sb/intel/i82801{g,j}x: Remove unused smi.c files

Now that all targets featuring these southbridges use SMM_TSEG these
files are unused.

Change-Id: Ic3a1d790f3595e98a8d33e6e8274cb72ad356a89
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/30018
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/southbridge/intel/i82801gx/smi.c b/src/southbridge/intel/i82801gx/smi.c
deleted file mode 100644
index 5618db7..0000000
--- a/src/southbridge/intel/i82801gx/smi.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * 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
- * 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 <device/device.h>
-#include <device/pci.h>
-#include <console/console.h>
-#include <arch/io.h>
-#include <arch/acpi.h>
-#include <cpu/x86/cache.h>
-#include <cpu/x86/smm.h>
-#include <string.h>
-#include <southbridge/intel/common/pmutil.h>
-#include "i82801gx.h"
-
-/* I945 */
-#define SMRAM		0x9d
-#define   D_OPEN	(1 << 6)
-#define   D_CLS		(1 << 5)
-#define   D_LCK		(1 << 4)
-#define   G_SMRAME	(1 << 3)
-#define   C_BASE_SEG	((0 << 2) | (1 << 1) | (0 << 0))
-
-/* While we read PMBASE dynamically in case it changed, let's
- * initialize it with a sane value
- */
-static u16 pmbase = DEFAULT_PMBASE;
-
-extern uint8_t smm_relocation_start, smm_relocation_end;
-static void *default_smm_area = NULL;
-
-static void smm_relocate(void)
-{
-	u32 smi_en;
-	u16 pm1_en;
-
-	printk(BIOS_DEBUG, "Initializing SMM handler...");
-
-	pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f, 0)), 0x40) & 0xfffc;
-	printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", pmbase);
-
-	smi_en = inl(pmbase + SMI_EN);
-	if (smi_en & APMC_EN) {
-		printk(BIOS_INFO, "SMI# handler already enabled?\n");
-		return;
-	}
-
-	default_smm_area = backup_default_smm_area();
-
-	/* copy the SMM relocation code */
-	memcpy((void *)0x38000, &smm_relocation_start,
-			&smm_relocation_end - &smm_relocation_start);
-	wbinvd();
-
-	printk(BIOS_DEBUG, "\n");
-	dump_smi_status(reset_smi_status());
-	dump_pm1_status(reset_pm1_status());
-	dump_gpe0_status(reset_gpe0_status());
-	dump_alt_gp_smi_status(reset_alt_gp_smi_status());
-	dump_tco_status(reset_tco_status());
-
-	/* Enable SMI generation:
-	 *  - on TCO events
-	 *  - on APMC writes (io 0xb2)
-	 *  - on writes to SLP_EN (sleep states)
-	 *  - on writes to GBL_RLS (bios commands)
-	 * No SMIs:
-	 *  - on microcontroller writes (io 0x62/0x66)
-	 */
-
-	smi_en = 0; /* reset SMI enables */
-
-#if 0
-	smi_en |= LEGACY_USB2_EN | LEGACY_USB_EN;
-#endif
-	smi_en |= TCO_EN;
-	smi_en |= APMC_EN;
-#if DEBUG_PERIODIC_SMIS
-	/* Set DEBUG_PERIODIC_SMIS in i82801gx.h to debug using
-	 * periodic SMIs.
-	 */
-	smi_en |= PERIODIC_EN;
-#endif
-	smi_en |= SLP_SMI_EN;
-	smi_en |= BIOS_EN;
-
-	/* The following need to be on for SMIs to happen */
-	smi_en |= EOS | GBL_SMI_EN;
-
-	outl(smi_en, pmbase + SMI_EN);
-
-	pm1_en = 0;
-	pm1_en |= PWRBTN_EN;
-	pm1_en |= GBL_EN;
-	outw(pm1_en, pmbase + PM1_EN);
-
-	/**
-	 * There are several methods of raising a controlled SMI# via
-	 * software, among them:
-	 *  - Writes to io 0xb2 (APMC)
-	 *  - Writes to the Local Apic ICR with Delivery mode SMI.
-	 *
-	 * Using the local apic is a bit more tricky. According to
-	 * AMD Family 11 Processor BKDG no destination shorthand must be
-	 * used.
-	 * The whole SMM initialization is quite a bit hardware specific, so
-	 * I'm not too worried about the better of the methods at the moment
-	 */
-
-	/* raise an SMI interrupt */
-	printk(BIOS_SPEW, "  ... raise SMI#\n");
-	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;
-
-
-	/* if we're resuming from S3, the SMM code is already in place,
-	 * so don't copy it again to keep the current SMM state */
-
-	if (!acpi_is_wakeup_s3()) {
-		/* enable the SMM memory window */
-		pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-					D_OPEN | G_SMRAME | C_BASE_SEG);
-
-		/* copy the real SMM handler */
-		memcpy((void *)0xa0000, _binary_smm_start,
-			_binary_smm_end - _binary_smm_start);
-		wbinvd();
-	}
-
-	/* close the SMM memory window and enable normal SMM */
-	pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-			G_SMRAME | C_BASE_SEG);
-}
-
-void smm_init(void)
-{
-	/* Put SMM code to 0xa0000 */
-	smm_install();
-
-	/* Put relocation code to 0x38000 and relocate SMBASE */
-	smm_relocate();
-
-	/* We're done. Make sure SMIs can happen! */
-	smi_set_eos();
-}
-
-void smm_init_completion(void)
-{
-	restore_default_smm_area(default_smm_area);
-}
-
-void smm_lock(void)
-{
-	/* LOCK the SMM memory window and enable normal SMM.
-	 * After running this function, only a full reset can
-	 * make the SMM registers writable again.
-	 */
-	printk(BIOS_DEBUG, "Locking SMM.\n");
-	pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-			D_LCK | G_SMRAME | C_BASE_SEG);
-}
diff --git a/src/southbridge/intel/i82801jx/smi.c b/src/southbridge/intel/i82801jx/smi.c
deleted file mode 100644
index 7ab5c28..0000000
--- a/src/southbridge/intel/i82801jx/smi.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2008-2009 coresystems GmbH
- *               2012 secunet Security Networks AG
- *
- * 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 <device/device.h>
-#include <device/pci.h>
-#include <console/console.h>
-#include <arch/io.h>
-#include <arch/acpi.h>
-#include <cpu/x86/cache.h>
-#include <cpu/x86/smm.h>
-#include <string.h>
-#include <southbridge/intel/common/pmutil.h>
-#include "i82801jx.h"
-
-/* I945/GM45 */
-#define SMRAM		0x9d
-#define   D_OPEN	(1 << 6)
-#define   D_CLS		(1 << 5)
-#define   D_LCK		(1 << 4)
-#define   G_SMRAME	(1 << 3)
-#define   C_BASE_SEG	((0 << 2) | (1 << 1) | (0 << 0))
-
-/* While we read PMBASE dynamically in case it changed, let's
- * initialize it with a sane value
- */
-static u16 pmbase = DEFAULT_PMBASE;
-
-extern uint8_t smm_relocation_start, smm_relocation_end;
-static void *default_smm_area = NULL;
-
-static void smm_relocate(void)
-{
-	u32 smi_en;
-	u16 pm1_en;
-
-	printk(BIOS_DEBUG, "Initializing SMM handler...");
-
-	pmbase = pci_read_config16(dev_find_slot(0, PCI_DEVFN(0x1f, 0)), D31F0_PMBASE) & 0xfffc;
-	printk(BIOS_SPEW, " ... pmbase = 0x%04x\n", pmbase);
-
-	smi_en = inl(pmbase + SMI_EN);
-	if (smi_en & GBL_SMI_EN) {
-		printk(BIOS_INFO, "SMI# handler already enabled?\n");
-		return;
-	}
-
-	default_smm_area = backup_default_smm_area();
-
-	/* copy the SMM relocation code */
-	memcpy((void *)0x38000, &smm_relocation_start,
-			&smm_relocation_end - &smm_relocation_start);
-	wbinvd();
-
-	printk(BIOS_DEBUG, "\n");
-	dump_smi_status(reset_smi_status());
-	dump_pm1_status(reset_pm1_status());
-	dump_gpe0_status(reset_gpe0_status());
-	dump_alt_gp_smi_status(reset_alt_gp_smi_status());
-	dump_tco_status(reset_tco_status());
-
-	/* Enable SMI generation:
-	 *  - on TCO events
-	 *  - on APMC writes (io 0xb2)
-	 *  - on writes to GBL_RLS (bios commands)
-	 * No SMIs:
-	 *  - on microcontroller writes (io 0x62/0x66)
-	 */
-
-	smi_en = 0; /* reset SMI enables */
-
-	smi_en |= TCO_EN;
-	smi_en |= APMC_EN;
-#if DEBUG_PERIODIC_SMIS
-	/* Set DEBUG_PERIODIC_SMIS in i82801jx.h to debug using
-	 * periodic SMIs.
-	 */
-	smi_en |= PERIODIC_EN;
-#endif
-	smi_en |= BIOS_EN;
-
-	/* The following need to be on for SMIs to happen */
-	smi_en |= EOS | GBL_SMI_EN;
-
-	outl(smi_en, pmbase + SMI_EN);
-
-	pm1_en = 0;
-	pm1_en |= PWRBTN_EN;
-	pm1_en |= GBL_EN;
-	outw(pm1_en, pmbase + PM1_EN);
-
-	/**
-	 * There are several methods of raising a controlled SMI# via
-	 * software, among them:
-	 *  - Writes to io 0xb2 (APMC)
-	 *  - Writes to the Local Apic ICR with Delivery mode SMI.
-	 *
-	 * Using the local apic is a bit more tricky. According to
-	 * AMD Family 11 Processor BKDG no destination shorthand must be
-	 * used.
-	 * The whole SMM initialization is quite a bit hardware specific, so
-	 * I'm not too worried about the better of the methods at the moment
-	 */
-
-	/* raise an SMI interrupt */
-	printk(BIOS_SPEW, "  ... raise SMI#\n");
-	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;
-
-
-	/* if we're resuming from S3, the SMM code is already in place,
-	 * so don't copy it again to keep the current SMM state */
-
-	if (!acpi_is_wakeup_s3()) {
-		/* enable the SMM memory window */
-		pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-					D_OPEN | G_SMRAME | C_BASE_SEG);
-
-		/* copy the real SMM handler */
-		memcpy((void *)0xa0000, _binary_smm_start,
-			_binary_smm_end - _binary_smm_start);
-		wbinvd();
-	}
-
-	/* close the SMM memory window and enable normal SMM */
-	pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-			G_SMRAME | C_BASE_SEG);
-}
-
-void smm_init(void)
-{
-	/* Put SMM code to 0xa0000 */
-	smm_install();
-
-	/* Put relocation code to 0x38000 and relocate SMBASE */
-	smm_relocate();
-
-	/* We're done. Make sure SMIs can happen! */
-	smi_set_eos();
-}
-
-void smm_init_completion(void)
-{
-	restore_default_smm_area(default_smm_area);
-}
-
-void smm_lock(void)
-{
-	/* LOCK the SMM memory window and enable normal SMM.
-	 * After running this function, only a full reset can
-	 * make the SMM registers writable again.
-	 */
-	printk(BIOS_DEBUG, "Locking SMM.\n");
-	pci_write_config8(dev_find_slot(0, PCI_DEVFN(0, 0)), SMRAM,
-			D_LCK | G_SMRAME | C_BASE_SEG);
-}