16c851fa9a
Done with sed and God Lines. Only done for C-like code for now. Change-Id: I1d42341e9cf5e35142f9cc8e97a03e442655bc13 Signed-off-by: Angel Pons <th3fanbus@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/40176 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* This file is part of the coreboot project. */
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#include <boardid.h>
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#include <console/console.h>
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#include <gpio.h>
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#include <soc/saradc.h>
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static const int id_readings[] = {
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/* ID : Volts : ADC value : Bucket */
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/* == ===== ========= ========== */
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#if CONFIG(BOARD_GOOGLE_KEVIN)
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/* 0 : 0.109V: 62 : 0 - 91 */ 91,
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#else
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/* 0 : 0.074V: 42 : 0 - 81 */ 81,
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#endif
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/* 1 : 0.211V: 120 : 82 - 150 */ 150,
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/* 2 : 0.319V: 181 : 151 - 211 */ 211,
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/* 3 : 0.427V: 242 : 212 - 274 */ 274,
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/* 4 : 0.542V: 307 : 275 - 342 */ 342,
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/* 5 : 0.666V: 378 : 343 - 411 */ 411,
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/* 6 : 0.781V: 444 : 412 - 477 */ 477,
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/* 7 : 0.900V: 511 : 478 - 545 */ 545,
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/* 8 : 1.023V: 581 : 546 - 613 */ 613,
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/* 9 : 1.137V: 646 : 614 - 675 */ 675,
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/* 10 : 1.240V: 704 : 676 - 733 */ 733,
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/* 11 : 1.343V: 763 : 734 - 795 */ 795,
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/* 12 : 1.457V: 828 : 796 - 861 */ 861,
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/* 13 : 1.576V: 895 : 862 - 925 */ 925,
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/* 14 : 1.684V: 956 : 926 - 989 */ 989,
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/* 15 : 1.800V: 1023 : 990 - 1023 */ 1023
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};
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_Static_assert(ARRAY_SIZE(id_readings) == 16, "Yo' messed up da table, bruh!");
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static int cached_board_id = -1;
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static int cached_ram_id = -1;
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static uint32_t get_index(uint32_t channel, int *cached_id)
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{
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int i;
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int adc_reading;
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if (*cached_id != -1)
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return *cached_id;
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adc_reading = get_saradc_value(channel);
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for (i = 0; i < ARRAY_SIZE(id_readings); i++) {
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if (adc_reading <= id_readings[i]) {
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printk(BIOS_DEBUG, "ADC reading %d, ID %d\n",
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adc_reading, i);
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*cached_id = i;
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return i;
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}
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}
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die("Read impossible value (> 1023) from 10-bit ADC!");
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}
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uint32_t board_id(void)
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{
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return get_index(1, &cached_board_id);
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}
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uint32_t ram_code(void)
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{
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return get_index(0, &cached_ram_id);
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}
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uint32_t sku_id(void)
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{
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if (!CONFIG(GRU_BASEBOARD_SCARLET))
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return UNDEFINED_STRAPPING_ID;
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static uint32_t sku_id = UNDEFINED_STRAPPING_ID;
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if (sku_id != UNDEFINED_STRAPPING_ID)
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return sku_id;
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gpio_t pins[3] = {[2] = GPIO(3, D, 6), [1] = GPIO(3, D, 5),
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[0] = GPIO(3, D, 4)}; /* GPIO3_D4 is LSB */
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sku_id = gpio_pullup_base2_value(pins, ARRAY_SIZE(pins));
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return sku_id;
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}
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