Merge master.kernel.org:/home/rmk/linux-2.6-arm

* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 3030/2: fix permission check in the obscur cmpxchg syscall
  [ARM] nommu: rename compressed/head.S symbols to a new style
  [ARM] select TLS_REG_EMUL and NEEDS_SYSCALL_FOR_CMPXCHG
  [ARM] nommu: Move hardware page table definitions to pgtable-hwdef.h
  [ARM] Move read of processor ID out of lookup_processor_type()
  [ARM] Fix typo in tlbflush.h
  [ARM] noMMU: removes TLB codes in nommu mode
  [ARM] noMMU: block sys_fork in nommu mode
  [ARM] 3399/1: Fix link problem when CONFIG_PRINTK is disabled
  [ARM] 3398/1: Fix the VFP registers loading/storing base address
  [ARM] 3397/1: AT91RM9200 Header update
  [ARM] 3385/1: Battery support for sharp zaurus sl-5500 (collie)
  [ARM] SMP: don't set cpu_*_map in smp_prepare_boot_cpu
  include/linux/clk.h is betraying its ARM origins
  [ARM] Move enable_irq and disable_irq to assembler.h
  [ARM] 3391/1: use PLAT8250_DEV_PLATFORM{,1} for platform device id instead of 0/1

7 files changed, 232 insertions, 86 deletions

diff --git a/include/asm-arm/arch-at91rm9200/at91rm9200_sys.h b/include/asm-arm/arch-at91rm9200/at91rm9200_sys.h
index 9bfffdbf1e0b..2910d359f919 100644
--- a/include/asm-arm/arch-at91rm9200/at91rm9200_sys.h
+++ b/include/asm-arm/arch-at91rm9200/at91rm9200_sys.h
@@ -172,6 +172,7 @@
 #define                 AT91_PMC_MDIV_4                 (3 << 8)
 
 #define AT91_PMC_PCKR(n)        (AT91_PMC + 0x40 + ((n) * 4))   /* Programmable Clock 0-3 Registers */
+
 #define AT91_PMC_IER            (AT91_PMC + 0x60)       /* Interrupt Enable Register */
 #define AT91_PMC_IDR            (AT91_PMC + 0x64)       /* Interrupt Disable Register */
 #define AT91_PMC_SR             (AT91_PMC + 0x68)       /* Status Register */
@@ -286,8 +287,32 @@
 #define         AT91_MC_RCB             (1 <<  0)               /* Remap Command Bit */
 
 #define AT91_MC_ASR             (AT91_MC + 0x04)        /* MC Abort Status Register */
+#define         AT91_MC_UNADD           (1 <<  0)               /* Undefined Address Abort Status */
+#define         AT91_MC_MISADD          (1 <<  1)               /* Misaligned Address Abort Status */
+#define         AT91_MC_ABTSZ           (3 <<  8)               /* Abort Size Status */
+#define                 AT91_MC_ABTSZ_BYTE              (0 << 8)
+#define                 AT91_MC_ABTSZ_HALFWORD          (1 << 8)
+#define                 AT91_MC_ABTSZ_WORD              (2 << 8)
+#define         AT91_MC_ABTTYP          (3 << 10)               /* Abort Type Status */
+#define                 AT91_MC_ABTTYP_DATAREAD         (0 << 10)
+#define                 AT91_MC_ABTTYP_DATAWRITE        (1 << 10)
+#define                 AT91_MC_ABTTYP_FETCH            (2 << 10)
+#define         AT91_MC_MST0            (1 << 16)               /* ARM920T Abort Source */
+#define         AT91_MC_MST1            (1 << 17)               /* PDC Abort Source */
+#define         AT91_MC_MST2            (1 << 18)               /* UHP Abort Source */
+#define         AT91_MC_MST3            (1 << 19)               /* EMAC Abort Source */
+#define         AT91_MC_SVMST0          (1 << 24)               /* Saved ARM920T Abort Source */
+#define         AT91_MC_SVMST1          (1 << 25)               /* Saved PDC Abort Source */
+#define         AT91_MC_SVMST2          (1 << 26)               /* Saved UHP Abort Source */
+#define         AT91_MC_SVMST3          (1 << 27)               /* Saved EMAC Abort Source */
+
 #define AT91_MC_AASR            (AT91_MC + 0x08)        /* MC Abort Address Status Register */
+
 #define AT91_MC_MPR             (AT91_MC + 0x0c)        /* MC Master Priority Register */
+#define         AT91_MPR_MSTP0          (7 <<  0)               /* ARM920T Priority */
+#define         AT91_MPR_MSTP1          (7 <<  4)               /* PDC Priority */
+#define         AT91_MPR_MSTP2          (7 <<  8)               /* UHP Priority */
+#define         AT91_MPR_MSTP3          (7 << 12)               /* EMAC Priority */
 
 /* External Bus Interface (EBI) registers */
 #define AT91_EBI_CSA            (AT91_MC + 0x60)        /* Chip Select Assignment Register */
@@ -309,8 +334,10 @@
 /* Static Memory Controller (SMC) registers */
 #define AT91_SMC_CSR(n)         (AT91_MC + 0x70 + ((n) * 4))/* SMC Chip Select Register */
 #define         AT91_SMC_NWS            (0x7f <<  0)            /* Number of Wait States */
+#define                 AT91_SMC_NWS_(x)        ((x) << 0)
 #define         AT91_SMC_WSEN           (1    <<  7)            /* Wait State Enable */
 #define         AT91_SMC_TDF            (0xf  <<  8)            /* Data Float Time */
+#define                 AT91_SMC_TDF_(x)        ((x) << 8)
 #define         AT91_SMC_BAT            (1    << 12)            /* Byte Access Type */
 #define         AT91_SMC_DBW            (3    << 13)            /* Data Bus Width */
 #define                 AT91_SMC_DBW_16         (1 << 13)
@@ -322,7 +349,78 @@
 #define                 AT91_SMC_ACSS_2         (2 << 16)
 #define                 AT91_SMC_ACSS_3         (3 << 16)
 #define         AT91_SMC_RWSETUP        (7 << 24)               /* Read & Write Signal Time Setup */
+#define                 AT91_SMC_RWSETUP_(x)    ((x) << 24)
 #define         AT91_SMC_RWHOLD         (7 << 28)               /* Read & Write Signal Hold Time */
-
+#define                 AT91_SMC_RWHOLD_(x)     ((x) << 28)
+
+/* SDRAM Controller registers */
+#define AT91_SDRAMC_MR          (AT91_MC + 0x90)        /* Mode Register */
+#define         AT91_SDRAMC_MODE        (0xf << 0)              /* Command Mode */
+#define                 AT91_SDRAMC_MODE_NORMAL         (0 << 0)
+#define                 AT91_SDRAMC_MODE_NOP            (1 << 0)
+#define                 AT91_SDRAMC_MODE_PRECHARGE      (2 << 0)
+#define                 AT91_SDRAMC_MODE_LMR            (3 << 0)
+#define                 AT91_SDRAMC_MODE_REFRESH        (4 << 0)
+#define         AT91_SDRAMC_DBW         (1   << 4)              /* Data Bus Width */
+#define                 AT91_SDRAMC_DBW_32      (0 << 4)
+#define                 AT91_SDRAMC_DBW_16      (1 << 4)
+
+#define AT91_SDRAMC_TR          (AT91_MC + 0x94)        /* Refresh Timer Register */
+#define         AT91_SDRAMC_COUNT       (0xfff << 0)            /* Refresh Timer Count */
+
+#define AT91_SDRAMC_CR          (AT91_MC + 0x98)        /* Configuration Register */
+#define         AT91_SDRAMC_NC          (3   <<  0)             /* Number of Column Bits */
+#define                 AT91_SDRAMC_NC_8        (0 << 0)
+#define                 AT91_SDRAMC_NC_9        (1 << 0)
+#define                 AT91_SDRAMC_NC_10       (2 << 0)
+#define                 AT91_SDRAMC_NC_11       (3 << 0)
+#define         AT91_SDRAMC_NR          (3   <<  2)             /* Number of Row Bits */
+#define                 AT91_SDRAMC_NR_11       (0 << 2)
+#define                 AT91_SDRAMC_NR_12       (1 << 2)
+#define                 AT91_SDRAMC_NR_13       (2 << 2)
+#define         AT91_SDRAMC_NB          (1   <<  4)             /* Number of Banks */
+#define                 AT91_SDRAMC_NB_2        (0 << 4)
+#define                 AT91_SDRAMC_NB_4        (1 << 4)
+#define         AT91_SDRAMC_CAS         (3   <<  5)             /* CAS Latency */
+#define                 AT91_SDRAMC_CAS_2       (2 << 5)
+#define         AT91_SDRAMC_TWR         (0xf <<  7)             /* Write Recovery Delay */
+#define         AT91_SDRAMC_TRC         (0xf << 11)             /* Row Cycle Delay */
+#define         AT91_SDRAMC_TRP         (0xf << 15)             /* Row Precharge Delay */
+#define         AT91_SDRAMC_TRCD        (0xf << 19)             /* Row to Column Delay */
+#define         AT91_SDRAMC_TRAS        (0xf << 23)             /* Active to Precharge Delay */
+#define         AT91_SDRAMC_TXSR        (0xf << 27)             /* Exit Self Refresh to Active Delay */
+
+#define AT91_SDRAMC_SRR         (AT91_MC + 0x9c)        /* Self Refresh Register */
+#define AT91_SDRAMC_LPR         (AT91_MC + 0xa0)        /* Low Power Register */
+#define AT91_SDRAMC_IER         (AT91_MC + 0xa4)        /* Interrupt Enable Register */
+#define AT91_SDRAMC_IDR         (AT91_MC + 0xa8)        /* Interrupt Disable Register */
+#define AT91_SDRAMC_IMR         (AT91_MC + 0xac)        /* Interrupt Mask Register */
+#define AT91_SDRAMC_ISR         (AT91_MC + 0xb0)        /* Interrupt Status Register */
+
+/* Burst Flash Controller register */
+#define AT91_BFC_MR             (AT91_MC + 0xc0)        /* Mode Register */
+#define         AT91_BFC_BFCOM          (3   <<  0)             /* Burst Flash Controller Operating Mode */
+#define                 AT91_BFC_BFCOM_DISABLED (0 << 0)
+#define                 AT91_BFC_BFCOM_ASYNC    (1 << 0)
+#define                 AT91_BFC_BFCOM_BURST    (2 << 0)
+#define         AT91_BFC_BFCC           (3   <<  2)             /* Burst Flash Controller Clock */
+#define                 AT91_BFC_BFCC_MCK       (1 << 2)
+#define                 AT91_BFC_BFCC_DIV2      (2 << 2)
+#define                 AT91_BFC_BFCC_DIV4      (3 << 2)
+#define         AT91_BFC_AVL            (0xf <<  4)             /* Address Valid Latency */
+#define         AT91_BFC_PAGES          (7   <<  8)             /* Page Size */
+#define                 AT91_BFC_PAGES_NO_PAGE  (0 << 8)
+#define                 AT91_BFC_PAGES_16       (1 << 8)
+#define                 AT91_BFC_PAGES_32       (2 << 8)
+#define                 AT91_BFC_PAGES_64       (3 << 8)
+#define                 AT91_BFC_PAGES_128      (4 << 8)
+#define                 AT91_BFC_PAGES_256      (5 << 8)
+#define                 AT91_BFC_PAGES_512      (6 << 8)
+#define                 AT91_BFC_PAGES_1024     (7 << 8)
+#define         AT91_BFC_OEL            (3   << 12)             /* Output Enable Latency */
+#define         AT91_BFC_BAAEN          (1   << 16)             /* Burst Address Advance Enable */
+#define         AT91_BFC_BFOEH          (1   << 17)             /* Burst Flash Output Enable Handling */
+#define         AT91_BFC_MUXEN          (1   << 18)             /* Multiplexed Bus Enable */
+#define         AT91_BFC_RDYEN          (1   << 19)             /* Ready Enable Mode */
 
 #endif
diff --git a/include/asm-arm/assembler.h b/include/asm-arm/assembler.h
index f31ac92b6c7f..d53bafa9bf1c 100644
--- a/include/asm-arm/assembler.h
+++ b/include/asm-arm/assembler.h
@@ -80,16 +80,33 @@
         instr   regs
 
 /*
- * Save the current IRQ state and disable IRQs.  Note that this macro
- * assumes FIQs are enabled, and that the processor is in SVC mode.
+ * Enable and disable interrupts
  */
-        .macro  save_and_disable_irqs, oldcpsr
-        mrs     \oldcpsr, cpsr
 #if __LINUX_ARM_ARCH__ >= 6
+        .macro  disable_irq
         cpsid   i
+        .endm
+
+        .macro  enable_irq
+        cpsie   i
+        .endm
 #else
-        msr     cpsr_c, #PSR_I_BIT | MODE_SVC
+        .macro  disable_irq
+        msr     cpsr_c, #PSR_I_BIT | SVC_MODE
+        .endm
+
+        .macro  enable_irq
+        msr     cpsr_c, #SVC_MODE
+        .endm
 #endif
+
+/*
+ * Save the current IRQ state and disable IRQs.  Note that this macro
+ * assumes FIQs are enabled, and that the processor is in SVC mode.
+ */
+        .macro  save_and_disable_irqs, oldcpsr
+        mrs     \oldcpsr, cpsr
+        disable_irq
         .endm
 
 /*
diff --git a/include/asm-arm/pgalloc.h b/include/asm-arm/pgalloc.h
index bc18ff405181..c4ac2e67768d 100644
--- a/include/asm-arm/pgalloc.h
+++ b/include/asm-arm/pgalloc.h
@@ -10,10 +10,15 @@
 #ifndef _ASMARM_PGALLOC_H
 #define _ASMARM_PGALLOC_H
 
+#include <asm/domain.h>
+#include <asm/pgtable-hwdef.h>
 #include <asm/processor.h>
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
 
+#define _PAGE_USER_TABLE        (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
+#define _PAGE_KERNEL_TABLE      (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
+
 /*
  * Since we have only two-level page tables, these are trivial
  */
diff --git a/include/asm-arm/pgtable-hwdef.h b/include/asm-arm/pgtable-hwdef.h
new file mode 100644
index 000000000000..1d033495cc75
--- /dev/null
+++ b/include/asm-arm/pgtable-hwdef.h
@@ -0,0 +1,88 @@
+/*
+ *  linux/include/asm-arm/pgtable-hwdef.h
+ *
+ *  Copyright (C) 1995-2002 Russell King
+ *
+ * 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.
+ */
+#ifndef _ASMARM_PGTABLE_HWDEF_H
+#define _ASMARM_PGTABLE_HWDEF_H
+
+/*
+ * Hardware page table definitions.
+ *
+ * + Level 1 descriptor (PMD)
+ *   - common
+ */
+#define PMD_TYPE_MASK           (3 << 0)
+#define PMD_TYPE_FAULT          (0 << 0)
+#define PMD_TYPE_TABLE          (1 << 0)
+#define PMD_TYPE_SECT           (2 << 0)
+#define PMD_BIT4                (1 << 4)
+#define PMD_DOMAIN(x)           ((x) << 5)
+#define PMD_PROTECTION          (1 << 9)        /* v5 */
+/*
+ *   - section
+ */
+#define PMD_SECT_BUFFERABLE     (1 << 2)
+#define PMD_SECT_CACHEABLE      (1 << 3)
+#define PMD_SECT_AP_WRITE       (1 << 10)
+#define PMD_SECT_AP_READ        (1 << 11)
+#define PMD_SECT_TEX(x)         ((x) << 12)     /* v5 */
+#define PMD_SECT_APX            (1 << 15)       /* v6 */
+#define PMD_SECT_S              (1 << 16)       /* v6 */
+#define PMD_SECT_nG             (1 << 17)       /* v6 */
+#define PMD_SECT_SUPER          (1 << 18)       /* v6 */
+
+#define PMD_SECT_UNCACHED       (0)
+#define PMD_SECT_BUFFERED       (PMD_SECT_BUFFERABLE)
+#define PMD_SECT_WT             (PMD_SECT_CACHEABLE)
+#define PMD_SECT_WB             (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
+#define PMD_SECT_MINICACHE      (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
+#define PMD_SECT_WBWA           (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
+#define PMD_SECT_NONSHARED_DEV  (PMD_SECT_TEX(2))
+
+/*
+ *   - coarse table (not used)
+ */
+
+/*
+ * + Level 2 descriptor (PTE)
+ *   - common
+ */
+#define PTE_TYPE_MASK           (3 << 0)
+#define PTE_TYPE_FAULT          (0 << 0)
+#define PTE_TYPE_LARGE          (1 << 0)
+#define PTE_TYPE_SMALL          (2 << 0)
+#define PTE_TYPE_EXT            (3 << 0)        /* v5 */
+#define PTE_BUFFERABLE          (1 << 2)
+#define PTE_CACHEABLE           (1 << 3)
+
+/*
+ *   - extended small page/tiny page
+ */
+#define PTE_EXT_XN              (1 << 0)        /* v6 */
+#define PTE_EXT_AP_MASK         (3 << 4)
+#define PTE_EXT_AP0             (1 << 4)
+#define PTE_EXT_AP1             (2 << 4)
+#define PTE_EXT_AP_UNO_SRO      (0 << 4)
+#define PTE_EXT_AP_UNO_SRW      (PTE_EXT_AP0)
+#define PTE_EXT_AP_URO_SRW      (PTE_EXT_AP1)
+#define PTE_EXT_AP_URW_SRW      (PTE_EXT_AP1|PTE_EXT_AP0)
+#define PTE_EXT_TEX(x)          ((x) << 6)      /* v5 */
+#define PTE_EXT_APX             (1 << 9)        /* v6 */
+#define PTE_EXT_SHARED          (1 << 10)       /* v6 */
+#define PTE_EXT_NG              (1 << 11)       /* v6 */
+
+/*
+ *   - small page
+ */
+#define PTE_SMALL_AP_MASK       (0xff << 4)
+#define PTE_SMALL_AP_UNO_SRO    (0x00 << 4)
+#define PTE_SMALL_AP_UNO_SRW    (0x55 << 4)
+#define PTE_SMALL_AP_URO_SRW    (0xaa << 4)
+#define PTE_SMALL_AP_URW_SRW    (0xff << 4)
+
+#endif
diff --git a/include/asm-arm/pgtable.h b/include/asm-arm/pgtable.h
index 70e00d08345e..e595ae24efe2 100644
--- a/include/asm-arm/pgtable.h
+++ b/include/asm-arm/pgtable.h
@@ -137,81 +137,6 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define SUPERSECTION_MASK       (~(SUPERSECTION_SIZE-1))
 
 /*
- * Hardware page table definitions.
- *
- * + Level 1 descriptor (PMD)
- *   - common
- */
-#define PMD_TYPE_MASK           (3 << 0)
-#define PMD_TYPE_FAULT          (0 << 0)
-#define PMD_TYPE_TABLE          (1 << 0)
-#define PMD_TYPE_SECT           (2 << 0)
-#define PMD_BIT4                (1 << 4)
-#define PMD_DOMAIN(x)           ((x) << 5)
-#define PMD_PROTECTION          (1 << 9)        /* v5 */
-/*
- *   - section
- */
-#define PMD_SECT_BUFFERABLE     (1 << 2)
-#define PMD_SECT_CACHEABLE      (1 << 3)
-#define PMD_SECT_AP_WRITE       (1 << 10)
-#define PMD_SECT_AP_READ        (1 << 11)
-#define PMD_SECT_TEX(x)         ((x) << 12)     /* v5 */
-#define PMD_SECT_APX            (1 << 15)       /* v6 */
-#define PMD_SECT_S              (1 << 16)       /* v6 */
-#define PMD_SECT_nG             (1 << 17)       /* v6 */
-#define PMD_SECT_SUPER          (1 << 18)       /* v6 */
-
-#define PMD_SECT_UNCACHED       (0)
-#define PMD_SECT_BUFFERED       (PMD_SECT_BUFFERABLE)
-#define PMD_SECT_WT             (PMD_SECT_CACHEABLE)
-#define PMD_SECT_WB             (PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
-#define PMD_SECT_MINICACHE      (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE)
-#define PMD_SECT_WBWA           (PMD_SECT_TEX(1) | PMD_SECT_CACHEABLE | PMD_SECT_BUFFERABLE)
-#define PMD_SECT_NONSHARED_DEV  (PMD_SECT_TEX(2))
-
-/*
- *   - coarse table (not used)
- */
-
-/*
- * + Level 2 descriptor (PTE)
- *   - common
- */
-#define PTE_TYPE_MASK           (3 << 0)
-#define PTE_TYPE_FAULT          (0 << 0)
-#define PTE_TYPE_LARGE          (1 << 0)
-#define PTE_TYPE_SMALL          (2 << 0)
-#define PTE_TYPE_EXT            (3 << 0)        /* v5 */
-#define PTE_BUFFERABLE          (1 << 2)
-#define PTE_CACHEABLE           (1 << 3)
-
-/*
- *   - extended small page/tiny page
- */
-#define PTE_EXT_XN              (1 << 0)        /* v6 */
-#define PTE_EXT_AP_MASK         (3 << 4)
-#define PTE_EXT_AP0             (1 << 4)
-#define PTE_EXT_AP1             (2 << 4)
-#define PTE_EXT_AP_UNO_SRO      (0 << 4)
-#define PTE_EXT_AP_UNO_SRW      (PTE_EXT_AP0)
-#define PTE_EXT_AP_URO_SRW      (PTE_EXT_AP1)
-#define PTE_EXT_AP_URW_SRW      (PTE_EXT_AP1|PTE_EXT_AP0)
-#define PTE_EXT_TEX(x)          ((x) << 6)      /* v5 */
-#define PTE_EXT_APX             (1 << 9)        /* v6 */
-#define PTE_EXT_SHARED          (1 << 10)       /* v6 */
-#define PTE_EXT_NG              (1 << 11)       /* v6 */
-
-/*
- *   - small page
- */
-#define PTE_SMALL_AP_MASK       (0xff << 4)
-#define PTE_SMALL_AP_UNO_SRO    (0x00 << 4)
-#define PTE_SMALL_AP_UNO_SRW    (0x55 << 4)
-#define PTE_SMALL_AP_URO_SRW    (0xaa << 4)
-#define PTE_SMALL_AP_URW_SRW    (0xff << 4)
-
-/*
  * "Linux" PTE definitions.
  *
  * We keep two sets of PTEs - the hardware and the linux version.
@@ -236,11 +161,6 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 
 #ifndef __ASSEMBLY__
 
-#include <asm/domain.h>
-
-#define _PAGE_USER_TABLE        (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_USER))
-#define _PAGE_KERNEL_TABLE      (PMD_TYPE_TABLE | PMD_BIT4 | PMD_DOMAIN(DOMAIN_KERNEL))
-
 /*
  * The following macros handle the cache and bufferable bits...
  */
diff --git a/include/asm-arm/tlb.h b/include/asm-arm/tlb.h
index f49bfb78c221..cb740025d413 100644
--- a/include/asm-arm/tlb.h
+++ b/include/asm-arm/tlb.h
@@ -19,6 +19,14 @@
 
 #include <asm/cacheflush.h>
 #include <asm/tlbflush.h>
+
+#ifndef CONFIG_MMU
+
+#include <linux/pagemap.h>
+#include <asm-generic/tlb.h>
+
+#else /* !CONFIG_MMU */
+
 #include <asm/pgalloc.h>
 
 /*
@@ -82,4 +90,5 @@ tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vma)
 
 #define tlb_migrate_finish(mm)          do { } while (0)
 
+#endif /* CONFIG_MMU */
 #endif
diff --git a/include/asm-arm/tlbflush.h b/include/asm-arm/tlbflush.h
index 0c2acc944a0a..728992451dd1 100644
--- a/include/asm-arm/tlbflush.h
+++ b/include/asm-arm/tlbflush.h
@@ -11,6 +11,13 @@
 #define _ASMARM_TLBFLUSH_H
 
 #include <linux/config.h>
+
+#ifndef CONFIG_MMU
+
+#define tlb_flush(tlb)  ((void) tlb)
+
+#else /* CONFIG_MMU */
+
 #include <asm/glue.h>
 
 #define TLB_V3_PAGE     (1 << 0)
@@ -423,4 +430,6 @@ extern void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte
 
 #endif
 
+#endif /* CONFIG_MMU */
+
 #endif