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New PCI fixup version, should better assign IRQs for boards, thanks Gabor ! 

SVN-Revision: 7654
lede-17.01
Florian Fainelli 2007-06-17 14:04:15 +00:00
parent 5a72d6d43e
commit 2c847dc648
1 changed files with 116 additions and 29 deletions
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143
target/linux/adm5120-2.6/files/arch/mips/pci/fixup-adm5120.c
View File

@ -40,6 +40,121 @@
#include <asm/mach-adm5120/adm5120_defs.h> #include <asm/mach-adm5120/adm5120_defs.h>
#include <asm/mach-adm5120/adm5120_irq.h> #include <asm/mach-adm5120/adm5120_irq.h>
struct adm5120_pci_irq {
u8 slot;
u8 func;
u8 pin;
unsigned irq;
};
#define PCIIRQ(s,f,p,i) { \
.slot = (s), \
.func = (f), \
.pin = (p), \
.irq = (i) \
}
static struct adm5120_pci_irq default_pci_irqs[] __initdata = {
PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
};
static struct adm5120_pci_irq rb1xx_pci_irqs[] __initdata = {
PCIIRQ(1, 0, 1, ADM5120_IRQ_PCI0),
PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI1),
PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI2)
};
static struct adm5120_pci_irq cas771_pci_irqs[] __initdata = {
PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI1),
PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
};
static struct adm5120_pci_irq np28g_pci_irqs[] __initdata = {
PCIIRQ(2, 0, 1, ADM5120_IRQ_PCI0),
PCIIRQ(3, 0, 1, ADM5120_IRQ_PCI0),
PCIIRQ(3, 1, 2, ADM5120_IRQ_PCI1),
PCIIRQ(3, 2, 3, ADM5120_IRQ_PCI2)
};
#define GETMAP(n) do { \
nr_irqs = ARRAY_SIZE(n ## _pci_irqs); \
p = n ## _pci_irqs; \
} while (0)
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
struct adm5120_pci_irq *p;
int nr_irqs;
int i;
int irq;
irq = -1;
if (slot < 1 || slot > 3) {
printk("PCI: slot number %u is not supported\n", slot);
goto out;
}
GETMAP(default);
switch (mips_machtype) {
case MACH_ADM5120_RB_111:
case MACH_ADM5120_RB_112:
case MACH_ADM5120_RB_133:
case MACH_ADM5120_RB_133C:
case MACH_ADM5120_RB_153:
GETMAP(rb1xx);
break;
case MACH_ADM5120_NP28G:
GETMAP(np28g);
break;
case MACH_ADM5120_P335:
case MACH_ADM5120_P334WT:
/* using default mapping */
break;
#if 0
case MACH_ADM5120_CAS771:
GETMAP(cas771)
break;
case MACH_ADM5120_CAS630:
case MACH_ADM5120_CAS670:
case MACH_ADM5120_CAS700:
case MACH_ADM5120_CAS790:
case MACH_ADM5120_CAS861:
#endif
case MACH_ADM5120_NP27G:
case MACH_ADM5120_NP28GHS:
case MACH_ADM5120_WP54AG:
case MACH_ADM5120_WP54G:
case MACH_ADM5120_WP54G_WRT:
case MACH_ADM5120_WPP54AG:
case MACH_ADM5120_WPP54G:
default:
printk("PCI: irq map is unknown for %s, using defaults.\n",
adm5120_board_name());
break;
}
for (i=0; i<nr_irqs; i++, p++) {
if ((p->slot == slot) && (PCI_FUNC(dev->devfn) == p->func) &&
(p->pin == pin)) {
irq = p->irq;
break;
}
}
if (irq < 0) {
printk(KERN_INFO "PCI: no irq found for %s pin:%u\n",
pci_name(dev), pin);
} else {
printk(KERN_INFO "PCI: mapping irq for %s pin:%u, irq:%d\n",
pci_name(dev), pin, irq);
}
out:
return irq;
}
static void adm5120_pci_fixup(struct pci_dev *dev) static void adm5120_pci_fixup(struct pci_dev *dev)
{ {
if (dev->devfn != 0) if (dev->devfn != 0)
@ -60,34 +175,6 @@ static void adm5120_pci_fixup(struct pci_dev *dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120, DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ADMTEK, PCI_DEVICE_ID_ADMTEK_ADM5120,
adm5120_pci_fixup); adm5120_pci_fixup);
int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
int irq;
irq = -1;
switch (mips_machtype) {
case MACH_ADM5120_RB_111:
case MACH_ADM5120_RB_112:
case MACH_ADM5120_RB_133:
case MACH_ADM5120_RB_133C:
case MACH_ADM5120_RB_153:
if (slot > 0 && slot < 4)
irq = slot + 5;
break;
default:
if (slot > 1 && slot < 5)
irq = ADM5120_IRQ_PCI0+slot-1;
break;
}
printk(KERN_INFO "PCI: mapping irq for device %s, slot:%u, pin:%u, "
"irq:%d\n", pci_name(dev), slot, pin, irq);
return irq;
}
int pcibios_plat_dev_init(struct pci_dev *dev) int pcibios_plat_dev_init(struct pci_dev *dev)
{ {
return 0; return 0;