Introduce a new "zephyr,memory-region" compatible to be used when a new
memory region must be created in the linker script from the devicetree
nodes using the compatible.
Remove also the LINKER_DT_REGION_FROM_NODE macro and add a new
LINKER_DT_REGIONS macro to cycle through all the compatible regions.
In the same PR modify the DTS files and the linker scripts.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Remove the "cpus" node from the SoC device tree. The Zynq-7000
comes with either 1 or 2 CPU cores. While all the different
models within this SoC family have different capabilities in
particular when it comes to the programmable logic part and
I/O pins, there is no difference between the XC7Zxxx (2 cores)
and XC7ZxxxS (1 core) models when it comes to the peripherals
integrated in the SoC. Therefore, it makes little sense to
add a zynq7000s.dtsi next to the existing zynq7000.dtsi whose
only difference is the CPU count. Instead, the "cpus" node,
containing the appropriate CPU core definitions for the SoC
the respective target is equipped with, shall be specified at
the board level instead.
Signed-off-by: Immo Birnbaum <Immo.Birnbaum@Weidmueller.com>
Assign unique memory-region attribute values for both OCM
memory areas so that the lower region starting at address 0
is identified as OCM_LOW, while the alternate location for
the OCM memory is identified as OCM_HIGH.
The updated linker command file will use those identifiers
for OCM section mapping based on which of the two OCM areas
is marked as 'chosen' at the board level.
Signed-off-by: Immo Birnbaum <Immo.Birnbaum@weidmueller.com>
Add SoC-specific code, the basic device tree and Kconfig data as well
as the corresponding linker command file for the Xilinx Zynq-7000
family of SoCs. This SoC - either as a QEMU simulation or on actual
hardware such as the Avnet/Digilent ZedBoard - is suitable as an ini-
tial target for the ARMv7 Cortex-A support.
Signed-off-by: Immo Birnbaum <Immo.Birnbaum@weidmueller.com>
