| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <acpi/acpi.h> |
| #include <arch/io.h> |
| #include <console/console.h> |
| #include <ec/ec.h> |
| #include <ec/google/chromeec/ec.h> |
| #include <intelblocks/lpc_lib.h> |
| #include <variant/ec.h> |
| |
| static void ramstage_ec_init(void) |
| { |
| const struct google_chromeec_event_info info = { |
| .log_events = MAINBOARD_EC_LOG_EVENTS, |
| .sci_events = MAINBOARD_EC_SCI_EVENTS, |
| .s3_wake_events = MAINBOARD_EC_S3_WAKE_EVENTS, |
| .s5_wake_events = MAINBOARD_EC_S5_WAKE_EVENTS, |
| .s0ix_wake_events = MAINBOARD_EC_S0IX_WAKE_EVENTS, |
| }; |
| |
| printk(BIOS_ERR, "mainboard: EC init\n"); |
| |
| google_chromeec_events_init(&info, acpi_is_wakeup_s3()); |
| } |
| |
| static void bootblock_ec_init(void) |
| { |
| uint16_t ec_ioport_base; |
| size_t ec_ioport_size; |
| |
| /* |
| * Set up LPC decoding for the ChromeEC I/O port ranges: |
| * - Ports 62/66, 60/64, and 200->208 |
| * - ChromeEC specific communication I/O ports. |
| */ |
| lpc_enable_fixed_io_ranges(LPC_IOE_EC_62_66 | LPC_IOE_KBC_60_64 |
| | LPC_IOE_LGE_200); |
| google_chromeec_ioport_range(&ec_ioport_base, &ec_ioport_size); |
| lpc_open_pmio_window(ec_ioport_base, ec_ioport_size); |
| } |
| |
| void mainboard_ec_init(void) |
| { |
| if (CONFIG(EC_GOOGLE_CHROMEEC)) { |
| if (ENV_RAMSTAGE) |
| ramstage_ec_init(); |
| else if (ENV_BOOTBLOCK) |
| bootblock_ec_init(); |
| } else if (ENV_BOOTBLOCK) { |
| /* |
| * Set up LPC decoding for the ChromeEC I/O port ranges: |
| * - Ports 62/66, 60/64, and 200->208 |
| * - ChromeEC specific communication I/O ports. |
| */ |
| lpc_enable_fixed_io_ranges(LPC_IOE_EC_62_66 | LPC_IOE_KBC_60_64 |
| | LPC_IOE_LGE_200); |
| } |
| |
| if (CONFIG(GLK_INTEL_EC)) { |
| printk(BIOS_ERR, "S3 Hack Enable ACPI mode: outb(0xaa,0x66)\n"); |
| outb(0xaa, 0x66); |
| printk(BIOS_INFO, "Hack to turn on the CPU fan\n"); |
| outb(0x81, 0x66); |
| outb(0x44, 0x62); |
| outb(0x32, 0x62); |
| /* Need delay here, hence second outb */ |
| outb(0x32, 0x62); |
| outb(0x1a, 0x66); |
| } |
| } |