Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build

Manual fixup of:

	arch/powerpc/Kconfig

6 files changed, 572 insertions, 30 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 33ed048..3a6c8ec 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -180,8 +180,21 @@ config CPU_ARM925T
 # ARM926T
 config CPU_ARM926T
 	bool "Support ARM926T processor"
-	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
-	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI
+	depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || \
+		MACH_VERSATILE_AB || ARCH_OMAP730 || \
+		ARCH_OMAP16XX || MACH_REALVIEW_EB || \
+		ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || \
+		ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || \
+		ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || \
+		ARCH_AT91SAM9G20 || ARCH_AT91CAP9 || \
+		ARCH_NS9XXX || ARCH_DAVINCI
+	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || \
+		ARCH_OMAP730 || ARCH_OMAP16XX || \
+		ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || \
+		ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || \
+		ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || \
+		ARCH_AT91SAM9G20 || ARCH_AT91CAP9 || \
+		ARCH_NS9XXX || ARCH_DAVINCI || ARCH_MX2
 	select CPU_32v5
 	select CPU_ABRT_EV5TJ
 	select CPU_PABRT_NOIFAR
@@ -365,7 +378,7 @@ config CPU_XSC3
 # Feroceon
 config CPU_FEROCEON
 	bool
-	depends on ARCH_ORION5X
+	depends on ARCH_ORION5X || ARCH_LOKI || ARCH_KIRKWOOD || ARCH_MV78XX0
 	default y
 	select CPU_32v5
 	select CPU_ABRT_EV5T
@@ -373,7 +386,7 @@ config CPU_FEROCEON
 	select CPU_CACHE_VIVT
 	select CPU_CP15_MMU
 	select CPU_COPY_FEROCEON if MMU
-	select CPU_TLB_V4WBI if MMU
+	select CPU_TLB_FEROCEON if MMU
 
 config CPU_FEROCEON_OLD_ID
 	bool "Accept early Feroceon cores with an ARM926 ID"
@@ -551,6 +564,11 @@ config CPU_TLB_V4WBI
 	  ARM Architecture Version 4 TLB with writeback cache and invalidate
 	  instruction cache entry.
 
+config CPU_TLB_FEROCEON
+	bool
+	help
+	  Feroceon TLB (v4wbi with non-outer-cachable page table walks).
+
 config CPU_TLB_V6
 	bool
 
@@ -709,6 +727,14 @@ config OUTER_CACHE
 	bool
 	default n
 
+config CACHE_FEROCEON_L2
+	bool "Enable the Feroceon L2 cache controller"
+	depends on ARCH_KIRKWOOD || ARCH_MV78XX0
+	default y
+	select OUTER_CACHE
+	help
+	  This option enables the Feroceon L2 cache controller.
+
 config CACHE_L2X0
 	bool "Enable the L2x0 outer cache controller"
 	depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 32b2d2d..f64b925 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -46,6 +46,7 @@ obj-$(CONFIG_CPU_TLB_V3)	+= tlb-v3.o
 obj-$(CONFIG_CPU_TLB_V4WT)	+= tlb-v4.o
 obj-$(CONFIG_CPU_TLB_V4WB)	+= tlb-v4wb.o
 obj-$(CONFIG_CPU_TLB_V4WBI)	+= tlb-v4wbi.o
+obj-$(CONFIG_CPU_TLB_FEROCEON)	+= tlb-v4wbi.o	# reuse v4wbi TLB functions
 obj-$(CONFIG_CPU_TLB_V6)	+= tlb-v6.o
 obj-$(CONFIG_CPU_TLB_V7)	+= tlb-v7.o
 
@@ -73,4 +74,5 @@ obj-$(CONFIG_CPU_FEROCEON)	+= proc-feroceon.o
 obj-$(CONFIG_CPU_V6)		+= proc-v6.o
 obj-$(CONFIG_CPU_V7)		+= proc-v7.o
 
+obj-$(CONFIG_CACHE_FEROCEON_L2)	+= cache-feroceon-l2.o
 obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c
new file mode 100644
index 0000000..20eec4b
--- /dev/null
+++ b/arch/arm/mm/cache-feroceon-l2.c
@@ -0,0 +1,318 @@
+/*
+ * arch/arm/mm/cache-feroceon-l2.c - Feroceon L2 cache controller support
+ *
+ * Copyright (C) 2008 Marvell Semiconductor
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * References:
+ * - Unified Layer 2 Cache for Feroceon CPU Cores,
+ *   Document ID MV-S104858-00, Rev. A, October 23 2007.
+ */
+
+#include <linux/init.h>
+#include <asm/cacheflush.h>
+#include <asm/plat-orion/cache-feroceon-l2.h>
+
+
+/*
+ * Low-level cache maintenance operations.
+ *
+ * As well as the regular 'clean/invalidate/flush L2 cache line by
+ * MVA' instructions, the Feroceon L2 cache controller also features
+ * 'clean/invalidate L2 range by MVA' operations.
+ *
+ * Cache range operations are initiated by writing the start and
+ * end addresses to successive cp15 registers, and process every
+ * cache line whose first byte address lies in the inclusive range
+ * [start:end].
+ *
+ * The cache range operations stall the CPU pipeline until completion.
+ *
+ * The range operations require two successive cp15 writes, in
+ * between which we don't want to be preempted.
+ */
+static inline void l2_clean_pa(unsigned long addr)
+{
+	__asm__("mcr p15, 1, %0, c15, c9, 3" : : "r" (addr));
+}
+
+static inline void l2_clean_mva_range(unsigned long start, unsigned long end)
+{
+	unsigned long flags;
+
+	/*
+	 * Make sure 'start' and 'end' reference the same page, as
+	 * L2 is PIPT and range operations only do a TLB lookup on
+	 * the start address.
+	 */
+	BUG_ON((start ^ end) & ~(PAGE_SIZE - 1));
+
+	raw_local_irq_save(flags);
+	__asm__("mcr p15, 1, %0, c15, c9, 4" : : "r" (start));
+	__asm__("mcr p15, 1, %0, c15, c9, 5" : : "r" (end));
+	raw_local_irq_restore(flags);
+}
+
+static inline void l2_clean_pa_range(unsigned long start, unsigned long end)
+{
+	l2_clean_mva_range(__phys_to_virt(start), __phys_to_virt(end));
+}
+
+static inline void l2_clean_inv_pa(unsigned long addr)
+{
+	__asm__("mcr p15, 1, %0, c15, c10, 3" : : "r" (addr));
+}
+
+static inline void l2_inv_pa(unsigned long addr)
+{
+	__asm__("mcr p15, 1, %0, c15, c11, 3" : : "r" (addr));
+}
+
+static inline void l2_inv_mva_range(unsigned long start, unsigned long end)
+{
+	unsigned long flags;
+
+	/*
+	 * Make sure 'start' and 'end' reference the same page, as
+	 * L2 is PIPT and range operations only do a TLB lookup on
+	 * the start address.
+	 */
+	BUG_ON((start ^ end) & ~(PAGE_SIZE - 1));
+
+	raw_local_irq_save(flags);
+	__asm__("mcr p15, 1, %0, c15, c11, 4" : : "r" (start));
+	__asm__("mcr p15, 1, %0, c15, c11, 5" : : "r" (end));
+	raw_local_irq_restore(flags);
+}
+
+static inline void l2_inv_pa_range(unsigned long start, unsigned long end)
+{
+	l2_inv_mva_range(__phys_to_virt(start), __phys_to_virt(end));
+}
+
+
+/*
+ * Linux primitives.
+ *
+ * Note that the end addresses passed to Linux primitives are
+ * noninclusive, while the hardware cache range operations use
+ * inclusive start and end addresses.
+ */
+#define CACHE_LINE_SIZE		32
+#define MAX_RANGE_SIZE		1024
+
+static int l2_wt_override;
+
+static unsigned long calc_range_end(unsigned long start, unsigned long end)
+{
+	unsigned long range_end;
+
+	BUG_ON(start & (CACHE_LINE_SIZE - 1));
+	BUG_ON(end & (CACHE_LINE_SIZE - 1));
+
+	/*
+	 * Try to process all cache lines between 'start' and 'end'.
+	 */
+	range_end = end;
+
+	/*
+	 * Limit the number of cache lines processed at once,
+	 * since cache range operations stall the CPU pipeline
+	 * until completion.
+	 */
+	if (range_end > start + MAX_RANGE_SIZE)
+		range_end = start + MAX_RANGE_SIZE;
+
+	/*
+	 * Cache range operations can't straddle a page boundary.
+	 */
+	if (range_end > (start | (PAGE_SIZE - 1)) + 1)
+		range_end = (start | (PAGE_SIZE - 1)) + 1;
+
+	return range_end;
+}
+
+static void feroceon_l2_inv_range(unsigned long start, unsigned long end)
+{
+	/*
+	 * Clean and invalidate partial first cache line.
+	 */
+	if (start & (CACHE_LINE_SIZE - 1)) {
+		l2_clean_inv_pa(start & ~(CACHE_LINE_SIZE - 1));
+		start = (start | (CACHE_LINE_SIZE - 1)) + 1;
+	}
+
+	/*
+	 * Clean and invalidate partial last cache line.
+	 */
+	if (end & (CACHE_LINE_SIZE - 1)) {
+		l2_clean_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
+		end &= ~(CACHE_LINE_SIZE - 1);
+	}
+
+	/*
+	 * Invalidate all full cache lines between 'start' and 'end'.
+	 */
+	while (start != end) {
+		unsigned long range_end = calc_range_end(start, end);
+		l2_inv_pa_range(start, range_end - CACHE_LINE_SIZE);
+		start = range_end;
+	}
+
+	dsb();
+}
+
+static void feroceon_l2_clean_range(unsigned long start, unsigned long end)
+{
+	/*
+	 * If L2 is forced to WT, the L2 will always be clean and we
+	 * don't need to do anything here.
+	 */
+	if (!l2_wt_override) {
+		start &= ~(CACHE_LINE_SIZE - 1);
+		end = (end + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1);
+		while (start != end) {
+			unsigned long range_end = calc_range_end(start, end);
+			l2_clean_pa_range(start, range_end - CACHE_LINE_SIZE);
+			start = range_end;
+		}
+	}
+
+	dsb();
+}
+
+static void feroceon_l2_flush_range(unsigned long start, unsigned long end)
+{
+	start &= ~(CACHE_LINE_SIZE - 1);
+	end = (end + CACHE_LINE_SIZE - 1) & ~(CACHE_LINE_SIZE - 1);
+	while (start != end) {
+		unsigned long range_end = calc_range_end(start, end);
+		if (!l2_wt_override)
+			l2_clean_pa_range(start, range_end - CACHE_LINE_SIZE);
+		l2_inv_pa_range(start, range_end - CACHE_LINE_SIZE);
+		start = range_end;
+	}
+
+	dsb();
+}
+
+
+/*
+ * Routines to disable and re-enable the D-cache and I-cache at run
+ * time.  These are necessary because the L2 cache can only be enabled
+ * or disabled while the L1 Dcache and Icache are both disabled.
+ */
+static void __init invalidate_and_disable_dcache(void)
+{
+	u32 cr;
+
+	cr = get_cr();
+	if (cr & CR_C) {
+		unsigned long flags;
+
+		raw_local_irq_save(flags);
+		flush_cache_all();
+		set_cr(cr & ~CR_C);
+		raw_local_irq_restore(flags);
+	}
+}
+
+static void __init enable_dcache(void)
+{
+	u32 cr;
+
+	cr = get_cr();
+	if (!(cr & CR_C))
+		set_cr(cr | CR_C);
+}
+
+static void __init __invalidate_icache(void)
+{
+	int dummy;
+
+	__asm__ __volatile__("mcr p15, 0, %0, c7, c5, 0\n" : "=r" (dummy));
+}
+
+static void __init invalidate_and_disable_icache(void)
+{
+	u32 cr;
+
+	cr = get_cr();
+	if (cr & CR_I) {
+		set_cr(cr & ~CR_I);
+		__invalidate_icache();
+	}
+}
+
+static void __init enable_icache(void)
+{
+	u32 cr;
+
+	cr = get_cr();
+	if (!(cr & CR_I))
+		set_cr(cr | CR_I);
+}
+
+static inline u32 read_extra_features(void)
+{
+	u32 u;
+
+	__asm__("mrc p15, 1, %0, c15, c1, 0" : "=r" (u));
+
+	return u;
+}
+
+static inline void write_extra_features(u32 u)
+{
+	__asm__("mcr p15, 1, %0, c15, c1, 0" : : "r" (u));
+}
+
+static void __init disable_l2_prefetch(void)
+{
+	u32 u;
+
+	/*
+	 * Read the CPU Extra Features register and verify that the
+	 * Disable L2 Prefetch bit is set.
+	 */
+	u = read_extra_features();
+	if (!(u & 0x01000000)) {
+		printk(KERN_INFO "Feroceon L2: Disabling L2 prefetch.\n");
+		write_extra_features(u | 0x01000000);
+	}
+}
+
+static void __init enable_l2(void)
+{
+	u32 u;
+
+	u = read_extra_features();
+	if (!(u & 0x00400000)) {
+		printk(KERN_INFO "Feroceon L2: Enabling L2\n");
+
+		invalidate_and_disable_dcache();
+		invalidate_and_disable_icache();
+		write_extra_features(u | 0x00400000);
+		enable_icache();
+		enable_dcache();
+	}
+}
+
+void __init feroceon_l2_init(int __l2_wt_override)
+{
+	l2_wt_override = __l2_wt_override;
+
+	disable_l2_prefetch();
+
+	outer_cache.inv_range = feroceon_l2_inv_range;
+	outer_cache.clean_range = feroceon_l2_clean_range;
+	outer_cache.flush_range = feroceon_l2_flush_range;
+
+	enable_l2();
+
+	printk(KERN_INFO "Feroceon L2: Cache support initialised%s.\n",
+			 l2_wt_override ? ", in WT override mode" : "");
+}
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 44558d5..fbfa260 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -144,13 +144,17 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t pte)
 	page = pfn_to_page(pfn);
 	mapping = page_mapping(page);
 	if (mapping) {
+#ifndef CONFIG_SMP
 		int dirty = test_and_clear_bit(PG_dcache_dirty, &page->flags);
 
 		if (dirty)
 			__flush_dcache_page(mapping, page);
+#endif
 
 		if (cache_is_vivt())
 			make_coherent(mapping, vma, addr, pfn);
+		else if (vma->vm_flags & VM_EXEC)
+			__flush_icache_all();
 	}
 }
 
diff --git a/arch/arm/mm/flush.c b/arch/arm/mm/flush.c
index 9df507d..029ee65 100644
--- a/arch/arm/mm/flush.c
+++ b/arch/arm/mm/flush.c
@@ -199,6 +199,8 @@ void flush_dcache_page(struct page *page)
 		__flush_dcache_page(mapping, page);
 		if (mapping && cache_is_vivt())
 			__flush_dcache_aliases(mapping, page);
+		else if (mapping)
+			__flush_icache_all();
 	}
 }
 EXPORT_SYMBOL(flush_dcache_page);
diff --git a/arch/arm/mm/proc-feroceon.S b/arch/arm/mm/proc-feroceon.S
index a02c171..f2e5884 100644
--- a/arch/arm/mm/proc-feroceon.S
+++ b/arch/arm/mm/proc-feroceon.S
@@ -44,11 +44,31 @@
  */
 #define CACHE_DLINESIZE	32
 
+	.bss
+	.align 3
+__cache_params_loc:
+	.space	8
+
 	.text
+__cache_params:
+	.word	__cache_params_loc
+
 /*
  * cpu_feroceon_proc_init()
  */
 ENTRY(cpu_feroceon_proc_init)
+	mrc	p15, 0, r0, c0, c0, 1		@ read cache type register
+	ldr	r1, __cache_params
+	mov	r2, #(16 << 5)
+	tst	r0, #(1 << 16)			@ get way
+	mov	r0, r0, lsr #18			@ get cache size order
+	movne	r3, #((4 - 1) << 30)		@ 4-way
+	and	r0, r0, #0xf
+	moveq	r3, #0				@ 1-way
+	mov	r2, r2, lsl r0			@ actual cache size
+	movne	r2, r2, lsr #2			@ turned into # of sets
+	sub	r2, r2, #(1 << 5)
+	stmia	r1, {r2, r3}
 	mov	pc, lr
 
 /*
@@ -59,6 +79,13 @@ ENTRY(cpu_feroceon_proc_fin)
 	mov	ip, #PSR_F_BIT | PSR_I_BIT | SVC_MODE
 	msr	cpsr_c, ip
 	bl	feroceon_flush_kern_cache_all
+
+#if defined(CONFIG_CACHE_FEROCEON_L2) && !defined(CONFIG_L2_CACHE_WRITETHROUGH)
+	mov	r0, #0
+	mcr	p15, 1, r0, c15, c9, 0		@ clean L2
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+#endif
+
 	mrc	p15, 0, r0, c1, c0, 0		@ ctrl register
 	bic	r0, r0, #0x1000			@ ...i............
 	bic	r0, r0, #0x000e			@ ............wca.
@@ -117,11 +144,19 @@ ENTRY(feroceon_flush_user_cache_all)
  */
 ENTRY(feroceon_flush_kern_cache_all)
 	mov	r2, #VM_EXEC
-	mov	ip, #0
+
 __flush_whole_cache:
-1:	mrc	p15, 0, r15, c7, c14, 3 	@ test,clean,invalidate
-	bne	1b
+	ldr	r1, __cache_params
+	ldmia	r1, {r1, r3}
+1:	orr	ip, r1, r3
+2:	mcr	p15, 0, ip, c7, c14, 2		@ clean + invalidate D set/way
+	subs	ip, ip, #(1 << 30)		@ next way
+	bcs	2b
+	subs	r1, r1, #(1 << 5)		@ next set
+	bcs	1b
+
 	tst	r2, #VM_EXEC
+	mov	ip, #0
 	mcrne	p15, 0, ip, c7, c5, 0		@ invalidate I cache
 	mcrne	p15, 0, ip, c7, c10, 4		@ drain WB
 	mov	pc, lr
@@ -138,7 +173,6 @@ __flush_whole_cache:
  */
 	.align	5
 ENTRY(feroceon_flush_user_cache_range)
-	mov	ip, #0
 	sub	r3, r1, r0			@ calculate total size
 	cmp	r3, #CACHE_DLIMIT
 	bgt	__flush_whole_cache
@@ -152,6 +186,7 @@ ENTRY(feroceon_flush_user_cache_range)
 	cmp	r0, r1
 	blo	1b
 	tst	r2, #VM_EXEC
+	mov	ip, #0
 	mcrne	p15, 0, ip, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
@@ -209,6 +244,20 @@ ENTRY(feroceon_flush_kern_dcache_page)
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
+	.align	5
+ENTRY(feroceon_range_flush_kern_dcache_page)
+	mrs	r2, cpsr
+	add	r1, r0, #PAGE_SZ - CACHE_DLINESIZE	@ top addr is inclusive
+	orr	r3, r2, #PSR_I_BIT
+	msr	cpsr_c, r3			@ disable interrupts
+	mcr	p15, 5, r0, c15, c15, 0		@ D clean/inv range start
+	mcr	p15, 5, r1, c15, c15, 1		@ D clean/inv range top
+	msr	cpsr_c, r2			@ restore interrupts
+	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 0		@ invalidate I cache
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
 /*
  *	dma_inv_range(start, end)
  *
@@ -225,10 +274,10 @@ ENTRY(feroceon_flush_kern_dcache_page)
 	.align	5
 ENTRY(feroceon_dma_inv_range)
 	tst	r0, #CACHE_DLINESIZE - 1
+	bic	r0, r0, #CACHE_DLINESIZE - 1
 	mcrne	p15, 0, r0, c7, c10, 1		@ clean D entry
 	tst	r1, #CACHE_DLINESIZE - 1
 	mcrne	p15, 0, r1, c7, c10, 1		@ clean D entry
-	bic	r0, r0, #CACHE_DLINESIZE - 1
 1:	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
 	add	r0, r0, #CACHE_DLINESIZE
 	cmp	r0, r1
@@ -236,6 +285,22 @@ ENTRY(feroceon_dma_inv_range)
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
+	.align	5
+ENTRY(feroceon_range_dma_inv_range)
+	mrs	r2, cpsr
+	tst	r0, #CACHE_DLINESIZE - 1
+	mcrne	p15, 0, r0, c7, c10, 1		@ clean D entry
+	tst	r1, #CACHE_DLINESIZE - 1
+	mcrne	p15, 0, r1, c7, c10, 1		@ clean D entry
+	cmp	r1, r0
+	subne	r1, r1, #1			@ top address is inclusive
+	orr	r3, r2, #PSR_I_BIT
+	msr	cpsr_c, r3			@ disable interrupts
+	mcr	p15, 5, r0, c15, c14, 0		@ D inv range start
+	mcr	p15, 5, r1, c15, c14, 1		@ D inv range top
+	msr	cpsr_c, r2			@ restore interrupts
+	mov	pc, lr
+
 /*
  *	dma_clean_range(start, end)
  *
@@ -256,6 +321,19 @@ ENTRY(feroceon_dma_clean_range)
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
+	.align	5
+ENTRY(feroceon_range_dma_clean_range)
+	mrs	r2, cpsr
+	cmp	r1, r0
+	subne	r1, r1, #1			@ top address is inclusive
+	orr	r3, r2, #PSR_I_BIT
+	msr	cpsr_c, r3			@ disable interrupts
+	mcr	p15, 5, r0, c15, c13, 0		@ D clean range start
+	mcr	p15, 5, r1, c15, c13, 1		@ D clean range top
+	msr	cpsr_c, r2			@ restore interrupts
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
 /*
  *	dma_flush_range(start, end)
  *
@@ -274,6 +352,19 @@ ENTRY(feroceon_dma_flush_range)
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
+	.align	5
+ENTRY(feroceon_range_dma_flush_range)
+	mrs	r2, cpsr
+	cmp	r1, r0
+	subne	r1, r1, #1			@ top address is inclusive
+	orr	r3, r2, #PSR_I_BIT
+	msr	cpsr_c, r3			@ disable interrupts
+	mcr	p15, 5, r0, c15, c15, 0		@ D clean/inv range start
+	mcr	p15, 5, r1, c15, c15, 1		@ D clean/inv range top
+	msr	cpsr_c, r2			@ restore interrupts
+	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
+	mov	pc, lr
+
 ENTRY(feroceon_cache_fns)
 	.long	feroceon_flush_kern_cache_all
 	.long	feroceon_flush_user_cache_all
@@ -285,12 +376,33 @@ ENTRY(feroceon_cache_fns)
 	.long	feroceon_dma_clean_range
 	.long	feroceon_dma_flush_range
 
+ENTRY(feroceon_range_cache_fns)
+	.long	feroceon_flush_kern_cache_all
+	.long	feroceon_flush_user_cache_all
+	.long	feroceon_flush_user_cache_range
+	.long	feroceon_coherent_kern_range
+	.long	feroceon_coherent_user_range
+	.long	feroceon_range_flush_kern_dcache_page
+	.long	feroceon_range_dma_inv_range
+	.long	feroceon_range_dma_clean_range
+	.long	feroceon_range_dma_flush_range
+
 	.align	5
 ENTRY(cpu_feroceon_dcache_clean_area)
+#if defined(CONFIG_CACHE_FEROCEON_L2) && !defined(CONFIG_L2_CACHE_WRITETHROUGH)
+	mov	r2, r0
+	mov	r3, r1
+#endif
 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
 	add	r0, r0, #CACHE_DLINESIZE
 	subs	r1, r1, #CACHE_DLINESIZE
 	bhi	1b
+#if defined(CONFIG_CACHE_FEROCEON_L2) && !defined(CONFIG_L2_CACHE_WRITETHROUGH)
+1:	mcr	p15, 1, r2, c15, c9, 1		@ clean L2 entry
+	add	r2, r2, #CACHE_DLINESIZE
+	subs	r3, r3, #CACHE_DLINESIZE
+	bhi	1b
+#endif
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 	mov	pc, lr
 
@@ -306,16 +418,25 @@ ENTRY(cpu_feroceon_dcache_clean_area)
 	.align	5
 ENTRY(cpu_feroceon_switch_mm)
 #ifdef CONFIG_MMU
-	mov	ip, #0
-@ && 'Clean & Invalidate whole DCache'
-1:	mrc	p15, 0, r15, c7, c14, 3 	@ test,clean,invalidate
-	bne	1b
-	mcr	p15, 0, ip, c7, c5, 0		@ invalidate I cache
-	mcr	p15, 0, ip, c7, c10, 4		@ drain WB
+	/*
+	 * Note: we wish to call __flush_whole_cache but we need to preserve
+	 * lr to do so.  The only way without touching main memory is to
+	 * use r2 which is normally used to test the VM_EXEC flag, and
+	 * compensate locally for the skipped ops if it is not set.
+	 */
+	mov	r2, lr				@ abuse r2 to preserve lr
+	bl	__flush_whole_cache
+	@ if r2 contains the VM_EXEC bit then the next 2 ops are done already
+	tst	r2, #VM_EXEC
+	mcreq	p15, 0, ip, c7, c5, 0		@ invalidate I cache
+	mcreq	p15, 0, ip, c7, c10, 4		@ drain WB
+
 	mcr	p15, 0, r0, c2, c0, 0		@ load page table pointer
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I & D TLBs
-#endif
+	mov	pc, r2
+#else
 	mov	pc, lr
+#endif
 
 /*
  * cpu_feroceon_set_pte_ext(ptep, pte, ext)
@@ -345,6 +466,9 @@ ENTRY(cpu_feroceon_set_pte_ext)
 	str	r2, [r0]			@ hardware version
 	mov	r0, r0
 	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
+#if defined(CONFIG_CACHE_FEROCEON_L2) && !defined(CONFIG_L2_CACHE_WRITETHROUGH)
+	mcr	p15, 1, r0, c15, c9, 1		@ clean L2 entry
+#endif
 	mcr	p15, 0, r0, c7, c10, 4		@ drain WB
 #endif
 	mov	pc, lr
@@ -369,14 +493,15 @@ __feroceon_setup:
 	.size	__feroceon_setup, . - __feroceon_setup
 
 	/*
-	 *  R
-	 * .RVI ZFRS BLDP WCAM
-	 * .011 0001 ..11 0101
+	 *      B
+	 *  R   P
+	 * .RVI UFRS BLDP WCAM
+	 * .011 .001 ..11 0101
 	 *
 	 */
 	.type	feroceon_crval, #object
 feroceon_crval:
-	crval	clear=0x00007f3f, mmuset=0x00003135, ucset=0x00001134
+	crval	clear=0x0000773f, mmuset=0x00003135, ucset=0x00001134
 
 	__INITDATA
 
@@ -414,6 +539,21 @@ cpu_feroceon_name:
 	.asciz	"Feroceon"
 	.size	cpu_feroceon_name, . - cpu_feroceon_name
 
+	.type	cpu_88fr531_name, #object
+cpu_88fr531_name:
+	.asciz	"Feroceon 88FR531-vd"
+	.size	cpu_88fr531_name, . - cpu_88fr531_name
+
+	.type	cpu_88fr571_name, #object
+cpu_88fr571_name:
+	.asciz	"Feroceon 88FR571-vd"
+	.size	cpu_88fr571_name, . - cpu_88fr571_name
+
+	.type	cpu_88fr131_name, #object
+cpu_88fr131_name:
+	.asciz	"Feroceon 88FR131"
+	.size	cpu_88fr131_name, . - cpu_88fr131_name
+
 	.align
 
 	.section ".proc.info.init", #alloc, #execinstr
@@ -421,15 +561,15 @@ cpu_feroceon_name:
 #ifdef CONFIG_CPU_FEROCEON_OLD_ID
 	.type	__feroceon_old_id_proc_info,#object
 __feroceon_old_id_proc_info:
-	.long	0x41069260
-	.long	0xfffffff0
-	.long   PMD_TYPE_SECT | \
+	.long	0x41009260
+	.long	0xff00fff0
+	.long	PMD_TYPE_SECT | \
 		PMD_SECT_BUFFERABLE | \
 		PMD_SECT_CACHEABLE | \
 		PMD_BIT4 | \
 		PMD_SECT_AP_WRITE | \
 		PMD_SECT_AP_READ
-	.long   PMD_TYPE_SECT | \
+	.long	PMD_TYPE_SECT | \
 		PMD_BIT4 | \
 		PMD_SECT_AP_WRITE | \
 		PMD_SECT_AP_READ
@@ -445,17 +585,17 @@ __feroceon_old_id_proc_info:
 	.size	__feroceon_old_id_proc_info, . - __feroceon_old_id_proc_info
 #endif
 
-	.type	__feroceon_proc_info,#object
-__feroceon_proc_info:
+	.type	__88fr531_proc_info,#object
+__88fr531_proc_info:
 	.long	0x56055310
 	.long	0xfffffff0
-	.long   PMD_TYPE_SECT | \
+	.long	PMD_TYPE_SECT | \
 		PMD_SECT_BUFFERABLE | \
 		PMD_SECT_CACHEABLE | \
 		PMD_BIT4 | \
 		PMD_SECT_AP_WRITE | \
 		PMD_SECT_AP_READ
-	.long   PMD_TYPE_SECT | \
+	.long	PMD_TYPE_SECT | \
 		PMD_BIT4 | \
 		PMD_SECT_AP_WRITE | \
 		PMD_SECT_AP_READ
@@ -463,9 +603,59 @@ __feroceon_proc_info:
 	.long	cpu_arch_name
 	.long	cpu_elf_name
 	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
-	.long	cpu_feroceon_name
+	.long	cpu_88fr531_name
 	.long	feroceon_processor_functions
 	.long	v4wbi_tlb_fns
 	.long	feroceon_user_fns
 	.long	feroceon_cache_fns
-	.size	__feroceon_proc_info, . - __feroceon_proc_info
+	.size	__88fr531_proc_info, . - __88fr531_proc_info
+
+	.type	__88fr571_proc_info,#object
+__88fr571_proc_info:
+	.long	0x56155710
+	.long	0xfffffff0
+	.long	PMD_TYPE_SECT | \
+		PMD_SECT_BUFFERABLE | \
+		PMD_SECT_CACHEABLE | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	.long	PMD_TYPE_SECT | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	b	__feroceon_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_88fr571_name
+	.long	feroceon_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	feroceon_user_fns
+	.long	feroceon_range_cache_fns
+	.size	__88fr571_proc_info, . - __88fr571_proc_info
+
+	.type	__88fr131_proc_info,#object
+__88fr131_proc_info:
+	.long	0x56251310
+	.long	0xfffffff0
+	.long	PMD_TYPE_SECT | \
+		PMD_SECT_BUFFERABLE | \
+		PMD_SECT_CACHEABLE | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	.long	PMD_TYPE_SECT | \
+		PMD_BIT4 | \
+		PMD_SECT_AP_WRITE | \
+		PMD_SECT_AP_READ
+	b	__feroceon_setup
+	.long	cpu_arch_name
+	.long	cpu_elf_name
+	.long	HWCAP_SWP|HWCAP_HALF|HWCAP_THUMB|HWCAP_FAST_MULT|HWCAP_EDSP
+	.long	cpu_88fr131_name
+	.long	feroceon_processor_functions
+	.long	v4wbi_tlb_fns
+	.long	feroceon_user_fns
+	.long	feroceon_range_cache_fns
+	.size	__88fr131_proc_info, . - __88fr131_proc_info