[POWERPC] Support for the Ebony 440GP reference board in arch/powerpc

This adds platform support code for the Ebony (440GP) evaluation
board.  This includes both code in arch/powerpc/platforms/44x for
board initialization, and zImage wrapper code to correctly tweak the
flattened device tree based on information from the firmware.  The
zImage supports both IBM OpenBIOS (aka "treeboot") and old versions of
uboot which don't support a flattened device tree.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 56 insertions, 0 deletions

diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
new file mode 100644
index 00000000000..8e66949e7c6
--- /dev/null
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -0,0 +1,56 @@
+#config BAMBOO
+#	bool "Bamboo"
+#	depends on 44x
+#	default n
+#	select 440EP
+#	help
+#	  This option enables support for the IBM PPC440EP evaluation board.
+
+config EBONY
+	bool "Ebony"
+	depends on 44x
+	default y
+	select 440GP
+	help
+	  This option enables support for the IBM PPC440GP evaluation board.
+
+#config LUAN
+#	bool "Luan"
+#	depends on 44x
+#	default n
+#	select 440SP
+#	help
+#	  This option enables support for the IBM PPC440SP evaluation board.
+
+#config OCOTEA
+#	bool "Ocotea"
+#	depends on 44x
+#	default n
+#	select 440GX
+#	help
+#	  This option enables support for the IBM PPC440GX evaluation board.
+
+# 44x specific CPU modules, selected based on the board above.
+config 440EP
+	bool
+	select PPC_FPU
+	select IBM440EP_ERR42
+
+config 440GP
+	bool
+	select IBM_NEW_EMAC_ZMII
+
+config 440GX
+	bool
+
+config 440SP
+	bool
+
+config 440A
+	bool
+	depends on 440GX
+	default y
+
+# 44x errata/workaround config symbols, selected by the CPU models above
+config IBM440EP_ERR42
+	bool