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/*
* This file is part of the coreboot project.
*
* Copyright 2013 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 <console/console.h>
#include <cpu/x86/cache.h>
#include <device/pci_def.h>
#include <cpu/x86/smm.h>
#include <southbridge/intel/common/pmbase.h>
#include <southbridge/intel/common/gpio.h>
#include "pmutil.h"
void alt_gpi_mask(u16 clr, u16 set)
{
u16 alt_gp = read_pmbase16(ALT_GP_SMI_EN);
alt_gp &= ~clr;
alt_gp |= set;
write_pmbase16(ALT_GP_SMI_EN, alt_gp);
}
void gpe0_mask(u32 clr, u32 set)
{
u32 gpe0 = read_pmbase32(GPE0_EN);
gpe0 &= ~clr;
gpe0 |= set;
write_pmbase32(GPE0_EN, gpe0);
}
/**
* @brief read and clear PM1_STS
* @return PM1_STS register
*/
u16 reset_pm1_status(void)
{
u16 reg16 = read_pmbase16(PM1_STS);
/* set status bits are cleared by writing 1 to them */
write_pmbase16(PM1_STS, reg16);
return reg16;
}
void dump_pm1_status(u16 pm1_sts)
{
printk(BIOS_SPEW, "PM1_STS: ");
if (pm1_sts & (1 << 15)) printk(BIOS_SPEW, "WAK ");
if (pm1_sts & (1 << 14)) printk(BIOS_SPEW, "PCIEXPWAK ");
if (pm1_sts & (1 << 11)) printk(BIOS_SPEW, "PRBTNOR ");
if (pm1_sts & (1 << 10)) printk(BIOS_SPEW, "RTC ");
if (pm1_sts & (1 << 8)) printk(BIOS_SPEW, "PWRBTN ");
if (pm1_sts & (1 << 5)) printk(BIOS_SPEW, "GBL ");
if (pm1_sts & (1 << 4)) printk(BIOS_SPEW, "BM ");
if (pm1_sts & (1 << 0)) printk(BIOS_SPEW, "TMROF ");
printk(BIOS_SPEW, "\n");
int reg16 = read_pmbase16(PM1_EN);
printk(BIOS_SPEW, "PM1_EN: %x\n", reg16);
}
/**
* @brief read and clear SMI_STS
* @return SMI_STS register
*/
u32 reset_smi_status(void)
{
u32 reg32;
reg32 = read_pmbase32(SMI_STS);
/* set status bits are cleared by writing 1 to them */
write_pmbase32(SMI_STS, reg32);
return reg32;
}
void dump_smi_status(u32 smi_sts)
{
printk(BIOS_DEBUG, "SMI_STS: ");
if (smi_sts & (1 << 26)) printk(BIOS_DEBUG, "SPI ");
if (smi_sts & (1 << 21)) printk(BIOS_DEBUG, "MONITOR ");
if (smi_sts & (1 << 20)) printk(BIOS_DEBUG, "PCI_EXP_SMI ");
if (smi_sts & (1 << 18)) printk(BIOS_DEBUG, "INTEL_USB2 ");
if (smi_sts & (1 << 17)) printk(BIOS_DEBUG, "LEGACY_USB2 ");
if (smi_sts & (1 << 16)) printk(BIOS_DEBUG, "SMBUS_SMI ");
if (smi_sts & (1 << 15)) printk(BIOS_DEBUG, "SERIRQ_SMI ");
if (smi_sts & (1 << 14)) printk(BIOS_DEBUG, "PERIODIC ");
if (smi_sts & (1 << 13)) printk(BIOS_DEBUG, "TCO ");
if (smi_sts & (1 << 12)) printk(BIOS_DEBUG, "DEVMON ");
if (smi_sts & (1 << 11)) printk(BIOS_DEBUG, "MCSMI ");
if (smi_sts & (1 << 10)) printk(BIOS_DEBUG, "GPI ");
if (smi_sts & (1 << 9)) printk(BIOS_DEBUG, "GPE0 ");
if (smi_sts & (1 << 8)) printk(BIOS_DEBUG, "PM1 ");
if (smi_sts & (1 << 6)) printk(BIOS_DEBUG, "SWSMI_TMR ");
if (smi_sts & (1 << 5)) printk(BIOS_DEBUG, "APM ");
if (smi_sts & (1 << 4)) printk(BIOS_DEBUG, "SLP_SMI ");
if (smi_sts & (1 << 3)) printk(BIOS_DEBUG, "LEGACY_USB ");
if (smi_sts & (1 << 2)) printk(BIOS_DEBUG, "BIOS ");
printk(BIOS_DEBUG, "\n");
}
/**
* @brief read and clear GPE0_STS
* @return GPE0_STS register
*/
u64 reset_gpe0_status(void)
{
u32 reg_h, reg_l;
reg_l = read_pmbase32(GPE0_STS);
reg_h = read_pmbase32(GPE0_STS + 4);
/* set status bits are cleared by writing 1 to them */
write_pmbase32(GPE0_STS, reg_l);
write_pmbase32(GPE0_STS + 4, reg_h);
return (((u64)reg_h) << 32) | reg_l;
}
void dump_gpe0_status(u64 gpe0_sts)
{
int i;
printk(BIOS_DEBUG, "GPE0_STS: ");
if (gpe0_sts & (1LL << 32)) printk(BIOS_DEBUG, "USB6 ");
for (i=31; i>= 16; i--) {
if (gpe0_sts & (1 << i)) printk(BIOS_DEBUG, "GPIO%d ", (i-16));
}
if (gpe0_sts & (1 << 14)) printk(BIOS_DEBUG, "USB4 ");
if (gpe0_sts & (1 << 13)) printk(BIOS_DEBUG, "PME_B0 ");
if (gpe0_sts & (1 << 12)) printk(BIOS_DEBUG, "USB3 ");
if (gpe0_sts & (1 << 11)) printk(BIOS_DEBUG, "PME ");
if (gpe0_sts & (1 << 10)) printk(BIOS_DEBUG, "EL_SCI/BATLOW ");
if (gpe0_sts & (1 << 9)) printk(BIOS_DEBUG, "PCI_EXP ");
if (gpe0_sts & (1 << 8)) printk(BIOS_DEBUG, "RI ");
if (gpe0_sts & (1 << 7)) printk(BIOS_DEBUG, "SMB_WAK ");
if (gpe0_sts & (1 << 6)) printk(BIOS_DEBUG, "TCO_SCI ");
if (gpe0_sts & (1 << 5)) printk(BIOS_DEBUG, "USB5 ");
if (gpe0_sts & (1 << 4)) printk(BIOS_DEBUG, "USB2 ");
if (gpe0_sts & (1 << 3)) printk(BIOS_DEBUG, "USB1 ");
if (gpe0_sts & (1 << 2)) printk(BIOS_DEBUG, "SWGPE ");
if (gpe0_sts & (1 << 1)) printk(BIOS_DEBUG, "HOT_PLUG ");
if (gpe0_sts & (1 << 0)) printk(BIOS_DEBUG, "THRM ");
printk(BIOS_DEBUG, "\n");
}
/**
* @brief read and clear TCOx_STS
* @return TCOx_STS registers
*/
u32 reset_tco_status(void)
{
u32 reg32;
reg32 = read_pmbase32(TCO1_STS);
/*
* set status bits are cleared by writing 1 to them, but don't
* clear BOOT_STS before SECOND_TO_STS.
*/
write_pmbase32(TCO1_STS, reg32 & ~BOOT_STS);
if (reg32 & BOOT_STS)
write_pmbase32(TCO1_STS, BOOT_STS);
return reg32;
}
void dump_tco_status(u32 tco_sts)
{
printk(BIOS_DEBUG, "TCO_STS: ");
if (tco_sts & (1 << 20)) printk(BIOS_DEBUG, "SMLINK_SLV ");
if (tco_sts & (1 << 18)) printk(BIOS_DEBUG, "BOOT ");
if (tco_sts & (1 << 17)) printk(BIOS_DEBUG, "SECOND_TO ");
if (tco_sts & (1 << 16)) printk(BIOS_DEBUG, "INTRD_DET ");
if (tco_sts & (1 << 12)) printk(BIOS_DEBUG, "DMISERR ");
if (tco_sts & (1 << 10)) printk(BIOS_DEBUG, "DMISMI ");
if (tco_sts & (1 << 9)) printk(BIOS_DEBUG, "DMISCI ");
if (tco_sts & (1 << 8)) printk(BIOS_DEBUG, "BIOSWR ");
if (tco_sts & (1 << 7)) printk(BIOS_DEBUG, "NEWCENTURY ");
if (tco_sts & (1 << 3)) printk(BIOS_DEBUG, "TIMEOUT ");
if (tco_sts & (1 << 2)) printk(BIOS_DEBUG, "TCO_INT ");
if (tco_sts & (1 << 1)) printk(BIOS_DEBUG, "SW_TCO ");
if (tco_sts & (1 << 0)) printk(BIOS_DEBUG, "NMI2SMI ");
printk(BIOS_DEBUG, "\n");
}
/**
* @brief Set the EOS bit
*/
void smi_set_eos(void)
{
u8 reg8;
reg8 = read_pmbase8(SMI_EN);
reg8 |= EOS;
write_pmbase8(SMI_EN, reg8);
}
void dump_alt_gp_smi_status(u16 alt_gp_smi_sts)
{
int i;
printk(BIOS_DEBUG, "ALT_GP_SMI_STS: ");
for (i=15; i>= 0; i--) {
if (alt_gp_smi_sts & (1 << i)) printk(BIOS_DEBUG, "GPI%d ", i);
}
printk(BIOS_DEBUG, "\n");
}
/**
* @brief read and clear ALT_GP_SMI_STS
* @return ALT_GP_SMI_STS register
*/
u16 reset_alt_gp_smi_status(void)
{
u16 reg16;
reg16 = read_pmbase16(ALT_GP_SMI_STS);
/* set status bits are cleared by writing 1 to them */
write_pmbase16(ALT_GP_SMI_STS, reg16);
return reg16;
}
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