Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

Pull MIPS updates from Ralf Baechle:
 "This is the main pull request for 3.17.  It contains:

   - misc Cavium Octeon, BCM47xx, BCM63xx and Alchemy  updates
   - MIPS ptrace updates and cleanups
   - various fixes that will also go to -stable
   - a number of cleanups and small non-critical fixes.
   - NUMA support for the Loongson 3.
   - more support for MSA
   - support for MAAR
   - various FP enhancements and fixes"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (139 commits)
  MIPS: jz4740: remove unnecessary null test before debugfs_remove
  MIPS: Octeon: remove unnecessary null test before debugfs_remove_recursive
  MIPS: ZBOOT: implement stack protector in compressed boot phase
  MIPS: mipsreg: remove duplicate MIPS_CONF4_FTLBSETS_SHIFT
  MIPS: Bonito64: remove a duplicate define
  MIPS: Malta: initialise MAARs
  MIPS: Initialise MAARs
  MIPS: detect presence of MAARs
  MIPS: define MAAR register accessors & bits
  MIPS: mark MSA experimental
  MIPS: Don't build MSA support unless it can be used
  MIPS: consistently clear MSA flags when starting & copying threads
  MIPS: 16 byte align MSA vector context
  MIPS: disable preemption whilst initialising MSA
  MIPS: ensure MSA gets disabled during boot
  MIPS: fix read_msa_* & write_msa_* functions on non-MSA toolchains
  MIPS: fix MSA context for tasks which don't use FP first
  MIPS: init upper 64b of vector registers when MSA is first used
  MIPS: save/disable MSA in lose_fpu
  MIPS: preserve scalar FP CSR when switching vector context
  ...

43 files changed, 1221 insertions, 1540 deletions

diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 05439187891d..335e5290ec75 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -15,4 +15,5 @@ generic-y += segment.h
 generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += ucontext.h
+generic-y += user.h
 generic-y += xor.h
diff --git a/arch/mips/include/asm/addrspace.h b/arch/mips/include/asm/addrspace.h
index 3f745459fdb5..3b0e51d5a613 100644
--- a/arch/mips/include/asm/addrspace.h
+++ b/arch/mips/include/asm/addrspace.h
@@ -52,7 +52,7 @@
  */
 #define CPHYSADDR(a)		((_ACAST32_(a)) & 0x1fffffff)
 #define XPHYSADDR(a)		((_ACAST64_(a)) &			\
-				 _CONST64_(0x000000ffffffffff))
+				 _CONST64_(0x0000ffffffffffff))
 
 #ifdef CONFIG_64BIT
 
diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 935543f14538..cd9a98bc8f60 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -10,6 +10,7 @@
 
 #include <asm/hazards.h>
 #include <asm/asm-offsets.h>
+#include <asm/msa.h>
 
 #ifdef CONFIG_32BIT
 #include <asm/asmmacro-32.h>
@@ -378,9 +379,19 @@
 	st_d	29, THREAD_FPR29, \thread
 	st_d	30, THREAD_FPR30, \thread
 	st_d	31, THREAD_FPR31, \thread
+	.set	push
+	.set	noat
+	cfcmsa	$1, MSA_CSR
+	sw	$1, THREAD_MSA_CSR(\thread)
+	.set	pop
 	.endm
 
 	.macro	msa_restore_all	thread
+	.set	push
+	.set	noat
+	lw	$1, THREAD_MSA_CSR(\thread)
+	ctcmsa	MSA_CSR, $1
+	.set	pop
 	ld_d	0, THREAD_FPR0, \thread
 	ld_d	1, THREAD_FPR1, \thread
 	ld_d	2, THREAD_FPR2, \thread
@@ -415,4 +426,24 @@
 	ld_d	31, THREAD_FPR31, \thread
 	.endm
 
+	.macro	msa_init_upper wd
+#ifdef CONFIG_64BIT
+	insert_d \wd, 1
+#else
+	insert_w \wd, 2
+	insert_w \wd, 3
+#endif
+	.if	31-\wd
+	msa_init_upper	(\wd+1)
+	.endif
+	.endm
+
+	.macro	msa_init_all_upper
+	.set	push
+	.set	noat
+	not	$1, zero
+	msa_init_upper	0
+	.set	pop
+	.endm
+
 #endif /* _ASM_ASMMACRO_H */
diff --git a/arch/mips/include/asm/bitops.h b/arch/mips/include/asm/bitops.h
index 7c8816f7b7c4..bae6b0fa8ab5 100644
--- a/arch/mips/include/asm/bitops.h
+++ b/arch/mips/include/asm/bitops.h
@@ -559,7 +559,13 @@ static inline int fls(int x)
 	int r;
 
 	if (__builtin_constant_p(cpu_has_clo_clz) && cpu_has_clo_clz) {
-		__asm__("clz %0, %1" : "=r" (x) : "r" (x));
+		__asm__(
+		"	.set	push					\n"
+		"	.set	mips32					\n"
+		"	clz	%0, %1					\n"
+		"	.set	pop					\n"
+		: "=r" (x)
+		: "r" (x));
 
 		return 32 - x;
 	}
diff --git a/arch/mips/include/asm/cop2.h b/arch/mips/include/asm/cop2.h
index c1516cc0285f..d0352983b94d 100644
--- a/arch/mips/include/asm/cop2.h
+++ b/arch/mips/include/asm/cop2.h
@@ -32,6 +32,14 @@ extern void nlm_cop2_restore(struct nlm_cop2_state *);
 #define cop2_present		1
 #define cop2_lazy_restore	0
 
+#elif defined(CONFIG_CPU_LOONGSON3)
+
+#define cop2_save(r)
+#define cop2_restore(r)
+
+#define cop2_present		1
+#define cop2_lazy_restore	1
+
 #else
 
 #define cop2_present		0
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h
index c7d8c997d93e..e079598ae051 100644
--- a/arch/mips/include/asm/cpu-features.h
+++ b/arch/mips/include/asm/cpu-features.h
@@ -29,6 +29,15 @@
 #ifndef cpu_has_eva
 #define cpu_has_eva		(cpu_data[0].options & MIPS_CPU_EVA)
 #endif
+#ifndef cpu_has_htw
+#define cpu_has_htw		(cpu_data[0].options & MIPS_CPU_HTW)
+#endif
+#ifndef cpu_has_rixiex
+#define cpu_has_rixiex		(cpu_data[0].options & MIPS_CPU_RIXIEX)
+#endif
+#ifndef cpu_has_maar
+#define cpu_has_maar		(cpu_data[0].options & MIPS_CPU_MAAR)
+#endif
 
 /*
  * For the moment we don't consider R6000 and R8000 so we can assume that
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h
index 47d5967ce7ef..d5f42c168001 100644
--- a/arch/mips/include/asm/cpu-info.h
+++ b/arch/mips/include/asm/cpu-info.h
@@ -44,8 +44,8 @@ struct cpuinfo_mips {
 	/*
 	 * Capability and feature descriptor structure for MIPS CPU
 	 */
-	unsigned long		options;
 	unsigned long		ases;
+	unsigned long long	options;
 	unsigned int		udelay_val;
 	unsigned int		processor_id;
 	unsigned int		fpu_id;
@@ -61,6 +61,7 @@ struct cpuinfo_mips {
 	struct cache_desc	scache; /* Secondary cache */
 	struct cache_desc	tcache; /* Tertiary/split secondary cache */
 	int			srsets; /* Shadow register sets */
+	int			package;/* physical package number */
 	int			core;	/* physical core number */
 #ifdef CONFIG_64BIT
 	int			vmbits; /* Virtual memory size in bits */
@@ -115,7 +116,7 @@ struct proc_cpuinfo_notifier_args {
 #ifdef CONFIG_MIPS_MT_SMP
 # define cpu_vpe_id(cpuinfo)	((cpuinfo)->vpe_id)
 #else
-# define cpu_vpe_id(cpuinfo)	0
+# define cpu_vpe_id(cpuinfo)	({ (void)cpuinfo; 0; })
 #endif
 
 #endif /* __ASM_CPU_INFO_H */
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h
index 129d08701e91..dfdc77ed1839 100644
--- a/arch/mips/include/asm/cpu.h
+++ b/arch/mips/include/asm/cpu.h
@@ -233,6 +233,8 @@
 #define PRID_REV_LOONGSON2E	0x0002
 #define PRID_REV_LOONGSON2F	0x0003
 #define PRID_REV_LOONGSON3A	0x0005
+#define PRID_REV_LOONGSON3B_R1	0x0006
+#define PRID_REV_LOONGSON3B_R2	0x0007
 
 /*
  * Older processors used to encode processor version and revision in two
@@ -335,34 +337,37 @@ enum cpu_type_enum {
 /*
  * CPU Option encodings
  */
-#define MIPS_CPU_TLB		0x00000001 /* CPU has TLB */
-#define MIPS_CPU_4KEX		0x00000002 /* "R4K" exception model */
-#define MIPS_CPU_3K_CACHE	0x00000004 /* R3000-style caches */
-#define MIPS_CPU_4K_CACHE	0x00000008 /* R4000-style caches */
-#define MIPS_CPU_TX39_CACHE	0x00000010 /* TX3900-style caches */
-#define MIPS_CPU_FPU		0x00000020 /* CPU has FPU */
-#define MIPS_CPU_32FPR		0x00000040 /* 32 dbl. prec. FP registers */
-#define MIPS_CPU_COUNTER	0x00000080 /* Cycle count/compare */
-#define MIPS_CPU_WATCH		0x00000100 /* watchpoint registers */
-#define MIPS_CPU_DIVEC		0x00000200 /* dedicated interrupt vector */
-#define MIPS_CPU_VCE		0x00000400 /* virt. coherence conflict possible */
-#define MIPS_CPU_CACHE_CDEX_P	0x00000800 /* Create_Dirty_Exclusive CACHE op */
-#define MIPS_CPU_CACHE_CDEX_S	0x00001000 /* ... same for seconary cache ... */
-#define MIPS_CPU_MCHECK		0x00002000 /* Machine check exception */
-#define MIPS_CPU_EJTAG		0x00004000 /* EJTAG exception */
-#define MIPS_CPU_NOFPUEX	0x00008000 /* no FPU exception */
-#define MIPS_CPU_LLSC		0x00010000 /* CPU has ll/sc instructions */
-#define MIPS_CPU_INCLUSIVE_CACHES	0x00020000 /* P-cache subset enforced */
-#define MIPS_CPU_PREFETCH	0x00040000 /* CPU has usable prefetch */
-#define MIPS_CPU_VINT		0x00080000 /* CPU supports MIPSR2 vectored interrupts */
-#define MIPS_CPU_VEIC		0x00100000 /* CPU supports MIPSR2 external interrupt controller mode */
-#define MIPS_CPU_ULRI		0x00200000 /* CPU has ULRI feature */
-#define MIPS_CPU_PCI		0x00400000 /* CPU has Perf Ctr Int indicator */
-#define MIPS_CPU_RIXI		0x00800000 /* CPU has TLB Read/eXec Inhibit */
-#define MIPS_CPU_MICROMIPS	0x01000000 /* CPU has microMIPS capability */
-#define MIPS_CPU_TLBINV		0x02000000 /* CPU supports TLBINV/F */
-#define MIPS_CPU_SEGMENTS	0x04000000 /* CPU supports Segmentation Control registers */
-#define MIPS_CPU_EVA		0x80000000 /* CPU supports Enhanced Virtual Addressing */
+#define MIPS_CPU_TLB		0x00000001ull /* CPU has TLB */
+#define MIPS_CPU_4KEX		0x00000002ull /* "R4K" exception model */
+#define MIPS_CPU_3K_CACHE	0x00000004ull /* R3000-style caches */
+#define MIPS_CPU_4K_CACHE	0x00000008ull /* R4000-style caches */
+#define MIPS_CPU_TX39_CACHE	0x00000010ull /* TX3900-style caches */
+#define MIPS_CPU_FPU		0x00000020ull /* CPU has FPU */
+#define MIPS_CPU_32FPR		0x00000040ull /* 32 dbl. prec. FP registers */
+#define MIPS_CPU_COUNTER	0x00000080ull /* Cycle count/compare */
+#define MIPS_CPU_WATCH		0x00000100ull /* watchpoint registers */
+#define MIPS_CPU_DIVEC		0x00000200ull /* dedicated interrupt vector */
+#define MIPS_CPU_VCE		0x00000400ull /* virt. coherence conflict possible */
+#define MIPS_CPU_CACHE_CDEX_P	0x00000800ull /* Create_Dirty_Exclusive CACHE op */
+#define MIPS_CPU_CACHE_CDEX_S	0x00001000ull /* ... same for seconary cache ... */
+#define MIPS_CPU_MCHECK		0x00002000ull /* Machine check exception */
+#define MIPS_CPU_EJTAG		0x00004000ull /* EJTAG exception */
+#define MIPS_CPU_NOFPUEX	0x00008000ull /* no FPU exception */
+#define MIPS_CPU_LLSC		0x00010000ull /* CPU has ll/sc instructions */
+#define MIPS_CPU_INCLUSIVE_CACHES	0x00020000ull /* P-cache subset enforced */
+#define MIPS_CPU_PREFETCH	0x00040000ull /* CPU has usable prefetch */
+#define MIPS_CPU_VINT		0x00080000ull /* CPU supports MIPSR2 vectored interrupts */
+#define MIPS_CPU_VEIC		0x00100000ull /* CPU supports MIPSR2 external interrupt controller mode */
+#define MIPS_CPU_ULRI		0x00200000ull /* CPU has ULRI feature */
+#define MIPS_CPU_PCI		0x00400000ull /* CPU has Perf Ctr Int indicator */
+#define MIPS_CPU_RIXI		0x00800000ull /* CPU has TLB Read/eXec Inhibit */
+#define MIPS_CPU_MICROMIPS	0x01000000ull /* CPU has microMIPS capability */
+#define MIPS_CPU_TLBINV		0x02000000ull /* CPU supports TLBINV/F */
+#define MIPS_CPU_SEGMENTS	0x04000000ull /* CPU supports Segmentation Control registers */
+#define MIPS_CPU_EVA		0x80000000ull /* CPU supports Enhanced Virtual Addressing */
+#define MIPS_CPU_HTW		0x100000000ull /* CPU support Hardware Page Table Walker */
+#define MIPS_CPU_RIXIEX		0x200000000ull /* CPU has unique exception codes for {Read, Execute}-Inhibit exceptions */
+#define MIPS_CPU_MAAR		0x400000000ull /* MAAR(I) registers are present */
 
 /*
  * CPU ASE encodings
diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index d4144056e928..1d38fe0edd2d 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -339,23 +339,6 @@ do {									\
 
 #endif /* CONFIG_64BIT */
 
-struct pt_regs;
-struct task_struct;
-
-extern void elf_dump_regs(elf_greg_t *, struct pt_regs *regs);
-extern int dump_task_regs(struct task_struct *, elf_gregset_t *);
-extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
-
-#ifndef ELF_CORE_COPY_REGS
-#define ELF_CORE_COPY_REGS(elf_regs, regs)			\
-	elf_dump_regs((elf_greg_t *)&(elf_regs), regs);
-#endif
-#ifndef ELF_CORE_COPY_TASK_REGS
-#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
-#endif
-#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs)			\
-	dump_task_fpu(tsk, elf_fpregs)
-
 #define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index a939574f8293..4d0aeda68397 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -21,6 +21,7 @@
 #include <asm/hazards.h>
 #include <asm/processor.h>
 #include <asm/current.h>
+#include <asm/msa.h>
 
 #ifdef CONFIG_MIPS_MT_FPAFF
 #include <asm/mips_mt.h>
@@ -141,13 +142,21 @@ static inline int own_fpu(int restore)
 static inline void lose_fpu(int save)
 {
 	preempt_disable();
-	if (is_fpu_owner()) {
+	if (is_msa_enabled()) {
+		if (save) {
+			save_msa(current);
+			asm volatile("cfc1 %0, $31"
+				: "=r"(current->thread.fpu.fcr31));
+		}
+		disable_msa();
+		clear_thread_flag(TIF_USEDMSA);
+	} else if (is_fpu_owner()) {
 		if (save)
 			_save_fp(current);
-		KSTK_STATUS(current) &= ~ST0_CU1;
-		clear_thread_flag(TIF_USEDFPU);
 		__disable_fpu();
 	}
+	KSTK_STATUS(current) &= ~ST0_CU1;
+	clear_thread_flag(TIF_USEDFPU);
 	preempt_enable();
 }
 
@@ -155,8 +164,6 @@ static inline int init_fpu(void)
 {
 	int ret = 0;
 
-	preempt_disable();
-
 	if (cpu_has_fpu) {
 		ret = __own_fpu();
 		if (!ret)
@@ -164,8 +171,6 @@ static inline int init_fpu(void)
 	} else
 		fpu_emulator_init_fpu();
 
-	preempt_enable();
-
 	return ret;
 }
 
diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h
index 10f6a99f92c2..3f20b2111d56 100644
--- a/arch/mips/include/asm/gic.h
+++ b/arch/mips/include/asm/gic.h
@@ -14,6 +14,8 @@
 #include <linux/bitmap.h>
 #include <linux/threads.h>
 
+#include <irq.h>
+
 #undef	GICISBYTELITTLEENDIAN
 
 /* Constants */
@@ -22,8 +24,6 @@
 #define GIC_TRIG_EDGE			1
 #define GIC_TRIG_LEVEL			0
 
-#define GIC_NUM_INTRS			(24 + NR_CPUS * 2)
-
 #define MSK(n) ((1 << (n)) - 1)
 #define REG32(addr)		(*(volatile unsigned int *) (addr))
 #define REG(base, offs)		REG32((unsigned long)(base) + offs##_##OFS)
@@ -43,18 +43,17 @@
 #ifdef GICISBYTELITTLEENDIAN
 #define GICREAD(reg, data)	((data) = (reg), (data) = le32_to_cpu(data))
 #define GICWRITE(reg, data)	((reg) = cpu_to_le32(data))
-#define GICBIS(reg, bits)			\
-	({unsigned int data;			\
-		GICREAD(reg, data);		\
-		data |= bits;			\
-		GICWRITE(reg, data);		\
-	})
-
 #else
 #define GICREAD(reg, data)	((data) = (reg))
 #define GICWRITE(reg, data)	((reg) = (data))
-#define GICBIS(reg, bits)	((reg) |= (bits))
 #endif
+#define GICBIS(reg, mask, bits)			\
+	do { u32 data;				\
+		GICREAD((reg), data);		\
+		data &= ~(mask);		\
+		data |= ((bits) & (mask));	\
+		GICWRITE((reg), data);		\
+	} while (0)
 
 
 /* GIC Address Space */
@@ -170,13 +169,15 @@
 #define GIC_SH_SET_POLARITY_OFS		0x0100
 #define GIC_SET_POLARITY(intr, pol) \
 	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_POLARITY_OFS + \
-		GIC_INTR_OFS(intr)), (pol) << GIC_INTR_BIT(intr))
+		GIC_INTR_OFS(intr)), (1 << GIC_INTR_BIT(intr)), \
+		(pol) << GIC_INTR_BIT(intr))
 
 /* Triggering : Reset Value is always 0 */
 #define GIC_SH_SET_TRIGGER_OFS		0x0180
 #define GIC_SET_TRIGGER(intr, trig) \
 	GICBIS(GIC_REG_ADDR(SHARED, GIC_SH_SET_TRIGGER_OFS + \
-		GIC_INTR_OFS(intr)), (trig) << GIC_INTR_BIT(intr))
+		GIC_INTR_OFS(intr)), (1 << GIC_INTR_BIT(intr)), \
+		(trig) << GIC_INTR_BIT(intr))
 
 /* Mask manipulation */
 #define GIC_SH_SMASK_OFS		0x0380
@@ -306,18 +307,6 @@
 	GICWRITE(GIC_REG_ADDR(SHARED, GIC_SH_MAP_TO_VPE_REG_OFF(intr, vpe)), \
 		 GIC_SH_MAP_TO_VPE_REG_BIT(vpe))
 
-struct gic_pcpu_mask {
-	DECLARE_BITMAP(pcpu_mask, GIC_NUM_INTRS);
-};
-
-struct gic_pending_regs {
-	DECLARE_BITMAP(pending, GIC_NUM_INTRS);
-};
-
-struct gic_intrmask_regs {
-	DECLARE_BITMAP(intrmask, GIC_NUM_INTRS);
-};
-
 /*
  * Interrupt Meta-data specification. The ipiflag helps
  * in building ipi_map.
@@ -329,8 +318,7 @@ struct gic_intr_map {
 	unsigned int polarity;	/* Polarity : +/-	*/
 	unsigned int trigtype;	/* Trigger  : Edge/Levl */
 	unsigned int flags;	/* Misc flags	*/
-#define GIC_FLAG_IPI	       0x01
-#define GIC_FLAG_TRANSPARENT   0x02
+#define GIC_FLAG_TRANSPARENT   0x01
 };
 
 /*
@@ -386,6 +374,7 @@ extern unsigned int plat_ipi_call_int_xlate(unsigned int);
 extern unsigned int plat_ipi_resched_int_xlate(unsigned int);
 extern void gic_bind_eic_interrupt(int irq, int set);
 extern unsigned int gic_get_timer_pending(void);
+extern void gic_get_int_mask(unsigned long *dst, const unsigned long *src);
 extern unsigned int gic_get_int(void);
 extern void gic_enable_interrupt(int irq_vec);
 extern void gic_disable_interrupt(int irq_vec);
diff --git a/arch/mips/include/asm/maar.h b/arch/mips/include/asm/maar.h
new file mode 100644
index 000000000000..6c62b0f899c0
--- /dev/null
+++ b/arch/mips/include/asm/maar.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (C) 2014 Imagination Technologies
+ * Author: Paul Burton <paul.burton@imgtec.com>
+ *
+ * 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.
+ */
+
+#ifndef __MIPS_ASM_MIPS_MAAR_H__
+#define __MIPS_ASM_MIPS_MAAR_H__
+
+#include <asm/hazards.h>
+#include <asm/mipsregs.h>
+
+/**
+ * platform_maar_init() - perform platform-level MAAR configuration
+ * @num_pairs:	The number of MAAR pairs present in the system.
+ *
+ * Platforms should implement this function such that it configures as many
+ * MAAR pairs as required, from 0 up to the maximum of num_pairs-1, and returns
+ * the number that were used. Any further MAARs will be configured to be
+ * invalid. The default implementation of this function will simply indicate
+ * that it has configured 0 MAAR pairs.
+ *
+ * Return:	The number of MAAR pairs configured.
+ */
+unsigned __weak platform_maar_init(unsigned num_pairs);
+
+/**
+ * write_maar_pair() - write to a pair of MAARs
+ * @idx:	The index of the pair (ie. use MAARs idx*2 & (idx*2)+1).
+ * @lower:	The lowest address that the MAAR pair will affect. Must be
+ *		aligned to a 2^16 byte boundary.
+ * @upper:	The highest address that the MAAR pair will affect. Must be
+ *		aligned to one byte before a 2^16 byte boundary.
+ * @attrs:	The accessibility attributes to program, eg. MIPS_MAAR_S. The
+ *		MIPS_MAAR_V attribute will automatically be set.
+ *
+ * Program the pair of MAAR registers specified by idx to apply the attributes
+ * specified by attrs to the range of addresses from lower to higher.
+ */
+static inline void write_maar_pair(unsigned idx, phys_addr_t lower,
+				   phys_addr_t upper, unsigned attrs)
+{
+	/* Addresses begin at bit 16, but are shifted right 4 bits */
+	BUG_ON(lower & (0xffff | ~(MIPS_MAAR_ADDR << 4)));
+	BUG_ON(((upper & 0xffff) != 0xffff)
+		|| ((upper & ~0xffffull) & ~(MIPS_MAAR_ADDR << 4)));
+
+	/* Automatically set MIPS_MAAR_V */
+	attrs |= MIPS_MAAR_V;
+
+	/* Write the upper address & attributes (only MIPS_MAAR_V matters) */
+	write_c0_maari(idx << 1);
+	back_to_back_c0_hazard();
+	write_c0_maar(((upper >> 4) & MIPS_MAAR_ADDR) | attrs);
+	back_to_back_c0_hazard();
+
+	/* Write the lower address & attributes */
+	write_c0_maari((idx << 1) | 0x1);
+	back_to_back_c0_hazard();
+	write_c0_maar((lower >> 4) | attrs);
+	back_to_back_c0_hazard();
+}
+
+/**
+ * struct maar_config - MAAR configuration data
+ * @lower:	The lowest address that the MAAR pair will affect. Must be
+ *		aligned to a 2^16 byte boundary.
+ * @upper:	The highest address that the MAAR pair will affect. Must be
+ *		aligned to one byte before a 2^16 byte boundary.
+ * @attrs:	The accessibility attributes to program, eg. MIPS_MAAR_S. The
+ *		MIPS_MAAR_V attribute will automatically be set.
+ *
+ * Describes the configuration of a pair of Memory Accessibility Attribute
+ * Registers - applying attributes from attrs to the range of physical
+ * addresses from lower to upper inclusive.
+ */
+struct maar_config {
+	phys_addr_t lower;
+	phys_addr_t upper;
+	unsigned attrs;
+};
+
+/**
+ * maar_config() - configure MAARs according to provided data
+ * @cfg:	Pointer to an array of struct maar_config.
+ * @num_cfg:	The number of structs in the cfg array.
+ * @num_pairs:	The number of MAAR pairs present in the system.
+ *
+ * Configures as many MAARs as are present and specified in the cfg
+ * array with the values taken from the cfg array.
+ *
+ * Return:	The number of MAAR pairs configured.
+ */
+static inline unsigned maar_config(const struct maar_config *cfg,
+				   unsigned num_cfg, unsigned num_pairs)
+{
+	unsigned i;
+
+	for (i = 0; i < min(num_cfg, num_pairs); i++)
+		write_maar_pair(i, cfg[i].lower, cfg[i].upper, cfg[i].attrs);
+
+	return i;
+}
+
+#endif /* __MIPS_ASM_MIPS_MAAR_H__ */
diff --git a/arch/mips/include/asm/mach-au1x00/au1000.h b/arch/mips/include/asm/mach-au1x00/au1000.h
index b4c3ecb17d48..a7eec3364a64 100644
--- a/arch/mips/include/asm/mach-au1x00/au1000.h
+++ b/arch/mips/include/asm/mach-au1x00/au1000.h
@@ -34,6 +34,558 @@
 #ifndef _AU1000_H_
 #define _AU1000_H_
 
+/* SOC Interrupt numbers */
+/* Au1000-style (IC0/1): 2 controllers with 32 sources each */
+#define AU1000_INTC0_INT_BASE	(MIPS_CPU_IRQ_BASE + 8)
+#define AU1000_INTC0_INT_LAST	(AU1000_INTC0_INT_BASE + 31)
+#define AU1000_INTC1_INT_BASE	(AU1000_INTC0_INT_LAST + 1)
+#define AU1000_INTC1_INT_LAST	(AU1000_INTC1_INT_BASE + 31)
+#define AU1000_MAX_INTR		AU1000_INTC1_INT_LAST
+
+/* Au1300-style (GPIC): 1 controller with up to 128 sources */
+#define ALCHEMY_GPIC_INT_BASE	(MIPS_CPU_IRQ_BASE + 8)
+#define ALCHEMY_GPIC_INT_NUM	128
+#define ALCHEMY_GPIC_INT_LAST	(ALCHEMY_GPIC_INT_BASE + ALCHEMY_GPIC_INT_NUM - 1)
+
+/* common clock names, shared among all variants. AUXPLL2 is Au1300 */
+#define ALCHEMY_ROOT_CLK		"root_clk"
+#define ALCHEMY_CPU_CLK			"cpu_clk"
+#define ALCHEMY_AUXPLL_CLK		"auxpll_clk"
+#define ALCHEMY_AUXPLL2_CLK		"auxpll2_clk"
+#define ALCHEMY_SYSBUS_CLK		"sysbus_clk"
+#define ALCHEMY_PERIPH_CLK		"periph_clk"
+#define ALCHEMY_MEM_CLK			"mem_clk"
+#define ALCHEMY_LR_CLK			"lr_clk"
+#define ALCHEMY_FG0_CLK			"fg0_clk"
+#define ALCHEMY_FG1_CLK			"fg1_clk"
+#define ALCHEMY_FG2_CLK			"fg2_clk"
+#define ALCHEMY_FG3_CLK			"fg3_clk"
+#define ALCHEMY_FG4_CLK			"fg4_clk"
+#define ALCHEMY_FG5_CLK			"fg5_clk"
+
+/* Au1300 peripheral interrupt numbers */
+#define AU1300_FIRST_INT	(ALCHEMY_GPIC_INT_BASE)
+#define AU1300_UART1_INT	(AU1300_FIRST_INT + 17)
+#define AU1300_UART2_INT	(AU1300_FIRST_INT + 25)
+#define AU1300_UART3_INT	(AU1300_FIRST_INT + 27)
+#define AU1300_SD1_INT		(AU1300_FIRST_INT + 32)
+#define AU1300_SD2_INT		(AU1300_FIRST_INT + 38)
+#define AU1300_PSC0_INT		(AU1300_FIRST_INT + 48)
+#define AU1300_PSC1_INT		(AU1300_FIRST_INT + 52)
+#define AU1300_PSC2_INT		(AU1300_FIRST_INT + 56)
+#define AU1300_PSC3_INT		(AU1300_FIRST_INT + 60)
+#define AU1300_NAND_INT		(AU1300_FIRST_INT + 62)
+#define AU1300_DDMA_INT		(AU1300_FIRST_INT + 75)
+#define AU1300_MMU_INT		(AU1300_FIRST_INT + 76)
+#define AU1300_MPU_INT		(AU1300_FIRST_INT + 77)
+#define AU1300_GPU_INT		(AU1300_FIRST_INT + 78)
+#define AU1300_UDMA_INT		(AU1300_FIRST_INT + 79)
+#define AU1300_TOY_INT		(AU1300_FIRST_INT + 80)
+#define AU1300_TOY_MATCH0_INT	(AU1300_FIRST_INT + 81)
+#define AU1300_TOY_MATCH1_INT	(AU1300_FIRST_INT + 82)
+#define AU1300_TOY_MATCH2_INT	(AU1300_FIRST_INT + 83)
+#define AU1300_RTC_INT		(AU1300_FIRST_INT + 84)
+#define AU1300_RTC_MATCH0_INT	(AU1300_FIRST_INT + 85)
+#define AU1300_RTC_MATCH1_INT	(AU1300_FIRST_INT + 86)
+#define AU1300_RTC_MATCH2_INT	(AU1300_FIRST_INT + 87)
+#define AU1300_UART0_INT	(AU1300_FIRST_INT + 88)
+#define AU1300_SD0_INT		(AU1300_FIRST_INT + 89)
+#define AU1300_USB_INT		(AU1300_FIRST_INT + 90)
+#define AU1300_LCD_INT		(AU1300_FIRST_INT + 91)
+#define AU1300_BSA_INT		(AU1300_FIRST_INT + 92)
+#define AU1300_MPE_INT		(AU1300_FIRST_INT + 93)
+#define AU1300_ITE_INT		(AU1300_FIRST_INT + 94)
+#define AU1300_AES_INT		(AU1300_FIRST_INT + 95)
+#define AU1300_CIM_INT		(AU1300_FIRST_INT + 96)
+
+/**********************************************************************/
+
+/*
+ * Physical base addresses for integrated peripherals
+ * 0..au1000 1..au1500 2..au1100 3..au1550 4..au1200 5..au1300
+ */
+
+#define AU1000_AC97_PHYS_ADDR		0x10000000 /* 012 */
+#define AU1300_ROM_PHYS_ADDR		0x10000000 /* 5 */
+#define AU1300_OTP_PHYS_ADDR		0x10002000 /* 5 */
+#define AU1300_VSS_PHYS_ADDR		0x10003000 /* 5 */
+#define AU1300_UART0_