This commit renames the `cortex_r` directory under the AArch32 to
`cortex_a_r`, in preparation for the AArch32 Cortex-A support.
The rationale for this renaming is that the Cortex-A and Cortex-R share
the same base design and the difference between them, other than the
MPU vs. MMU, is minimal.
Since most of the architecture port code and configurations will be
shared between the Cortex-A and Cortex-R architectures, it is
advantageous to have them together in the same directory.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
The Xilinx ZynqMP SoC embeds both Cortex-R "RPU" and Cortex-A "APU"
cores.
Since the current Zephyr architecture cannot support AMP of Cortex-R
and Cortex-A within the same project, the RPU and APU should be
considered separate platforms and handled accordingly.
This commit re-purposes the SOC_XILINX_ZYNQMP symbol as a helper symbol
indicating that Xilinx ZynqMP SoC is used, and adds a new symbol,
SOC_XILINX_ZYNQMP_RPU, for specifying the actual build target platform.
When Cortex-A support is added in the future, SOC_XILINX_ZYNQMP_APU
symbol should be added and used to conditionally handle APU-specific
code.
For more details, refer to the issue #20217.
Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
Before introducing the code for ARM64 (AArch64) we need to relocate the
current ARM code to a new AArch32 sub-directory. For now we can assume
that no code is shared between ARM and ARM64.
There are no functional changes. The code is moved to the new location
and the file paths are fixed to reflect this change.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
This commit adds support for the Zynq UltraScale+ MPSoC as a qemu based
platform for Cortex-R based testing. This SoC only supports an
interrupt controller and serial port for limited testing.
Signed-off-by: Bradley Bolen <bbolen@lexmark.com>
Stephanos Ioannidis