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[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>
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Rod Whitby
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Russell King
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Apr 4, 2008
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,71 @@ | ||
| /* | ||
| * arch/arch/mach-ixp4xx/fsg-pci.c | ||
| * | ||
| * FSG board-level PCI initialization | ||
| * | ||
| * Author: Rod Whitby <rod@whitby.id.au> | ||
| * Maintainer: http://www.nslu2-linux.org/ | ||
| * | ||
| * based on ixdp425-pci.c: | ||
| * Copyright (C) 2002 Intel Corporation. | ||
| * Copyright (C) 2003-2004 MontaVista Software, Inc. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| */ | ||
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| #include <linux/pci.h> | ||
| #include <linux/init.h> | ||
| #include <linux/irq.h> | ||
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| #include <asm/mach/pci.h> | ||
| #include <asm/mach-types.h> | ||
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| void __init fsg_pci_preinit(void) | ||
| { | ||
| set_irq_type(IRQ_FSG_PCI_INTA, IRQT_LOW); | ||
| set_irq_type(IRQ_FSG_PCI_INTB, IRQT_LOW); | ||
| set_irq_type(IRQ_FSG_PCI_INTC, IRQT_LOW); | ||
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| ixp4xx_pci_preinit(); | ||
| } | ||
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| static int __init fsg_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | ||
| { | ||
| static int pci_irq_table[FSG_PCI_IRQ_LINES] = { | ||
| IRQ_FSG_PCI_INTC, | ||
| IRQ_FSG_PCI_INTB, | ||
| IRQ_FSG_PCI_INTA, | ||
| }; | ||
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| int irq = -1; | ||
| slot = slot - 11; | ||
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| if (slot >= 1 && slot <= FSG_PCI_MAX_DEV && | ||
| pin >= 1 && pin <= FSG_PCI_IRQ_LINES) | ||
| irq = pci_irq_table[(slot - 1)]; | ||
| printk(KERN_INFO "%s: Mapped slot %d pin %d to IRQ %d\n", | ||
| __func__, slot, pin, irq); | ||
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| return irq; | ||
| } | ||
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| struct hw_pci fsg_pci __initdata = { | ||
| .nr_controllers = 1, | ||
| .preinit = fsg_pci_preinit, | ||
| .swizzle = pci_std_swizzle, | ||
| .setup = ixp4xx_setup, | ||
| .scan = ixp4xx_scan_bus, | ||
| .map_irq = fsg_map_irq, | ||
| }; | ||
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| int __init fsg_pci_init(void) | ||
| { | ||
| if (machine_is_fsg()) | ||
| pci_common_init(&fsg_pci); | ||
| return 0; | ||
| } | ||
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| subsys_initcall(fsg_pci_init); |
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