Merge branch 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6
* 'next-devicetree' of git://git.secretlab.ca/git/linux-2.6: of: merge of_find_all_nodes() implementations of: merge other miscellaneous prototypes of: merge of_*_flat_dt*() functions of: merge of_node_get(), of_node_put() and of_find_all_nodes() of: merge of_read_number() an of_read_ulong() of: merge of_node_*_flag() and set_node_proc_entry() of: merge struct boot_param_header from Microblaze and PowerPC of: add common header for flattened device tree representation of: Move OF_IS_DYNAMIC and OF_MARK_DYNAMIC macros to of.h of: merge struct device_node of: merge phandle, ihandle and struct property of: Rework linux/of.h and asm/prom.h include ordering
This commit is contained in:
Linus Torvalds
commit
3ad1f3b35e
9 changed files with 221 additions and 379 deletions
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@ -12,23 +12,15 @@
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
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#ifndef _ASM_MICROBLAZE_PROM_H
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#define _ASM_MICROBLAZE_PROM_H
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#ifdef __KERNEL__
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/* Definitions used by the flattened device tree */
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#define OF_DT_HEADER 0xd00dfeed /* marker */
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#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
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#define OF_DT_END_NODE 0x2 /* End node */
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#define OF_DT_PROP 0x3 /* Property: name off, size, content */
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#define OF_DT_NOP 0x4 /* nop */
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#define OF_DT_END 0x9
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#define OF_DT_VERSION 0x10
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#include <linux/of_fdt.h>
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#include <linux/proc_fs.h>
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#include <linux/platform_device.h>
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#include <asm/irq.h>
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@ -41,122 +33,19 @@
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#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
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#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
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/*
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* This is what gets passed to the kernel by prom_init or kexec
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*
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* The dt struct contains the device tree structure, full pathes and
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* property contents. The dt strings contain a separate block with just
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* the strings for the property names, and is fully page aligned and
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* self contained in a page, so that it can be kept around by the kernel,
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* each property name appears only once in this page (cheap compression)
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*
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* the mem_rsvmap contains a map of reserved ranges of physical memory,
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* passing it here instead of in the device-tree itself greatly simplifies
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* the job of everybody. It's just a list of u64 pairs (base/size) that
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* ends when size is 0
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*/
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struct boot_param_header {
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u32 magic; /* magic word OF_DT_HEADER */
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u32 totalsize; /* total size of DT block */
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u32 off_dt_struct; /* offset to structure */
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u32 off_dt_strings; /* offset to strings */
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u32 off_mem_rsvmap; /* offset to memory reserve map */
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u32 version; /* format version */
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u32 last_comp_version; /* last compatible version */
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/* version 2 fields below */
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u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
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/* version 3 fields below */
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u32 dt_strings_size; /* size of the DT strings block */
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/* version 17 fields below */
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u32 dt_struct_size; /* size of the DT structure block */
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};
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typedef u32 phandle;
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typedef u32 ihandle;
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struct property {
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char *name;
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int length;
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void *value;
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struct property *next;
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};
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struct device_node {
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const char *name;
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const char *type;
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phandle node;
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phandle linux_phandle;
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char *full_name;
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struct property *properties;
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struct property *deadprops; /* removed properties */
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struct device_node *parent;
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struct device_node *child;
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struct device_node *sibling;
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struct device_node *next; /* next device of same type */
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struct device_node *allnext; /* next in list of all nodes */
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struct proc_dir_entry *pde; /* this node's proc directory */
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struct kref kref;
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unsigned long _flags;
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void *data;
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};
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extern struct device_node *of_chosen;
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static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
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{
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return test_bit(flag, &n->_flags);
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}
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static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
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{
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set_bit(flag, &n->_flags);
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}
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#define HAVE_ARCH_DEVTREE_FIXUPS
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static inline void set_node_proc_entry(struct device_node *dn,
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struct proc_dir_entry *de)
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{
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dn->pde = de;
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}
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extern struct device_node *allnodes; /* temporary while merging */
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extern rwlock_t devtree_lock; /* temporary while merging */
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extern struct device_node *of_find_all_nodes(struct device_node *prev);
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extern struct device_node *of_node_get(struct device_node *node);
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extern void of_node_put(struct device_node *node);
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/* For scanning the flat device-tree at boot time */
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extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
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const char *uname, int depth,
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void *data),
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void *data);
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extern void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
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unsigned long *size);
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extern int __init
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of_flat_dt_is_compatible(unsigned long node, const char *name);
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extern unsigned long __init of_get_flat_dt_root(void);
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/* For updating the device tree at runtime */
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extern void of_attach_node(struct device_node *);
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extern void of_detach_node(struct device_node *);
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/* Other Prototypes */
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extern void finish_device_tree(void);
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extern void unflatten_device_tree(void);
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extern int early_uartlite_console(void);
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extern void early_init_devtree(void *);
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extern int machine_is_compatible(const char *compat);
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extern void print_properties(struct device_node *node);
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extern int prom_n_intr_cells(struct device_node *np);
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extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
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extern int prom_add_property(struct device_node *np, struct property *prop);
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extern int prom_remove_property(struct device_node *np, struct property *prop);
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extern int prom_update_property(struct device_node *np,
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struct property *newprop,
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struct property *oldprop);
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extern struct resource *request_OF_resource(struct device_node *node,
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int index, const char *name_postfix);
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@ -166,18 +55,6 @@ extern int release_OF_resource(struct device_node *node, int index);
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* OF address retreival & translation
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*/
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/* Helper to read a big number; size is in cells (not bytes) */
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static inline u64 of_read_number(const u32 *cell, int size)
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{
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u64 r = 0;
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while (size--)
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r = (r << 32) | *(cell++);
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return r;
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}
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/* Like of_read_number, but we want an unsigned long result */
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#define of_read_ulong(cell, size) of_read_number(cell, size)
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/* Translate an OF address block into a CPU physical address
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*/
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extern u64 of_translate_address(struct device_node *np, const u32 *addr);
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@ -305,12 +182,6 @@ extern int of_irq_to_resource(struct device_node *dev, int index,
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*/
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extern void __iomem *of_iomap(struct device_node *device, int index);
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/*
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* NB: This is here while we transition from using asm/prom.h
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* to linux/of.h
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*/
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#include <linux/of.h>
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#endif /* __ASSEMBLY__ */
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#endif /* __KERNEL__ */
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#endif /* _ASM_MICROBLAZE_PROM_H */
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@ -31,7 +31,7 @@
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#include <linux/linkage.h>
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#include <asm/thread_info.h>
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#include <asm/page.h>
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#include <asm/prom.h> /* for OF_DT_HEADER */
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#include <linux/of_fdt.h> /* for OF_DT_HEADER */
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#ifdef CONFIG_MMU
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#include <asm/setup.h> /* COMMAND_LINE_SIZE */
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@ -859,29 +859,6 @@ struct device_node *of_find_node_by_phandle(phandle handle)
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}
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EXPORT_SYMBOL(of_find_node_by_phandle);
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/**
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* of_find_all_nodes - Get next node in global list
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* @prev: Previous node or NULL to start iteration
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* of_node_put() will be called on it
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*
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* Returns a node pointer with refcount incremented, use
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* of_node_put() on it when done.
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*/
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struct device_node *of_find_all_nodes(struct device_node *prev)
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{
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struct device_node *np;
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read_lock(&devtree_lock);
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np = prev ? prev->allnext : allnodes;
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for (; np != NULL; np = np->allnext)
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if (of_node_get(np))
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break;
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of_node_put(prev);
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read_unlock(&devtree_lock);
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return np;
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}
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EXPORT_SYMBOL(of_find_all_nodes);
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/**
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* of_node_get - Increment refcount of a node
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* @node: Node to inc refcount, NULL is supported to
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@ -1,3 +1,4 @@
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#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
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#ifndef _POWERPC_PROM_H
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#define _POWERPC_PROM_H
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#ifdef __KERNEL__
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@ -16,6 +17,7 @@
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* 2 of the License, or (at your option) any later version.
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*/
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#include <linux/types.h>
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#include <linux/of_fdt.h>
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#include <linux/proc_fs.h>
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#include <linux/platform_device.h>
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#include <asm/irq.h>
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@ -28,133 +30,14 @@
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#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
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#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))
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/* Definitions used by the flattened device tree */
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#define OF_DT_HEADER 0xd00dfeed /* marker */
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#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
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#define OF_DT_END_NODE 0x2 /* End node */
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#define OF_DT_PROP 0x3 /* Property: name off, size,
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* content */
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#define OF_DT_NOP 0x4 /* nop */
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#define OF_DT_END 0x9
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#define OF_DT_VERSION 0x10
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/*
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* This is what gets passed to the kernel by prom_init or kexec
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*
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* The dt struct contains the device tree structure, full pathes and
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* property contents. The dt strings contain a separate block with just
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* the strings for the property names, and is fully page aligned and
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* self contained in a page, so that it can be kept around by the kernel,
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* each property name appears only once in this page (cheap compression)
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*
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* the mem_rsvmap contains a map of reserved ranges of physical memory,
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* passing it here instead of in the device-tree itself greatly simplifies
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* the job of everybody. It's just a list of u64 pairs (base/size) that
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* ends when size is 0
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*/
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struct boot_param_header
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{
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u32 magic; /* magic word OF_DT_HEADER */
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u32 totalsize; /* total size of DT block */
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u32 off_dt_struct; /* offset to structure */
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u32 off_dt_strings; /* offset to strings */
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u32 off_mem_rsvmap; /* offset to memory reserve map */
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u32 version; /* format version */
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u32 last_comp_version; /* last compatible version */
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/* version 2 fields below */
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u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
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/* version 3 fields below */
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u32 dt_strings_size; /* size of the DT strings block */
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/* version 17 fields below */
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u32 dt_struct_size; /* size of the DT structure block */
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};
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typedef u32 phandle;
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typedef u32 ihandle;
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struct property {
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char *name;
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int length;
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void *value;
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struct property *next;
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};
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struct device_node {
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const char *name;
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const char *type;
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phandle node;
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phandle linux_phandle;
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char *full_name;
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struct property *properties;
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struct property *deadprops; /* removed properties */
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struct device_node *parent;
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struct device_node *child;
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struct device_node *sibling;
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struct device_node *next; /* next device of same type */
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struct device_node *allnext; /* next in list of all nodes */
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struct proc_dir_entry *pde; /* this node's proc directory */
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struct kref kref;
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unsigned long _flags;
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void *data;
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};
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extern struct device_node *of_chosen;
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static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
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{
|
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return test_bit(flag, &n->_flags);
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}
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|
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static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
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{
|
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set_bit(flag, &n->_flags);
|
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}
|
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|
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|
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#define HAVE_ARCH_DEVTREE_FIXUPS
|
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|
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static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
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{
|
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dn->pde = de;
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}
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|
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|
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extern struct device_node *of_find_all_nodes(struct device_node *prev);
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extern struct device_node *of_node_get(struct device_node *node);
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extern void of_node_put(struct device_node *node);
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|
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/* For scanning the flat device-tree at boot time */
|
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extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
|
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const char *uname, int depth,
|
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void *data),
|
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void *data);
|
||||
extern void* __init of_get_flat_dt_prop(unsigned long node, const char *name,
|
||||
unsigned long *size);
|
||||
extern int __init of_flat_dt_is_compatible(unsigned long node, const char *name);
|
||||
extern unsigned long __init of_get_flat_dt_root(void);
|
||||
|
||||
/* For updating the device tree at runtime */
|
||||
extern void of_attach_node(struct device_node *);
|
||||
extern void of_detach_node(struct device_node *);
|
||||
|
||||
/* Other Prototypes */
|
||||
extern void finish_device_tree(void);
|
||||
extern void unflatten_device_tree(void);
|
||||
extern void early_init_devtree(void *);
|
||||
extern int machine_is_compatible(const char *compat);
|
||||
extern void print_properties(struct device_node *node);
|
||||
extern int prom_n_intr_cells(struct device_node* np);
|
||||
extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
|
||||
extern int prom_add_property(struct device_node* np, struct property* prop);
|
||||
extern int prom_remove_property(struct device_node *np, struct property *prop);
|
||||
extern int prom_update_property(struct device_node *np,
|
||||
struct property *newprop,
|
||||
struct property *oldprop);
|
||||
|
||||
#ifdef CONFIG_PPC32
|
||||
/*
|
||||
* PCI <-> OF matching functions
|
||||
|
|
@ -178,26 +61,6 @@ extern int release_OF_resource(struct device_node* node, int index);
|
|||
* OF address retreival & translation
|
||||
*/
|
||||
|
||||
|
||||
/* Helper to read a big number; size is in cells (not bytes) */
|
||||
static inline u64 of_read_number(const u32 *cell, int size)
|
||||
{
|
||||
u64 r = 0;
|
||||
while (size--)
|
||||
r = (r << 32) | *(cell++);
|
||||
return r;
|
||||
}
|
||||
|
||||
/* Like of_read_number, but we want an unsigned long result */
|
||||
#ifdef CONFIG_PPC32
|
||||
static inline unsigned long of_read_ulong(const u32 *cell, int size)
|
||||
{
|
||||
return cell[size-1];
|
||||
}
|
||||
#else
|
||||
#define of_read_ulong(cell, size) of_read_number(cell, size)
|
||||
#endif
|
||||
|
||||
/* Translate an OF address block into a CPU physical address
|
||||
*/
|
||||
extern u64 of_translate_address(struct device_node *np, const u32 *addr);
|
||||
|
|
@ -349,11 +212,5 @@ extern int of_irq_to_resource(struct device_node *dev, int index,
|
|||
*/
|
||||
extern void __iomem *of_iomap(struct device_node *device, int index);
|
||||
|
||||
/*
|
||||
* NB: This is here while we transition from using asm/prom.h
|
||||
* to linux/of.h
|
||||
*/
|
||||
#include <linux/of.h>
|
||||
|
||||
#endif /* __KERNEL__ */
|
||||
#endif /* _POWERPC_PROM_H */
|
||||
|
|
|
|||
|
|
@ -1316,29 +1316,6 @@ struct device_node *of_find_next_cache_node(struct device_node *np)
|
|||
return NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* of_find_all_nodes - Get next node in global list
|
||||
* @prev: Previous node or NULL to start iteration
|
||||
* of_node_put() will be called on it
|
||||
*
|
||||
* Returns a node pointer with refcount incremented, use
|
||||
* of_node_put() on it when done.
|
||||
*/
|
||||
struct device_node *of_find_all_nodes(struct device_node *prev)
|
||||
{
|
||||
struct device_node *np;
|
||||
|
||||
read_lock(&devtree_lock);
|
||||
np = prev ? prev->allnext : allnodes;
|
||||
for (; np != 0; np = np->allnext)
|
||||
if (of_node_get(np))
|
||||
break;
|
||||
of_node_put(prev);
|
||||
read_unlock(&devtree_lock);
|
||||
return np;
|
||||
}
|
||||
EXPORT_SYMBOL(of_find_all_nodes);
|
||||
|
||||
/**
|
||||
* of_node_get - Increment refcount of a node
|
||||
* @node: Node to inc refcount, NULL is supported to
|
||||
|
|
|
|||
|
|
@ -1,3 +1,4 @@
|
|||
#include <linux/of.h> /* linux/of.h gets to determine #include ordering */
|
||||
#ifndef _SPARC_PROM_H
|
||||
#define _SPARC_PROM_H
|
||||
#ifdef __KERNEL__
|
||||
|
|
@ -28,50 +29,11 @@
|
|||
#define of_prop_cmp(s1, s2) strcasecmp((s1), (s2))
|
||||
#define of_node_cmp(s1, s2) strcmp((s1), (s2))
|
||||
|
||||
typedef u32 phandle;
|
||||
typedef u32 ihandle;
|
||||
|
||||
struct property {
|
||||
char *name;
|
||||
int length;
|
||||
void *value;
|
||||
struct property *next;
|
||||
unsigned long _flags;
|
||||
unsigned int unique_id;
|
||||
};
|
||||
|
||||
struct of_irq_controller;
|
||||
struct device_node {
|
||||
const char *name;
|
||||
const char *type;
|
||||
phandle node;
|
||||
char *path_component_name;
|
||||
char *full_name;
|
||||
|
||||
struct property *properties;
|
||||
struct property *deadprops; /* removed properties */
|
||||
struct device_node *parent;
|
||||
struct device_node *child;
|
||||
struct device_node *sibling;
|
||||
struct device_node *next; /* next device of same type */
|
||||
struct device_node *allnext; /* next in list of all nodes */
|
||||
struct proc_dir_entry *pde; /* this node's proc directory */
|
||||
struct kref kref;
|
||||
unsigned long _flags;
|
||||
void *data;
|
||||
unsigned int unique_id;
|
||||
|
||||
struct of_irq_controller *irq_trans;
|
||||
};
|
||||
|
||||
struct of_irq_controller {
|
||||
unsigned int (*irq_build)(struct device_node *, unsigned int, void *);
|
||||
void *data;
|
||||
};
|
||||
|
||||
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
|
||||
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
|
||||
|
||||
extern struct device_node *of_find_node_by_cpuid(int cpuid);
|
||||
extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
|
||||
extern struct mutex of_set_property_mutex;
|
||||
|
|
@ -89,15 +51,6 @@ extern void prom_build_devicetree(void);
|
|||
extern void of_populate_present_mask(void);
|
||||
extern void of_fill_in_cpu_data(void);
|
||||
|
||||
/* Dummy ref counting routines - to be implemented later */
|
||||
static inline struct device_node *of_node_get(struct device_node *node)
|
||||
{
|
||||
return node;
|
||||
}
|
||||
static inline void of_node_put(struct device_node *node)
|
||||
{
|
||||
}
|
||||
|
||||
/* These routines are here to provide compatibility with how powerpc
|
||||
* handles IRQ mapping for OF device nodes. We precompute and permanently
|
||||
* register them in the of_device objects, whereas powerpc computes them
|
||||
|
|
@ -108,12 +61,6 @@ static inline void irq_dispose_mapping(unsigned int virq)
|
|||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* NB: This is here while we transition from using asm/prom.h
|
||||
* to linux/of.h
|
||||
*/
|
||||
#include <linux/of.h>
|
||||
|
||||
extern struct device_node *of_console_device;
|
||||
extern char *of_console_path;
|
||||
extern char *of_console_options;
|
||||
|
|
|
|||
|
|
@ -9,7 +9,8 @@
|
|||
*
|
||||
* Adapted for sparc and sparc64 by David S. Miller davem@davemloft.net
|
||||
*
|
||||
* Reconsolidated from arch/x/kernel/prom.c by Stephen Rothwell.
|
||||
* Reconsolidated from arch/x/kernel/prom.c by Stephen Rothwell and
|
||||
* Grant Likely.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
|
|
@ -82,6 +83,29 @@ struct property *of_find_property(const struct device_node *np,
|
|||
}
|
||||
EXPORT_SYMBOL(of_find_property);
|
||||
|
||||
/**
|
||||
* of_find_all_nodes - Get next node in global list
|
||||
* @prev: Previous node or NULL to start iteration
|
||||
* of_node_put() will be called on it
|
||||
*
|
||||
* Returns a node pointer with refcount incremented, use
|
||||
* of_node_put() on it when done.
|
||||
*/
|
||||
struct device_node *of_find_all_nodes(struct device_node *prev)
|
||||
{
|
||||
struct device_node *np;
|
||||
|
||||
read_lock(&devtree_lock);
|
||||
np = prev ? prev->allnext : allnodes;
|
||||
for (; np != NULL; np = np->allnext)
|
||||
if (of_node_get(np))
|
||||
break;
|
||||
of_node_put(prev);
|
||||
read_unlock(&devtree_lock);
|
||||
return np;
|
||||
}
|
||||
EXPORT_SYMBOL(of_find_all_nodes);
|
||||
|
||||
/*
|
||||
* Find a property with a given name for a given node
|
||||
* and return the value.
|
||||
|
|
|
|||
|
|
@ -17,14 +17,117 @@
|
|||
*/
|
||||
#include <linux/types.h>
|
||||
#include <linux/bitops.h>
|
||||
#include <linux/kref.h>
|
||||
#include <linux/mod_devicetable.h>
|
||||
|
||||
typedef u32 phandle;
|
||||
typedef u32 ihandle;
|
||||
|
||||
struct property {
|
||||
char *name;
|
||||
int length;
|
||||
void *value;
|
||||
struct property *next;
|
||||
unsigned long _flags;
|
||||
unsigned int unique_id;
|
||||
};
|
||||
|
||||
#if defined(CONFIG_SPARC)
|
||||
struct of_irq_controller;
|
||||
#endif
|
||||
|
||||
struct device_node {
|
||||
const char *name;
|
||||
const char *type;
|
||||
phandle node;
|
||||
#if !defined(CONFIG_SPARC)
|
||||
phandle linux_phandle;
|
||||
#endif
|
||||
char *full_name;
|
||||
|
||||
struct property *properties;
|
||||
struct property *deadprops; /* removed properties */
|
||||
struct device_node *parent;
|
||||
struct device_node *child;
|
||||
struct device_node *sibling;
|
||||
struct device_node *next; /* next device of same type */
|
||||
struct device_node *allnext; /* next in list of all nodes */
|
||||
struct proc_dir_entry *pde; /* this node's proc directory */
|
||||
struct kref kref;
|
||||
unsigned long _flags;
|
||||
void *data;
|
||||
#if defined(CONFIG_SPARC)
|
||||
char *path_component_name;
|
||||
unsigned int unique_id;
|
||||
struct of_irq_controller *irq_trans;
|
||||
#endif
|
||||
};
|
||||
|
||||
static inline int of_node_check_flag(struct device_node *n, unsigned long flag)
|
||||
{
|
||||
return test_bit(flag, &n->_flags);
|
||||
}
|
||||
|
||||
static inline void of_node_set_flag(struct device_node *n, unsigned long flag)
|
||||
{
|
||||
set_bit(flag, &n->_flags);
|
||||
}
|
||||
|
||||
static inline void
|
||||
set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
|
||||
{
|
||||
dn->pde = de;
|
||||
}
|
||||
|
||||
extern struct device_node *of_find_all_nodes(struct device_node *prev);
|
||||
|
||||
#if defined(CONFIG_SPARC)
|
||||
/* Dummy ref counting routines - to be implemented later */
|
||||
static inline struct device_node *of_node_get(struct device_node *node)
|
||||
{
|
||||
return node;
|
||||
}
|
||||
static inline void of_node_put(struct device_node *node)
|
||||
{
|
||||
}
|
||||
|
||||
#else
|
||||
extern struct device_node *of_node_get(struct device_node *node);
|
||||
extern void of_node_put(struct device_node *node);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* OF address retreival & translation
|
||||
*/
|
||||
|
||||
/* Helper to read a big number; size is in cells (not bytes) */
|
||||
static inline u64 of_read_number(const u32 *cell, int size)
|
||||
{
|
||||
u64 r = 0;
|
||||
while (size--)
|
||||
r = (r << 32) | *(cell++);
|
||||
return r;
|
||||
}
|
||||
|
||||
/* Like of_read_number, but we want an unsigned long result */
|
||||
#ifdef CONFIG_PPC32
|
||||
static inline unsigned long of_read_ulong(const u32 *cell, int size)
|
||||
{
|
||||
return cell[size-1];
|
||||
}
|
||||
#else
|
||||
#define of_read_ulong(cell, size) of_read_number(cell, size)
|
||||
#endif
|
||||
|
||||
#include <asm/prom.h>
|
||||
|
||||
/* flag descriptions */
|
||||
#define OF_DYNAMIC 1 /* node and properties were allocated via kmalloc */
|
||||
#define OF_DETACHED 2 /* node has been detached from the device tree */
|
||||
|
||||
#define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
|
||||
#define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
|
||||
|
||||
#define OF_BAD_ADDR ((u64)-1)
|
||||
|
||||
extern struct device_node *of_find_node_by_name(struct device_node *from,
|
||||
|
|
|
|||
86
include/linux/of_fdt.h
Normal file
86
include/linux/of_fdt.h
Normal file
|
|
@ -0,0 +1,86 @@
|
|||
/*
|
||||
* Definitions for working with the Flattened Device Tree data format
|
||||
*
|
||||
* Copyright 2009 Benjamin Herrenschmidt, IBM Corp
|
||||
* benh@kernel.crashing.org
|
||||
*
|
||||
* 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 _LINUX_OF_FDT_H
|
||||
#define _LINUX_OF_FDT_H
|
||||
|
||||
#include <linux/types.h>
|
||||
#include <linux/init.h>
|
||||
|
||||
/* Definitions used by the flattened device tree */
|
||||
#define OF_DT_HEADER 0xd00dfeed /* marker */
|
||||
#define OF_DT_BEGIN_NODE 0x1 /* Start of node, full name */
|
||||
#define OF_DT_END_NODE 0x2 /* End node */
|
||||
#define OF_DT_PROP 0x3 /* Property: name off, size,
|
||||
* content */
|
||||
#define OF_DT_NOP 0x4 /* nop */
|
||||
#define OF_DT_END 0x9
|
||||
|
||||
#define OF_DT_VERSION 0x10
|
||||
|
||||
#ifndef __ASSEMBLY__
|
||||
/*
|
||||
* This is what gets passed to the kernel by prom_init or kexec
|
||||
*
|
||||
* The dt struct contains the device tree structure, full pathes and
|
||||
* property contents. The dt strings contain a separate block with just
|
||||
* the strings for the property names, and is fully page aligned and
|
||||
* self contained in a page, so that it can be kept around by the kernel,
|
||||
* each property name appears only once in this page (cheap compression)
|
||||
*
|
||||
* the mem_rsvmap contains a map of reserved ranges of physical memory,
|
||||
* passing it here instead of in the device-tree itself greatly simplifies
|
||||
* the job of everybody. It's just a list of u64 pairs (base/size) that
|
||||
* ends when size is 0
|
||||
*/
|
||||
struct boot_param_header {
|
||||
u32 magic; /* magic word OF_DT_HEADER */
|
||||
u32 totalsize; /* total size of DT block */
|
||||
u32 off_dt_struct; /* offset to structure */
|
||||
u32 off_dt_strings; /* offset to strings */
|
||||
u32 off_mem_rsvmap; /* offset to memory reserve map */
|
||||
u32 version; /* format version */
|
||||
u32 last_comp_version; /* last compatible version */
|
||||
/* version 2 fields below */
|
||||
u32 boot_cpuid_phys; /* Physical CPU id we're booting on */
|
||||
/* version 3 fields below */
|
||||
u32 dt_strings_size; /* size of the DT strings block */
|
||||
/* version 17 fields below */
|
||||
u32 dt_struct_size; /* size of the DT structure block */
|
||||
};
|
||||
|
||||
/* For scanning the flat device-tree at boot time */
|
||||
extern int __init of_scan_flat_dt(int (*it)(unsigned long node,
|
||||
const char *uname, int depth,
|
||||
void *data),
|
||||
void *data);
|
||||
extern void __init *of_get_flat_dt_prop(unsigned long node, const char *name,
|
||||
unsigned long *size);
|
||||
extern int __init of_flat_dt_is_compatible(unsigned long node,
|
||||
const char *name);
|
||||
extern unsigned long __init of_get_flat_dt_root(void);
|
||||
|
||||
/* Other Prototypes */
|
||||
extern void finish_device_tree(void);
|
||||
extern void unflatten_device_tree(void);
|
||||
extern void early_init_devtree(void *);
|
||||
extern int machine_is_compatible(const char *compat);
|
||||
extern void print_properties(struct device_node *node);
|
||||
extern int prom_n_intr_cells(struct device_node* np);
|
||||
extern void prom_get_irq_senses(unsigned char *senses, int off, int max);
|
||||
extern int prom_add_property(struct device_node* np, struct property* prop);
|
||||
extern int prom_remove_property(struct device_node *np, struct property *prop);
|
||||
extern int prom_update_property(struct device_node *np,
|
||||
struct property *newprop,
|
||||
struct property *oldprop);
|
||||
|
||||
#endif /* __ASSEMBLY__ */
|
||||
#endif /* _LINUX_OF_FDT_H */
|
||||
Loading…
Reference in a new issue