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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * (C) Copyright 2019 Julien Masson <jmasson@baylibre.com>
- * (C) Copyright 2019 Neil Armstrong <narmstrong@baylibre.com>
- */
- #include <common.h>
- #include <init.h>
- #include <asm/io.h>
- #include <dm.h>
- #include <linux/bitfield.h>
- #include <regmap.h>
- #include <syscon.h>
- #include <linux/err.h>
- #define AO_SEC_SD_CFG8 0xe0
- #define AO_SEC_SOCINFO_OFFSET AO_SEC_SD_CFG8
- #define SOCINFO_MAJOR GENMASK(31, 24)
- #define SOCINFO_PACK GENMASK(23, 16)
- #define SOCINFO_MINOR GENMASK(15, 8)
- #define SOCINFO_MISC GENMASK(7, 0)
- static const struct meson_gx_soc_id {
- const char *name;
- unsigned int id;
- } soc_ids[] = {
- { "GXBB", 0x1f },
- { "GXTVBB", 0x20 },
- { "GXL", 0x21 },
- { "GXM", 0x22 },
- { "TXL", 0x23 },
- { "TXLX", 0x24 },
- { "AXG", 0x25 },
- { "GXLX", 0x26 },
- { "TXHD", 0x27 },
- { "G12A", 0x28 },
- { "G12B", 0x29 },
- { "SM1", 0x2b },
- };
- static const struct meson_gx_package_id {
- const char *name;
- unsigned int major_id;
- unsigned int pack_id;
- unsigned int pack_mask;
- } soc_packages[] = {
- { "S905", 0x1f, 0, 0x20 }, /* pack_id != 0x20 */
- { "S905H", 0x1f, 0x3, 0xf }, /* pack_id & 0xf == 0x3 */
- { "S905M", 0x1f, 0x20, 0xf0 }, /* pack_id == 0x20 */
- { "S905D", 0x21, 0, 0xf0 },
- { "S905X", 0x21, 0x80, 0xf0 },
- { "S905W", 0x21, 0xa0, 0xf0 },
- { "S905L", 0x21, 0xc0, 0xf0 },
- { "S905M2", 0x21, 0xe0, 0xf0 },
- { "S805X", 0x21, 0x30, 0xf0 },
- { "S805Y", 0x21, 0xb0, 0xf0 },
- { "S912", 0x22, 0, 0x0 }, /* Only S912 is known for GXM */
- { "962X", 0x24, 0x10, 0xf0 },
- { "962E", 0x24, 0x20, 0xf0 },
- { "A113X", 0x25, 0x37, 0xff },
- { "A113D", 0x25, 0x22, 0xff },
- { "S905D2", 0x28, 0x10, 0xf0 },
- { "S905X2", 0x28, 0x40, 0xf0 },
- { "A311D", 0x29, 0x10, 0xf0 },
- { "S922X", 0x29, 0x40, 0xf0 },
- { "S905X3", 0x2b, 0x5, 0xf },
- };
- DECLARE_GLOBAL_DATA_PTR;
- static inline unsigned int socinfo_to_major(u32 socinfo)
- {
- return FIELD_GET(SOCINFO_MAJOR, socinfo);
- }
- static inline unsigned int socinfo_to_minor(u32 socinfo)
- {
- return FIELD_GET(SOCINFO_MINOR, socinfo);
- }
- static inline unsigned int socinfo_to_pack(u32 socinfo)
- {
- return FIELD_GET(SOCINFO_PACK, socinfo);
- }
- static inline unsigned int socinfo_to_misc(u32 socinfo)
- {
- return FIELD_GET(SOCINFO_MISC, socinfo);
- }
- static const char *socinfo_to_package_id(u32 socinfo)
- {
- unsigned int pack = socinfo_to_pack(socinfo);
- unsigned int major = socinfo_to_major(socinfo);
- int i;
- for (i = 0 ; i < ARRAY_SIZE(soc_packages) ; ++i) {
- if (soc_packages[i].major_id == major &&
- soc_packages[i].pack_id ==
- (pack & soc_packages[i].pack_mask))
- return soc_packages[i].name;
- }
- return "Unknown";
- }
- static const char *socinfo_to_soc_id(u32 socinfo)
- {
- unsigned int id = socinfo_to_major(socinfo);
- int i;
- for (i = 0 ; i < ARRAY_SIZE(soc_ids) ; ++i) {
- if (soc_ids[i].id == id)
- return soc_ids[i].name;
- }
- return "Unknown";
- }
- static void print_board_model(void)
- {
- const char *model;
- model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
- printf("Model: %s\n", model ? model : "Unknown");
- }
- int show_board_info(void)
- {
- struct regmap *regmap;
- int nodeoffset, ret;
- ofnode node;
- unsigned int socinfo;
- /* find the offset of compatible node */
- nodeoffset = fdt_node_offset_by_compatible(gd->fdt_blob, -1,
- "amlogic,meson-gx-ao-secure");
- if (nodeoffset < 0)
- return 0;
- /* check if chip-id is available */
- if (!fdt_getprop(gd->fdt_blob, nodeoffset, "amlogic,has-chip-id", NULL))
- return 0;
- /* get regmap from the syscon node */
- node = offset_to_ofnode(nodeoffset);
- regmap = syscon_node_to_regmap(node);
- if (IS_ERR(regmap)) {
- printf("%s: failed to get regmap\n", __func__);
- return 0;
- }
- /* read soc info */
- ret = regmap_read(regmap, AO_SEC_SOCINFO_OFFSET, &socinfo);
- if (ret && !socinfo) {
- printf("%s: invalid chipid value\n", __func__);
- return 0;
- }
- /* print board information */
- print_board_model();
- printf("SoC: Amlogic Meson %s (%s) Revision %x:%x (%x:%x)\n",
- socinfo_to_soc_id(socinfo),
- socinfo_to_package_id(socinfo),
- socinfo_to_major(socinfo),
- socinfo_to_minor(socinfo),
- socinfo_to_pack(socinfo),
- socinfo_to_misc(socinfo));
- return 0;
- }
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