diff options
Diffstat (limited to 'arch/powerpc/kernel/prom_parse.c')
| -rw-r--r-- | arch/powerpc/kernel/prom_parse.c | 266 | 
1 files changed, 0 insertions, 266 deletions
diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c index dfa6de6572b..d61a5c5fe69 100644 --- a/arch/powerpc/kernel/prom_parse.c +++ b/arch/powerpc/kernel/prom_parse.c @@ -678,257 +678,6 @@ void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,  	*size = of_read_number(dma_window, cells);  } -/* - * Interrupt remapper - */ - -static struct device_node *of_irq_find_parent(struct device_node *child) -{ -	struct device_node *p; -	const phandle *parp; - -	if (!of_node_get(child)) -		return NULL; - -	do { -		parp = of_get_property(child, "interrupt-parent", NULL); -		if (parp == NULL) -			p = of_get_parent(child); -		else { -			if (of_irq_workarounds & OF_IMAP_NO_PHANDLE) -				p = of_node_get(of_irq_dflt_pic); -			else -				p = of_find_node_by_phandle(*parp); -		} -		of_node_put(child); -		child = p; -	} while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL); - -	return p; -} - -int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize, -		const u32 *addr, struct of_irq *out_irq) -{ -	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL; -	const u32 *tmp, *imap, *imask; -	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0; -	int imaplen, match, i; - -	DBG("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n", -	    parent->full_name, intspec[0], intspec[1], ointsize); - -	ipar = of_node_get(parent); - -	/* First get the #interrupt-cells property of the current cursor -	 * that tells us how to interpret the passed-in intspec. If there -	 * is none, we are nice and just walk up the tree -	 */ -	do { -		tmp = of_get_property(ipar, "#interrupt-cells", NULL); -		if (tmp != NULL) { -			intsize = *tmp; -			break; -		} -		tnode = ipar; -		ipar = of_irq_find_parent(ipar); -		of_node_put(tnode); -	} while (ipar); -	if (ipar == NULL) { -		DBG(" -> no parent found !\n"); -		goto fail; -	} - -	DBG("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize); - -	if (ointsize != intsize) -		return -EINVAL; - -	/* Look for this #address-cells. We have to implement the old linux -	 * trick of looking for the parent here as some device-trees rely on it -	 */ -	old = of_node_get(ipar); -	do { -		tmp = of_get_property(old, "#address-cells", NULL); -		tnode = of_get_parent(old); -		of_node_put(old); -		old = tnode; -	} while(old && tmp == NULL); -	of_node_put(old); -	old = NULL; -	addrsize = (tmp == NULL) ? 2 : *tmp; - -	DBG(" -> addrsize=%d\n", addrsize); - -	/* Now start the actual "proper" walk of the interrupt tree */ -	while (ipar != NULL) { -		/* Now check if cursor is an interrupt-controller and if it is -		 * then we are done -		 */ -		if (of_get_property(ipar, "interrupt-controller", NULL) != -				NULL) { -			DBG(" -> got it !\n"); -			memcpy(out_irq->specifier, intspec, -			       intsize * sizeof(u32)); -			out_irq->size = intsize; -			out_irq->controller = ipar; -			of_node_put(old); -			return 0; -		} - -		/* Now look for an interrupt-map */ -		imap = of_get_property(ipar, "interrupt-map", &imaplen); -		/* No interrupt map, check for an interrupt parent */ -		if (imap == NULL) { -			DBG(" -> no map, getting parent\n"); -			newpar = of_irq_find_parent(ipar); -			goto skiplevel; -		} -		imaplen /= sizeof(u32); - -		/* Look for a mask */ -		imask = of_get_property(ipar, "interrupt-map-mask", NULL); - -		/* If we were passed no "reg" property and we attempt to parse -		 * an interrupt-map, then #address-cells must be 0. -		 * Fail if it's not. -		 */ -		if (addr == NULL && addrsize != 0) { -			DBG(" -> no reg passed in when needed !\n"); -			goto fail; -		} - -		/* Parse interrupt-map */ -		match = 0; -		while (imaplen > (addrsize + intsize + 1) && !match) { -			/* Compare specifiers */ -			match = 1; -			for (i = 0; i < addrsize && match; ++i) { -				u32 mask = imask ? imask[i] : 0xffffffffu; -				match = ((addr[i] ^ imap[i]) & mask) == 0; -			} -			for (; i < (addrsize + intsize) && match; ++i) { -				u32 mask = imask ? imask[i] : 0xffffffffu; -				match = -				   ((intspec[i-addrsize] ^ imap[i]) & mask) == 0; -			} -			imap += addrsize + intsize; -			imaplen -= addrsize + intsize; - -			DBG(" -> match=%d (imaplen=%d)\n", match, imaplen); - -			/* Get the interrupt parent */ -			if (of_irq_workarounds & OF_IMAP_NO_PHANDLE) -				newpar = of_node_get(of_irq_dflt_pic); -			else -				newpar = of_find_node_by_phandle((phandle)*imap); -			imap++; -			--imaplen; - -			/* Check if not found */ -			if (newpar == NULL) { -				DBG(" -> imap parent not found !\n"); -				goto fail; -			} - -			/* Get #interrupt-cells and #address-cells of new -			 * parent -			 */ -			tmp = of_get_property(newpar, "#interrupt-cells", NULL); -			if (tmp == NULL) { -				DBG(" -> parent lacks #interrupt-cells !\n"); -				goto fail; -			} -			newintsize = *tmp; -			tmp = of_get_property(newpar, "#address-cells", NULL); -			newaddrsize = (tmp == NULL) ? 0 : *tmp; - -			DBG(" -> newintsize=%d, newaddrsize=%d\n", -			    newintsize, newaddrsize); - -			/* Check for malformed properties */ -			if (imaplen < (newaddrsize + newintsize)) -				goto fail; - -			imap += newaddrsize + newintsize; -			imaplen -= newaddrsize + newintsize; - -			DBG(" -> imaplen=%d\n", imaplen); -		} -		if (!match) -			goto fail; - -		of_node_put(old); -		old = of_node_get(newpar); -		addrsize = newaddrsize; -		intsize = newintsize; -		intspec = imap - intsize; -		addr = intspec - addrsize; - -	skiplevel: -		/* Iterate again with new parent */ -		DBG(" -> new parent: %s\n", newpar ? newpar->full_name : "<>"); -		of_node_put(ipar); -		ipar = newpar; -		newpar = NULL; -	} - fail: -	of_node_put(ipar); -	of_node_put(old); -	of_node_put(newpar); - -	return -EINVAL; -} -EXPORT_SYMBOL_GPL(of_irq_map_raw); - -int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq) -{ -	struct device_node *p; -	const u32 *intspec, *tmp, *addr; -	u32 intsize, intlen; -	int res = -EINVAL; - -	DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index); - -	/* OldWorld mac stuff is "special", handle out of line */ -	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC) -		return of_irq_map_oldworld(device, index, out_irq); - -	/* Get the interrupts property */ -	intspec = of_get_property(device, "interrupts", &intlen); -	if (intspec == NULL) -		return -EINVAL; -	intlen /= sizeof(u32); - -	/* Get the reg property (if any) */ -	addr = of_get_property(device, "reg", NULL); - -	/* Look for the interrupt parent. */ -	p = of_irq_find_parent(device); -	if (p == NULL) -		return -EINVAL; - -	/* Get size of interrupt specifier */ -	tmp = of_get_property(p, "#interrupt-cells", NULL); -	if (tmp == NULL) -		goto out; -	intsize = *tmp; - -	DBG(" intsize=%d intlen=%d\n", intsize, intlen); - -	/* Check index */ -	if ((index + 1) * intsize > intlen) -		goto out; - -	/* Get new specifier and map it */ -	res = of_irq_map_raw(p, intspec + index * intsize, intsize, -			     addr, out_irq); -out: -	of_node_put(p); -	return res; -} -EXPORT_SYMBOL_GPL(of_irq_map_one); -  /**   * Search the device tree for the best MAC address to use.  'mac-address' is   * checked first, because that is supposed to contain to "most recent" MAC @@ -967,21 +716,6 @@ const void *of_get_mac_address(struct device_node *np)  }  EXPORT_SYMBOL(of_get_mac_address); -int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) -{ -	int irq = irq_of_parse_and_map(dev, index); - -	/* Only dereference the resource if both the -	 * resource and the irq are valid. */ -	if (r && irq != NO_IRQ) { -		r->start = r->end = irq; -		r->flags = IORESOURCE_IRQ; -	} - -	return irq; -} -EXPORT_SYMBOL_GPL(of_irq_to_resource); -  void __iomem *of_iomap(struct device_node *np, int index)  {  	struct resource res;  |