This PR adds support for the SOPHGO SG2000 SoC, based on T-Head C906 64-bit RISC-V Core. This will be used by the upcoming port of NuttX for Milk-V Duo S SBC.
Most of the code was derived from NuttX for Ox64 BL808. The source files are explained in the articles here: https://github.com/lupyuen/nuttx-sg2000
Modified Files in arch/risc-v:
`Kconfig`: Added ARCH_CHIP_SG2000 for SG2000 SoC
New Files in arch/risc-v:
`include/sg2000/chip.h`: SG2000 Definitions
`include/sg2000/irq.h`: External Interrupts
`src/sg2000/chip.h`: Interrupt Stack Macro
`src/sg2000/sg2000_allocateheap.c`: Kernel Heap
`src/sg2000/sg2000_head.S`: Linux Header and Boot Code
`src/sg2000/sg2000_irq.c`: Configure Interrupts
`src/sg2000/sg2000_irq_dispatch.c`: Dispatch Interrupts
`src/sg2000/sg2000_memorymap.h`: Memory Map
`src/sg2000/sg2000_mm_init.c`, `sg2000_mm_init.h`: Memory Mgmt
`src/sg2000/sg2000_pgalloc.c`: Page Allocator
`src/sg2000/sg2000_start.c`: Startup Code
`src/sg2000/sg2000_timerisr.c`: Timer Interrupt
`src/sg2000/hardware/sg2000_memorymap.h`: PLIC and UART Base Address
`src/sg2000/hardware/sg2000_plic.h`: PLIC Register Addresses
`src/sg2000/Kconfig`: SG2000 Config
`src/sg2000/Make.defs`: Makefile
There is no need to use kernel build for S-mode all the time. As cpu
scratch is supported for non kernel mode build, it is possible to use
flat build for S-mode.
Add flat build support for risc-v S mode.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
This applies uintreg_t in risc-v commons and fixes araised ci issues
for multiple devices. The FLAT build runs on qemu-rv64ilp32 target.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
This adds support of rv64ilp32 toolchain available from Github repo
`ruyisdk/riscv-gnu-toolchain-rv64ilp32`. With this 32-bit nuttx can
be generated for RV64 devices.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
* arch/risc-v/src/common/Toolchain.defs
arch/xtensa/src/lx6/Toolchain.defs
arch/xtensa/src/lx7/Toolchain.defs
- Define SHMODULEFLAGS etc. for sotest/dynload
- Add --entry=__start to SHMODULEFLAGS
* boards/arm64/qemu/qemu-armv8a/scripts/Make.defs
boards/sim/sim/sim/scripts/Make.defs
- Define SHMODULEFLAGS etc. for sotest/dynload
For newer devices, IDF bootloader is not supported because the
devices are able to boot directly into NuttX or use MCUBoot to
enable OTA and security features.
This commit enables users to select the legacy bootloader (IDF
bootloader) in `menuconfig` directly. Please note, that this is a
legacy option intended to support devices already deployed and it
isn't recommended for new designs.
*Note:* ldmd2 is ldc2-wrapper, allow using dmd frontend flags.
This support may be extended to gdc (gnu) if nuttx developers demand it
or are interested in it.
Check return value of mpfs_board_pmp_setup() and
jump to mpfs_board_pmp_error() in case of error.
Signed-off-by: Jani Paalijarvi <jani.paalijarvi@unikie.com>
Cache the next timeout value in the drivers instance and update the mtimecmp value once. This is advantageous as the opensbi ecall to set the timer is expensive in systems which don't have the supervisor mode timer extension.
This patch changes how user service calls are executed:
Instead of using the common interrupt logic, execute the user service
call directly.
Why? When a user makes a service call request, all of the service call
parameters are already loaded into the correct registers, thus it makes
no sense to first clobber them and then reload them, which is what the
old logic does. It is much more effective to run the system call directly.
During a user system call the interrupts must be re-enabled, which the
new logic does as soon as we know the exception is a user service call
request.
This patch does NOT change the behavior of reserved system calls (like
switch_context), only the user service call request is affected.
Also, convert the type to union; we don't need the list element once
the item has been popped from the free list (the linkage is never needed
when the item is in use).
This provides an alternate tickless scheduling method, which uses the riscv
mtimer as a timebase, allowing the time and timeh registers to used
throughout an application.
The exiting tickless method, using Litex's timer0 has been left in place, as
it is a more performant option, but currently has the potential issue
identified in #11189.
when repeatedly enabling and disabling string-controlled configurations,
the generated toolchain configuration may be incorrect.
Signed-off-by: xuxin19 <xuxin19@xiaomi.com>
This is to fix issue in [this log](https://github.com/apache/nuttx/actions/runs/9173629303/job/25222879619):
```
Configuration/Tool: esp32c3-generic/twai esp32c6-devkitm/twai esp32c6-devkitc/twai esp32h2-devkit/twai
Error: common/espressif/esp_twai.c:242:7: error: variable 'ret' set but not used [-Werror=unused-but-set-variable]
```
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
By default, submodules are cloned with `--depth=1`. This continues
to be true if `DISABLE_GIT_DEPTH` environment variable is not
defined (and it is not defined by default). But, if defined the
submodules will be fully cloned (without the `--depth` parameter).
The original names are confusing; the symbols' addresses point to the start and end of the
sbi executable ram area. This may also reside in l2lim and not in ddr, depending on the
configuration, and this is defined in the linker script.
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
This commits replicates some changes on files that were originally
written for other Espressif SoCs and inspired new implementations.
Eventually, these new implementations were improved and this commit
replicates these changes on the original sources.
Avoid using static mutex and recursive mutex as the resource to be
acquired/release. Instead, create a specific lock for each call if
it does not exist.
The bc022f8cd8 introduces a static way to calculate idle stack
address for risc-v platform. However, it uses the reverse order
to access idle stack, which breaks boards with smp configuration.
Correct the idle stack order of g_cpux_idlestack.
Fixes: bc022f8cd8 ("arch/risc-v: unify idle stack calculation")
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
As all the board allocate idle stack from _ebss. The idle stack
layout is fix and can be computed directly by using _ebss. There
is no need to use g_cpux_idlestack array anymore, remove it.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
As the stack layout is unified, it is possible to
use a unify formula to calculate the top of idle
stack.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
ESP32 SoC use a static allocated array as idle stack. To fit
the existed idle stack allocation, make idle stack allocated
from ebss for the whole esp32 series.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
This adds SBI specfication v0.3 based `riscv_sbi_system_reset()` to
support SBI firmware based system reset in kernel mode.
Signed-off-by: Yanfeng Liu <yfliu2008@qq.com>
1. Adjust code to avoid PM wakelock->count less than or equal to 0.
2. Fix some document format issues.
Signed-off-by: chenwen@espressif.com <chenwen@espressif.com>
Although almost all board support allocating idle stack after ebss,
bl602 have a different memory layout for idle stack. To unify them,
make idle stack allocated from ebss for bl602.
Signed-off-by: Inochi Amaoto <inochiama@outlook.com>
