[PATCH] powerpc: Remove device_node addrs/n_addr

The pre-parsed addrs/n_addrs fields in struct device_node are finally
gone. Remove the dodgy heuristics that did that parsing at boot and
remove the fields themselves since we now have a good replacement with
the new OF parsing code. This patch also fixes a bunch of drivers to use
the new code instead, so that at least pmac32, pseries, iseries and g5
defconfigs build.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 64 insertions, 58 deletions

diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 00d87f5bb7be..ad1434e3f227 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -223,6 +223,7 @@ static int offb_blank(int blank, struct fb_info *info)
 int __init offb_init(void)
 {
         struct device_node *dp = NULL, *boot_disp = NULL;
+
 #if defined(CONFIG_BOOTX_TEXT) && defined(CONFIG_PPC32)
         struct device_node *macos_display = NULL;
 #endif
@@ -234,60 +235,54 @@ int __init offb_init(void)
         if (boot_infos != 0) {
                 unsigned long addr =
                     (unsigned long) boot_infos->dispDeviceBase;
+                u32 *addrp;
+                u64 daddr, dsize;
+                unsigned int flags;
+
                 /* find the device node corresponding to the macos display */
                 while ((dp = of_find_node_by_type(dp, "display"))) {
                         int i;
-                        /*
-                         * Grrr...  It looks like the MacOS ATI driver
-                         * munges the assigned-addresses property (but
-                         * the AAPL,address value is OK).
-                         */
-                        if (strncmp(dp->name, "ATY,", 4) == 0
-                            && dp->n_addrs == 1) {
-                                unsigned int *ap =
-                                    (unsigned int *) get_property(dp,
-                                                                  "AAPL,address",
-                                                                  NULL);
-                                if (ap != NULL) {
-                                        dp->addrs[0].address = *ap;
-                                        dp->addrs[0].size = 0x01000000;
-                                }
-                        }
 
                         /*
-                         * The LTPro on the Lombard powerbook has no addresses
-                         * on the display nodes, they are on their parent.
+                         * Look for an AAPL,address property first.
                          */
-                        if (dp->n_addrs == 0
-                            && device_is_compatible(dp, "ATY,264LTPro")) {
-                                int na;
-                                unsigned int *ap = (unsigned int *)
-                                    get_property(dp, "AAPL,address", &na);
-                                if (ap != 0)
-                                        for (na /= sizeof(unsigned int);
-                                             na > 0; --na, ++ap)
-                                                if (*ap <= addr
-                                                    && addr <
-                                                    *ap + 0x1000000)
-                                                        goto foundit;
+                        unsigned int na;
+                        unsigned int *ap =
+                                (unsigned int *)get_property(dp, "AAPL,address",
+                                                             &na);
+                        if (ap != 0) {
+                                for (na /= sizeof(unsigned int); na > 0;
+                                     --na, ++ap)
+                                        if (*ap <= addr &&
+                                            addr < *ap + 0x1000000) {
+                                                macos_display = dp;
+                                                goto foundit;
+                                        }
                         }
 
                         /*
                          * See if the display address is in one of the address
                          * ranges for this display.
                          */
-                        for (i = 0; i < dp->n_addrs; ++i) {
-                                if (dp->addrs[i].address <= addr
-                                    && addr <
-                                    dp->addrs[i].address +
-                                    dp->addrs[i].size)
+                        i = 0;
+                        for (;;) {
+                                addrp = of_get_address(dp, i++, &dsize, &flags);
+                                if (addrp == NULL)
                                         break;
+                                if (!(flags & IORESOURCE_MEM))
+                                        continue;
+                                daddr = of_translate_address(dp, addrp);
+                                if (daddr == OF_BAD_ADDR)
+                                        continue;
+                                if (daddr <= addr && addr < (daddr + dsize)) {
+                                        macos_display = dp;
+                                        goto foundit;
+                                }
                         }
-                        if (i < dp->n_addrs) {
-                              foundit:
+                foundit:
+                        if (macos_display) {
                                 printk(KERN_INFO "MacOS display is %s\n",
                                        dp->full_name);
-                                macos_display = dp;
                                 break;
                         }
                 }
@@ -326,8 +321,10 @@ static void __init offb_init_nodriver(struct device_node *dp)
         int *pp, i;
         unsigned int len;
         int width = 640, height = 480, depth = 8, pitch;
-        unsigned int rsize, *up;
-        unsigned long address = 0;
+        unsigned int flags, rsize, *up;
+        u64 address = OF_BAD_ADDR;
+        u32 *addrp;
+        u64 asize;
 
         if ((pp = (int *) get_property(dp, "depth", &len)) != NULL
             && len == sizeof(int))
@@ -363,7 +360,7 @@ static void __init offb_init_nodriver(struct device_node *dp)
                                break;
                }
                if (pdev) {
-                       for (i = 0; i < 6 && address == 0; i++) {
+                       for (i = 0; i < 6 && address == OF_BAD_ADDR; i++) {
                                if ((pci_resource_flags(pdev, i) &
                                     IORESOURCE_MEM) &&
                                    (pci_resource_len(pdev, i) >= rsize))
@@ -374,27 +371,33 @@ static void __init offb_init_nodriver(struct device_node *dp)
         }
 #endif /* CONFIG_PCI */
 
-        if (address == 0 &&
-            (up = (unsigned *) get_property(dp, "address", &len)) != NULL &&
-            len == sizeof(unsigned))
-                address = (u_long) * up;
-        if (address == 0) {
-                for (i = 0; i < dp->n_addrs; ++i)
-                        if (dp->addrs[i].size >=
-                            pitch * height * depth / 8)
-                                break;
-                if (i >= dp->n_addrs) {
+       /* This one is dodgy, we may drop it ... */
+       if (address == OF_BAD_ADDR &&
+           (up = (unsigned *) get_property(dp, "address", &len)) != NULL &&
+           len == sizeof(unsigned int))
+               address = (u64) * up;
+
+       if (address == OF_BAD_ADDR) {
+               for (i = 0; (addrp = of_get_address(dp, i, &asize, &flags))
+                            != NULL; i++) {
+                       if (!(flags & IORESOURCE_MEM))
+                               continue;
+                       if (asize >= pitch * height * depth / 8)
+                               break;
+               }
+                if (addrp == NULL) {
                         printk(KERN_ERR
                                "no framebuffer address found for %s\n",
                                dp->full_name);
                         return;
                 }
-
-                address = (u_long) dp->addrs[i].address;
-
-#ifdef CONFIG_PPC64
-                address += ((struct pci_dn *)dp->data)->phb->pci_mem_offset;
-#endif
+                address = of_translate_address(dp, addrp);
+                if (address == OF_BAD_ADDR) {
+                        printk(KERN_ERR
+                               "can't translate framebuffer address for %s\n",
+                               dp->full_name);
+                        return;
+                }
 
                 /* kludge for valkyrie */
                 if (strcmp(dp->name, "valkyrie") == 0)
@@ -459,7 +462,9 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 
         par->cmap_type = cmap_unknown;
         if (depth == 8) {
-                /* XXX kludge for ati */
+
+                /* Palette hacks disabled for now */
+#if 0
                 if (dp && !strncmp(name, "ATY,Rage128", 11)) {
                         unsigned long regbase = dp->addrs[2].address;
                         par->cmap_adr = ioremap(regbase, 0x1FFF);
@@ -490,6 +495,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
                         par->cmap_adr = ioremap(regbase + 0x6000, 0x1000);
                         par->cmap_type = cmap_gxt2000;
                 }
+#endif
                 fix->visual = par->cmap_adr ? FB_VISUAL_PSEUDOCOLOR
                     : FB_VISUAL_STATIC_PSEUDOCOLOR;
         } else