-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Merge branch 'ixp/board' into next/board
- Loading branch information
Showing
5 changed files
with
376 additions
and
1 deletion.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,78 @@ | ||
/* | ||
* arch/arm/mach-ixp4xx/miccpt-pci.c | ||
* | ||
* MICCPT board-level PCI initialization | ||
* | ||
* Copyright (C) 2002 Intel Corporation. | ||
* Copyright (C) 2003-2004 MontaVista Software, Inc. | ||
* Copyright (C) 2006 OMICRON electronics GmbH | ||
* | ||
* Author: Michael Jochum <michael.jochum@omicron.at> | ||
* | ||
* This program is free software; you can redistribute it and/or modify | ||
* it under the terms of the GNU General Public License version 2 as | ||
* published by the Free Software Foundation. | ||
* | ||
*/ | ||
|
||
#include <linux/kernel.h> | ||
#include <linux/pci.h> | ||
#include <linux/init.h> | ||
#include <linux/delay.h> | ||
#include <linux/irq.h> | ||
#include <asm/mach/pci.h> | ||
#include <asm/irq.h> | ||
#include <mach/hardware.h> | ||
#include <asm/mach-types.h> | ||
|
||
#define MAX_DEV 4 | ||
#define IRQ_LINES 4 | ||
|
||
/* PCI controller GPIO to IRQ pin mappings */ | ||
#define INTA 1 | ||
#define INTB 2 | ||
#define INTC 3 | ||
#define INTD 4 | ||
|
||
|
||
void __init miccpt_pci_preinit(void) | ||
{ | ||
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW); | ||
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW); | ||
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTC), IRQ_TYPE_LEVEL_LOW); | ||
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTD), IRQ_TYPE_LEVEL_LOW); | ||
ixp4xx_pci_preinit(); | ||
} | ||
|
||
static int __init miccpt_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) | ||
{ | ||
static int pci_irq_table[IRQ_LINES] = { | ||
IXP4XX_GPIO_IRQ(INTA), | ||
IXP4XX_GPIO_IRQ(INTB), | ||
IXP4XX_GPIO_IRQ(INTC), | ||
IXP4XX_GPIO_IRQ(INTD) | ||
}; | ||
|
||
if (slot >= 1 && slot <= MAX_DEV && pin >= 1 && pin <= IRQ_LINES) | ||
return pci_irq_table[(slot + pin - 2) % 4]; | ||
|
||
return -1; | ||
} | ||
|
||
struct hw_pci miccpt_pci __initdata = { | ||
.nr_controllers = 1, | ||
.preinit = miccpt_pci_preinit, | ||
.swizzle = pci_std_swizzle, | ||
.setup = ixp4xx_setup, | ||
.scan = ixp4xx_scan_bus, | ||
.map_irq = miccpt_map_irq, | ||
}; | ||
|
||
int __init miccpt_pci_init(void) | ||
{ | ||
if (machine_is_miccpt()) | ||
pci_common_init(&miccpt_pci); | ||
return 0; | ||
} | ||
|
||
subsys_initcall(miccpt_pci_init); |
Oops, something went wrong.