diff options
Diffstat (limited to 'src/arch/x86/lib/ebda.c')
-rw-r--r-- | src/arch/x86/lib/ebda.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/src/arch/x86/lib/ebda.c b/src/arch/x86/lib/ebda.c deleted file mode 100644 index 47dfbdb1e9..0000000000 --- a/src/arch/x86/lib/ebda.c +++ /dev/null @@ -1,52 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 The Chromium OS 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc. - */ - -#include <stdint.h> -#include <string.h> -#include <arch/io.h> -#include <arch/ebda.h> -#include <arch/acpi.h> - -void setup_ebda(u32 low_memory_size, u16 ebda_segment, u16 ebda_size) -{ - /* Skip in S3 resume path */ - if (acpi_is_wakeup_s3()) - return; - - if (!low_memory_size || !ebda_segment || !ebda_size) - return; - - /* clear BIOS DATA AREA */ - memset((void *)X86_BDA_BASE, 0, X86_BDA_SIZE); - - write16(X86_EBDA_LOWMEM, (low_memory_size >> 10)); - write16(X86_EBDA_SEGMENT, ebda_segment); - - /* Set up EBDA */ - memset((void *)((uintptr_t)ebda_segment << 4), 0, ebda_size); - write16((void*)((uintptr_t)ebda_segment << 4), (ebda_size >> 10)); -} - -void setup_default_ebda(void) -{ - setup_ebda(DEFAULT_EBDA_LOWMEM, - DEFAULT_EBDA_SEGMENT, - DEFAULT_EBDA_SIZE); -} |