98d9f30c82
powerpc has two different ways of matching PCI devices to their corresponding OF node (if any) for historical reasons. The ppc64 one does a scan looking for matching bus/dev/fn, while the ppc32 one does a scan looking only for matching dev/fn on each level in order to be agnostic to busses being renumbered (which Linux does on some platforms). This removes both and instead moves the matching code to the PCI core itself. It's the most logical place to do it: when a pci_dev is created, we know the parent and thus can do a single level scan for the matching device_node (if any). The benefit is that all archs now get the matching for free. There's one hook the arch might want to provide to match a PHB bus to its device node. A default weak implementation is provided that looks for the parent device device node, but it's not entirely reliable on powerpc for various reasons so powerpc provides its own. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Michal Simek <monstr@monstr.eu> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
63 lines
1.8 KiB
C
63 lines
1.8 KiB
C
/*
|
|
* Definitions for talking to the Open Firmware PROM on
|
|
* Power Macintosh computers.
|
|
*
|
|
* Copyright (C) 1996-2005 Paul Mackerras.
|
|
*
|
|
* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
|
|
|
|
#ifndef _ASM_MICROBLAZE_PROM_H
|
|
#define _ASM_MICROBLAZE_PROM_H
|
|
#ifdef __KERNEL__
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/irq.h>
|
|
#include <asm/atomic.h>
|
|
|
|
#define HAVE_ARCH_DEVTREE_FIXUPS
|
|
|
|
/* Other Prototypes */
|
|
extern int early_uartlite_console(void);
|
|
extern int early_uart16550_console(void);
|
|
|
|
/*
|
|
* OF address retreival & translation
|
|
*/
|
|
|
|
#ifdef CONFIG_PCI
|
|
extern unsigned long pci_address_to_pio(phys_addr_t address);
|
|
#define pci_address_to_pio pci_address_to_pio
|
|
#endif /* CONFIG_PCI */
|
|
|
|
/* Parse the ibm,dma-window property of an OF node into the busno, phys and
|
|
* size parameters.
|
|
*/
|
|
void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
|
|
unsigned long *busno, unsigned long *phys, unsigned long *size);
|
|
|
|
extern void kdump_move_device_tree(void);
|
|
|
|
/* CPU OF node matching */
|
|
struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
#endif /* __KERNEL__ */
|
|
|
|
/* These includes are put at the bottom because they may contain things
|
|
* that are overridden by this file. Ideally they shouldn't be included
|
|
* by this file, but there are a bunch of .c files that currently depend
|
|
* on it. Eventually they will be cleaned up. */
|
|
#include <linux/of_fdt.h>
|
|
#include <linux/of_irq.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#endif /* _ASM_MICROBLAZE_PROM_H */
|