Merge tag 'arc-updates-for-2019.01-rc1' of git://git.denx.de/u-boot-arc

We introduce much better automatic identification of ARC cores.

1. Try to match found HW features to known ARC core template

Merge tag 'arc-updates-for-2019.01-rc1' of git://git.denx.de/u-boot-arc

We introduce much better automatic identification of ARC cores.

1. Try to match found HW features to known ARC core templates
2. Print CPU frequency for all ARC boards
3. Add more board-specific info

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arc: devboards: Implement checkboard()

This allows us to print nice board name on boot.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

arc: Get rid of board-specific print_cpuinfo()

Since we now do advanced CPU identification in
generic ARC code there's no need to have per-board
hardcoded data.

Signed-off-by: Alexey Brodkin <abrod

arc: Get rid of board-specific print_cpuinfo()

Since we now do advanced CPU identification in
generic ARC code there's no need to have per-board
hardcoded data.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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Merge tag 'arc-more-updates-for-2018.11-rc2-2' of git://git.denx.de/u-boot-arc

More fixes and improvements for ARC here:

Fixes (this time included for real):
* Take care of global uninitialized va

Merge tag 'arc-more-updates-for-2018.11-rc2-2' of git://git.denx.de/u-boot-arc

More fixes and improvements for ARC here:

Fixes (this time included for real):
* Take care of global uninitialized variables
They used to be put right after .bss section and were never
zeroed as they should be. Now merged with normal .bss

Improvements:
* Print more verbose CPU info for boards built on real silicon
* Add support for SD-card detection on all ARC boards
* Quite a few fixes for IoT DK
- Support reset by command
- Print of CPU freq on boot
- Link for eFlash etc

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axs10x/emdk/hsdk/iot_dk: Implement board_mmc_getcd()

So now we may detect MMC/SD-card existence and
instead of completely misleading message on missing card:
------------------------>8--------------

axs10x/emdk/hsdk/iot_dk: Implement board_mmc_getcd()

So now we may detect MMC/SD-card existence and
instead of completely misleading message on missing card:
------------------------>8-----------------------
Loading Environment from FAT... Card did not respond to voltage select!
------------------------>8-----------------------

we now get very clear one:
------------------------>8-----------------------
Loading Environment from FAT... MMC: no card present
------------------------>8-----------------------

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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iot_dk/hsdk: Implement its own print_cpuinfo()

ARC IDENTITY register only encodes major architecture
type and version while for a particular board/silicon we
may know better which template was used

iot_dk/hsdk: Implement its own print_cpuinfo()

ARC IDENTITY register only encodes major architecture
type and version while for a particular board/silicon we
may know better which template was used and so we may identify
CPU more precise, which exactly we do here.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So

SPDX: Convert all of our single license tags to Linux Kernel style

When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from. So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry. Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents. There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>

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Merge tag 'arc-for-2018.05' of git://git.denx.de/u-boot-arc

More ARC changes and fixes for v2018.05

* Update of ARC tools to the most recent arc-2017.09
* Fix for compile-time warning for AXS10x

Merge tag 'arc-for-2018.05' of git://git.denx.de/u-boot-arc

More ARC changes and fixes for v2018.05

* Update of ARC tools to the most recent arc-2017.09
* Fix for compile-time warning for AXS10x
* Add support of platform-specific commands for HSDK
* Add support for on-board SPI flash on HSDK
Note though that for write support another series [1]
is required. I hope that Jagan will be able to review and
act on SPI flash improvement series before we get beyond RC1.

Also note that to get clean build for HSDK we need to disable
stack-usage check [2] as our current GCC erroneously tries to calculate
stack-usage on a naked function which leads to warning.

[1] https://patchwork.ozlabs.org/project/uboot/list/?series=35796
[2] https://patchwork.ozlabs.org/patch/894139/

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ARC: HSDK: Add platform-specific commands

This patch add support of hsdk platform-specific commands:

hsdk_clock set - set clock from axi_freq, cpu_freq and tun_freq
environment variables/command li

ARC: HSDK: Add platform-specific commands

This patch add support of hsdk platform-specific commands:

hsdk_clock set - set clock from axi_freq, cpu_freq and tun_freq
environment variables/command line arguments

hsdk_clock get - save clock frequencies to axi_freq, cpu_freq
and tun_freq environment variables

hsdk_clock print - show CPU, AXI, DDR and TUNNEL current
clock frequencies.

hsdk_clock print_all - show all currently used clock frequencies.

hsdk_init - setup board HW in one of pre-defined configuration
(hsdk_hs34 / hsdk_hs36 / hsdk_hs36_ccm / hsdk_hs38 /
hsdk_hs38_ccm / hsdk_hs38x2 / hsdk_hs38x3 / hsdk_hs38x4)

hsdk_go - run baremetal application on hsdk configured
by hsdk_init command.

This patch changes default behaviour of 'bootm' command:
now we are able to set number of CPUs to be kicked by setting
'core_mask' environment variable before 'bootm' command run.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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Merge git://git.denx.de/u-boot-arc

Alexey:
1. Significantly rework cache-related functionality.
In particular that fixes coherency problems in some corner-cases,
allows us to enable and dis

Merge git://git.denx.de/u-boot-arc

Alexey:
1. Significantly rework cache-related functionality.
In particular that fixes coherency problems in some corner-cases,
allows us to enable and disable caches in run-time and still
have properly running system, finally support execution from
real flash (before we used to run from DDR from the very beginning).

2. Remove string routines implemented in assembly.
That allows us to build and run U-Boot on wide range of ARC cores
with different configurations. I.e. whatever tuning is used on GCC's
command-line we'll get code for desired flavor of ARC.
Otherwise for each and every corner-case we would need to add ifdefs
in assembly code to accommodate missing instructions etc.

3. Get use of GCC's garbage collector which helps to slim-down resulting image
quite a bit.

4. Also now we may disable U-Boot self-relocation for ARC if needed either
by platform or for debugging purposes.

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ARC: bootm: Refactor GO and PREP subcommands implementation

Refactor GO and PREP subcommands implementation for a simpler
override in the boards platform code.

Signed-off-by: Eugeniy Paltsev <Eugen

ARC: bootm: Refactor GO and PREP subcommands implementation

Refactor GO and PREP subcommands implementation for a simpler
override in the boards platform code.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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Merge git://git.denx.de/u-boot-arc

ARC: HSDK: Fixup DW SDIO CIU frequency to 50000000Hz

DW SDIO controller has external CIU clock divider controlled via
register in the SDIO IP. Due to its unexpected default value
(we expected it to

ARC: HSDK: Fixup DW SDIO CIU frequency to 50000000Hz

DW SDIO controller has external CIU clock divider controlled via
register in the SDIO IP. Due to its unexpected default value
(we expected it to divide by 1 but in reality it divides by 8)
SDIO IP uses wrong CIU clock (it should be 100000000Hz but actual
is 12500000Hz) and works unstable (see STAR 9001204800).

So increase SDIO CIU frequency from actual 12500000Hz to 50000000Hz
by switching from the default divisor value (div-by-8) to the
minimum possible value of the divisor (div-by-2) in HSDK platform
code.

Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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Merge git://git.denx.de/u-boot-arc

arc: Add support for HS Development Kit board

ARC HS Development Kit board is a new low-cost
development platform sporting ARC HS38 in real silicon
with nice set of features such as:
* Quad-core AR

arc: Add support for HS Development Kit board

ARC HS Development Kit board is a new low-cost
development platform sporting ARC HS38 in real silicon
with nice set of features such as:
* Quad-core ARC HS38 with 512 kB L2 cache and running @1GHz
* 4Gb of DDR (we use only lowest 1Gb out of it now)
* Lots of DesigWare peripherals
* Different connectivity modules:
- Synopsys HAPS HT3
- Arduino-compatible connector
- MikroBUS

This initial commit supports the following peripherals:
* UART (DW 8250)
* Ethernet (DW GMAC)
* SD/MMC (DW Mobile Storage)
* USB 1.1 & 2.0

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

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