 { "S905X", 0x21, 0x80, 0xf0 },
52 { "S905W", 0x21, 0xa0, 0xf0 },
53 { "S905L", 0x21, 0xc0, 0xf0 },
54 { "S905M2", 0x21, 0xe0, 0xf0 },
55 { "S805X", 0x21, 0x30, 0xf0 },
56 { "S805Y", 0x21, 0xb0, 0xf0 },
57 { "S912", 0x22, 0, 0x0 }, /* Only S912 is known for GXM */
58 { "962X", 0x24, 0x10, 0xf0 },
59 { "962E", 0x24, 0x20, 0xf0 },
60 { "A113X", 0x25, 0x37, 0xff },
61 { "A113D", 0x25, 0x22, 0xff },
62 { "S905D2", 0x28, 0x10, 0xf0 },
63 { "S905X2", 0x28, 0x40, 0xf0 },
64 { "A311D", 0x29, 0x10, 0xf0 },
65 { "S922X", 0x29, 0x40, 0xf0 },
66 { "S905X3", 0x2b, 0x5, 0xf },
69 DECLARE_GLOBAL_DATA_PTR;
71 static inline unsigned int socinfo_to_major(u32 socinfo)
73 return FIELD_GET(SOCINFO_MAJOR, socinfo);
76 static inline unsigned int socinfo_to_minor(u32 socinfo)
78 return FIELD_GET(SOCINFO_MINOR, socinfo);
81 static inline unsigned int socinfo_to_pack(u32 socinfo)
83 return FIELD_GET(SOCINFO_PACK, socinfo);
86 static inline unsigned int socinfo_to_misc(u32 socinfo)
88 return FIELD_GET(SOCINFO_MISC, socinfo);
91 static const char *socinfo_to_package_id(u32 socinfo)
93 unsigned int pack = socinfo_to_pack(socinfo);
94 unsigned int major = socinfo_to_major(socinfo);
97 for (i = 0 ; i < ARRAY_SIZE(soc_packages) ; ++i) {
98 if (soc_packages[i].major_id == major &&
99 soc_packages[i].pack_id ==
100 (pack & soc_packages[i].pack_mask))
101 return soc_packages[i].name;
107 static const char *socinfo_to_soc_id(u32 socinfo)
109 unsigned int id = socinfo_to_major(socinfo);
112 for (i = 0 ; i < ARRAY_SIZE(soc_ids) ; ++i) {
113 if (soc_ids[i].id == id)
114 return soc_ids[i].name;
120 static void print_board_model(void)
123 model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
124 printf("Model: %s\n", model ? model : "Unknown");
127 int show_board_info(void)
129 struct regmap *regmap;
132 unsigned int socinfo;
134 /* find the offset of compatible node */
135 nodeoffset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
136 "amlogic,meson-gx-ao-secure");
140 /* check if chip-id is available */
141 if (!fdt_getprop(gd->fdt_blob, nodeoffset, "amlogic,has-chip-id", NULL))
144 /* get regmap from the syscon node */
145 node = offset_to_ofnode(nodeoffset);
146 regmap = syscon_node_to_regmap(node);
147 if (IS_ERR(regmap)) {
148 printf("%s: failed to get regmap\n", __func__);
153 ret = regmap_read(regmap, AO_SEC_SOCINFO_OFFSET, &socinfo);
154 if (ret && !socinfo) {
155 printf("%s: invalid chipid value\n", __func__);
159 /* print board information */
161 printf("SoC: Amlogic Meson %s (%s) Revision %x:%x (%x:%x)\n",
162 socinfo_to_soc_id(socinfo),
163 socinfo_to_package_id(socinfo),
164 socinfo_to_major(socinfo),
165 socinfo_to_minor(socinfo),
166 socinfo_to_pack(socinfo),
167 socinfo_to_misc(socinfo));