of/flattree: Add Kconfig for EARLY_FLATTREE

The device tree code is now in two pieces: some which can be used generically
on any platform which selects CONFIG_OF_FLATTREE, and some early which is used
at boot time on only a few architectures.  This patch segregates the early
code so that only those architectures which care about it need compile it.
This also means that some of the requirements in the early code (such as
a cmd_line variable) that most architectures (e.g. X86) don't provide
can be ignored.

Signed-off-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
[grant.likely@secretlab.ca: remove extra blank line addition]
[grant.likely@secretlab.ca: fixed incorrect #ifdef CONFIG_EARLY_FLATTREE check]
[grant.likely@secretlab.ca: Made OF_EARLY_FLATTREE select instead of depend
                            on OF_FLATTREE]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>

3 files changed, 3 insertions, 3 deletions

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index 387d5ffdfd3..5f5018a71a3 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -14,7 +14,7 @@ config MICROBLAZE
         select HAVE_DMA_API_DEBUG
         select TRACING_SUPPORT
         select OF
-        select OF_FLATTREE
+        select OF_EARLY_FLATTREE
 
 config SWAP
         def_bool n
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0a9b5b8b2a1..f489ec30e07 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2218,7 +2218,7 @@ config SECCOMP
 config USE_OF
         bool "Flattened Device Tree support"
         select OF
-        select OF_FLATTREE
+        select OF_EARLY_FLATTREE
         help
           Include support for flattened device tree machine descriptions.
 
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e625e9e034a..48fb4790bfe 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -116,7 +116,7 @@ config PPC
         bool
         default y
         select OF
-        select OF_FLATTREE
+        select OF_EARLY_FLATTREE
         select HAVE_FTRACE_MCOUNT_RECORD
         select HAVE_DYNAMIC_FTRACE
         select HAVE_FUNCTION_TRACER