42b3a4b7cc
Removes a whole lot of unnecessary boilerplate code. Machines don't need to be objects. The expansion of the SOC object model for the RISC-V machines will happen in the future as SiFive plans to add their FE310 and FU540 SOCs to QEMU. However, it seems that this present boilerplate is complete unnecessary. Cc: Sagar Karandikar <sagark@eecs.berkeley.edu> Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> Signed-off-by: Michael Clark <mjc@sifive.com> Signed-off-by: Palmer Dabbelt <palmer@sifive.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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* SiFive U series machine interface
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*
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* Copyright (c) 2017 SiFive, Inc.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_SIFIVE_U_H
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#define HW_SIFIVE_U_H
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typedef struct SiFiveUState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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RISCVHartArrayState soc;
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DeviceState *plic;
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void *fdt;
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int fdt_size;
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} SiFiveUState;
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enum {
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SIFIVE_U_DEBUG,
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SIFIVE_U_MROM,
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SIFIVE_U_CLINT,
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SIFIVE_U_PLIC,
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SIFIVE_U_UART0,
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SIFIVE_U_UART1,
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SIFIVE_U_DRAM
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};
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enum {
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SIFIVE_U_UART0_IRQ = 3,
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SIFIVE_U_UART1_IRQ = 4
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};
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enum {
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SIFIVE_U_CLOCK_FREQ = 1000000000
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};
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#define SIFIVE_U_PLIC_HART_CONFIG "MS"
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#define SIFIVE_U_PLIC_NUM_SOURCES 127
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#define SIFIVE_U_PLIC_NUM_PRIORITIES 7
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#define SIFIVE_U_PLIC_PRIORITY_BASE 0x0
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#define SIFIVE_U_PLIC_PENDING_BASE 0x1000
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#define SIFIVE_U_PLIC_ENABLE_BASE 0x2000
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#define SIFIVE_U_PLIC_ENABLE_STRIDE 0x80
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#define SIFIVE_U_PLIC_CONTEXT_BASE 0x200000
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#define SIFIVE_U_PLIC_CONTEXT_STRIDE 0x1000
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#if defined(TARGET_RISCV32)
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#define SIFIVE_U_CPU TYPE_RISCV_CPU_SIFIVE_U34
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#elif defined(TARGET_RISCV64)
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#define SIFIVE_U_CPU TYPE_RISCV_CPU_SIFIVE_U54
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#endif
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#endif
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