xtensa: avoid duplicate of IO range definitions

Define IO addresses in a single place, to make it easier to change for
non-standard memory maps.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

arch/xtensa/include/asm/initialize_mmu.h

@@ -123,13 +123,13 @@
 	wdtlb	a4, a5
 	witlb	a4, a5
 
-	movi	a5, 0xe0000006
-	movi	a4, 0xf0000000 + CA_WRITEBACK
+	movi	a5, XCHAL_KIO_CACHED_VADDR + 6
+	movi	a4, XCHAL_KIO_PADDR + CA_WRITEBACK
 	wdtlb	a4, a5
 	witlb	a4, a5
 
-	movi	a5, 0xf0000006
-	movi	a4, 0xf0000000 + CA_BYPASS
+	movi	a5, XCHAL_KIO_BYPASS_VADDR + 6
+	movi	a4, XCHAL_KIO_PADDR + CA_BYPASS
 	wdtlb	a4, a5
 	witlb	a4, a5
 

arch/xtensa/include/asm/io.h

@@ -14,16 +14,12 @@
 #ifdef __KERNEL__
 #include <asm/byteorder.h>
 #include <asm/page.h>
+#include <asm/vectors.h>
 #include <linux/bug.h>
 #include <linux/kernel.h>
 
 #include <linux/types.h>
 
-#define XCHAL_KIO_CACHED_VADDR	0xe0000000
-#define XCHAL_KIO_BYPASS_VADDR	0xf0000000
-#define XCHAL_KIO_PADDR		0xf0000000
-#define XCHAL_KIO_SIZE		0x10000000
-
 #define IOADDR(x)		(XCHAL_KIO_BYPASS_VADDR + (x))
 #define IO_SPACE_LIMIT ~0
 

arch/xtensa/include/asm/vectors.h

@@ -20,6 +20,11 @@
 
 #include <variant/core.h>
 
+#define XCHAL_KIO_CACHED_VADDR		0xe0000000
+#define XCHAL_KIO_BYPASS_VADDR		0xf0000000
+#define XCHAL_KIO_PADDR			0xf0000000
+#define XCHAL_KIO_SIZE			0x10000000
+
 #if defined(CONFIG_MMU)
 
 /* Will Become VECBASE */