X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Fprom_parse.c;h=8362620c9e6f449962b111f1537e767e87ea9df7;hb=78b36558b7061430fe16ce49f83f1bc3a0b7d4b8;hp=91b443c9a48857239b35428a85fe86e8953f5f8d;hpb=84532c91206bc6748991fb1ae3ba8a1894d339fa;p=safe%2Fjmp%2Flinux-2.6

diff --git a/arch/powerpc/kernel/prom_parse.c b/arch/powerpc/kernel/prom_parse.c
index 91b443c..8362620 100644
--- a/arch/powerpc/kernel/prom_parse.c
+++ b/arch/powerpc/kernel/prom_parse.c
@@ -68,9 +68,9 @@ static void of_bus_default_count_cells(struct device_node *dev,
 				       int *addrc, int *sizec)
 {
 	if (addrc)
-		*addrc = prom_n_addr_cells(dev);
+		*addrc = of_n_addr_cells(dev);
 	if (sizec)
-		*sizec = prom_n_size_cells(dev);
+		*sizec = of_n_size_cells(dev);
 }
 
 static u64 of_bus_default_map(u32 *addr, const u32 *range,
@@ -128,12 +128,35 @@ static void of_bus_pci_count_cells(struct device_node *np,
 		*sizec = 2;
 }
 
+static unsigned int of_bus_pci_get_flags(const u32 *addr)
+{
+	unsigned int flags = 0;
+	u32 w = addr[0];
+
+	switch((w >> 24) & 0x03) {
+	case 0x01:
+		flags |= IORESOURCE_IO;
+		break;
+	case 0x02: /* 32 bits */
+	case 0x03: /* 64 bits */
+		flags |= IORESOURCE_MEM;
+		break;
+	}
+	if (w & 0x40000000)
+		flags |= IORESOURCE_PREFETCH;
+	return flags;
+}
+
 static u64 of_bus_pci_map(u32 *addr, const u32 *range, int na, int ns, int pna)
 {
 	u64 cp, s, da;
+	unsigned int af, rf;
+
+	af = of_bus_pci_get_flags(addr);
+	rf = of_bus_pci_get_flags(range);
 
 	/* Check address type match */
-	if ((addr[0] ^ range[0]) & 0x03000000)
+	if ((af ^ rf) & (IORESOURCE_MEM | IORESOURCE_IO))
 		return OF_BAD_ADDR;
 
 	/* Read address values, skipping high cell */
@@ -153,25 +176,6 @@ static int of_bus_pci_translate(u32 *addr, u64 offset, int na)
 	return of_bus_default_translate(addr + 1, offset, na - 1);
 }
 
-static unsigned int of_bus_pci_get_flags(const u32 *addr)
-{
-	unsigned int flags = 0;
-	u32 w = addr[0];
-
-	switch((w >> 24) & 0x03) {
-	case 0x01:
-		flags |= IORESOURCE_IO;
-		break;
-	case 0x02: /* 32 bits */
-	case 0x03: /* 64 bits */
-		flags |= IORESOURCE_MEM;
-		break;
-	}
-	if (w & 0x40000000)
-		flags |= IORESOURCE_PREFETCH;
-	return flags;
-}
-
 const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 			unsigned int *flags)
 {
@@ -196,7 +200,7 @@ const u32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size,
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = get_property(dev, bus->addresses, &psize);
+	prop = of_get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -228,11 +232,6 @@ int of_pci_address_to_resource(struct device_node *dev, int bar,
 }
 EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
 
-static u8 of_irq_pci_swizzle(u8 slot, u8 pin)
-{
-	return (((pin - 1) + slot) % 4) + 1;
-}
-
 int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 {
 	struct device_node *dn, *ppnode;
@@ -246,8 +245,11 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 	 * parsing
 	 */
 	dn = pci_device_to_OF_node(pdev);
-	if (dn)
-		return of_irq_map_one(dn, 0, out_irq);
+	if (dn) {
+		rc = of_irq_map_one(dn, 0, out_irq);
+		if (!rc)
+			return rc;
+	}
 
 	/* Ok, we don't, time to have fun. Let's start by building up an
 	 * interrupt spec.  we assume #interrupt-cells is 1, which is standard
@@ -273,7 +275,7 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 #else
 			struct pci_controller *host;
 			host = pci_bus_to_host(pdev->bus);
-			ppnode = host ? host->arch_data : NULL;
+			ppnode = host ? host->dn : NULL;
 #endif
 			/* No node for host bridge ? give up */
 			if (ppnode == NULL)
@@ -299,7 +301,7 @@ int of_irq_map_pci(struct pci_dev *pdev, struct of_irq *out_irq)
 		/* We can only get here if we hit a P2P bridge with no node,
 		 * let's do standard swizzling and try again
 		 */
-		lspec = of_irq_pci_swizzle(PCI_SLOT(pdev->devfn), lspec);
+		lspec = pci_swizzle_interrupt_pin(pdev, lspec);
 		pdev = ppdev;
 	}
 
@@ -419,7 +421,7 @@ static struct of_bus *of_match_bus(struct device_node *np)
 
 static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 			    struct of_bus *pbus, u32 *addr,
-			    int na, int ns, int pna)
+			    int na, int ns, int pna, const char *rprop)
 {
 	const u32 *ranges;
 	unsigned int rlen;
@@ -438,7 +440,7 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
 	 * to translate addresses that aren't supposed to be translated in
 	 * the first place. --BenH.
 	 */
-	ranges = get_property(parent, "ranges", &rlen);
+	ranges = of_get_property(parent, rprop, &rlen);
 	if (ranges == NULL || rlen == 0) {
 		offset = of_read_number(addr, na);
 		memset(addr, 0, pna * 4);
@@ -481,7 +483,8 @@ static int of_translate_one(struct device_node *parent, struct of_bus *bus,
  * that can be mapped to a cpu physical address). This is not really specified
  * that way, but this is traditionally the way IBM at least do things
  */
-u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
+u64 __of_translate_address(struct device_node *dev, const u32 *in_addr,
+			   const char *rprop)
 {
 	struct device_node *parent = NULL;
 	struct of_bus *bus, *pbus;
@@ -540,7 +543,7 @@ u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
 		    pbus->name, pna, pns, parent->full_name);
 
 		/* Apply bus translation */
-		if (of_translate_one(dev, bus, pbus, addr, na, ns, pna))
+		if (of_translate_one(dev, bus, pbus, addr, na, ns, pna, rprop))
 			break;
 
 		/* Complete the move up one level */
@@ -556,8 +559,19 @@ u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
 
 	return result;
 }
+
+u64 of_translate_address(struct device_node *dev, const u32 *in_addr)
+{
+	return __of_translate_address(dev, in_addr, "ranges");
+}
 EXPORT_SYMBOL(of_translate_address);
 
+u64 of_translate_dma_address(struct device_node *dev, const u32 *in_addr)
+{
+	return __of_translate_address(dev, in_addr, "dma-ranges");
+}
+EXPORT_SYMBOL(of_translate_dma_address);
+
 const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 		    unsigned int *flags)
 {
@@ -578,7 +592,7 @@ const u32 *of_get_address(struct device_node *dev, int index, u64 *size,
 		return NULL;
 
 	/* Get "reg" or "assigned-addresses" property */
-	prop = get_property(dev, bus->addresses, &psize);
+	prop = of_get_property(dev, bus->addresses, &psize);
 	if (prop == NULL)
 		return NULL;
 	psize /= 4;
@@ -650,17 +664,17 @@ void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
 	/* busno is always one cell */
 	*busno = *(dma_window++);
 
-	prop = get_property(dn, "ibm,#dma-address-cells", NULL);
+	prop = of_get_property(dn, "ibm,#dma-address-cells", NULL);
 	if (!prop)
-		prop = get_property(dn, "#address-cells", NULL);
+		prop = of_get_property(dn, "#address-cells", NULL);
 
-	cells = prop ? *(u32 *)prop : prom_n_addr_cells(dn);
+	cells = prop ? *(u32 *)prop : of_n_addr_cells(dn);
 	*phys = of_read_number(dma_window, cells);
 
 	dma_window += cells;
 
-	prop = get_property(dn, "ibm,#dma-size-cells", NULL);
-	cells = prop ? *(u32 *)prop : prom_n_size_cells(dn);
+	prop = of_get_property(dn, "ibm,#dma-size-cells", NULL);
+	cells = prop ? *(u32 *)prop : of_n_size_cells(dn);
 	*size = of_read_number(dma_window, cells);
 }
 
@@ -680,7 +694,7 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
 		return NULL;
 
 	do {
-		parp = get_property(child, "interrupt-parent", NULL);
+		parp = of_get_property(child, "interrupt-parent", NULL);
 		if (parp == NULL)
 			p = of_get_parent(child);
 		else {
@@ -691,7 +705,7 @@ static struct device_node *of_irq_find_parent(struct device_node *child)
 		}
 		of_node_put(child);
 		child = p;
-	} while (p && get_property(p, "#interrupt-cells", NULL) == NULL);
+	} while (p && of_get_property(p, "#interrupt-cells", NULL) == NULL);
 
 	return p;
 }
@@ -715,10 +729,7 @@ void of_irq_map_init(unsigned int flags)
 	if (flags & OF_IMAP_NO_PHANDLE) {
 		struct device_node *np;
 
-		for(np = NULL; (np = of_find_all_nodes(np)) != NULL;) {
-			if (get_property(np, "interrupt-controller", NULL)
-			    == NULL)
-				continue;
+		for_each_node_with_property(np, "interrupt-controller") {
 			/* Skip /chosen/interrupt-controller */
 			if (strcmp(np->name, "chosen") == 0)
 				continue;
@@ -755,7 +766,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 	 * is none, we are nice and just walk up the tree
 	 */
 	do {
-		tmp = get_property(ipar, "#interrupt-cells", NULL);
+		tmp = of_get_property(ipar, "#interrupt-cells", NULL);
 		if (tmp != NULL) {
 			intsize = *tmp;
 			break;
@@ -779,7 +790,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 	 */
 	old = of_node_get(ipar);
 	do {
-		tmp = get_property(old, "#address-cells", NULL);
+		tmp = of_get_property(old, "#address-cells", NULL);
 		tnode = of_get_parent(old);
 		of_node_put(old);
 		old = tnode;
@@ -795,7 +806,8 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 		/* Now check if cursor is an interrupt-controller and if it is
 		 * then we are done
 		 */
-		if (get_property(ipar, "interrupt-controller", NULL) != NULL) {
+		if (of_get_property(ipar, "interrupt-controller", NULL) !=
+				NULL) {
 			DBG(" -> got it !\n");
 			memcpy(out_irq->specifier, intspec,
 			       intsize * sizeof(u32));
@@ -806,7 +818,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 		}
 
 		/* Now look for an interrupt-map */
-		imap = get_property(ipar, "interrupt-map", &imaplen);
+		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");
@@ -816,7 +828,7 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 		imaplen /= sizeof(u32);
 
 		/* Look for a mask */
-		imask = get_property(ipar, "interrupt-map-mask", NULL);
+		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.
@@ -863,15 +875,13 @@ int of_irq_map_raw(struct device_node *parent, const u32 *intspec, u32 ointsize,
 			/* Get #interrupt-cells and #address-cells of new
 			 * parent
 			 */
-			tmp = get_property(newpar, "#interrupt-cells",
-						  NULL);
+			tmp = of_get_property(newpar, "#interrupt-cells", NULL);
 			if (tmp == NULL) {
 				DBG(" -> parent lacks #interrupt-cells !\n");
 				goto fail;
 			}
 			newintsize = *tmp;
-			tmp = get_property(newpar, "#address-cells",
-						  NULL);
+			tmp = of_get_property(newpar, "#address-cells", NULL);
 			newaddrsize = (tmp == NULL) ? 0 : *tmp;
 
 			DBG(" -> newintsize=%d, newaddrsize=%d\n",
@@ -928,7 +938,7 @@ static int of_irq_map_oldworld(struct device_node *device, int index,
 	 * everything together on these)
 	 */
 	while (device) {
-		ints = get_property(device, "AAPL,interrupts", &intlen);
+		ints = of_get_property(device, "AAPL,interrupts", &intlen);
 		if (ints != NULL)
 			break;
 		device = device->parent;
@@ -961,7 +971,7 @@ 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;
+	int res = -EINVAL;
 
 	DBG("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index);
 
@@ -970,13 +980,13 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 		return of_irq_map_oldworld(device, index, out_irq);
 
 	/* Get the interrupts property */
-	intspec = get_property(device, "interrupts", &intlen);
+	intspec = of_get_property(device, "interrupts", &intlen);
 	if (intspec == NULL)
 		return -EINVAL;
 	intlen /= sizeof(u32);
 
 	/* Get the reg property (if any) */
-	addr = get_property(device, "reg", NULL);
+	addr = of_get_property(device, "reg", NULL);
 
 	/* Look for the interrupt parent. */
 	p = of_irq_find_parent(device);
@@ -984,22 +994,21 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 		return -EINVAL;
 
 	/* Get size of interrupt specifier */
-	tmp = get_property(p, "#interrupt-cells", NULL);
-	if (tmp == NULL) {
-		of_node_put(p);
-		return -EINVAL;
-	}
+	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)
-		return -EINVAL;
+		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;
 }
@@ -1043,3 +1052,28 @@ 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;
+
+	if (of_address_to_resource(np, index, &res))
+		return NULL;
+
+	return ioremap(res.start, 1 + res.end - res.start);
+}
+EXPORT_SYMBOL(of_iomap);