[SPARC64]: Convert Cheetah memory controller driver to in-kernel PROM tree.

Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/arch/sparc64/kernel/chmc.c b/arch/sparc64/kernel/chmc.c
index 97cf912f0853e7aa45676063648b557b878959eb..259f37e516f54f1e82d5c91169ede37faf3382d6 100644 (file)
--- a/arch/sparc64/kernel/chmc.c
+++ b/arch/sparc64/kernel/chmc.c
@@ -17,6 +17,7 @@
 #include <asm/spitfire.h>
 #include <asm/chmctrl.h>
 #include <asm/oplib.h>
+#include <asm/prom.h>
 #include <asm/io.h>
 
 #define CHMCTRL_NDGRPS 2
@@ -67,7 +68,6 @@ struct bank_info {
 struct mctrl_info {
        struct list_head        list;
        int                     portid;
-       int                     index;
 
        struct obp_mem_layout   layout_prop;
        int                     layout_size;
@@ -339,12 +339,13 @@ static void fetch_decode_regs(struct mctrl_info *mp)
                                 read_mcreg(mp, CHMCTRL_DECODE4));
 }
 
-static int init_one_mctrl(int node, int index)
+static int init_one_mctrl(struct device_node *dp)
 {
        struct mctrl_info *mp = kmalloc(sizeof(*mp), GFP_KERNEL);
-       int portid = prom_getintdefault(node, "portid", -1);
-       struct linux_prom64_registers p_reg_prop;
-       int t;
+       int portid = of_getintprop_default(dp, "portid", -1);
+       struct linux_prom64_registers *regs;
+       void *pval;
+       int len;
 
        if (!mp)
                return -1;
@@ -353,24 +354,21 @@ static int init_one_mctrl(int node, int index)
                goto fail;
 
        mp->portid = portid;
-       mp->layout_size = prom_getproplen(node, "memory-layout");
-       if (mp->layout_size < 0)
+       pval = of_get_property(dp, "memory-layout", &len);
+       mp->layout_size = len;
+       if (!pval)
                mp->layout_size = 0;
-       if (mp->layout_size > sizeof(mp->layout_prop))
-               goto fail;
-
-       if (mp->layout_size > 0)
-               prom_getproperty(node, "memory-layout",
-                                (char *) &mp->layout_prop,
-                                mp->layout_size);
+       else {
+               if (mp->layout_size > sizeof(mp->layout_prop))
+                       goto fail;
+               memcpy(&mp->layout_prop, pval, len);
+       }
 
-       t = prom_getproperty(node, "reg",
-                            (char *) &p_reg_prop,
-                            sizeof(p_reg_prop));
-       if (t < 0 || p_reg_prop.reg_size != 0x48)
+       regs = of_get_property(dp, "reg", NULL);
+       if (!regs || regs->reg_size != 0x48)
                goto fail;
 
-       mp->regs = ioremap(p_reg_prop.phys_addr, p_reg_prop.reg_size);
+       mp->regs = ioremap(regs->phys_addr, regs->reg_size);
        if (mp->regs == NULL)
                goto fail;
 
@@ -384,13 +382,11 @@ static int init_one_mctrl(int node, int index)
 
        fetch_decode_regs(mp);
 
-       mp->index = index;
-
        list_add(&mp->list, &mctrl_list);
 
        /* Report the device. */
-       printk(KERN_INFO "chmc%d: US3 memory controller at %p [%s]\n",
-              mp->index,
+       printk(KERN_INFO "%s: US3 memory controller at %p [%s]\n",
+              dp->full_name,
               mp->regs, (mp->layout_size ? "ACTIVE" : "INACTIVE"));
 
        return 0;
@@ -404,34 +400,19 @@ fail:
        return -1;
 }
 
-static int __init probe_for_string(char *name, int index)
-{
-       int node = prom_getchild(prom_root_node);
-
-       while ((node = prom_searchsiblings(node, name)) != 0) {
-               int ret = init_one_mctrl(node, index);
-
-               if (!ret)
-                       index++;
-
-               node = prom_getsibling(node);
-               if (!node)
-                       break;
-       }
-
-       return index;
-}
-
 static int __init chmc_init(void)
 {
-       int index;
+       struct device_node *dp;
 
        /* This driver is only for cheetah platforms. */
        if (tlb_type != cheetah && tlb_type != cheetah_plus)
                return -ENODEV;
 
-       index = probe_for_string("memory-controller", 0);
-       index = probe_for_string("mc-us3", index);
+       for_each_node_by_name(dp, "memory-controller")
+               init_one_mctrl(dp);
+
+       for_each_node_by_name(dp, "mc-us3")
+               init_one_mctrl(dp);
 
        return 0;
 }