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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2007-09-13 20:23:48 +0200
committerRalf Baechle <ralf@linux-mips.org>2007-10-18 18:11:46 +0100
commit15ad838d281b3681d96e37cba8a628177da8f4ff (patch)
tree655606a3de4a688ac5b409e7986ceb20b8c258c0
parentd85714d81cc0408daddb68c10f7fd69eafe7c213 (diff)
[MIPS] Always do the ARC64_TWIDDLE_PC thing.
Always jump to the place where the kernel is linked to. This helps where the bootloaders/proms ignores the start address inside the ELF header. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/kernel/head.S16
-rw-r--r--include/asm-mips/mach-ip27/kernel-entry-init.h9
2 files changed, 13 insertions, 12 deletions
diff --git a/arch/mips/kernel/head.S b/arch/mips/kernel/head.S
index bf164a562acb..236768731063 100644
--- a/arch/mips/kernel/head.S
+++ b/arch/mips/kernel/head.S
@@ -27,16 +27,6 @@
#include <kernel-entry-init.h>
- .macro ARC64_TWIDDLE_PC
-#if defined(CONFIG_ARC64) || defined(CONFIG_MAPPED_KERNEL)
- /* We get launched at a XKPHYS address but the kernel is linked to
- run at a KSEG0 address, so jump there. */
- PTR_LA t0, \@f
- jr t0
-\@:
-#endif
- .endm
-
/*
* inputs are the text nasid in t1, data nasid in t2.
*/
@@ -157,7 +147,11 @@ NESTED(kernel_entry, 16, sp) # kernel entry point
setup_c0_status_pri
- ARC64_TWIDDLE_PC
+ /* We might not get launched at the address the kernel is linked to,
+ so we jump there. */
+ PTR_LA t0, 0f
+ jr t0
+0:
#ifdef CONFIG_MIPS_MT_SMTC
/*
diff --git a/include/asm-mips/mach-ip27/kernel-entry-init.h b/include/asm-mips/mach-ip27/kernel-entry-init.h
index c1a10314b317..624d66c7f290 100644
--- a/include/asm-mips/mach-ip27/kernel-entry-init.h
+++ b/include/asm-mips/mach-ip27/kernel-entry-init.h
@@ -46,7 +46,14 @@
lh t1, KV_RO_NASID_OFFSET(t0)
lh t2, KV_RW_NASID_OFFSET(t0)
MAPPED_KERNEL_SETUP_TLB
- ARC64_TWIDDLE_PC
+
+ /*
+ * We might not get launched at the address the kernel is linked to,
+ * so we jump there.
+ */
+ PTR_LA t0, 0f
+ jr t0
+0:
.endm
#endif /* __ASM_MACH_IP27_KERNEL_ENTRY_H */