arm: kirkwood: add ZyXEL NSA310S device

This patch add ZyXEL NSA310S 1-Bay Media Server

The ZyXEL NSA310S device is a Kirkwood based NAS:

- SoC: Marvell 88F6702 1000Mhz
- SDRAM memory: 256MB DDR2 400Mhz
- Gigabit ethernet: PHY Marvell 88E1318
- Flash memory: 128MB
- 1 Power button
- 1 Power LED (blue)
- 4 Status LED (green)
- 1 Copy/Sync button
- 1 Reset button
- 1 SATA II port
- 2 USB 2.0 ports (front and back)
- Smart fan

Signed-off-by: Gerald Kerma <dreagle@doukki.net>
Signed-off-by: Tony Dinh <mibodhi@gmail.com>
Signed-off-by: Luka Perkov <luka.perkov@sartura.hr>
diff --git a/board/zyxel/nsa310s/nsa310s.h b/board/zyxel/nsa310s/nsa310s.h
new file mode 100644
index 0000000..1ea1105
--- /dev/null
+++ b/board/zyxel/nsa310s/nsa310s.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2015
+ * Gerald Kerma <dreagle@doukki.net>
+ * Tony Dinh <mibodhi@gmail.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __NSA310S_H
+#define __NSA310S_H
+
+/* low GPIO's */
+#define HDD1_GREEN_LED		(1 << 16)
+#define HDD1_RED_LED		(1 << 13)
+#define USB_GREEN_LED		(1 << 15)
+#define USB_POWER			(1 << 21)
+#define SYS_GREEN_LED		(1 << 28)
+#define SYS_ORANGE_LED		(1 << 29)
+
+#define COPY_GREEN_LED		(1 << 22)
+#define COPY_RED_LED		(1 << 23)
+
+#define PIN_USB_GREEN_LED	15
+#define PIN_USB_POWER		21
+
+#define NSA310S_OE_LOW		(~(0))
+#define NSA310S_VAL_LOW		(SYS_GREEN_LED | USB_POWER)
+
+/* high GPIO's */
+#define HDD2_GREEN_LED		(1 << 2)
+#define HDD2_POWER			(1 << 1)
+
+#define NSA310S_OE_HIGH		(~(0))
+#define NSA310S_VAL_HIGH	(HDD2_POWER)
+
+/* PHY related */
+#define MV88E1318_PGADR_REG		22
+#define MV88E1318_MAC_CTRL_PG	2
+#define MV88E1318_MAC_CTRL_REG	21
+#define MV88E1318_RGMII_TX_CTRL	(1 << 4)
+#define MV88E1318_RGMII_RX_CTRL	(1 << 5)
+#define MV88E1318_LED_PG		3
+#define MV88E1318_LED_POL_REG	17
+#define MV88E1318_LED2_4		(1 << 4)
+#define MV88E1318_LED2_5		(1 << 5)
+
+#endif /* __NSA310S_H */