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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Nikolay Petukhov <nikolay.petukhov@gmail.com>
* Copyright (C) 2007 Kenji Noguchi <tokyo246@gmail.com>
*
* 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
*/
#include <arch/pirq_routing.h>
#include <console/console.h>
#include <device/pci.h>
/* Platform IRQs */
#define PIRQA 11
#define PIRQB 10
#define PIRQC 9
#define PIRQD 12
/* Link */
#define LINK_PIRQA 1
#define LINK_PIRQB 2
#define LINK_PIRQC 3
#define LINK_PIRQD 4
#define LINK_NONE 0
/* Map */
#define IRQ_BITMAP_LINKA (1 << PIRQA)
#define IRQ_BITMAP_LINKB (1 << PIRQB)
#define IRQ_BITMAP_LINKC (1 << PIRQC)
#define IRQ_BITMAP_LINKD (1 << PIRQD)
#define IRQ_BITMAP_NOLINK 0x0
#define EXCLUSIVE_PCI_IRQS (IRQ_BITMAP_LINKA | IRQ_BITMAP_LINKB | IRQ_BITMAP_LINKC | IRQ_BITMAP_LINKD)
static const struct irq_routing_table intel_irq_routing_table = {
PIRQ_SIGNATURE, /* u32 signature */
PIRQ_VERSION, /* u16 version */
32+16*CONFIG_IRQ_SLOT_COUNT, /* There can be a total of CONFIG_IRQ_SLOT_COUNT devices on the bus */
0x00, /* Where the interrupt router lies (bus) */
(0x12<<3)|0x0, /* Where the interrupt router lies (dev) */
EXCLUSIVE_PCI_IRQS, /* IRQs devoted exclusively to PCI usage */
0x1078, /* Vendor */
0x1, /* Device */
0, /* Miniport data */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
0x60, /* u8 checksum. This has to be set to some
value that would give 0 after the sum of all
bytes for this structure (including checksum) */
.slots = {
[0] = {
.slot = 0x0, /* means also "on board" */
.bus = 0x00,
.devfn = (0x13<<3)|0x0, /* 0x13 is USB OHCI */
.irq = {
[0] = { /* <-- 0 means this is INTA# output from the device or slot */
.link = LINK_PIRQA,
.bitmap = IRQ_BITMAP_LINKA
},
[1] = { /* <-- 1 means this is INTB# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
},
[2] = { /* <-- 2 means this is INTC# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
},
[3] = { /* <-- 3 means this is INTD# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
}
}
},
[1] = {
.slot = 0x0, /* means also "on board" */
.bus = 0x00,
.devfn = (0x15<<3)|0x0, /* 0x15 is NSC Network device */
.irq = {
[0] = { /* <-- 0 means this is INTA# output from the device or slot */
.link = LINK_PIRQB,
.bitmap = IRQ_BITMAP_LINKB
},
[1] = { /* <-- 1 means this is INTB# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
},
[2] = { /* <-- 2 means this is INTC# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
},
[3] = { /* <-- 3 means this is INTD# output from the device or slot */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
}
}
},
[2] = {
.slot = 0x1, /* This is a Mini PCI slot */
.bus = 0x00,
.devfn = (0x14<<3)|0x0,
.irq = {
[0] = { /* <-- 0 means this is INTA# output from the device or slot */
.link = LINK_PIRQC,
.bitmap = IRQ_BITMAP_LINKC
},
[1] = { /* <-- 1 means this is INTB# output from the device or slot */
/* NEEDSWORK: not confirmed. No device to test which uses both INTA and INTB */
.link = LINK_PIRQD,
.bitmap = IRQ_BITMAP_LINKD
},
[2] = { /* No INTC# for Mini PCI */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
},
[3] = { /* No INTD# for Mini PCI */
.link = LINK_NONE,
.bitmap = IRQ_BITMAP_NOLINK
}
}
},
}
};
/**
* Copy the IRQ routing table to memory.
*
* @param addr Destination address (between 0xF0000...0x100000).
* @return The end address of the pirq routing table in memory.
*/
unsigned long write_pirq_routing_table(unsigned long addr)
{
return copy_pirq_routing_table(addr, &intel_irq_routing_table);
}
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