[PATCH] powerpc/44x: Fix typos '47x' and 'CONFIG_47x'

[Paul Bolle]

Commit 674bfa4855 ("powerpc/44x: Kexec support for PPC440X chipsets")
used the Kconfig symbol '47x', and the macro 'CONFIG_47x'. Neither
exist. These should have been 'PPC_47x' and 'CONFIG_PPC_47x'. Fix these
typos.

Also fix a related preprocessor check at the top of kexec.h.

Signed-off-by: Paul Bolle <pebolle at tiscali.nl>
---
The commit explanation sounds very confident, but this is all just
educated guesswork. Entirely untested too (I haven't got the hardware
nor the toolchain). So this needs careful review. 

 arch/powerpc/Kconfig             |    2 +-
 arch/powerpc/include/asm/kexec.h |    3 ++-
 arch/powerpc/kernel/misc_32.S    |    2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index b177caa..951e18f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -345,7 +345,7 @@ config ARCH_ENABLE_MEMORY_HOTREMOVE
 
 config KEXEC
 	bool "kexec system call (EXPERIMENTAL)"
-	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !47x)) && EXPERIMENTAL
+	depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL
 	help
 	  kexec is a system call that implements the ability to shutdown your
 	  current kernel, and to start another kernel.  It is like a reboot
diff --git a/arch/powerpc/include/asm/kexec.h b/arch/powerpc/include/asm/kexec.h
index f921eb1..fadf513 100644
--- a/arch/powerpc/include/asm/kexec.h
+++ b/arch/powerpc/include/asm/kexec.h
@@ -2,7 +2,8 @@
 #define _ASM_POWERPC_KEXEC_H
 #ifdef __KERNEL__
 
-#if defined(CONFIG_FSL_BOOKE) || defined(CONFIG_44x)
+#if defined(CONFIG_FSL_BOOKE) || \
+	(defined(CONFIG_44x) && !defined(CONFIG_PPC_47x))
 
 /*
  * On FSL-BookE we setup a 1:1 mapping which covers the first 2GiB of memory
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index f7d760a..7cd07b4 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -738,7 +738,7 @@ relocate_new_kernel:
 	mr      r5, r31
 
 	li	r0, 0
-#elif defined(CONFIG_44x)  && !defined(CONFIG_47x)
+#elif defined(CONFIG_44x)  && !defined(CONFIG_PPC_47x)
 
 /*
  * Code for setting up 1:1 mapping for PPC440x for KEXEC
-- 
1.7.4.4