mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-09-12 10:37:07 +03:00
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7770 3c298f89-4303-0410-b956-a3cf2f4a3e73
552 lines
16 KiB
Diff
552 lines
16 KiB
Diff
This patch adds support for the D-Link DSM-G600 Rev A.
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This is an ARM XScale IXP4xx system relatively similar to
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the NSLU2 and NAS-100D already supported by mainline. An
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important difference is Gigabit Ethernet support using
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the Via Velocity chipset.
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This patch is the combined work of Michael Westerhof and
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Alessandro Zummo, with contributions from Michael-Luke
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Jones. This version addresses review comments from rmk
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and Deepak Saxena.
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Signed-off-by: Michael-Luke Jones <mlj28@cam.ac.uk>
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Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
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Signed-off-by: Michael Westerhof <mwester@dls.net>
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---
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arch/arm/mach-ixp4xx/Kconfig | 9 +
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arch/arm/mach-ixp4xx/Makefile | 2
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arch/arm/mach-ixp4xx/dsmg600-pci.c | 74 +++++++++++++
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arch/arm/mach-ixp4xx/dsmg600-power.c | 130 ++++++++++++++++++++++++
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arch/arm/mach-ixp4xx/dsmg600-setup.c | 175 +++++++++++++++++++++++++++++++++
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include/asm-arm/arch-ixp4xx/dsmg600.h | 57 ++++++++++
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include/asm-arm/arch-ixp4xx/hardware.h | 1
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include/asm-arm/arch-ixp4xx/irqs.h | 10 +
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8 files changed, 458 insertions(+)
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Index: linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/Kconfig
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===================================================================
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--- linux-2.6.21.1-armeb.orig/arch/arm/mach-ixp4xx/Kconfig
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+++ linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/Kconfig
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@@ -89,6 +89,15 @@
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NAS 100d device. For more information on this platform,
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see http://www.nslu2-linux.org/wiki/NAS100d/HomePage
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+config MACH_DSMG600
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+ bool
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+ prompt "D-Link DSM-G600 RevA"
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+ select PCI
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+ help
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+ Say 'Y' here if you want your kernel to support D-Link's
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+ DSM-G600 RevA device. For more information on this platform,
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+ see http://www.nslu2-linux.org/wiki/DSMG600/HomePage
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+
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#
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# Avila and IXDP share the same source for now. Will change in future
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#
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Index: linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/Makefile
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===================================================================
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--- linux-2.6.21.1-armeb.orig/arch/arm/mach-ixp4xx/Makefile
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+++ linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/Makefile
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@@ -12,6 +12,7 @@
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obj-pci-$(CONFIG_MACH_GTWX5715) += gtwx5715-pci.o
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obj-pci-$(CONFIG_MACH_NSLU2) += nslu2-pci.o
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obj-pci-$(CONFIG_MACH_NAS100D) += nas100d-pci.o
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+obj-pci-$(CONFIG_MACH_DSMG600) += dsmg600-pci.o
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obj-y += common.o
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@@ -22,5 +23,6 @@
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obj-$(CONFIG_MACH_GTWX5715) += gtwx5715-setup.o
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obj-$(CONFIG_MACH_NSLU2) += nslu2-setup.o nslu2-power.o
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obj-$(CONFIG_MACH_NAS100D) += nas100d-setup.o nas100d-power.o
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+obj-$(CONFIG_MACH_DSMG600) += dsmg600-setup.o dsmg600-power.o
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obj-$(CONFIG_PCI) += $(obj-pci-$(CONFIG_PCI)) common-pci.o
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Index: linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-pci.c
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===================================================================
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--- /dev/null
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+++ linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-pci.c
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@@ -0,0 +1,74 @@
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+/*
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+ * DSM-G600 board-level PCI initialization
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+ *
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+ * Copyright (C) 2006 Tower Technologies
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+ * Author: Alessandro Zummo <a.zummo@towertech.it>
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+ *
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+ * based on ixdp425-pci.c:
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+ * Copyright (C) 2002 Intel Corporation.
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+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
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+ *
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+ * Maintainer: http://www.nslu2-linux.org/
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ */
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+
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+#include <linux/pci.h>
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+#include <linux/init.h>
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+#include <linux/irq.h>
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+
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+#include <asm/mach/pci.h>
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+#include <asm/mach-types.h>
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+
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+void __init dsmg600_pci_preinit(void)
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+{
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+ set_irq_type(IRQ_DSMG600_PCI_INTA, IRQT_LOW);
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+ set_irq_type(IRQ_DSMG600_PCI_INTB, IRQT_LOW);
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+ set_irq_type(IRQ_DSMG600_PCI_INTC, IRQT_LOW);
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+ set_irq_type(IRQ_DSMG600_PCI_INTD, IRQT_LOW);
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+ set_irq_type(IRQ_DSMG600_PCI_INTE, IRQT_LOW);
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+ set_irq_type(IRQ_DSMG600_PCI_INTF, IRQT_LOW);
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+
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+ ixp4xx_pci_preinit();
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+}
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+
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+static int __init dsmg600_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
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+{
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+ static int pci_irq_table[DSMG600_PCI_MAX_DEV][DSMG600_PCI_IRQ_LINES] =
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+ {
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+ { IRQ_DSMG600_PCI_INTE, -1, -1 },
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+ { IRQ_DSMG600_PCI_INTA, -1, -1 },
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+ { IRQ_DSMG600_PCI_INTB, IRQ_DSMG600_PCI_INTC, IRQ_DSMG600_PCI_INTD },
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+ { IRQ_DSMG600_PCI_INTF, -1, -1 },
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+ };
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+
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+ int irq = -1;
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+
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+ if (slot >= 1 && slot <= DSMG600_PCI_MAX_DEV &&
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+ pin >= 1 && pin <= DSMG600_PCI_IRQ_LINES)
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+ irq = pci_irq_table[slot-1][pin-1];
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+
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+ return irq;
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+}
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+
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+struct hw_pci __initdata dsmg600_pci = {
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+ .nr_controllers = 1,
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+ .preinit = dsmg600_pci_preinit,
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+ .swizzle = pci_std_swizzle,
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+ .setup = ixp4xx_setup,
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+ .scan = ixp4xx_scan_bus,
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+ .map_irq = dsmg600_map_irq,
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+};
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+
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+int __init dsmg600_pci_init(void)
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+{
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+ if (machine_is_dsmg600())
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+ pci_common_init(&dsmg600_pci);
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+
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+ return 0;
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+}
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+
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+subsys_initcall(dsmg600_pci_init);
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Index: linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
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===================================================================
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--- /dev/null
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+++ linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-power.c
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@@ -0,0 +1,130 @@
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+/*
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+ * arch/arm/mach-ixp4xx/dsmg600-power.c
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+ *
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+ * DSM-G600 Power/Reset driver
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+ * Author: Michael Westerhof <mwester@dls.net>
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+ *
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+ * Based on nslu2-power.c
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+ * Copyright (C) 2005 Tower Technologies
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+ * Author: Alessandro Zummo <a.zummo@towertech.it>
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+ *
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+ * which was based on nslu2-io.c
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+ * Copyright (C) 2004 Karen Spearel
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+ *
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+ * Maintainers: http://www.nslu2-linux.org/
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 as
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+ * published by the Free Software Foundation.
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+ *
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+ */
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+
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+#include <linux/module.h>
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+#include <linux/reboot.h>
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+#include <linux/interrupt.h>
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+#include <linux/irq.h>
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+#include <linux/jiffies.h>
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+#include <linux/timer.h>
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+
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+#include <asm/mach-types.h>
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+
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+extern void ctrl_alt_del(void);
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+
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+/* This is used to make sure the power-button pusher is serious. The button
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+ * must be held until the value of this counter reaches zero.
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+ */
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+static volatile int power_button_countdown;
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+
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+/* Must hold the button down for at least this many counts to be processed */
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+#define PBUTTON_HOLDDOWN_COUNT 4 /* 2 secs */
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+
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+static void dsmg600_power_handler(unsigned long data);
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+static DEFINE_TIMER(dsmg600_power_timer, dsmg600_power_handler, 0, 0);
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+
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+static void dsmg600_power_handler(unsigned long data)
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+{
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+ /* This routine is called twice per second to check the
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+ * state of the power button.
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+ */
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+
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+ if (*IXP4XX_GPIO_GPINR & DSMG600_PB_BM) {
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+
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+ /* IO Pin is 1 (button pushed) */
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+ if (power_button_countdown > 0) {
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+ power_button_countdown--;
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+ }
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+
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+ } else {
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+
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+ /* Done on button release, to allow for auto-power-on mods. */
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+ if (power_button_countdown == 0) {
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+ /* Signal init to do the ctrlaltdel action, this will bypass
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+ * init if it hasn't started and do a kernel_restart.
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+ */
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+ ctrl_alt_del();
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+
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+ /* Change the state of the power LED to "blink" */
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+ gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
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+ } else {
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+ power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
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+ }
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+ }
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+
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+ mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
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+}
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+
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+static irqreturn_t dsmg600_reset_handler(int irq, void *dev_id)
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+{
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+ /* This is the paper-clip reset, it shuts the machine down directly. */
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+ machine_power_off();
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+
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+ return IRQ_HANDLED;
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+}
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+
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+static int __init dsmg600_power_init(void)
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+{
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+ if (!(machine_is_dsmg600()))
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+ return 0;
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+
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+ if (request_irq(DSMG600_RB_IRQ, &dsmg600_reset_handler,
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+ IRQF_DISABLED | IRQF_TRIGGER_LOW, "DSM-G600 reset button",
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+ NULL) < 0) {
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+
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+ printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
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+ DSMG600_RB_IRQ);
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+
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+ return -EIO;
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+ }
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+
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+ /* The power button on the D-Link DSM-G600 is on GPIO 15, but
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+ * it cannot handle interrupts on that GPIO line. So we'll
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+ * have to poll it with a kernel timer.
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+ */
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+
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+ /* Make sure that the power button GPIO is set up as an input */
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+ gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN);
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+
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+ /* Set the initial value for the power button IRQ handler */
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+ power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
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+
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+ mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
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+
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+ return 0;
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+}
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+
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+static void __exit dsmg600_power_exit(void)
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+{
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+ if (!(machine_is_dsmg600()))
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+ return;
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+
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+ del_timer_sync(&dsmg600_power_timer);
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+
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+ free_irq(DSMG600_RB_IRQ, NULL);
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+}
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+
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+module_init(dsmg600_power_init);
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+module_exit(dsmg600_power_exit);
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+
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+MODULE_AUTHOR("Michael Westerhof <mwester@dls.net>");
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+MODULE_DESCRIPTION("DSM-G600 Power/Reset driver");
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+MODULE_LICENSE("GPL");
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Index: linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-setup.c
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===================================================================
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--- /dev/null
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+++ linux-2.6.21.1-armeb/arch/arm/mach-ixp4xx/dsmg600-setup.c
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@@ -0,0 +1,175 @@
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+/*
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+ * DSM-G600 board-setup
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+ *
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+ * Copyright (C) 2006 Tower Technologies
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+ * Author: Alessandro Zummo <a.zummo@towertech.it>
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+ *
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+ * based ixdp425-setup.c:
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+ * Copyright (C) 2003-2004 MontaVista Software, Inc.
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+ *
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+ * Author: Alessandro Zummo <a.zummo@towertech.it>
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+ * Maintainers: http://www.nslu2-linux.org/
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/serial.h>
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+#include <linux/serial_8250.h>
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+
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+#include <asm/mach-types.h>
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+#include <asm/mach/arch.h>
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+#include <asm/mach/flash.h>
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+
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+static struct flash_platform_data dsmg600_flash_data = {
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+ .map_name = "cfi_probe",
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+ .width = 2,
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+};
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+
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+static struct resource dsmg600_flash_resource = {
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+ .flags = IORESOURCE_MEM,
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+};
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+
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+static struct platform_device dsmg600_flash = {
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+ .name = "IXP4XX-Flash",
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+ .id = 0,
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+ .dev.platform_data = &dsmg600_flash_data,
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+ .num_resources = 1,
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+ .resource = &dsmg600_flash_resource,
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+};
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+
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+static struct ixp4xx_i2c_pins dsmg600_i2c_gpio_pins = {
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+ .sda_pin = DSMG600_SDA_PIN,
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+ .scl_pin = DSMG600_SCL_PIN,
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+};
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+
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+static struct platform_device dsmg600_i2c_controller = {
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+ .name = "IXP4XX-I2C",
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+ .id = 0,
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+ .dev.platform_data = &dsmg600_i2c_gpio_pins,
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+};
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+
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+#ifdef CONFIG_LEDS_CLASS
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+static struct resource dsmg600_led_resources[] = {
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+ {
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+ .name = "power",
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+ .start = DSMG600_LED_PWR_GPIO,
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+ .end = DSMG600_LED_PWR_GPIO,
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+ .flags = IXP4XX_GPIO_HIGH,
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+ },
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+ {
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+ .name = "wlan",
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+ .start = DSMG600_LED_WLAN_GPIO,
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+ .end = DSMG600_LED_WLAN_GPIO,
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+ .flags = IXP4XX_GPIO_LOW,
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+ },
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+};
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+
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+static struct platform_device dsmg600_leds = {
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+ .name = "IXP4XX-GPIO-LED",
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+ .id = -1,
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+ .num_resources = ARRAY_SIZE(dsmg600_led_resources),
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+ .resource = dsmg600_led_resources,
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+};
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+#endif
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+
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+static struct resource dsmg600_uart_resources[] = {
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+ {
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+ .start = IXP4XX_UART1_BASE_PHYS,
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+ .end = IXP4XX_UART1_BASE_PHYS + 0x0fff,
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+ .flags = IORESOURCE_MEM,
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+ },
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+ {
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+ .start = IXP4XX_UART2_BASE_PHYS,
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+ .end = IXP4XX_UART2_BASE_PHYS + 0x0fff,
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+ .flags = IORESOURCE_MEM,
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+ }
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+};
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+
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+static struct plat_serial8250_port dsmg600_uart_data[] = {
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+ {
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+ .mapbase = IXP4XX_UART1_BASE_PHYS,
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+ .membase = (char *)IXP4XX_UART1_BASE_VIRT + REG_OFFSET,
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+ .irq = IRQ_IXP4XX_UART1,
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+ .flags = UPF_BOOT_AUTOCONF,
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+ .iotype = UPIO_MEM,
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+ .regshift = 2,
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+ .uartclk = IXP4XX_UART_XTAL,
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+ },
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+ {
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+ .mapbase = IXP4XX_UART2_BASE_PHYS,
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+ .membase = (char *)IXP4XX_UART2_BASE_VIRT + REG_OFFSET,
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+ .irq = IRQ_IXP4XX_UART2,
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+ .flags = UPF_BOOT_AUTOCONF,
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+ .iotype = UPIO_MEM,
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+ .regshift = 2,
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+ .uartclk = IXP4XX_UART_XTAL,
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+ },
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+ { }
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+};
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+
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+static struct platform_device dsmg600_uart = {
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+ .name = "serial8250",
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+ .id = PLAT8250_DEV_PLATFORM,
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+ .dev.platform_data = dsmg600_uart_data,
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+ .num_resources = ARRAY_SIZE(dsmg600_uart_resources),
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+ .resource = dsmg600_uart_resources,
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+};
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+
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+static struct platform_device *dsmg600_devices[] __initdata = {
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+ &dsmg600_i2c_controller,
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+ &dsmg600_flash,
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+};
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+
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+static void dsmg600_power_off(void)
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+{
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+ /* enable the pwr cntl gpio */
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+ gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT);
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+
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+ /* poweroff */
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+ gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
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+}
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+
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+static void __init dsmg600_init(void)
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+{
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+ ixp4xx_sys_init();
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+
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+ /* Make sure that GPIO14 and GPIO15 are not used as clocks */
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+ *IXP4XX_GPIO_GPCLKR = 0;
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+
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+ dsmg600_flash_resource.start = IXP4XX_EXP_BUS_BASE(0);
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+ dsmg600_flash_resource.end =
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+ IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
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+
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+ pm_power_off = dsmg600_power_off;
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+
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+ /* The UART is required on the DSM-G600 (Redboot cannot use the
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+ * NIC) -- do it here so that it does *not* get removed if
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+ * platform_add_devices fails!
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+ */
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+ (void)platform_device_register(&dsmg600_uart);
|
|
+
|
|
+ platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
|
|
+
|
|
+#ifdef CONFIG_LEDS_CLASS
|
|
+ /* We don't care whether or not this works. */
|
|
+ (void)platform_device_register(&dsmg600_leds);
|
|
+#endif
|
|
+}
|
|
+
|
|
+static void __init dsmg600_fixup(struct machine_desc *desc,
|
|
+ struct tag *tags, char **cmdline, struct meminfo *mi)
|
|
+{
|
|
+ /* The xtal on this machine is non-standard. */
|
|
+ ixp4xx_timer_freq = DSMG600_FREQ;
|
|
+}
|
|
+
|
|
+MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
|
|
+ /* Maintainer: www.nslu2-linux.org */
|
|
+ .phys_io = IXP4XX_PERIPHERAL_BASE_PHYS,
|
|
+ .io_pg_offst = ((IXP4XX_PERIPHERAL_BASE_VIRT) >> 18) & 0xFFFC,
|
|
+ .boot_params = 0x00000100,
|
|
+ .fixup = dsmg600_fixup,
|
|
+ .map_io = ixp4xx_map_io,
|
|
+ .init_irq = ixp4xx_init_irq,
|
|
+ .timer = &ixp4xx_timer,
|
|
+ .init_machine = dsmg600_init,
|
|
+MACHINE_END
|
|
Index: linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/dsmg600.h
|
|
===================================================================
|
|
--- /dev/null
|
|
+++ linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/dsmg600.h
|
|
@@ -0,0 +1,57 @@
|
|
+/*
|
|
+ * DSM-G600 platform specific definitions
|
|
+ *
|
|
+ * Copyright (C) 2006 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 DSMG600_SDA_PIN 5
|
|
+#define DSMG600_SCL_PIN 4
|
|
+
|
|
+/*
|
|
+ * DSMG600 PCI IRQs
|
|
+ */
|
|
+#define DSMG600_PCI_MAX_DEV 4
|
|
+#define DSMG600_PCI_IRQ_LINES 3
|
|
+
|
|
+
|
|
+/* PCI controller GPIO to IRQ pin mappings */
|
|
+#define DSMG600_PCI_INTA_PIN 11
|
|
+#define DSMG600_PCI_INTB_PIN 10
|
|
+#define DSMG600_PCI_INTC_PIN 9
|
|
+#define DSMG600_PCI_INTD_PIN 8
|
|
+#define DSMG600_PCI_INTE_PIN 7
|
|
+#define DSMG600_PCI_INTF_PIN 6
|
|
+
|
|
+/* DSM-G600 Timer Setting */
|
|
+#define DSMG600_FREQ 66000000
|
|
+
|
|
+/* Buttons */
|
|
+
|
|
+#define DSMG600_PB_GPIO 15 /* power button */
|
|
+#define DSMG600_PB_BM (1L << DSMG600_PB_GPIO)
|
|
+
|
|
+#define DSMG600_RB_GPIO 3 /* reset button */
|
|
+
|
|
+#define DSMG600_RB_IRQ IRQ_IXP4XX_GPIO3
|
|
+
|
|
+#define DSMG600_PO_GPIO 2 /* power off */
|
|
+
|
|
+/* LEDs */
|
|
+
|
|
+#define DSMG600_LED_PWR_GPIO 0
|
|
+#define DSMG600_LED_PWR_BM (1L << DSMG600_LED_PWR_GPIO)
|
|
+
|
|
+#define DSMG600_LED_WLAN_GPIO 14
|
|
+#define DSMG600_LED_WLAN_BM (1L << DSMG600_LED_WLAN_GPIO)
|
|
Index: linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/hardware.h
|
|
===================================================================
|
|
--- linux-2.6.21.1-armeb.orig/include/asm-arm/arch-ixp4xx/hardware.h
|
|
+++ linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/hardware.h
|
|
@@ -47,5 +47,6 @@
|
|
#include "prpmc1100.h"
|
|
#include "nslu2.h"
|
|
#include "nas100d.h"
|
|
+#include "dsmg600.h"
|
|
|
|
#endif /* _ASM_ARCH_HARDWARE_H */
|
|
Index: linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/irqs.h
|
|
===================================================================
|
|
--- linux-2.6.21.1-armeb.orig/include/asm-arm/arch-ixp4xx/irqs.h
|
|
+++ linux-2.6.21.1-armeb/include/asm-arm/arch-ixp4xx/irqs.h
|
|
@@ -118,4 +118,14 @@
|
|
#define IRQ_NAS100D_PCI_INTD IRQ_IXP4XX_GPIO8
|
|
#define IRQ_NAS100D_PCI_INTE IRQ_IXP4XX_GPIO7
|
|
|
|
+/*
|
|
+ * D-Link DSM-G600 RevA board IRQs
|
|
+ */
|
|
+#define IRQ_DSMG600_PCI_INTA IRQ_IXP4XX_GPIO11
|
|
+#define IRQ_DSMG600_PCI_INTB IRQ_IXP4XX_GPIO10
|
|
+#define IRQ_DSMG600_PCI_INTC IRQ_IXP4XX_GPIO9
|
|
+#define IRQ_DSMG600_PCI_INTD IRQ_IXP4XX_GPIO8
|
|
+#define IRQ_DSMG600_PCI_INTE IRQ_IXP4XX_GPIO7
|
|
+#define IRQ_DSMG600_PCI_INTF IRQ_IXP4XX_GPIO6
|
|
+
|
|
#endif
|