Merge tag 'ep93xx-fixes-for-3.9-rc5' of git://github.com/RyanMallon/l…

…inux-ep93xx into fixes

From Ryan Mallon <rmallon@gmail.com>:

It is a regression fix for some ep93xx boards which are failing to boot
on current mainline. The patch has been tested in next over the last
few days.

* tag 'ep93xx-fixes-for-3.9-rc5' of git://github.com/RyanMallon/linux-ep93xx:
  ARM: ep93xx: Fix wait for UART FIFO to be empty

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-ep93xx/include/mach/uncompress.h

@@ -47,9 +47,13 @@ static void __raw_writel(unsigned int value, unsigned int ptr)
 
 static inline void putc(int c)
 {
-	/* Transmit fifo not full?  */
-	while (__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF)
-		;
+	int i;
+
+	for (i = 0; i < 10000; i++) {
+		/* Transmit fifo not full? */
+		if (!(__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF))
+			break;
+	}
 
 	__raw_writeb(c, PHYS_UART_DATA);
 }