Move lib_$ARCH directories to arch/$ARCH/lib

[u-boot] / lib_i386 / realmode.c

diff --git a/lib_i386/realmode.c b/lib_i386/realmode.c
deleted file mode 100644 (file)
index 3c3c1fc..0000000
--- a/lib_i386/realmode.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB, daniel@omicron.se
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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.
- *
- * 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., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <asm/io.h>
-#include <asm/ptrace.h>
-#include <asm/realmode.h>
-
-
-#define REALMODE_BASE    ((char*)0x7c0)
-#define REALMODE_MAILBOX ((char*)0xe00)
-
-
-extern ulong _i386boot_realmode;
-extern ulong _i386boot_realmode_size;
-extern char realmode_enter;
-
-int realmode_setup(void)
-{
-       ulong i386boot_realmode      = (ulong)&_i386boot_realmode;
-       ulong i386boot_realmode_size = (ulong)&_i386boot_realmode_size;
-
-       /* copy the realmode switch code */
-       if (i386boot_realmode_size > (REALMODE_MAILBOX-REALMODE_BASE)) {
-               printf("realmode switch too large (%ld bytes, max is %d)\n",
-                      i386boot_realmode_size, (REALMODE_MAILBOX-REALMODE_BASE));
-               return -1;
-       }
-
-       memcpy(REALMODE_BASE, (void*)i386boot_realmode, i386boot_realmode_size);
-       asm("wbinvd\n");
-
-       return 0;
-}
-
-int enter_realmode(u16 seg, u16 off, struct pt_regs *in, struct pt_regs *out)
-{
-
-       /* setup out thin bios emulation */
-       if (bios_setup()) {
-               return -1;
-       }
-
-       if (realmode_setup()) {
-               return -1;
-       }
-
-       in->eip = off;
-       in->xcs = seg;
-       if (3>(in->esp & 0xffff)) {
-               printf("Warning: entering realmode with sp < 4 will fail\n");
-       }
-
-       memcpy(REALMODE_MAILBOX, in, sizeof(struct pt_regs));
-       asm("wbinvd\n");
-
-       __asm__ volatile (
-                "lcall $0x20,%0\n"  : :  "i" (&realmode_enter) );
-
-       asm("wbinvd\n");
-       memcpy(out, REALMODE_MAILBOX, sizeof(struct pt_regs));
-
-       return out->eax;
-}
-
-
-/* This code is supposed to access a realmode interrupt
- * it does currently not work for me */
-int enter_realmode_int(u8 lvl, struct pt_regs *in, struct pt_regs *out)
-{
-       /* place two instructions at 0x700 */
-       writeb(0xcd, 0x700);  /* int $lvl */
-       writeb(lvl, 0x701);
-       writeb(0xcb, 0x702);  /* lret */
-       asm("wbinvd\n");
-
-       enter_realmode(0x00, 0x700, in, out);
-
-       return out->eflags&1;
-}