powerpc: Add WSP platform
Add a platform for the Wire Speed Processor, based on the PPC A2.
This includes code for the ICS & OPB interrupt controllers, as well
as a SCOM backend, and SCOM based cpu bringup.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Jack Miller <jack@codezen.org>
Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/arch/powerpc/platforms/wsp/Kconfig b/arch/powerpc/platforms/wsp/Kconfig
new file mode 100644
index 0000000..c3c48eb
--- /dev/null
+++ b/arch/powerpc/platforms/wsp/Kconfig
@@ -0,0 +1,28 @@
+config PPC_WSP
+ bool
+ default n
+
+menu "WSP platform selection"
+ depends on PPC_BOOK3E_64
+
+config PPC_PSR2
+ bool "PSR-2 platform"
+ select PPC_A2
+ select GENERIC_TBSYNC
+ select PPC_SCOM
+ select EPAPR_BOOT
+ select PPC_WSP
+ select PPC_XICS
+ select PPC_ICP_NATIVE
+ default y
+
+endmenu
+
+config PPC_A2_DD2
+ bool "Support for DD2 based A2/WSP systems"
+ depends on PPC_A2
+
+config WORKAROUND_ERRATUM_463
+ depends on PPC_A2_DD2
+ bool "Workaround erratum 463"
+ default y