| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <boardid.h> |
| #include <gpio.h> |
| #include <types.h> |
| |
| uint32_t board_id(void) |
| { |
| static uint32_t id = UNDEFINED_STRAPPING_ID; |
| |
| const gpio_t pins[] = {[2] = GPIO(31), [1] = GPIO(93), [0] = GPIO(33)}; |
| |
| if (id == UNDEFINED_STRAPPING_ID) |
| id = gpio_binary_first_base3_value(pins, ARRAY_SIZE(pins)); |
| |
| return id; |
| } |
| |
| /* Some boards/revisions use one GPIO mapping and others use another. There's no real rhyme or |
| reason to it. Don't try to think about it too much... */ |
| static bool use_old_pins(void) |
| { |
| return ((CONFIG(BOARD_GOOGLE_TROGDOR) && board_id() < 2) || |
| CONFIG(BOARD_GOOGLE_LAZOR) || |
| (CONFIG(BOARD_GOOGLE_POMPOM) && board_id() < 1)); |
| } |
| |
| uint32_t ram_code(void) |
| { |
| static uint32_t id = UNDEFINED_STRAPPING_ID; |
| |
| const gpio_t old_pins[] = {[2] = GPIO(13), [1] = GPIO(19), [0] = GPIO(29)}; |
| const gpio_t pins[] = {[2] = GPIO(5), [1] = GPIO(3), [0] = GPIO(1)}; |
| |
| if (id == UNDEFINED_STRAPPING_ID) { |
| if (use_old_pins()) |
| id = gpio_base2_value(old_pins, ARRAY_SIZE(old_pins)); |
| else |
| id = gpio_base2_value(pins, ARRAY_SIZE(pins)); |
| } |
| |
| return id; |
| } |
| |
| static uint8_t panel_id(void) |
| { |
| const gpio_t pins[] = {[1] = GPIO(11), [0] = GPIO(4)}; |
| |
| return gpio_binary_first_base3_value(pins, ARRAY_SIZE(pins)); |
| } |
| |
| uint32_t sku_id(void) |
| { |
| static uint32_t id = UNDEFINED_STRAPPING_ID; |
| |
| const gpio_t old_pins[] = {[2] = GPIO(20), [1] = GPIO(90), [0] = GPIO(105)}; |
| const gpio_t pins[] = {[2] = GPIO(2), [1] = GPIO(90), [0] = GPIO(58)}; |
| |
| if (id == UNDEFINED_STRAPPING_ID) { |
| if (use_old_pins()) |
| id = gpio_binary_first_base3_value(old_pins, ARRAY_SIZE(old_pins)); |
| else |
| id = gpio_binary_first_base3_value(pins, ARRAY_SIZE(pins)); |
| |
| if (CONFIG(TROGDOR_HAS_MIPI_PANEL)) |
| id = panel_id() << 8 | id; |
| } |
| |
| return id; |
| } |