5 files changed, 22 insertions, 40 deletions

diff --git a/arch/mips/sgi-ip27/ip27-berr.c b/arch/mips/sgi-ip27/ip27-berr.c
index 123141ab21a..7d05e68fdc7 100644
--- a/arch/mips/sgi-ip27/ip27-berr.c
+++ b/arch/mips/sgi-ip27/ip27-berr.c
@@ -21,8 +21,6 @@
 #include <asm/traps.h>
 #include <asm/uaccess.h>
 
-extern void dump_tlb_all(void);
-
 static void dump_hub_information(unsigned long errst0, unsigned long errst1)
 {
 	static char *err_type[2][8] = {
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 74158d34963..681b593071c 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -47,6 +47,9 @@ cnodeid_t	cpuid_to_compact_node[MAXCPUS];
 
 EXPORT_SYMBOL(nasid_to_compact_node);
 
+struct cpuinfo_ip27 sn_cpu_info[NR_CPUS];
+EXPORT_SYMBOL_GPL(sn_cpu_info);
+
 extern void pcibr_setup(cnodeid_t);
 
 extern void xtalk_probe_node(cnodeid_t nid);
@@ -191,7 +194,6 @@ static inline void ioc3_eth_init(void)
 	ioc3->eier = 0;
 }
 
-extern void ip27_time_init(void);
 extern void ip27_reboot_setup(void);
 
 void __init plat_mem_setup(void)
@@ -238,6 +240,4 @@ void __init plat_mem_setup(void)
 	per_cpu_init();
 
 	set_io_port_base(IO_BASE);
-
-	board_time_init = ip27_time_init;
 }
diff --git a/arch/mips/sgi-ip27/ip27-irq.c b/arch/mips/sgi-ip27/ip27-irq.c
index ba8e0794630..856649cf9f1 100644
--- a/arch/mips/sgi-ip27/ip27-irq.c
+++ b/arch/mips/sgi-ip27/ip27-irq.c
@@ -207,11 +207,9 @@ static int intr_connect_level(int cpu, int bit)
 {
 	nasid_t nasid = COMPACT_TO_NASID_NODEID(cpu_to_node(cpu));
 	struct slice_data *si = cpu_data[cpu].data;
-	unsigned long flags;
 
 	set_bit(bit, si->irq_enable_mask);
 
-	local_irq_save(flags);
 	if (!cputoslice(cpu)) {
 		REMOTE_HUB_S(nasid, PI_INT_MASK0_A, si->irq_enable_mask[0]);
 		REMOTE_HUB_S(nasid, PI_INT_MASK1_A, si->irq_enable_mask[1]);
@@ -219,7 +217,6 @@ static int intr_connect_level(int cpu, int bit)
 		REMOTE_HUB_S(nasid, PI_INT_MASK0_B, si->irq_enable_mask[0]);
 		REMOTE_HUB_S(nasid, PI_INT_MASK1_B, si->irq_enable_mask[1]);
 	}
-	local_irq_restore(flags);
 
 	return 0;
 }
@@ -285,6 +282,8 @@ static unsigned int startup_bridge_irq(unsigned int irq)
 
         bridge->b_wid_tflush;
 
+	intr_connect_level(cpu, swlevel);
+
         return 0;       /* Never anything pending.  */
 }
 
@@ -292,7 +291,6 @@ static unsigned int startup_bridge_irq(unsigned int irq)
 static void shutdown_bridge_irq(unsigned int irq)
 {
 	struct bridge_controller *bc = IRQ_TO_BRIDGE(irq);
-	struct hub_data *hub = hub_data(cpu_to_node(bc->irq_cpu));
 	bridge_t *bridge = bc->base;
 	int pin, swlevel;
 	cpuid_t cpu;
@@ -307,8 +305,6 @@ static void shutdown_bridge_irq(unsigned int irq)
 	swlevel = find_level(&cpu, irq);
 	intr_disconnect_level(cpu, swlevel);
 
-	__clear_bit(swlevel, hub->irq_alloc_mask);
-
 	bridge->b_int_enable &= ~(1 << pin);
 	bridge->b_wid_tflush;
 }
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index 08e79141b47..a70656d4219 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -33,7 +33,7 @@ static void alloc_cpupda(cpuid_t cpu, int cpunum)
 	nasid_t nasid = COMPACT_TO_NASID_NODEID(node);
 
 	cputonasid(cpunum) = nasid;
-	cpu_data[cpunum].p_nodeid = node;
+	sn_cpu_info[cpunum].p_nodeid = node;
 	cputoslice(cpunum) = get_cpu_slice(cpu);
 }
 
@@ -171,12 +171,12 @@ void __init plat_prepare_cpus(unsigned int max_cpus)
  * set sp to the kernel stack of the newly created idle process, gp to the proc
  * struct so that current_thread_info() will work.
  */
-void __init prom_boot_secondary(int cpu, struct task_struct *idle)
+void __cpuinit prom_boot_secondary(int cpu, struct task_struct *idle)
 {
 	unsigned long gp = (unsigned long)task_thread_info(idle);
 	unsigned long sp = __KSTK_TOS(idle);
 
-	LAUNCH_SLAVE(cputonasid(cpu),cputoslice(cpu),
+	LAUNCH_SLAVE(cputonasid(cpu), cputoslice(cpu),
 		(launch_proc_t)MAPPED_KERN_RW_TO_K0(smp_bootstrap),
 		0, (void *) sp, (void *) gp);
 }
@@ -191,7 +191,7 @@ void __init prom_cpus_done(void)
 {
 }
 
-void prom_smp_finish(void)
+void __cpuinit prom_smp_finish(void)
 {
 }
 
diff --git a/arch/mips/sgi-ip27/ip27-timer.c b/arch/mips/sgi-ip27/ip27-timer.c
index 8c3c78c63cc..b7b3479b6bc 100644
--- a/arch/mips/sgi-ip27/ip27-timer.c
+++ b/arch/mips/sgi-ip27/ip27-timer.c
@@ -40,7 +40,6 @@
 #define TICK_SIZE (tick_nsec / 1000)
 
 static unsigned long ct_cur[NR_CPUS];	/* What counter should be at next timer irq */
-static long last_rtc_update;		/* Last time the rtc clock got updated */
 
 #if 0
 static int set_rtc_mmss(unsigned long nowtime)
@@ -113,23 +112,6 @@ again:
 
 	update_process_times(user_mode(get_irq_regs()));
 
-	/*
-	 * If we have an externally synchronized Linux clock, then update
-	 * RTC clock accordingly every ~11 minutes. Set_rtc_mmss() has to be
-	 * called as close as possible to when a second starts.
-	 */
-	if (ntp_synced() &&
-	    xtime.tv_sec > last_rtc_update + 660 &&
-	    (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 &&
-	    (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) {
-		if (rtc_mips_set_time(xtime.tv_sec) == 0) {
-			last_rtc_update = xtime.tv_sec;
-		} else {
-			last_rtc_update = xtime.tv_sec - 600;
-			/* do it again in 60 s */
-		}
-	}
-
 	write_sequnlock(&xtime_lock);
 	irq_exit();
 }
@@ -141,7 +123,7 @@ again:
 #include <asm/sn/sn0/hubio.h>
 #include <asm/pci/bridge.h>
 
-static __init unsigned long get_m48t35_time(void)
+unsigned long read_persistent_clock(void)
 {
         unsigned int year, month, date, hour, min, sec;
 	struct m48t35_rtc *rtc;
@@ -218,17 +200,23 @@ void __init plat_timer_setup(struct irqaction *irq)
 	setup_irq(irqno, &rt_irqaction);
 }
 
-static cycle_t ip27_hpt_read(void)
+static cycle_t hub_rt_read(void)
 {
 	return REMOTE_HUB_L(cputonasid(0), PI_RT_COUNT);
 }
 
-void __init ip27_time_init(void)
+struct clocksource ht_rt_clocksource = {
+	.name	= "HUB",
+	.rating	= 200,
+	.read	= hub_rt_read,
+	.mask	= CLOCKSOURCE_MASK(52),
+	.shift	= 32,
+	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+void __init plat_time_init(void)
 {
-	clocksource_mips.read = ip27_hpt_read;
-	mips_hpt_frequency = CYCLES_PER_SEC;
-	xtime.tv_sec = get_m48t35_time();
-	xtime.tv_nsec = 0;
+	clocksource_register(&ht_rt_clocksource);
 }
 
 void __init cpu_time_init(void)