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[125.237.39.90]) by smtp.gmail.com with ESMTPSA id 75sm97691351pfo.103.2018.01.02.16.47.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 02 Jan 2018 16:47:14 -0800 (PST) From: Michael Clark To: qemu-devel@nongnu.org Date: Wed, 3 Jan 2018 13:44:23 +1300 Message-Id: <1514940265-18093-20-git-send-email-mjc@sifive.com> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1514940265-18093-1-git-send-email-mjc@sifive.com> References: <1514940265-18093-1-git-send-email-mjc@sifive.com> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:400e:c00::241 Subject: [Qemu-devel] [PATCH v1 19/21] SiFive Freedom E300 RISC-V Machine X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Bastian Koppelmann , Michael Clark , Sagar Karandikar Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP This provides a RISC-V Board compatible with the the SiFive E300 SDK. The following machine is implemented: - 'sifive_e300'; CLINT, PLIC, UART, AON, GPIO, QSPI, PWM Signed-off-by: Michael Clark --- hw/riscv/sifive_e300.c | 232 +++++++++++++++++++++++++++++++++++++++++ include/hw/riscv/sifive_e300.h | 79 ++++++++++++++ 2 files changed, 311 insertions(+) create mode 100644 hw/riscv/sifive_e300.c create mode 100644 include/hw/riscv/sifive_e300.h diff --git a/hw/riscv/sifive_e300.c b/hw/riscv/sifive_e300.c new file mode 100644 index 0000000..bbea55a --- /dev/null +++ b/hw/riscv/sifive_e300.c @@ -0,0 +1,232 @@ +/* + * QEMU RISC-V Board Compatible with SiFive E300 SDK + * + * Copyright (c) 2017 SiFive, Inc. + * + * Provides a board compatible with the bsp in the SiFive E300 SDK: + * + * 0) UART + * 1) CLINT (Core Level Interruptor) + * 2) PLIC (Platform Level Interrupt Controller) + * 3) PRCI (Power, Reset, Clock, Interrupt) + * 4) Registers emulated as RAM: AON, GPIO, QSPI, PWM + * 5) Flash memory emulated as RAM + * + * The Mask ROM reset vector jumps to the flash payload at 0x2040_0000. + * The OTP ROM and Flash boot code will be emulated in a future version. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#include "qemu/osdep.h" +#include "qemu/log.h" +#include "qemu/error-report.h" +#include "hw/hw.h" +#include "hw/boards.h" +#include "hw/loader.h" +#include "hw/sysbus.h" +#include "hw/char/serial.h" +#include "target/riscv/cpu.h" +#include "hw/riscv/riscv_hart.h" +#include "hw/riscv/sifive_plic.h" +#include "hw/riscv/sifive_clint.h" +#include "hw/riscv/sifive_prci.h" +#include "hw/riscv/sifive_uart.h" +#include "hw/riscv/sifive_e300.h" +#include "chardev/char.h" +#include "sysemu/arch_init.h" +#include "exec/address-spaces.h" +#include "elf.h" + +static const struct MemmapEntry { + hwaddr base; + hwaddr size; +} sifive_e300_memmap[] = { + [SIFIVE_E300_DEBUG] = { 0x0, 0x100 }, + [SIFIVE_E300_MROM] = { 0x1000, 0x2000 }, + [SIFIVE_E300_OTP] = { 0x20000, 0x2000 }, + [SIFIVE_E300_CLINT] = { 0x2000000, 0x10000 }, + [SIFIVE_E300_PLIC] = { 0xc000000, 0x4000000 }, + [SIFIVE_E300_AON] = { 0x10000000, 0x8000 }, + [SIFIVE_E300_PRCI] = { 0x10008000, 0x8000 }, + [SIFIVE_E300_OTP_CTRL] = { 0x10010000, 0x1000 }, + [SIFIVE_E300_GPIO0] = { 0x10012000, 0x1000 }, + [SIFIVE_E300_UART0] = { 0x10013000, 0x1000 }, + [SIFIVE_E300_QSPI0] = { 0x10014000, 0x1000 }, + [SIFIVE_E300_PWM0] = { 0x10015000, 0x1000 }, + [SIFIVE_E300_UART1] = { 0x10023000, 0x1000 }, + [SIFIVE_E300_QSPI1] = { 0x10024000, 0x1000 }, + [SIFIVE_E300_PWM1] = { 0x10025000, 0x1000 }, + [SIFIVE_E300_QSPI2] = { 0x10034000, 0x1000 }, + [SIFIVE_E300_PWM2] = { 0x10035000, 0x1000 }, + [SIFIVE_E300_XIP] = { 0x20000000, 0x20000000 }, + [SIFIVE_E300_DTIM] = { 0x80000000, 0x4000 } +}; + +static uint64_t identity_translate(void *opaque, uint64_t addr) +{ + return addr; +} + +static uint64_t load_kernel(const char *kernel_filename) +{ + uint64_t kernel_entry, kernel_high; + + if (load_elf(kernel_filename, identity_translate, NULL, + &kernel_entry, NULL, &kernel_high, + /* little_endian = */ 0, ELF_MACHINE, 1, 0) < 0) { + error_report("qemu: could not load kernel '%s'", kernel_filename); + exit(1); + } + return kernel_entry; +} + +static void sifive_mmio_emulate(MemoryRegion *parent, const char *name, + uintptr_t offset, uintptr_t length) +{ + MemoryRegion *mock_mmio = g_new(MemoryRegion, 1); + memory_region_init_ram(mock_mmio, NULL, name, length, &error_fatal); + memory_region_add_subregion(parent, offset, mock_mmio); +} + +static void riscv_sifive_e300_init(MachineState *machine) +{ + const struct MemmapEntry *memmap = sifive_e300_memmap; + + SiFiveE300State *s = g_new0(SiFiveE300State, 1); + MemoryRegion *sys_mem = get_system_memory(); + MemoryRegion *main_mem = g_new(MemoryRegion, 1); + MemoryRegion *mask_rom = g_new(MemoryRegion, 1); + MemoryRegion *xip_mem = g_new(MemoryRegion, 1); + + /* Initialize SOC */ + object_initialize(&s->soc, sizeof(s->soc), TYPE_RISCV_HART_ARRAY); + object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), + &error_abort); + object_property_set_str(OBJECT(&s->soc), TYPE_RISCV_CPU_IMAC_PRIV_1_10, + "cpu-model", &error_abort); + object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts", + &error_abort); + object_property_set_bool(OBJECT(&s->soc), true, "realized", + &error_abort); + + /* Data Tightly Integrated Memory */ + memory_region_init_ram(main_mem, NULL, "riscv.sifive.e300.ram", + memmap[SIFIVE_E300_DTIM].size, &error_fatal); + memory_region_add_subregion(sys_mem, + memmap[SIFIVE_E300_DTIM].base, main_mem); + + /* Mask ROM */ + memory_region_init_ram(mask_rom, NULL, "riscv.sifive.e300.mrom", + memmap[SIFIVE_E300_MROM].size, &error_fatal); + memory_region_add_subregion(sys_mem, + memmap[SIFIVE_E300_MROM].base, mask_rom); + + /* MMIO */ + s->plic = sifive_plic_create(memmap[SIFIVE_E300_PLIC].base, + (char *)SIFIVE_E300_PLIC_HART_CONFIG, + SIFIVE_E300_PLIC_NUM_SOURCES, + SIFIVE_E300_PLIC_NUM_PRIORITIES, + SIFIVE_E300_PLIC_PRIORITY_BASE, + SIFIVE_E300_PLIC_PENDING_BASE, + SIFIVE_E300_PLIC_ENABLE_BASE, + SIFIVE_E300_PLIC_ENABLE_STRIDE, + SIFIVE_E300_PLIC_CONTEXT_BASE, + SIFIVE_E300_PLIC_CONTEXT_STRIDE, + memmap[SIFIVE_E300_PLIC].size); + sifive_clint_create(memmap[SIFIVE_E300_CLINT].base, + memmap[SIFIVE_E300_CLINT].size, smp_cpus, + SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.aon", + memmap[SIFIVE_E300_AON].base, memmap[SIFIVE_E300_AON].size); + sifive_prci_create(memmap[SIFIVE_E300_PRCI].base); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.gpio0", + memmap[SIFIVE_E300_GPIO0].base, memmap[SIFIVE_E300_GPIO0].size); + sifive_uart_create(sys_mem, memmap[SIFIVE_E300_UART0].base, + serial_hds[0], SIFIVE_PLIC(s->plic)->irqs[SIFIVE_E300_UART0_IRQ]); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.qspi0", + memmap[SIFIVE_E300_QSPI0].base, memmap[SIFIVE_E300_QSPI0].size); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.pwm0", + memmap[SIFIVE_E300_PWM0].base, memmap[SIFIVE_E300_PWM0].size); + /* sifive_uart_create(sys_mem, memmap[SIFIVE_E300_UART1].base, + serial_hds[1], SIFIVE_PLIC(s->plic)->irqs[SIFIVE_E300_UART1_IRQ]); */ + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.qspi1", + memmap[SIFIVE_E300_QSPI1].base, memmap[SIFIVE_E300_QSPI1].size); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.pwm1", + memmap[SIFIVE_E300_PWM1].base, memmap[SIFIVE_E300_PWM1].size); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.qspi2", + memmap[SIFIVE_E300_QSPI2].base, memmap[SIFIVE_E300_QSPI2].size); + sifive_mmio_emulate(sys_mem, "riscv.sifive.e300.pwm2", + memmap[SIFIVE_E300_PWM2].base, memmap[SIFIVE_E300_PWM2].size); + + /* Flash memory */ + memory_region_init_ram(xip_mem, NULL, "riscv.sifive.e300.xip", + memmap[SIFIVE_E300_XIP].size, &error_fatal); + memory_region_set_readonly(xip_mem, true); + memory_region_add_subregion(sys_mem, + memmap[SIFIVE_E300_XIP].base, xip_mem); + + /* Mask ROM reset vector */ + uint32_t reset_vec[2] = { + 0x204002b7, /* 0x1000: lui t0,0x20400 */ + 0x00028067, /* 0x1004: jr t0 */ + }; + + /* copy in the reset vector */ + cpu_physical_memory_write(0x1000, reset_vec, sizeof(reset_vec)); + memory_region_set_readonly(mask_rom, true); + + if (machine->kernel_filename) { + load_kernel(machine->kernel_filename); + } +} + +static int riscv_sifive_e300_sysbus_device_init(SysBusDevice *sysbusdev) +{ + return 0; +} + +static void riscv_sifive_e300_class_init(ObjectClass *klass, void *data) +{ + SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass); + k->init = riscv_sifive_e300_sysbus_device_init; +} + +static const TypeInfo riscv_sifive_e300_device = { + .name = TYPE_SIFIVE_E300, + .parent = TYPE_SYS_BUS_DEVICE, + .instance_size = sizeof(SiFiveE300State), + .class_init = riscv_sifive_e300_class_init, +}; + +static void riscv_sifive_e300_machine_init(MachineClass *mc) +{ + mc->desc = "RISC-V Board compatible with SiFive E300 SDK"; + mc->init = riscv_sifive_e300_init; + mc->max_cpus = 1; +} + +DEFINE_MACHINE("sifive_e300", riscv_sifive_e300_machine_init) + +static void riscv_sifive_e300_register_types(void) +{ + type_register_static(&riscv_sifive_e300_device); +} + +type_init(riscv_sifive_e300_register_types); diff --git a/include/hw/riscv/sifive_e300.h b/include/hw/riscv/sifive_e300.h new file mode 100644 index 0000000..453c43b --- /dev/null +++ b/include/hw/riscv/sifive_e300.h @@ -0,0 +1,79 @@ +/* + * SiFive E300 series machine interface + * + * Copyright (c) 2017 SiFive, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ + +#ifndef HW_SIFIVE_E300_H +#define HW_SIFIVE_E300_H + +#define TYPE_SIFIVE_E300 "riscv.sifive.e300" + +#define SIFIVE_E300(obj) \ + OBJECT_CHECK(SiFiveE300State, (obj), TYPE_SIFIVE_E300) + +typedef struct SiFiveE300State { + /*< private >*/ + SysBusDevice parent_obj; + + /*< public >*/ + RISCVHartArrayState soc; + DeviceState *plic; +} SiFiveE300State; + +enum { + SIFIVE_E300_DEBUG, + SIFIVE_E300_MROM, + SIFIVE_E300_OTP, + SIFIVE_E300_CLINT, + SIFIVE_E300_PLIC, + SIFIVE_E300_AON, + SIFIVE_E300_PRCI, + SIFIVE_E300_OTP_CTRL, + SIFIVE_E300_GPIO0, + SIFIVE_E300_UART0, + SIFIVE_E300_QSPI0, + SIFIVE_E300_PWM0, + SIFIVE_E300_UART1, + SIFIVE_E300_QSPI1, + SIFIVE_E300_PWM1, + SIFIVE_E300_QSPI2, + SIFIVE_E300_PWM2, + SIFIVE_E300_XIP, + SIFIVE_E300_DTIM +}; + +enum { + SIFIVE_E300_UART0_IRQ = 3, + SIFIVE_E300_UART1_IRQ = 4 +}; + +#define SIFIVE_E300_PLIC_HART_CONFIG "M" +#define SIFIVE_E300_PLIC_NUM_SOURCES 127 +#define SIFIVE_E300_PLIC_NUM_PRIORITIES 7 +#define SIFIVE_E300_PLIC_PRIORITY_BASE 0x0 +#define SIFIVE_E300_PLIC_PENDING_BASE 0x1000 +#define SIFIVE_E300_PLIC_ENABLE_BASE 0x2000 +#define SIFIVE_E300_PLIC_ENABLE_STRIDE 0x80 +#define SIFIVE_E300_PLIC_CONTEXT_BASE 0x200000 +#define SIFIVE_E300_PLIC_CONTEXT_STRIDE 0x1000 + +#endif