[U-Boot] [RFC PATCH 0/5] arm: Introduce v7R support

[Michal Simek]

On 24.4.2018 17:06, Lokesh Vutla wrote:
> Hi Michal,
> 
> On Tuesday 24 April 2018 08:06 PM, Michal Simek wrote:
>> Hi Lokesh,
>>
>> On 24.4.2018 14:54, Lokesh Vutla wrote:
>>> The Cortex-R* processors are a mid-range CPUs for use in deeply-embedded,
>>> real-time systems. It implements the ARMv7-R architecture, and includes
>>> Thumb-2 technology for optimum code density and processing throughput.
>>>
>>> Except for MPU(Memory Protection Unit) and few CP15 registers, most of the
>>> features are compatible with v7 architecture. This series adds minimal
>>> support for v7-R architecture by reusing the v7 support. Also adding
>>> support for MPU.
>>>
>>> Lokesh Vutla (4):
>>>   arm: v7: Update VBAR only if available
>>>   arm: Kconfig: Add entry for MMU
>>>   arm: v7R: Add support for MPU
>>>   arm: v7R: Add support for enabling caches
>>>
>>> Michal Simek (1):
>>>   arm: v7R: Add initial support
>>>
>>>  arch/arm/Kconfig                  |  33 ++++++++
>>>  arch/arm/Makefile                 |   2 +
>>>  arch/arm/cpu/armv7/Makefile       |   2 +
>>>  arch/arm/cpu/armv7/mpu_v7r.c      | 120 ++++++++++++++++++++++++++++++
>>>  arch/arm/cpu/armv7/start.S        |   4 +
>>>  arch/arm/cpu/armv7m/Makefile      |   3 +-
>>>  arch/arm/cpu/armv7m/mpu.c         |  41 +---------
>>>  arch/arm/include/asm/armv7m_mpu.h |  69 +++++++++++++++++
>>>  arch/arm/lib/Makefile             |   5 +-
>>>  arch/arm/lib/cache-cp15.c         |  14 +++-
>>>  10 files changed, 248 insertions(+), 45 deletions(-)
>>>  create mode 100644 arch/arm/cpu/armv7/mpu_v7r.c
>>>
>>
>> I have tested your series, also wired MPU (protect one region and try to
>> access it) and with caches on and off (running mtest to see number of
>> iterations and improving numbers with cache on) and nothing is showing
>> any functional fundamental problem.
> 
> Thanks a lot for testing. Can I take it as your Tested-by:?

I didn't add it officially because I expect v1 based on comments. It
means I will test v1 again and give you that.

Thanks,
Michal