amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright 2018 Google Inc. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | */ |
| 15 | |
Shelley Chen | 467cce4 | 2018-03-07 14:22:28 -0800 | [diff] [blame] | 16 | #include <arch/cpu.h> |
| 17 | #include <assert.h> |
| 18 | #include <baseboard/variants.h> |
Furquan Shaikh | f5b7e80 | 2018-05-07 14:42:27 -0700 | [diff] [blame^] | 19 | #include <cbfs.h> |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 20 | #include <chip.h> |
Furquan Shaikh | f5b7e80 | 2018-05-07 14:42:27 -0700 | [diff] [blame^] | 21 | #include <commonlib/cbfs_serialized.h> |
| 22 | #include <compiler.h> |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 23 | #include <device/device.h> |
| 24 | #include <ec/google/chromeec/ec.h> |
Shelley Chen | 467cce4 | 2018-03-07 14:22:28 -0800 | [diff] [blame] | 25 | #include <smbios.h> |
| 26 | #include <soc/ramstage.h> |
| 27 | #include <string.h> |
amanda_hwang | 04ccd5f | 2018-03-16 13:43:52 +0800 | [diff] [blame] | 28 | #include <variant/sku.h> |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 29 | |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 30 | uint32_t variant_board_sku(void) |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 31 | { |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 32 | static uint32_t sku_id = SKU_UNKNOWN; |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 33 | uint32_t id; |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 34 | |
| 35 | if (sku_id != SKU_UNKNOWN) |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 36 | return sku_id; |
| 37 | if (google_chromeec_cbi_get_sku_id(&id)) |
| 38 | return SKU_UNKNOWN; |
| 39 | sku_id = id; |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 40 | |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 41 | return sku_id; |
| 42 | } |
| 43 | |
| 44 | void variant_devtree_update(void) |
| 45 | { |
| 46 | /* Override dev tree settings per board */ |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 47 | uint32_t sku_id = variant_board_sku(); |
Elyes HAOUAS | d129d43 | 2018-05-04 20:23:33 +0200 | [diff] [blame] | 48 | struct device *root = SA_DEV_ROOT; |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 49 | config_t *cfg = root->chip_info; |
| 50 | switch (sku_id) { |
| 51 | case SKU_1_VAYNE: |
Amanda Huang | 7024e66 | 2018-04-10 14:09:36 +0800 | [diff] [blame] | 52 | case SKU_2_VAYNE: |
amanda_hwang | b3b47e1 | 2018-03-08 11:04:40 +0800 | [diff] [blame] | 53 | cfg->usb2_ports[5].enable = 0;//rear camera |
| 54 | break; |
| 55 | default: |
| 56 | break; |
| 57 | } |
| 58 | } |
Shelley Chen | 467cce4 | 2018-03-07 14:22:28 -0800 | [diff] [blame] | 59 | |
| 60 | const char *smbios_mainboard_sku(void) |
| 61 | { |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 62 | static char sku_str[14]; /* sku{0..4294967295} */ |
Shelley Chen | 467cce4 | 2018-03-07 14:22:28 -0800 | [diff] [blame] | 63 | |
Zhuohao Lee | f7b5955 | 2018-03-17 05:00:49 +0800 | [diff] [blame] | 64 | snprintf(sku_str, sizeof(sku_str), "sku%u", variant_board_sku()); |
Shelley Chen | 467cce4 | 2018-03-07 14:22:28 -0800 | [diff] [blame] | 65 | |
| 66 | return sku_str; |
| 67 | } |
Furquan Shaikh | f5b7e80 | 2018-05-07 14:42:27 -0700 | [diff] [blame^] | 68 | |
| 69 | #define OEM_UNKNOWN 0xff |
| 70 | |
| 71 | /* |
| 72 | * Read OEM ID from EC using cbi commands. |
| 73 | * Return value: |
| 74 | * Success = OEM ID read from EC |
| 75 | * Failure = OEM_UNKNOWN (0xff) |
| 76 | */ |
| 77 | static uint8_t read_oem_id(void) |
| 78 | { |
| 79 | static uint8_t oem_id = OEM_UNKNOWN; |
| 80 | uint32_t id; |
| 81 | |
| 82 | if (oem_id != OEM_UNKNOWN) |
| 83 | return oem_id; |
| 84 | |
| 85 | if (google_chromeec_cbi_get_oem_id(&id)) |
| 86 | return OEM_UNKNOWN; |
| 87 | |
| 88 | if (id > OEM_UNKNOWN) { |
| 89 | printk(BIOS_ERR, "%s: OEM ID too big %u!\n", __func__, id); |
| 90 | return OEM_UNKNOWN; |
| 91 | } |
| 92 | |
| 93 | oem_id = id; |
| 94 | printk(BIOS_DEBUG, "%s: OEM ID=%d\n", __func__, oem_id); |
| 95 | |
| 96 | return oem_id; |
| 97 | } |
| 98 | |
| 99 | /* "oem.bin" in cbfs contains array of records using the following structure. */ |
| 100 | struct oem_mapping { |
| 101 | uint8_t oem_id; |
| 102 | char oem_name[10]; |
| 103 | } __packed; |
| 104 | |
| 105 | /* Local buffer to read "oem.bin" */ |
| 106 | static char oem_bin_data[200]; |
| 107 | |
| 108 | const char *smbios_mainboard_manufacturer(void) |
| 109 | { |
| 110 | uint8_t oem_id = read_oem_id(); |
| 111 | const struct oem_mapping *oem_entry = (void *)&oem_bin_data; |
| 112 | size_t oem_data_size; |
| 113 | size_t curr = 0; |
| 114 | static const char *manuf; |
| 115 | |
| 116 | if (manuf) |
| 117 | return manuf; |
| 118 | |
| 119 | /* If OEM ID cannot be determined, return default manuf string. */ |
| 120 | if (oem_id == OEM_UNKNOWN) |
| 121 | return CONFIG_MAINBOARD_SMBIOS_MANUFACTURER; |
| 122 | |
| 123 | oem_data_size = cbfs_boot_load_file("oem.bin", oem_bin_data, |
| 124 | sizeof(oem_bin_data), |
| 125 | CBFS_TYPE_RAW); |
| 126 | |
| 127 | while ((curr < oem_data_size) && |
| 128 | ((oem_data_size - curr) >= sizeof(*oem_entry))) { |
| 129 | if (oem_id == oem_entry->oem_id) { |
| 130 | manuf = oem_entry->oem_name; |
| 131 | break; |
| 132 | } |
| 133 | curr += sizeof(*oem_entry); |
| 134 | oem_entry++; |
| 135 | } |
| 136 | |
| 137 | if (manuf == NULL) |
| 138 | manuf = CONFIG_MAINBOARD_SMBIOS_MANUFACTURER; |
| 139 | |
| 140 | return manuf; |
| 141 | } |