diff options
Diffstat (limited to 'board/treeya/board.c')
| -rw-r--r-- | board/treeya/board.c | 98 |
1 files changed, 96 insertions, 2 deletions
diff --git a/board/treeya/board.c b/board/treeya/board.c index 58ae880a89..5d9430689e 100644 --- a/board/treeya/board.c +++ b/board/treeya/board.c @@ -19,9 +19,12 @@ #include "switch.h" #include "tablet_mode.h" #include "task.h" +#include "system_chip.h" #include "gpio_list.h" +static uint8_t is_psl_hibernate; + const enum gpio_signal hibernate_wake_pins[] = { GPIO_LID_OPEN, GPIO_AC_PRESENT, @@ -163,6 +166,8 @@ static int board_use_st_sensor(void) */ void board_update_sensor_config_from_sku(void) { + uint32_t sku_id = system_get_sku_id(); + if (board_is_convertible()) { /* sku_id a8-a9 use ST sensors */ if (board_use_st_sensor()) { @@ -185,6 +190,13 @@ void board_update_sensor_config_from_sku(void) gpio_set_flags(GPIO_6AXIS_INT_L, GPIO_INPUT | GPIO_PULL_DOWN); } + + if (sku_id == 160 || sku_id == 168 || sku_id == 169 || + sku_id == 190 || sku_id == 191) { + is_psl_hibernate = 0; + } else { + is_psl_hibernate = 1; + } } /* bmi160 or lsm6dsm need differenct interrupt function */ @@ -195,10 +207,92 @@ void board_bmi160_lsm6dsm_interrupt(enum gpio_signal signal) else bmi160_interrupt(signal); } - #endif +static void system_psl_type_sel(int psl_no, uint32_t flags) +{ + /* Set PSL input events' type as level or edge trigger */ + if ((flags & GPIO_INT_F_HIGH) || (flags & GPIO_INT_F_LOW)) + CLEAR_BIT(NPCX_GLUE_PSL_CTS, psl_no + 4); + else if ((flags & GPIO_INT_F_RISING) || (flags & GPIO_INT_F_FALLING)) + SET_BIT(NPCX_GLUE_PSL_CTS, psl_no + 4); + + /* + * Set PSL input events' polarity is low (high-to-low) active or + * high (low-to-high) active + */ + if (flags & GPIO_HIB_WAKE_HIGH) + SET_BIT(NPCX_DEVALT(ALT_GROUP_D), 2 * psl_no); + else + CLEAR_BIT(NPCX_DEVALT(ALT_GROUP_D), 2 * psl_no); +} + +int system_config_psl_mode(enum gpio_signal signal) +{ + int psl_no; + const struct gpio_info *g = gpio_list + signal; + + if (g->port == GPIO_PORT_D && g->mask == MASK_PIN2) /* GPIOD2 */ + psl_no = 0; + else if (g->port == GPIO_PORT_0 && (g->mask & 0x07)) /* GPIO00/01/02 */ + psl_no = GPIO_MASK_TO_NUM(g->mask) + 1; + else + return 0; + + system_psl_type_sel(psl_no, g->flags); + return 1; +} + +void system_enter_psl_mode(void) +{ + /* Configure pins from GPIOs to PSL which rely on VSBY power rail. */ + gpio_config_module(MODULE_PMU, 1); + + /* + * Only PSL_IN events can pull PSL_OUT to high and reboot ec. + * We should treat it as wake-up pin reset. + */ + NPCX_BBRAM(BBRM_DATA_INDEX_WAKE) = HIBERNATE_WAKE_PIN; + + /* + * Pull PSL_OUT (GPIO85) to low to cut off ec's VCC power rail by + * setting bit 5 of PDOUT(8). + */ + SET_BIT(NPCX_PDOUT(GPIO_PORT_8), 5); +} + +/* Hibernate function implemented by PSL (Power Switch Logic) mode. */ +void __keep __attribute__ ((noreturn)) __enter_hibernate_in_psl(void) +{ + system_enter_psl_mode(); + /* Spin and wait for PSL cuts power; should never return */ + while (1) + ; +} + void board_hibernate_late(void) { - NPCX_KBSINPU = 0x0A; + int i; + + /* + * If the SKU cannot use PSL hibernate, immediately return to go the + * non-PSL hibernate flow. + */ + if (!is_psl_hibernate) { + NPCX_KBSINPU = 0x0A; + return; + } + + for (i = 0; i < hibernate_wake_pins_used; i++) { + /* Config PSL pins setting for wake-up inputs */ + if (!system_config_psl_mode(hibernate_wake_pins[i])) + ccprintf("Invalid PSL setting in wake-up pin %d\n", i); + } + + /* Clear all pending IRQ otherwise wfi will have no affect */ + for (i = NPCX_IRQ_0 ; i < NPCX_IRQ_COUNT ; i++) + task_clear_pending_irq(i); + + __enter_hibernate_in_psl(); } + |