commit 3a25e944101aa5d042ac2d20f2f6ce02f300faad
author Graeme Russ <graeme.russ@gmail.com> Sat Feb 12 15:11:24 2011 +1100
committer Graeme Russ <graeme.russ@gmail.com> Sat Feb 12 15:11:24 2011 +1100
tree 2e62ef9ca7f8413db95d857d128c978b47ac3644
parent fde59123666dbd13fa230286253daee00bafba3f

x86: Parametize values used in linker script

arch/i386/lib/realmode.c

diff --git a/arch/i386/lib/realmode.c b/arch/i386/lib/realmode.c
index 60fe181..2dda95b 100644
--- a/arch/i386/lib/realmode.c
+++ b/arch/i386/lib/realmode.c
@@ -27,7 +27,6 @@
 #include <asm/realmode.h>
 
 
-#define REALMODE_BASE    ((char*)0x7c0)
 #define REALMODE_MAILBOX ((char*)0xe00)
 
 
@@ -41,13 +40,14 @@
 	ulong realmode_size = (ulong)&__realmode_size;
 
 	/* copy the realmode switch code */
-	if (realmode_size > (REALMODE_MAILBOX-REALMODE_BASE)) {
+	if (realmode_size > (REALMODE_MAILBOX - (char *)REALMODE_BASE)) {
 		printf("realmode switch too large (%ld bytes, max is %d)\n",
-		       realmode_size, (REALMODE_MAILBOX-REALMODE_BASE));
+		       realmode_size,
+		       (REALMODE_MAILBOX - (char *)REALMODE_BASE));
 		return -1;
 	}
 
-	memcpy(REALMODE_BASE, (void*)realmode_start, realmode_size);
+	memcpy((char *)REALMODE_BASE, (void *)realmode_start, realmode_size);
 	asm("wbinvd\n");
 
 	return 0;