stubs: Zero kernel and dtb address in stubs

Allow the firmware to choose sensible kernel and DTB addresses for 32- and 64-bit system by zeroing the values in the stubs. These will be overwritten by the real address, or zero if the relevant item is not loaded. Signed-off-by: Phil Elwell <[email protected]>
raspberrypi · Apr 18, 2016 · 2b2d204 · 2b2d204
1 parent 723dd8c
commit 2b2d204
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Showing 3 changed files with 6 additions and 6 deletions.
diff --git a/armstubs/armstub.S b/armstubs/armstub.S
@@ -39,5 +39,5 @@ machid:	.word 3138
 .org 0xf0
 .word 0x5afe570b	@ magic value to indicate firmware should overwrite atags and kernel
 .word 0			@ version
-atags:	.word 0x100	@ device tree address
-kernel:	.word 0x8000	@ kernel start address
+atags:	.word 0x0	@ device tree address
+kernel:	.word 0x0	@ kernel start address
diff --git a/armstubs/armstub7.S b/armstubs/armstub7.S
@@ -125,5 +125,5 @@ jmp_loader:
 .org 0xf0
 .word 0x5afe570b	@ magic value to indicate firmware should overwrite atags and kernel
 .word 0			@ version
-atags:	.word 0x100	@ device tree address
-kernel:	.word 0x8000	@ kernel start address
+atags:	.word 0x0	@ device tree address
+kernel:	.word 0x0	@ kernel start address
diff --git a/armstubs/armstub8.S b/armstubs/armstub8.S
@@ -155,11 +155,11 @@ stub_version:
 .org 0xf8
 .globl dtb_ptr32
 dtb_ptr32:
-	.word 0x100
+	.word 0x0
 .org 0xfc
 .globl kernel_entry32
 kernel_entry32:
-	.word 0x8000
+	.word 0x0
 
 .org 0x100
 .globl dtb_space