Introduce low-level debug for ARM architecture

Przemyslaw Marczak u-boot 1 version Aug 28, 2014 New

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v2 Latest Aug 28, 20140 of 6 patches 0 repliesNew

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None of the 6 patches the cover letter announces are in this archive.

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Patch	Przemyslaw Marczak
Series	T-b

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

Hello Masahiro,

Quoted 41 lines · Masahiro Yamada

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(-)

Quoted 6 lines

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 <[email protected]>

Best Regards,

Signature · 4 lines

Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com

Read the cover letter in its thread