Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the necessary entries to the Makefile and Kconfig
files for building the Thumb-2 kernel.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the ARM/Thumb-2 unified support for the
arch/arm/boot/* files.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch modifies the VFP files for the ARM/Thumb-2 unified
assembler syntax.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the ARM/Thumb-2 unified support the Integrator boards.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds ARM/Thumb-2 unified support for spinlocks, mutexes,
semaphores and the atomic operations.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the ARM/Thumb-2 unified support for the arch/arm/lib/*
files.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the ARM/Thumb-2 unified support to the arch/arm/mm/*
files.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch implements the ARM/Thumb-2 unified kernel start-up and
exception handling code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds various C and assembler macros that help with using
the unified assembler syntax for compiling files to either ARM or
Thumb-2 modes.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

According to the ARM11MPCore Erratum 351422 (r0p0), under extremely
rare conditions, in an MPCore node consisting of at least 3 CPUs, two
CPUs trying to perform a STREX to data on the same shared cache line
can enter a livelock situation. This patch adds variable spinning time
to the locking routines.
Signed-off-by: Harry Fearnhamm <Harry.Fearnhamm@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Errata 411920 - Invalidation of the Instruction Cache operation can
fail. This Errata is present in 1136, 1156 and 1176. It does not
affect the MPCore. This patch implements the ARM Ltd recommended
workaround.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch is a workaround for the 364296 ARM1136 r0pX errata
(possible cache data corruption with hit-under-miss enabled). It sets
the undocumented bit 31 in the auxiliary control register and the FI bit in
the control register, thus disabling hit-under-miss without putting the
processor into full low interrupt latency mode.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

When running Linux in non-secure mode (on ARM1176 for example),
depending on the CP15 secure configuration register, the CPSR.F bit
(6) might only be modified from the secure mode. However, the
valid_user_regs() function checks for this bit being cleared. With
commit a6c61e9d, a SIGSEGV is forced in handle_signal() if the user
registers are not considered valid.

The patch also ensures that the CPSR.A bit is cleared and the USR mode
is set if the CPU does not support the 26bit user mode.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The patch moves the HWCAP definitions and the extern elf_hwcap
declaration to the hwcap.h header file.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The background operations of the L2x0 cache controllers are aborted if
another operation is issued on the same or different core. This patch
protects the maintenance operation issuing/polling with a spinlock.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Starting with ARMv7-A, conditional execution of undefined instructions
can trigger an exception even if the condition check fails. This patch
modifies the NWFPE support to check the condition before emulating the
instruction.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This is to avoid a compiler warning for overriding the built-in "putc"
function.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

MMU option is now selectable.
Signed-off-by: Hyok S. Choi <hyok.choi@samsung.com>

The patch below adds ARM ptrace functions to get the process load address.
This is required for useful userspace debugging on mmuless systems.  These
values are obtained by reading magic offsets with PTRACE_PEEKUSR, as on other
nommu targets. I picked arbitrary large values for the offsets.
Signed-off-by: Paul Brook <paul@codesourcery.com>

This patch redefines the IO_ADDRESS macro.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch redefines the IO_ADDRESS macro in
include/asm-arm/hardware.h.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The patch adds the empty arch_{enter,leave,flush}_lazy_{mmu,cpu}_mode
macros to pgtable-nommu.h
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

This patch adds the necessary ifdef's to the proc-v7.S code and
defines the v7wbi_tlb_fns macro in pgtable-nommu.h
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

With this patch, Kconfig only selects CPU_HAS_ASID for the MMU
case. It also corrects the typo in the v6wbi_tlb_fns definition in
pgtable-nommu.h.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

If not MMU and not v6K, access to the TLS register has to be
emulated. MMU-less systems do not provide a high page for kuser
helpers.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

There is no MMU context switching on MMU-less systems.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The __cpu_{clear|copy}_user_page functions are not defined for the
MMU-less case and therefore should not be exported.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The patch adds the necessary ifdefs around functions that only make
sense when the MMU is enabled.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The FSR bit 11 is not set by a memory write causing a data abort while
in Jazelle state, making the copy-on-write mechanism unusable. This
workaround marks repetitive Jazelle data aborts on the same address as
write aborts.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Because of hardware problems, the IRQ line from the secondary GIC is
always asserted.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Device driver for the SMSC LAN911x/LAN921x families embedded Ethernet
chips.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

RealView/EB revD platform comes with the SMSC LAN9118 Ethernet
chip. This patch allows either the smc91x or the smc911x drivers to be
used with the RealView/EB platform.
Signed-off-by: Bahadir Balban <bahadir.balban@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

Currently, Linux doesn't generate correct page tables for ARMv6 and
later cores if the cache policy is different from the default one (it
may lead to strongly ordered or shared device mappings). This patch
disallows cache policies other than writeback and the
CPU_[ID]CACHE_DISABLE options only affect the CP15 system control
register rather than the page tables.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

The auxiliary control and the L2 auxiliary control registers are
Cortex-A8 specific. They need to be removed from the generic ARMv7
support code.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>