Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7

* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
  x86: Document x86_init.paging.pagetable_init()
  x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
  x86: Move paging_init() call to x86_init.paging.pagetable_init()
  x86: Rename pagetable_setup_start() to pagetable_init()
  x86: Remove base argument from x86_init.paging.pagetable_setup_start
  Linux 3.6-rc5
  HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
  Remove user-triggerable BUG from mpol_to_str
  xen/pciback: Fix proper FLR steps.
  uml: fix compile error in deliver_alarm()
  dj: memory scribble in logi_dj
  Fix order of arguments to compat_put_time[spec|val]
  xen: Use correct masking in xen_swiotlb_alloc_coherent.
  xen: fix logical error in tlb flushing
  xen/p2m: Fix one-off error in checking the P2M tree directory.
  powerpc: Don't use __put_user() in patch_instruction
  powerpc: Make sure IPI handlers see data written by IPI senders
  powerpc: Restore correct DSCR in context switch
  powerpc: Fix DSCR inheritance in copy_thread()
  powerpc: Keep thread.dscr and thread.dscr_inherit in sync
  ...

1 files changed, 14 insertions, 0 deletions

diff --git a/arch/arm/mach-vexpress/include/mach/uncompress.h b/arch/arm/mach-vexpress/include/mach/uncompress.h
index 7dab5596b86..1e472eb0bbd 100644
--- a/arch/arm/mach-vexpress/include/mach/uncompress.h
+++ b/arch/arm/mach-vexpress/include/mach/uncompress.h
@@ -27,6 +27,7 @@
 
 static unsigned long get_uart_base(void)
 {
+#if defined(CONFIG_DEBUG_VEXPRESS_UART0_DETECT)
 	unsigned long mpcore_periph;
 
 	/*
@@ -42,6 +43,13 @@ static unsigned long get_uart_base(void)
 		return UART_BASE;
 	else
 		return UART_BASE_RS1;
+#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_CA9)
+	return UART_BASE;
+#elif defined(CONFIG_DEBUG_VEXPRESS_UART0_RS1)
+	return UART_BASE_RS1;
+#else
+	return 0;
+#endif
 }
 
 /*
@@ -51,6 +59,9 @@ static inline void putc(int c)
 {
 	unsigned long base = get_uart_base();
 
+	if (!base)
+		return;
+
 	while (AMBA_UART_FR(base) & (1 << 5))
 		barrier();
 
@@ -61,6 +72,9 @@ static inline void flush(void)
 {
 	unsigned long base = get_uart_base();
 
+	if (!base)
+		return;
+
 	while (AMBA_UART_FR(base) & (1 << 3))
 		barrier();
 }