arch/microblaze/include/asm/prom.h - maze/linux - Git at Google

 /*
  * Definitions for talking to the Open Firmware PROM on
  * Power Macintosh computers.
  *
  * Copyright (C) 1996-2005 Paul Mackerras.
  *
  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */

 #include <linux/of.h>	/* linux/of.h gets to determine #include ordering */

 #ifndef _ASM_MICROBLAZE_PROM_H
 #define _ASM_MICROBLAZE_PROM_H
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__

 #include <linux/types.h>
 #include <linux/of_fdt.h>
 #include <linux/proc_fs.h>
 #include <linux/platform_device.h>
 #include <asm/irq.h>
 #include <asm/atomic.h>

 #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT	1
 #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT	1

 #define of_compat_cmp(s1, s2, l)	strncasecmp((s1), (s2), (l))
 #define of_prop_cmp(s1, s2)		strcmp((s1), (s2))
 #define of_node_cmp(s1, s2)		strcasecmp((s1), (s2))

 extern struct device_node *of_chosen;

 #define HAVE_ARCH_DEVTREE_FIXUPS

 extern rwlock_t devtree_lock;	/* temporary while merging */

 /* 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 int early_uartlite_console(void);

 extern struct resource *request_OF_resource(struct device_node *node,
 				int index, const char *name_postfix);
 extern int release_OF_resource(struct device_node *node, int index);

 /*
  * OF address retreival & translation
  */

 /* Translate an OF address block into a CPU physical address
  */
 extern u64 of_translate_address(struct device_node *np, const u32 *addr);

 /* Extract an address from a device, returns the region size and
  * the address space flags too. The PCI version uses a BAR number
  * instead of an absolute index
  */
 extern const u32 *of_get_address(struct device_node *dev, int index,
 			u64 *size, unsigned int *flags);
 extern const u32 *of_get_pci_address(struct device_node *dev, int bar_no,
 			u64 *size, unsigned int *flags);

 /* Get an address as a resource. Note that if your address is
  * a PIO address, the conversion will fail if the physical address
  * can't be internally converted to an IO token with
  * pci_address_to_pio(), that is because it's either called to early
  * or it can't be matched to any host bridge IO space
  */
 extern int of_address_to_resource(struct device_node *dev, int index,
 				struct resource *r);
 extern int of_pci_address_to_resource(struct device_node *dev, int bar,
 				struct resource *r);

 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
 void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 		unsigned long *busno, unsigned long *phys, unsigned long *size);

 extern void kdump_move_device_tree(void);

 /* CPU OF node matching */
 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);

 /* Get the MAC address */
 extern const void *of_get_mac_address(struct device_node *np);

 /*
  * OF interrupt mapping
  */

 /* This structure is returned when an interrupt is mapped. The controller
  * field needs to be put() after use
  */

 #define OF_MAX_IRQ_SPEC		4 /* We handle specifiers of at most 4 cells */

 struct of_irq {
 	struct device_node *controller; /* Interrupt controller node */
 	u32 size; /* Specifier size */
 	u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
 };

 /**
  * of_irq_map_init - Initialize the irq remapper
  * @flags:	flags defining workarounds to enable
  *
  * Some machines have bugs in the device-tree which require certain workarounds
  * to be applied. Call this before any interrupt mapping attempts to enable
  * those workarounds.
  */
 #define OF_IMAP_OLDWORLD_MAC	0x00000001
 #define OF_IMAP_NO_PHANDLE	0x00000002

 extern void of_irq_map_init(unsigned int flags);

 /**
  * of_irq_map_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
  * @intspec:	interrupt specifier ("interrupts" property of the device)
  * @ointsize:	size of the passed in interrupt specifier
  * @addr:	address specifier (start of "reg" property of the device)
  * @out_irq:	structure of_irq filled by this function
  *
  * Returns 0 on success and a negative number on error
  *
  * This function is a low-level interrupt tree walking function. It
  * can be used to do a partial walk with synthetized reg and interrupts
  * properties, for example when resolving PCI interrupts when no device
  * node exist for the parent.
  *
  */

 extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
 			u32 ointsize, const u32 *addr,
 			struct of_irq *out_irq);

 /**
  * of_irq_map_one - Resolve an interrupt for a device
  * @device:	the device whose interrupt is to be resolved
  * @index:	index of the interrupt to resolve
  * @out_irq:	structure of_irq filled by this function
  *
  * This function resolves an interrupt, walking the tree, for a given
  * device-tree node. It's the high level pendant to of_irq_map_raw().
  * It also implements the workarounds for OldWolrd Macs.
  */
 extern int of_irq_map_one(struct device_node *device, int index,
 			struct of_irq *out_irq);

 /**
  * of_irq_map_pci - Resolve the interrupt for a PCI device
  * @pdev:	the device whose interrupt is to be resolved
  * @out_irq:	structure of_irq filled by this function
  *
  * This function resolves the PCI interrupt for a given PCI device. If a
  * device-node exists for a given pci_dev, it will use normal OF tree
  * walking. If not, it will implement standard swizzling and walk up the
  * PCI tree until an device-node is found, at which point it will finish
  * resolving using the OF tree walking.
  */
 struct pci_dev;
 extern int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq);

 extern int of_irq_to_resource(struct device_node *dev, int index,
 			struct resource *r);

 /**
  * of_iomap - Maps the memory mapped IO for a given device_node
  * @device:	the device whose io range will be mapped
  * @index:	index of the io range
  *
  * Returns a pointer to the mapped memory
  */
 extern void __iomem *of_iomap(struct device_node *device, int index);

 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_MICROBLAZE_PROM_H */
	/*
	* Definitions for talking to the Open Firmware PROM on
	* Power Macintosh computers.
	*
	* Copyright (C) 1996-2005 Paul Mackerras.
	*
	* Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License
	* as published by the Free Software Foundation; either version
	* 2 of the License, or (at your option) any later version.
	*/

	#include <linux/of.h> /* linux/of.h gets to determine #include ordering */

	#ifndef _ASM_MICROBLAZE_PROM_H
	#define _ASM_MICROBLAZE_PROM_H
	#ifdef __KERNEL__
	#ifndef __ASSEMBLY__

	#include <linux/types.h>
	#include <linux/of_fdt.h>
	#include <linux/proc_fs.h>
	#include <linux/platform_device.h>
	#include <asm/irq.h>
	#include <asm/atomic.h>

	#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 1
	#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1

	#define of_compat_cmp(s1, s2, l) strncasecmp((s1), (s2), (l))
	#define of_prop_cmp(s1, s2) strcmp((s1), (s2))
	#define of_node_cmp(s1, s2) strcasecmp((s1), (s2))

	extern struct device_node *of_chosen;

	#define HAVE_ARCH_DEVTREE_FIXUPS

	extern rwlock_t devtree_lock; /* temporary while merging */

	/* 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 int early_uartlite_console(void);

	extern struct resource request_OF_resource(struct device_node node,
	int index, const char *name_postfix);
	extern int release_OF_resource(struct device_node *node, int index);

	/*
	* OF address retreival & translation
	*/

	/* Translate an OF address block into a CPU physical address
	*/
	extern u64 of_translate_address(struct device_node np, const u32 addr);

	/* Extract an address from a device, returns the region size and
	* the address space flags too. The PCI version uses a BAR number
	* instead of an absolute index
	*/
	extern const u32 of_get_address(struct device_node dev, int index,
	u64 size, unsigned int flags);
	extern const u32 of_get_pci_address(struct device_node dev, int bar_no,
	u64 size, unsigned int flags);

	/* Get an address as a resource. Note that if your address is
	* a PIO address, the conversion will fail if the physical address
	* can't be internally converted to an IO token with
	* pci_address_to_pio(), that is because it's either called to early
	* or it can't be matched to any host bridge IO space
	*/
	extern int of_address_to_resource(struct device_node *dev, int index,
	struct resource *r);
	extern int of_pci_address_to_resource(struct device_node *dev, int bar,
	struct resource *r);

	/* Parse the ibm,dma-window property of an OF node into the busno, phys and
	* size parameters.
	*/
	void of_parse_dma_window(struct device_node dn, const void dma_window_prop,
	unsigned long busno, unsigned long phys, unsigned long *size);

	extern void kdump_move_device_tree(void);

	/* CPU OF node matching */
	struct device_node of_get_cpu_node(int cpu, unsigned int thread);

	/* Get the MAC address */
	extern const void of_get_mac_address(struct device_node np);

	/*
	* OF interrupt mapping
	*/

	/* This structure is returned when an interrupt is mapped. The controller
	* field needs to be put() after use
	*/

	#define OF_MAX_IRQ_SPEC 4 /* We handle specifiers of at most 4 cells */

	struct of_irq {
	struct device_node controller; / Interrupt controller node */
	u32 size; /* Specifier size */
	u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
	};

	/**
	* of_irq_map_init - Initialize the irq remapper
	* @flags: flags defining workarounds to enable
	*
	* Some machines have bugs in the device-tree which require certain workarounds
	* to be applied. Call this before any interrupt mapping attempts to enable
	* those workarounds.
	*/
	#define OF_IMAP_OLDWORLD_MAC 0x00000001
	#define OF_IMAP_NO_PHANDLE 0x00000002

	extern void of_irq_map_init(unsigned int flags);

	/**
	* of_irq_map_raw - Low level interrupt tree parsing
	* @parent: the device interrupt parent
	* @intspec: interrupt specifier ("interrupts" property of the device)
	* @ointsize: size of the passed in interrupt specifier
	* @addr: address specifier (start of "reg" property of the device)
	* @out_irq: structure of_irq filled by this function
	*
	* Returns 0 on success and a negative number on error
	*
	* This function is a low-level interrupt tree walking function. It
	* can be used to do a partial walk with synthetized reg and interrupts
	* properties, for example when resolving PCI interrupts when no device
	* node exist for the parent.
	*
	*/

	extern int of_irq_map_raw(struct device_node parent, const u32 intspec,
	u32 ointsize, const u32 *addr,
	struct of_irq *out_irq);

	/**
	* of_irq_map_one - Resolve an interrupt for a device
	* @device: the device whose interrupt is to be resolved
	* @index: index of the interrupt to resolve
	* @out_irq: structure of_irq filled by this function
	*
	* This function resolves an interrupt, walking the tree, for a given
	* device-tree node. It's the high level pendant to of_irq_map_raw().
	* It also implements the workarounds for OldWolrd Macs.
	*/
	extern int of_irq_map_one(struct device_node *device, int index,
	struct of_irq *out_irq);

	/**
	* of_irq_map_pci - Resolve the interrupt for a PCI device
	* @pdev: the device whose interrupt is to be resolved
	* @out_irq: structure of_irq filled by this function
	*
	* This function resolves the PCI interrupt for a given PCI device. If a
	* device-node exists for a given pci_dev, it will use normal OF tree
	* walking. If not, it will implement standard swizzling and walk up the
	* PCI tree until an device-node is found, at which point it will finish
	* resolving using the OF tree walking.
	*/
	struct pci_dev;
	extern int of_irq_map_pci(struct pci_dev pdev, struct of_irq out_irq);

	extern int of_irq_to_resource(struct device_node *dev, int index,
	struct resource *r);

	/**
	* of_iomap - Maps the memory mapped IO for a given device_node
	* @device: the device whose io range will be mapped
	* @index: index of the io range
	*
	* Returns a pointer to the mapped memory
	*/
	extern void __iomem of_iomap(struct device_node device, int index);

	#endif /* __ASSEMBLY__ */
	#endif /* __KERNEL__ */
	#endif /* _ASM_MICROBLAZE_PROM_H */