mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
52 lines
1.5 KiB
52 lines
1.5 KiB
// SPDX-License-Identifier: GPL-2.0 |
|
#include <linux/init.h> |
|
#include <linux/kernel.h> |
|
#include <linux/pci.h> |
|
#include <asm/ip32/ip32_ints.h> |
|
/* |
|
* O2 has up to 5 PCI devices connected into the MACE bridge. The device |
|
* map looks like this: |
|
* |
|
* 0 aic7xxx 0 |
|
* 1 aic7xxx 1 |
|
* 2 expansion slot |
|
* 3 N/C |
|
* 4 N/C |
|
*/ |
|
|
|
#define SCSI0 MACEPCI_SCSI0_IRQ |
|
#define SCSI1 MACEPCI_SCSI1_IRQ |
|
#define INTA0 MACEPCI_SLOT0_IRQ |
|
#define INTA1 MACEPCI_SLOT1_IRQ |
|
#define INTA2 MACEPCI_SLOT2_IRQ |
|
#define INTB MACEPCI_SHARED0_IRQ |
|
#define INTC MACEPCI_SHARED1_IRQ |
|
#define INTD MACEPCI_SHARED2_IRQ |
|
static char irq_tab_mace[][5] = { |
|
/* Dummy INT#A INT#B INT#C INT#D */ |
|
{0, 0, 0, 0, 0}, /* This is placeholder row - never used */ |
|
{0, SCSI0, SCSI0, SCSI0, SCSI0}, |
|
{0, SCSI1, SCSI1, SCSI1, SCSI1}, |
|
{0, INTA0, INTB, INTC, INTD}, |
|
{0, INTA1, INTC, INTD, INTB}, |
|
{0, INTA2, INTD, INTB, INTC}, |
|
}; |
|
|
|
|
|
/* |
|
* Given a PCI slot number (a la PCI_SLOT(...)) and the interrupt pin of |
|
* the device (1-4 => A-D), tell what irq to use. Note that we don't |
|
* in theory have slots 4 and 5, and we never normally use the shared |
|
* irqs. I suppose a device without a pin A will thank us for doing it |
|
* right if there exists such a broken piece of crap. |
|
*/ |
|
int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
|
{ |
|
return irq_tab_mace[slot][pin]; |
|
} |
|
|
|
/* Do platform specific device initialization at pci_enable_device() time */ |
|
int pcibios_plat_dev_init(struct pci_dev *dev) |
|
{ |
|
return 0; |
|
}
|
|
|