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of/mips: Add device tree support to MIPS

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Add the ability to enable CONFIG_OF on the MIPS architecture.

Signed-off-by: Dezhong Diao <dediao@cisco.com>
[grant.likely@secretlab.ca: cleared out obsolete hooks,
	removed ARCH_HAS_DEVTREE_MEM,
	remove __init tags from header file,
	removed debugfs support hunk]
[ddaney@linux-mips.org: backed out over aggressive trimming of hooks]
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Tested-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
This commit is contained in:
Dezhong Diao 2010-10-13 00:52:46 -06:00 • committed by Grant Likely
parent 32c97689c4
commit f2ffa5ab74
6 changed files with 163 additions and 0 deletions
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5
arch/mips/include/asm/irq.h
View file

@ -16,6 +16,11 @@
#include <irq.h>
static inline void irq_dispose_mapping(unsigned int virq)
{
return;
}
#ifdef CONFIG_I8259
static inline int irq_canonicalize(int irq)
{

35
arch/mips/include/asm/prom.h Normal file
View file

@ -0,0 +1,35 @@
/*
* arch/mips/include/asm/prom.h
*
* Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
*
* 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.
*
*/
#ifndef __ASM_MIPS_PROM_H
#define __ASM_MIPS_PROM_H
#ifdef CONFIG_OF
#include <linux/init.h>
#include <asm/setup.h>
#include <asm/irq.h>
#include <asm/bootinfo.h>
/* which is compatible with the flattened device tree (FDT) */
#define cmd_line arcs_cmdline
extern int early_init_dt_scan_memory_arch(unsigned long node,
const char *uname, int depth, void *data);
extern int reserve_mem_mach(unsigned long addr, unsigned long size);
extern void free_mem_mach(unsigned long addr, unsigned long size);
extern void __init device_tree_init(void);
#else /* CONFIG_OF */
static inline void __init device_tree_init(void) { }
#endif /* CONFIG_OF */
#endif /* _ASM_MIPS_PROM_H */