Moves the flash memory definitions from Kconfig to device tree for the
rv32m1 ri5cy and zero-riscy cores.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Moves the sram memory definitions from Kconfig to device tree for the
rv32m1 ri5cy and zero-riscy cores.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Apply a similar fix to commit 0289a410ba
to the openisa_rv32m1 linker script for handling .srodata sections.
Otherwise we get oprhan read-only data section. Fix this by adding
the .srodata section to the RISC-V linker script.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
The OpenISA RV32M1 SoC has four CPU cores. Two of these are RISC-V
32-bit cores, which are named "RI5CY" and "ZERO-RISCY". (The other two
cores are ARM Cortex-M0+ and -M4.) This patch adds basic SoC
enablement for the RISC-V cores:
- basic dtsi, to be extended as additional drivers are added
- SoC definition in soc/riscv32/openisa_rv32m1 for RI5CY / ZERO-RISCY
- system timer driver for RI5CY, based on LPTMR0 peripheral
The timer driver will be generalized a bit soon once proper
multi-level interrupt support is available.
Emphasis is on supporting the RI5CY core as the more capable of the
two; the ZERO-RISCY SoC definitions are a good starting point, but
additional work setting up a dtsi and initial drivers is needed to
support that core.
Signed-off-by: Marti Bolivar <marti@foundries.io>
Signed-off-by: Michael Scott <mike@foundries.io>
