10 files changed, 115 insertions, 80 deletions

diff --git a/arch/ppc64/Kconfig b/arch/ppc64/Kconfig
index 2130cc315957..29552348e581 100644
--- a/arch/ppc64/Kconfig
+++ b/arch/ppc64/Kconfig
@@ -56,6 +56,7 @@ config PPC_STD_MMU
 # max order + 1
 config FORCE_MAX_ZONEORDER
         int
+        default "9" if PPC_64K_PAGES
         default "13"
 
 source "init/Kconfig"
@@ -173,6 +174,16 @@ config KEXEC
           support.  As of this writing the exact hardware interface is
           strongly in flux, so no good recommendation can be made.
 
+source "drivers/cpufreq/Kconfig"
+
+config CPU_FREQ_PMAC64
+        bool "Support for some Apple G5s"
+        depends on CPU_FREQ && PMAC_SMU && PPC64
+        select CPU_FREQ_TABLE
+        help
+          This adds support for frequency switching on Apple iMac G5,
+          and some of the more recent desktop G5 machines as well.
+
 config IBMVIO
         depends on PPC_PSERIES || PPC_ISERIES
         bool
diff --git a/arch/ppc64/Kconfig.debug b/arch/ppc64/Kconfig.debug
index f16a5030527b..b258c9314a1b 100644
--- a/arch/ppc64/Kconfig.debug
+++ b/arch/ppc64/Kconfig.debug
@@ -55,10 +55,6 @@ config XMON_DEFAULT
           xmon is normally disabled unless booted with 'xmon=on'.
           Use 'xmon=off' to disable xmon init during runtime.
 
-config PPCDBG
-        bool "Include PPCDBG realtime debugging"
-        depends on DEBUG_KERNEL
-
 config IRQSTACKS
         bool "Use separate kernel stacks when processing interrupts"
         help
diff --git a/arch/ppc64/kernel/idle.c b/arch/ppc64/kernel/idle.c
index 8abd2ad92832..8fec27469802 100644
--- a/arch/ppc64/kernel/idle.c
+++ b/arch/ppc64/kernel/idle.c
@@ -28,6 +28,7 @@
 #include <asm/time.h>
 #include <asm/systemcfg.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 extern void power4_idle(void);
 
diff --git a/arch/ppc64/kernel/machine_kexec.c b/arch/ppc64/kernel/machine_kexec.c
index ff8679f260f3..07ea03598c00 100644
--- a/arch/ppc64/kernel/machine_kexec.c
+++ b/arch/ppc64/kernel/machine_kexec.c
@@ -24,6 +24,7 @@
 #include <asm/mmu.h>
 #include <asm/sections.h>       /* _end */
 #include <asm/prom.h>
+#include <asm/smp.h>
 
 #define HASH_GROUP_SIZE 0x80    /* size of each hash group, asm/mmu.h */
 
diff --git a/arch/ppc64/kernel/misc.S b/arch/ppc64/kernel/misc.S
index 077507ffbab8..914632ec587d 100644
--- a/arch/ppc64/kernel/misc.S
+++ b/arch/ppc64/kernel/misc.S
@@ -560,7 +560,7 @@ _GLOBAL(real_readb)
         isync
         blr
 
-        /*
+/*
  * Do an IO access in real mode
  */
 _GLOBAL(real_writeb)
@@ -593,6 +593,76 @@ _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/ppc64/kernel/pci.c b/arch/ppc64/kernel/pci.c
index 3d2106b022a1..30247ff74972 100644
--- a/arch/ppc64/kernel/pci.c
+++ b/arch/ppc64/kernel/pci.c
@@ -295,8 +295,8 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev)
         }
 }
 
-static struct pci_dev *of_create_pci_dev(struct device_node *node,
-                                         struct pci_bus *bus, int devfn)
+struct pci_dev *of_create_pci_dev(struct device_node *node,
+                                 struct pci_bus *bus, int devfn)
 {
         struct pci_dev *dev;
         const char *type;
@@ -354,10 +354,9 @@ static struct pci_dev *of_create_pci_dev(struct device_node *node,
 
         return dev;
 }
+EXPORT_SYMBOL(of_create_pci_dev);
 
-static void of_scan_pci_bridge(struct device_node *node, struct pci_dev *dev);
-
-static void __devinit of_scan_bus(struct device_node *node,
+void __devinit of_scan_bus(struct device_node *node,
                                   struct pci_bus *bus)
 {
         struct device_node *child = NULL;
@@ -381,9 +380,10 @@ static void __devinit of_scan_bus(struct device_node *node,
 
         do_bus_setup(bus);
 }
+EXPORT_SYMBOL(of_scan_bus);
 
-static void __devinit of_scan_pci_bridge(struct device_node *node,
-                                         struct pci_dev *dev)
+void __devinit of_scan_pci_bridge(struct device_node *node,
+                                struct pci_dev *dev)
 {
         struct pci_bus *bus;
         u32 *busrange, *ranges;
@@ -464,9 +464,10 @@ static void __devinit of_scan_pci_bridge(struct device_node *node,
         else if (mode == PCI_PROBE_NORMAL)
                 pci_scan_child_bus(bus);
 }
+EXPORT_SYMBOL(of_scan_pci_bridge);
 #endif /* CONFIG_PPC_MULTIPLATFORM */
 
-static void __devinit scan_phb(struct pci_controller *hose)
+void __devinit scan_phb(struct pci_controller *hose)
 {
         struct pci_bus *bus;
         struct device_node *node = hose->arch_data;
diff --git a/arch/ppc64/kernel/prom.c b/arch/ppc64/kernel/prom.c
index dece31e58bc4..3402fbee62c7 100644
--- a/arch/ppc64/kernel/prom.c
+++ b/arch/ppc64/kernel/prom.c
@@ -31,6 +31,7 @@
 #include <linux/initrd.h>
 #include <linux/bitops.h>
 #include <linux/module.h>
+#include <linux/module.h>
 
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -46,7 +47,6 @@
 #include <asm/pgtable.h>
 #include <asm/pci.h>
 #include <asm/iommu.h>
-#include <asm/ppcdebug.h>
 #include <asm/btext.h>
 #include <asm/sections.h>
 #include <asm/machdep.h>
@@ -1866,17 +1866,32 @@ get_property(struct device_node *np, const char *name, int *lenp)
 EXPORT_SYMBOL(get_property);
 
 /*
- * Add a property to a node
+ * Add a property to a node.
  */
-void
+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;
 }
 
 #if 0
diff --git a/arch/ppc64/kernel/prom_init.c b/arch/ppc64/kernel/prom_init.c
index a4bbca6dbb8b..e4c880dab997 100644
--- a/arch/ppc64/kernel/prom_init.c
+++ b/arch/ppc64/kernel/prom_init.c
@@ -44,7 +44,6 @@
 #include <asm/pgtable.h>
 #include <asm/pci.h>
 #include <asm/iommu.h>
-#include <asm/ppcdebug.h>
 #include <asm/btext.h>
 #include <asm/sections.h>
 #include <asm/machdep.h>
@@ -1825,7 +1824,7 @@ 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/ppc64/kernel/rtas_pci.c b/arch/ppc64/kernel/rtas_pci.c
index 3ad15c90fbbd..3c3f19192fcc 100644
--- a/arch/ppc64/kernel/rtas_pci.c
+++ b/arch/ppc64/kernel/rtas_pci.c
@@ -440,7 +440,6 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
         struct device_node *root = of_find_node_by_path("/");
         unsigned int root_size_cells = 0;
         struct pci_controller *phb;
-        struct pci_bus *bus;
         int primary;
 
         root_size_cells = prom_n_size_cells(root);
@@ -456,10 +455,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
         of_node_put(root);
 
         pci_devs_phb_init_dynamic(phb);
-        phb->last_busno = 0xff;
-        bus = pci_scan_bus(phb->first_busno, phb->ops, phb->arch_data);
-        phb->bus = bus;
-        phb->last_busno = bus->subordinate;
+        scan_phb(phb);
 
         return phb;
 }
diff --git a/arch/ppc64/kernel/udbg.c b/arch/ppc64/kernel/udbg.c
index d49c3613c8ec..0d878e72fc44 100644
--- a/arch/ppc64/kernel/udbg.c
+++ b/arch/ppc64/kernel/udbg.c
@@ -10,12 +10,10 @@
  */
 
 #include <stdarg.h>
-#define WANT_PPCDBG_TAB /* Only defined here */
 #include <linux/config.h>
 #include <linux/types.h>
 #include <linux/sched.h>
 #include <linux/console.h>
-#include <asm/ppcdebug.h>
 #include <asm/processor.h>
 
 void (*udbg_putc)(unsigned char c);
@@ -89,59 +87,6 @@ void udbg_printf(const char *fmt, ...)
         va_end(args);
 }
 
-/* PPCDBG stuff */
-
-u64 ppc64_debug_switch;
-
-/* Special print used by PPCDBG() macro */
-void udbg_ppcdbg(unsigned long debug_flags, const char *fmt, ...)
-{
-        unsigned long active_debugs = debug_flags & ppc64_debug_switch;
-
-        if (active_debugs) {
-                va_list ap;
-                unsigned char buf[UDBG_BUFSIZE];
-                unsigned long i, len = 0;
-
-                for (i=0; i < PPCDBG_NUM_FLAGS; i++) {
-                        if (((1U << i) & active_debugs) && 
-                            trace_names[i]) {
-                                len += strlen(trace_names[i]); 
-                                udbg_puts(trace_names[i]);
-                                break;
-                        }
-                }
-
-                snprintf(buf, UDBG_BUFSIZE, " [%s]: ", current->comm);
-                len += strlen(buf); 
-                udbg_puts(buf);
-
-                while (len < 18) {
-                        udbg_puts(" ");
-                        len++;
-                }
-
-                va_start(ap, fmt);
-                vsnprintf(buf, UDBG_BUFSIZE, fmt, ap);
-                udbg_puts(buf);
-                va_end(ap);
-        }
-}
-
-unsigned long udbg_ifdebug(unsigned long flags)
-{
-        return (flags & ppc64_debug_switch);
-}
-
-/*
- * Initialize the PPCDBG state.  Called before relocation has been enabled.
- */
-void __init ppcdbg_initialize(void)
-{
-        ppc64_debug_switch = PPC_DEBUG_DEFAULT; /* | PPCDBG_BUSWALK | */
-        /* PPCDBG_PHBINIT | PPCDBG_MM | PPCDBG_MMINIT | PPCDBG_TCEINIT | PPCDBG_TCE */;
-}
-
 /*
  * Early boot console based on udbg
  */