1 files changed, 0 insertions, 80 deletions
diff --git a/arch/x86/boot/prepare_uboot.c b/arch/x86/boot/prepare_uboot.c
deleted file mode 100644
index 9cac594a46..0000000000
--- a/arch/x86/boot/prepare_uboot.c
+++ /dev/null
@@ -1,80 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-// SPDX-FileCopyrightText: 1991,1992 Linus Torvalds
-// SPDX-FileCopyrightText: 2007 rPath, Inc.
-
-/*
- * Prepare the machine for transition to protected mode.
- */
-#include <asm/segment.h>
-#include <asm/modes.h>
-#include <io.h>
-#include "boot.h"
-
-/* be aware of: */
-THIS_IS_REALMODE_CODE
-
-/*
- * While we are in flat mode, we can't handle interrupts. But we can't
- * switch them off for ever in the PIC, because we need them again while
- * entering real mode code again and again....
- */
-static void __bootcode realmode_switch_hook(void)
-{
-	asm volatile("cli");
-	outb(0x80, 0x70); /* Disable NMI */
-	io_delay();
-}
-
-/*
- * Reset IGNNE# if asserted in the FPU.
- */
-static void __bootcode reset_coprocessor(void)
-{
-	outb(0, 0xf0);
-	io_delay();
-	outb(0, 0xf1);
-	io_delay();
-}
-
-/**
- * Setup and register the global descriptor table (GDT)
- *
- * @note This is for the first time only
- */
-static void __bootcode setup_gdt(void)
-{
-	/* Xen HVM incorrectly stores a pointer to the gdt_ptr, instead
-	   of the gdt_ptr contents.  Thus, make it static so it will
-	   stay in memory, at least long enough that we switch to the
-	   proper kernel GDT. */
-	static struct gdt_ptr __bootdata gdt_ptr;
-
-	gdt_ptr.len = gdt_size - 1;
-	gdt_ptr.ptr = (uint32_t)&gdt + (ds() << 4);
-
-	asm volatile("lgdtl %0" : : "m" (gdt_ptr));
-}
-
-static char a20_message[] __bootdata = "A20 gate not responding, unable to boot...\n";
-
-/*
- * Actual invocation sequence
- */
-void __bootcode start_pre_uboot(void)
-{
-	/* Hook before leaving real mode, also disables interrupts */
-	realmode_switch_hook();
-
-	/* Enable the A20 gate */
-	if (enable_a20()) {
-		boot_puts(a20_message);
-		die();
-	}
-
-	/* Reset coprocessor (IGNNE#) */
-	reset_coprocessor();
-
-	setup_gdt();
-	/* Actual transition to protected mode... */
-	protected_mode_jump();
-}