| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi.h> |
| #include <device/mmio.h> |
| #include <console/console.h> |
| #include <cpu/x86/smm.h> |
| #include "ec.h" |
| #include <ec/google/chromeec/ec.h> |
| #include <ec/google/chromeec/smm.h> |
| #include <soc/nvs.h> |
| #include <soc/pm.h> |
| #include <soc/gpio.h> |
| |
| #include <variant/onboard.h> |
| |
| /* The wake gpio is SUS_GPIO[0]. */ |
| #define WAKE_GPIO_EN SUS_GPIO_EN0 |
| #define GPIO_SUS7_WAKE_MASK (1 << 12) |
| #define GPIO_SUS1_WAKE_MASK (1 << 13) |
| |
| /* |
| * The entire 32-bit ALT_GPIO_SMI register is passed as a parameter. Note, that |
| * this includes the enable bits in the lower 16 bits. |
| */ |
| void mainboard_smi_gpi(uint32_t alt_gpio_smi) |
| { |
| if (alt_gpio_smi & (1 << EC_SMI_GPI)) |
| chromeec_smi_process_events(); |
| } |
| |
| void mainboard_smi_sleep(uint8_t slp_typ) |
| { |
| void *addr; |
| uint32_t mask; |
| |
| /* Disable USB charging if required */ |
| switch (slp_typ) { |
| case ACPI_S3: |
| if (gnvs->s3u0 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 0, USB_CHARGE_MODE_DISABLED); |
| if (gnvs->s3u1 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 1, USB_CHARGE_MODE_DISABLED); |
| |
| /* Enable wake events */ |
| google_chromeec_set_wake_mask(MAINBOARD_EC_S3_WAKE_EVENTS); |
| /* Enable wake pin in GPE block. */ |
| enable_gpe(WAKE_GPIO_EN); |
| break; |
| case ACPI_S5: |
| if (gnvs->s5u0 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 0, USB_CHARGE_MODE_DISABLED); |
| if (gnvs->s5u1 == 0) |
| google_chromeec_set_usb_charge_mode( |
| 1, USB_CHARGE_MODE_DISABLED); |
| |
| /* Enable wake events */ |
| google_chromeec_set_wake_mask(MAINBOARD_EC_S5_WAKE_EVENTS); |
| |
| /* Disabling wake from SUS_GPIO1 (TOUCH INT) and |
| * SUS_GPIO7 (TRACKPAD INT) in North bank as they are not |
| * valid S5 wake sources |
| */ |
| addr = (void *)(IO_BASE_ADDRESS + COMMUNITY_OFFSET_GPNORTH + |
| GPIO_WAKE_MASK_REG0); |
| mask = ~(GPIO_SUS1_WAKE_MASK | GPIO_SUS7_WAKE_MASK); |
| write32(addr, read32(addr) & mask); |
| |
| break; |
| } |
| |
| /* Disable SCI and SMI events */ |
| google_chromeec_set_smi_mask(0); |
| google_chromeec_set_sci_mask(0); |
| |
| /* Clear pending events that may trigger immediate wake */ |
| while (google_chromeec_get_event() != EC_HOST_EVENT_NONE) |
| ; |
| |
| /* Set LPC lines to low power in S3/S5. */ |
| if ((slp_typ == ACPI_S3) || (slp_typ == ACPI_S5)) { |
| lpc_set_low_power(); |
| } |
| } |
| |
| int mainboard_smi_apmc(uint8_t apmc) |
| { |
| chromeec_smi_apmc(apmc, MAINBOARD_EC_SCI_EVENTS, MAINBOARD_EC_SMI_EVENTS); |
| return 0; |
| } |