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authorGraeme Russ <graeme.russ@gmail.com>2011-04-13 19:43:28 +1000
committerGraeme Russ <graeme.russ@gmail.com>2011-04-13 19:43:28 +1000
commitfea25720013f84427a0ba8833a38614fcaf488ba (patch)
tree59399e99054261e245a1f2f2dbb478adad1d49ab /arch/i386/cpu/start.S
parentdbf7115a326fa70ac3e4ca87497c7e21c6642b45 (diff)
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x86: Rename i386 to x86
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
Diffstat (limited to 'arch/i386/cpu/start.S')
-rw-r--r--arch/i386/cpu/start.S132
1 files changed, 0 insertions, 132 deletions
diff --git a/arch/i386/cpu/start.S b/arch/i386/cpu/start.S
deleted file mode 100644
index 2124a42..0000000
--- a/arch/i386/cpu/start.S
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * U-boot - i386 Startup Code
- *
- * (C) Copyright 2008-2011
- * Graeme Russ, <graeme.russ@gmail.com>
- *
- * (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 <config.h>
-#include <version.h>
-#include <asm/global_data.h>
-#include <asm/processor-flags.h>
-
-.section .text
-.code32
-.globl _start
-.type _start, @function
-.globl _i386boot_start
-_i386boot_start:
- /*
- * This is the fail safe 32-bit bootstrap entry point. The
- * following code is not executed from a cold-reset (actually, a
- * lot of it is, but from real-mode after cold reset. It is
- * repeated here to put the board into a state as close to cold
- * reset as necessary)
- */
- cli
- cld
-
- /* Turn of cache (this might require a 486-class CPU) */
- movl %cr0, %eax
- orl $(X86_CR0_NW | X86_CR0_CD), %eax
- movl %eax, %cr0
- wbinvd
-
- /* Tell 32-bit code it is being entered from an in-RAM copy */
- movw $GD_FLG_WARM_BOOT, %bx
-_start:
- /* This is the 32-bit cold-reset entry point */
-
- /* Load the segement registes to match the gdt loaded in start16.S */
- movl $0x18, %eax
- movw %ax, %fs
- movw %ax, %ds
- movw %ax, %gs
- movw %ax, %es
- movw %ax, %ss
-
- /* Clear the interupt vectors */
- lidt blank_idt_ptr
-
- /* Early platform init (setup gpio, etc ) */
- jmp early_board_init
-.globl early_board_init_ret
-early_board_init_ret:
-
- /* Initialise Cache-As-RAM */
- jmp car_init
-.globl car_init_ret
-car_init_ret:
- /*
- * We now have CONFIG_SYS_CAR_SIZE bytes of Cache-As-RAM (or SRAM,
- * or fully initialised SDRAM - we really don't care which)
- * starting at CONFIG_SYS_CAR_ADDR to be used as a temporary stack
- */
- movl $CONFIG_SYS_INIT_SP_ADDR, %esp
-
- /* Set parameter to board_init_f() to boot flags */
- xorl %eax, %eax
- movw %bx, %ax
-
- /* Enter, U-boot! */
- call board_init_f
-
- /* indicate (lack of) progress */
- movw $0x85, %ax
- jmp die
-
-.globl relocate_code
-.type relocate_code, @function
-relocate_code:
- /*
- * SDRAM has been initialised, U-Boot code has been copied into
- * RAM, BSS has been cleared and relocation adjustments have been
- * made. It is now time to jump into the in-RAM copy of U-Boot
- *
- * %eax = Address of top of stack
- * %edx = Address of Global Data
- * %ecx = Base address of in-RAM copy of U-Boot
- */
-
- /* Setup stack in RAM */
- movl %eax, %esp
-
- /* Setup call address of in-RAM copy of board_init_r() */
- movl $board_init_r, %ebp
- addl (GD_RELOC_OFF * 4)(%edx), %ebp
-
- /* Setup parameters to board_init_r() */
- movl %edx, %eax
- movl %ecx, %edx
-
- /* Jump to in-RAM copy of board_init_r() */
- call *%ebp
-
-die: hlt
- jmp die
- hlt
-
-blank_idt_ptr:
- .word 0 /* limit */
- .long 0 /* base */