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-rw-r--r--arch/powerpc/include/asm/prom.h47
-rw-r--r--arch/powerpc/kernel/prom_parse.c266
2 files changed, 0 insertions, 313 deletions
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 4486765db6e..10d5ee55670 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -105,50 +105,6 @@ struct device_node *of_find_next_cache_node(struct device_node *np);
/* Get the MAC address */
extern const void *of_get_mac_address(struct device_node *np);
-/*
- * OF interrupt mapping
- */
-
-#define OF_IMAP_OLDWORLD_MAC 0x00000001
-#define OF_IMAP_NO_PHANDLE 0x00000002
-
-#if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
-/* Workarounds only needed for 32bit powermac machines */
-extern unsigned int of_irq_workarounds;
-extern struct device_node *of_irq_dflt_pic;
-extern int of_irq_map_oldworld(struct device_node *device, int index,
- struct of_irq *out_irq);
-#else
-#define of_irq_workarounds (0)
-#define of_irq_dflt_pic (NULL)
-static inline int of_irq_map_oldworld(struct device_node *device, int index,
- struct of_irq *out_irq)
-{
- return -EINVAL;
-}
-#endif
-
-/**
- * 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_pci - Resolve the interrupt for a PCI device
* @pdev: the device whose interrupt is to be resolved
@@ -163,9 +119,6 @@ extern int of_irq_map_raw(struct device_node *parent, const u32 *intspec,
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
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;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-12 08:29:10 +0000