1 files changed, 0 insertions, 114 deletions
diff --git a/src/vboot/vbnv_cmos.c b/src/vboot/vbnv_cmos.c
deleted file mode 100644
index a311fddbb1..0000000000
--- a/src/vboot/vbnv_cmos.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * 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.
- */
-
-#include <bootstate.h>
-#include <console/console.h>
-#include <types.h>
-#include <pc80/mc146818rtc.h>
-#include <vboot/vbnv.h>
-#include <vboot/vbnv_layout.h>
-
-static void clear_vbnv_battery_cutoff_flag(uint8_t *vbnv_copy)
-{
-	/*
-	 * Currently battery cutoff is done in payload stage, which does not
-	 * update backup VBNV. And doing battery cutoff will invalidate CMOS.
-	 * This means for every reboot after cutoff, read_vbnv_cmos will reload
-	 * backup VBNV and try to cutoff again, causing endless reboot loop.
-	 * So we should always clear battery cutoff flag from loaded backup.
-	 */
-	if (vbnv_copy[MISC_FLAGS_OFFSET] & MISC_FLAGS_BATTERY_CUTOFF_MASK) {
-		printk(BIOS_INFO, "VBNV: Remove battery cut-off request.\n");
-		vbnv_copy[MISC_FLAGS_OFFSET] &= ~MISC_FLAGS_BATTERY_CUTOFF_MASK;
-		regen_vbnv_crc(vbnv_copy);
-	}
-}
-
-/* Return non-zero if backup was used. */
-static int restore_from_backup(uint8_t *vbnv_copy)
-{
-	if (!IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH))
-		return 0;
-
-	printk(BIOS_INFO, "VBNV: CMOS invalid, restoring from flash\n");
-	read_vbnv_flash(vbnv_copy);
-
-	if (verify_vbnv(vbnv_copy)) {
-		clear_vbnv_battery_cutoff_flag(vbnv_copy);
-		save_vbnv_cmos(vbnv_copy);
-		printk(BIOS_INFO, "VBNV: Flash backup restored\n");
-		return 1;
-	}
-
-	printk(BIOS_INFO, "VBNV: Restore from flash failed\n");
-
-	return 0;
-}
-
-void read_vbnv_cmos(uint8_t *vbnv_copy)
-{
-	int i;
-
-	for (i = 0; i < VBOOT_VBNV_BLOCK_SIZE; i++)
-		vbnv_copy[i] = cmos_read(CONFIG_VBOOT_VBNV_OFFSET + 14 + i);
-
-	/* Verify contents before attempting a restore from backup storage. */
-	if (verify_vbnv(vbnv_copy))
-		return;
-
-	restore_from_backup(vbnv_copy);
-}
-
-void save_vbnv_cmos(const uint8_t *vbnv_copy)
-{
-	int i;
-
-	for (i = 0; i < VBOOT_VBNV_BLOCK_SIZE; i++)
-		cmos_write(vbnv_copy[i], CONFIG_VBOOT_VBNV_OFFSET + 14 + i);
-}
-
-void vbnv_init_cmos(uint8_t *vbnv_copy)
-{
-	/* If no cmos failure just defer to the normal read path for checking
-	   vbnv contents' integrity. */
-	if (!vbnv_cmos_failed())
-		return;
-
-	/* In the case of cmos failure force the backup. If backup wasn't used
-	   force the vbnv cmos to be reset. */
-	if (!restore_from_backup(vbnv_copy)) {
-		vbnv_reset(vbnv_copy);
-		/* This parallels the vboot_reference implementation. */
-		vbnv_copy[HEADER_OFFSET] = HEADER_SIGNATURE |
-			HEADER_FIRMWARE_SETTINGS_RESET |
-			HEADER_KERNEL_SETTINGS_RESET;
-		regen_vbnv_crc(vbnv_copy);
-		save_vbnv_cmos(vbnv_copy);
-	}
-}
-
-#if IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH)
-static void back_up_vbnv_cmos(void *unused)
-{
-	uint8_t vbnv_cmos[VBOOT_VBNV_BLOCK_SIZE];
-
-	/* Read current VBNV from CMOS. */
-	read_vbnv_cmos(vbnv_cmos);
-
-	/* Save to flash, will only be saved if different. */
-	save_vbnv_flash(vbnv_cmos);
-}
-BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT, back_up_vbnv_cmos, NULL);
-#endif