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/*
* This file is part of the LinuxBIOS project.
*
* Copyright (C) 2007 Juergen Beisert <juergen@kreuzholzen.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Interrupt routing description for BCOM's Winnet100 board.
* It was not possible to read back the pirq-Table. In the 0xF segment was
* no string like $PIRQ...
* But the already running 2.4.21 kernel provides eth0 IRQ15 and USB IRQ 11.
* The Realtek was device 0.f.0, the USB 0.13.0.
*
* This is the physical routing on this board:
*
* 5530 USB Network
* northbridge device device
* 00.13.0 00.0f.00
* ------------------------------------
* INTA# INTA# n.c.
* INTB# n.c. n.c.
* INTC# n.c. INTA#
* INTD# n.c. n.c.
*/
#include <arch/pirq_routing.h>
/*
* The USB controller should be connected to IRQ11,
* the network controller should be connected to IRQ15.
*/
#define IRQ_BITMAP_LINK0 0x0800
#define IRQ_BITMAP_LINK1 0x0400
#define IRQ_BITMAP_LINK2 0x8000
#define IRQ_BITMAP_LINK3 0x0200
/** Reserved interrupt channels for PCI. */
#define IRQ_DEVOTED_TO_PCI (IRQ_BITMAP_LINK0 | IRQ_BITMAP_LINK2)
/**
* Routing description.
* Documentation at: http://www.microsoft.com/whdc/archive/pciirq.mspx
*/
const struct irq_routing_table intel_irq_routing_table = {
.signature = PIRQ_SIGNATURE, /* u32 signature */
.version = PIRQ_VERSION, /* u16 version */
.size = 32+16*IRQ_SLOT_COUNT, /* There can be total IRQ_SLOT_COUNT devices on the bus */
.rtr_bus = 0x00, /* Where the interrupt router lies (bus) */
.rtr_devfn = (0x12<<3)|0x0, /* Where the interrupt router lies (dev) */
.exclusive_irqs = IRQ_DEVOTED_TO_PCI, /* IRQs devoted exclusively to PCI usage */
.rtr_vendor = 0x1078, /* Vendor */
.rtr_device = 0x0100, /* Device */
.miniport_data = 0, /* Crap (miniport) */
.checksum = 0xBF+16,
.slots = {
/*
* Definition for "slot#1". There is no real slot,
* the USB device is embedded...
*/
[0] = {
.bus = 0x00,
.devfn = (0x13 << 3) | 0x0,
.irq = {
[0] = {
.link = 0x01, /* INT A */
.bitmap = IRQ_BITMAP_LINK0,
},
[1] = {
.link = 0x02, /* INT B */
.bitmap = IRQ_BITMAP_LINK1,
},
[2] = {
.link = 0x03, /* INT C */
.bitmap = IRQ_BITMAP_LINK2,
},
[3] = {
.link = 0x04, /* INT D */
.bitmap = IRQ_BITMAP_LINK3,
}
},
.slot = 0x0,
},
/*
* Definition for "slot#3". There is no real slot,
* the network device is soldered...
*/
[1] = {
.bus = 0x00,
.devfn = (0x0f << 3) | 0x0,
.irq = {
[0] = {
.link = 0x03,
.bitmap = IRQ_BITMAP_LINK2,
},
[1] = {
.link = 0x04,
.bitmap = IRQ_BITMAP_LINK3,
},
[2] = {
.link = 0x01,
.bitmap = IRQ_BITMAP_LINK0,
},
[3] = {
.link = 0x02,
.bitmap = IRQ_BITMAP_LINK1,
}
},
.slot = 0x0,
}
}
};
/**
* Copy the IRQ routing table to memory.
*
* @param[in] addr Destination address (between 0xF0000...0x100000).
* @return TODO.
*/
unsigned long write_pirq_routing_table(unsigned long addr)
{
return copy_pirq_routing_table(addr);
}
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