13 files changed, 140 insertions, 77 deletions

diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index b3e95ff0dba0..ae1433da09b2 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -604,6 +604,76 @@ _GLOBAL(real_writeb)
 #endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
 
 /*
+ * SCOM access functions for 970 (FX only for now)
+ *
+ * unsigned long scom970_read(unsigned int address);
+ * void scom970_write(unsigned int address, unsigned long value);
+ *
+ * The address passed in is the 24 bits register address. This code
+ * is 970 specific and will not check the status bits, so you should
+ * know what you are doing.
+ */
+_GLOBAL(scom970_read)
+        /* interrupts off */
+        mfmsr   r4
+        ori     r0,r4,MSR_EE
+        xori    r0,r0,MSR_EE
+        mtmsrd  r0,1
+
+        /* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
+         * (including parity). On current CPUs they must be 0'd,
+         * and finally or in RW bit
+         */
+        rlwinm  r3,r3,8,0,15
+        ori     r3,r3,0x8000
+
+        /* do the actual scom read */
+        sync
+        mtspr   SPRN_SCOMC,r3
+        isync
+        mfspr   r3,SPRN_SCOMD
+        isync
+        mfspr   r0,SPRN_SCOMC
+        isync
+
+        /* XXX: fixup result on some buggy 970's (ouch ! we lost a bit, bah
+         * that's the best we can do). Not implemented yet as we don't use
+         * the scom on any of the bogus CPUs yet, but may have to be done
+         * ultimately
+         */
+
+        /* restore interrupts */
+        mtmsrd  r4,1
+        blr
+
+
+_GLOBAL(scom970_write)
+        /* interrupts off */
+        mfmsr   r5
+        ori     r0,r5,MSR_EE
+        xori    r0,r0,MSR_EE
+        mtmsrd  r0,1
+
+        /* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
+         * (including parity). On current CPUs they must be 0'd.
+         */
+
+        rlwinm  r3,r3,8,0,15
+
+        sync
+        mtspr   SPRN_SCOMD,r4      /* write data */
+        isync
+        mtspr   SPRN_SCOMC,r3      /* write command */
+        isync
+        mfspr   3,SPRN_SCOMC
+        isync
+
+        /* restore interrupts */
+        mtmsrd  r5,1
+        blr
+
+
+/*
  * Create a kernel thread
  *   kernel_thread(fn, arg, flags)
  */
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 7f64f0464d44..de69fb37c731 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -46,10 +46,10 @@
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/prom.h>
+#include <asm/machdep.h>
 #ifdef CONFIG_PPC64
 #include <asm/firmware.h>
 #include <asm/time.h>
-#include <asm/machdep.h>
 #endif
 
 extern unsigned long _get_SP(void);
@@ -203,10 +203,8 @@ int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
 
 int set_dabr(unsigned long dabr)
 {
-#ifdef CONFIG_PPC64
         if (ppc_md.set_dabr)
                 return ppc_md.set_dabr(dabr);
-#endif
 
         mtspr(SPRN_DABR, dabr);
         return 0;
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 3675ef4bac90..f645adb57534 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1974,14 +1974,29 @@ EXPORT_SYMBOL(get_property);
 /*
  * Add a property to a node
  */
-void prom_add_property(struct device_node* np, struct property* prop)
+int prom_add_property(struct device_node* np, struct property* prop)
 {
-        struct property **next = &np->properties;
+        struct property **next;
 
         prop->next = NULL;      
-        while (*next)
+        write_lock(&devtree_lock);
+        next = &np->properties;
+        while (*next) {
+                if (strcmp(prop->name, (*next)->name) == 0) {
+                        /* duplicate ! don't insert it */
+                        write_unlock(&devtree_lock);
+                        return -1;
+                }
                 next = &(*next)->next;
+        }
         *next = prop;
+        write_unlock(&devtree_lock);
+
+        /* try to add to proc as well if it was initialized */
+        if (np->pde)
+                proc_device_tree_add_prop(np->pde, prop);
+
+        return 0;
 }
 
 /* I quickly hacked that one, check against spec ! */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index c758b6624d7b..6dc33d19fc2a 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -403,19 +403,19 @@ static int __init prom_next_node(phandle *nodep)
         }
 }
 
-static int __init prom_getprop(phandle node, const char *pname,
+static int inline prom_getprop(phandle node, const char *pname,
                                void *value, size_t valuelen)
 {
         return call_prom("getprop", 4, 1, node, ADDR(pname),
                          (u32)(unsigned long) value, (u32) valuelen);
 }
 
-static int __init prom_getproplen(phandle node, const char *pname)
+static int inline prom_getproplen(phandle node, const char *pname)
 {
         return call_prom("getproplen", 2, 1, node, ADDR(pname));
 }
 
-static int __init prom_setprop(phandle node, const char *pname,
+static int inline prom_setprop(phandle node, const char *pname,
                                void *value, size_t valuelen)
 {
         return call_prom("setprop", 4, 1, node, ADDR(pname),
@@ -1408,8 +1408,9 @@ static int __init prom_find_machine_type(void)
         struct prom_t *_prom = &RELOC(prom);
         char compat[256];
         int len, i = 0;
+#ifdef CONFIG_PPC64
         phandle rtas;
-
+#endif
         len = prom_getprop(_prom->root, "compatible",
                            compat, sizeof(compat)-1);
         if (len > 0) {
@@ -1872,7 +1873,7 @@ static void __init fixup_device_tree(void)
         if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
             == PROM_ERROR)
                 return;
-        if (u3_rev != 0x35 && u3_rev != 0x37)
+        if (u3_rev < 0x35 || u3_rev > 0x39)
                 return;
         /* does it need fixup ? */
         if (prom_getproplen(i2c, "interrupts") > 0)
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index b7fc2d884950..9d4e07f6f1ec 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -17,6 +17,7 @@
 #include <linux/spinlock.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/delay.h>
 
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -83,7 +84,7 @@ void call_rtas_display_status_delay(unsigned char c)
                 while (width-- > 0)
                         call_rtas_display_status(' ');
                 width = 16;
-                udelay(500000);
+                mdelay(500);
                 pending_newline = 1;
         } else {
                 if (pending_newline) {
@@ -608,7 +609,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
         return 0;
 }
 
-#ifdef CONFIG_SMP
 /* This version can't take the spinlock, because it never returns */
 
 struct rtas_args rtas_stop_self_args = {
@@ -633,7 +633,6 @@ void rtas_stop_self(void)
 
         panic("Alas, I survived.\n");
 }
-#endif
 
 /*
  * Call early during boot, before mem init or bootmem, to retreive the RTAS
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index d43fa8c0e5ac..e22856ecb5a0 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -405,6 +405,46 @@ static int __init set_preferred_console(void)
 console_initcall(set_preferred_console);
 #endif /* CONFIG_PPC_MULTIPLATFORM */
 
+void __init check_for_initrd(void)
+{
+#ifdef CONFIG_BLK_DEV_INITRD
+        unsigned long *prop;
+
+        DBG(" -> check_for_initrd()\n");
+
+        if (of_chosen) {
+                prop = (unsigned long *)get_property(of_chosen,
+                                "linux,initrd-start", NULL);
+                if (prop != NULL) {
+                        initrd_start = (unsigned long)__va(*prop);
+                        prop = (unsigned long *)get_property(of_chosen,
+                                        "linux,initrd-end", NULL);
+                        if (prop != NULL) {
+                                initrd_end = (unsigned long)__va(*prop);
+                                initrd_below_start_ok = 1;
+                        } else
+                                initrd_start = 0;
+                }
+        }
+
+        /* If we were passed an initrd, set the ROOT_DEV properly if the values
+         * look sensible. If not, clear initrd reference.
+         */
+        if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
+            initrd_end > initrd_start)
+                ROOT_DEV = Root_RAM0;
+        else {
+                printk("Bogus initrd %08lx %08lx\n", initrd_start, initrd_end);
+                initrd_start = initrd_end = 0;
+        }
+
+        if (initrd_start)
+                printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
+
+        DBG(" <- check_for_initrd()\n");
+#endif /* CONFIG_BLK_DEV_INITRD */
+}
+
 #ifdef CONFIG_SMP
 
 /**
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index b45eedbb4b3a..3af2631e3fab 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -286,6 +286,7 @@ void __init setup_arch(char **cmdline_p)
         loops_per_jiffy = 500000000 / HZ;
 
         unflatten_device_tree();
+        check_for_initrd();
         finish_device_tree();
 
         smp_setup_cpu_maps();
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index b0994050024f..0471e843b6c5 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -41,7 +41,6 @@
 #include <asm/elf.h>
 #include <asm/machdep.h>
 #include <asm/paca.h>
-#include <asm/ppcdebug.h>
 #include <asm/time.h>
 #include <asm/cputable.h>
 #include <asm/sections.h>
@@ -60,6 +59,7 @@
 #include <asm/firmware.h>
 #include <asm/systemcfg.h>
 #include <asm/xmon.h>
+#include <asm/udbg.h>
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -244,12 +244,6 @@ void __init early_setup(unsigned long dt_ptr)
         DBG(" -> early_setup()\n");
 
         /*
-         * Fill the default DBG level (do we want to keep
-         * that old mecanism around forever ?)
-         */
-        ppcdbg_initialize();
-
-        /*
          * Do early initializations using the flattened device
          * tree, like retreiving the physical memory map or
          * calculating/retreiving the hash table size
@@ -401,43 +395,6 @@ static void __init initialize_cache_info(void)
         DBG(" <- initialize_cache_info()\n");
 }
 
-static void __init check_for_initrd(void)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
-        u64 *prop;
-
-        DBG(" -> check_for_initrd()\n");
-
-        if (of_chosen) {
-                prop = (u64 *)get_property(of_chosen,
-                                "linux,initrd-start", NULL);
-                if (prop != NULL) {
-                        initrd_start = (unsigned long)__va(*prop);
-                        prop = (u64 *)get_property(of_chosen,
-                                        "linux,initrd-end", NULL);
-                        if (prop != NULL) {
-                                initrd_end = (unsigned long)__va(*prop);
-                                initrd_below_start_ok = 1;
-                        } else
-                                initrd_start = 0;
-                }
-        }
-
-        /* If we were passed an initrd, set the ROOT_DEV properly if the values
-         * look sensible. If not, clear initrd reference.
-         */
-        if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
-            initrd_end > initrd_start)
-                ROOT_DEV = Root_RAM0;
-        else
-                initrd_start = initrd_end = 0;
-
-        if (initrd_start)
-                printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
-
-        DBG(" <- check_for_initrd()\n");
-#endif /* CONFIG_BLK_DEV_INITRD */
-}
 
 /*
  * Do some initial setup of the system.  The parameters are those which 
@@ -521,7 +478,6 @@ void __init setup_system(void)
 
         printk("-----------------------------------------------------\n");
         printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
-        printk("ppc64_debug_switch            = 0x%lx\n", ppc64_debug_switch);
         printk("ppc64_interrupt_controller    = 0x%ld\n", ppc64_interrupt_controller);
         printk("systemcfg                     = 0x%p\n", systemcfg);
         printk("systemcfg->platform           = 0x%x\n", systemcfg->platform);
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 876c57c11365..081d931eae48 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -44,7 +44,6 @@
 #include <asm/cacheflush.h>
 #ifdef CONFIG_PPC64
 #include "ppc32.h"
-#include <asm/ppcdebug.h>
 #include <asm/unistd.h>
 #include <asm/vdso.h>
 #else
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index ec9d0984b6a0..58194e150711 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -33,7 +33,6 @@
 #include <asm/ucontext.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
-#include <asm/ppcdebug.h>
 #include <asm/unistd.h>
 #include <asm/cacheflush.h>
 #include <asm/vdso.h>
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 1794a694a928..5c330c3366e4 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -40,7 +40,6 @@
 #include <asm/prom.h>
 #include <asm/smp.h>
 #include <asm/time.h>
-#include <asm/xmon.h>
 #include <asm/machdep.h>
 #include <asm/cputable.h>
 #include <asm/system.h>
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index b1c89bc4bf90..a6282b625b44 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -61,6 +61,7 @@
 #include <asm/prom.h>
 #include <asm/irq.h>
 #include <asm/div64.h>
+#include <asm/smp.h>
 #ifdef CONFIG_PPC64
 #include <asm/systemcfg.h>
 #include <asm/firmware.h>
@@ -119,10 +120,6 @@ static unsigned adjusting_time = 0;
 unsigned long ppc_proc_freq;
 unsigned long ppc_tb_freq;
 
-#ifdef CONFIG_PPC32     /* XXX for now */
-#define boot_cpuid      0
-#endif
-
 u64 tb_last_jiffy __cacheline_aligned_in_smp;
 unsigned long tb_last_stamp;
 
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 07e5ee40b870..32f215825e8d 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -39,7 +39,6 @@
 #include <asm/io.h>
 #include <asm/machdep.h>
 #include <asm/rtas.h>
-#include <asm/xmon.h>
 #include <asm/pmc.h>
 #ifdef CONFIG_PPC32
 #include <asm/reg.h>
@@ -748,22 +747,12 @@ static int check_bug_trap(struct pt_regs *regs)
                 return 0;
         if (bug->line & BUG_WARNING_TRAP) {
                 /* this is a WARN_ON rather than BUG/BUG_ON */
-#ifdef CONFIG_XMON
-                xmon_printf(KERN_ERR "Badness in %s at %s:%ld\n",
-                       bug->function, bug->file,
-                       bug->line & ~BUG_WARNING_TRAP);
-#endif /* CONFIG_XMON */                
                 printk(KERN_ERR "Badness in %s at %s:%ld\n",
                        bug->function, bug->file,
                        bug->line & ~BUG_WARNING_TRAP);
                 dump_stack();
                 return 1;
         }
-#ifdef CONFIG_XMON
-        xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
-               bug->function, bug->file, bug->line);
-        xmon(regs);
-#endif /* CONFIG_XMON */
         printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
                bug->function, bug->file, bug->line);