Index: etherboot-5.4.3/src/core/serial.c
===================================================================
--- etherboot-5.4.3.orig/src/core/serial.c	2007-02-24 14:44:59.000000000 +0000
+++ etherboot-5.4.3/src/core/serial.c	2007-09-12 18:21:29.000000000 +0100
@@ -177,12 +177,14 @@
 	uart_writeb(divisor & 0xff, UART_BASE + UART_DLL);
 	if (uart_readb(UART_BASE + UART_DLL) != (divisor & 0xff))
 		goto out;
+#if 0
 	uart_writeb(0xaa, UART_BASE + UART_DLM);
 	if (uart_readb(UART_BASE + UART_DLM) != 0xaa) 
 		goto out;
 	uart_writeb(0x55, UART_BASE + UART_DLM);
 	if (uart_readb(UART_BASE + UART_DLM) != 0x55)
 		goto out;
+#endif
 	uart_writeb((divisor >> 8) & 0xff, UART_BASE + UART_DLM);
 	if (uart_readb(UART_BASE + UART_DLM) != ((divisor >> 8) & 0xff))
 		goto out;
