[ARM] 3215/1: Iomega NAS 100d (MACH_NAS100D) machine support

Patch from Rod Whitby

This patch adds support for a new arm/ixp4xx machine - the Iomega NAS 100d network attached storage product.  The NAS100D is a consumer device containing a 266MHz Intel IXP420 processor, 16MB of flash, 64MB of RAM, a 160Gb internal IDE hard disk, and 802.11b/g wireless on an Atheros mini-PCI card.

Work on porting the latest 2.6.x kernel to this device is being done by
the NSLU2-Linux project (the same team who maintains the port to the
Linksys NSLU2 device).  In particular, the majority of this patch was
authored by Alessandro Zummo, based on the work done for MACH_NSLU2
support by the NSLU2-Linux core team of developers.

MACH_NAS100D (as implemented by this patch) can be enabled in jumbo
ixp4xx kernels without any affect on the other machines supported by
that kernel.

This patch applies cleanly against 2.6.15-rc7 and should be trivial to
apply to later kernel versions. It does not depend upon any other
patches.

Modified files (and number of lines inserted):
 arch/arm/mach-ixp4xx/Kconfig           |    8
 arch/arm/mach-ixp4xx/Makefile          |    1
 include/asm-arm/arch-ixp4xx/hardware.h |    1
 include/asm-arm/arch-ixp4xx/irqs.h     |    9
 include/asm-arm/arch-ixp4xx/nas100d.h  |   75
 arch/arm/mach-ixp4xx/nas100d-pci.c     |   77
 arch/arm/mach-ixp4xx/nas100d-power.c   |   69
 arch/arm/mach-ixp4xx/nas100d-setup.c   |  133

-- Rod Whitby (NSLU2-Linux project lead)

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

3 files changed, 85 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ixp4xx/hardware.h b/include/asm-arm/arch-ixp4xx/hardware.h
index cfb413c845f7..6acb69c95ef9 100644
--- a/include/asm-arm/arch-ixp4xx/hardware.h
+++ b/include/asm-arm/arch-ixp4xx/hardware.h
@@ -45,5 +45,6 @@ extern unsigned int processor_id;
 #include "coyote.h"
 #include "prpmc1100.h"
 #include "nslu2.h"
+#include "nas100d.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 2cf4930372bc..f24b763ca18e 100644
--- a/include/asm-arm/arch-ixp4xx/irqs.h
+++ b/include/asm-arm/arch-ixp4xx/irqs.h
@@ -100,4 +100,13 @@
 #define        IRQ_NSLU2_PCI_INTB      IRQ_IXP4XX_GPIO10
 #define        IRQ_NSLU2_PCI_INTC      IRQ_IXP4XX_GPIO9
 
+/*
+ * NAS100D board IRQs
+ */
+#define        IRQ_NAS100D_PCI_INTA    IRQ_IXP4XX_GPIO11
+#define        IRQ_NAS100D_PCI_INTB    IRQ_IXP4XX_GPIO10
+#define        IRQ_NAS100D_PCI_INTC    IRQ_IXP4XX_GPIO9
+#define        IRQ_NAS100D_PCI_INTD    IRQ_IXP4XX_GPIO8
+#define        IRQ_NAS100D_PCI_INTE    IRQ_IXP4XX_GPIO7
+
 #endif
diff --git a/include/asm-arm/arch-ixp4xx/nas100d.h b/include/asm-arm/arch-ixp4xx/nas100d.h
new file mode 100644
index 000000000000..ce7a86a98fc2
--- /dev/null
+++ b/include/asm-arm/arch-ixp4xx/nas100d.h
@@ -0,0 +1,75 @@
+/*
+ * include/asm-arm/arch-ixp4xx/nas100d.h
+ *
+ * NAS100D platform specific definitions
+ *
+ * Copyright (c) 2005 Tower Technologies
+ *
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
+ *
+ * based on ixdp425.h:
+ *      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 NAS100D_FLASH_BASE      IXP4XX_EXP_BUS_CS0_BASE_PHYS
+#define NAS100D_FLASH_SIZE      IXP4XX_EXP_BUS_CSX_REGION_SIZE
+
+#define NAS100D_SDA_PIN         6
+#define NAS100D_SCL_PIN         5
+
+/*
+ * NAS100D PCI IRQs
+ */
+#define NAS100D_PCI_MAX_DEV     3
+#define NAS100D_PCI_IRQ_LINES   3
+
+
+/* PCI controller GPIO to IRQ pin mappings */
+#define NAS100D_PCI_INTA_PIN    11
+#define NAS100D_PCI_INTB_PIN    10
+#define NAS100D_PCI_INTC_PIN    9
+#define NAS100D_PCI_INTD_PIN    8
+#define NAS100D_PCI_INTE_PIN    7
+
+/* GPIO */
+
+#define NAS100D_GPIO0           0
+#define NAS100D_GPIO1           1
+#define NAS100D_GPIO2           2
+#define NAS100D_GPIO3           3
+#define NAS100D_GPIO4           4
+#define NAS100D_GPIO5           5
+#define NAS100D_GPIO6           6
+#define NAS100D_GPIO7           7
+#define NAS100D_GPIO8           8
+#define NAS100D_GPIO9           9
+#define NAS100D_GPIO10          10
+#define NAS100D_GPIO11          11
+#define NAS100D_GPIO12          12
+#define NAS100D_GPIO13          13
+#define NAS100D_GPIO14          14
+#define NAS100D_GPIO15          15
+
+
+/* Buttons */
+
+#define NAS100D_PB_GPIO         NAS100D_GPIO14
+#define NAS100D_RB_GPIO         NAS100D_GPIO4
+#define NAS100D_PO_GPIO         NAS100D_GPIO12   /* power off */
+
+#define NAS100D_PB_IRQ          IRQ_IXP4XX_GPIO14
+#define NAS100D_RB_IRQ          IRQ_IXP4XX_GPIO4
+
+/*
+#define NAS100D_PB_BM           (1L << NAS100D_PB_GPIO)
+#define NAS100D_PO_BM           (1L << NAS100D_PO_GPIO)
+#define NAS100D_RB_BM           (1L << NAS100D_RB_GPIO)
+*/