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-rw-r--r--arch/x86/lib/Makefile1
-rw-r--r--arch/x86/lib/board.c69
-rw-r--r--arch/x86/lib/relocate.c115
3 files changed, 118 insertions, 67 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 7820895..57b6896 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -40,6 +40,7 @@ COBJS-$(CONFIG_SYS_GENERIC_TIMER) += pcat_timer.o
COBJS-$(CONFIG_PCI) += pci.o
COBJS-$(CONFIG_PCI) += pci_type1.o
COBJS-$(CONFIG_SYS_X86_REALMODE) += realmode.o
+COBJS-y += relocate.o
COBJS-y += string.o
COBJS-$(CONFIG_SYS_X86_ISR_TIMER) += timer.o
COBJS-$(CONFIG_VIDEO) += video_bios.o
diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c
index 416aa9e..bebb347 100644
--- a/arch/x86/lib/board.c
+++ b/arch/x86/lib/board.c
@@ -41,7 +41,6 @@
#include <ide.h>
#include <serial.h>
#include <asm/u-boot-x86.h>
-#include <elf.h>
#include <asm/processor.h>
#ifdef CONFIG_BITBANGMII
@@ -117,9 +116,6 @@ static void display_flash_config(ulong size)
typedef int (init_fnc_t) (void);
static int calculate_relocation_address(void);
-static int copy_uboot_to_ram(void);
-static int clear_bss(void);
-static int do_elf_reloc_fixups(void);
static int copy_gd_to_ram(void);
init_fnc_t *init_sequence_f[] = {
@@ -183,59 +179,6 @@ static int calculate_relocation_address(void)
return 0;
}
-static int copy_uboot_to_ram(void)
-{
- size_t len = (size_t)&__data_end - (size_t)&__text_start;
-
- memcpy((void *)gd->relocaddr, (void *)&__text_start, len);
-
- return 0;
-}
-
-static int clear_bss(void)
-{
- ulong dst_addr = (ulong)&__bss_start + gd->reloc_off;
- size_t len = (size_t)&__bss_end - (size_t)&__bss_start;
-
- memset((void *)dst_addr, 0x00, len);
-
- return 0;
-}
-
-static int do_elf_reloc_fixups(void)
-{
- Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start);
- Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end);
-
- Elf32_Addr *offset_ptr_rom;
- Elf32_Addr *offset_ptr_ram;
-
- /* The size of the region of u-boot that runs out of RAM. */
- uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;
-
- do {
- /* Get the location from the relocation entry */
- offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;
-
- /* Check that the location of the relocation is in .text */
- if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE) {
-
- /* Switch to the in-RAM version */
- offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
- gd->reloc_off);
-
- /* Check that the target points into .text */
- if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE &&
- *offset_ptr_ram <
- (CONFIG_SYS_TEXT_BASE + size)) {
- *offset_ptr_ram += gd->reloc_off;
- }
- }
- } while (re_src++ < re_end);
-
- return 0;
-}
-
/* Load U-Boot into RAM, initialize BSS, perform relocation adjustments */
void board_init_f(ulong boot_flags)
{
@@ -270,17 +213,9 @@ void board_init_f_r(void)
if (init_cache() != 0)
hang();
- copy_uboot_to_ram();
- clear_bss();
- do_elf_reloc_fixups();
-
- /*
- * Transfer execution from Flash to RAM by calculating the address
- * of the in-RAM copy of board_init_r() and calling it
- */
- (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
+ relocate_code(0, gd, 0);
- /* NOTREACHED - board_init_r() does not return */
+ /* NOTREACHED - relocate_code() does not return */
while (1)
;
}
diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
new file mode 100644
index 0000000..badb5f8
--- /dev/null
+++ b/arch/x86/lib/relocate.c
@@ -0,0 +1,115 @@
+/*
+ * (C) Copyright 2008-2011
+ * Graeme Russ, <graeme.russ@gmail.com>
+ *
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
+ *
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * 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 <malloc.h>
+#include <asm/u-boot-x86.h>
+#include <elf.h>
+
+static int copy_uboot_to_ram(void);
+static int clear_bss(void);
+static int do_elf_reloc_fixups(void);
+
+static int copy_uboot_to_ram(void)
+{
+ size_t len = (size_t)&__data_end - (size_t)&__text_start;
+
+ memcpy((void *)gd->relocaddr, (void *)&__text_start, len);
+
+ return 0;
+}
+
+static int clear_bss(void)
+{
+ ulong dst_addr = (ulong)&__bss_start + gd->reloc_off;
+ size_t len = (size_t)&__bss_end - (size_t)&__bss_start;
+
+ memset((void *)dst_addr, 0x00, len);
+
+ return 0;
+}
+
+static int do_elf_reloc_fixups(void)
+{
+ Elf32_Rel *re_src = (Elf32_Rel *)(&__rel_dyn_start);
+ Elf32_Rel *re_end = (Elf32_Rel *)(&__rel_dyn_end);
+
+ Elf32_Addr *offset_ptr_rom;
+ Elf32_Addr *offset_ptr_ram;
+
+ /* The size of the region of u-boot that runs out of RAM. */
+ uintptr_t size = (uintptr_t)&__bss_end - (uintptr_t)&__text_start;
+
+ do {
+ /* Get the location from the relocation entry */
+ offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;
+
+ /* Check that the location of the relocation is in .text */
+ if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE) {
+
+ /* Switch to the in-RAM version */
+ offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
+ gd->reloc_off);
+
+ /* Check that the target points into .text */
+ if (*offset_ptr_ram >= CONFIG_SYS_TEXT_BASE &&
+ *offset_ptr_ram <
+ (CONFIG_SYS_TEXT_BASE + size)) {
+ *offset_ptr_ram += gd->reloc_off;
+ }
+ }
+ } while (re_src++ < re_end);
+
+ return 0;
+}
+
+void relocate_code(ulong dummy_1, gd_t *id, ulong dummy_2)
+{
+ /*
+ * Copy U-Boot into RAM, clear the BSS and perform relocation
+ * adjustments
+ */
+ copy_uboot_to_ram();
+ clear_bss();
+ do_elf_reloc_fixups();
+
+ /*
+ * Transfer execution from Flash to RAM by calculating the address
+ * of the in-RAM copy of board_init_r() and calling it
+ */
+ (board_init_r + gd->reloc_off)(gd, gd->relocaddr);
+
+ /* NOTREACHED - board_init_r() does not return */
+ while (1)
+ ;
+}
generated by cgit v1.1 at 2024-12-29 20:30:35 +0000