ARM: ep93xx: Fix wait for UART FIFO to be empty

[karo-tx-linux.git] / arch / arm / mach-ep93xx / include / mach / uncompress.h

diff --git a/arch/arm/mach-ep93xx/include/mach/uncompress.h b/arch/arm/mach-ep93xx/include/mach/uncompress.h
index d2afb4dd82aba7902049e24e72215e432eed6bd2..b5cc77d2380bd59c24c2da80a9995d45c2277f85 100644 (file)
--- a/arch/arm/mach-ep93xx/include/mach/uncompress.h
+++ b/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);
 }