Angel Pons | 8a3453f | 2020-04-02 23:48:19 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 2 | |
Arthur Heymans | 9eb0b19 | 2023-11-07 11:00:21 +0100 | [diff] [blame^] | 3 | #include <build.h> |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 4 | #include <types.h> |
| 5 | #include <string.h> |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 6 | #include <device/device.h> |
| 7 | #include <device/smbus.h> |
| 8 | #include <smbios.h> |
| 9 | #include <console/console.h> |
Vladimir Serbinenko | 537283d | 2015-05-21 09:51:00 +0200 | [diff] [blame] | 10 | #include <version.h> |
Vladimir Serbinenko | a31a838 | 2014-02-15 19:56:51 +0100 | [diff] [blame] | 11 | #include "lenovo.h" |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 12 | |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 13 | #define ERROR_STRING "*INVALID*" |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 14 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 15 | static struct device *at24rf08c_find_bank(u8 bank) |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 16 | { |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 17 | struct device *dev; |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 18 | dev = dev_find_slot_on_smbus(1, 0x54 | bank); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 19 | if (!dev) |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 20 | printk(BIOS_WARNING, "EEPROM not found\n"); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 21 | return dev; |
| 22 | } |
| 23 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 24 | static int at24rf08c_read_byte(struct device *dev, u8 addr) |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 25 | { |
| 26 | int t = -1; |
| 27 | int j; |
| 28 | |
Elyes HAOUAS | 88607a4 | 2018-10-05 10:36:45 +0200 | [diff] [blame] | 29 | /* After a register write AT24RF08C (which we issued in init function) |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 30 | sometimes stops responding. Retry several times in case of failure. |
| 31 | */ |
| 32 | for (j = 0; j < 100; j++) { |
| 33 | t = smbus_read_byte(dev, addr); |
| 34 | if (t >= 0) |
| 35 | return t; |
Paul Menzel | 25fc8d1 | 2014-02-02 11:48:48 +0100 | [diff] [blame] | 36 | } |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 37 | |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 38 | return t; |
| 39 | } |
| 40 | |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 41 | static void at24rf08c_read_string_dev(struct device *dev, u8 start, |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 42 | u8 len, char *result) |
| 43 | { |
| 44 | int i; |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 45 | for (i = 0; i < len; i++) { |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 46 | int t = at24rf08c_read_byte(dev, start + i); |
| 47 | |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 48 | if (t < 0x20 || t > 0x7f) { |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 49 | memcpy(result, ERROR_STRING, sizeof(ERROR_STRING)); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 50 | return; |
| 51 | } |
| 52 | result[i] = t; |
| 53 | } |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 54 | result[len] = '\0'; |
| 55 | } |
| 56 | |
| 57 | static void at24rf08c_read_string(u8 bank, u8 start, u8 len, char *result) |
| 58 | { |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 59 | struct device *dev; |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 60 | |
| 61 | dev = at24rf08c_find_bank(bank); |
Edward O'Callaghan | 1ab41db | 2014-11-28 03:31:42 +1100 | [diff] [blame] | 62 | if (dev == NULL) { |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 63 | printk(BIOS_WARNING, "EEPROM not found\n"); |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 64 | memcpy(result, ERROR_STRING, sizeof(ERROR_STRING)); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 65 | return; |
| 66 | } |
| 67 | |
| 68 | at24rf08c_read_string_dev(dev, start, len, result); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 69 | } |
| 70 | |
| 71 | const char *smbios_mainboard_serial_number(void) |
| 72 | { |
| 73 | static char result[12]; |
| 74 | static int already_read; |
| 75 | |
| 76 | if (already_read) |
| 77 | return result; |
| 78 | |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 79 | memset(result, 0, sizeof(result)); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 80 | at24rf08c_read_string(0, 0x2e, 7, result); |
| 81 | |
| 82 | already_read = 1; |
| 83 | return result; |
| 84 | } |
| 85 | |
Vladimir Serbinenko | a31a838 | 2014-02-15 19:56:51 +0100 | [diff] [blame] | 86 | const char *lenovo_mainboard_partnumber(void) |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 87 | { |
| 88 | static char result[12]; |
| 89 | static int already_read; |
| 90 | |
| 91 | if (already_read) |
| 92 | return result; |
| 93 | |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 94 | memset(result, 0, sizeof(result)); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 95 | at24rf08c_read_string(0, 0x27, 7, result); |
| 96 | |
| 97 | already_read = 1; |
| 98 | return result; |
| 99 | } |
| 100 | |
Vladimir Serbinenko | a31a838 | 2014-02-15 19:56:51 +0100 | [diff] [blame] | 101 | const char *smbios_mainboard_product_name(void) |
| 102 | { |
| 103 | return lenovo_mainboard_partnumber(); |
| 104 | } |
| 105 | |
Nico Huber | ebd8a4f | 2017-11-01 09:49:16 +0100 | [diff] [blame] | 106 | void smbios_system_set_uuid(u8 *uuid) |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 107 | { |
| 108 | static char result[16]; |
Martin Roth | 38ddbfb | 2019-10-23 21:41:00 -0600 | [diff] [blame] | 109 | unsigned int i; |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 110 | static int already_read; |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 111 | struct device *dev; |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 112 | const int remap[16] = { |
| 113 | /* UUID byteswap. */ |
| 114 | 3, 2, 1, 0, 5, 4, 7, 6, 8, 9, 10, 11, 12, 13, 14, 15 |
| 115 | }; |
| 116 | |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 117 | if (already_read) { |
Elyes HAOUAS | 9b865b4 | 2016-10-03 22:19:16 +0200 | [diff] [blame] | 118 | memcpy(uuid, result, 16); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 119 | return; |
| 120 | } |
| 121 | |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 122 | memset(result, 0, sizeof(result)); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 123 | |
| 124 | dev = dev_find_slot_on_smbus(1, 0x56); |
Edward O'Callaghan | 1ab41db | 2014-11-28 03:31:42 +1100 | [diff] [blame] | 125 | if (dev == NULL) { |
Edward O'Callaghan | 07d89a0 | 2014-11-28 02:48:00 +1100 | [diff] [blame] | 126 | printk(BIOS_WARNING, "EEPROM not found\n"); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 127 | already_read = 1; |
Elyes HAOUAS | 9b865b4 | 2016-10-03 22:19:16 +0200 | [diff] [blame] | 128 | memset(uuid, 0, 16); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 129 | return; |
| 130 | } |
| 131 | |
| 132 | for (i = 0; i < 16; i++) { |
| 133 | int t; |
| 134 | int j; |
| 135 | /* After a register write AT24RF08C (which we issued in init function) sometimes stops responding. |
| 136 | Retry several times in case of failure. |
| 137 | */ |
| 138 | for (j = 0; j < 100; j++) { |
| 139 | t = smbus_read_byte(dev, 0x12 + i); |
| 140 | if (t >= 0) |
| 141 | break; |
| 142 | } |
| 143 | if (t < 0) { |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 144 | memset(result, 0, sizeof(result)); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 145 | break; |
| 146 | } |
| 147 | result[remap[i]] = t; |
| 148 | } |
| 149 | |
| 150 | already_read = 1; |
| 151 | |
Elyes HAOUAS | 9b865b4 | 2016-10-03 22:19:16 +0200 | [diff] [blame] | 152 | memcpy(uuid, result, 16); |
Vladimir Serbinenko | 62adc4c | 2014-01-23 09:06:08 +0100 | [diff] [blame] | 153 | } |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 154 | |
| 155 | const char *smbios_mainboard_version(void) |
| 156 | { |
| 157 | static char result[100]; |
| 158 | static int already_read; |
Edward O'Callaghan | 2c9d2cf | 2014-10-27 23:29:29 +1100 | [diff] [blame] | 159 | struct device *dev; |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 160 | int len; |
| 161 | |
| 162 | if (already_read) |
| 163 | return result; |
| 164 | |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 165 | memset(result, 0, sizeof(result)); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 166 | |
| 167 | dev = at24rf08c_find_bank(2); |
Edward O'Callaghan | 1ab41db | 2014-11-28 03:31:42 +1100 | [diff] [blame] | 168 | if (dev == NULL) { |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 169 | memcpy(result, ERROR_STRING, sizeof(ERROR_STRING)); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 170 | return result; |
| 171 | } |
| 172 | |
| 173 | len = at24rf08c_read_byte(dev, 0x26) - 2; |
| 174 | if (len < 0 || len > sizeof(result) - 1) { |
Elyes HAOUAS | af56a77 | 2020-07-22 20:36:20 +0200 | [diff] [blame] | 175 | memcpy(result, ERROR_STRING, sizeof(ERROR_STRING)); |
Vladimir Serbinenko | ed74dcd | 2014-08-27 23:22:50 +0200 | [diff] [blame] | 176 | return result; |
| 177 | } |
| 178 | |
| 179 | at24rf08c_read_string_dev(dev, 0x27, len, result); |
| 180 | |
| 181 | already_read = 1; |
| 182 | return result; |
| 183 | } |
Vladimir Serbinenko | 537283d | 2015-05-21 09:51:00 +0200 | [diff] [blame] | 184 | |
| 185 | const char *smbios_mainboard_bios_version(void) |
| 186 | { |
Vladimir Serbinenko | 537283d | 2015-05-21 09:51:00 +0200 | [diff] [blame] | 187 | /* Satisfy thinkpad_acpi. */ |
| 188 | if (strlen(CONFIG_LOCALVERSION)) |
| 189 | return "CBET4000 " CONFIG_LOCALVERSION; |
| 190 | |
Arthur Heymans | 9eb0b19 | 2023-11-07 11:00:21 +0100 | [diff] [blame^] | 191 | return "CBET4000 " COREBOOT_VERSION; |
Vladimir Serbinenko | 537283d | 2015-05-21 09:51:00 +0200 | [diff] [blame] | 192 | } |
Vladimir Serbinenko | 0afdec4 | 2015-05-30 23:08:26 +0200 | [diff] [blame] | 193 | |
| 194 | const char *smbios_mainboard_manufacturer(void) |
| 195 | { |
| 196 | return "LENOVO"; |
| 197 | } |