| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2012 secunet Security Networks AG |
| * |
| * 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. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <arch/io.h> |
| //#include <pc80/mc146818rtc.h> |
| #include <device/device.h> |
| #include <console/console.h> |
| #if CONFIG_VGA_ROM_RUN |
| #include <arch/interrupt.h> |
| #include <x86emu/x86emu.h> |
| #endif |
| #include <pc80/keyboard.h> |
| #include <ec/acpi/ec.h> |
| #include "hda_verb.h" |
| |
| #if CONFIG_GENERATE_ACPI_TABLES |
| #include "cstates.c" /* Include it, as the linker won't find |
| the overloaded weak function in there. */ |
| #endif |
| |
| |
| #if CONFIG_VGA_ROM_RUN |
| static int int15_handler(void) |
| { |
| enum { |
| BOOT_DISPLAY_DEFAULT = 0, |
| BOOT_DISPLAY_CRT = (1 << 0), |
| BOOT_DISPLAY_TV = (1 << 1), |
| BOOT_DISPLAY_EFP = (1 << 2), |
| BOOT_DISPLAY_LFP = (1 << 3), |
| BOOT_DISPLAY_CRT2 = (1 << 4), |
| BOOT_DISPLAY_TV2 = (1 << 5), |
| BOOT_DISPLAY_EFP2 = (1 << 6), |
| BOOT_DISPLAY_LFP2 = (1 << 7), |
| }; |
| enum { |
| PANEL_FIT_DEFAULT = 0, |
| PANEL_FIT_CENTERING = (1 << 0), |
| PANEL_FIT_TXT_STRETCH = (1 << 1), |
| PANEL_FIT_GFX_STRETCH = (1 << 2), |
| }; |
| |
| switch (X86_AX) { |
| case 0x5f34: |
| /* Set Panel Fitting Hook */ |
| X86_AX = 0x005f; |
| X86_CX = PANEL_FIT_CENTERING; |
| break; |
| case 0x5f35: |
| /* Boot Display Device Hook */ |
| X86_AX = 0x005f; |
| X86_CX = BOOT_DISPLAY_DEFAULT; /* Select automatically. */ |
| break; |
| case 0x5f40: |
| /* Boot Panel Type Hook */ |
| /* Contrary to what EMGD's user's guide says, |
| this _alters_ the behavior of the Video BIOS. */ |
| /* LCD panel type is SIO GPIO40-43. |
| It's controlled by a DIP switch but was always |
| set to 4 while only values of 5 and 6 worked. */ |
| X86_AX = 0x005f; |
| X86_CX = (inb(0x60f) & 0x0f) + 1; |
| break; |
| case 0x5f70: |
| /* Sandybridge boards return 0 here. */ |
| case 0x5f14: |
| case 0x5f21: |
| case 0x5f22: |
| case 0x5f49: |
| /* No documentation found. */ |
| default: |
| /* Interrupt was not handled. */ |
| printk(BIOS_DEBUG, |
| "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", __func__, |
| X86_AX, X86_BX, X86_CX, X86_DX); |
| return 0; |
| } |
| |
| /* Interrupt handled. */ |
| return 1; |
| } |
| |
| #endif |
| |
| static void verb_setup(void) |
| { |
| cim_verb_data = mainboard_cim_verb_data; |
| cim_verb_data_size = sizeof(mainboard_cim_verb_data); |
| pc_beep_verbs = mainboard_pc_beep_verbs; |
| pc_beep_verbs_size = ARRAY_SIZE(mainboard_pc_beep_verbs); |
| } |
| |
| static void ec_setup(void) |
| { |
| /* Thermal limits? Values are from ectool's ram dump. */ |
| ec_write(0xd1, 0x57); /* CPUH */ |
| ec_write(0xd2, 0xc9); /* CPUL */ |
| ec_write(0xd4, 0x64); /* SYSH */ |
| ec_write(0xd5, 0xc9); /* SYSL */ |
| |
| send_ec_command(0x04); /* Set_SMI_Enable */ |
| send_ec_command(0xab); /* Set_ACPI_Disable */ |
| send_ec_command(0xac); /* Clr_SYS_Flag? well, why not? */ |
| send_ec_command(0xad); /* Set_Thml_Value */ |
| } |
| |
| static void mainboard_enable(device_t dev) |
| { |
| ec_setup(); |
| verb_setup(); |
| #if CONFIG_VGA_ROM_RUN |
| /* Install custom int15 handler for VGA OPROM */ |
| mainboard_interrupt_handlers(0x15, &int15_handler); |
| #endif |
| |
| /* We have no driver for the embedded controller since the firmware |
| does most of the job. Hence, initialize keyboards here. */ |
| pc_keyboard_init(NULL); |
| } |
| |
| struct chip_operations mainboard_ops = { |
| .enable_dev = mainboard_enable, |
| }; |
| |