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-rw-r--r--arch/x86/lib/bios_disk.S70
1 files changed, 0 insertions, 70 deletions
diff --git a/arch/x86/lib/bios_disk.S b/arch/x86/lib/bios_disk.S
deleted file mode 100644
index cce33e67af..0000000000
--- a/arch/x86/lib/bios_disk.S
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright (C) 2009 Juergen Beisert, Pengutronix
- *
- * Mostly stolen from the GRUB2 project
- * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008 Free Software Foundation, Inc.
- *
- * 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; either version 2 of
- * the License, or (at your option) any later version.
- *
- * 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.
- *
- *
- */
-
-/**
- * @file
- * @brief Do BIOS calls to load or save data from disks
- *
- * @note These functions are running in flat and real mode. Due to some
- * other restrictions these routines must running from an address
- * space below 0x10000
- */
-
-/*
- * int bios_disk_rw_int13_extensions (int ah, int drive, void *dap)
- *
- * Call IBM/MS INT13 Extensions (int 13 %ah=AH) for DRIVE. DAP
- * is passed for disk address packet. If an error occurs, return
- * non-zero, otherwise zero.
- */
- .section .boot.text.bios_disk_rw_int13_extensions, "ax"
- .code32
- .globl bios_disk_rw_int13_extensions
- .type bios_disk_rw_int13_extensions, @function
-
- .extern prot_to_real
- .extern real_to_prot
-
-bios_disk_rw_int13_extensions:
- pushl %ebp
- pushl %esi
-
- /* compute the address of disk_address_packet */
- movw %cx, %si
- xorw %cx, %cx
- shrl $4, %ecx /* save the segment to cx */
-
- movb %al, %dh
- call prot_to_real /* enter real mode right now */
-
- .code16
- movb %dh, %ah
- movw %cx, %ds
- int $0x13 /* do the operation */
- movb %ah, %dl /* save return value */
- /* back to protected mode */
- DATA32 call real_to_prot
-
- .code32
- movb %dl, %al /* return value in %eax */
-
- popl %esi
- popl %ebp
-
- ret