[ARM] 4874/2: ixp4xx: Add support for the Freecom FSG-3 board

The Freecom-FSG3 is a small network-attached-storage device with the
following feature set:

* Intel IXP422
* 4MB Flash (ixp4xx flash driver)
* 64MB RAM
* 4 USB 2.0 host ports (ehci and ohci drivers)
* 1 WAN (eth1) and 3 LAN (eth0) ethernet ports
  * Supported by the open source ixp4xx ethernet driver
* Via VT6421 disk controller (libata and sata-via drivers)
  * Internal hard disk (PATA supported, SATA not yet supported)
  * External SATA port (not yet supported)
* ISL1208 RTC chip
* Winbond 83782 temp sensor and fan controller
* MiniPCI slot

The ixp4xx_defconfig is also updated to support this device (the
leds-fsg driver is to be submitted separately via the leds tree after
this initial support is merged, as it depends on header gpio defines).

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

3 files changed, 58 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp4xx/fsg.h b/include/asm-arm/arch-ixp4xx/fsg.h
new file mode 100644
index 000000000000..c0100cc7981c
--- /dev/null
+++ b/include/asm-arm/arch-ixp4xx/fsg.h
@@ -0,0 +1,50 @@
+/*
+ * include/asm-arm/arch-ixp4xx/fsg.h
+ *
+ * Freecom FSG-3 platform specific definitions
+ *
+ * Author: Rod Whitby <rod@whitby.id.au>
+ * Author: Tomasz Chmielewski <mangoo@wpkg.org>
+ * Maintainers: http://www.nslu2-linux.org
+ *
+ * Based on coyote.h by
+ * Copyright 2004 (c) MontaVista, Software, Inc.
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#error "Do not include this directly, instead #include <asm/hardware.h>"
+#endif
+
+#define FSG_SDA_PIN             12
+#define FSG_SCL_PIN             13
+
+/*
+ * FSG PCI IRQs
+ */
+#define FSG_PCI_MAX_DEV         3
+#define FSG_PCI_IRQ_LINES       3
+
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define FSG_PCI_INTA_PIN        6
+#define FSG_PCI_INTB_PIN        7
+#define FSG_PCI_INTC_PIN        5
+
+/* Buttons */
+
+#define FSG_SB_GPIO             4       /* sync button */
+#define FSG_RB_GPIO             9       /* reset button */
+#define FSG_UB_GPIO             10      /* usb button */
+
+/* LEDs */
+
+#define FSG_LED_WLAN_BIT        0
+#define FSG_LED_WAN_BIT         1
+#define FSG_LED_SATA_BIT        2
+#define FSG_LED_USB_BIT         4
+#define FSG_LED_RING_BIT        5
+#define FSG_LED_SYNC_BIT        7
diff --git a/include/asm-arm/arch-ixp4xx/hardware.h b/include/asm-arm/arch-ixp4xx/hardware.h
index 73e8dc36f6a4..fa723a627854 100644
--- a/include/asm-arm/arch-ixp4xx/hardware.h
+++ b/include/asm-arm/arch-ixp4xx/hardware.h
@@ -45,5 +45,6 @@
 #include "nslu2.h"
 #include "nas100d.h"
 #include "dsmg600.h"
+#include "fsg.h"
 
 #endif  /* _ASM_ARCH_HARDWARE_H */
diff --git a/include/asm-arm/arch-ixp4xx/irqs.h b/include/asm-arm/arch-ixp4xx/irqs.h
index 11801605047b..674af4a84147 100644
--- a/include/asm-arm/arch-ixp4xx/irqs.h
+++ b/include/asm-arm/arch-ixp4xx/irqs.h
@@ -128,4 +128,11 @@
 #define        IRQ_DSMG600_PCI_INTE    IRQ_IXP4XX_GPIO7
 #define        IRQ_DSMG600_PCI_INTF    IRQ_IXP4XX_GPIO6
 
+/*
+ * Freecom FSG-3 Board IRQs
+ */
+#define        IRQ_FSG_PCI_INTA        IRQ_IXP4XX_GPIO6
+#define        IRQ_FSG_PCI_INTB        IRQ_IXP4XX_GPIO7
+#define        IRQ_FSG_PCI_INTC        IRQ_IXP4XX_GPIO5
+
 #endif