From: Michael Brown <mcb30@etherboot.org>
Date: Fri, 1 Sep 2006 00:19:09 +0000 (+0000)
Subject: Added debug to catch initialisation failures
X-Git-Tag: v0.9.3~1059
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=66dcd22f6193aaaca7c734da9bf7ce206f2c1a63;p=thirdparty%2Fipxe.git

Added debug to catch initialisation failures
---

diff --git a/src/core/serial.c b/src/core/serial.c
index 94bb8d120..6383a48b2 100644
--- a/src/core/serial.c
+++ b/src/core/serial.c
@@ -165,23 +165,35 @@ static void serial_init ( void ) {
 	 */
 	uart_writeb(0x80 | lcs, UART_BASE + UART_LCR);
 	uart_writeb(0xaa, UART_BASE + UART_DLL);
-	if (uart_readb(UART_BASE + UART_DLL) != 0xaa) 
+	if (uart_readb(UART_BASE + UART_DLL) != 0xaa) {
+		DBG ( "Serial port %#x UART_DLL failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb(0x55, UART_BASE + UART_DLL);
-	if (uart_readb(UART_BASE + UART_DLL) != 0x55)
+	if (uart_readb(UART_BASE + UART_DLL) != 0x55) {
+		DBG ( "Serial port %#x UART_DLL failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb(divisor & 0xff, UART_BASE + UART_DLL);
-	if (uart_readb(UART_BASE + UART_DLL) != (divisor & 0xff))
+	if (uart_readb(UART_BASE + UART_DLL) != (divisor & 0xff)) {
+		DBG ( "Serial port %#x UART_DLL failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb(0xaa, UART_BASE + UART_DLM);
-	if (uart_readb(UART_BASE + UART_DLM) != 0xaa) 
+	if (uart_readb(UART_BASE + UART_DLM) != 0xaa) {
+		DBG ( "Serial port %#x UART_DLM failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb(0x55, UART_BASE + UART_DLM);
-	if (uart_readb(UART_BASE + UART_DLM) != 0x55)
+	if (uart_readb(UART_BASE + UART_DLM) != 0x55) {
+		DBG ( "Serial port %#x UART_DLM failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb((divisor >> 8) & 0xff, UART_BASE + UART_DLM);
-	if (uart_readb(UART_BASE + UART_DLM) != ((divisor >> 8) & 0xff))
+	if (uart_readb(UART_BASE + UART_DLM) != ((divisor >> 8) & 0xff)) {
+		DBG ( "Serial port %#x UART_DLM failed\n", UART_BASE );
 		goto out;
+	}
 	uart_writeb(lcs, UART_BASE + UART_LCR);
 	
 	/* disable interrupts */