mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 20:23:57 +08:00
d5341942d7
Aside of the usual motivation for constification, this function has a history of being abused a hook for interrupt and other fixups so I turned this function const ages ago in the MIPS code but it should be done treewide. Due to function pointer passing in varous places a few other functions had to be constified as well. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> To: Anton Vorontsov <avorontsov@mvista.com> To: Chris Metcalf <cmetcalf@tilera.com> To: Colin Cross <ccross@android.com> Acked-by: "David S. Miller" <davem@davemloft.net> To: Eric Miao <eric.y.miao@gmail.com> To: Erik Gilling <konkers@android.com> Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> To: "H. Peter Anvin" <hpa@zytor.com> To: Imre Kaloz <kaloz@openwrt.org> To: Ingo Molnar <mingo@redhat.com> To: Ivan Kokshaysky <ink@jurassic.park.msu.ru> To: Jesse Barnes <jbarnes@virtuousgeek.org> To: Krzysztof Halasa <khc@pm.waw.pl> To: Lennert Buytenhek <kernel@wantstofly.org> To: Matt Turner <mattst88@gmail.com> To: Nicolas Pitre <nico@fluxnic.net> To: Olof Johansson <olof@lixom.net> Acked-by: Paul Mundt <lethal@linux-sh.org> To: Richard Henderson <rth@twiddle.net> To: Russell King <linux@arm.linux.org.uk> To: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-alpha@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linux-pci@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linux-tegra@vger.kernel.org Cc: sparclinux@vger.kernel.org Cc: x86@kernel.org Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/*
|
|
* arch/arm/mach-ixp4xx/nas100d-pci.c
|
|
*
|
|
* NAS 100d board-level PCI initialization
|
|
*
|
|
* based on ixdp425-pci.c:
|
|
* Copyright (C) 2002 Intel Corporation.
|
|
* Copyright (C) 2003-2004 MontaVista Software, Inc.
|
|
*
|
|
* Maintainer: http://www.nslu2-linux.org/
|
|
*
|
|
* 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>
|
|
|
|
#define MAX_DEV 3
|
|
#define IRQ_LINES 3
|
|
|
|
/* PCI controller GPIO to IRQ pin mappings */
|
|
#define INTA 11
|
|
#define INTB 10
|
|
#define INTC 9
|
|
#define INTD 8
|
|
#define INTE 7
|
|
|
|
void __init nas100d_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);
|
|
irq_set_irq_type(IXP4XX_GPIO_IRQ(INTE), IRQ_TYPE_LEVEL_LOW);
|
|
ixp4xx_pci_preinit();
|
|
}
|
|
|
|
static int __init nas100d_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
|
|
{
|
|
static int pci_irq_table[MAX_DEV][IRQ_LINES] = {
|
|
{ IXP4XX_GPIO_IRQ(INTA), -1, -1 },
|
|
{ IXP4XX_GPIO_IRQ(INTB), -1, -1 },
|
|
{ IXP4XX_GPIO_IRQ(INTC), IXP4XX_GPIO_IRQ(INTD),
|
|
IXP4XX_GPIO_IRQ(INTE) },
|
|
};
|
|
|
|
if (slot >= 1 && slot <= MAX_DEV && pin >= 1 && pin <= IRQ_LINES)
|
|
return pci_irq_table[slot - 1][pin - 1];
|
|
|
|
return -1;
|
|
}
|
|
|
|
struct hw_pci __initdata nas100d_pci = {
|
|
.nr_controllers = 1,
|
|
.preinit = nas100d_pci_preinit,
|
|
.swizzle = pci_std_swizzle,
|
|
.setup = ixp4xx_setup,
|
|
.scan = ixp4xx_scan_bus,
|
|
.map_irq = nas100d_map_irq,
|
|
};
|
|
|
|
int __init nas100d_pci_init(void)
|
|
{
|
|
if (machine_is_nas100d())
|
|
pci_common_init(&nas100d_pci);
|
|
|
|
return 0;
|
|
}
|
|
|
|
subsys_initcall(nas100d_pci_init);
|