u-boot.git/arch/arc/lib, branch v2020.01

common: Move enable/disable_interrupts out of common.h

2019-12-02T23:25:01+00:00

Move these two functions into the irq_funcs.h header file. Also move
interrupt_handler_t as this is used by the irq_install_handler() function.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

common: Move interrupt functions into a new header

2019-12-02T23:25:00+00:00

These functions do not use driver model but are fairly widely used in
U-Boot. But it is not clear that they will use driver model anytime soon,
so we don't want to label them as 'legacy'.

Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it
is widely used in U-Boot already.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

common: Move some cache and MMU functions out of common.h

2019-12-02T23:23:55+00:00

These functions belong in cpu_func.h. Another option would be cache.h
but that code uses driver model and we have not moved these cache
functions to use driver model. Since they are CPU-related it seems
reasonable to put them here.

Move them over.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

Move strtomhz() to vsprintf.h

2019-12-02T23:23:09+00:00

At present this function sits in its own file but it does not really
justify it. There are similar string functions in vsprintf.h, so move it
there. Also add the missing function comment.

Use the vsprintf.h include file explicitly where needed.

Signed-off-by: Simon Glass 
Reviewed-by: Tom Rini

arc: libgcc: Import udivdi3 & udivmoddi4 to allow 64-bit division

2019-09-03T16:05:34+00:00

As reported by Kever here [1] we were unable to compile 64-bit division
code due to missing definition of __udivdi3().

Import its implementation and __udivmoddi4() as its direct dependency
from today's libgcc [2].

[1] https://patchwork.ozlabs.org/patch/1146845/
[2] https://github.com/gcc-mirror/gcc/commit/5d8723600bc0eed41226b5a6785bc02a053b45d5

Signed-off-by: Alexey Brodkin 
Cc: Kever Yang

CONFIG_SPL_SYS_[DI]CACHE_OFF: add

2019-05-18T12:15:35+00:00

While converting CONFIG_SYS_[DI]CACHE_OFF to Kconfig, there are instances
where these configuration items are conditional on SPL. This commit adds SPL
variants of these configuration items, uses CONFIG_IS_ENABLED(), and updates
the configurations as required.

Acked-by: Alexey Brodkin 
Signed-off-by: Trevor Woerner 
[trini: Make the default depend on the setting for full U-Boot, update
more zynq hardware]
Signed-off-by: Tom Rini

ARC: Fix iteration in arc_xx_version()

2019-01-25T05:40:53+00:00

"i" gets incremented before we're entering loop body
and effectively we iterate from 1 to 8 instead of 0 to 7.

This way we:
 a) Skip the first line of struct hs_versions
 b) Go over it and access memory beyond the structure

Signed-off-by: Alexey Brodkin

ARC: Improve identification of ARC cores

2018-12-03T11:26:18+00:00

1. Try to guess a ARC core template that was used
   i.e. not just name a core family but something more
   menaingful like "ARC HS38", "ARC EM11D" etc.

   We do it checking availability of the key differentiation
   features like:
    - Caches (we actually only check for L1 I$ fpr simplicity)
    - XY-memory
    - DSP extensions etc.

2. Identify ARC subsystems

3. Print core clock frequency

Signed-off-by: Alexey Brodkin

ARC: make generic print_cpuinfo() weak

2018-10-12T12:14:40+00:00

This allows board to override print_cpuinfo() because
they might know better which ARChitect template was used.
This way we may not only derive base architecture type and
version but more meaningful things like "ARC EM7D" instead of
simple "ARC EM", "ARC HS36" instead of "ARC HS".

Signed-off-by: Alexey Brodkin

ARC: Implement print_cpuinfo()

2018-10-05T13:55:42+00:00

Once we enable DISPLAY_CPUINFO for ARC we'll see
ARC core family and version printed on boot.

Signed-off-by: Alexey Brodkin