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* fix a minor power state issue in the ich7 smm handler

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* move mainboard dependent code into a mainboard SMI handler.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3982 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer
2009-03-06 19:52:36 +00:00
committed by Stefan Reinauer
parent 43b29cf891
commit 3b387458b5
6 changed files with 81 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/southbridge/intel/i82801gx/i82801gx_smi.c
View File

@@ -1,7 +1,7 @@
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 coresystems GmbH
* Copyright (C) 2008-2009 coresystems GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as

40
src/southbridge/intel/i82801gx/i82801gx_smihandler.c
View File

@@ -31,9 +31,10 @@
#define DEBUG_SMI
#define ACPI_DISABLE 0x1e
#define ACPI_ENABLE 0xe1
#define APM_CNT 0xb2
#define APM_STS 0xb3
#define ACPI_DISABLE 0x1e
#define ACPI_ENABLE 0xe1
/* I945 */
#define SMRAM 0x9d
@@ -241,37 +242,18 @@ static void dump_tco_status(u32 tco_sts)
*/
#include "../../../northbridge/intel/i945/pcie_config.c"
void southbridge_io_trap_handler(int smif)
int southbridge_io_trap_handler(int smif)
{
u8 reg8;
global_nvs_t *gnvs = (global_nvs_t *)0xc00;
printk_debug("SMI function trap 0x%x: ", smif);
switch (smif) {
case 0x32:
printk_debug("OS Init\n");
//gnvs->smif = 0;
break;
case 0xd5:
printk_debug("Set Brightness\n");
reg8 = gnvs->brtl;
printk_debug("brtl: %x\n", reg8);
outb(0x17, 0x66);
outb(reg8, 0x62);
//gnvs->smif = 0;
break;
case 0xd6:
printk_debug("Get Brightness\n");
outb(0x17, 0x66);
reg8 = inb(0x62);
printk_debug("brtl: %x\n", reg8);
gnvs->brtl = reg8;
//gnvs->smif = 0;
break;
default:
printk_debug("Unknown function\n");
break;
/* Not handled */
return 0;
}
/* On success, the IO Trap Handler returns 0
@@ -281,6 +263,7 @@ void southbridge_io_trap_handler(int smif)
* see what's going on.
*/
//gnvs->smif = 0;
return 1; /* IO trap handled */
}
/**
@@ -423,12 +406,13 @@ void southbridge_smi_handler(unsigned int node, smm_state_save_area_t *state_sav
*/
/* Write back to the SLP register to cause the
* originally intended event again.
* originally intended event again. We need to set BIT13
* (SLP_EN) though to make the sleep happen.
*/
reg32 = inl(pmbase + 0x04);
printk_debug("SMI#: SLP = 0x%08x\n");
printk_debug("SMI#: SLP = 0x%08x\n", reg32);
printk_debug("SMI#: Powering off.\n");
outl(reg32, pmbase + 0x04);
outl(reg32 | (1 << 13), pmbase + 0x04);
}
}