Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (25 commits)
  [POWERPC] Add support for the mpc832x mds board
  [POWERPC] Add initial support for the e300c2 core
  [POWERPC] Add MPC8360EMDS default dts file
  [POWERPC] Add MPC8360EMDS board support
  [POWERPC] Add QUICC Engine (QE) infrastructure
  [POWERPC] Add QE device tree node definition
  [POWERPC] Don't try to just continue if xmon has no input device
  [POWERPC] Fix a printk in pseries_mpic_init_IRQ
  [POWERPC] Get default baud rate in udbg_scc
  [POWERPC] Fix zImage.coff on oldworld PowerMac
  [POWERPC] Fix xmon=off and cleanup xmon initialisation
  [POWERPC] Cleanup include/asm-powerpc/xmon.h
  [POWERPC] Update swim3 printk after blkdev.h change
  [POWERPC] Cell interrupt rework
  POWERPC: mpc82xx merge: board-specific/platform stuff(resend)
  POWERPC: 8272ads merge to powerpc: common stuff
  POWERPC: Added devicetree for mpc8272ads board
  [POWERPC] iSeries has no legacy I/O
  [POWERPC] implement BEGIN/END_FW_FTR_SECTION
  [POWERPC] iSeries does not need pcibios_fixup_resources
  ...

1 files changed, 34 insertions, 1 deletions

diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 8adad1444a51..708236f34746 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -2,6 +2,8 @@
  * Routines providing a simple monitor for use on the PowerMac.
  *
  * Copyright (C) 1996-2005 Paul Mackerras.
+ * Copyright (C) 2001 PPC64 Team, IBM Corp
+ * Copyrignt (C) 2006 Michael Ellerman, IBM Corp
  *
  *      This program is free software; you can redistribute it and/or
  *      modify it under the terms of the GNU General Public License
@@ -503,7 +505,7 @@ static int xmon_core(struct pt_regs *regs, int fromipi)
 
 	mtmsr(msr);		/* restore interrupt enable */
 
-	return cmd != 'X';
+	return cmd != 'X' && cmd != EOF;
 }
 
 int xmon(struct pt_regs *excp)
@@ -2597,3 +2599,34 @@ static int __init setup_xmon_sysrq(void)
 }
 __initcall(setup_xmon_sysrq);
 #endif /* CONFIG_MAGIC_SYSRQ */
+
+int __initdata xmon_early, xmon_off;
+
+static int __init early_parse_xmon(char *p)
+{
+	if (!p || strncmp(p, "early", 5) == 0) {
+		/* just "xmon" is equivalent to "xmon=early" */
+		xmon_init(1);
+		xmon_early = 1;
+	} else if (strncmp(p, "on", 2) == 0)
+		xmon_init(1);
+	else if (strncmp(p, "off", 3) == 0)
+		xmon_off = 1;
+	else if (strncmp(p, "nobt", 4) == 0)
+		xmon_no_auto_backtrace = 1;
+	else
+		return 1;
+
+	return 0;
+}
+early_param("xmon", early_parse_xmon);
+
+void __init xmon_setup(void)
+{
+#ifdef CONFIG_XMON_DEFAULT
+	if (!xmon_off)
+		xmon_init(1);
+#endif
+	if (xmon_early)
+		debugger(NULL);
+}