AMCC PPC 460SX redwood SoC platform initial framework

This patch contains initial framework for the AMCC Redwood board.

Signed-off-by: Madhulika Madishetty <mmadishetty@amcc.com>
Signed-off-by: Tirumala Marri <tmarri@amcc.com>
Signed-off-by: Feng Kan <fkan@amcc.com>
Signed-off-by: Vidhyananth Venkatasamy <vvenkatasamy@amcc.com>
Signed-off-by: Preetesh Parekh <pparekh@amcc.com>
Acked-by: Loc Ho <lho@amcc.com>
Acked-by: Feng Kan <fkan@amcc.com>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
diff --git a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
index 3496bc0..bf5c7ff 100644
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -118,6 +118,17 @@
 	help
 	  This option enables support for the AMCC PPC460GT evaluation board.
 
+config REDWOOD
+	bool "Redwood"
+	depends on 44x
+	default n
+	select PPC44x_SIMPLE
+	select 460SX
+	select PCI
+	select PPC4xx_PCI_EXPRESS
+	help
+	  This option enables support for the AMCC PPC460SX Redwood board.
+
 config YOSEMITE
 	bool "Yosemite"
 	depends on 44x
@@ -220,6 +231,14 @@
 	select IBM_NEW_EMAC_EMAC4
 	select IBM_NEW_EMAC_TAH
 
+config 460SX
+	bool
+	select PPC_FPU
+	select IBM_NEW_EMAC_EMAC4
+	select IBM_NEW_EMAC_RGMII
+	select IBM_NEW_EMAC_ZMII
+	select IBM_NEW_EMAC_TAH
+
 # 44x errata/workaround config symbols, selected by the CPU models above
 config IBM440EP_ERR42
 	bool