[PATCH] powerpc: merge code values for identifying platforms

This patch merges platform codes.  systemcfg->platform is no longer used,
systemcfg use in general is deprecated as much as possible (and renamed
_systemcfg before it gets completely moved elsewhere in a future patch),
_machine is now used on ppc64 along as ppc32.  Platform codes aren't gone
yet but we are getting a step closer. A bunch of asm code in head[_64].S
is also turned into C code.

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

1 files changed, 4 insertions, 12 deletions

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 5af39f866735..1bf3642cb859 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -48,9 +48,6 @@
 #include <asm/machdep.h>
 #include <asm/pSeries_reconfig.h>
 #include <asm/pci-bridge.h>
-#ifdef CONFIG_PPC64
-#include <asm/systemcfg.h>
-#endif
 
 #ifdef DEBUG
 #define DBG(fmt...) printk(KERN_ERR fmt)
@@ -391,7 +388,7 @@ static int __devinit finish_node_interrupts(struct device_node *np,
 
 #ifdef CONFIG_PPC64
                 /* We offset irq numbers for the u3 MPIC by 128 in PowerMac */
-                if (systemcfg->platform == PLATFORM_POWERMAC && ic && ic->parent) {
+                if (_machine == PLATFORM_POWERMAC && ic && ic->parent) {
                         char *name = get_property(ic->parent, "name", NULL);
                         if (name && !strcmp(name, "u3"))
                                 np->intrs[intrcount].line += 128;
@@ -1161,13 +1158,9 @@ static int __init early_init_dt_scan_chosen(unsigned long node,
         prop = (u32 *)of_get_flat_dt_prop(node, "linux,platform", NULL);
         if (prop == NULL)
                 return 0;
-#ifdef CONFIG_PPC64
-        systemcfg->platform = *prop;
-#else
 #ifdef CONFIG_PPC_MULTIPLATFORM
         _machine = *prop;
 #endif
-#endif
 
 #ifdef CONFIG_PPC64
         /* check if iommu is forced on or off */
@@ -1346,9 +1339,6 @@ void __init early_init_devtree(void *params)
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
         lmb_enforce_memory_limit(memory_limit);
         lmb_analyze();
-#ifdef CONFIG_PPC64
-        systemcfg->physicalMemorySize = lmb_phys_mem_size();
-#endif
         lmb_reserve(0, __pa(klimit));
 
         DBG("Phys. mem: %lx\n", lmb_phys_mem_size());
@@ -1915,7 +1905,7 @@ static int of_finish_dynamic_node(struct device_node *node,
         /* We don't support that function on PowerMac, at least
          * not yet
          */
-        if (systemcfg->platform == PLATFORM_POWERMAC)
+        if (_machine == PLATFORM_POWERMAC)
                 return -ENODEV;
 
         /* fix up new node's linux_phandle field */
@@ -1999,9 +1989,11 @@ int prom_add_property(struct device_node* np, struct property* prop)
         *next = prop;
         write_unlock(&devtree_lock);
 
+#ifdef CONFIG_PROC_DEVICETREE
         /* try to add to proc as well if it was initialized */
         if (np->pde)
                 proc_device_tree_add_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
 
         return 0;
 }