| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007-2009 coresystems GmbH |
| * Copyright (C) 2011 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <types.h> |
| #include <string.h> |
| #include <device/device.h> |
| #include <device/device.h> |
| #include <device/pci_def.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #if CONFIG_VGA_ROM_RUN |
| #include <x86emu/x86emu.h> |
| #endif |
| #include <pc80/mc146818rtc.h> |
| #include <arch/acpi.h> |
| #include <arch/io.h> |
| #include <arch/interrupt.h> |
| #include <boot/coreboot_tables.h> |
| #include <smbios.h> |
| #include "ec.h" |
| #include <variant/onboard.h> |
| #include <soc/gpio.h> |
| #include <bootstate.h> |
| #include <vendorcode/google/chromeos/chromeos.h> |
| |
| void mainboard_suspend_resume(void) |
| { |
| } |
| |
| #if CONFIG_VGA_ROM_RUN |
| static int int15_handler(void) |
| { |
| int res = 1; |
| |
| printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", |
| __func__, X86_AX, X86_BX, X86_CX, X86_DX); |
| |
| switch (X86_AX) { |
| case 0x5f34: |
| /* |
| * Set Panel Fitting Hook: |
| * bit 2 = Graphics Stretching |
| * bit 1 = Text Stretching |
| * bit 0 = Centering (do not set with bit1 or bit2) |
| * 0 = video bios default |
| */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0001; |
| res = 1; |
| break; |
| case 0x5f35: |
| /* |
| * Boot Display Device Hook: |
| * bit 0 = CRT |
| * bit 1 = TV |
| * bit 2 = EFP (HDMI) |
| * bit 3 = LFP (eDP)* |
| * bit 4 = CRT2 |
| * bit 5 = TV2 |
| * bit 6 = EFP2 |
| * bit 7 = LFP2 |
| */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0008; |
| res = 1; |
| break; |
| case 0x5f51: |
| /* |
| * Hook to select active LFP configuration: |
| * 00h = No LVDS, VBIOS does not enable LVDS |
| * 01h = Int-LVDS, LFP driven by integrated LVDS decoder |
| * 02h = SVDO-LVDS, LFP driven by SVDO decoder |
| * 03h = eDP, LFP Driven by Int-DisplayPort encoder |
| */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0003; |
| res = 1; |
| break; |
| case 0x5f70: |
| switch ((X86_CX >> 8) & 0xff) { |
| case 0: |
| /* Get Mux */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| case 1: |
| /* Set Mux */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| case 2: |
| /* Get SG/Non-SG mode */ |
| X86_AX = 0x005f; |
| X86_CX = 0x0000; |
| res = 1; |
| break; |
| default: |
| /* Interrupt was not handled */ |
| printk(BIOS_DEBUG, |
| "Unknown INT15 5f70 function: 0x%02x\n", |
| ((X86_CX >> 8) & 0xff)); |
| break; |
| } |
| break; |
| |
| default: |
| printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", X86_AX); |
| break; |
| } |
| return res; |
| } |
| #endif |
| |
| static void mainboard_init(device_t dev) |
| { |
| mainboard_ec_init(); |
| #if IS_ENABLED(CONFIG_BOARD_GOOGLE_NINJA) || IS_ENABLED(CONFIG_BOARD_GOOGLE_SUMO) |
| lan_init(); |
| #endif |
| } |
| |
| static int mainboard_smbios_data(device_t dev, int *handle, |
| unsigned long *current) |
| { |
| int len = 0; |
| #ifdef BOARD_TRACKPAD_NAME |
| len += smbios_write_type41( |
| current, handle, |
| BOARD_TRACKPAD_NAME, /* name */ |
| BOARD_TRACKPAD_IRQ, /* instance */ |
| BOARD_TRACKPAD_I2C_BUS, /* segment */ |
| BOARD_TRACKPAD_I2C_ADDR, /* bus */ |
| 0, /* device */ |
| 0); /* function */ |
| #endif |
| #ifdef BOARD_TOUCHSCREEN_NAME |
| len += smbios_write_type41( |
| current, handle, |
| BOARD_TOUCHSCREEN_NAME, /* name */ |
| BOARD_TOUCHSCREEN_IRQ, /* instance */ |
| BOARD_TOUCHSCREEN_I2C_BUS, /* segment */ |
| BOARD_TOUCHSCREEN_I2C_ADDR, /* bus */ |
| 0, /* device */ |
| 0); /* function */ |
| #endif |
| return len; |
| } |
| |
| // mainboard_enable is executed as first thing after |
| // enumerate_buses(). |
| |
| static void mainboard_enable(device_t dev) |
| { |
| dev->ops->init = mainboard_init; |
| dev->ops->get_smbios_data = mainboard_smbios_data; |
| dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator; |
| #if CONFIG_VGA_ROM_RUN |
| /* Install custom int15 handler for VGA OPROM */ |
| mainboard_interrupt_handlers(0x15, &int15_handler); |
| #endif |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .enable_dev = mainboard_enable, |
| }; |
| |
| static void edp_vdden_cb(void *unused) |
| { |
| ncore_select_func(SOC_DDI1_VDDEN_PAD, PAD_FUNC2); |
| } |
| |
| BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT, edp_vdden_cb, NULL); |