065a1134c9
nios2: move include asm-generic/io.h to end of file
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Move asm-generic/io.h to end of file to override functions like
phys_to_virt, virt_to_phys in asm-generic/io.h.
This is due to recent commit 9216efaf
2014-12-08 12:56:10 +08:00
25f232536c
nios2: remove include asm-generic/iomap.h from io.h
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Don't need asm-generic/iomap.h and asm-generic/io.h added
default ioread8/16/32 iowrite8/16/32 implementation.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:09 +08:00
568f6ba03c
nios2: remove unnecessary space before define
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Remove extra space between # and define.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:08 +08:00
b29438f22c
nios2: fix error handling of irq_of_parse_and_map
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Return value of irq_of_parse_and_map() is unsigned int, with 0
indicating failure, so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Reviewed-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:08 +08:00
ac8ab8dd95
nios2: Use IS_ENABLED instead of #ifdefs to check config symbols
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Make the checking for div/mul/mulx instruction config symbols easier to
read by using IS_ENABLED instead of #ifdefs.
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Acked-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:07 +08:00
2fc8483fdc
nios2: Build infrastructure
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This patch adds Makefile and Kconfig files required for building a
nios2 kernel.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:06 +08:00
106174d0d8
nios2: ptrace support
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Add ptrace support for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:04 +08:00
42381bf1f2
nios2: Module support
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This patch adds support for loadable modules.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:04 +08:00
b31ebd8055
nios2: Nios2 registers
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This file contains constants for the instruction macros, cpu registers,
fields and bits.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:03 +08:00
97da0d62d4
nios2: Miscellaneous header files
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This patch introduces a few nios2-specific header files.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:03 +08:00
2612b87959
nios2: Cpuinfo handling
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Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:02 +08:00
4182de9e63
nios2: Time keeping
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Add time keeping code for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08 12:56:01 +08:00
95acd4c7b6
nios2: Device tree support
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Add device tree support to arch/nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:01 +08:00
eea9507a69
nios2: Library functions
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Add optimised library functions for nios2.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:56:00 +08:00
b53e906d25
nios2: Signal handling support
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This patch adds support for signal handling.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:59 +08:00
1000197d80
nios2: System calls handling
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This patch adds support for system calls from userspaces. It uses the
asm-generic/unistd.h definitions with architecture spcific syscall.
The sys_call_table is just an array defined in a C file and it contains
pointers to the syscall functions.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:58 +08:00
19f4c6b5af
nios2: ELF definitions
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This patch adds definitions for the ELF format
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:58 +08:00
e23c621f98
nios2: DMA mapping API
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This patch adds support for the DMA mapping API.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:56 +08:00
f27ffc751c
nios2: Interrupt handling
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This patch adds the support for IRQ handling.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
2014-12-08 12:55:55 +08:00
c983e92fcb
nios2: TLB handling
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This patch adds the TLB maintenance functions.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:54 +08:00
93c91cb228
nios2: Cache handling
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This patch adds functionality required for cache maintenance.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:54 +08:00
71995e4d00
nios2: Process management
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This patch adds support for thread creation and context switching.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:53 +08:00
cbd15b3fad
nios2: Page table management
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This patch adds support for page table management.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:53 +08:00
862674d424
nios2: MMU Fault handling
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This patch adds support for the handling of the MMU faults (exception
entry code introduced by a previous patch, kernel/entry.S).
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:52 +08:00
6b8baec4d6
nios2: I/O Mapping
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This patch adds several definitions for I/O accessors and ioremap().
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:52 +08:00
5ccc6af5e8
nios2: Memory management
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This patch contains the initialisation of the memory blocks, MMU
attributes and the memory map.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:51 +08:00
771a0163c0
nios2: Traps exception handling
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This patch contains traps exception handling.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:50 +08:00
82ed08dd1b
nios2: Exception handling
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This patch contains the exception entry code (kernel/entry.S) and
misaligned exception.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:50 +08:00
27d22413e6
nios2: Kernel booting and initialization
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This patch adds the kernel booting and the initial setup code.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:49 +08:00
39b505cb79
nios2: Assembly macros and definitions
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This patch add assembly macros and definitions used in
the .S files across arch/nios2/ and together with asm-offsets.c.
Signed-off-by: Ley Foon Tan <lftan@altera.com>
2014-12-08 12:55:49 +08:00
Ley Foon Tan