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SMM for AMD K8 Part 1/2

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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>




git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6201 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer
2010-12-18 23:29:37 +00:00
committed by Stefan Reinauer
parent 405721d45c
commit cadc545838
26 changed files with 563 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/southbridge/intel/i82801gx/i82801gx.h
View File

@@ -38,18 +38,16 @@
#ifndef __ACPI__
#define DEBUG_PERIODIC_SMIS 0
#if !defined(ASSEMBLY)
#if !defined(ASSEMBLY) && !defined(__ROMCC__)
#if !defined(__PRE_RAM__)
#include "chip.h"
extern void i82801gx_enable(device_t dev);
#endif
void i82801gx_enable_usbdebug(unsigned int port);
#endif
#if defined(__PRE_RAM__) && !defined(__ROMCC__) && !defined(ASSEMBLY)
#else
void enable_smbus(void);
int smbus_read_byte(unsigned device, unsigned address);
#endif
void i82801gx_enable_usbdebug(unsigned int port);
#endif
#define MAINBOARD_POWER_OFF 0
#define MAINBOARD_POWER_ON 1

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

@@ -27,6 +27,7 @@
#include <pc80/i8259.h>
#include <arch/io.h>
#include <arch/ioapic.h>
#include <cpu/cpu.h>
#include "i82801gx.h"
#define NMI_OFF 0
@@ -335,7 +336,6 @@ static void enable_clock_gating(void)
#if CONFIG_HAVE_SMI_HANDLER
static void i82801gx_lock_smm(struct device *dev)
{
void smm_lock(void);
#if TEST_SMM_FLASH_LOCKDOWN
u8 reg8;
#endif

9
src/southbridge/intel/i82801gx/smi.c
View File

@@ -318,8 +318,17 @@ static void smm_relocate(void)
outb(0x00, 0xb2);
}
static int smm_handler_copied = 0;
static void smm_install(void)
{
/* The first CPU running this gets to copy the SMM handler. But not all
* of them.
*/
if (smm_handler_copied)
return;
smm_handler_copied = 1;
/* enable the SMM memory window */
pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
D_OPEN | G_SMRAME | C_BASE_SEG);