Add initial support for the VPR RISC-V core found in the new nRF54 SoCs.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
The OpenTitan PLIC has support for up to 255 interrupt vectors, so
set it to that. Previously was set to number of IRQs used.
Signed-off-by: Tyler Ng <tkng@rivosinc.com>
There is default 15K-ohm pull-down for USB controller.
To disable the default pull-down to avoid signal contention in GPIO mode.
Signed-off-by: Ren Chen <Ren.Chen@ite.com.tw>
This allows to link code and data blocks, e.g. the vector table, into
tightly coupled memory using `zephyr_linker_sources`.
Signed-off-by: Greter Raffael <rgreter@baumer.com>
When set, this GPIO controller has pins associated with the
keyboard controller. In this case the reg_gpcr property is
overloaded and used to write the keyboard GCTRL register
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
It looks like all SoCs in tree check if an exception comes from an IRQ
the same way, so let's provide a common logic by default, still
customizable if the SoC selects RISCV_SOC_ISR_CHECK.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Some definitions were only used in soc.c, there's no need to expose them
in a public header like soc.h.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
<soc.h> is needed to pull some APIs defined in soc.h.
<fsl_device_registers.h> is needed to access EVENT0/1 addresses.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
If CONFIG_LEGACY_CLIC is disabled, i.e. we adhere to the current CLIC
spec, the mode bits of mtvec have to be 0x3. Everything else is
reserved. Therefore if CONFIG_RISCV_VECTORED_MODE is enabled, the
current implementation is correct. If CONFIG_RISCV_VECTORED_MODE is
disabled, the mode bits have to be set, too.
Signed-off-by: Greter Raffael <rgreter@baumer.com>
Setting IT8XXX2_EGPIO_EEPODD bit will disable EGAD pin output driving
to avoid leakage when GPIO E1/E2 on it82002 are set to alternate
function.
Signed-off-by: Tim Lin <tim2.lin@ite.corp-partner.google.com>
Signed-off-by: Dino Li <Dino.Li@ite.com.tw>
For a CLIC the vector table has to be aligned by 512 bytes, if there are
between 65 and 128 interrupts, which is the case for the gd32vf103.
`isr_wrapper` has to be aligned to 64 bytes, s.t. the lower 6 bits of
mtvec are 0.
Signed-off-by: Greter Raffael <rgreter@baumer.com>
For a proper initialisation, the soc-specific `__nuclei_start` has to
be executed before the common `__start`. To ensure that `__nuclei_start`
is linked first, I added the linker section init.
Signed-off-by: Greter Raffael <rgreter@baumer.com>
A lot of the entry.S is again implemented in common/vector.S.
I removed everything redundant and changed the jump to the common
symbol __start at the end.
Signed-off-by: Greter Raffael <rgreter@baumer.com>
Instead of custom SOC_MCAUSE_EXP_MASK definition. Note that SoCs
selecting RISCV_PRIVILEGED already used such config indirectly (see
changes in soc_common.h).
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
The MCAUSE register has the "Interrupt" flag defined defined at XLEN-1
position (31 for 32-bit, 63 for 64-bit). This is not an SoC specific
option, and there's no need to expose it publicly.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
As defined in Table 3.6 of "The RISC-V Instruction Set Manual, Volume
II: Privileged Architecture". Delete all spread definitions of the same,
weirdly prefixed with "SOC".
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Because it was exclusively used by the "common" RISC-V privileged code
to build CPU idle routines that are now handled by arch level code.
Also, all platforms defaulted to "y", making it pointless in practice.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
This option is no longer needed, all SoCs have been moved out from
soc/riscv/riscv-privileged folder.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Reorganized as follows:
- Created a new SiFive Freedom family
- Created 3 new series: E300/E500/E700
- Created Socs within each series (e.g. E340)
Also moved out of riscv-privileged folder.
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Merge both series into a new family: microchip_miv [1], moving them out
of riscv-privileged. Updated naming to stay closer to what vendor
announces on their website.
[1]: https://www.microchip.com/en-us/products/fpgas-and-plds/
fpga-and-soc-design-tools/mi-v
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
Move out of riscv-privileged and convert to a standalone SoC. Note
that the family/series structure has been dropped in favor of a single
SoC (what NEORV32 seems to be).
Signed-off-by: Gerard Marull-Paretas <gerard@teslabs.com>
