arm: vt8500: Fix build warning in uncompress.h
Tony Prisk [Sun, 7 Oct 2012 21:23:32 +0000 (10:23 +1300)]
This removes a build-time warning in uncompress.h due to incorrectly
cast values being passed to readb/writeb.

Removed arm/io.h and readb/writeb. Read/write directly to the serial
port with a volatile pointer.

Signed-off-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Olof Johansson <olof@lixom.net>

arch/arm/mach-vt8500/include/mach/uncompress.h

index bb9e2d2..e6e81fd 100644 (file)
  *
  */
 
-#define UART0_PHYS 0xd8200000
-#include <asm/io.h>
+#define UART0_PHYS     0xd8200000
+#define UART0_ADDR(x)  *(volatile unsigned char *)(UART0_PHYS + x)
 
 static void putc(const char c)
 {
-       while (readb(UART0_PHYS + 0x1c) & 0x2)
+       while (UART0_ADDR(0x1c) & 0x2)
                /* Tx busy, wait and poll */;
 
-       writeb(c, UART0_PHYS);
+       UART0_ADDR(0) = c;
 }
 
 static void flush(void)