17 files changed, 307 insertions, 47 deletions

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 3a6c8ec34cd..ed15f876c72 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -187,7 +187,7 @@ config CPU_ARM926T
 		ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || \
 		ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || \
 		ARCH_AT91SAM9G20 || ARCH_AT91CAP9 || \
-		ARCH_NS9XXX || ARCH_DAVINCI
+		ARCH_NS9XXX || ARCH_DAVINCI || ARCH_MX2
 	default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || \
 		ARCH_OMAP730 || ARCH_OMAP16XX || \
 		ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || \
@@ -742,3 +742,11 @@ config CACHE_L2X0
 	select OUTER_CACHE
 	help
 	  This option enables the L2x0 PrimeCell.
+
+config CACHE_XSC3L2
+	bool "Enable the L2 cache on XScale3"
+	depends on CPU_XSC3
+	default y
+	select OUTER_CACHE
+	help
+	  This option enables the L2 cache on XScale3.
diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c
index 20eec4ba173..7b5a25d8157 100644
--- a/arch/arm/mm/cache-feroceon-l2.c
+++ b/arch/arm/mm/cache-feroceon-l2.c
@@ -14,7 +14,7 @@
 
 #include <linux/init.h>
 #include <asm/cacheflush.h>
-#include <asm/plat-orion/cache-feroceon-l2.h>
+#include <plat/cache-feroceon-l2.h>
 
 
 /*
diff --git a/arch/arm/mm/cache-v3.S b/arch/arm/mm/cache-v3.S
index e1994788cf0..3b3639eb7ca 100644
--- a/arch/arm/mm/cache-v3.S
+++ b/arch/arm/mm/cache-v3.S
@@ -9,7 +9,7 @@
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/page.h>
 #include "proc-macros.S"
 
diff --git a/arch/arm/mm/cache-v4.S b/arch/arm/mm/cache-v4.S
index b2908063ed6..33926c9fcda 100644
--- a/arch/arm/mm/cache-v4.S
+++ b/arch/arm/mm/cache-v4.S
@@ -9,7 +9,7 @@
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/page.h>
 #include "proc-macros.S"
 
diff --git a/arch/arm/mm/cache-v4wt.S b/arch/arm/mm/cache-v4wt.S
index 9bcabd86c6f..51a9b0b273b 100644
--- a/arch/arm/mm/cache-v4wt.S
+++ b/arch/arm/mm/cache-v4wt.S
@@ -13,7 +13,7 @@
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/page.h>
 #include "proc-macros.S"
 
diff --git a/arch/arm/mm/cache-xsc3l2.c b/arch/arm/mm/cache-xsc3l2.c
new file mode 100644
index 00000000000..158bd96763d
--- /dev/null
+++ b/arch/arm/mm/cache-xsc3l2.c
@@ -0,0 +1,182 @@
+/*
+ * arch/arm/mm/cache-xsc3l2.c - XScale3 L2 cache controller support
+ *
+ * Copyright (C) 2007 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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/init.h>
+#include <linux/spinlock.h>
+
+#include <asm/system.h>
+#include <asm/cacheflush.h>
+#include <asm/io.h>
+
+#define CR_L2	(1 << 26)
+
+#define CACHE_LINE_SIZE		32
+#define CACHE_LINE_SHIFT	5
+#define CACHE_WAY_PER_SET	8
+
+#define CACHE_WAY_SIZE(l2ctype)	(8192 << (((l2ctype) >> 8) & 0xf))
+#define CACHE_SET_SIZE(l2ctype)	(CACHE_WAY_SIZE(l2ctype) >> CACHE_LINE_SHIFT)
+
+static inline int xsc3_l2_present(void)
+{
+	unsigned long l2ctype;
+
+	__asm__("mrc p15, 1, %0, c0, c0, 1" : "=r" (l2ctype));
+
+	return !!(l2ctype & 0xf8);
+}
+
+static inline void xsc3_l2_clean_mva(unsigned long addr)
+{
+	__asm__("mcr p15, 1, %0, c7, c11, 1" : : "r" (addr));
+}
+
+static inline void xsc3_l2_clean_pa(unsigned long addr)
+{
+	xsc3_l2_clean_mva(__phys_to_virt(addr));
+}
+
+static inline void xsc3_l2_inv_mva(unsigned long addr)
+{
+	__asm__("mcr p15, 1, %0, c7, c7, 1" : : "r" (addr));
+}
+
+static inline void xsc3_l2_inv_pa(unsigned long addr)
+{
+	xsc3_l2_inv_mva(__phys_to_virt(addr));
+}
+
+static inline void xsc3_l2_inv_all(void)
+{
+	unsigned long l2ctype, set_way;
+	int set, way;
+
+	__asm__("mrc p15, 1, %0, c0, c0, 1" : "=r" (l2ctype));
+
+	for (set = 0; set < CACHE_SET_SIZE(l2ctype); set++) {
+		for (way = 0; way < CACHE_WAY_PER_SET; way++) {
+			set_way = (way << 29) | (set << 5);
+			__asm__("mcr p15, 1, %0, c7, c11, 2" : : "r"(set_way));
+		}
+	}
+
+	dsb();
+}
+
+static void xsc3_l2_inv_range(unsigned long start, unsigned long end)
+{
+	if (start == 0 && end == -1ul) {
+		xsc3_l2_inv_all();
+		return;
+	}
+
+	/*
+	 * Clean and invalidate partial first cache line.
+	 */
+	if (start & (CACHE_LINE_SIZE - 1)) {
+		xsc3_l2_clean_pa(start & ~(CACHE_LINE_SIZE - 1));
+		xsc3_l2_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)) {
+		xsc3_l2_clean_pa(end & ~(CACHE_LINE_SIZE - 1));
+		xsc3_l2_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
+		end &= ~(CACHE_LINE_SIZE - 1);
+	}
+
+	/*
+	 * Invalidate all full cache lines between 'start' and 'end'.
+	 */
+	while (start != end) {
+		xsc3_l2_inv_pa(start);
+		start += CACHE_LINE_SIZE;
+	}
+
+	dsb();
+}
+
+static void xsc3_l2_clean_range(unsigned long start, unsigned long end)
+{
+	start &= ~(CACHE_LINE_SIZE - 1);
+	while (start < end) {
+		xsc3_l2_clean_pa(start);
+		start += CACHE_LINE_SIZE;
+	}
+
+	dsb();
+}
+
+/*
+ * optimize L2 flush all operation by set/way format
+ */
+static inline void xsc3_l2_flush_all(void)
+{
+	unsigned long l2ctype, set_way;
+	int set, way;
+
+	__asm__("mrc p15, 1, %0, c0, c0, 1" : "=r" (l2ctype));
+
+	for (set = 0; set < CACHE_SET_SIZE(l2ctype); set++) {
+		for (way = 0; way < CACHE_WAY_PER_SET; way++) {
+			set_way = (way << 29) | (set << 5);
+			__asm__("mcr p15, 1, %0, c7, c15, 2" : : "r"(set_way));
+		}
+	}
+
+	dsb();
+}
+
+static void xsc3_l2_flush_range(unsigned long start, unsigned long end)
+{
+	if (start == 0 && end == -1ul) {
+		xsc3_l2_flush_all();
+		return;
+	}
+
+	start &= ~(CACHE_LINE_SIZE - 1);
+	while (start < end) {
+		xsc3_l2_clean_pa(start);
+		xsc3_l2_inv_pa(start);
+		start += CACHE_LINE_SIZE;
+	}
+
+	dsb();
+}
+
+static int __init xsc3_l2_init(void)
+{
+	if (!cpu_is_xsc3() || !xsc3_l2_present())
+		return 0;
+
+	if (!(get_cr() & CR_L2)) {
+		pr_info("XScale3 L2 cache enabled.\n");
+		adjust_cr(CR_L2, CR_L2);
+		xsc3_l2_inv_all();
+	}
+
+	outer_cache.inv_range = xsc3_l2_inv_range;
+	outer_cache.clean_range = xsc3_l2_clean_range;
+	outer_cache.flush_range = xsc3_l2_flush_range;
+
+	return 0;
+}
+core_initcall(xsc3_l2_init);
diff --git a/arch/arm/mm/consistent.c b/arch/arm/mm/consistent.c
index 333a82a3717..db7b3e38ef1 100644
--- a/arch/arm/mm/consistent.c
+++ b/arch/arm/mm/consistent.c
@@ -274,6 +274,11 @@ __dma_alloc(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp,
 void *
 dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *handle, gfp_t gfp)
 {
+	void *memory;
+
+	if (dma_alloc_from_coherent(dev, size, handle, &memory))
+		return memory;
+
 	if (arch_is_coherent()) {
 		void *virt;
 
@@ -362,6 +367,9 @@ void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr, dma_addr
 
 	WARN_ON(irqs_disabled());
 
+	if (dma_release_from_coherent(dev, get_order(size), cpu_addr))
+		return;
+
 	if (arch_is_coherent()) {
 		kfree(cpu_addr);
 		return;
diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index fbfa2605844..a8ec97b4752 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -37,7 +37,7 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address)
 	pgd_t *pgd;
 	pmd_t *pmd;
 	pte_t *pte, entry;
-	int ret = 0;
+	int ret;
 
 	pgd = pgd_offset(vma->vm_mm, address);
 	if (pgd_none(*pgd))
@@ -55,15 +55,19 @@ static int adjust_pte(struct vm_area_struct *vma, unsigned long address)
 	entry = *pte;
 
 	/*
+	 * If this page is present, it's actually being shared.
+	 */
+	ret = pte_present(entry);
+
+	/*
 	 * If this page isn't present, or is already setup to
 	 * fault (ie, is old), we can safely ignore any issues.
 	 */
-	if (pte_present(entry) && pte_val(entry) & shared_pte_mask) {
+	if (ret && pte_val(entry) & shared_pte_mask) {
 		flush_cache_page(vma, address, pte_pfn(entry));
 		pte_val(entry) &= ~shared_pte_mask;
 		set_pte_at(vma->vm_mm, address, pte, entry);
 		flush_tlb_page(vma, address);
-		ret = 1;
 	}
 	pte_unmap(pte);
 	return ret;
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index e6352946dde..30a69d67d67 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -156,9 +156,9 @@ static int __init check_initrd(struct meminfo *mi)
 	}
 
 	if (initrd_node == -1) {
-		printk(KERN_ERR "initrd (0x%08lx - 0x%08lx) extends beyond "
+		printk(KERN_ERR "INITRD: 0x%08lx+0x%08lx extends beyond "
 		       "physical memory - disabling initrd\n",
-		       phys_initrd_start, end);
+		       phys_initrd_start, phys_initrd_size);
 		phys_initrd_start = phys_initrd_size = 0;
 	}
 #endif
@@ -239,25 +239,33 @@ bootmem_init_node(int node, int initrd_node, struct meminfo *mi)
 	reserve_bootmem_node(pgdat, boot_pfn << PAGE_SHIFT,
 			     boot_pages << PAGE_SHIFT, BOOTMEM_DEFAULT);
 
+	/*
+	 * Reserve any special node zero regions.
+	 */
+	if (node == 0)
+		reserve_node_zero(pgdat);
+
 #ifdef CONFIG_BLK_DEV_INITRD
 	/*
 	 * If the initrd is in this node, reserve its memory.
 	 */
 	if (node == initrd_node) {
-		reserve_bootmem_node(pgdat, phys_initrd_start,
-				     phys_initrd_size, BOOTMEM_DEFAULT);
-		initrd_start = __phys_to_virt(phys_initrd_start);
-		initrd_end = initrd_start + phys_initrd_size;
+		int res = reserve_bootmem_node(pgdat, phys_initrd_start,
+				     phys_initrd_size, BOOTMEM_EXCLUSIVE);
+
+		if (res == 0) {
+			initrd_start = __phys_to_virt(phys_initrd_start);
+			initrd_end = initrd_start + phys_initrd_size;
+		} else {
+			printk(KERN_ERR
+				"INITRD: 0x%08lx+0x%08lx overlaps in-use "
+				"memory region - disabling initrd\n",
+				phys_initrd_start, phys_initrd_size);
+		}
 	}
 #endif
 
 	/*
-	 * Finally, reserve any node zero regions.
-	 */
-	if (node == 0)
-		reserve_node_zero(pgdat);
-
-	/*
 	 * initialise the zones within this node.
 	 */
 	memset(zone_size, 0, sizeof(zone_size));
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 303a7ff6bfd..b81dbf9ffb7 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -259,7 +259,7 @@ remap_area_supersections(unsigned long virt, unsigned long pfn,
  * caller shouldn't need to know that small detail.
  *
  * 'flags' are the extra L_PTE_ flags that you want to specify for this
- * mapping.  See include/asm-arm/proc-armv/pgtable.h for more information.
+ * mapping.  See <asm/pgtable.h> for more information.
  */
 void __iomem *
 __arm_ioremap_pfn(unsigned long pfn, unsigned long offset, size_t size,
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 2d6d682c206..a713e40e1f1 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -211,6 +211,12 @@ static struct mem_type mem_types[] = {
 				  PMD_SECT_TEX(1),
 		.domain		= DOMAIN_IO,
 	},
+	[MT_DEVICE_WC] = {	/* ioremap_wc */
+		.prot_pte	= PROT_PTE_DEVICE,
+		.prot_l1	= PMD_TYPE_TABLE,
+		.prot_sect	= PROT_SECT_DEVICE,
+		.domain		= DOMAIN_IO,
+	},
 	[MT_CACHECLEAN] = {
 		.prot_sect = PMD_TYPE_SECT | PMD_SECT_XN,
 		.domain    = DOMAIN_KERNEL,
@@ -273,6 +279,20 @@ static void __init build_mem_type_table(void)
 	}
 
 	/*
+	 * On non-Xscale3 ARMv5-and-older systems, use CB=01
+	 * (Uncached/Buffered) for ioremap_wc() mappings.  On XScale3
+	 * and ARMv6+, use TEXCB=00100 mappings (Inner/Outer Uncacheable
+	 * in xsc3 parlance, Uncached Normal in ARMv6 parlance).
+	 */
+	if (cpu_is_xsc3() || cpu_arch >= CPU_ARCH_ARMv6) {
+		mem_types[MT_DEVICE_WC].prot_pte_ext |= PTE_EXT_TEX(1);
+		mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1);
+	} else {
+		mem_types[MT_DEVICE_WC].prot_pte |= L_PTE_BUFFERABLE;
+		mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE;
+	}
+
+	/*
 	 * ARMv5 and lower, bit 4 must be set for page tables.
 	 * (was: cache "update-able on write" bit on ARM610)
 	 * However, Xscale cores require this bit to be cleared.
@@ -568,6 +588,55 @@ void __init iotable_init(struct map_desc *io_desc, int nr)
 		create_mapping(io_desc + i);
 }
 
+static int __init check_membank_valid(struct membank *mb)
+{
+	/*
+	 * Check whether this memory region has non-zero size.
+	 */
+	if (mb->size == 0)
+		return 0;
+
+	/*
+	 * Check whether this memory region would entirely overlap
+	 * the vmalloc area.
+	 */
+	if (phys_to_virt(mb->start) >= VMALLOC_MIN) {
+		printk(KERN_NOTICE "Ignoring RAM at %.8lx-%.8lx "
+			"(vmalloc region overlap).\n",
+			mb->start, mb->start + mb->size - 1);
+		return 0;
+	}
+
+	/*
+	 * Check whether this memory region would partially overlap
+	 * the vmalloc area.
+	 */
+	if (phys_to_virt(mb->start + mb->size) < phys_to_virt(mb->start) ||
+	    phys_to_virt(mb->start + mb->size) > VMALLOC_MIN) {
+		unsigned long newsize = VMALLOC_MIN - phys_to_virt(mb->start);
+
+		printk(KERN_NOTICE "Truncating RAM at %.8lx-%.8lx "
+			"to -%.8lx (vmalloc region overlap).\n",
+			mb->start, mb->start + mb->size - 1,
+			mb->start + newsize - 1);
+		mb->size = newsize;
+	}
+
+	return 1;
+}
+
+static void __init sanity_check_meminfo(struct meminfo *mi)
+{
+	int i;
+	int j;
+
+	for (i = 0, j = 0; i < mi->nr_banks; i++) {
+		if (check_membank_valid(&mi->bank[i]))
+			mi->bank[j++] = mi->bank[i];
+	}
+	mi->nr_banks = j;
+}
+
 static inline void prepare_page_table(struct meminfo *mi)
 {
 	unsigned long addr;
@@ -753,6 +822,7 @@ void __init paging_init(struct meminfo *mi, struct machine_desc *mdesc)
 	void *zero_page;
 
 	build_mem_type_table();
+	sanity_check_meminfo(mi);
 	prepare_page_table(mi);
 	bootmem_init(mi);
 	devicemaps_init(mdesc);
diff --git a/arch/arm/mm/proc-arm720.S b/arch/arm/mm/proc-arm720.S
index d64f8e6f75a..eda733d3045 100644
--- a/arch/arm/mm/proc-arm720.S
+++ b/arch/arm/mm/proc-arm720.S
@@ -231,7 +231,7 @@ cpu_arm720_name:
 		.align
 
 /*
- * See linux/include/asm-arm/procinfo.h for a definition of this structure.
+ * See <asm/procinfo.h> for a definition of this structure.
  */
 	
 		.section ".proc.info.init", #alloc, #execinstr
diff --git a/arch/arm/mm/proc-arm940.S b/arch/arm/mm/proc-arm940.S
index 1a3d63df8e9..551244d5ca1 100644
--- a/arch/arm/mm/proc-arm940.S
+++ b/arch/arm/mm/proc-arm940.S
@@ -15,6 +15,7 @@
 #include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 #include <asm/ptrace.h>
+#include "proc-macros.S"
 
 /* ARM940T has a 4KB DCache comprising 256 lines of 4 words */
 #define CACHE_DLINESIZE	16
diff --git a/arch/arm/mm/proc-arm946.S b/arch/arm/mm/proc-arm946.S
index 82d579ac9b9..6168c6160de 100644
--- a/arch/arm/mm/proc-arm946.S
+++ b/arch/arm/mm/proc-arm946.S
@@ -17,6 +17,7 @@
 #include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 #include <asm/ptrace.h>
+#include "proc-macros.S"
 
 /*
  * ARM946E-S is synthesizable to have 0KB to 1MB sized D-Cache,
diff --git a/arch/arm/mm/proc-sa110.S b/arch/arm/mm/proc-sa110.S
index 9818195dbf1..bbe10576c86 100644
--- a/arch/arm/mm/proc-sa110.S
+++ b/arch/arm/mm/proc-sa110.S
@@ -18,7 +18,7 @@
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/elf.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 #include <asm/ptrace.h>
diff --git a/arch/arm/mm/proc-sa1100.S b/arch/arm/mm/proc-sa1100.S
index c5fe27ad289..871ba018252 100644
--- a/arch/arm/mm/proc-sa1100.S
+++ b/arch/arm/mm/proc-sa1100.S
@@ -23,7 +23,7 @@
 #include <asm/assembler.h>
 #include <asm/asm-offsets.h>
 #include <asm/elf.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/pgtable-hwdef.h>
 #include <asm/pgtable.h>
 
diff --git a/arch/arm/mm/proc-xsc3.S b/arch/arm/mm/proc-xsc3.S
index 3533741a76f..7bd9e7197f6 100644
--- a/arch/arm/mm/proc-xsc3.S
+++ b/arch/arm/mm/proc-xsc3.S
@@ -28,7 +28,7 @@
 #include <linux/init.h>
 #include <asm/assembler.h>
 #include <asm/elf.h>
-#include <asm/hardware.h>
+#include <mach/hardware.h>
 #include <asm/pgtable.h>
 #include <asm/pgtable-hwdef.h>
 #include <asm/page.h>
@@ -52,11 +52,6 @@
 #define CACHESIZE	32768
 
 /*
- * Run with L2 enabled.
- */
-#define L2_CACHE_ENABLE	1
-
-/*
  * This macro is used to wait for a CP15 write and is needed when we
  * have to ensure that the last operation to the coprocessor was
  * completed before continuing with operation.
@@ -265,12 +260,9 @@ ENTRY(xsc3_dma_inv_range)
 	tst	r0, #CACHELINESIZE - 1
 	bic	r0, r0, #CACHELINESIZE - 1
 	mcrne	p15, 0, r0, c7, c10, 1		@ clean L1 D line
-	mcrne	p15, 1, r0, c7, c11, 1		@ clean L2 line
 	tst	r1, #CACHELINESIZE - 1
 	mcrne	p15, 0, r1, c7, c10, 1		@ clean L1 D line
-	mcrne	p15, 1, r1, c7, c11, 1		@ clean L2 line
 1:	mcr	p15, 0, r0, c7, c6, 1		@ invalidate L1 D line
-	mcr	p15, 1, r0, c7, c7, 1		@ invalidate L2 line
 	add	r0, r0, #CACHELINESIZE
 	cmp	r0, r1
 	blo	1b
@@ -288,7 +280,6 @@ ENTRY(xsc3_dma_inv_range)
 ENTRY(xsc3_dma_clean_range)
 	bic	r0, r0, #CACHELINESIZE - 1
 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean L1 D line
-	mcr	p15, 1, r0, c7, c11, 1		@ clean L2 line
 	add	r0, r0, #CACHELINESIZE
 	cmp	r0, r1
 	blo	1b
@@ -306,8 +297,6 @@ ENTRY(xsc3_dma_clean_range)
 ENTRY(xsc3_dma_flush_range)
 	bic	r0, r0, #CACHELINESIZE - 1
 1:	mcr	p15, 0, r0, c7, c14, 1		@ clean/invalidate L1 D line
-	mcr	p15, 1, r0, c7, c11, 1		@ clean L2 line
-	mcr	p15, 1, r0, c7, c7, 1		@ invalidate L2 line
 	add	r0, r0, #CACHELINESIZE
 	cmp	r0, r1
 	blo	1b
@@ -347,9 +336,7 @@ ENTRY(cpu_xsc3_switch_mm)
 	mcr	p15, 0, ip, c7, c5, 0		@ invalidate L1 I cache and BTB
 	mcr	p15, 0, ip, c7, c10, 4		@ data write barrier
 	mcr	p15, 0, ip, c7, c5, 4		@ prefetch flush
-#ifdef L2_CACHE_ENABLE
 	orr	r0, r0, #0x18			@ cache the page table in L2
-#endif
 	mcr	p15, 0, r0, c2, c0, 0		@ load page table pointer
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I and D TLBs
 	cpwait_ret lr, ip
@@ -378,12 +365,10 @@ ENTRY(cpu_xsc3_set_pte_ext)
 	orreq	r2, r2, #PTE_EXT_AP_UNO_SRW	@ yes -> user n/a, system r/w
 						@ combined with user -> user r/w
 
-#if L2_CACHE_ENABLE
 	@ If it's cacheable, it needs to be in L2 also.
 	eor	ip, r1, #L_PTE_CACHEABLE
 	tst	ip, #L_PTE_CACHEABLE
 	orreq	r2, r2, #PTE_EXT_TEX(0x5)
-#endif
 
 	tst	r3, #L_PTE_PRESENT | L_PTE_YOUNG	@ present and young?
 	movne	r2, #0				@ no -> fault
@@ -408,9 +393,7 @@ __xsc3_setup:
 	mcr	p15, 0, ip, c7, c10, 4		@ data write barrier
 	mcr	p15, 0, ip, c7, c5, 4		@ prefetch flush
 	mcr	p15, 0, ip, c8, c7, 0		@ invalidate I and D TLBs
-#if L2_CACHE_ENABLE
 	orr	r4, r4, #0x18			@ cache the page table in L2
-#endif
 	mcr	p15, 0, r4, c2, c0, 0		@ load page table pointer
 
 	mov	r0, #0				@ don't allow CP access
@@ -418,9 +401,7 @@ __xsc3_setup:
 
 	mrc	p15, 0, r0, c1, c0, 1		@ get auxiliary control reg
 	and	r0, r0, #2			@ preserve bit P bit setting
-#if L2_CACHE_ENABLE
 	orr	r0, r0, #(1 << 10)		@ enable L2 for LLR cache
-#endif
 	mcr	p15, 0, r0, c1, c0, 1		@ set auxiliary control reg
 
 	adr	r5, xsc3_crval
@@ -429,9 +410,6 @@ __xsc3_setup:
 	bic	r0, r0, r5			@ ..V. ..R. .... ..A.
 	orr	r0, r0, r6			@ ..VI Z..S .... .C.M (mmu)
 						@ ...I Z..S .... .... (uc)
-#if L2_CACHE_ENABLE
-	orr 	r0, r0, #0x04000000		@ L2 enable
-#endif
 	mov	pc, lr
 
 	.size	__xsc3_setup, . - __xsc3_setup