[U-Boot] [PATCH v2 0/6] Introduce low-level debug for ARM architecture

[Przemyslaw Marczak]

Hello Masahiro,

On 08/28/2014 04:31 AM, Masahiro Yamada wrote:
>
> I have been in trouble for a while to debug some nasty problem
> where neighter a debugger nor printf() function is available.
>
> I found the lowlevel debug feature in ARM Linux can be used as is
> in U-Boot too.
>
> I tested this series on our SoCs (32bit ARM, specificly Coretex-A9).
> Because I was not sure about aarch64, I have this feature
> depend on "! ARM64".
>
> 1/6 and 2/6 refactor a bit and move CONFIG_ARM64 to Kconfig.
>
> 3/6 imports some source files from Linux 3.16 and
> 5/6 adds the Kconfig menu.
>
>
>
> Masahiro Yamada (6):
>    vexpress64: kconfig: consolidate CONFIG_TARGET_VEXPRESS_AEMV8A_SEMI
>    kconfig: armv8: move CONFIG_ARM64 to Kconfig
>    arm: debug: import debug files from Linux 3.16
>    arm: debug: replace license blocks with SPDX
>    arm: debug: add Kconfig entries for lowlevel debug
>    arm: debug: adjust for U-Boot
>
>   arch/arm/Kconfig                       |  13 +-
>   arch/arm/Kconfig.debug                 |  64 ++++++
>   arch/arm/cpu/armv8/Kconfig             |   7 +
>   arch/arm/include/debug/8250.S          |  52 +++++
>   arch/arm/lib/Makefile                  |   2 +
>   arch/arm/lib/debug.S                   | 136 ++++++++++++
>   board/armltd/vexpress64/Kconfig        |  24 --
>   board/freescale/ls2085a/Kconfig        |   8 -
>   configs/ls2085a_emu_D4_defconfig       |   2 +-
>   configs/ls2085a_emu_defconfig          |   2 +-
>   configs/ls2085a_simu_defconfig         |   2 +-
>   configs/vexpress_aemv8a_defconfig      |   1 -
>   configs/vexpress_aemv8a_semi_defconfig |   4 +-
>   include/linux/serial_reg.h             | 388 +++++++++++++++++++++++++++++++++
>   14 files changed, 664 insertions(+), 41 deletions(-)
>   create mode 100644 arch/arm/Kconfig.debug
>   create mode 100644 arch/arm/cpu/armv8/Kconfig
>   create mode 100644 arch/arm/include/debug/8250.S
>   create mode 100644 arch/arm/lib/debug.S
>   create mode 100644 include/linux/serial_reg.h
>
Tested on Trats2(Exynos4412) - works fine.

Tested-by: Przemyslaw Marczak <p.marczak at samsung.com>

Best Regards,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com