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										 |  |  | /*
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							|  |  |  |  * QEMU RISC-V Board Compatible with SiFive Freedom U SDK | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu | 
					
						
							|  |  |  |  * Copyright (c) 2017 SiFive, Inc. | 
					
						
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										 |  |  |  * Copyright (c) 2019 Bin Meng <bmeng.cn@gmail.com> | 
					
						
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										 |  |  |  * | 
					
						
							|  |  |  |  * Provides a board compatible with the SiFive Freedom U SDK: | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * 0) UART | 
					
						
							|  |  |  |  * 1) CLINT (Core Level Interruptor) | 
					
						
							|  |  |  |  * 2) PLIC (Platform Level Interrupt Controller) | 
					
						
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										 |  |  |  * 3) PRCI (Power, Reset, Clock, Interrupt) | 
					
						
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										 |  |  |  * 4) OTP (One-Time Programmable) memory with stored serial number | 
					
						
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										 |  |  |  * 5) GEM (Gigabit Ethernet Controller) and management block | 
					
						
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										 |  |  |  * | 
					
						
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										 |  |  |  * This board currently generates devicetree dynamically that indicates at least | 
					
						
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										 |  |  |  * two harts and up to five harts. | 
					
						
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										 |  |  |  * | 
					
						
							|  |  |  |  * This program is free software; you can redistribute it and/or modify it | 
					
						
							|  |  |  |  * under the terms and conditions of the GNU General Public License, | 
					
						
							|  |  |  |  * version 2 or later, as published by the Free Software Foundation. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * This program is distributed in the hope it will be useful, but WITHOUT | 
					
						
							|  |  |  |  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | 
					
						
							|  |  |  |  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for | 
					
						
							|  |  |  |  * more details. | 
					
						
							|  |  |  |  * | 
					
						
							|  |  |  |  * You should have received a copy of the GNU General Public License along with | 
					
						
							|  |  |  |  * this program.  If not, see <http://www.gnu.org/licenses/>.
 | 
					
						
							|  |  |  |  */ | 
					
						
							|  |  |  | 
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							|  |  |  | #include "qemu/osdep.h"
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							|  |  |  | #include "qemu/log.h"
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							|  |  |  | #include "qemu/error-report.h"
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							|  |  |  | #include "qapi/error.h"
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							|  |  |  | #include "hw/boards.h"
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							|  |  |  | #include "hw/loader.h"
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							|  |  |  | #include "hw/sysbus.h"
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							|  |  |  | #include "hw/char/serial.h"
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										 |  |  | #include "hw/cpu/cluster.h"
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										 |  |  | #include "hw/misc/unimp.h"
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										 |  |  | #include "target/riscv/cpu.h"
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							|  |  |  | #include "hw/riscv/riscv_hart.h"
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							|  |  |  | #include "hw/riscv/sifive_plic.h"
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							|  |  |  | #include "hw/riscv/sifive_clint.h"
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							|  |  |  | #include "hw/riscv/sifive_uart.h"
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							|  |  |  | #include "hw/riscv/sifive_u.h"
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										 |  |  | #include "hw/riscv/boot.h"
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										 |  |  | #include "chardev/char.h"
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										 |  |  | #include "net/eth.h"
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										 |  |  | #include "sysemu/arch_init.h"
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							|  |  |  | #include "sysemu/device_tree.h"
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										 |  |  | #include "sysemu/sysemu.h"
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										 |  |  | #include "exec/address-spaces.h"
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							|  |  |  | 
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										 |  |  | #include <libfdt.h>
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							|  |  |  | 
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										 |  |  | #define BIOS_FILENAME "opensbi-riscv64-sifive_u-fw_jump.bin"
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							|  |  |  | 
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										 |  |  | static const struct MemmapEntry { | 
					
						
							|  |  |  |     hwaddr base; | 
					
						
							|  |  |  |     hwaddr size; | 
					
						
							|  |  |  | } sifive_u_memmap[] = { | 
					
						
							|  |  |  |     [SIFIVE_U_DEBUG] =    {        0x0,      0x100 }, | 
					
						
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										 |  |  |     [SIFIVE_U_MROM] =     {     0x1000,    0x11000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_CLINT] =    {  0x2000000,    0x10000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_L2LIM] =    {  0x8000000,  0x2000000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_PLIC] =     {  0xc000000,  0x4000000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_PRCI] =     { 0x10000000,     0x1000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_UART0] =    { 0x10010000,     0x1000 }, | 
					
						
							|  |  |  |     [SIFIVE_U_UART1] =    { 0x10011000,     0x1000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_OTP] =      { 0x10070000,     0x1000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_FLASH0] =   { 0x20000000, 0x10000000 }, | 
					
						
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										 |  |  |     [SIFIVE_U_DRAM] =     { 0x80000000,        0x0 }, | 
					
						
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										 |  |  |     [SIFIVE_U_GEM] =      { 0x10090000,     0x2000 }, | 
					
						
							|  |  |  |     [SIFIVE_U_GEM_MGMT] = { 0x100a0000,     0x1000 }, | 
					
						
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										 |  |  | }; | 
					
						
							|  |  |  | 
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										 |  |  | #define OTP_SERIAL          1
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										 |  |  | #define GEM_REVISION        0x10070109
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										 |  |  | static void create_fdt(SiFiveUState *s, const struct MemmapEntry *memmap, | 
					
						
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										 |  |  |     uint64_t mem_size, const char *cmdline) | 
					
						
							|  |  |  | { | 
					
						
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										 |  |  |     MachineState *ms = MACHINE(qdev_get_machine()); | 
					
						
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										 |  |  |     void *fdt; | 
					
						
							|  |  |  |     int cpu; | 
					
						
							|  |  |  |     uint32_t *cells; | 
					
						
							|  |  |  |     char *nodename; | 
					
						
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										 |  |  |     char ethclk_names[] = "pclk\0hclk"; | 
					
						
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										 |  |  |     uint32_t plic_phandle, prci_phandle, phandle = 1; | 
					
						
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										 |  |  |     uint32_t hfclk_phandle, rtcclk_phandle, phy_phandle; | 
					
						
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										 |  |  | 
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							|  |  |  |     fdt = s->fdt = create_device_tree(&s->fdt_size); | 
					
						
							|  |  |  |     if (!fdt) { | 
					
						
							|  |  |  |         error_report("create_device_tree() failed"); | 
					
						
							|  |  |  |         exit(1); | 
					
						
							|  |  |  |     } | 
					
						
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										 |  |  |     qemu_fdt_setprop_string(fdt, "/", "model", "SiFive HiFive Unleashed A00"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, "/", "compatible", | 
					
						
							|  |  |  |                             "sifive,hifive-unleashed-a00"); | 
					
						
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										 |  |  |     qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); | 
					
						
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							|  |  |  |     qemu_fdt_add_subnode(fdt, "/soc"); | 
					
						
							|  |  |  |     qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); | 
					
						
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										 |  |  |     qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus"); | 
					
						
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										 |  |  |     qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2); | 
					
						
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										 |  |  |     hfclk_phandle = phandle++; | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/hfclk"); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phandle", hfclk_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "hfclk"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", | 
					
						
							|  |  |  |         SIFIVE_U_HFCLK_FREQ); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
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							|  |  |  |     rtcclk_phandle = phandle++; | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/rtcclk"); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phandle", rtcclk_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "rtcclk"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", | 
					
						
							|  |  |  |         SIFIVE_U_RTCCLK_FREQ); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
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										 |  |  |     nodename = g_strdup_printf("/memory@%lx", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_DRAM].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         memmap[SIFIVE_U_DRAM].base >> 32, memmap[SIFIVE_U_DRAM].base, | 
					
						
							|  |  |  |         mem_size >> 32, mem_size); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
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							|  |  |  |     qemu_fdt_add_subnode(fdt, "/cpus"); | 
					
						
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										 |  |  |     qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", | 
					
						
							|  |  |  |         SIFIVE_CLINT_TIMEBASE_FREQ); | 
					
						
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										 |  |  |     qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); | 
					
						
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										 |  |  |     for (cpu = ms->smp.cpus - 1; cpu >= 0; cpu--) { | 
					
						
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										 |  |  |         int cpu_phandle = phandle++; | 
					
						
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										 |  |  |         nodename = g_strdup_printf("/cpus/cpu@%d", cpu); | 
					
						
							|  |  |  |         char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); | 
					
						
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										 |  |  |         char *isa; | 
					
						
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										 |  |  |         qemu_fdt_add_subnode(fdt, nodename); | 
					
						
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										 |  |  |         /* cpu 0 is the management hart that does not have mmu */ | 
					
						
							|  |  |  |         if (cpu != 0) { | 
					
						
							|  |  |  |             qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48"); | 
					
						
							|  |  |  |             isa = riscv_isa_string(&s->soc.u_cpus.harts[cpu - 1]); | 
					
						
							|  |  |  |         } else { | 
					
						
							|  |  |  |             isa = riscv_isa_string(&s->soc.e_cpus.harts[0]); | 
					
						
							|  |  |  |         } | 
					
						
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										 |  |  |         qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", isa); | 
					
						
							|  |  |  |         qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv"); | 
					
						
							|  |  |  |         qemu_fdt_setprop_string(fdt, nodename, "status", "okay"); | 
					
						
							|  |  |  |         qemu_fdt_setprop_cell(fdt, nodename, "reg", cpu); | 
					
						
							|  |  |  |         qemu_fdt_setprop_string(fdt, nodename, "device_type", "cpu"); | 
					
						
							|  |  |  |         qemu_fdt_add_subnode(fdt, intc); | 
					
						
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										 |  |  |         qemu_fdt_setprop_cell(fdt, intc, "phandle", cpu_phandle); | 
					
						
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										 |  |  |         qemu_fdt_setprop_string(fdt, intc, "compatible", "riscv,cpu-intc"); | 
					
						
							|  |  |  |         qemu_fdt_setprop(fdt, intc, "interrupt-controller", NULL, 0); | 
					
						
							|  |  |  |         qemu_fdt_setprop_cell(fdt, intc, "#interrupt-cells", 1); | 
					
						
							|  |  |  |         g_free(isa); | 
					
						
							|  |  |  |         g_free(intc); | 
					
						
							|  |  |  |         g_free(nodename); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | 
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										 |  |  |     cells =  g_new0(uint32_t, ms->smp.cpus * 4); | 
					
						
							|  |  |  |     for (cpu = 0; cpu < ms->smp.cpus; cpu++) { | 
					
						
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										 |  |  |         nodename = | 
					
						
							|  |  |  |             g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); | 
					
						
							|  |  |  |         uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); | 
					
						
							|  |  |  |         cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); | 
					
						
							|  |  |  |         cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); | 
					
						
							|  |  |  |         cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); | 
					
						
							|  |  |  |         cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); | 
					
						
							|  |  |  |         g_free(nodename); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/soc/clint@%lx", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_CLINT].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,clint0"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_CLINT].base, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_CLINT].size); | 
					
						
							|  |  |  |     qemu_fdt_setprop(fdt, nodename, "interrupts-extended", | 
					
						
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										 |  |  |         cells, ms->smp.cpus * sizeof(uint32_t) * 4); | 
					
						
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										 |  |  |     g_free(cells); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
							|  |  |  | 
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										 |  |  |     prci_phandle = phandle++; | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/soc/clock-controller@%lx", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_PRCI].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phandle", prci_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x1); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "clocks", | 
					
						
							|  |  |  |         hfclk_phandle, rtcclk_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_PRCI].base, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_PRCI].size); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", | 
					
						
							|  |  |  |         "sifive,fu540-c000-prci"); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:24 -07:00
										 |  |  |     plic_phandle = phandle++; | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:06 -07:00
										 |  |  |     cells =  g_new0(uint32_t, ms->smp.cpus * 4 - 2); | 
					
						
							|  |  |  |     for (cpu = 0; cpu < ms->smp.cpus; cpu++) { | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         nodename = | 
					
						
							|  |  |  |             g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); | 
					
						
							|  |  |  |         uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:06 -07:00
										 |  |  |         /* cpu 0 is the management hart that does not have S-mode */ | 
					
						
							|  |  |  |         if (cpu == 0) { | 
					
						
							|  |  |  |             cells[0] = cpu_to_be32(intc_phandle); | 
					
						
							|  |  |  |             cells[1] = cpu_to_be32(IRQ_M_EXT); | 
					
						
							|  |  |  |         } else { | 
					
						
							|  |  |  |             cells[cpu * 4 - 2] = cpu_to_be32(intc_phandle); | 
					
						
							|  |  |  |             cells[cpu * 4 - 1] = cpu_to_be32(IRQ_M_EXT); | 
					
						
							|  |  |  |             cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); | 
					
						
							|  |  |  |             cells[cpu * 4 + 1] = cpu_to_be32(IRQ_S_EXT); | 
					
						
							|  |  |  |         } | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         g_free(nodename); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/soc/interrupt-controller@%lx", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_PLIC].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 1); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv,plic0"); | 
					
						
							|  |  |  |     qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); | 
					
						
							|  |  |  |     qemu_fdt_setprop(fdt, nodename, "interrupts-extended", | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:06 -07:00
										 |  |  |         cells, (ms->smp.cpus * 4 - 2) * sizeof(uint32_t)); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_PLIC].base, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_PLIC].size); | 
					
						
							| 
									
										
										
										
											2018-05-11 10:24:00 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "riscv,ndev", 0x35); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:51 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phandle", plic_phandle); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     plic_phandle = qemu_fdt_get_phandle(fdt, nodename); | 
					
						
							|  |  |  |     g_free(cells); | 
					
						
							|  |  |  |     g_free(nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |     phy_phandle = phandle++; | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     nodename = g_strdup_printf("/soc/ethernet@%lx", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_GEM].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", | 
					
						
							|  |  |  |         "sifive,fu540-c000-gem"); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_GEM].base, | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |         0x0, memmap[SIFIVE_U_GEM].size, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_GEM_MGMT].base, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_GEM_MGMT].size); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     qemu_fdt_setprop_string(fdt, nodename, "reg-names", "control"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "phy-mode", "gmii"); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phy-handle", phy_phandle); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:51 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_GEM_IRQ); | 
					
						
							| 
									
										
										
										
											2018-12-13 18:34:52 +00:00
										 |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "clocks", | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:11 -07:00
										 |  |  |         prci_phandle, PRCI_CLK_GEMGXLPLL, prci_phandle, PRCI_CLK_GEMGXLPLL); | 
					
						
							| 
									
										
										
										
											2019-07-19 06:40:45 -07:00
										 |  |  |     qemu_fdt_setprop(fdt, nodename, "clock-names", ethclk_names, | 
					
						
							| 
									
										
										
										
											2018-12-13 18:34:52 +00:00
										 |  |  |         sizeof(ethclk_names)); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |     qemu_fdt_setprop(fdt, nodename, "local-mac-address", | 
					
						
							|  |  |  |         s->soc.gem.conf.macaddr.a, ETH_ALEN); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:51 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); | 
					
						
							| 
									
										
										
										
											2019-09-20 22:41:31 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, "/aliases"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, "/aliases", "ethernet0", nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     g_free(nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     nodename = g_strdup_printf("/soc/ethernet@%lx/ethernet-phy@0", | 
					
						
							|  |  |  |         (long)memmap[SIFIVE_U_GEM].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "phandle", phy_phandle); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:51 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "reg", 0x0); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     g_free(nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:13 -07:00
										 |  |  |     nodename = g_strdup_printf("/soc/serial@%lx", | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         (long)memmap[SIFIVE_U_UART0].base); | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, nodename); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "reg", | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_UART0].base, | 
					
						
							|  |  |  |         0x0, memmap[SIFIVE_U_UART0].size); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:11 -07:00
										 |  |  |     qemu_fdt_setprop_cells(fdt, nodename, "clocks", | 
					
						
							|  |  |  |         prci_phandle, PRCI_CLK_TLCLK); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:51 -07:00
										 |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); | 
					
						
							|  |  |  |     qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_UART0_IRQ); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							|  |  |  |     qemu_fdt_add_subnode(fdt, "/chosen"); | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename); | 
					
						
							| 
									
										
										
										
											2018-05-22 13:33:28 +12:00
										 |  |  |     if (cmdline) { | 
					
						
							|  |  |  |         qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); | 
					
						
							|  |  |  |     } | 
					
						
							| 
									
										
										
										
											2019-07-19 06:40:44 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  |     qemu_fdt_setprop_string(fdt, "/aliases", "serial0", nodename); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     g_free(nodename); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void riscv_sifive_u_init(MachineState *machine) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     const struct MemmapEntry *memmap = sifive_u_memmap; | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:14 -07:00
										 |  |  |     SiFiveUState *s = RISCV_U_MACHINE(machine); | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     MemoryRegion *system_memory = get_system_memory(); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     MemoryRegion *main_mem = g_new(MemoryRegion, 1); | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:11 -07:00
										 |  |  |     MemoryRegion *flash0 = g_new(MemoryRegion, 1); | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:18 -07:00
										 |  |  |     target_ulong start_addr = memmap[SIFIVE_U_DRAM].base; | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     int i; | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  |     /* Initialize SoC */ | 
					
						
							| 
									
										
										
										
											2018-07-16 15:30:32 -07:00
										 |  |  |     object_initialize_child(OBJECT(machine), "soc", &s->soc, | 
					
						
							|  |  |  |                             sizeof(s->soc), TYPE_RISCV_U_SOC, | 
					
						
							|  |  |  |                             &error_abort, NULL); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     object_property_set_bool(OBJECT(&s->soc), true, "realized", | 
					
						
							|  |  |  |                             &error_abort); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     /* register RAM */ | 
					
						
							|  |  |  |     memory_region_init_ram(main_mem, NULL, "riscv.sifive.u.ram", | 
					
						
							|  |  |  |                            machine->ram_size, &error_fatal); | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DRAM].base, | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  |                                 main_mem); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:11 -07:00
										 |  |  |     /* register QSPI0 Flash */ | 
					
						
							|  |  |  |     memory_region_init_ram(flash0, NULL, "riscv.sifive.u.flash0", | 
					
						
							|  |  |  |                            memmap[SIFIVE_U_FLASH0].size, &error_fatal); | 
					
						
							|  |  |  |     memory_region_add_subregion(system_memory, memmap[SIFIVE_U_FLASH0].base, | 
					
						
							|  |  |  |                                 flash0); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     /* create device tree */ | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:53 -07:00
										 |  |  |     create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-07-16 11:47:25 -07:00
										 |  |  |     riscv_find_and_load_firmware(machine, BIOS_FILENAME, | 
					
						
							|  |  |  |                                  memmap[SIFIVE_U_DRAM].base); | 
					
						
							| 
									
										
										
										
											2019-06-24 15:11:52 -07:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     if (machine->kernel_filename) { | 
					
						
							| 
									
										
										
										
											2019-11-19 06:21:09 +00:00
										 |  |  |         uint64_t kernel_entry = riscv_load_kernel(machine->kernel_filename, | 
					
						
							|  |  |  |                                                   NULL); | 
					
						
							| 
									
										
										
										
											2019-07-19 06:40:43 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  |         if (machine->initrd_filename) { | 
					
						
							|  |  |  |             hwaddr start; | 
					
						
							|  |  |  |             hwaddr end = riscv_load_initrd(machine->initrd_filename, | 
					
						
							|  |  |  |                                            machine->ram_size, kernel_entry, | 
					
						
							|  |  |  |                                            &start); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:53 -07:00
										 |  |  |             qemu_fdt_setprop_cell(s->fdt, "/chosen", | 
					
						
							| 
									
										
										
										
											2019-07-19 06:40:43 -07:00
										 |  |  |                                   "linux,initrd-start", start); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:19:53 -07:00
										 |  |  |             qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", | 
					
						
							| 
									
										
										
										
											2019-07-19 06:40:43 -07:00
										 |  |  |                                   end); | 
					
						
							|  |  |  |         } | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:18 -07:00
										 |  |  |     if (s->start_in_flash) { | 
					
						
							|  |  |  |         start_addr = memmap[SIFIVE_U_FLASH0].base; | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     /* reset vector */ | 
					
						
							|  |  |  |     uint32_t reset_vec[8] = { | 
					
						
							|  |  |  |         0x00000297,                    /* 1:  auipc  t0, %pcrel_hi(dtb) */ | 
					
						
							|  |  |  |         0x02028593,                    /*     addi   a1, t0, %pcrel_lo(1b) */ | 
					
						
							|  |  |  |         0xf1402573,                    /*     csrr   a0, mhartid  */ | 
					
						
							|  |  |  | #if defined(TARGET_RISCV32)
 | 
					
						
							|  |  |  |         0x0182a283,                    /*     lw     t0, 24(t0) */ | 
					
						
							|  |  |  | #elif defined(TARGET_RISCV64)
 | 
					
						
							|  |  |  |         0x0182b283,                    /*     ld     t0, 24(t0) */ | 
					
						
							|  |  |  | #endif
 | 
					
						
							|  |  |  |         0x00028067,                    /*     jr     t0 */ | 
					
						
							|  |  |  |         0x00000000, | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:18 -07:00
										 |  |  |         start_addr,                    /* start: .dword */ | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         0x00000000, | 
					
						
							|  |  |  |                                        /* dtb: */ | 
					
						
							|  |  |  |     }; | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     /* copy in the reset vector in little_endian byte order */ | 
					
						
							|  |  |  |     for (i = 0; i < sizeof(reset_vec) >> 2; i++) { | 
					
						
							|  |  |  |         reset_vec[i] = cpu_to_le32(reset_vec[i]); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), | 
					
						
							|  |  |  |                           memmap[SIFIVE_U_MROM].base, &address_space_memory); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							|  |  |  |     /* copy in the device tree */ | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     if (fdt_pack(s->fdt) || fdt_totalsize(s->fdt) > | 
					
						
							|  |  |  |             memmap[SIFIVE_U_MROM].size - sizeof(reset_vec)) { | 
					
						
							|  |  |  |         error_report("not enough space to store device-tree"); | 
					
						
							|  |  |  |         exit(1); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     qemu_fdt_dumpdtb(s->fdt, fdt_totalsize(s->fdt)); | 
					
						
							|  |  |  |     rom_add_blob_fixed_as("mrom.fdt", s->fdt, fdt_totalsize(s->fdt), | 
					
						
							|  |  |  |                           memmap[SIFIVE_U_MROM].base + sizeof(reset_vec), | 
					
						
							|  |  |  |                           &address_space_memory); | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void riscv_sifive_u_soc_init(Object *obj) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
											2019-05-19 04:54:23 +08:00
										 |  |  |     MachineState *ms = MACHINE(qdev_get_machine()); | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  |     SiFiveUSoCState *s = RISCV_U_SOC(obj); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:06 -07:00
										 |  |  |     object_initialize_child(obj, "e-cluster", &s->e_cluster, | 
					
						
							|  |  |  |                             sizeof(s->e_cluster), TYPE_CPU_CLUSTER, | 
					
						
							|  |  |  |                             &error_abort, NULL); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->e_cluster), "cluster-id", 0); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     object_initialize_child(OBJECT(&s->e_cluster), "e-cpus", | 
					
						
							|  |  |  |                             &s->e_cpus, sizeof(s->e_cpus), | 
					
						
							|  |  |  |                             TYPE_RISCV_HART_ARRAY, &error_abort, | 
					
						
							|  |  |  |                             NULL); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->e_cpus), "num-harts", 1); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->e_cpus), "hartid-base", 0); | 
					
						
							|  |  |  |     qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", SIFIVE_E_CPU); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     object_initialize_child(obj, "u-cluster", &s->u_cluster, | 
					
						
							|  |  |  |                             sizeof(s->u_cluster), TYPE_CPU_CLUSTER, | 
					
						
							|  |  |  |                             &error_abort, NULL); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->u_cluster), "cluster-id", 1); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     object_initialize_child(OBJECT(&s->u_cluster), "u-cpus", | 
					
						
							|  |  |  |                             &s->u_cpus, sizeof(s->u_cpus), | 
					
						
							|  |  |  |                             TYPE_RISCV_HART_ARRAY, &error_abort, | 
					
						
							|  |  |  |                             NULL); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->u_cpus), "num-harts", ms->smp.cpus - 1); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->u_cpus), "hartid-base", 1); | 
					
						
							|  |  |  |     qdev_prop_set_string(DEVICE(&s->u_cpus), "cpu-type", SIFIVE_U_CPU); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:10 -07:00
										 |  |  |     sysbus_init_child_obj(obj, "prci", &s->prci, sizeof(s->prci), | 
					
						
							|  |  |  |                           TYPE_SIFIVE_U_PRCI); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:16 -07:00
										 |  |  |     sysbus_init_child_obj(obj, "otp", &s->otp, sizeof(s->otp), | 
					
						
							|  |  |  |                           TYPE_SIFIVE_U_OTP); | 
					
						
							|  |  |  |     qdev_prop_set_uint32(DEVICE(&s->otp), "serial", OTP_SERIAL); | 
					
						
							| 
									
										
										
										
											2018-07-16 15:30:32 -07:00
										 |  |  |     sysbus_init_child_obj(obj, "gem", &s->gem, sizeof(s->gem), | 
					
						
							|  |  |  |                           TYPE_CADENCE_GEM); | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:18 -07:00
										 |  |  | static bool sifive_u_get_start_in_flash(Object *obj, Error **errp) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     SiFiveUState *s = RISCV_U_MACHINE(obj); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     return s->start_in_flash; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void sifive_u_set_start_in_flash(Object *obj, bool value, Error **errp) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     SiFiveUState *s = RISCV_U_MACHINE(obj); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     s->start_in_flash = value; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:14 -07:00
										 |  |  | static void riscv_sifive_u_machine_instance_init(Object *obj) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:18 -07:00
										 |  |  |     SiFiveUState *s = RISCV_U_MACHINE(obj); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     s->start_in_flash = false; | 
					
						
							|  |  |  |     object_property_add_bool(obj, "start-in-flash", sifive_u_get_start_in_flash, | 
					
						
							|  |  |  |                              sifive_u_set_start_in_flash, NULL); | 
					
						
							|  |  |  |     object_property_set_description(obj, "start-in-flash", | 
					
						
							|  |  |  |                                     "Set on to tell QEMU's ROM to jump to " \ | 
					
						
							|  |  |  |                                     "flash. Otherwise QEMU will jump to DRAM", | 
					
						
							|  |  |  |                                     NULL); | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:14 -07:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  | static void riscv_sifive_u_soc_realize(DeviceState *dev, Error **errp) | 
					
						
							|  |  |  | { | 
					
						
							| 
									
										
										
										
											2019-05-19 04:54:23 +08:00
										 |  |  |     MachineState *ms = MACHINE(qdev_get_machine()); | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  |     SiFiveUSoCState *s = RISCV_U_SOC(dev); | 
					
						
							|  |  |  |     const struct MemmapEntry *memmap = sifive_u_memmap; | 
					
						
							|  |  |  |     MemoryRegion *system_memory = get_system_memory(); | 
					
						
							|  |  |  |     MemoryRegion *mask_rom = g_new(MemoryRegion, 1); | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:07 -07:00
										 |  |  |     MemoryRegion *l2lim_mem = g_new(MemoryRegion, 1); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     qemu_irq plic_gpios[SIFIVE_U_PLIC_NUM_SOURCES]; | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |     char *plic_hart_config; | 
					
						
							|  |  |  |     size_t plic_hart_config_len; | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     int i; | 
					
						
							|  |  |  |     Error *err = NULL; | 
					
						
							|  |  |  |     NICInfo *nd = &nd_table[0]; | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:06 -07:00
										 |  |  |     object_property_set_bool(OBJECT(&s->e_cpus), true, "realized", | 
					
						
							|  |  |  |                              &error_abort); | 
					
						
							|  |  |  |     object_property_set_bool(OBJECT(&s->u_cpus), true, "realized", | 
					
						
							|  |  |  |                              &error_abort); | 
					
						
							|  |  |  |     /*
 | 
					
						
							|  |  |  |      * The cluster must be realized after the RISC-V hart array container, | 
					
						
							|  |  |  |      * as the container's CPU object is only created on realize, and the | 
					
						
							|  |  |  |      * CPU must exist and have been parented into the cluster before the | 
					
						
							|  |  |  |      * cluster is realized. | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     object_property_set_bool(OBJECT(&s->e_cluster), true, "realized", | 
					
						
							|  |  |  |                              &error_abort); | 
					
						
							|  |  |  |     object_property_set_bool(OBJECT(&s->u_cluster), true, "realized", | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  |                              &error_abort); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     /* boot rom */ | 
					
						
							|  |  |  |     memory_region_init_rom(mask_rom, NULL, "riscv.sifive.u.mrom", | 
					
						
							|  |  |  |                            memmap[SIFIVE_U_MROM].size, &error_fatal); | 
					
						
							|  |  |  |     memory_region_add_subregion(system_memory, memmap[SIFIVE_U_MROM].base, | 
					
						
							|  |  |  |                                 mask_rom); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:07 -07:00
										 |  |  |     /*
 | 
					
						
							|  |  |  |      * Add L2-LIM at reset size. | 
					
						
							|  |  |  |      * This should be reduced in size as the L2 Cache Controller WayEnable | 
					
						
							|  |  |  |      * register is incremented. Unfortunately I don't see a nice (or any) way | 
					
						
							|  |  |  |      * to handle reducing or blocking out the L2 LIM while still allowing it | 
					
						
							|  |  |  |      * be re returned to all enabled after a reset. For the time being, just | 
					
						
							|  |  |  |      * leave it enabled all the time. This won't break anything, but will be | 
					
						
							|  |  |  |      * too generous to misbehaving guests. | 
					
						
							|  |  |  |      */ | 
					
						
							|  |  |  |     memory_region_init_ram(l2lim_mem, NULL, "riscv.sifive.u.l2lim", | 
					
						
							|  |  |  |                            memmap[SIFIVE_U_L2LIM].size, &error_fatal); | 
					
						
							|  |  |  |     memory_region_add_subregion(system_memory, memmap[SIFIVE_U_L2LIM].base, | 
					
						
							|  |  |  |                                 l2lim_mem); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |     /* create PLIC hart topology configuration string */ | 
					
						
							| 
									
										
										
										
											2019-05-19 04:54:23 +08:00
										 |  |  |     plic_hart_config_len = (strlen(SIFIVE_U_PLIC_HART_CONFIG) + 1) * | 
					
						
							|  |  |  |                            ms->smp.cpus; | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |     plic_hart_config = g_malloc0(plic_hart_config_len); | 
					
						
							| 
									
										
										
										
											2019-05-19 04:54:23 +08:00
										 |  |  |     for (i = 0; i < ms->smp.cpus; i++) { | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |         if (i != 0) { | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:07 -07:00
										 |  |  |             strncat(plic_hart_config, "," SIFIVE_U_PLIC_HART_CONFIG, | 
					
						
							|  |  |  |                     plic_hart_config_len); | 
					
						
							|  |  |  |         } else { | 
					
						
							|  |  |  |             strncat(plic_hart_config, "M", plic_hart_config_len); | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |         } | 
					
						
							|  |  |  |         plic_hart_config_len -= (strlen(SIFIVE_U_PLIC_HART_CONFIG) + 1); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     /* MMIO */ | 
					
						
							|  |  |  |     s->plic = sifive_plic_create(memmap[SIFIVE_U_PLIC].base, | 
					
						
							| 
									
										
										
										
											2019-05-17 08:51:25 -07:00
										 |  |  |         plic_hart_config, | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         SIFIVE_U_PLIC_NUM_SOURCES, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_NUM_PRIORITIES, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_PRIORITY_BASE, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_PENDING_BASE, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_ENABLE_BASE, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_ENABLE_STRIDE, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_CONTEXT_BASE, | 
					
						
							|  |  |  |         SIFIVE_U_PLIC_CONTEXT_STRIDE, | 
					
						
							|  |  |  |         memmap[SIFIVE_U_PLIC].size); | 
					
						
							| 
									
										
										
										
											2019-12-10 15:14:37 +08:00
										 |  |  |     g_free(plic_hart_config); | 
					
						
							| 
									
										
										
										
											2018-03-04 11:52:13 +13:00
										 |  |  |     sifive_uart_create(system_memory, memmap[SIFIVE_U_UART0].base, | 
					
						
							| 
									
										
										
										
											2018-04-26 13:54:12 -07:00
										 |  |  |         serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART0_IRQ)); | 
					
						
							| 
									
										
										
										
											2018-12-14 00:19:03 +00:00
										 |  |  |     sifive_uart_create(system_memory, memmap[SIFIVE_U_UART1].base, | 
					
						
							|  |  |  |         serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART1_IRQ)); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |     sifive_clint_create(memmap[SIFIVE_U_CLINT].base, | 
					
						
							| 
									
										
										
										
											2019-05-19 04:54:23 +08:00
										 |  |  |         memmap[SIFIVE_U_CLINT].size, ms->smp.cpus, | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  |         SIFIVE_SIP_BASE, SIFIVE_TIMECMP_BASE, SIFIVE_TIME_BASE); | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:10 -07:00
										 |  |  |     object_property_set_bool(OBJECT(&s->prci), true, "realized", &err); | 
					
						
							|  |  |  |     sysbus_mmio_map(SYS_BUS_DEVICE(&s->prci), 0, memmap[SIFIVE_U_PRCI].base); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:16 -07:00
										 |  |  |     object_property_set_bool(OBJECT(&s->otp), true, "realized", &err); | 
					
						
							|  |  |  |     sysbus_mmio_map(SYS_BUS_DEVICE(&s->otp), 0, memmap[SIFIVE_U_OTP].base); | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-04-26 13:59:08 -07:00
										 |  |  |     for (i = 0; i < SIFIVE_U_PLIC_NUM_SOURCES; i++) { | 
					
						
							|  |  |  |         plic_gpios[i] = qdev_get_gpio_in(DEVICE(s->plic), i); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     if (nd->used) { | 
					
						
							|  |  |  |         qemu_check_nic_model(nd, TYPE_CADENCE_GEM); | 
					
						
							|  |  |  |         qdev_set_nic_properties(DEVICE(&s->gem), nd); | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     object_property_set_int(OBJECT(&s->gem), GEM_REVISION, "revision", | 
					
						
							|  |  |  |                             &error_abort); | 
					
						
							|  |  |  |     object_property_set_bool(OBJECT(&s->gem), true, "realized", &err); | 
					
						
							|  |  |  |     if (err) { | 
					
						
							|  |  |  |         error_propagate(errp, err); | 
					
						
							|  |  |  |         return; | 
					
						
							|  |  |  |     } | 
					
						
							|  |  |  |     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem), 0, memmap[SIFIVE_U_GEM].base); | 
					
						
							|  |  |  |     sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem), 0, | 
					
						
							|  |  |  |                        plic_gpios[SIFIVE_U_GEM_IRQ]); | 
					
						
							| 
									
										
										
										
											2019-09-06 09:20:17 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  |     create_unimplemented_device("riscv.sifive.u.gem-mgmt", | 
					
						
							|  |  |  |         memmap[SIFIVE_U_GEM_MGMT].base, memmap[SIFIVE_U_GEM_MGMT].size); | 
					
						
							| 
									
										
										
										
											2018-03-03 01:31:14 +13:00
										 |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							| 
									
										
										
										
											2018-04-26 11:15:24 -07:00
										 |  |  | static void riscv_sifive_u_soc_class_init(ObjectClass *oc, void *data) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     DeviceClass *dc = DEVICE_CLASS(oc); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     dc->realize = riscv_sifive_u_soc_realize; | 
					
						
							|  |  |  |     /* Reason: Uses serial_hds in realize function, thus can't be used twice */ | 
					
						
							|  |  |  |     dc->user_creatable = false; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static const TypeInfo riscv_sifive_u_soc_type_info = { | 
					
						
							|  |  |  |     .name = TYPE_RISCV_U_SOC, | 
					
						
							|  |  |  |     .parent = TYPE_DEVICE, | 
					
						
							|  |  |  |     .instance_size = sizeof(SiFiveUSoCState), | 
					
						
							|  |  |  |     .instance_init = riscv_sifive_u_soc_init, | 
					
						
							|  |  |  |     .class_init = riscv_sifive_u_soc_class_init, | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void riscv_sifive_u_soc_register_types(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     type_register_static(&riscv_sifive_u_soc_type_info); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | type_init(riscv_sifive_u_soc_register_types) | 
					
						
							| 
									
										
										
										
											2019-10-08 16:32:14 -07:00
										 |  |  | 
 | 
					
						
							|  |  |  | static void riscv_sifive_u_machine_class_init(ObjectClass *oc, void *data) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     MachineClass *mc = MACHINE_CLASS(oc); | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  |     mc->desc = "RISC-V Board compatible with SiFive U SDK"; | 
					
						
							|  |  |  |     mc->init = riscv_sifive_u_init; | 
					
						
							|  |  |  |     mc->max_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + SIFIVE_U_COMPUTE_CPU_COUNT; | 
					
						
							|  |  |  |     mc->min_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + 1; | 
					
						
							|  |  |  |     mc->default_cpus = mc->min_cpus; | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static const TypeInfo riscv_sifive_u_machine_typeinfo = { | 
					
						
							|  |  |  |     .name       = MACHINE_TYPE_NAME("sifive_u"), | 
					
						
							|  |  |  |     .parent     = TYPE_MACHINE, | 
					
						
							|  |  |  |     .class_init = riscv_sifive_u_machine_class_init, | 
					
						
							|  |  |  |     .instance_init = riscv_sifive_u_machine_instance_init, | 
					
						
							|  |  |  |     .instance_size = sizeof(SiFiveUState), | 
					
						
							|  |  |  | }; | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | static void riscv_sifive_u_machine_init_register_types(void) | 
					
						
							|  |  |  | { | 
					
						
							|  |  |  |     type_register_static(&riscv_sifive_u_machine_typeinfo); | 
					
						
							|  |  |  | } | 
					
						
							|  |  |  | 
 | 
					
						
							|  |  |  | type_init(riscv_sifive_u_machine_init_register_types) |