1 files changed, 103 insertions, 49 deletions

diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 40ae7b6a939d..80c0c665b5f6 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -280,75 +280,128 @@ static void macio_release_dev(struct device *dev)
 static int macio_resource_quirks(struct device_node *np, struct resource *res,
                                  int index)
 {
-        if (res->flags & IORESOURCE_MEM) {
-                /* Grand Central has too large resource 0 on some machines */
-                if (index == 0 && !strcmp(np->name, "gc"))
-                        res->end = res->start + 0x1ffff;
+        /* Only quirks for memory resources for now */
+        if ((res->flags & IORESOURCE_MEM) == 0)
+                return 0;
+
+        /* Grand Central has too large resource 0 on some machines */
+        if (index == 0 && !strcmp(np->name, "gc"))
+                res->end = res->start + 0x1ffff;
 
-                /* Airport has bogus resource 2 */
-                if (index >= 2 && !strcmp(np->name, "radio"))
-                        return 1;
+        /* Airport has bogus resource 2 */
+        if (index >= 2 && !strcmp(np->name, "radio"))
+                return 1;
 
 #ifndef CONFIG_PPC64
-                /* DBDMAs may have bogus sizes */
-                if ((res->start & 0x0001f000) == 0x00008000)
-                        res->end = res->start + 0xff;
+        /* DBDMAs may have bogus sizes */
+        if ((res->start & 0x0001f000) == 0x00008000)
+                res->end = res->start + 0xff;
 #endif /* CONFIG_PPC64 */
 
-                /* ESCC parent eats child resources. We could have added a
-                 * level of hierarchy, but I don't really feel the need
-                 * for it
-                 */
-                if (!strcmp(np->name, "escc"))
-                        return 1;
-
-                /* ESCC has bogus resources >= 3 */
-                if (index >= 3 && !(strcmp(np->name, "ch-a") &&
-                                    strcmp(np->name, "ch-b")))
-                        return 1;
-
-                /* Media bay has too many resources, keep only first one */
-                if (index > 0 && !strcmp(np->name, "media-bay"))
-                        return 1;
-
-                /* Some older IDE resources have bogus sizes */
-                if (!(strcmp(np->name, "IDE") && strcmp(np->name, "ATA") &&
-                      strcmp(np->type, "ide") && strcmp(np->type, "ata"))) {
-                        if (index == 0 && (res->end - res->start) > 0xfff)
-                                res->end = res->start + 0xfff;
-                        if (index == 1 && (res->end - res->start) > 0xff)
-                                res->end = res->start + 0xff;
-                }
+        /* ESCC parent eats child resources. We could have added a
+         * level of hierarchy, but I don't really feel the need
+         * for it
+         */
+        if (!strcmp(np->name, "escc"))
+                return 1;
+
+        /* ESCC has bogus resources >= 3 */
+        if (index >= 3 && !(strcmp(np->name, "ch-a") &&
+                            strcmp(np->name, "ch-b")))
+                return 1;
+
+        /* Media bay has too many resources, keep only first one */
+        if (index > 0 && !strcmp(np->name, "media-bay"))
+                return 1;
+
+        /* Some older IDE resources have bogus sizes */
+        if (!(strcmp(np->name, "IDE") && strcmp(np->name, "ATA") &&
+              strcmp(np->type, "ide") && strcmp(np->type, "ata"))) {
+                if (index == 0 && (res->end - res->start) > 0xfff)
+                        res->end = res->start + 0xfff;
+                if (index == 1 && (res->end - res->start) > 0xff)
+                        res->end = res->start + 0xff;
         }
         return 0;
 }
 
+static void macio_create_fixup_irq(struct macio_dev *dev, int index,
+                                   unsigned int line)
+{
+        unsigned int irq;
 
-static void macio_setup_interrupts(struct macio_dev *dev)
+        irq = irq_create_mapping(NULL, line, 0);
+        if (irq != NO_IRQ) {
+                dev->interrupt[index].start = irq;
+                dev->interrupt[index].flags = IORESOURCE_IRQ;
+                dev->interrupt[index].name = dev->ofdev.dev.bus_id;
+        }
+        if (dev->n_interrupts <= index)
+                dev->n_interrupts = index + 1;
+}
+
+static void macio_add_missing_resources(struct macio_dev *dev)
 {
         struct device_node *np = dev->ofdev.node;
-        int i,j;
+        unsigned int irq_base;
+
+        /* Gatwick has some missing interrupts on child nodes */
+        if (dev->bus->chip->type != macio_gatwick)
+                return;
 
-        /* For now, we use pre-parsed entries in the device-tree for
-         * interrupt routing and addresses, but we should change that
-         * to dynamically parsed entries and so get rid of most of the
-         * clutter in struct device_node
+        /* irq_base is always 64 on gatwick. I have no cleaner way to get
+         * that value from here at this point
          */
-        for (i = j = 0; i < np->n_intrs; i++) {
+        irq_base = 64;
+
+        /* Fix SCC */
+        if (strcmp(np->name, "ch-a") == 0) {
+                macio_create_fixup_irq(dev, 0, 15 + irq_base);
+                macio_create_fixup_irq(dev, 1,  4 + irq_base);
+                macio_create_fixup_irq(dev, 2,  5 + irq_base);
+                printk(KERN_INFO "macio: fixed SCC irqs on gatwick\n");
+        }
+
+        /* Fix media-bay */
+        if (strcmp(np->name, "media-bay") == 0) {
+                macio_create_fixup_irq(dev, 0, 29 + irq_base);
+                printk(KERN_INFO "macio: fixed media-bay irq on gatwick\n");
+        }
+
+        /* Fix left media bay childs */
+        if (dev->media_bay != NULL && strcmp(np->name, "floppy") == 0) {
+                macio_create_fixup_irq(dev, 0, 19 + irq_base);
+                macio_create_fixup_irq(dev, 1,  1 + irq_base);
+                printk(KERN_INFO "macio: fixed left floppy irqs\n");
+        }
+        if (dev->media_bay != NULL && strcasecmp(np->name, "ata4") == 0) {
+                macio_create_fixup_irq(dev, 0, 14 + irq_base);
+                macio_create_fixup_irq(dev, 0,  3 + irq_base);
+                printk(KERN_INFO "macio: fixed left ide irqs\n");
+        }
+}
+
+static void macio_setup_interrupts(struct macio_dev *dev)
+{
+        struct device_node *np = dev->ofdev.node;
+        unsigned int irq;
+        int i = 0, j = 0;
+
+        for (;;) {
                 struct resource *res = &dev->interrupt[j];
 
                 if (j >= MACIO_DEV_COUNT_IRQS)
                         break;
-                res->start = np->intrs[i].line;
-                res->flags = IORESOURCE_IO;
-                if (np->intrs[j].sense)
-                        res->flags |= IORESOURCE_IRQ_LOWLEVEL;
-                else
-                        res->flags |= IORESOURCE_IRQ_HIGHEDGE;
+                irq = irq_of_parse_and_map(np, i++);
+                if (irq == NO_IRQ)
+                        break;
+                res->start = irq;
+                res->flags = IORESOURCE_IRQ;
                 res->name = dev->ofdev.dev.bus_id;
-                if (macio_resource_quirks(np, res, i))
+                if (macio_resource_quirks(np, res, i - 1)) {
                         memset(res, 0, sizeof(struct resource));
-                else
+                        continue;
+                } else
                         j++;
         }
         dev->n_interrupts = j;
@@ -445,6 +498,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
         /* Setup interrupts & resources */
         macio_setup_interrupts(dev);
         macio_setup_resources(dev, parent_res);
+        macio_add_missing_resources(dev);
 
         /* Register with core */
         if (of_device_register(&dev->ofdev) != 0) {