MIPS: Netlogic: Move code common with XLP to common/

- Move code that can be shared with XLP (irq.c, smp.c, time.c and
  xlr_console.c) to arch/mips/netlogic/common
- Add asm/netlogic/haldefs.h and asm/netlogic/common.h for common and
  io functions shared with XLP
- remove type 'nlm_reg_t *' and use uint64_t for mmio offsets
- Move XLR specific code in smp.c to xlr/wakeup.c
- Move XLR specific PCI code from irq.c to mips/pci/pci-xlr.c
- Provide API for pic functions called from common/irq.c

Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2964/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

13 files changed, 372 insertions, 390 deletions

diff --git a/arch/mips/netlogic/Makefile b/arch/mips/netlogic/Makefile
new file mode 100644
index 00000000000..797326da371
--- /dev/null
+++ b/arch/mips/netlogic/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_NLM_COMMON)	+=	common/
+obj-$(CONFIG_CPU_XLR)		+=	xlr/
diff --git a/arch/mips/netlogic/Platform b/arch/mips/netlogic/Platform
index 18aaf438ee4..7811b107689 100644
--- a/arch/mips/netlogic/Platform
+++ b/arch/mips/netlogic/Platform
@@ -12,5 +12,5 @@ cflags-$(CONFIG_CPU_XLR)	+= $(call cc-option,-march=xlr,-march=mips64)
 #
 # NETLOGIC processor support
 #
-platform-$(CONFIG_CPU_XLR)  	+= netlogic/xlr
+platform-$(CONFIG_NLM_COMMON)  	+= netlogic/
 load-$(CONFIG_NLM_COMMON)  	+= 0xffffffff80100000
diff --git a/arch/mips/netlogic/common/Makefile b/arch/mips/netlogic/common/Makefile
new file mode 100644
index 00000000000..d4215783c3e
--- /dev/null
+++ b/arch/mips/netlogic/common/Makefile
@@ -0,0 +1,3 @@
+obj-y				+= irq.o time.o
+obj-$(CONFIG_SMP)		+= smp.o
+obj-$(CONFIG_EARLY_PRINTK)	+= earlycons.o
diff --git a/arch/mips/netlogic/xlr/xlr_console.c b/arch/mips/netlogic/common/earlycons.c
index 759df069220..28c8fa7a850 100644
--- a/arch/mips/netlogic/xlr/xlr_console.c
+++ b/arch/mips/netlogic/common/earlycons.c
@@ -33,14 +33,19 @@
  */
 
 #include <linux/types.h>
+#include <linux/serial_reg.h>
+
+#include <asm/mipsregs.h>
+#include <asm/netlogic/haldefs.h>
+
 #include <asm/netlogic/xlr/iomap.h>
 
 void prom_putchar(char c)
 {
-	nlm_reg_t *mmio;
+	uint64_t uartbase;
 
-	mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET);
-	while (netlogic_read_reg(mmio, 0x5) == 0)
+	uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
+	while (nlm_read_reg(uartbase, UART_LSR) == 0)
 		;
-	netlogic_write_reg(mmio, 0x0, c);
+	nlm_write_reg(uartbase, UART_TX, c);
 }
diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c
new file mode 100644
index 00000000000..dd0dd626cc8
--- /dev/null
+++ b/arch/mips/netlogic/common/irq.c
@@ -0,0 +1,230 @@
+/*
+ * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
+ * reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the NetLogic
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/linkage.h>
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+
+#include <asm/errno.h>
+#include <asm/signal.h>
+#include <asm/system.h>
+#include <asm/ptrace.h>
+#include <asm/mipsregs.h>
+#include <asm/thread_info.h>
+
+#include <asm/netlogic/mips-extns.h>
+#include <asm/netlogic/interrupt.h>
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
+
+#include <asm/netlogic/xlr/iomap.h>
+#include <asm/netlogic/xlr/pic.h>
+/*
+ * These are the routines that handle all the low level interrupt stuff.
+ * Actions handled here are: initialization of the interrupt map, requesting of
+ * interrupt lines by handlers, dispatching if interrupts to handlers, probing
+ * for interrupt lines
+ */
+
+/* Globals */
+static uint64_t nlm_irq_mask;
+static DEFINE_SPINLOCK(nlm_pic_lock);
+
+static void xlp_pic_enable(struct irq_data *d)
+{
+	unsigned long flags;
+	int irt;
+
+	irt = nlm_irq_to_irt(d->irq);
+	if (irt == -1)
+		return;
+	spin_lock_irqsave(&nlm_pic_lock, flags);
+	nlm_pic_enable_irt(nlm_pic_base, irt);
+	spin_unlock_irqrestore(&nlm_pic_lock, flags);
+}
+
+static void xlp_pic_disable(struct irq_data *d)
+{
+	unsigned long flags;
+	int irt;
+
+	irt = nlm_irq_to_irt(d->irq);
+	if (irt == -1)
+		return;
+	spin_lock_irqsave(&nlm_pic_lock, flags);
+	nlm_pic_disable_irt(nlm_pic_base, irt);
+	spin_unlock_irqrestore(&nlm_pic_lock, flags);
+}
+
+static void xlp_pic_mask_ack(struct irq_data *d)
+{
+	uint64_t mask = 1ull << d->irq;
+
+	write_c0_eirr(mask);            /* ack by writing EIRR */
+}
+
+static void xlp_pic_unmask(struct irq_data *d)
+{
+	void *hd = irq_data_get_irq_handler_data(d);
+	int irt;
+
+	irt = nlm_irq_to_irt(d->irq);
+	if (irt == -1)
+		return;
+
+	if (hd) {
+		void (*extra_ack)(void *) = hd;
+		extra_ack(d);
+	}
+	/* Ack is a single write, no need to lock */
+	nlm_pic_ack(nlm_pic_base, irt);
+}
+
+static struct irq_chip xlp_pic = {
+	.name		= "XLP-PIC",
+	.irq_enable	= xlp_pic_enable,
+	.irq_disable	= xlp_pic_disable,
+	.irq_mask_ack	= xlp_pic_mask_ack,
+	.irq_unmask	= xlp_pic_unmask,
+};
+
+static void cpuintr_disable(struct irq_data *d)
+{
+	uint64_t eimr;
+	uint64_t mask = 1ull << d->irq;
+
+	eimr = read_c0_eimr();
+	write_c0_eimr(eimr & ~mask);
+}
+
+static void cpuintr_enable(struct irq_data *d)
+{
+	uint64_t eimr;
+	uint64_t mask = 1ull << d->irq;
+
+	eimr = read_c0_eimr();
+	write_c0_eimr(eimr | mask);
+}
+
+static void cpuintr_ack(struct irq_data *d)
+{
+	uint64_t mask = 1ull << d->irq;
+
+	write_c0_eirr(mask);
+}
+
+static void cpuintr_nop(struct irq_data *d)
+{
+	WARN(d->irq >= PIC_IRQ_BASE, "Bad irq %d", d->irq);
+}
+
+/*
+ * Chip definition for CPU originated interrupts(timer, msg) and
+ * IPIs
+ */
+struct irq_chip nlm_cpu_intr = {
+	.name		= "XLP-CPU-INTR",
+	.irq_enable	= cpuintr_enable,
+	.irq_disable	= cpuintr_disable,
+	.irq_mask	= cpuintr_nop,
+	.irq_ack	= cpuintr_nop,
+	.irq_eoi	= cpuintr_ack,
+};
+
+void __init init_nlm_common_irqs(void)
+{
+	int i, irq, irt;
+
+	for (i = 0; i < PIC_IRT_FIRST_IRQ; i++)
+		irq_set_chip_and_handler(i, &nlm_cpu_intr, handle_percpu_irq);
+
+	for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ ; i++)
+		irq_set_chip_and_handler(i, &xlp_pic, handle_level_irq);
+
+#ifdef CONFIG_SMP
+	irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr,
+			 nlm_smp_function_ipi_handler);
+	irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr,
+			 nlm_smp_resched_ipi_handler);
+	nlm_irq_mask |=
+	    ((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE));
+#endif
+
+	for (irq = PIC_IRT_FIRST_IRQ; irq <= PIC_IRT_LAST_IRQ; irq++) {
+		irt = nlm_irq_to_irt(irq);
+		if (irt == -1)
+			continue;
+		nlm_irq_mask |= (1ULL << irq);
+		nlm_pic_init_irt(nlm_pic_base, irt, irq, 0);
+	}
+
+	nlm_irq_mask |= (1ULL << IRQ_TIMER);
+}
+
+void __init arch_init_irq(void)
+{
+	/* Initialize the irq descriptors */
+	init_nlm_common_irqs();
+
+	write_c0_eimr(nlm_irq_mask);
+}
+
+void __cpuinit nlm_smp_irq_init(void)
+{
+	/* set interrupt mask for non-zero cpus */
+	write_c0_eimr(nlm_irq_mask);
+}
+
+asmlinkage void plat_irq_dispatch(void)
+{
+	uint64_t eirr;
+	int i;
+
+	eirr = read_c0_eirr() & read_c0_eimr();
+	if (eirr & (1 << IRQ_TIMER)) {
+		do_IRQ(IRQ_TIMER);
+		return;
+	}
+
+	i = __ilog2_u64(eirr);
+	if (i == -1)
+		return;
+
+	do_IRQ(i);
+}
diff --git a/arch/mips/netlogic/xlr/smp.c b/arch/mips/netlogic/common/smp.c
index 080284ded50..3b32c834d14 100644
--- a/arch/mips/netlogic/xlr/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -42,31 +42,20 @@
 
 #include <asm/netlogic/interrupt.h>
 #include <asm/netlogic/mips-extns.h>
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
 
 #include <asm/netlogic/xlr/iomap.h>
 #include <asm/netlogic/xlr/pic.h>
-#include <asm/netlogic/xlr/xlr.h>
 
-void core_send_ipi(int logical_cpu, unsigned int action)
+void nlm_send_ipi_single(int logical_cpu, unsigned int action)
 {
 	int cpu = cpu_logical_map(logical_cpu);
-	u32 tid = cpu & 0x3;
-	u32 pid = (cpu >> 2) & 0x07;
-	u32 ipi = (tid << 16) | (pid << 20);
 
 	if (action & SMP_CALL_FUNCTION)
-		ipi |= IRQ_IPI_SMP_FUNCTION;
-	else if (action & SMP_RESCHEDULE_YOURSELF)
-		ipi |= IRQ_IPI_SMP_RESCHEDULE;
-	else
-		return;
-
-	pic_send_ipi(ipi);
-}
-
-void nlm_send_ipi_single(int cpu, unsigned int action)
-{
-	core_send_ipi(cpu, action);
+		nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_FUNCTION, 0);
+	if (action & SMP_RESCHEDULE_YOURSELF)
+		nlm_pic_send_ipi(nlm_pic_base, cpu, IRQ_IPI_SMP_RESCHEDULE, 0);
 }
 
 void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
@@ -74,7 +63,7 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 	int cpu;
 
 	for_each_cpu(cpu, mask) {
-		core_send_ipi(cpu, action);
+		nlm_send_ipi_single(cpu, action);
 	}
 }
 
@@ -82,21 +71,26 @@ void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action)
 void nlm_smp_function_ipi_handler(unsigned int irq, struct irq_desc *desc)
 {
 	smp_call_function_interrupt();
+	write_c0_eirr(1ull << irq);
 }
 
 /* IRQ_IPI_SMP_RESCHEDULE  handler */
 void nlm_smp_resched_ipi_handler(unsigned int irq, struct irq_desc *desc)
 {
 	scheduler_ipi();
+	write_c0_eirr(1ull << irq);
 }
 
 /*
  * Called before going into mips code, early cpu init
  */
-void nlm_early_init_secondary(void)
+void nlm_early_init_secondary(int cpu)
 {
 	write_c0_ebase((uint32_t)nlm_common_ebase);
-	/* TLB partition here later */
+#ifdef NLM_XLP
+	if (cpu % 4 == 0)
+		xlp_mmu_init();
+#endif
 }
 
 /*
@@ -159,8 +153,8 @@ void __init nlm_smp_setup(void)
 	num_cpus = 1;
 	for (i = 0; i < NR_CPUS; i++) {
 		/*
-		 * BSP is not set in nlm_cpu_ready array, it is only for
-		 * ASPs (goto see smpboot.S)
+		 * nlm_cpu_ready array is not set for the boot_cpu,
+		 * it is only set for ASPs (see smpboot.S)
 		 */
 		if (nlm_cpu_ready[i]) {
 			cpu_set(i, phys_cpu_present_map);
@@ -192,29 +186,3 @@ struct plat_smp_ops nlm_smp_ops = {
 	.smp_setup		= nlm_smp_setup,
 	.prepare_cpus		= nlm_prepare_cpus,
 };
-
-unsigned long secondary_entry_point;
-
-int __cpuinit nlm_wakeup_secondary_cpus(u32 wakeup_mask)
-{
-	unsigned int tid, pid, ipi, i, boot_cpu;
-	void *reset_vec;
-
-	secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus;
-	reset_vec = (void *)CKSEG1ADDR(0x1fc00000);
-	memcpy(reset_vec, nlm_boot_smp_nmi, 0x80);
-	boot_cpu = hard_smp_processor_id();
-
-	for (i = 0; i < NR_CPUS; i++) {
-		if (i == boot_cpu)
-			continue;
-		if (wakeup_mask & (1u << i)) {
-			tid = i & 0x3;
-			pid = (i >> 2) & 0x7;
-			ipi = (tid << 16) | (pid << 20) | (1 << 8);
-			pic_send_ipi(ipi);
-		}
-	}
-
-	return 0;
-}
diff --git a/arch/mips/netlogic/xlr/time.c b/arch/mips/netlogic/common/time.c
index 0d81b262593..bd3e498157f 100644
--- a/arch/mips/netlogic/xlr/time.c
+++ b/arch/mips/netlogic/common/time.c
@@ -36,7 +36,7 @@
 
 #include <asm/time.h>
 #include <asm/netlogic/interrupt.h>
-#include <asm/netlogic/psb-bootinfo.h>
+#include <asm/netlogic/common.h>
 
 unsigned int __cpuinit get_c0_compare_int(void)
 {
@@ -45,7 +45,7 @@ unsigned int __cpuinit get_c0_compare_int(void)
 
 void __init plat_time_init(void)
 {
-	mips_hpt_frequency = nlm_prom_info.cpu_frequency;
+	mips_hpt_frequency = nlm_get_cpu_frequency();
 	pr_info("MIPS counter frequency [%ld]\n",
-		(unsigned long)mips_hpt_frequency);
+			(unsigned long)mips_hpt_frequency);
 }
diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile
index 29f1fd5ba80..df245c60454 100644
--- a/arch/mips/netlogic/xlr/Makefile
+++ b/arch/mips/netlogic/xlr/Makefile
@@ -1,3 +1,2 @@
-obj-y				+= setup.o platform.o irq.o setup.o time.o
-obj-$(CONFIG_SMP)		+= smp.o smpboot.o
-obj-$(CONFIG_EARLY_PRINTK)	+= xlr_console.o
+obj-y				+= setup.o platform.o
+obj-$(CONFIG_SMP)		+= smpboot.o wakeup.o
diff --git a/arch/mips/netlogic/xlr/irq.c b/arch/mips/netlogic/xlr/irq.c
deleted file mode 100644
index fc822c8f081..00000000000
--- a/arch/mips/netlogic/xlr/irq.c
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
- * reserved.
- *
- * This software is available to you under a choice of one of two
- * licenses.  You may choose to be licensed under the terms of the GNU
- * General Public License (GPL) Version 2, available from the file
- * COPYING in the main directory of this source tree, or the NetLogic
- * license below:
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
- * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
- * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
- * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/linkage.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-#include <linux/msi.h>
-#include <linux/irq.h>
-#include <linux/irqdesc.h>
-#include <linux/pci.h>
-
-#include <asm/mipsregs.h>
-
-#include <asm/netlogic/xlr/msidef.h>
-#include <asm/netlogic/xlr/iomap.h>
-#include <asm/netlogic/xlr/pic.h>
-#include <asm/netlogic/xlr/xlr.h>
-
-#include <asm/netlogic/interrupt.h>
-#include <asm/netlogic/mips-extns.h>
-
-static u64 nlm_irq_mask;
-static DEFINE_SPINLOCK(nlm_pic_lock);
-
-static void xlr_pic_enable(struct irq_data *d)
-{
-	nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET);
-	unsigned long flags;
-	nlm_reg_t reg;
-	int irq = d->irq;
-
-	WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq);
-
-	spin_lock_irqsave(&nlm_pic_lock, flags);
-	reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE);
-	netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE,
-			  reg | (1 << 6) | (1 << 30) | (1 << 31));
-	spin_unlock_irqrestore(&nlm_pic_lock, flags);
-}
-
-static void xlr_pic_mask(struct irq_data *d)
-{
-	nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET);
-	unsigned long flags;
-	nlm_reg_t reg;
-	int irq = d->irq;
-
-	WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq);
-
-	spin_lock_irqsave(&nlm_pic_lock, flags);
-	reg = netlogic_read_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE);
-	netlogic_write_reg(mmio, PIC_IRT_1_BASE + irq - PIC_IRQ_BASE,
-			  reg | (1 << 6) | (1 << 30) | (0 << 31));
-	spin_unlock_irqrestore(&nlm_pic_lock, flags);
-}
-
-#ifdef CONFIG_PCI
-/* Extra ACK needed for XLR on chip PCI controller */
-static void xlr_pci_ack(struct irq_data *d)
-{
-	nlm_reg_t *pci_mmio = netlogic_io_mmio(NETLOGIC_IO_PCIX_OFFSET);
-
-	netlogic_read_reg(pci_mmio, (0x140 >> 2));
-}
-
-/* Extra ACK needed for XLS on chip PCIe controller */
-static void xls_pcie_ack(struct irq_data *d)
-{
-	nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET);
-
-	switch (d->irq) {
-	case PIC_PCIE_LINK0_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_LINK1_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_LINK2_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_LINK3_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff);
-		break;
-	}
-}
-
-/* For XLS B silicon, the 3,4 PCI interrupts are different */
-static void xls_pcie_ack_b(struct irq_data *d)
-{
-	nlm_reg_t *pcie_mmio_le = netlogic_io_mmio(NETLOGIC_IO_PCIE_1_OFFSET);
-
-	switch (d->irq) {
-	case PIC_PCIE_LINK0_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x90 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_LINK1_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x94 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_XLSB0_LINK2_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x190 >> 2), 0xffffffff);
-		break;
-	case PIC_PCIE_XLSB0_LINK3_IRQ:
-		netlogic_write_reg(pcie_mmio_le, (0x194 >> 2), 0xffffffff);
-		break;
-	}
-}
-#endif
-
-static void xlr_pic_ack(struct irq_data *d)
-{
-	unsigned long flags;
-	nlm_reg_t *mmio;
-	int irq = d->irq;
-	void *hd = irq_data_get_irq_handler_data(d);
-
-	WARN(!PIC_IRQ_IS_IRT(irq), "Bad irq %d", irq);
-
-	if (hd) {
-		void (*extra_ack)(void *) = hd;
-		extra_ack(d);
-	}
-	mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET);
-	spin_lock_irqsave(&nlm_pic_lock, flags);
-	netlogic_write_reg(mmio, PIC_INT_ACK, (1 << (irq - PIC_IRQ_BASE)));
-	spin_unlock_irqrestore(&nlm_pic_lock, flags);
-}
-
-/*
- * This chip definition handles interrupts routed thru the XLR
- * hardware PIC, currently IRQs 8-39 are mapped to hardware intr
- * 0-31 wired the XLR PIC
- */
-static struct irq_chip xlr_pic = {
-	.name		= "XLR-PIC",
-	.irq_enable	= xlr_pic_enable,
-	.irq_mask	= xlr_pic_mask,
-	.irq_ack	= xlr_pic_ack,
-};
-
-static void rsvd_irq_handler(struct irq_data *d)
-{
-	WARN(d->irq >= PIC_IRQ_BASE, "Bad irq %d", d->irq);
-}
-
-/*
- * Chip definition for CPU originated interrupts(timer, msg) and
- * IPIs
- */
-struct irq_chip nlm_cpu_intr = {
-	.name		= "XLR-CPU-INTR",
-	.irq_enable	= rsvd_irq_handler,
-	.irq_mask	= rsvd_irq_handler,
-	.irq_ack	= rsvd_irq_handler,
-};
-
-void __init init_xlr_irqs(void)
-{
-	nlm_reg_t *mmio = netlogic_io_mmio(NETLOGIC_IO_PIC_OFFSET);
-	uint32_t thread_mask = 1;
-	int level, i;
-
-	pr_info("Interrupt thread mask [%x]\n", thread_mask);
-	for (i = 0; i < PIC_NUM_IRTS; i++) {
-		level = PIC_IRQ_IS_EDGE_TRIGGERED(i);
-
-		/* Bind all PIC irqs to boot cpu */
-		netlogic_write_reg(mmio, PIC_IRT_0_BASE + i, thread_mask);
-
-		/*
-		 * Use local scheduling and high polarity for all IRTs
-		 * Invalidate all IRTs, by default
-		 */
-		netlogic_write_reg(mmio, PIC_IRT_1_BASE + i,
-				(level << 30) | (1 << 6) | (PIC_IRQ_BASE + i));
-	}
-
-	/* Make all IRQs as level triggered by default */
-	for (i = 0; i < NR_IRQS; i++) {
-		if (PIC_IRQ_IS_IRT(i))
-			irq_set_chip_and_handler(i, &xlr_pic, handle_level_irq);
-		else
-			irq_set_chip_and_handler(i, &nlm_cpu_intr,
-						handle_percpu_irq);
-	}
-#ifdef CONFIG_SMP
-	irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr,
-			 nlm_smp_function_ipi_handler);
-	irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr,
-			 nlm_smp_resched_ipi_handler);
-	nlm_irq_mask |=
-	    ((1ULL << IRQ_IPI_SMP_FUNCTION) | (1ULL << IRQ_IPI_SMP_RESCHEDULE));
-#endif
-
-#ifdef CONFIG_PCI
-	/*
-	 * For PCI interrupts, we need to ack the PIC controller too, overload
-	 * irq handler data to do this
-	 */
-	if (nlm_chip_is_xls()) {
-		if (nlm_chip_is_xls_b()) {
-			irq_set_handler_data(PIC_PCIE_LINK0_IRQ,
-							xls_pcie_ack_b);
-			irq_set_handler_data(PIC_PCIE_LINK1_IRQ,
-							xls_pcie_ack_b);
-			irq_set_handler_data(PIC_PCIE_XLSB0_LINK2_IRQ,
-							xls_pcie_ack_b);
-			irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ,
-							xls_pcie_ack_b);
-		} else {
-			irq_set_handler_data(PIC_PCIE_LINK0_IRQ, xls_pcie_ack);
-			irq_set_handler_data(PIC_PCIE_LINK1_IRQ, xls_pcie_ack);
-			irq_set_handler_data(PIC_PCIE_LINK2_IRQ, xls_pcie_ack);
-			irq_set_handler_data(PIC_PCIE_LINK3_IRQ, xls_pcie_ack);
-		}
-	} else {
-		/* XLR PCI controller ACK */
-		irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack);
-	}
-#endif
-	/* unmask all PIC related interrupts. If no handler is installed by the
-	 * drivers, it'll just ack the interrupt and return
-	 */
-	for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ; i++)
-		nlm_irq_mask |= (1ULL << i);
-
-	nlm_irq_mask |= (1ULL << IRQ_TIMER);
-}
-
-void __init arch_init_irq(void)
-{
-	/* Initialize the irq descriptors */
-	init_xlr_irqs();
-	write_c0_eimr(nlm_irq_mask);
-}
-
-void __cpuinit nlm_smp_irq_init(void)
-{
-	/* set interrupt mask for non-zero cpus */
-	write_c0_eimr(nlm_irq_mask);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
-	uint64_t eirr;
-	int i;
-
-	eirr = read_c0_eirr() & read_c0_eimr();
-	if (!eirr)
-		return;
-
-	/* no need of EIRR here, writing compare clears interrupt */
-	if (eirr & (1 << IRQ_TIMER)) {
-		do_IRQ(IRQ_TIMER);
-		return;
-	}
-
-	/* use dcltz: optimize below code */
-	for (i = 63; i != -1; i--) {
-		if (eirr & (1ULL << i))
-			break;
-	}
-	if (i == -1) {
-		pr_err("no interrupt !!\n");
-		return;
-	}
-
-	/* Ack eirr */
-	write_c0_eirr(1ULL << i);
-
-	do_IRQ(i);
-}
diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c
index 609ec253464..eab64b45dff 100644
--- a/arch/mips/netlogic/xlr/platform.c
+++ b/arch/mips/netlogic/xlr/platform.c
@@ -15,18 +15,19 @@
 #include <linux/serial_8250.h>
 #include <linux/serial_reg.h>
 
+#include <asm/netlogic/haldefs.h>
 #include <asm/netlogic/xlr/iomap.h>
 #include <asm/netlogic/xlr/pic.h>
 #include <asm/netlogic/xlr/xlr.h>
 
 unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset)
 {
-	nlm_reg_t *mmio;
+	uint64_t uartbase;
 	unsigned int value;
 
-	/* XLR uart does not need any mapping of regs */
-	mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift));
-	value = netlogic_read_reg(mmio, 0);
+	/* sign extend to 64 bits, if needed */
+	uartbase = (uint64_t)(long)p->membase;
+	value = nlm_read_reg(uartbase, offset);
 
 	/* See XLR/XLS errata */
 	if (offset == UART_MSR)
@@ -39,10 +40,10 @@ unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset)
 
 void nlm_xlr_uart_out(struct uart_port *p, int offset, int value)
 {
-	nlm_reg_t *mmio;
+	uint64_t uartbase;
 
-	/* XLR uart does not need any mapping of regs */
-	mmio = (nlm_reg_t *)(p->membase + (offset << p->regshift));
+	/* sign extend to 64 bits, if needed */
+	uartbase = (uint64_t)(long)p->membase;
 
 	/* See XLR/XLS errata */
 	if (offset == UART_MSR)
@@ -50,7 +51,7 @@ void nlm_xlr_uart_out(struct uart_port *p, int offset, int value)
 	else if (offset == UART_MCR)
 		value ^= 0x3;
 
-	netlogic_write_reg(mmio, 0, value);
+	nlm_write_reg(uartbase, offset, value);
 }
 
 #define PORT(_irq)					\
@@ -82,15 +83,15 @@ static struct platform_device uart_device = {
 
 static int __init nlm_uart_init(void)
 {
-	nlm_reg_t *mmio;
+	unsigned long uartbase;
 
-	mmio = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET);
-	xlr_uart_data[0].membase = (void __iomem *)mmio;
-	xlr_uart_data[0].mapbase = CPHYSADDR((unsigned long)mmio);
+	uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
+	xlr_uart_data[0].membase = (void __iomem *)uartbase;
+	xlr_uart_data[0].mapbase = CPHYSADDR(uartbase);
 
-	mmio = netlogic_io_mmio(NETLOGIC_IO_UART_1_OFFSET);
-	xlr_uart_data[1].membase = (void __iomem *)mmio;
-	xlr_uart_data[1].mapbase = CPHYSADDR((unsigned long)mmio);
+	uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_1_OFFSET);
+	xlr_uart_data[1].membase = (void __iomem *)uartbase;
+	xlr_uart_data[1].mapbase = CPHYSADDR(uartbase);
 
 	return platform_device_register(&uart_device);
 }
diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c
index cee25ddd088..20c280ae7e9 100644
--- a/arch/mips/netlogic/xlr/setup.c
+++ b/arch/mips/netlogic/xlr/setup.c
@@ -39,26 +39,28 @@
 #include <asm/reboot.h>
 #include <asm/time.h>
 #include <asm/bootinfo.h>
-#include <asm/smp-ops.h>
 
 #include <asm/netlogic/interrupt.h>
 #include <asm/netlogic/psb-bootinfo.h>
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
 
 #include <asm/netlogic/xlr/xlr.h>
 #include <asm/netlogic/xlr/iomap.h>
 #include <asm/netlogic/xlr/pic.h>
 #include <asm/netlogic/xlr/gpio.h>
 
-unsigned long netlogic_io_base = (unsigned long)(DEFAULT_NETLOGIC_IO_BASE);
+uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE;
+uint64_t nlm_pic_base;
 unsigned long nlm_common_ebase = 0x0;
 struct psb_info nlm_prom_info;
 
 static void __init nlm_early_serial_setup(void)
 {
 	struct uart_port s;
-	nlm_reg_t *uart_base;
+	unsigned long uart_base;
 
-	uart_base = netlogic_io_mmio(NETLOGIC_IO_UART_0_OFFSET);
+	uart_base = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET);
 	memset(&s, 0, sizeof(s));
 	s.flags		= ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST;
 	s.iotype	= UPIO_MEM32;
@@ -67,18 +69,18 @@ static void __init nlm_early_serial_setup(void)
 	s.uartclk	= PIC_CLKS_PER_SEC;
 	s.serial_in	= nlm_xlr_uart_in;
 	s.serial_out	= nlm_xlr_uart_out;
-	s.mapbase	= (unsigned long)uart_base;
+	s.mapbase	= uart_base;
 	s.membase	= (unsigned char __iomem *)uart_base;
 	early_serial_setup(&s);
 }
 
 static void nlm_linux_exit(void)
 {
-	nlm_reg_t *mmio;
+	uint64_t gpiobase;
 
-	mmio = netlogic_io_mmio(NETLOGIC_IO_GPIO_OFFSET);
+	gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET);
 	/* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */
-	netlogic_write_reg(mmio, NETLOGIC_GPIO_SWRESET_REG, 1);
+	nlm_write_reg(gpiobase, NETLOGIC_GPIO_SWRESET_REG, 1);
 	for ( ; ; )
 		cpu_wait();
 }
@@ -96,6 +98,11 @@ const char *get_system_type(void)
 	return "Netlogic XLR/XLS Series";
 }
 
+unsigned int nlm_get_cpu_frequency(void)
+{
+	return (unsigned int)nlm_prom_info.cpu_frequency;
+}
+
 void __init prom_free_prom_memory(void)
 {
 	/* Nothing yet */
@@ -175,6 +182,7 @@ void __init prom_init(void)
 	prom_infop = (struct psb_info *)(long)(int)fw_arg3;
 
 	nlm_prom_info = *prom_infop;
+	nlm_pic_base = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET);
 
 	nlm_early_serial_setup();
 	build_arcs_cmdline(argv);
diff --git a/arch/mips/netlogic/xlr/smpboot.S b/arch/mips/netlogic/xlr/smpboot.S
index 8cb7889ce0c..7f1f6e6e295 100644
--- a/arch/mips/netlogic/xlr/smpboot.S
+++ b/arch/mips/netlogic/xlr/smpboot.S
@@ -75,12 +75,11 @@ NESTED(prom_pre_boot_secondary_cpus, 16, sp)
 	jr	t0
 	nop
 END(prom_pre_boot_secondary_cpus)
-	__FINIT
 
 /*
  * NMI code, used for CPU wakeup, copied to reset entry
  */
-NESTED(nlm_boot_smp_nmi, 0, sp)
+EXPORT(nlm_reset_entry)
 	.set push
 	.set noat
 	.set mips64
@@ -97,4 +96,5 @@ NESTED(nlm_boot_smp_nmi, 0, sp)
 	jr	k0
 	nop
 	.set pop
-END(nlm_boot_smp_nmi)
+EXPORT(nlm_reset_entry_end)
+	__FINIT
diff --git a/arch/mips/netlogic/xlr/wakeup.c b/arch/mips/netlogic/xlr/wakeup.c
new file mode 100644
index 00000000000..69143bb7f68
--- /dev/null
+++ b/arch/mips/netlogic/xlr/wakeup.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights
+ * reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the NetLogic
+ * license below:
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
+ * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/init.h>
+#include <linux/threads.h>
+
+#include <asm/asm.h>
+#include <asm/asm-offsets.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/string.h>
+
+#include <asm/netlogic/haldefs.h>
+#include <asm/netlogic/common.h>
+#include <asm/netlogic/mips-extns.h>
+
+#include <asm/netlogic/xlr/iomap.h>
+#include <asm/netlogic/xlr/pic.h>
+
+unsigned long secondary_entry_point;
+
+int __cpuinit nlm_wakeup_secondary_cpus(u32 wakeup_mask)
+{
+	unsigned int i, boot_cpu;
+	void *reset_vec;
+
+	secondary_entry_point = (unsigned long)prom_pre_boot_secondary_cpus;
+	reset_vec = (void *)CKSEG1ADDR(0x1fc00000);
+	memcpy(reset_vec, (void *)nlm_reset_entry,
+			(nlm_reset_entry_end - nlm_reset_entry));
+	boot_cpu = hard_smp_processor_id();
+
+	for (i = 0; i < NR_CPUS; i++) {
+		if (i == boot_cpu || (wakeup_mask & (1u << i)) == 0)
+			continue;
+		nlm_pic_send_ipi(nlm_pic_base, i, 1, 1); /* send NMI */
+	}
+
+	return 0;
+}