/* * This file is part of the coreboot project. * * Copyright (C) 2007-2009 coresystems GmbH * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. * * 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 <types.h> #include <string.h> #include <device/device.h> #include <device/pci_def.h> #include <device/pci_ops.h> #include <console/console.h> #if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL #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 "hda_verb.h" #include "onboard.h" #include "ec.h" #include <southbridge/intel/bd82x6x/pch.h> #include <smbios.h> #include <device/pci.h> #include <ec/quanta/it8518/ec.h> void mainboard_suspend_resume(void) { /* Call SMM finalize() handlers before resume */ outb(0xcb, 0xb2); /* Stout EC needs to be put back in ACPI mode */ ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER); } #if defined(CONFIG_PCI_OPTION_ROM_RUN_REALMODE) && CONFIG_PCI_OPTION_ROM_RUN_REALMODE static int int15_handler(struct eregs *regs) { int res=-1; printk(BIOS_DEBUG, "%s: INT15 function %04x!\n", __func__, regs->eax & 0xffff); switch(regs->eax & 0xffff) { 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 */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffffff00; regs->ecx |= 0x00; /* Use video bios default */ res = 0; break; case 0x5f35: /* * Boot Display Device Hook: * bit 0 = CRT * bit 1 = TV (eDP) * bit 2 = EFP * bit 3 = LFP * bit 4 = CRT2 * bit 5 = TV2 (eDP) * bit 6 = EFP2 * bit 7 = LFP2 */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffff0000; regs->ecx |= 0x0000; /* Use video bios default */ res = 0; 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 */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffff0000; regs->ecx |= 0x0001; res = 0; break; case 0x5f70: switch ((regs->ecx >> 8) & 0xff) { case 0: /* Get Mux */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffff0000; regs->ecx |= 0x0000; res = 0; break; case 1: /* Set Mux */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffff0000; regs->ecx |= 0x0000; res = 0; break; case 2: /* Get SG/Non-SG mode */ regs->eax &= 0xffff0000; regs->eax |= 0x005f; regs->ecx &= 0xffff0000; regs->ecx |= 0x0000; res = 0; break; default: /* Interrupt was not handled */ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n", ((regs->ecx >> 8) & 0xff)); return 0; } break; default: printk(BIOS_DEBUG, "Unknown INT15 function %04x!\n", regs->eax & 0xffff); break; } return res; } #endif #if defined(CONFIG_PCI_OPTION_ROM_RUN_YABEL) && CONFIG_PCI_OPTION_ROM_RUN_YABEL static int int15_handler(void) { printk(BIOS_DEBUG, "%s: AX=%04x BX=%04x CX=%04x DX=%04x\n", __func__, M.x86.R_AX, M.x86.R_BX, M.x86.R_CX, M.x86.R_DX); switch (M.x86.R_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) */ M.x86.R_AX = 0x005f; M.x86.R_CL = 0x00; break; case 0x5f35: /* * Boot Display Device Hook: * bit 0 = CRT * bit 1 = TV (eDP) * bit 2 = EFP * bit 3 = LFP * bit 4 = CRT2 * bit 5 = TV2 (eDP) * bit 6 = EFP2 * bit 7 = LFP2 */ M.x86.R_AX = 0x005f; M.x86.R_CX = 0x0000; /* Use video bios default */ 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 */ M.x86.R_AX = 0x005f; M.x86.R_CX = 1; break; case 0x5f70: switch (M.x86.R_CH) { case 0: /* Get Mux */ M.x86.R_AX = 0x005f; M.x86.R_CL = 0; break; case 1: /* Set Mux */ M.x86.R_AX = 0x005f; M.x86.R_CX = 0; break; case 2: /* Get SG/Non-SG mode */ M.x86.R_AX = 0x005f; M.x86.R_CX = 0; break; default: /* Interrupt was not handled */ printk(BIOS_DEBUG, "Unknown INT15 5f70 function: 0x%02x\n", M.x86.R_CH); return 0; } break; default: /* Interrupt was not handled */ printk(BIOS_DEBUG, "Unknown INT15 function: 0x%04x\n", M.x86.R_AX); return 0; } /* Interrupt handled */ return 1; } #endif #if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE static void int15_install(void) { #if CONFIG_PCI_OPTION_ROM_RUN_YABEL typedef int (* yabel_handleIntFunc)(void); extern yabel_handleIntFunc yabel_intFuncArray[256]; yabel_intFuncArray[0x15] = int15_handler; #endif #ifdef CONFIG_PCI_OPTION_ROM_RUN_REALMODE mainboard_interrupt_handlers(0x15, &int15_handler); #endif } #endif /* Audio Setup */ extern const u32 * cim_verb_data; extern u32 cim_verb_data_size; extern const u32 * pc_beep_verbs; extern u32 pc_beep_verbs_size; 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 = mainboard_pc_beep_verbs_size; } static void mainboard_init(device_t dev) { struct device *ethernet_dev = NULL; /* Initialize the Embedded Controller */ stout_ec_init(); /* * Battery life time - LAN PCIe should enter ASPM L1 to save * power when LAN connection is idle. * enable CLKREQ: LAN pci config space 0x81h=01 */ ethernet_dev = dev_find_device(STOUT_NIC_VENDOR_ID, STOUT_NIC_DEVICE_ID, dev); if (ethernet_dev != NULL) pci_write_config8(ethernet_dev, 0x81, 0x01); } // mainboard_enable is executed as first thing after // enumerate_buses(). static void mainboard_enable(device_t dev) { dev->ops->init = mainboard_init; #if CONFIG_PCI_OPTION_ROM_RUN_YABEL || CONFIG_PCI_OPTION_ROM_RUN_REALMODE /* Install custom int15 handler for VGA OPROM */ int15_install(); #endif verb_setup(); } struct chip_operations mainboard_ops = { .enable_dev = mainboard_enable, };