ARM: mx5: Enable L2 cache

[u-boot] / arch / x86 / cpu / start.S

diff --git a/arch/x86/cpu/start.S b/arch/x86/cpu/start.S
index ec12e8044fd92a6f4c8fcf24057bb19f3645324f..329bb3ab35bdce43bc83692c16b60fac04529a8a 100644 (file)
--- a/arch/x86/cpu/start.S
+++ b/arch/x86/cpu/start.S
@@ -7,23 +7,7 @@
  * (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
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <config.h>
@@ -55,8 +39,16 @@ _x86boot_start:
        movl    %eax, %cr0
        wbinvd
 
+       /* Tell 32-bit code it is being entered from an in-RAM copy */
+       movw    $GD_FLG_WARM_BOOT, %bx
+       jmp     1f
 _start:
-       /* This is the 32-bit cold-reset entry point */
+       /*
+        * This is the 32-bit cold-reset entry point. Initialize %bx to 0
+        * in case we're preceeded by some sort of boot stub.
+        */
+       movw    $GD_FLG_COLD_BOOT, %bx
+1:
 
        /* Load the segement registes to match the gdt loaded in start16.S */
        movl    $(X86_GDT_ENTRY_32BIT_DS * X86_GDT_ENTRY_SIZE), %eax
@@ -105,9 +97,6 @@ car_init_ret:
        /* Set second parameter to setup_gdt */
        movl    %esp, %edx
 
-       /* gd->gd_addr = gd (Required to allow gd->xyz to work) */
-       movl    %eax, (%eax)
-
        /* Setup global descriptor table so gd->xyz works */
        call    setup_gdt
 
@@ -163,9 +152,6 @@ board_init_f_r_trampoline:
        /* Set second parameter to setup_gdt */
        movl    %esp, %edx
 
-       /* gd->gd_addr = gd (Required to allow gd->xyz to work) */
-       movl    %eax, (%eax)
-
        /* Setup global descriptor table so gd->xyz works */
        call    setup_gdt