Linux-libre 4.2-gnu

6 files changed, 133 insertions, 465 deletions

diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 70b1eff47..6ee5959a8 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -11,7 +11,6 @@ obj-$(CONFIG_SHARP_LOCOMO)	+= locomo.o
 obj-$(CONFIG_SHARP_PARAM)	+= sharpsl_param.o
 obj-$(CONFIG_SHARP_SCOOP)	+= scoop.o
 obj-$(CONFIG_PCI_HOST_ITE8152)  += it8152.o
-obj-$(CONFIG_ARM_TIMER_SP804)	+= timer-sp.o
 obj-$(CONFIG_MCPM)		+= mcpm_head.o mcpm_entry.o mcpm_platsmp.o vlock.o
 CFLAGS_REMOVE_mcpm_entry.o	= -pg
 AFLAGS_mcpm_head.o		:= -march=armv7-a
diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index 5662a8726..873dbfcc7 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -1350,6 +1350,9 @@ void edma_stop(unsigned channel)
 		edma_shadow0_write_array(ctlr, SH_SECR, j, mask);
 		edma_write_array(ctlr, EDMA_EMCR, j, mask);
 
+		/* clear possibly pending completion interrupt */
+		edma_shadow0_write_array(ctlr, SH_ICR, j, mask);
+
 		pr_debug("EDMA: EER%d %08x\n", j,
 				edma_shadow0_read_array(ctlr, SH_EER, j));
 
diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 5f8a52ac7..a923524d1 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -20,6 +20,126 @@
 #include <asm/cputype.h>
 #include <asm/suspend.h>
 
+/*
+ * The public API for this code is documented in arch/arm/include/asm/mcpm.h.
+ * For a comprehensive description of the main algorithm used here, please
+ * see Documentation/arm/cluster-pm-race-avoidance.txt.
+ */
+
+struct sync_struct mcpm_sync;
+
+/*
+ * __mcpm_cpu_going_down: Indicates that the cpu is being torn down.
+ *    This must be called at the point of committing to teardown of a CPU.
+ *    The CPU cache (SCTRL.C bit) is expected to still be active.
+ */
+static void __mcpm_cpu_going_down(unsigned int cpu, unsigned int cluster)
+{
+	mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_GOING_DOWN;
+	sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu);
+}
+
+/*
+ * __mcpm_cpu_down: Indicates that cpu teardown is complete and that the
+ *    cluster can be torn down without disrupting this CPU.
+ *    To avoid deadlocks, this must be called before a CPU is powered down.
+ *    The CPU cache (SCTRL.C bit) is expected to be off.
+ *    However L2 cache might or might not be active.
+ */
+static void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster)
+{
+	dmb();
+	mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_DOWN;
+	sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu);
+	sev();
+}
+
+/*
+ * __mcpm_outbound_leave_critical: Leave the cluster teardown critical section.
+ * @state: the final state of the cluster:
+ *     CLUSTER_UP: no destructive teardown was done and the cluster has been
+ *         restored to the previous state (CPU cache still active); or
+ *     CLUSTER_DOWN: the cluster has been torn-down, ready for power-off
+ *         (CPU cache disabled, L2 cache either enabled or disabled).
+ */
+static void __mcpm_outbound_leave_critical(unsigned int cluster, int state)
+{
+	dmb();
+	mcpm_sync.clusters[cluster].cluster = state;
+	sync_cache_w(&mcpm_sync.clusters[cluster].cluster);
+	sev();
+}
+
+/*
+ * __mcpm_outbound_enter_critical: Enter the cluster teardown critical section.
+ * This function should be called by the last man, after local CPU teardown
+ * is complete.  CPU cache expected to be active.
+ *
+ * Returns:
+ *     false: the critical section was not entered because an inbound CPU was
+ *         observed, or the cluster is already being set up;
+ *     true: the critical section was entered: it is now safe to tear down the
+ *         cluster.
+ */
+static bool __mcpm_outbound_enter_critical(unsigned int cpu, unsigned int cluster)
+{
+	unsigned int i;
+	struct mcpm_sync_struct *c = &mcpm_sync.clusters[cluster];
+
+	/* Warn inbound CPUs that the cluster is being torn down: */
+	c->cluster = CLUSTER_GOING_DOWN;
+	sync_cache_w(&c->cluster);
+
+	/* Back out if the inbound cluster is already in the critical region: */
+	sync_cache_r(&c->inbound);
+	if (c->inbound == INBOUND_COMING_UP)
+		goto abort;
+
+	/*
+	 * Wait for all CPUs to get out of the GOING_DOWN state, so that local
+	 * teardown is complete on each CPU before tearing down the cluster.
+	 *
+	 * If any CPU has been woken up again from the DOWN state, then we
+	 * shouldn't be taking the cluster down at all: abort in that case.
+	 */
+	sync_cache_r(&c->cpus);
+	for (i = 0; i < MAX_CPUS_PER_CLUSTER; i++) {
+		int cpustate;
+
+		if (i == cpu)
+			continue;
+
+		while (1) {
+			cpustate = c->cpus[i].cpu;
+			if (cpustate != CPU_GOING_DOWN)
+				break;
+
+			wfe();
+			sync_cache_r(&c->cpus[i].cpu);
+		}
+
+		switch (cpustate) {
+		case CPU_DOWN:
+			continue;
+
+		default:
+			goto abort;
+		}
+	}
+
+	return true;
+
+abort:
+	__mcpm_outbound_leave_critical(cluster, CLUSTER_UP);
+	return false;
+}
+
+static int __mcpm_cluster_state(unsigned int cluster)
+{
+	sync_cache_r(&mcpm_sync.clusters[cluster].cluster);
+	return mcpm_sync.clusters[cluster].cluster;
+}
+
 extern unsigned long mcpm_entry_vectors[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER];
 
 void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
@@ -78,16 +198,11 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster)
 	bool cpu_is_down, cluster_is_down;
 	int ret = 0;
 
+	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
 	if (!platform_ops)
 		return -EUNATCH; /* try not to shadow power_up errors */
 	might_sleep();
 
-	/* backward compatibility callback */
-	if (platform_ops->power_up)
-		return platform_ops->power_up(cpu, cluster);
-
-	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
-
 	/*
 	 * Since this is called with IRQs enabled, and no arch_spin_lock_irq
 	 * variant exists, we need to disable IRQs manually here.
@@ -128,29 +243,17 @@ void mcpm_cpu_power_down(void)
 	bool cpu_going_down, last_man;
 	phys_reset_t phys_reset;
 
+	mpidr = read_cpuid_mpidr();
+	cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
 	if (WARN_ON_ONCE(!platform_ops))
 	       return;
 	BUG_ON(!irqs_disabled());
 
-	/*
-	 * Do this before calling into the power_down method,
-	 * as it might not always be safe to do afterwards.
-	 */
 	setup_mm_for_reboot();
 
-	/* backward compatibility callback */
-	if (platform_ops->power_down) {
-		platform_ops->power_down();
-		goto not_dead;
-	}
-
-	mpidr = read_cpuid_mpidr();
-	cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-	cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
-
 	__mcpm_cpu_going_down(cpu, cluster);
-
 	arch_spin_lock(&mcpm_lock);
 	BUG_ON(__mcpm_cluster_state(cluster) != CLUSTER_UP);
 
@@ -187,7 +290,6 @@ void mcpm_cpu_power_down(void)
 	if (cpu_going_down)
 		wfi();
 
-not_dead:
 	/*
 	 * It is possible for a power_up request to happen concurrently
 	 * with a power_down request for the same CPU. In this case the
@@ -219,22 +321,11 @@ int mcpm_wait_for_cpu_powerdown(unsigned int cpu, unsigned int cluster)
 	return ret;
 }
 
-void mcpm_cpu_suspend(u64 expected_residency)
+void mcpm_cpu_suspend(void)
 {
 	if (WARN_ON_ONCE(!platform_ops))
 		return;
 
-	/* backward compatibility callback */
-	if (platform_ops->suspend) {
-		phys_reset_t phys_reset;
-		BUG_ON(!irqs_disabled());
-		setup_mm_for_reboot();
-		platform_ops->suspend(expected_residency);
-		phys_reset = (phys_reset_t)(unsigned long)virt_to_phys(cpu_reset);
-		phys_reset(virt_to_phys(mcpm_entry_point));
-		BUG();
-	}
-
 	/* Some platforms might have to enable special resume modes, etc. */
 	if (platform_ops->cpu_suspend_prepare) {
 		unsigned int mpidr = read_cpuid_mpidr();
@@ -256,12 +347,6 @@ int mcpm_cpu_powered_up(void)
 	if (!platform_ops)
 		return -EUNATCH;
 
-	/* backward compatibility callback */
-	if (platform_ops->powered_up) {
-		platform_ops->powered_up();
-		return 0;
-	}
-
 	mpidr = read_cpuid_mpidr();
 	cpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
 	cluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
@@ -334,120 +419,6 @@ int __init mcpm_loopback(void (*cache_disable)(void))
 
 #endif
 
-struct sync_struct mcpm_sync;
-
-/*
- * __mcpm_cpu_going_down: Indicates that the cpu is being torn down.
- *    This must be called at the point of committing to teardown of a CPU.
- *    The CPU cache (SCTRL.C bit) is expected to still be active.
- */
-void __mcpm_cpu_going_down(unsigned int cpu, unsigned int cluster)
-{
-	mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_GOING_DOWN;
-	sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu);
-}
-
-/*
- * __mcpm_cpu_down: Indicates that cpu teardown is complete and that the
- *    cluster can be torn down without disrupting this CPU.
- *    To avoid deadlocks, this must be called before a CPU is powered down.
- *    The CPU cache (SCTRL.C bit) is expected to be off.
- *    However L2 cache might or might not be active.
- */
-void __mcpm_cpu_down(unsigned int cpu, unsigned int cluster)
-{
-	dmb();
-	mcpm_sync.clusters[cluster].cpus[cpu].cpu = CPU_DOWN;
-	sync_cache_w(&mcpm_sync.clusters[cluster].cpus[cpu].cpu);
-	sev();
-}
-
-/*
- * __mcpm_outbound_leave_critical: Leave the cluster teardown critical section.
- * @state: the final state of the cluster:
- *     CLUSTER_UP: no destructive teardown was done and the cluster has been
- *         restored to the previous state (CPU cache still active); or
- *     CLUSTER_DOWN: the cluster has been torn-down, ready for power-off
- *         (CPU cache disabled, L2 cache either enabled or disabled).
- */
-void __mcpm_outbound_leave_critical(unsigned int cluster, int state)
-{
-	dmb();
-	mcpm_sync.clusters[cluster].cluster = state;
-	sync_cache_w(&mcpm_sync.clusters[cluster].cluster);
-	sev();
-}
-
-/*
- * __mcpm_outbound_enter_critical: Enter the cluster teardown critical section.
- * This function should be called by the last man, after local CPU teardown
- * is complete.  CPU cache expected to be active.
- *
- * Returns:
- *     false: the critical section was not entered because an inbound CPU was
- *         observed, or the cluster is already being set up;
- *     true: the critical section was entered: it is now safe to tear down the
- *         cluster.
- */
-bool __mcpm_outbound_enter_critical(unsigned int cpu, unsigned int cluster)
-{
-	unsigned int i;
-	struct mcpm_sync_struct *c = &mcpm_sync.clusters[cluster];
-
-	/* Warn inbound CPUs that the cluster is being torn down: */
-	c->cluster = CLUSTER_GOING_DOWN;
-	sync_cache_w(&c->cluster);
-
-	/* Back out if the inbound cluster is already in the critical region: */
-	sync_cache_r(&c->inbound);
-	if (c->inbound == INBOUND_COMING_UP)
-		goto abort;
-
-	/*
-	 * Wait for all CPUs to get out of the GOING_DOWN state, so that local
-	 * teardown is complete on each CPU before tearing down the cluster.
-	 *
-	 * If any CPU has been woken up again from the DOWN state, then we
-	 * shouldn't be taking the cluster down at all: abort in that case.
-	 */
-	sync_cache_r(&c->cpus);
-	for (i = 0; i < MAX_CPUS_PER_CLUSTER; i++) {
-		int cpustate;
-
-		if (i == cpu)
-			continue;
-
-		while (1) {
-			cpustate = c->cpus[i].cpu;
-			if (cpustate != CPU_GOING_DOWN)
-				break;
-
-			wfe();
-			sync_cache_r(&c->cpus[i].cpu);
-		}
-
-		switch (cpustate) {
-		case CPU_DOWN:
-			continue;
-
-		default:
-			goto abort;
-		}
-	}
-
-	return true;
-
-abort:
-	__mcpm_outbound_leave_critical(cluster, CLUSTER_UP);
-	return false;
-}
-
-int __mcpm_cluster_state(unsigned int cluster)
-{
-	sync_cache_r(&mcpm_sync.clusters[cluster].cluster);
-	return mcpm_sync.clusters[cluster].cluster;
-}
-
 extern unsigned long mcpm_power_up_setup_phys;
 
 int __init mcpm_sync_init(
diff --git a/arch/arm/common/mcpm_head.S b/arch/arm/common/mcpm_head.S
index e02db4b81..08b3bb9bc 100644
--- a/arch/arm/common/mcpm_head.S
+++ b/arch/arm/common/mcpm_head.S
@@ -49,7 +49,7 @@
 ENTRY(mcpm_entry_point)
 
  ARM_BE8(setend        be)
- THUMB(	adr	r12, BSYM(1f)	)
+ THUMB(	badr	r12, 1f		)
  THUMB(	bx	r12		)
  THUMB(	.thumb			)
 1:
diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c
index 5cc779c8e..93ee70dbb 100644
--- a/arch/arm/common/sa1111.c
+++ b/arch/arm/common/sa1111.c
@@ -501,8 +501,8 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base)
 	 * Register SA1111 interrupt
 	 */
 	irq_set_irq_type(sachip->irq, IRQ_TYPE_EDGE_RISING);
-	irq_set_handler_data(sachip->irq, sachip);
-	irq_set_chained_handler(sachip->irq, sa1111_irq_handler);
+	irq_set_chained_handler_and_data(sachip->irq, sa1111_irq_handler,
+					 sachip);
 
 	dev_info(sachip->dev, "Providing IRQ%u-%u\n",
 		sachip->irq_base, sachip->irq_base + SA1111_IRQ_NR - 1);
@@ -836,8 +836,7 @@ static void __sa1111_remove(struct sa1111 *sachip)
 	clk_unprepare(sachip->clk);
 
 	if (sachip->irq != NO_IRQ) {
-		irq_set_chained_handler(sachip->irq, NULL);
-		irq_set_handler_data(sachip->irq, NULL);
+		irq_set_chained_handler_and_data(sachip->irq, NULL, NULL);
 		irq_free_descs(sachip->irq_base, SA1111_IRQ_NR);
 
 		release_mem_region(sachip->phys + SA1111_INTC, 512);
diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c
deleted file mode 100644
index 192113247..000000000
--- a/arch/arm/common/timer-sp.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- *  linux/arch/arm/common/timer-sp.c
- *
- *  Copyright (C) 1999 - 2003 ARM Limited
- *  Copyright (C) 2000 Deep Blue Solutions Ltd
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-#include <linux/clk.h>
-#include <linux/clocksource.h>
-#include <linux/clockchips.h>
-#include <linux/err.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/sched_clock.h>
-
-#include <asm/hardware/arm_timer.h>
-#include <asm/hardware/timer-sp.h>
-
-static long __init sp804_get_clock_rate(struct clk *clk)
-{
-	long rate;
-	int err;
-
-	err = clk_prepare(clk);
-	if (err) {
-		pr_err("sp804: clock failed to prepare: %d\n", err);
-		clk_put(clk);
-		return err;
-	}
-
-	err = clk_enable(clk);
-	if (err) {
-		pr_err("sp804: clock failed to enable: %d\n", err);
-		clk_unprepare(clk);
-		clk_put(clk);
-		return err;
-	}
-
-	rate = clk_get_rate(clk);
-	if (rate < 0) {
-		pr_err("sp804: clock failed to get rate: %ld\n", rate);
-		clk_disable(clk);
-		clk_unprepare(clk);
-		clk_put(clk);
-	}
-
-	return rate;
-}
-
-static void __iomem *sched_clock_base;
-
-static u64 notrace sp804_read(void)
-{
-	return ~readl_relaxed(sched_clock_base + TIMER_VALUE);
-}
-
-void __init __sp804_clocksource_and_sched_clock_init(void __iomem *base,
-						     const char *name,
-						     struct clk *clk,
-						     int use_sched_clock)
-{
-	long rate;
-
-	if (!clk) {
-		clk = clk_get_sys("sp804", name);
-		if (IS_ERR(clk)) {
-			pr_err("sp804: clock not found: %d\n",
-			       (int)PTR_ERR(clk));
-			return;
-		}
-	}
-
-	rate = sp804_get_clock_rate(clk);
-
-	if (rate < 0)
-		return;
-
-	/* setup timer 0 as free-running clocksource */
-	writel(0, base + TIMER_CTRL);
-	writel(0xffffffff, base + TIMER_LOAD);
-	writel(0xffffffff, base + TIMER_VALUE);
-	writel(TIMER_CTRL_32BIT | TIMER_CTRL_ENABLE | TIMER_CTRL_PERIODIC,
-		base + TIMER_CTRL);
-
-	clocksource_mmio_init(base + TIMER_VALUE, name,
-		rate, 200, 32, clocksource_mmio_readl_down);
-
-	if (use_sched_clock) {
-		sched_clock_base = base;
-		sched_clock_register(sp804_read, 32, rate);
-	}
-}
-
-
-static void __iomem *clkevt_base;
-static unsigned long clkevt_reload;
-
-/*
- * IRQ handler for the timer
- */
-static irqreturn_t sp804_timer_interrupt(int irq, void *dev_id)
-{
-	struct clock_event_device *evt = dev_id;
-
-	/* clear the interrupt */
-	writel(1, clkevt_base + TIMER_INTCLR);
-
-	evt->event_handler(evt);
-
-	return IRQ_HANDLED;
-}
-
-static void sp804_set_mode(enum clock_event_mode mode,
-	struct clock_event_device *evt)
-{
-	unsigned long ctrl = TIMER_CTRL_32BIT | TIMER_CTRL_IE;
-
-	writel(ctrl, clkevt_base + TIMER_CTRL);
-
-	switch (mode) {
-	case CLOCK_EVT_MODE_PERIODIC:
-		writel(clkevt_reload, clkevt_base + TIMER_LOAD);
-		ctrl |= TIMER_CTRL_PERIODIC | TIMER_CTRL_ENABLE;
-		break;
-
-	case CLOCK_EVT_MODE_ONESHOT:
-		/* period set, and timer enabled in 'next_event' hook */
-		ctrl |= TIMER_CTRL_ONESHOT;
-		break;
-
-	case CLOCK_EVT_MODE_UNUSED:
-	case CLOCK_EVT_MODE_SHUTDOWN:
-	default:
-		break;
-	}
-
-	writel(ctrl, clkevt_base + TIMER_CTRL);
-}
-
-static int sp804_set_next_event(unsigned long next,
-	struct clock_event_device *evt)
-{
-	unsigned long ctrl = readl(clkevt_base + TIMER_CTRL);
-
-	writel(next, clkevt_base + TIMER_LOAD);
-	writel(ctrl | TIMER_CTRL_ENABLE, clkevt_base + TIMER_CTRL);
-
-	return 0;
-}
-
-static struct clock_event_device sp804_clockevent = {
-	.features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
-		CLOCK_EVT_FEAT_DYNIRQ,
-	.set_mode	= sp804_set_mode,
-	.set_next_event	= sp804_set_next_event,
-	.rating		= 300,
-};
-
-static struct irqaction sp804_timer_irq = {
-	.name		= "timer",
-	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
-	.handler	= sp804_timer_interrupt,
-	.dev_id		= &sp804_clockevent,
-};
-
-void __init __sp804_clockevents_init(void __iomem *base, unsigned int irq, struct clk *clk, const char *name)
-{
-	struct clock_event_device *evt = &sp804_clockevent;
-	long rate;
-
-	if (!clk)
-		clk = clk_get_sys("sp804", name);
-	if (IS_ERR(clk)) {
-		pr_err("sp804: %s clock not found: %d\n", name,
-			(int)PTR_ERR(clk));
-		return;
-	}
-
-	rate = sp804_get_clock_rate(clk);
-	if (rate < 0)
-		return;
-
-	clkevt_base = base;
-	clkevt_reload = DIV_ROUND_CLOSEST(rate, HZ);
-	evt->name = name;
-	evt->irq = irq;
-	evt->cpumask = cpu_possible_mask;
-
-	writel(0, base + TIMER_CTRL);
-
-	setup_irq(irq, &sp804_timer_irq);
-	clockevents_config_and_register(evt, rate, 0xf, 0xffffffff);
-}
-
-static void __init sp804_of_init(struct device_node *np)
-{
-	static bool initialized = false;
-	void __iomem *base;
-	int irq;
-	u32 irq_num = 0;
-	struct clk *clk1, *clk2;
-	const char *name = of_get_property(np, "compatible", NULL);
-
-	base = of_iomap(np, 0);
-	if (WARN_ON(!base))
-		return;
-
-	/* Ensure timers are disabled */
-	writel(0, base + TIMER_CTRL);
-	writel(0, base + TIMER_2_BASE + TIMER_CTRL);
-
-	if (initialized || !of_device_is_available(np))
-		goto err;
-
-	clk1 = of_clk_get(np, 0);
-	if (IS_ERR(clk1))
-		clk1 = NULL;
-
-	/* Get the 2nd clock if the timer has 3 timer clocks */
-	if (of_count_phandle_with_args(np, "clocks", "#clock-cells") == 3) {
-		clk2 = of_clk_get(np, 1);
-		if (IS_ERR(clk2)) {
-			pr_err("sp804: %s clock not found: %d\n", np->name,
-				(int)PTR_ERR(clk2));
-			clk2 = NULL;
-		}
-	} else
-		clk2 = clk1;
-
-	irq = irq_of_parse_and_map(np, 0);
-	if (irq <= 0)
-		goto err;
-
-	of_property_read_u32(np, "arm,sp804-has-irq", &irq_num);
-	if (irq_num == 2) {
-		__sp804_clockevents_init(base + TIMER_2_BASE, irq, clk2, name);
-		__sp804_clocksource_and_sched_clock_init(base, name, clk1, 1);
-	} else {
-		__sp804_clockevents_init(base, irq, clk1 , name);
-		__sp804_clocksource_and_sched_clock_init(base + TIMER_2_BASE,
-							 name, clk2, 1);
-	}
-	initialized = true;
-
-	return;
-err:
-	iounmap(base);
-}
-CLOCKSOURCE_OF_DECLARE(sp804, "arm,sp804", sp804_of_init);
-
-static void __init integrator_cp_of_init(struct device_node *np)
-{
-	static int init_count = 0;
-	void __iomem *base;
-	int irq;
-	const char *name = of_get_property(np, "compatible", NULL);
-	struct clk *clk;
-
-	base = of_iomap(np, 0);
-	if (WARN_ON(!base))
-		return;
-	clk = of_clk_get(np, 0);
-	if (WARN_ON(IS_ERR(clk)))
-		return;
-
-	/* Ensure timer is disabled */
-	writel(0, base + TIMER_CTRL);
-
-	if (init_count == 2 || !of_device_is_available(np))
-		goto err;
-
-	if (!init_count)
-		__sp804_clocksource_and_sched_clock_init(base, name, clk, 0);
-	else {
-		irq = irq_of_parse_and_map(np, 0);
-		if (irq <= 0)
-			goto err;
-
-		__sp804_clockevents_init(base, irq, clk, name);
-	}
-
-	init_count++;
-	return;
-err:
-	iounmap(base);
-}
-CLOCKSOURCE_OF_DECLARE(intcp, "arm,integrator-cp-timer", integrator_cp_of_init);