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/*
* 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,
};
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