[PATCH 3/3] ARM: vexpress-nommu: add a Makefile.boot to restore single-platform build

[Jonathan Austin]

When a single-platform kernel is built, a machine-specific Makefile.boot is
expected. In the move to a multiplatform kernels this was removed for
vexpress. Assuming AUTO_ZRELADDR is selected and a DT is used, the values
recorded in it are no-longer required. However, the missing file breaks building
of a single platform kernel for vexpress, such as when using vexpress and a
platform without an MMU.

This patch re-instates Makefile.boot for vexpress in single platform
configuration, fixing single-platform build. This change does not affect the
multi-platform kernel.

Signed-off-by: Jonathan Austin <jonathan.austin at arm.com>
---

I'm less sure about this patch than I am about the other two. If anyone has
cleaner suggestions than adding back Makefile.boot then I'd happily consider
them.

This seemed preferable to making point-change just for this case to the generic
include mechanism in arch/arm/Makefile:235, where the Makefile.boot file are
included.

 arch/arm/mach-vexpress/Makefile.boot |    4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 arch/arm/mach-vexpress/Makefile.boot

diff --git a/arch/arm/mach-vexpress/Makefile.boot b/arch/arm/mach-vexpress/Makefile.boot
new file mode 100644
index 0000000..8caa868
--- /dev/null
+++ b/arch/arm/mach-vexpress/Makefile.boot
@@ -0,0 +1,4 @@
+# This is a dummy Makefile.boot for building ARCH_VEXPRESS as a standalone
+# platform as opposed with ARCH_MULTIPLATFORM. It is preferable to use
+# CONFIG_AUTO_ZRELADDR=y and DT but uncomment the line below if you need it.
+#   zreladdr-y	+= 0x00008000
-- 
1.7.9.5