1 /* 2 * QEMU RISC-V Board Compatible with SiFive Freedom U SDK 3 * 4 * Copyright (c) 2016-2017 Sagar Karandikar, sagark@eecs.berkeley.edu 5 * Copyright (c) 2017 SiFive, Inc. 6 * Copyright (c) 2019 Bin Meng <bmeng.cn@gmail.com> 7 * 8 * Provides a board compatible with the SiFive Freedom U SDK: 9 * 10 * 0) UART 11 * 1) CLINT (Core Level Interruptor) 12 * 2) PLIC (Platform Level Interrupt Controller) 13 * 3) PRCI (Power, Reset, Clock, Interrupt) 14 * 4) GPIO (General Purpose Input/Output Controller) 15 * 5) OTP (One-Time Programmable) memory with stored serial number 16 * 6) GEM (Gigabit Ethernet Controller) and management block 17 * 7) DMA (Direct Memory Access Controller) 18 * 8) SPI0 connected to an SPI flash 19 * 9) SPI2 connected to an SD card 20 * 10) PWM0 and PWM1 21 * 22 * This board currently generates devicetree dynamically that indicates at least 23 * two harts and up to five harts. 24 * 25 * This program is free software; you can redistribute it and/or modify it 26 * under the terms and conditions of the GNU General Public License, 27 * version 2 or later, as published by the Free Software Foundation. 28 * 29 * This program is distributed in the hope it will be useful, but WITHOUT 30 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 31 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 32 * more details. 33 * 34 * You should have received a copy of the GNU General Public License along with 35 * this program. If not, see <http://www.gnu.org/licenses/>. 36 */ 37 38 #include "qemu/osdep.h" 39 #include "qemu/error-report.h" 40 #include "qapi/error.h" 41 #include "qapi/visitor.h" 42 #include "hw/boards.h" 43 #include "hw/irq.h" 44 #include "hw/loader.h" 45 #include "hw/sysbus.h" 46 #include "hw/char/serial.h" 47 #include "hw/cpu/cluster.h" 48 #include "hw/misc/unimp.h" 49 #include "hw/sd/sd.h" 50 #include "hw/ssi/ssi.h" 51 #include "target/riscv/cpu.h" 52 #include "hw/riscv/riscv_hart.h" 53 #include "hw/riscv/sifive_u.h" 54 #include "hw/riscv/boot.h" 55 #include "hw/char/sifive_uart.h" 56 #include "hw/intc/riscv_aclint.h" 57 #include "hw/intc/sifive_plic.h" 58 #include "chardev/char.h" 59 #include "net/eth.h" 60 #include "sysemu/device_tree.h" 61 #include "sysemu/runstate.h" 62 #include "sysemu/sysemu.h" 63 64 #include <libfdt.h> 65 66 /* CLINT timebase frequency */ 67 #define CLINT_TIMEBASE_FREQ 1000000 68 69 static const MemMapEntry sifive_u_memmap[] = { 70 [SIFIVE_U_DEV_DEBUG] = { 0x0, 0x100 }, 71 [SIFIVE_U_DEV_MROM] = { 0x1000, 0xf000 }, 72 [SIFIVE_U_DEV_CLINT] = { 0x2000000, 0x10000 }, 73 [SIFIVE_U_DEV_L2CC] = { 0x2010000, 0x1000 }, 74 [SIFIVE_U_DEV_PDMA] = { 0x3000000, 0x100000 }, 75 [SIFIVE_U_DEV_L2LIM] = { 0x8000000, 0x2000000 }, 76 [SIFIVE_U_DEV_PLIC] = { 0xc000000, 0x4000000 }, 77 [SIFIVE_U_DEV_PRCI] = { 0x10000000, 0x1000 }, 78 [SIFIVE_U_DEV_UART0] = { 0x10010000, 0x1000 }, 79 [SIFIVE_U_DEV_UART1] = { 0x10011000, 0x1000 }, 80 [SIFIVE_U_DEV_PWM0] = { 0x10020000, 0x1000 }, 81 [SIFIVE_U_DEV_PWM1] = { 0x10021000, 0x1000 }, 82 [SIFIVE_U_DEV_QSPI0] = { 0x10040000, 0x1000 }, 83 [SIFIVE_U_DEV_QSPI2] = { 0x10050000, 0x1000 }, 84 [SIFIVE_U_DEV_GPIO] = { 0x10060000, 0x1000 }, 85 [SIFIVE_U_DEV_OTP] = { 0x10070000, 0x1000 }, 86 [SIFIVE_U_DEV_GEM] = { 0x10090000, 0x2000 }, 87 [SIFIVE_U_DEV_GEM_MGMT] = { 0x100a0000, 0x1000 }, 88 [SIFIVE_U_DEV_DMC] = { 0x100b0000, 0x10000 }, 89 [SIFIVE_U_DEV_FLASH0] = { 0x20000000, 0x10000000 }, 90 [SIFIVE_U_DEV_DRAM] = { 0x80000000, 0x0 }, 91 }; 92 93 #define OTP_SERIAL 1 94 #define GEM_REVISION 0x10070109 95 96 static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap, 97 uint64_t mem_size, const char *cmdline, bool is_32_bit) 98 { 99 MachineState *ms = MACHINE(qdev_get_machine()); 100 void *fdt; 101 int cpu; 102 uint32_t *cells; 103 char *nodename; 104 uint32_t plic_phandle, prci_phandle, gpio_phandle, phandle = 1; 105 uint32_t hfclk_phandle, rtcclk_phandle, phy_phandle; 106 static const char * const ethclk_names[2] = { "pclk", "hclk" }; 107 static const char * const clint_compat[2] = { 108 "sifive,clint0", "riscv,clint0" 109 }; 110 static const char * const plic_compat[2] = { 111 "sifive,plic-1.0.0", "riscv,plic0" 112 }; 113 114 if (ms->dtb) { 115 fdt = s->fdt = load_device_tree(ms->dtb, &s->fdt_size); 116 if (!fdt) { 117 error_report("load_device_tree() failed"); 118 exit(1); 119 } 120 goto update_bootargs; 121 } else { 122 fdt = s->fdt = create_device_tree(&s->fdt_size); 123 if (!fdt) { 124 error_report("create_device_tree() failed"); 125 exit(1); 126 } 127 } 128 129 qemu_fdt_setprop_string(fdt, "/", "model", "SiFive HiFive Unleashed A00"); 130 qemu_fdt_setprop_string(fdt, "/", "compatible", 131 "sifive,hifive-unleashed-a00"); 132 qemu_fdt_setprop_cell(fdt, "/", "#size-cells", 0x2); 133 qemu_fdt_setprop_cell(fdt, "/", "#address-cells", 0x2); 134 135 qemu_fdt_add_subnode(fdt, "/soc"); 136 qemu_fdt_setprop(fdt, "/soc", "ranges", NULL, 0); 137 qemu_fdt_setprop_string(fdt, "/soc", "compatible", "simple-bus"); 138 qemu_fdt_setprop_cell(fdt, "/soc", "#size-cells", 0x2); 139 qemu_fdt_setprop_cell(fdt, "/soc", "#address-cells", 0x2); 140 141 hfclk_phandle = phandle++; 142 nodename = g_strdup_printf("/hfclk"); 143 qemu_fdt_add_subnode(fdt, nodename); 144 qemu_fdt_setprop_cell(fdt, nodename, "phandle", hfclk_phandle); 145 qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "hfclk"); 146 qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", 147 SIFIVE_U_HFCLK_FREQ); 148 qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); 149 qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); 150 g_free(nodename); 151 152 rtcclk_phandle = phandle++; 153 nodename = g_strdup_printf("/rtcclk"); 154 qemu_fdt_add_subnode(fdt, nodename); 155 qemu_fdt_setprop_cell(fdt, nodename, "phandle", rtcclk_phandle); 156 qemu_fdt_setprop_string(fdt, nodename, "clock-output-names", "rtcclk"); 157 qemu_fdt_setprop_cell(fdt, nodename, "clock-frequency", 158 SIFIVE_U_RTCCLK_FREQ); 159 qemu_fdt_setprop_string(fdt, nodename, "compatible", "fixed-clock"); 160 qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x0); 161 g_free(nodename); 162 163 nodename = g_strdup_printf("/memory@%lx", 164 (long)memmap[SIFIVE_U_DEV_DRAM].base); 165 qemu_fdt_add_subnode(fdt, nodename); 166 qemu_fdt_setprop_cells(fdt, nodename, "reg", 167 memmap[SIFIVE_U_DEV_DRAM].base >> 32, memmap[SIFIVE_U_DEV_DRAM].base, 168 mem_size >> 32, mem_size); 169 qemu_fdt_setprop_string(fdt, nodename, "device_type", "memory"); 170 g_free(nodename); 171 172 qemu_fdt_add_subnode(fdt, "/cpus"); 173 qemu_fdt_setprop_cell(fdt, "/cpus", "timebase-frequency", 174 CLINT_TIMEBASE_FREQ); 175 qemu_fdt_setprop_cell(fdt, "/cpus", "#size-cells", 0x0); 176 qemu_fdt_setprop_cell(fdt, "/cpus", "#address-cells", 0x1); 177 178 for (cpu = ms->smp.cpus - 1; cpu >= 0; cpu--) { 179 int cpu_phandle = phandle++; 180 nodename = g_strdup_printf("/cpus/cpu@%d", cpu); 181 char *intc = g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 182 char *isa; 183 qemu_fdt_add_subnode(fdt, nodename); 184 /* cpu 0 is the management hart that does not have mmu */ 185 if (cpu != 0) { 186 if (is_32_bit) { 187 qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv32"); 188 } else { 189 qemu_fdt_setprop_string(fdt, nodename, "mmu-type", "riscv,sv48"); 190 } 191 isa = riscv_isa_string(&s->soc.u_cpus.harts[cpu - 1]); 192 } else { 193 isa = riscv_isa_string(&s->soc.e_cpus.harts[0]); 194 } 195 qemu_fdt_setprop_string(fdt, nodename, "riscv,isa", isa); 196 qemu_fdt_setprop_string(fdt, nodename, "compatible", "riscv"); 197 qemu_fdt_setprop_string(fdt, nodename, "status", "okay"); 198 qemu_fdt_setprop_cell(fdt, nodename, "reg", cpu); 199 qemu_fdt_setprop_string(fdt, nodename, "device_type", "cpu"); 200 qemu_fdt_add_subnode(fdt, intc); 201 qemu_fdt_setprop_cell(fdt, intc, "phandle", cpu_phandle); 202 qemu_fdt_setprop_string(fdt, intc, "compatible", "riscv,cpu-intc"); 203 qemu_fdt_setprop(fdt, intc, "interrupt-controller", NULL, 0); 204 qemu_fdt_setprop_cell(fdt, intc, "#interrupt-cells", 1); 205 g_free(isa); 206 g_free(intc); 207 g_free(nodename); 208 } 209 210 cells = g_new0(uint32_t, ms->smp.cpus * 4); 211 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 212 nodename = 213 g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 214 uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); 215 cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); 216 cells[cpu * 4 + 1] = cpu_to_be32(IRQ_M_SOFT); 217 cells[cpu * 4 + 2] = cpu_to_be32(intc_phandle); 218 cells[cpu * 4 + 3] = cpu_to_be32(IRQ_M_TIMER); 219 g_free(nodename); 220 } 221 nodename = g_strdup_printf("/soc/clint@%lx", 222 (long)memmap[SIFIVE_U_DEV_CLINT].base); 223 qemu_fdt_add_subnode(fdt, nodename); 224 qemu_fdt_setprop_string_array(fdt, nodename, "compatible", 225 (char **)&clint_compat, ARRAY_SIZE(clint_compat)); 226 qemu_fdt_setprop_cells(fdt, nodename, "reg", 227 0x0, memmap[SIFIVE_U_DEV_CLINT].base, 228 0x0, memmap[SIFIVE_U_DEV_CLINT].size); 229 qemu_fdt_setprop(fdt, nodename, "interrupts-extended", 230 cells, ms->smp.cpus * sizeof(uint32_t) * 4); 231 g_free(cells); 232 g_free(nodename); 233 234 nodename = g_strdup_printf("/soc/otp@%lx", 235 (long)memmap[SIFIVE_U_DEV_OTP].base); 236 qemu_fdt_add_subnode(fdt, nodename); 237 qemu_fdt_setprop_cell(fdt, nodename, "fuse-count", SIFIVE_U_OTP_REG_SIZE); 238 qemu_fdt_setprop_cells(fdt, nodename, "reg", 239 0x0, memmap[SIFIVE_U_DEV_OTP].base, 240 0x0, memmap[SIFIVE_U_DEV_OTP].size); 241 qemu_fdt_setprop_string(fdt, nodename, "compatible", 242 "sifive,fu540-c000-otp"); 243 g_free(nodename); 244 245 prci_phandle = phandle++; 246 nodename = g_strdup_printf("/soc/clock-controller@%lx", 247 (long)memmap[SIFIVE_U_DEV_PRCI].base); 248 qemu_fdt_add_subnode(fdt, nodename); 249 qemu_fdt_setprop_cell(fdt, nodename, "phandle", prci_phandle); 250 qemu_fdt_setprop_cell(fdt, nodename, "#clock-cells", 0x1); 251 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 252 hfclk_phandle, rtcclk_phandle); 253 qemu_fdt_setprop_cells(fdt, nodename, "reg", 254 0x0, memmap[SIFIVE_U_DEV_PRCI].base, 255 0x0, memmap[SIFIVE_U_DEV_PRCI].size); 256 qemu_fdt_setprop_string(fdt, nodename, "compatible", 257 "sifive,fu540-c000-prci"); 258 g_free(nodename); 259 260 plic_phandle = phandle++; 261 cells = g_new0(uint32_t, ms->smp.cpus * 4 - 2); 262 for (cpu = 0; cpu < ms->smp.cpus; cpu++) { 263 nodename = 264 g_strdup_printf("/cpus/cpu@%d/interrupt-controller", cpu); 265 uint32_t intc_phandle = qemu_fdt_get_phandle(fdt, nodename); 266 /* cpu 0 is the management hart that does not have S-mode */ 267 if (cpu == 0) { 268 cells[0] = cpu_to_be32(intc_phandle); 269 cells[1] = cpu_to_be32(IRQ_M_EXT); 270 } else { 271 cells[cpu * 4 - 2] = cpu_to_be32(intc_phandle); 272 cells[cpu * 4 - 1] = cpu_to_be32(IRQ_M_EXT); 273 cells[cpu * 4 + 0] = cpu_to_be32(intc_phandle); 274 cells[cpu * 4 + 1] = cpu_to_be32(IRQ_S_EXT); 275 } 276 g_free(nodename); 277 } 278 nodename = g_strdup_printf("/soc/interrupt-controller@%lx", 279 (long)memmap[SIFIVE_U_DEV_PLIC].base); 280 qemu_fdt_add_subnode(fdt, nodename); 281 qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 1); 282 qemu_fdt_setprop_string_array(fdt, nodename, "compatible", 283 (char **)&plic_compat, ARRAY_SIZE(plic_compat)); 284 qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); 285 qemu_fdt_setprop(fdt, nodename, "interrupts-extended", 286 cells, (ms->smp.cpus * 4 - 2) * sizeof(uint32_t)); 287 qemu_fdt_setprop_cells(fdt, nodename, "reg", 288 0x0, memmap[SIFIVE_U_DEV_PLIC].base, 289 0x0, memmap[SIFIVE_U_DEV_PLIC].size); 290 qemu_fdt_setprop_cell(fdt, nodename, "riscv,ndev", 291 SIFIVE_U_PLIC_NUM_SOURCES - 1); 292 qemu_fdt_setprop_cell(fdt, nodename, "phandle", plic_phandle); 293 plic_phandle = qemu_fdt_get_phandle(fdt, nodename); 294 g_free(cells); 295 g_free(nodename); 296 297 gpio_phandle = phandle++; 298 nodename = g_strdup_printf("/soc/gpio@%lx", 299 (long)memmap[SIFIVE_U_DEV_GPIO].base); 300 qemu_fdt_add_subnode(fdt, nodename); 301 qemu_fdt_setprop_cell(fdt, nodename, "phandle", gpio_phandle); 302 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 303 prci_phandle, PRCI_CLK_TLCLK); 304 qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 2); 305 qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); 306 qemu_fdt_setprop_cell(fdt, nodename, "#gpio-cells", 2); 307 qemu_fdt_setprop(fdt, nodename, "gpio-controller", NULL, 0); 308 qemu_fdt_setprop_cells(fdt, nodename, "reg", 309 0x0, memmap[SIFIVE_U_DEV_GPIO].base, 310 0x0, memmap[SIFIVE_U_DEV_GPIO].size); 311 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", SIFIVE_U_GPIO_IRQ0, 312 SIFIVE_U_GPIO_IRQ1, SIFIVE_U_GPIO_IRQ2, SIFIVE_U_GPIO_IRQ3, 313 SIFIVE_U_GPIO_IRQ4, SIFIVE_U_GPIO_IRQ5, SIFIVE_U_GPIO_IRQ6, 314 SIFIVE_U_GPIO_IRQ7, SIFIVE_U_GPIO_IRQ8, SIFIVE_U_GPIO_IRQ9, 315 SIFIVE_U_GPIO_IRQ10, SIFIVE_U_GPIO_IRQ11, SIFIVE_U_GPIO_IRQ12, 316 SIFIVE_U_GPIO_IRQ13, SIFIVE_U_GPIO_IRQ14, SIFIVE_U_GPIO_IRQ15); 317 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 318 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,gpio0"); 319 g_free(nodename); 320 321 nodename = g_strdup_printf("/gpio-restart"); 322 qemu_fdt_add_subnode(fdt, nodename); 323 qemu_fdt_setprop_cells(fdt, nodename, "gpios", gpio_phandle, 10, 1); 324 qemu_fdt_setprop_string(fdt, nodename, "compatible", "gpio-restart"); 325 g_free(nodename); 326 327 nodename = g_strdup_printf("/soc/dma@%lx", 328 (long)memmap[SIFIVE_U_DEV_PDMA].base); 329 qemu_fdt_add_subnode(fdt, nodename); 330 qemu_fdt_setprop_cell(fdt, nodename, "#dma-cells", 1); 331 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 332 SIFIVE_U_PDMA_IRQ0, SIFIVE_U_PDMA_IRQ1, SIFIVE_U_PDMA_IRQ2, 333 SIFIVE_U_PDMA_IRQ3, SIFIVE_U_PDMA_IRQ4, SIFIVE_U_PDMA_IRQ5, 334 SIFIVE_U_PDMA_IRQ6, SIFIVE_U_PDMA_IRQ7); 335 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 336 qemu_fdt_setprop_cells(fdt, nodename, "reg", 337 0x0, memmap[SIFIVE_U_DEV_PDMA].base, 338 0x0, memmap[SIFIVE_U_DEV_PDMA].size); 339 qemu_fdt_setprop_string(fdt, nodename, "compatible", 340 "sifive,fu540-c000-pdma"); 341 g_free(nodename); 342 343 nodename = g_strdup_printf("/soc/cache-controller@%lx", 344 (long)memmap[SIFIVE_U_DEV_L2CC].base); 345 qemu_fdt_add_subnode(fdt, nodename); 346 qemu_fdt_setprop_cells(fdt, nodename, "reg", 347 0x0, memmap[SIFIVE_U_DEV_L2CC].base, 348 0x0, memmap[SIFIVE_U_DEV_L2CC].size); 349 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 350 SIFIVE_U_L2CC_IRQ0, SIFIVE_U_L2CC_IRQ1, SIFIVE_U_L2CC_IRQ2); 351 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 352 qemu_fdt_setprop(fdt, nodename, "cache-unified", NULL, 0); 353 qemu_fdt_setprop_cell(fdt, nodename, "cache-size", 2097152); 354 qemu_fdt_setprop_cell(fdt, nodename, "cache-sets", 1024); 355 qemu_fdt_setprop_cell(fdt, nodename, "cache-level", 2); 356 qemu_fdt_setprop_cell(fdt, nodename, "cache-block-size", 64); 357 qemu_fdt_setprop_string(fdt, nodename, "compatible", 358 "sifive,fu540-c000-ccache"); 359 g_free(nodename); 360 361 nodename = g_strdup_printf("/soc/spi@%lx", 362 (long)memmap[SIFIVE_U_DEV_QSPI2].base); 363 qemu_fdt_add_subnode(fdt, nodename); 364 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 365 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 366 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 367 prci_phandle, PRCI_CLK_TLCLK); 368 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_QSPI2_IRQ); 369 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 370 qemu_fdt_setprop_cells(fdt, nodename, "reg", 371 0x0, memmap[SIFIVE_U_DEV_QSPI2].base, 372 0x0, memmap[SIFIVE_U_DEV_QSPI2].size); 373 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,spi0"); 374 g_free(nodename); 375 376 nodename = g_strdup_printf("/soc/spi@%lx/mmc@0", 377 (long)memmap[SIFIVE_U_DEV_QSPI2].base); 378 qemu_fdt_add_subnode(fdt, nodename); 379 qemu_fdt_setprop(fdt, nodename, "disable-wp", NULL, 0); 380 qemu_fdt_setprop_cells(fdt, nodename, "voltage-ranges", 3300, 3300); 381 qemu_fdt_setprop_cell(fdt, nodename, "spi-max-frequency", 20000000); 382 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0); 383 qemu_fdt_setprop_string(fdt, nodename, "compatible", "mmc-spi-slot"); 384 g_free(nodename); 385 386 nodename = g_strdup_printf("/soc/spi@%lx", 387 (long)memmap[SIFIVE_U_DEV_QSPI0].base); 388 qemu_fdt_add_subnode(fdt, nodename); 389 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 390 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 391 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 392 prci_phandle, PRCI_CLK_TLCLK); 393 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_QSPI0_IRQ); 394 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 395 qemu_fdt_setprop_cells(fdt, nodename, "reg", 396 0x0, memmap[SIFIVE_U_DEV_QSPI0].base, 397 0x0, memmap[SIFIVE_U_DEV_QSPI0].size); 398 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,spi0"); 399 g_free(nodename); 400 401 nodename = g_strdup_printf("/soc/spi@%lx/flash@0", 402 (long)memmap[SIFIVE_U_DEV_QSPI0].base); 403 qemu_fdt_add_subnode(fdt, nodename); 404 qemu_fdt_setprop_cell(fdt, nodename, "spi-rx-bus-width", 4); 405 qemu_fdt_setprop_cell(fdt, nodename, "spi-tx-bus-width", 4); 406 qemu_fdt_setprop(fdt, nodename, "m25p,fast-read", NULL, 0); 407 qemu_fdt_setprop_cell(fdt, nodename, "spi-max-frequency", 50000000); 408 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0); 409 qemu_fdt_setprop_string(fdt, nodename, "compatible", "jedec,spi-nor"); 410 g_free(nodename); 411 412 phy_phandle = phandle++; 413 nodename = g_strdup_printf("/soc/ethernet@%lx", 414 (long)memmap[SIFIVE_U_DEV_GEM].base); 415 qemu_fdt_add_subnode(fdt, nodename); 416 qemu_fdt_setprop_string(fdt, nodename, "compatible", 417 "sifive,fu540-c000-gem"); 418 qemu_fdt_setprop_cells(fdt, nodename, "reg", 419 0x0, memmap[SIFIVE_U_DEV_GEM].base, 420 0x0, memmap[SIFIVE_U_DEV_GEM].size, 421 0x0, memmap[SIFIVE_U_DEV_GEM_MGMT].base, 422 0x0, memmap[SIFIVE_U_DEV_GEM_MGMT].size); 423 qemu_fdt_setprop_string(fdt, nodename, "reg-names", "control"); 424 qemu_fdt_setprop_string(fdt, nodename, "phy-mode", "gmii"); 425 qemu_fdt_setprop_cell(fdt, nodename, "phy-handle", phy_phandle); 426 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 427 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_GEM_IRQ); 428 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 429 prci_phandle, PRCI_CLK_GEMGXLPLL, prci_phandle, PRCI_CLK_GEMGXLPLL); 430 qemu_fdt_setprop_string_array(fdt, nodename, "clock-names", 431 (char **)ðclk_names, ARRAY_SIZE(ethclk_names)); 432 qemu_fdt_setprop(fdt, nodename, "local-mac-address", 433 s->soc.gem.conf.macaddr.a, ETH_ALEN); 434 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 435 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 436 437 qemu_fdt_add_subnode(fdt, "/aliases"); 438 qemu_fdt_setprop_string(fdt, "/aliases", "ethernet0", nodename); 439 440 g_free(nodename); 441 442 nodename = g_strdup_printf("/soc/ethernet@%lx/ethernet-phy@0", 443 (long)memmap[SIFIVE_U_DEV_GEM].base); 444 qemu_fdt_add_subnode(fdt, nodename); 445 qemu_fdt_setprop_cell(fdt, nodename, "phandle", phy_phandle); 446 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0x0); 447 g_free(nodename); 448 449 nodename = g_strdup_printf("/soc/pwm@%lx", 450 (long)memmap[SIFIVE_U_DEV_PWM0].base); 451 qemu_fdt_add_subnode(fdt, nodename); 452 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,pwm0"); 453 qemu_fdt_setprop_cells(fdt, nodename, "reg", 454 0x0, memmap[SIFIVE_U_DEV_PWM0].base, 455 0x0, memmap[SIFIVE_U_DEV_PWM0].size); 456 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 457 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 458 SIFIVE_U_PWM0_IRQ0, SIFIVE_U_PWM0_IRQ1, 459 SIFIVE_U_PWM0_IRQ2, SIFIVE_U_PWM0_IRQ3); 460 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 461 prci_phandle, PRCI_CLK_TLCLK); 462 qemu_fdt_setprop_cell(fdt, nodename, "#pwm-cells", 0); 463 g_free(nodename); 464 465 nodename = g_strdup_printf("/soc/pwm@%lx", 466 (long)memmap[SIFIVE_U_DEV_PWM1].base); 467 qemu_fdt_add_subnode(fdt, nodename); 468 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,pwm0"); 469 qemu_fdt_setprop_cells(fdt, nodename, "reg", 470 0x0, memmap[SIFIVE_U_DEV_PWM1].base, 471 0x0, memmap[SIFIVE_U_DEV_PWM1].size); 472 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 473 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 474 SIFIVE_U_PWM1_IRQ0, SIFIVE_U_PWM1_IRQ1, 475 SIFIVE_U_PWM1_IRQ2, SIFIVE_U_PWM1_IRQ3); 476 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 477 prci_phandle, PRCI_CLK_TLCLK); 478 qemu_fdt_setprop_cell(fdt, nodename, "#pwm-cells", 0); 479 g_free(nodename); 480 481 nodename = g_strdup_printf("/soc/serial@%lx", 482 (long)memmap[SIFIVE_U_DEV_UART1].base); 483 qemu_fdt_add_subnode(fdt, nodename); 484 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0"); 485 qemu_fdt_setprop_cells(fdt, nodename, "reg", 486 0x0, memmap[SIFIVE_U_DEV_UART1].base, 487 0x0, memmap[SIFIVE_U_DEV_UART1].size); 488 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 489 prci_phandle, PRCI_CLK_TLCLK); 490 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 491 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_UART1_IRQ); 492 493 qemu_fdt_setprop_string(fdt, "/aliases", "serial1", nodename); 494 g_free(nodename); 495 496 nodename = g_strdup_printf("/soc/serial@%lx", 497 (long)memmap[SIFIVE_U_DEV_UART0].base); 498 qemu_fdt_add_subnode(fdt, nodename); 499 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0"); 500 qemu_fdt_setprop_cells(fdt, nodename, "reg", 501 0x0, memmap[SIFIVE_U_DEV_UART0].base, 502 0x0, memmap[SIFIVE_U_DEV_UART0].size); 503 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 504 prci_phandle, PRCI_CLK_TLCLK); 505 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 506 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_UART0_IRQ); 507 508 qemu_fdt_add_subnode(fdt, "/chosen"); 509 qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename); 510 qemu_fdt_setprop_string(fdt, "/aliases", "serial0", nodename); 511 512 g_free(nodename); 513 514 update_bootargs: 515 if (cmdline && *cmdline) { 516 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); 517 } 518 } 519 520 static void sifive_u_machine_reset(void *opaque, int n, int level) 521 { 522 /* gpio pin active low triggers reset */ 523 if (!level) { 524 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 525 } 526 } 527 528 static void sifive_u_machine_init(MachineState *machine) 529 { 530 const MemMapEntry *memmap = sifive_u_memmap; 531 SiFiveUState *s = RISCV_U_MACHINE(machine); 532 MemoryRegion *system_memory = get_system_memory(); 533 MemoryRegion *flash0 = g_new(MemoryRegion, 1); 534 target_ulong start_addr = memmap[SIFIVE_U_DEV_DRAM].base; 535 target_ulong firmware_end_addr, kernel_start_addr; 536 const char *firmware_name; 537 uint32_t start_addr_hi32 = 0x00000000; 538 int i; 539 uint32_t fdt_load_addr; 540 uint64_t kernel_entry; 541 DriveInfo *dinfo; 542 BlockBackend *blk; 543 DeviceState *flash_dev, *sd_dev, *card_dev; 544 qemu_irq flash_cs, sd_cs; 545 546 /* Initialize SoC */ 547 object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_RISCV_U_SOC); 548 object_property_set_uint(OBJECT(&s->soc), "serial", s->serial, 549 &error_abort); 550 object_property_set_str(OBJECT(&s->soc), "cpu-type", machine->cpu_type, 551 &error_abort); 552 qdev_realize(DEVICE(&s->soc), NULL, &error_fatal); 553 554 /* register RAM */ 555 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_DRAM].base, 556 machine->ram); 557 558 /* register QSPI0 Flash */ 559 memory_region_init_ram(flash0, NULL, "riscv.sifive.u.flash0", 560 memmap[SIFIVE_U_DEV_FLASH0].size, &error_fatal); 561 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_FLASH0].base, 562 flash0); 563 564 /* register gpio-restart */ 565 qdev_connect_gpio_out(DEVICE(&(s->soc.gpio)), 10, 566 qemu_allocate_irq(sifive_u_machine_reset, NULL, 0)); 567 568 /* create device tree */ 569 create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline, 570 riscv_is_32bit(&s->soc.u_cpus)); 571 572 if (s->start_in_flash) { 573 /* 574 * If start_in_flash property is given, assign s->msel to a value 575 * that representing booting from QSPI0 memory-mapped flash. 576 * 577 * This also means that when both start_in_flash and msel properties 578 * are given, start_in_flash takes the precedence over msel. 579 * 580 * Note this is to keep backward compatibility not to break existing 581 * users that use start_in_flash property. 582 */ 583 s->msel = MSEL_MEMMAP_QSPI0_FLASH; 584 } 585 586 switch (s->msel) { 587 case MSEL_MEMMAP_QSPI0_FLASH: 588 start_addr = memmap[SIFIVE_U_DEV_FLASH0].base; 589 break; 590 case MSEL_L2LIM_QSPI0_FLASH: 591 case MSEL_L2LIM_QSPI2_SD: 592 start_addr = memmap[SIFIVE_U_DEV_L2LIM].base; 593 break; 594 default: 595 start_addr = memmap[SIFIVE_U_DEV_DRAM].base; 596 break; 597 } 598 599 firmware_name = riscv_default_firmware_name(&s->soc.u_cpus); 600 firmware_end_addr = riscv_find_and_load_firmware(machine, firmware_name, 601 start_addr, NULL); 602 603 if (machine->kernel_filename) { 604 kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc.u_cpus, 605 firmware_end_addr); 606 607 kernel_entry = riscv_load_kernel(machine->kernel_filename, 608 kernel_start_addr, NULL); 609 610 if (machine->initrd_filename) { 611 hwaddr start; 612 hwaddr end = riscv_load_initrd(machine->initrd_filename, 613 machine->ram_size, kernel_entry, 614 &start); 615 qemu_fdt_setprop_cell(s->fdt, "/chosen", 616 "linux,initrd-start", start); 617 qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", 618 end); 619 } 620 } else { 621 /* 622 * If dynamic firmware is used, it doesn't know where is the next mode 623 * if kernel argument is not set. 624 */ 625 kernel_entry = 0; 626 } 627 628 /* Compute the fdt load address in dram */ 629 fdt_load_addr = riscv_load_fdt(memmap[SIFIVE_U_DEV_DRAM].base, 630 machine->ram_size, s->fdt); 631 if (!riscv_is_32bit(&s->soc.u_cpus)) { 632 start_addr_hi32 = (uint64_t)start_addr >> 32; 633 } 634 635 /* Set machine->fdt for 'dumpdtb' QMP/HMP command */ 636 machine->fdt = s->fdt; 637 638 /* reset vector */ 639 uint32_t reset_vec[12] = { 640 s->msel, /* MSEL pin state */ 641 0x00000297, /* 1: auipc t0, %pcrel_hi(fw_dyn) */ 642 0x02c28613, /* addi a2, t0, %pcrel_lo(1b) */ 643 0xf1402573, /* csrr a0, mhartid */ 644 0, 645 0, 646 0x00028067, /* jr t0 */ 647 start_addr, /* start: .dword */ 648 start_addr_hi32, 649 fdt_load_addr, /* fdt_laddr: .dword */ 650 0x00000000, 651 0x00000000, 652 /* fw_dyn: */ 653 }; 654 if (riscv_is_32bit(&s->soc.u_cpus)) { 655 reset_vec[4] = 0x0202a583; /* lw a1, 32(t0) */ 656 reset_vec[5] = 0x0182a283; /* lw t0, 24(t0) */ 657 } else { 658 reset_vec[4] = 0x0202b583; /* ld a1, 32(t0) */ 659 reset_vec[5] = 0x0182b283; /* ld t0, 24(t0) */ 660 } 661 662 663 /* copy in the reset vector in little_endian byte order */ 664 for (i = 0; i < ARRAY_SIZE(reset_vec); i++) { 665 reset_vec[i] = cpu_to_le32(reset_vec[i]); 666 } 667 rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), 668 memmap[SIFIVE_U_DEV_MROM].base, &address_space_memory); 669 670 riscv_rom_copy_firmware_info(machine, memmap[SIFIVE_U_DEV_MROM].base, 671 memmap[SIFIVE_U_DEV_MROM].size, 672 sizeof(reset_vec), kernel_entry); 673 674 /* Connect an SPI flash to SPI0 */ 675 flash_dev = qdev_new("is25wp256"); 676 dinfo = drive_get(IF_MTD, 0, 0); 677 if (dinfo) { 678 qdev_prop_set_drive_err(flash_dev, "drive", 679 blk_by_legacy_dinfo(dinfo), 680 &error_fatal); 681 } 682 qdev_realize_and_unref(flash_dev, BUS(s->soc.spi0.spi), &error_fatal); 683 684 flash_cs = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 685 sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi0), 1, flash_cs); 686 687 /* Connect an SD card to SPI2 */ 688 sd_dev = ssi_create_peripheral(s->soc.spi2.spi, "ssi-sd"); 689 690 sd_cs = qdev_get_gpio_in_named(sd_dev, SSI_GPIO_CS, 0); 691 sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi2), 1, sd_cs); 692 693 dinfo = drive_get(IF_SD, 0, 0); 694 blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL; 695 card_dev = qdev_new(TYPE_SD_CARD); 696 qdev_prop_set_drive_err(card_dev, "drive", blk, &error_fatal); 697 qdev_prop_set_bit(card_dev, "spi", true); 698 qdev_realize_and_unref(card_dev, 699 qdev_get_child_bus(sd_dev, "sd-bus"), 700 &error_fatal); 701 } 702 703 static bool sifive_u_machine_get_start_in_flash(Object *obj, Error **errp) 704 { 705 SiFiveUState *s = RISCV_U_MACHINE(obj); 706 707 return s->start_in_flash; 708 } 709 710 static void sifive_u_machine_set_start_in_flash(Object *obj, bool value, Error **errp) 711 { 712 SiFiveUState *s = RISCV_U_MACHINE(obj); 713 714 s->start_in_flash = value; 715 } 716 717 static void sifive_u_machine_instance_init(Object *obj) 718 { 719 SiFiveUState *s = RISCV_U_MACHINE(obj); 720 721 s->start_in_flash = false; 722 s->msel = 0; 723 object_property_add_uint32_ptr(obj, "msel", &s->msel, 724 OBJ_PROP_FLAG_READWRITE); 725 object_property_set_description(obj, "msel", 726 "Mode Select (MSEL[3:0]) pin state"); 727 728 s->serial = OTP_SERIAL; 729 object_property_add_uint32_ptr(obj, "serial", &s->serial, 730 OBJ_PROP_FLAG_READWRITE); 731 object_property_set_description(obj, "serial", "Board serial number"); 732 } 733 734 static void sifive_u_machine_class_init(ObjectClass *oc, void *data) 735 { 736 MachineClass *mc = MACHINE_CLASS(oc); 737 738 mc->desc = "RISC-V Board compatible with SiFive U SDK"; 739 mc->init = sifive_u_machine_init; 740 mc->max_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + SIFIVE_U_COMPUTE_CPU_COUNT; 741 mc->min_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + 1; 742 mc->default_cpu_type = SIFIVE_U_CPU; 743 mc->default_cpus = mc->min_cpus; 744 mc->default_ram_id = "riscv.sifive.u.ram"; 745 746 object_class_property_add_bool(oc, "start-in-flash", 747 sifive_u_machine_get_start_in_flash, 748 sifive_u_machine_set_start_in_flash); 749 object_class_property_set_description(oc, "start-in-flash", 750 "Set on to tell QEMU's ROM to jump to " 751 "flash. Otherwise QEMU will jump to DRAM " 752 "or L2LIM depending on the msel value"); 753 } 754 755 static const TypeInfo sifive_u_machine_typeinfo = { 756 .name = MACHINE_TYPE_NAME("sifive_u"), 757 .parent = TYPE_MACHINE, 758 .class_init = sifive_u_machine_class_init, 759 .instance_init = sifive_u_machine_instance_init, 760 .instance_size = sizeof(SiFiveUState), 761 }; 762 763 static void sifive_u_machine_init_register_types(void) 764 { 765 type_register_static(&sifive_u_machine_typeinfo); 766 } 767 768 type_init(sifive_u_machine_init_register_types) 769 770 static void sifive_u_soc_instance_init(Object *obj) 771 { 772 SiFiveUSoCState *s = RISCV_U_SOC(obj); 773 774 object_initialize_child(obj, "e-cluster", &s->e_cluster, TYPE_CPU_CLUSTER); 775 qdev_prop_set_uint32(DEVICE(&s->e_cluster), "cluster-id", 0); 776 777 object_initialize_child(OBJECT(&s->e_cluster), "e-cpus", &s->e_cpus, 778 TYPE_RISCV_HART_ARRAY); 779 qdev_prop_set_uint32(DEVICE(&s->e_cpus), "num-harts", 1); 780 qdev_prop_set_uint32(DEVICE(&s->e_cpus), "hartid-base", 0); 781 qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", SIFIVE_E_CPU); 782 qdev_prop_set_uint64(DEVICE(&s->e_cpus), "resetvec", 0x1004); 783 784 object_initialize_child(obj, "u-cluster", &s->u_cluster, TYPE_CPU_CLUSTER); 785 qdev_prop_set_uint32(DEVICE(&s->u_cluster), "cluster-id", 1); 786 787 object_initialize_child(OBJECT(&s->u_cluster), "u-cpus", &s->u_cpus, 788 TYPE_RISCV_HART_ARRAY); 789 790 object_initialize_child(obj, "prci", &s->prci, TYPE_SIFIVE_U_PRCI); 791 object_initialize_child(obj, "otp", &s->otp, TYPE_SIFIVE_U_OTP); 792 object_initialize_child(obj, "gem", &s->gem, TYPE_CADENCE_GEM); 793 object_initialize_child(obj, "gpio", &s->gpio, TYPE_SIFIVE_GPIO); 794 object_initialize_child(obj, "pdma", &s->dma, TYPE_SIFIVE_PDMA); 795 object_initialize_child(obj, "spi0", &s->spi0, TYPE_SIFIVE_SPI); 796 object_initialize_child(obj, "spi2", &s->spi2, TYPE_SIFIVE_SPI); 797 object_initialize_child(obj, "pwm0", &s->pwm[0], TYPE_SIFIVE_PWM); 798 object_initialize_child(obj, "pwm1", &s->pwm[1], TYPE_SIFIVE_PWM); 799 } 800 801 static void sifive_u_soc_realize(DeviceState *dev, Error **errp) 802 { 803 MachineState *ms = MACHINE(qdev_get_machine()); 804 SiFiveUSoCState *s = RISCV_U_SOC(dev); 805 const MemMapEntry *memmap = sifive_u_memmap; 806 MemoryRegion *system_memory = get_system_memory(); 807 MemoryRegion *mask_rom = g_new(MemoryRegion, 1); 808 MemoryRegion *l2lim_mem = g_new(MemoryRegion, 1); 809 char *plic_hart_config; 810 int i, j; 811 NICInfo *nd = &nd_table[0]; 812 813 qdev_prop_set_uint32(DEVICE(&s->u_cpus), "num-harts", ms->smp.cpus - 1); 814 qdev_prop_set_uint32(DEVICE(&s->u_cpus), "hartid-base", 1); 815 qdev_prop_set_string(DEVICE(&s->u_cpus), "cpu-type", s->cpu_type); 816 qdev_prop_set_uint64(DEVICE(&s->u_cpus), "resetvec", 0x1004); 817 818 sysbus_realize(SYS_BUS_DEVICE(&s->e_cpus), &error_fatal); 819 sysbus_realize(SYS_BUS_DEVICE(&s->u_cpus), &error_fatal); 820 /* 821 * The cluster must be realized after the RISC-V hart array container, 822 * as the container's CPU object is only created on realize, and the 823 * CPU must exist and have been parented into the cluster before the 824 * cluster is realized. 825 */ 826 qdev_realize(DEVICE(&s->e_cluster), NULL, &error_abort); 827 qdev_realize(DEVICE(&s->u_cluster), NULL, &error_abort); 828 829 /* boot rom */ 830 memory_region_init_rom(mask_rom, OBJECT(dev), "riscv.sifive.u.mrom", 831 memmap[SIFIVE_U_DEV_MROM].size, &error_fatal); 832 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_MROM].base, 833 mask_rom); 834 835 /* 836 * Add L2-LIM at reset size. 837 * This should be reduced in size as the L2 Cache Controller WayEnable 838 * register is incremented. Unfortunately I don't see a nice (or any) way 839 * to handle reducing or blocking out the L2 LIM while still allowing it 840 * be re returned to all enabled after a reset. For the time being, just 841 * leave it enabled all the time. This won't break anything, but will be 842 * too generous to misbehaving guests. 843 */ 844 memory_region_init_ram(l2lim_mem, NULL, "riscv.sifive.u.l2lim", 845 memmap[SIFIVE_U_DEV_L2LIM].size, &error_fatal); 846 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_L2LIM].base, 847 l2lim_mem); 848 849 /* create PLIC hart topology configuration string */ 850 plic_hart_config = riscv_plic_hart_config_string(ms->smp.cpus); 851 852 /* MMIO */ 853 s->plic = sifive_plic_create(memmap[SIFIVE_U_DEV_PLIC].base, 854 plic_hart_config, ms->smp.cpus, 0, 855 SIFIVE_U_PLIC_NUM_SOURCES, 856 SIFIVE_U_PLIC_NUM_PRIORITIES, 857 SIFIVE_U_PLIC_PRIORITY_BASE, 858 SIFIVE_U_PLIC_PENDING_BASE, 859 SIFIVE_U_PLIC_ENABLE_BASE, 860 SIFIVE_U_PLIC_ENABLE_STRIDE, 861 SIFIVE_U_PLIC_CONTEXT_BASE, 862 SIFIVE_U_PLIC_CONTEXT_STRIDE, 863 memmap[SIFIVE_U_DEV_PLIC].size); 864 g_free(plic_hart_config); 865 sifive_uart_create(system_memory, memmap[SIFIVE_U_DEV_UART0].base, 866 serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART0_IRQ)); 867 sifive_uart_create(system_memory, memmap[SIFIVE_U_DEV_UART1].base, 868 serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART1_IRQ)); 869 riscv_aclint_swi_create(memmap[SIFIVE_U_DEV_CLINT].base, 0, 870 ms->smp.cpus, false); 871 riscv_aclint_mtimer_create(memmap[SIFIVE_U_DEV_CLINT].base + 872 RISCV_ACLINT_SWI_SIZE, 873 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 0, ms->smp.cpus, 874 RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, 875 CLINT_TIMEBASE_FREQ, false); 876 877 if (!sysbus_realize(SYS_BUS_DEVICE(&s->prci), errp)) { 878 return; 879 } 880 sysbus_mmio_map(SYS_BUS_DEVICE(&s->prci), 0, memmap[SIFIVE_U_DEV_PRCI].base); 881 882 qdev_prop_set_uint32(DEVICE(&s->gpio), "ngpio", 16); 883 if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) { 884 return; 885 } 886 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, memmap[SIFIVE_U_DEV_GPIO].base); 887 888 /* Pass all GPIOs to the SOC layer so they are available to the board */ 889 qdev_pass_gpios(DEVICE(&s->gpio), dev, NULL); 890 891 /* Connect GPIO interrupts to the PLIC */ 892 for (i = 0; i < 16; i++) { 893 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), i, 894 qdev_get_gpio_in(DEVICE(s->plic), 895 SIFIVE_U_GPIO_IRQ0 + i)); 896 } 897 898 /* PDMA */ 899 sysbus_realize(SYS_BUS_DEVICE(&s->dma), errp); 900 sysbus_mmio_map(SYS_BUS_DEVICE(&s->dma), 0, memmap[SIFIVE_U_DEV_PDMA].base); 901 902 /* Connect PDMA interrupts to the PLIC */ 903 for (i = 0; i < SIFIVE_PDMA_IRQS; i++) { 904 sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), i, 905 qdev_get_gpio_in(DEVICE(s->plic), 906 SIFIVE_U_PDMA_IRQ0 + i)); 907 } 908 909 qdev_prop_set_uint32(DEVICE(&s->otp), "serial", s->serial); 910 if (!sysbus_realize(SYS_BUS_DEVICE(&s->otp), errp)) { 911 return; 912 } 913 sysbus_mmio_map(SYS_BUS_DEVICE(&s->otp), 0, memmap[SIFIVE_U_DEV_OTP].base); 914 915 /* FIXME use qdev NIC properties instead of nd_table[] */ 916 if (nd->used) { 917 qemu_check_nic_model(nd, TYPE_CADENCE_GEM); 918 qdev_set_nic_properties(DEVICE(&s->gem), nd); 919 } 920 object_property_set_int(OBJECT(&s->gem), "revision", GEM_REVISION, 921 &error_abort); 922 if (!sysbus_realize(SYS_BUS_DEVICE(&s->gem), errp)) { 923 return; 924 } 925 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem), 0, memmap[SIFIVE_U_DEV_GEM].base); 926 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem), 0, 927 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_GEM_IRQ)); 928 929 /* PWM */ 930 for (i = 0; i < 2; i++) { 931 if (!sysbus_realize(SYS_BUS_DEVICE(&s->pwm[i]), errp)) { 932 return; 933 } 934 sysbus_mmio_map(SYS_BUS_DEVICE(&s->pwm[i]), 0, 935 memmap[SIFIVE_U_DEV_PWM0].base + (0x1000 * i)); 936 937 /* Connect PWM interrupts to the PLIC */ 938 for (j = 0; j < SIFIVE_PWM_IRQS; j++) { 939 sysbus_connect_irq(SYS_BUS_DEVICE(&s->pwm[i]), j, 940 qdev_get_gpio_in(DEVICE(s->plic), 941 SIFIVE_U_PWM0_IRQ0 + (i * 4) + j)); 942 } 943 } 944 945 create_unimplemented_device("riscv.sifive.u.gem-mgmt", 946 memmap[SIFIVE_U_DEV_GEM_MGMT].base, memmap[SIFIVE_U_DEV_GEM_MGMT].size); 947 948 create_unimplemented_device("riscv.sifive.u.dmc", 949 memmap[SIFIVE_U_DEV_DMC].base, memmap[SIFIVE_U_DEV_DMC].size); 950 951 create_unimplemented_device("riscv.sifive.u.l2cc", 952 memmap[SIFIVE_U_DEV_L2CC].base, memmap[SIFIVE_U_DEV_L2CC].size); 953 954 sysbus_realize(SYS_BUS_DEVICE(&s->spi0), errp); 955 sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi0), 0, 956 memmap[SIFIVE_U_DEV_QSPI0].base); 957 sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi0), 0, 958 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_QSPI0_IRQ)); 959 sysbus_realize(SYS_BUS_DEVICE(&s->spi2), errp); 960 sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi2), 0, 961 memmap[SIFIVE_U_DEV_QSPI2].base); 962 sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi2), 0, 963 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_QSPI2_IRQ)); 964 } 965 966 static Property sifive_u_soc_props[] = { 967 DEFINE_PROP_UINT32("serial", SiFiveUSoCState, serial, OTP_SERIAL), 968 DEFINE_PROP_STRING("cpu-type", SiFiveUSoCState, cpu_type), 969 DEFINE_PROP_END_OF_LIST() 970 }; 971 972 static void sifive_u_soc_class_init(ObjectClass *oc, void *data) 973 { 974 DeviceClass *dc = DEVICE_CLASS(oc); 975 976 device_class_set_props(dc, sifive_u_soc_props); 977 dc->realize = sifive_u_soc_realize; 978 /* Reason: Uses serial_hds in realize function, thus can't be used twice */ 979 dc->user_creatable = false; 980 } 981 982 static const TypeInfo sifive_u_soc_type_info = { 983 .name = TYPE_RISCV_U_SOC, 984 .parent = TYPE_DEVICE, 985 .instance_size = sizeof(SiFiveUSoCState), 986 .instance_init = sifive_u_soc_instance_init, 987 .class_init = sifive_u_soc_class_init, 988 }; 989 990 static void sifive_u_soc_register_types(void) 991 { 992 type_register_static(&sifive_u_soc_type_info); 993 } 994 995 type_init(sifive_u_soc_register_types) 996