u-boot.git/arch/arc/include, branch v2017.09

arc: Make u-boot-arc.h a private header

2017-06-05T15:02:31+00:00

Rather than including this arch-specific header file in common.h, include
it from within arc's u-boot.h header.

Signed-off-by: Simon Glass

board_f: Make relocation functions generic

2017-04-05T20:36:57+00:00

This header file is used by three archs. It could be used by all of them
since relocation is a common function. Move it into a generic file.

Signed-off-by: Simon Glass

board_f: Make init_helpers generic

2017-04-05T20:36:56+00:00

This header file is used by two archs. It could be used by all of them
since it allows the cache to be on during relocation. Move it into a
generic file.

Signed-off-by: Simon Glass

drivers: timer: Introduce ARC timer driver

2017-03-24T11:20:55+00:00

This commit introduces timer driver for ARC.

ARC timers are configured via ARC AUX registers so we use special
functions to access timer control registers.

This driver allows utilization of either timer0 or timer1
depending on which one is available in real hardware. Essentially
only existing timers should be mentioned in board's Device Tree
description.

Signed-off-by: Vlad Zakharov 
Reviewed-by: Simon Glass

Convert CONFIG_ARCH_EARLY_INIT_R to Kconfig

2017-01-25T21:43:48+00:00

This converts the following to Kconfig:
   CONFIG_ARCH_EARLY_INIT_R

Signed-off-by: Simon Glass

Remove arch/${ARCH}/include/asm/errno.h

2016-09-23T21:56:18+00:00

Unlike Linux, nothing about errno.h is arch-specific in U-Boot.
As you see, all of arch/${ARCH}/include/asm/errno.h is just a
wrapper of .  Actually, U-Boot does not
export headers to user-space, so we just have to care about the
consistency in the U-Boot tree.

Now all of include directives for  are gone.
Deprecate .

Signed-off-by: Masahiro Yamada 
Acked-by: Alexey Brodkin

arc: No need in sections defined in sources with newer tools

2016-08-05T09:50:25+00:00

Starting from arc-2016.03 GNU tools linker properly works with
symbols defined in linker script and so external declarations
are no longer required, dump them.

Signed-off-by: Alexey Brodkin

arc: make global_data.h usable in assembly files

2016-07-04T08:43:41+00:00

Currently on attempt to use global_data.h in an assembly file following
will happen:
-------------------->8-----------------
./arch/arc/include/asm/global_data.h: Assembler messages:
./arch/arc/include/asm/global_data.h:11: Error: bad instruction 'struct arch_global_data{'
./arch/arc/include/asm/global_data.h:12: Error: junk at end of line, first unrecognized character is `}'
scripts/Makefile.build:316: recipe for target 'arch/arc/lib/start.o' failed
-------------------->8-----------------

In this change we disable struct arch_global_data in ASM which fixes
the issue above.

Signed-off-by: Alexey Brodkin

arc: Update data accessors with use of memory barriers

2016-06-13T12:38:05+00:00

Memory barriers are proven to be a requirement for both compiler and
real hardware to properly serialize access to critical data.

For example if CPU or data bus it uses may do reordering of data
accesses absence of memory barriers might easily lead to very subtle and
hard to debug data corruptions.

This implementation was heavily borrowed from up to date Linux kernel.

Signed-off-by: Alexey Brodkin

arc: Add virt_to_phys() stub

2016-04-11T17:20:38+00:00

Commit cf7c93cdd755 "usb: ehci: Implement V2P mapping"
introduced usage of virt_to_phys() in ehci-hcd.

Since there was no implementation of virt_to_phys() for ARC
compilation of the ehci-generic driver failed.

This change adds virt_to_phys() stub for ARC so now
USB driver for AXS101 board could be built again.

Signed-off-by: Alexey Brodkin 
Cc: Daniel Schwierzeck 
Cc: Hans de Goede 
Acked-by: Marek Vasut