| Grant Likely | 9eb8f67 | 2011-04-28 14:27:20 -0600 | [diff] [blame^] | 1 | /* |
| 2 | * linux/arch/arm/kernel/devtree.c |
| 3 | * |
| 4 | * Copyright (C) 2009 Canonical Ltd. <jeremy.kerr@canonical.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #include <linux/init.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/errno.h> |
| 14 | #include <linux/types.h> |
| 15 | #include <linux/bootmem.h> |
| 16 | #include <linux/memblock.h> |
| 17 | #include <linux/of.h> |
| 18 | #include <linux/of_fdt.h> |
| 19 | #include <linux/of_irq.h> |
| 20 | #include <linux/of_platform.h> |
| 21 | |
| 22 | #include <asm/setup.h> |
| 23 | #include <asm/page.h> |
| 24 | |
| 25 | void __init early_init_dt_add_memory_arch(u64 base, u64 size) |
| 26 | { |
| 27 | arm_add_memory(base, size); |
| 28 | } |
| 29 | |
| 30 | void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) |
| 31 | { |
| 32 | return alloc_bootmem_align(size, align); |
| 33 | } |
| 34 | |
| 35 | /** |
| 36 | * irq_create_of_mapping - Hook to resolve OF irq specifier into a Linux irq# |
| 37 | * |
| 38 | * Currently the mapping mechanism is trivial; simple flat hwirq numbers are |
| 39 | * mapped 1:1 onto Linux irq numbers. Cascaded irq controllers are not |
| 40 | * supported. |
| 41 | */ |
| 42 | unsigned int irq_create_of_mapping(struct device_node *controller, |
| 43 | const u32 *intspec, unsigned int intsize) |
| 44 | { |
| 45 | return intspec[0]; |
| 46 | } |
| 47 | EXPORT_SYMBOL_GPL(irq_create_of_mapping); |