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this fixes 3 of 4 mainboards failed by the error on missing IRQ_SLOT_COUNT. 

The third, MSI MS9652, creates an IRQ table on the fly, no kidding.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5322 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer 2010-03-30 00:22:29 +00:00 committed by Stefan Reinauer
parent 8e726b7363
commit 7ac3df8ae2
1 changed files with 17 additions and 15 deletions
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32
src/arch/i386/include/arch/pirq_routing.h
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@ -1,19 +1,20 @@
#ifndef ARCH_PIRQ_ROUTING_H
#define ARCH_PIRQ_ROUTING_H
#if CONFIG_GENERATE_PIRQ_TABLE==1
#include <stdint.h>
#define PIRQ_SIGNATURE (('$' << 0) + ('P' << 8) + ('I' << 16) + ('R' << 24))
#define PIRQ_VERSION 0x0100
struct irq_info {
uint8_t bus, devfn; /* Bus, device and function */
u8 bus, devfn; /* Bus, device and function */
struct {
uint8_t link; /* IRQ line ID, chipset dependent, 0=not routed */
uint16_t bitmap; /* Available IRQs */
u8 link; /* IRQ line ID, chipset dependent, 0=not routed */
u16 bitmap; /* Available IRQs */
} __attribute__((packed)) irq[4];
uint8_t slot; /* Slot number, 0=onboard */
uint8_t rfu;
u8 slot; /* Slot number, 0=onboard */
u8 rfu;
} __attribute__((packed));
#if !defined(CONFIG_IRQ_SLOT_COUNT)
@ -21,29 +22,30 @@ struct irq_info {
#endif
struct irq_routing_table {
uint32_t signature; /* PIRQ_SIGNATURE should be here */
uint16_t version; /* PIRQ_VERSION */
uint16_t size; /* Table size in bytes */
uint8_t rtr_bus, rtr_devfn; /* Where the interrupt router lies */
uint16_t exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
uint16_t rtr_vendor, rtr_device; /* Vendor and device ID of interrupt router */
uint32_t miniport_data; /* Crap */
uint8_t rfu[11];
uint8_t checksum; /* Modulo 256 checksum must give zero */
u32 signature; /* PIRQ_SIGNATURE should be here */
u16 version; /* PIRQ_VERSION */
u16 size; /* Table size in bytes */
u8 rtr_bus, rtr_devfn; /* Where the interrupt router lies */
u16 exclusive_irqs; /* IRQs devoted exclusively to PCI usage */
u16 rtr_vendor, rtr_device;/* Vendor/device ID of interrupt router */
u32 miniport_data;
u8 rfu[11];
u8 checksum; /* Modulo 256 checksum must give zero */
struct irq_info slots[CONFIG_IRQ_SLOT_COUNT];
} __attribute__((packed));
extern const struct irq_routing_table intel_irq_routing_table;
#if CONFIG_GENERATE_PIRQ_TABLE==1
unsigned long copy_pirq_routing_table(unsigned long start);
unsigned long write_pirq_routing_table(unsigned long start);
#if CONFIG_PIRQ_ROUTE==1
void pirq_routing_irqs(unsigned long start);
void pirq_assign_irqs(const unsigned char pIntAtoD[4]);
#else
#define pirq_routing_irqs(start) {}
#endif
#else
#define copy_pirq_routing_table(start) (start)
#define write_pirq_routing_table(start) (start)