SB800: Port to 64bit

Change-Id: I944fb254e9470c80b13c9eef9d6b1177a56e615f
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Signed-off-by: Scott Duplichan <scott@notabs.org>
Reviewed-on: http://review.coreboot.org/10582
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
diff --git a/src/southbridge/amd/cimx/sb800/spi.c b/src/southbridge/amd/cimx/sb800/spi.c
index 1ce7fcd..694a3b7 100644
--- a/src/southbridge/amd/cimx/sb800/spi.c
+++ b/src/southbridge/amd/cimx/sb800/spi.c
@@ -35,7 +35,7 @@
 
 #define AMD_SB_SPI_TX_LEN	8
 
-static u32 spibar;
+static uintptr_t spibar;
 
 static void reset_internal_fifo_pointer(void)
 {