[PATCH 2/5] powerpc: introduce arch_enable_default_of_probe()

[Kevin Hao <haokexin@gmail.com>]

We can use this function to enable the default of probe for one
board.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
 arch/powerpc/include/asm/setup.h  | 1 +
 arch/powerpc/kernel/of_platform.c | 9 ++++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index 654d64c9f3ac..213719882fe4 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -24,6 +24,7 @@ extern void reloc_got2(unsigned long);
 void check_for_initrd(void);
 void initmem_init(void);
 void setup_panic(void);
+extern void arch_enable_default_of_probe(void);
 #define ARCH_PANIC_TIMEOUT 180
 
 #ifdef CONFIG_PPC_PSERIES
diff --git a/arch/powerpc/kernel/of_platform.c b/arch/powerpc/kernel/of_platform.c
index ace7fe132b6f..77402a14e928 100644
--- a/arch/powerpc/kernel/of_platform.c
+++ b/arch/powerpc/kernel/of_platform.c
@@ -123,7 +123,14 @@ device_initcall(of_pci_phb_init);
 
 #endif /* CONFIG_PPC_OF_PLATFORM_PCI */
 
+static bool default_of_probe_enabled;
+
 bool __init arch_want_default_of_probe(void)
 {
-	return false;
+	return default_of_probe_enabled;
+}
+
+void __init arch_enable_default_of_probe(void)
+{
+	default_of_probe_enabled = true;
 }
-- 
2.5.5