This causes the DSS port to be used as the console so you see all
the boot messages and can still run a shell on ttyS3.

If you don't want to re-run "make config" you can manually add
"#define CONFIG_DSS_CONSOLE 1" to the end of include/linux/autoconf.h.

I have not tried compiling a kernel with xmon using this hack.

 - todd <Todd.Miller@courtesan.com>

--- arch/ppc/tcd/403serial.c.DIST	Fri May 31 16:28:13 2002
+++ arch/ppc/tcd/403serial.c	Sat Nov  9 17:33:13 2002
@@ -16,21 +16,23 @@
 {
         __asm__( "eieio " : : );
 }
+#ifdef CONFIG_DSS_CONSOLE
+static volatile unsigned char *S403_BASE = (volatile unsigned char *) IOBASE_DSSUART;
+#else
 static volatile unsigned char *S403_BASE = (volatile unsigned char *) IOBASE_UART;
+#endif
 
 int	s403_ready = 0;
 
 void
 s403_virtualinit(void) {
 	s403_ready = 0;
-	S403_BASE = (volatile unsigned char *)IOBASE_UART;
 	s403_init();
 }
 
 void
 s403_realinit(void) {
 	s403_ready = 0;
-	S403_BASE = (volatile unsigned char *) IOBASE_UART;
 	s403_init();
 }
 
--- drivers/char/serial.c.DIST	Fri May 31 16:28:14 2002
+++ drivers/char/serial.c	Sat Nov  9 17:32:37 2002
@@ -351,7 +351,11 @@
     { 0, BASE_BAUD, IOBASE_SERIAL, RS_FAKE_S403, STD_COM_FLAGS },
     { 0, MODEM_BAUD, IOBASE_MODEM, RS_FAKE_MODEM, ASYNC_BOOT_AUTOCONF },
     { 0, BASE_BAUD, IOBASE_UART2, RS_FAKE_UART2, ASYNC_BOOT_AUTOCONF },
+#ifdef CONFIG_DSS_CONSOLE
+    { 0, BASE_BAUD, IOBASE_DSSUART, RS_FAKE_DSSUART, STD_COM_FLAGS },
+#else
     { 0, BASE_BAUD, IOBASE_DSSUART, RS_FAKE_DSSUART, ASYNC_BOOT_AUTOCONF },
+#endif
 #else /* CONFIG_TCD */
     { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS },	/* ttyS0 */
     { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS },	/* ttyS1 */
@@ -3739,6 +3743,26 @@
 	restore_flags(flags);
 	return;
     }
+#if CONFIG_DSS_CONSOLE
+    if (state->port == IOBASE_DSSUART) {
+	state->type = PORT_16550A;
+#ifdef SERIAL_DEBUG_OPEN
+	printk("autoconfig, type=PORT_16550A\n");
+#endif
+	/*
+	 * If the AUTO_IRQ flag is set, try to do the automatic IRQ
+	 * detection.
+	 */
+	state->irq = RS_FAKE_DSSUART;
+			
+	state->xmit_fifo_size =	uart_config[state->type].dfl_xmit_fifo_size;
+
+	request_region(info->port,8,"serial(auto)");
+
+	restore_flags(flags);
+	return;
+    }
+#endif
     /* 
      * If this is a box prior to P1.7, the DSSART address is aliased with the
      * the UART at IOBASE_UART (the console).
--- arch/ppc/config.in-	Sat Nov  9 13:29:25 2002
+++ arch/ppc/config.in	Sat Nov  9 18:00:47 2002
@@ -14,6 +14,7 @@
 bool 'Support for the TiVo Customer Device' CONFIG_TCD
 bool 'TiVo Customer Device development kernel' CONFIG_TCD_DEVEL
 bool 'IBM Eval board for the 403GCX' CONFIG_TCD_EVAL
+bool 'Use TiVo DSS port as console' CONFIG_DSS_CONSOLE
 endmenu
 
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