7d6168e576
Add __dt_setup_arch() that can be called to load a builtin DT. Additionally we add a macro to allow loading a specific symbol from the __dtb_* section. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3715/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
54 lines
1.3 KiB
C
54 lines
1.3 KiB
C
/*
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* arch/mips/include/asm/prom.h
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*
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* Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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#ifndef __ASM_PROM_H
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#define __ASM_PROM_H
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#ifdef CONFIG_OF
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#include <linux/bug.h>
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#include <linux/io.h>
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#include <linux/types.h>
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#include <asm/bootinfo.h>
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extern int early_init_dt_scan_memory_arch(unsigned long node,
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const char *uname, int depth, void *data);
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extern int reserve_mem_mach(unsigned long addr, unsigned long size);
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extern void free_mem_mach(unsigned long addr, unsigned long size);
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extern void device_tree_init(void);
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static inline unsigned long pci_address_to_pio(phys_addr_t address)
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{
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/*
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* The ioport address can be directly used by inX() / outX()
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*/
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BUG_ON(address > IO_SPACE_LIMIT);
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return (unsigned long) address;
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}
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#define pci_address_to_pio pci_address_to_pio
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struct boot_param_header;
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extern void __dt_setup_arch(struct boot_param_header *bph);
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#define dt_setup_arch(sym) \
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({ \
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extern struct boot_param_header __dtb_##sym##_begin; \
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\
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__dt_setup_arch(&__dtb_##sym##_begin); \
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})
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#else /* CONFIG_OF */
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static inline void device_tree_init(void) { }
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#endif /* CONFIG_OF */
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#endif /* __ASM_PROM_H */
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