Release 4.17 arch/arm/mach-ixp4xx/vulcan-pci.c
/*
* arch/arch/mach-ixp4xx/vulcan-pci.c
*
* Vulcan board-level PCI initialization
*
* Copyright (C) 2010 Marc Zyngier <maz@misterjones.org>
*
* based on ixdp425-pci.c:
* Copyright (C) 2002 Intel Corporation.
* Copyright (C) 2003-2004 MontaVista Software, Inc.
*
* 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/pci.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <asm/mach/pci.h>
#include <asm/mach-types.h>
/* PCI controller GPIO to IRQ pin mappings */
#define INTA 2
#define INTB 3
void __init vulcan_pci_preinit(void)
{
#ifndef CONFIG_IXP4XX_INDIRECT_PCI
/*
* Cardbus bridge wants way more than the SoC can actually offer,
* and leaves the whole PCI bus in a mess. Artificially limit it
* to 8MB per region. Of course indirect mode doesn't have this
* limitation...
*/
pci_cardbus_mem_size = SZ_8M;
pr_info("Vulcan PCI: limiting CardBus memory size to %dMB\n",
(int)(pci_cardbus_mem_size >> 20));
#endif
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTA), IRQ_TYPE_LEVEL_LOW);
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTB), IRQ_TYPE_LEVEL_LOW);
ixp4xx_pci_preinit();
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marc Zyngier | 53 | 96.36% | 1 | 50.00% |
| Thomas Gleixner | 2 | 3.64% | 1 | 50.00% |
| Total | 55 | 100.00% | 2 | 100.00% |
static int __init vulcan_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
{
if (slot == 1)
return IXP4XX_GPIO_IRQ(INTA);
if (slot == 2)
return IXP4XX_GPIO_IRQ(INTB);
return -1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marc Zyngier | 46 | 97.87% | 1 | 50.00% |
| Ralf Bächle | 1 | 2.13% | 1 | 50.00% |
| Total | 47 | 100.00% | 2 | 100.00% |
struct hw_pci vulcan_pci __initdata = {
.nr_controllers = 1,
.ops = &ixp4xx_ops,
.preinit = vulcan_pci_preinit,
.setup = ixp4xx_setup,
.map_irq = vulcan_map_irq,
};
int __init vulcan_pci_init(void)
{
if (machine_is_arcom_vulcan())
pci_common_init(&vulcan_pci);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marc Zyngier | 22 | 100.00% | 1 | 100.00% |
| Total | 22 | 100.00% | 1 | 100.00% |
subsys_initcall(vulcan_pci_init);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Marc Zyngier | 178 | 95.19% | 1 | 25.00% |
| Russell King | 6 | 3.21% | 1 | 25.00% |
| Thomas Gleixner | 2 | 1.07% | 1 | 25.00% |
| Ralf Bächle | 1 | 0.53% | 1 | 25.00% |
| Total | 187 | 100.00% | 4 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.