[Buildroot] [PATCH v3 0/3] Support 32-bit code generation for Armv8 targets

[kostap at marvell.com]

From: Konstantin Porotchkin <kostap at marvell.com>

This patch set adds support for building images for SoC that make usage
of Armv8 application CPUs and Cortex-M/Cortex-R service CPUs.
The application CPU cross-toolchain is unable to generate 32-bit THUMB
code, therefore usage of secondary toolchain is needed.
The required pre-built toolchain is taken from ARM developers site and
installed in host filesystem only.
The patch set makes use of dual toolchain for adding support for Marvell
Armada 3700 SoC that uses both Cortex-A53 and Cortex-M3 CPUs for running
system firmware.

V3 changes:
patch #1 (arm-gnu-rm-toolchain)
- Move the toolchain from installation folder to host FS instead of copy it
- Add symbolic links in $(HOST_DIR)/bin to the toolchain executables
- Add source files information (download link, license)
- Change the hash values from localy calculated sha256 to md5 provided by ARM
patch #2 (a3700-utils-marvell) - no changes
patch #3 (a3700 boot image build support)
- Use the $(HOST_DIR)/bin/* links instead of installation path for CROSS_CM3

V2 changes:
patch #1 (arm-gnu-rm-toolchain)
- Remove Config.in.host
- Remove custom extract command
- Set installation path to $(HOST_DIR)/opt//opt/gcc-arm-none-eabi
- Update commit message according to review notes
patch #2 (a3700-utils-marvell) - no changes
patch #3 (a3700 boot image build support)
- Update CROSS_CM3 path in arm-trusted-firmware to reflect patch #1 changes

Konstantin Porotchkin (3):
  package/arm-gnu-rm-toolchain: new package
  boot: a3700-utils-marvell: Add Armada-3700 utilities
  boot: arm-trusted-firmware: add support for Marvell Armada 3700

 boot/Config.in                                |  1 +
 boot/a3700-utils-marvell/Config.in            | 46 +++++++++++++++++++
 .../a3700-utils-marvell.hash                  |  2 +
 .../a3700-utils-marvell.mk                    | 28 +++++++++++
 .../arm-trusted-firmware.mk                   |  7 +++
 .../arm-gnu-rm-toolchain.hash                 |  3 ++
 .../arm-gnu-rm-toolchain.mk                   | 28 +++++++++++
 7 files changed, 115 insertions(+)
 create mode 100644 boot/a3700-utils-marvell/Config.in
 create mode 100644 boot/a3700-utils-marvell/a3700-utils-marvell.hash
 create mode 100644 boot/a3700-utils-marvell/a3700-utils-marvell.mk
 create mode 100644 package/arm-gnu-rm-toolchain/arm-gnu-rm-toolchain.hash
 create mode 100644 package/arm-gnu-rm-toolchain/arm-gnu-rm-toolchain.mk

-- 
2.17.1