48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
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/*
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* linux/arch/arm/kernel/devtree.c
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*
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* Copyright (C) 2009 Canonical Ltd. <jeremy.kerr@canonical.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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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/bootmem.h>
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#include <linux/memblock.h>
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#include <linux/of.h>
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#include <linux/of_fdt.h>
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#include <linux/of_irq.h>
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#include <linux/of_platform.h>
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#include <asm/setup.h>
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#include <asm/page.h>
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void __init early_init_dt_add_memory_arch(u64 base, u64 size)
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{
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arm_add_memory(base, size);
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}
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void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
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{
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return alloc_bootmem_align(size, align);
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}
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/**
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* irq_create_of_mapping - Hook to resolve OF irq specifier into a Linux irq#
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*
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* Currently the mapping mechanism is trivial; simple flat hwirq numbers are
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* mapped 1:1 onto Linux irq numbers. Cascaded irq controllers are not
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* supported.
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*/
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unsigned int irq_create_of_mapping(struct device_node *controller,
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const u32 *intspec, unsigned int intsize)
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{
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return intspec[0];
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}
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EXPORT_SYMBOL_GPL(irq_create_of_mapping);
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