feat(plat/allwinner): add R329 support

Allwinner R329 is a new dual-core Corte-A53 SoC. Add basical TF-A
support for it, to provide a PSCI implementation containing CPU
boot/shutdown and SoC reset.

Change-Id: I0fa37ee9b4a8e0e1137bf7cf7d614b6ca9624bfe
Signed-off-by: Icenowy Zheng <icenowy@sipeed.com>
diff --git a/plat/allwinner/sun50i_r329/include/sunxi_spc.h b/plat/allwinner/sun50i_r329/include/sunxi_spc.h
new file mode 100644
index 0000000..2c87bca
--- /dev/null
+++ b/plat/allwinner/sun50i_r329/include/sunxi_spc.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (c) 2021 Sipeed
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef SUNXI_SPC_H
+#define SUNXI_SPC_H
+
+/* Get by REing stock ATF and checking initialization loop boundary */
+#define SUNXI_SPC_NUM_PORTS		11
+
+#define SUNXI_SPC_DECPORT_STA_REG(p)	(SUNXI_SPC_BASE + 0x0000 + 0x10 * (p))
+#define SUNXI_SPC_DECPORT_SET_REG(p)	(SUNXI_SPC_BASE + 0x0004 + 0x10 * (p))
+#define SUNXI_SPC_DECPORT_CLR_REG(p)	(SUNXI_SPC_BASE + 0x0008 + 0x10 * (p))
+
+#endif /* SUNXI_SPC_H */