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-rw-r--r--arch/x86/lib/board.c3
-rw-r--r--arch/x86/lib/init_helpers.c23
-rw-r--r--arch/x86/lib/init_wrappers.c1
-rw-r--r--arch/x86/lib/relocate.c17
4 files changed, 42 insertions, 2 deletions
diff --git a/arch/x86/lib/board.c b/arch/x86/lib/board.c
index 22bc26dde9..2441a66ae2 100644
--- a/arch/x86/lib/board.c
+++ b/arch/x86/lib/board.c
@@ -32,6 +32,7 @@
*/
#include <common.h>
+#include <fdtdec.h>
#include <watchdog.h>
#include <stdio_dev.h>
#include <asm/u-boot-x86.h>
@@ -131,6 +132,7 @@ init_fnc_t *init_sequence_f[] = {
init_fnc_t *init_sequence_f_r[] = {
init_cache_f_r,
copy_uboot_to_ram,
+ copy_fdt_to_ram,
clear_bss,
do_elf_reloc_fixups,
@@ -217,6 +219,7 @@ static void do_init_loop(init_fnc_t **init_fnc_ptr)
void board_init_f(ulong boot_flags)
{
+ gd->fdt_blob = gd->arch.new_fdt = NULL;
gd->flags = boot_flags;
do_init_loop(init_sequence_f);
diff --git a/arch/x86/lib/init_helpers.c b/arch/x86/lib/init_helpers.c
index ff2d21f4c5..414fdcc4c9 100644
--- a/arch/x86/lib/init_helpers.c
+++ b/arch/x86/lib/init_helpers.c
@@ -22,6 +22,7 @@
*/
#include <common.h>
#include <command.h>
+#include <fdtdec.h>
#include <stdio_dev.h>
#include <version.h>
#include <malloc.h>
@@ -85,17 +86,35 @@ int calculate_relocation_address(void)
(uintptr_t)&__text_start;
ulong total_size;
ulong dest_addr;
+ ulong fdt_size = 0;
+#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
+ if (gd->fdt_blob)
+ fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
+#endif
total_size = ALIGN(uboot_size, 1 << 12) + CONFIG_SYS_MALLOC_LEN +
- CONFIG_SYS_STACK_SIZE;
+ CONFIG_SYS_STACK_SIZE + fdt_size;
+ dest_addr = board_get_usable_ram_top(total_size);
/*
* NOTE: All destination address are rounded down to 16-byte
* boundary to satisfy various worst-case alignment
* requirements
*/
- dest_addr = board_get_usable_ram_top(total_size);
+ dest_addr &= ~15;
+#if defined(CONFIG_OF_SEPARATE) && defined(CONFIG_OF_CONTROL)
+ /*
+ * If the device tree is sitting immediate above our image then we
+ * must relocate it. If it is embedded in the data section, then it
+ * will be relocated with other data.
+ */
+ if (gd->fdt_blob) {
+ dest_addr -= fdt_size;
+ gd->arch.new_fdt = (void *)dest_addr;
+ dest_addr &= ~15;
+ }
+#endif
/* U-Boot is below the FDT */
dest_addr -= uboot_size;
dest_addr &= ~((1 << 12) - 1);
diff --git a/arch/x86/lib/init_wrappers.c b/arch/x86/lib/init_wrappers.c
index cca018fa9b..19af875c0e 100644
--- a/arch/x86/lib/init_wrappers.c
+++ b/arch/x86/lib/init_wrappers.c
@@ -22,6 +22,7 @@
*/
#include <common.h>
#include <environment.h>
+#include <fdtdec.h>
#include <serial.h>
#include <kgdb.h>
#include <scsi.h>
diff --git a/arch/x86/lib/relocate.c b/arch/x86/lib/relocate.c
index 23edca9526..3a38e52ac9 100644
--- a/arch/x86/lib/relocate.c
+++ b/arch/x86/lib/relocate.c
@@ -32,6 +32,7 @@
*/
#include <common.h>
+#include <libfdt.h>
#include <malloc.h>
#include <asm/u-boot-x86.h>
#include <asm/relocate.h>
@@ -46,6 +47,22 @@ int copy_uboot_to_ram(void)
return 0;
}
+int copy_fdt_to_ram(void)
+{
+ if (gd->arch.new_fdt) {
+ ulong fdt_size;
+
+ fdt_size = ALIGN(fdt_totalsize(gd->fdt_blob) + 0x1000, 32);
+
+ memcpy(gd->arch.new_fdt, gd->fdt_blob, fdt_size);
+ debug("Relocated fdt from %p to %p, size %lx\n",
+ gd->fdt_blob, gd->arch.new_fdt, fdt_size);
+ gd->fdt_blob = gd->arch.new_fdt;
+ }
+
+ return 0;
+}
+
int clear_bss(void)
{
ulong dst_addr = (ulong)&__bss_start + gd->reloc_off;