8e30c13441
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
37 lines
1.5 KiB
C
37 lines
1.5 KiB
C
/****************************************************************************
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* arch/risc-v/include/sg2000/irq.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_RISCV_INCLUDE_SG2000_IRQ_H
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#define __ARCH_RISCV_INCLUDE_SG2000_IRQ_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Map RISC-V exception code to NuttX IRQ */
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#define NR_IRQS (RISCV_IRQ_SEXT + 57)
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#endif /* __ARCH_RISCV_INCLUDE_SG2000_IRQ_H */
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