[U-Boot] [PATCH v2 0/2] While trying to compile u-boot in thumb due space constraints on a mxs

[Klaus Goger]

platform it was observed that there are some thumb-interwork issues
in the handwritten assembly files.

Since the first patch only applies to ARM926EJS and no board on that platform
has thumb enabled for now,it was probably never observed.

The second one applies to the ARM specific assembly memcpy implementation
that is not enabled on any of the boards enabling thumb.

grep -l CONFIG_SYS_THUMB_BUILD=y configs/* | \
  xargs grep -c CONFIG_USE_ARCH_MEMCPY
configs/apalis_imx6_nospl_com_defconfig:0
configs/apalis_imx6_nospl_it_defconfig:0
configs/bk4r1_defconfig:0
configs/colibri_imx6_nospl_defconfig:0
configs/colibri_imx7_defconfig:0
configs/colibri_vf_defconfig:0
configs/highbank_defconfig:0
configs/openrd_base_defconfig:0
configs/openrd_client_defconfig:0
configs/openrd_ultimate_defconfig:0
configs/pcm052_defconfig:0
configs/tbs2910_defconfig:0
configs/x600_defconfig:0

With CONFIG_USE_ARCH_MEMCPY on our mxs platform the speedup for memcopy
was about 100%.

Changes in v2:
- use bl instead of blx to call lowlevel_init
- remove mxs tag as it apply to all arm926ejs platforms

Klaus Goger (2):
  arm: make arm926ejs startup code thumb compatible
  arm: Make arch specific memcpy thumb-safe.

 arch/arm/cpu/arm926ejs/start.S | 6 +++---
 arch/arm/lib/memcpy.S          | 8 +++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

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2.11.0