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", 0x35); 291 qemu_fdt_setprop_cell(fdt, nodename, "phandle", plic_phandle); 292 plic_phandle = qemu_fdt_get_phandle(fdt, nodename); 293 g_free(cells); 294 g_free(nodename); 295 296 gpio_phandle = phandle++; 297 nodename = g_strdup_printf("/soc/gpio@%lx", 298 (long)memmap[SIFIVE_U_DEV_GPIO].base); 299 qemu_fdt_add_subnode(fdt, nodename); 300 qemu_fdt_setprop_cell(fdt, nodename, "phandle", gpio_phandle); 301 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 302 prci_phandle, PRCI_CLK_TLCLK); 303 qemu_fdt_setprop_cell(fdt, nodename, "#interrupt-cells", 2); 304 qemu_fdt_setprop(fdt, nodename, "interrupt-controller", NULL, 0); 305 qemu_fdt_setprop_cell(fdt, nodename, "#gpio-cells", 2); 306 qemu_fdt_setprop(fdt, nodename, "gpio-controller", NULL, 0); 307 qemu_fdt_setprop_cells(fdt, nodename, "reg", 308 0x0, memmap[SIFIVE_U_DEV_GPIO].base, 309 0x0, memmap[SIFIVE_U_DEV_GPIO].size); 310 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", SIFIVE_U_GPIO_IRQ0, 311 SIFIVE_U_GPIO_IRQ1, SIFIVE_U_GPIO_IRQ2, SIFIVE_U_GPIO_IRQ3, 312 SIFIVE_U_GPIO_IRQ4, SIFIVE_U_GPIO_IRQ5, SIFIVE_U_GPIO_IRQ6, 313 SIFIVE_U_GPIO_IRQ7, SIFIVE_U_GPIO_IRQ8, SIFIVE_U_GPIO_IRQ9, 314 SIFIVE_U_GPIO_IRQ10, SIFIVE_U_GPIO_IRQ11, SIFIVE_U_GPIO_IRQ12, 315 SIFIVE_U_GPIO_IRQ13, SIFIVE_U_GPIO_IRQ14, SIFIVE_U_GPIO_IRQ15); 316 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 317 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,gpio0"); 318 g_free(nodename); 319 320 nodename = g_strdup_printf("/gpio-restart"); 321 qemu_fdt_add_subnode(fdt, nodename); 322 qemu_fdt_setprop_cells(fdt, nodename, "gpios", gpio_phandle, 10, 1); 323 qemu_fdt_setprop_string(fdt, nodename, "compatible", "gpio-restart"); 324 g_free(nodename); 325 326 nodename = g_strdup_printf("/soc/dma@%lx", 327 (long)memmap[SIFIVE_U_DEV_PDMA].base); 328 qemu_fdt_add_subnode(fdt, nodename); 329 qemu_fdt_setprop_cell(fdt, nodename, "#dma-cells", 1); 330 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 331 SIFIVE_U_PDMA_IRQ0, SIFIVE_U_PDMA_IRQ1, SIFIVE_U_PDMA_IRQ2, 332 SIFIVE_U_PDMA_IRQ3, SIFIVE_U_PDMA_IRQ4, SIFIVE_U_PDMA_IRQ5, 333 SIFIVE_U_PDMA_IRQ6, SIFIVE_U_PDMA_IRQ7); 334 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 335 qemu_fdt_setprop_cells(fdt, nodename, "reg", 336 0x0, memmap[SIFIVE_U_DEV_PDMA].base, 337 0x0, memmap[SIFIVE_U_DEV_PDMA].size); 338 qemu_fdt_setprop_string(fdt, nodename, "compatible", 339 "sifive,fu540-c000-pdma"); 340 g_free(nodename); 341 342 nodename = g_strdup_printf("/soc/cache-controller@%lx", 343 (long)memmap[SIFIVE_U_DEV_L2CC].base); 344 qemu_fdt_add_subnode(fdt, nodename); 345 qemu_fdt_setprop_cells(fdt, nodename, "reg", 346 0x0, memmap[SIFIVE_U_DEV_L2CC].base, 347 0x0, memmap[SIFIVE_U_DEV_L2CC].size); 348 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 349 SIFIVE_U_L2CC_IRQ0, SIFIVE_U_L2CC_IRQ1, SIFIVE_U_L2CC_IRQ2); 350 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 351 qemu_fdt_setprop(fdt, nodename, "cache-unified", NULL, 0); 352 qemu_fdt_setprop_cell(fdt, nodename, "cache-size", 2097152); 353 qemu_fdt_setprop_cell(fdt, nodename, "cache-sets", 1024); 354 qemu_fdt_setprop_cell(fdt, nodename, "cache-level", 2); 355 qemu_fdt_setprop_cell(fdt, nodename, "cache-block-size", 64); 356 qemu_fdt_setprop_string(fdt, nodename, "compatible", 357 "sifive,fu540-c000-ccache"); 358 g_free(nodename); 359 360 nodename = g_strdup_printf("/soc/spi@%lx", 361 (long)memmap[SIFIVE_U_DEV_QSPI2].base); 362 qemu_fdt_add_subnode(fdt, nodename); 363 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 364 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 365 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 366 prci_phandle, PRCI_CLK_TLCLK); 367 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_QSPI2_IRQ); 368 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 369 qemu_fdt_setprop_cells(fdt, nodename, "reg", 370 0x0, memmap[SIFIVE_U_DEV_QSPI2].base, 371 0x0, memmap[SIFIVE_U_DEV_QSPI2].size); 372 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,spi0"); 373 g_free(nodename); 374 375 nodename = g_strdup_printf("/soc/spi@%lx/mmc@0", 376 (long)memmap[SIFIVE_U_DEV_QSPI2].base); 377 qemu_fdt_add_subnode(fdt, nodename); 378 qemu_fdt_setprop(fdt, nodename, "disable-wp", NULL, 0); 379 qemu_fdt_setprop_cells(fdt, nodename, "voltage-ranges", 3300, 3300); 380 qemu_fdt_setprop_cell(fdt, nodename, "spi-max-frequency", 20000000); 381 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0); 382 qemu_fdt_setprop_string(fdt, nodename, "compatible", "mmc-spi-slot"); 383 g_free(nodename); 384 385 nodename = g_strdup_printf("/soc/spi@%lx", 386 (long)memmap[SIFIVE_U_DEV_QSPI0].base); 387 qemu_fdt_add_subnode(fdt, nodename); 388 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 389 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 390 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 391 prci_phandle, PRCI_CLK_TLCLK); 392 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_QSPI0_IRQ); 393 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 394 qemu_fdt_setprop_cells(fdt, nodename, "reg", 395 0x0, memmap[SIFIVE_U_DEV_QSPI0].base, 396 0x0, memmap[SIFIVE_U_DEV_QSPI0].size); 397 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,spi0"); 398 g_free(nodename); 399 400 nodename = g_strdup_printf("/soc/spi@%lx/flash@0", 401 (long)memmap[SIFIVE_U_DEV_QSPI0].base); 402 qemu_fdt_add_subnode(fdt, nodename); 403 qemu_fdt_setprop_cell(fdt, nodename, "spi-rx-bus-width", 4); 404 qemu_fdt_setprop_cell(fdt, nodename, "spi-tx-bus-width", 4); 405 qemu_fdt_setprop(fdt, nodename, "m25p,fast-read", NULL, 0); 406 qemu_fdt_setprop_cell(fdt, nodename, "spi-max-frequency", 50000000); 407 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0); 408 qemu_fdt_setprop_string(fdt, nodename, "compatible", "jedec,spi-nor"); 409 g_free(nodename); 410 411 phy_phandle = phandle++; 412 nodename = g_strdup_printf("/soc/ethernet@%lx", 413 (long)memmap[SIFIVE_U_DEV_GEM].base); 414 qemu_fdt_add_subnode(fdt, nodename); 415 qemu_fdt_setprop_string(fdt, nodename, "compatible", 416 "sifive,fu540-c000-gem"); 417 qemu_fdt_setprop_cells(fdt, nodename, "reg", 418 0x0, memmap[SIFIVE_U_DEV_GEM].base, 419 0x0, memmap[SIFIVE_U_DEV_GEM].size, 420 0x0, memmap[SIFIVE_U_DEV_GEM_MGMT].base, 421 0x0, memmap[SIFIVE_U_DEV_GEM_MGMT].size); 422 qemu_fdt_setprop_string(fdt, nodename, "reg-names", "control"); 423 qemu_fdt_setprop_string(fdt, nodename, "phy-mode", "gmii"); 424 qemu_fdt_setprop_cell(fdt, nodename, "phy-handle", phy_phandle); 425 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 426 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_GEM_IRQ); 427 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 428 prci_phandle, PRCI_CLK_GEMGXLPLL, prci_phandle, PRCI_CLK_GEMGXLPLL); 429 qemu_fdt_setprop_string_array(fdt, nodename, "clock-names", 430 (char **)ðclk_names, ARRAY_SIZE(ethclk_names)); 431 qemu_fdt_setprop(fdt, nodename, "local-mac-address", 432 s->soc.gem.conf.macaddr.a, ETH_ALEN); 433 qemu_fdt_setprop_cell(fdt, nodename, "#address-cells", 1); 434 qemu_fdt_setprop_cell(fdt, nodename, "#size-cells", 0); 435 436 qemu_fdt_add_subnode(fdt, "/aliases"); 437 qemu_fdt_setprop_string(fdt, "/aliases", "ethernet0", nodename); 438 439 g_free(nodename); 440 441 nodename = g_strdup_printf("/soc/ethernet@%lx/ethernet-phy@0", 442 (long)memmap[SIFIVE_U_DEV_GEM].base); 443 qemu_fdt_add_subnode(fdt, nodename); 444 qemu_fdt_setprop_cell(fdt, nodename, "phandle", phy_phandle); 445 qemu_fdt_setprop_cell(fdt, nodename, "reg", 0x0); 446 g_free(nodename); 447 448 nodename = g_strdup_printf("/soc/pwm@%lx", 449 (long)memmap[SIFIVE_U_DEV_PWM0].base); 450 qemu_fdt_add_subnode(fdt, nodename); 451 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,pwm0"); 452 qemu_fdt_setprop_cells(fdt, nodename, "reg", 453 0x0, memmap[SIFIVE_U_DEV_PWM0].base, 454 0x0, memmap[SIFIVE_U_DEV_PWM0].size); 455 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 456 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 457 SIFIVE_U_PWM0_IRQ0, SIFIVE_U_PWM0_IRQ1, 458 SIFIVE_U_PWM0_IRQ2, SIFIVE_U_PWM0_IRQ3); 459 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 460 prci_phandle, PRCI_CLK_TLCLK); 461 qemu_fdt_setprop_cell(fdt, nodename, "#pwm-cells", 0); 462 g_free(nodename); 463 464 nodename = g_strdup_printf("/soc/pwm@%lx", 465 (long)memmap[SIFIVE_U_DEV_PWM1].base); 466 qemu_fdt_add_subnode(fdt, nodename); 467 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,pwm0"); 468 qemu_fdt_setprop_cells(fdt, nodename, "reg", 469 0x0, memmap[SIFIVE_U_DEV_PWM1].base, 470 0x0, memmap[SIFIVE_U_DEV_PWM1].size); 471 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 472 qemu_fdt_setprop_cells(fdt, nodename, "interrupts", 473 SIFIVE_U_PWM1_IRQ0, SIFIVE_U_PWM1_IRQ1, 474 SIFIVE_U_PWM1_IRQ2, SIFIVE_U_PWM1_IRQ3); 475 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 476 prci_phandle, PRCI_CLK_TLCLK); 477 qemu_fdt_setprop_cell(fdt, nodename, "#pwm-cells", 0); 478 g_free(nodename); 479 480 nodename = g_strdup_printf("/soc/serial@%lx", 481 (long)memmap[SIFIVE_U_DEV_UART1].base); 482 qemu_fdt_add_subnode(fdt, nodename); 483 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0"); 484 qemu_fdt_setprop_cells(fdt, nodename, "reg", 485 0x0, memmap[SIFIVE_U_DEV_UART1].base, 486 0x0, memmap[SIFIVE_U_DEV_UART1].size); 487 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 488 prci_phandle, PRCI_CLK_TLCLK); 489 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 490 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_UART1_IRQ); 491 492 qemu_fdt_setprop_string(fdt, "/aliases", "serial1", nodename); 493 g_free(nodename); 494 495 nodename = g_strdup_printf("/soc/serial@%lx", 496 (long)memmap[SIFIVE_U_DEV_UART0].base); 497 qemu_fdt_add_subnode(fdt, nodename); 498 qemu_fdt_setprop_string(fdt, nodename, "compatible", "sifive,uart0"); 499 qemu_fdt_setprop_cells(fdt, nodename, "reg", 500 0x0, memmap[SIFIVE_U_DEV_UART0].base, 501 0x0, memmap[SIFIVE_U_DEV_UART0].size); 502 qemu_fdt_setprop_cells(fdt, nodename, "clocks", 503 prci_phandle, PRCI_CLK_TLCLK); 504 qemu_fdt_setprop_cell(fdt, nodename, "interrupt-parent", plic_phandle); 505 qemu_fdt_setprop_cell(fdt, nodename, "interrupts", SIFIVE_U_UART0_IRQ); 506 507 qemu_fdt_add_subnode(fdt, "/chosen"); 508 qemu_fdt_setprop_string(fdt, "/chosen", "stdout-path", nodename); 509 qemu_fdt_setprop_string(fdt, "/aliases", "serial0", nodename); 510 511 g_free(nodename); 512 513 update_bootargs: 514 if (cmdline && *cmdline) { 515 qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", cmdline); 516 } 517 } 518 519 static void sifive_u_machine_reset(void *opaque, int n, int level) 520 { 521 /* gpio pin active low triggers reset */ 522 if (!level) { 523 qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); 524 } 525 } 526 527 static void sifive_u_machine_init(MachineState *machine) 528 { 529 const MemMapEntry *memmap = sifive_u_memmap; 530 SiFiveUState *s = RISCV_U_MACHINE(machine); 531 MemoryRegion *system_memory = get_system_memory(); 532 MemoryRegion *flash0 = g_new(MemoryRegion, 1); 533 target_ulong start_addr = memmap[SIFIVE_U_DEV_DRAM].base; 534 target_ulong firmware_end_addr, kernel_start_addr; 535 uint32_t start_addr_hi32 = 0x00000000; 536 int i; 537 uint32_t fdt_load_addr; 538 uint64_t kernel_entry; 539 DriveInfo *dinfo; 540 BlockBackend *blk; 541 DeviceState *flash_dev, *sd_dev, *card_dev; 542 qemu_irq flash_cs, sd_cs; 543 544 /* Initialize SoC */ 545 object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_RISCV_U_SOC); 546 object_property_set_uint(OBJECT(&s->soc), "serial", s->serial, 547 &error_abort); 548 object_property_set_str(OBJECT(&s->soc), "cpu-type", machine->cpu_type, 549 &error_abort); 550 qdev_realize(DEVICE(&s->soc), NULL, &error_fatal); 551 552 /* register RAM */ 553 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_DRAM].base, 554 machine->ram); 555 556 /* register QSPI0 Flash */ 557 memory_region_init_ram(flash0, NULL, "riscv.sifive.u.flash0", 558 memmap[SIFIVE_U_DEV_FLASH0].size, &error_fatal); 559 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_FLASH0].base, 560 flash0); 561 562 /* register gpio-restart */ 563 qdev_connect_gpio_out(DEVICE(&(s->soc.gpio)), 10, 564 qemu_allocate_irq(sifive_u_machine_reset, NULL, 0)); 565 566 /* create device tree */ 567 create_fdt(s, memmap, machine->ram_size, machine->kernel_cmdline, 568 riscv_is_32bit(&s->soc.u_cpus)); 569 570 if (s->start_in_flash) { 571 /* 572 * If start_in_flash property is given, assign s->msel to a value 573 * that representing booting from QSPI0 memory-mapped flash. 574 * 575 * This also means that when both start_in_flash and msel properties 576 * are given, start_in_flash takes the precedence over msel. 577 * 578 * Note this is to keep backward compatibility not to break existing 579 * users that use start_in_flash property. 580 */ 581 s->msel = MSEL_MEMMAP_QSPI0_FLASH; 582 } 583 584 switch (s->msel) { 585 case MSEL_MEMMAP_QSPI0_FLASH: 586 start_addr = memmap[SIFIVE_U_DEV_FLASH0].base; 587 break; 588 case MSEL_L2LIM_QSPI0_FLASH: 589 case MSEL_L2LIM_QSPI2_SD: 590 start_addr = memmap[SIFIVE_U_DEV_L2LIM].base; 591 break; 592 default: 593 start_addr = memmap[SIFIVE_U_DEV_DRAM].base; 594 break; 595 } 596 597 if (riscv_is_32bit(&s->soc.u_cpus)) { 598 firmware_end_addr = riscv_find_and_load_firmware(machine, 599 RISCV32_BIOS_BIN, start_addr, NULL); 600 } else { 601 firmware_end_addr = riscv_find_and_load_firmware(machine, 602 RISCV64_BIOS_BIN, start_addr, NULL); 603 } 604 605 if (machine->kernel_filename) { 606 kernel_start_addr = riscv_calc_kernel_start_addr(&s->soc.u_cpus, 607 firmware_end_addr); 608 609 kernel_entry = riscv_load_kernel(machine->kernel_filename, 610 kernel_start_addr, NULL); 611 612 if (machine->initrd_filename) { 613 hwaddr start; 614 hwaddr end = riscv_load_initrd(machine->initrd_filename, 615 machine->ram_size, kernel_entry, 616 &start); 617 qemu_fdt_setprop_cell(s->fdt, "/chosen", 618 "linux,initrd-start", start); 619 qemu_fdt_setprop_cell(s->fdt, "/chosen", "linux,initrd-end", 620 end); 621 } 622 } else { 623 /* 624 * If dynamic firmware is used, it doesn't know where is the next mode 625 * if kernel argument is not set. 626 */ 627 kernel_entry = 0; 628 } 629 630 /* Compute the fdt load address in dram */ 631 fdt_load_addr = riscv_load_fdt(memmap[SIFIVE_U_DEV_DRAM].base, 632 machine->ram_size, s->fdt); 633 if (!riscv_is_32bit(&s->soc.u_cpus)) { 634 start_addr_hi32 = (uint64_t)start_addr >> 32; 635 } 636 637 /* reset vector */ 638 uint32_t reset_vec[12] = { 639 s->msel, /* MSEL pin state */ 640 0x00000297, /* 1: auipc t0, %pcrel_hi(fw_dyn) */ 641 0x02c28613, /* addi a2, t0, %pcrel_lo(1b) */ 642 0xf1402573, /* csrr a0, mhartid */ 643 0, 644 0, 645 0x00028067, /* jr t0 */ 646 start_addr, /* start: .dword */ 647 start_addr_hi32, 648 fdt_load_addr, /* fdt_laddr: .dword */ 649 0x00000000, 650 0x00000000, 651 /* fw_dyn: */ 652 }; 653 if (riscv_is_32bit(&s->soc.u_cpus)) { 654 reset_vec[4] = 0x0202a583; /* lw a1, 32(t0) */ 655 reset_vec[5] = 0x0182a283; /* lw t0, 24(t0) */ 656 } else { 657 reset_vec[4] = 0x0202b583; /* ld a1, 32(t0) */ 658 reset_vec[5] = 0x0182b283; /* ld t0, 24(t0) */ 659 } 660 661 662 /* copy in the reset vector in little_endian byte order */ 663 for (i = 0; i < ARRAY_SIZE(reset_vec); i++) { 664 reset_vec[i] = cpu_to_le32(reset_vec[i]); 665 } 666 rom_add_blob_fixed_as("mrom.reset", reset_vec, sizeof(reset_vec), 667 memmap[SIFIVE_U_DEV_MROM].base, &address_space_memory); 668 669 riscv_rom_copy_firmware_info(machine, memmap[SIFIVE_U_DEV_MROM].base, 670 memmap[SIFIVE_U_DEV_MROM].size, 671 sizeof(reset_vec), kernel_entry); 672 673 /* Connect an SPI flash to SPI0 */ 674 flash_dev = qdev_new("is25wp256"); 675 dinfo = drive_get(IF_MTD, 0, 0); 676 if (dinfo) { 677 qdev_prop_set_drive_err(flash_dev, "drive", 678 blk_by_legacy_dinfo(dinfo), 679 &error_fatal); 680 } 681 qdev_realize_and_unref(flash_dev, BUS(s->soc.spi0.spi), &error_fatal); 682 683 flash_cs = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 684 sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi0), 1, flash_cs); 685 686 /* Connect an SD card to SPI2 */ 687 sd_dev = ssi_create_peripheral(s->soc.spi2.spi, "ssi-sd"); 688 689 sd_cs = qdev_get_gpio_in_named(sd_dev, SSI_GPIO_CS, 0); 690 sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi2), 1, sd_cs); 691 692 dinfo = drive_get(IF_SD, 0, 0); 693 blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL; 694 card_dev = qdev_new(TYPE_SD_CARD); 695 qdev_prop_set_drive_err(card_dev, "drive", blk, &error_fatal); 696 qdev_prop_set_bit(card_dev, "spi", true); 697 qdev_realize_and_unref(card_dev, 698 qdev_get_child_bus(sd_dev, "sd-bus"), 699 &error_fatal); 700 } 701 702 static bool sifive_u_machine_get_start_in_flash(Object *obj, Error **errp) 703 { 704 SiFiveUState *s = RISCV_U_MACHINE(obj); 705 706 return s->start_in_flash; 707 } 708 709 static void sifive_u_machine_set_start_in_flash(Object *obj, bool value, Error **errp) 710 { 711 SiFiveUState *s = RISCV_U_MACHINE(obj); 712 713 s->start_in_flash = value; 714 } 715 716 static void sifive_u_machine_instance_init(Object *obj) 717 { 718 SiFiveUState *s = RISCV_U_MACHINE(obj); 719 720 s->start_in_flash = false; 721 s->msel = 0; 722 object_property_add_uint32_ptr(obj, "msel", &s->msel, 723 OBJ_PROP_FLAG_READWRITE); 724 object_property_set_description(obj, "msel", 725 "Mode Select (MSEL[3:0]) pin state"); 726 727 s->serial = OTP_SERIAL; 728 object_property_add_uint32_ptr(obj, "serial", &s->serial, 729 OBJ_PROP_FLAG_READWRITE); 730 object_property_set_description(obj, "serial", "Board serial number"); 731 } 732 733 static void sifive_u_machine_class_init(ObjectClass *oc, void *data) 734 { 735 MachineClass *mc = MACHINE_CLASS(oc); 736 737 mc->desc = "RISC-V Board compatible with SiFive U SDK"; 738 mc->init = sifive_u_machine_init; 739 mc->max_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + SIFIVE_U_COMPUTE_CPU_COUNT; 740 mc->min_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + 1; 741 mc->default_cpu_type = SIFIVE_U_CPU; 742 mc->default_cpus = mc->min_cpus; 743 mc->default_ram_id = "riscv.sifive.u.ram"; 744 745 object_class_property_add_bool(oc, "start-in-flash", 746 sifive_u_machine_get_start_in_flash, 747 sifive_u_machine_set_start_in_flash); 748 object_class_property_set_description(oc, "start-in-flash", 749 "Set on to tell QEMU's ROM to jump to " 750 "flash. Otherwise QEMU will jump to DRAM " 751 "or L2LIM depending on the msel value"); 752 } 753 754 static const TypeInfo sifive_u_machine_typeinfo = { 755 .name = MACHINE_TYPE_NAME("sifive_u"), 756 .parent = TYPE_MACHINE, 757 .class_init = sifive_u_machine_class_init, 758 .instance_init = sifive_u_machine_instance_init, 759 .instance_size = sizeof(SiFiveUState), 760 }; 761 762 static void sifive_u_machine_init_register_types(void) 763 { 764 type_register_static(&sifive_u_machine_typeinfo); 765 } 766 767 type_init(sifive_u_machine_init_register_types) 768 769 static void sifive_u_soc_instance_init(Object *obj) 770 { 771 SiFiveUSoCState *s = RISCV_U_SOC(obj); 772 773 object_initialize_child(obj, "e-cluster", &s->e_cluster, TYPE_CPU_CLUSTER); 774 qdev_prop_set_uint32(DEVICE(&s->e_cluster), "cluster-id", 0); 775 776 object_initialize_child(OBJECT(&s->e_cluster), "e-cpus", &s->e_cpus, 777 TYPE_RISCV_HART_ARRAY); 778 qdev_prop_set_uint32(DEVICE(&s->e_cpus), "num-harts", 1); 779 qdev_prop_set_uint32(DEVICE(&s->e_cpus), "hartid-base", 0); 780 qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", SIFIVE_E_CPU); 781 qdev_prop_set_uint64(DEVICE(&s->e_cpus), "resetvec", 0x1004); 782 783 object_initialize_child(obj, "u-cluster", &s->u_cluster, TYPE_CPU_CLUSTER); 784 qdev_prop_set_uint32(DEVICE(&s->u_cluster), "cluster-id", 1); 785 786 object_initialize_child(OBJECT(&s->u_cluster), "u-cpus", &s->u_cpus, 787 TYPE_RISCV_HART_ARRAY); 788 789 object_initialize_child(obj, "prci", &s->prci, TYPE_SIFIVE_U_PRCI); 790 object_initialize_child(obj, "otp", &s->otp, TYPE_SIFIVE_U_OTP); 791 object_initialize_child(obj, "gem", &s->gem, TYPE_CADENCE_GEM); 792 object_initialize_child(obj, "gpio", &s->gpio, TYPE_SIFIVE_GPIO); 793 object_initialize_child(obj, "pdma", &s->dma, TYPE_SIFIVE_PDMA); 794 object_initialize_child(obj, "spi0", &s->spi0, TYPE_SIFIVE_SPI); 795 object_initialize_child(obj, "spi2", &s->spi2, TYPE_SIFIVE_SPI); 796 object_initialize_child(obj, "pwm0", &s->pwm[0], TYPE_SIFIVE_PWM); 797 object_initialize_child(obj, "pwm1", &s->pwm[1], TYPE_SIFIVE_PWM); 798 } 799 800 static void sifive_u_soc_realize(DeviceState *dev, Error **errp) 801 { 802 MachineState *ms = MACHINE(qdev_get_machine()); 803 SiFiveUSoCState *s = RISCV_U_SOC(dev); 804 const MemMapEntry *memmap = sifive_u_memmap; 805 MemoryRegion *system_memory = get_system_memory(); 806 MemoryRegion *mask_rom = g_new(MemoryRegion, 1); 807 MemoryRegion *l2lim_mem = g_new(MemoryRegion, 1); 808 char *plic_hart_config; 809 int i, j; 810 NICInfo *nd = &nd_table[0]; 811 812 qdev_prop_set_uint32(DEVICE(&s->u_cpus), "num-harts", ms->smp.cpus - 1); 813 qdev_prop_set_uint32(DEVICE(&s->u_cpus), "hartid-base", 1); 814 qdev_prop_set_string(DEVICE(&s->u_cpus), "cpu-type", s->cpu_type); 815 qdev_prop_set_uint64(DEVICE(&s->u_cpus), "resetvec", 0x1004); 816 817 sysbus_realize(SYS_BUS_DEVICE(&s->e_cpus), &error_fatal); 818 sysbus_realize(SYS_BUS_DEVICE(&s->u_cpus), &error_fatal); 819 /* 820 * The cluster must be realized after the RISC-V hart array container, 821 * as the container's CPU object is only created on realize, and the 822 * CPU must exist and have been parented into the cluster before the 823 * cluster is realized. 824 */ 825 qdev_realize(DEVICE(&s->e_cluster), NULL, &error_abort); 826 qdev_realize(DEVICE(&s->u_cluster), NULL, &error_abort); 827 828 /* boot rom */ 829 memory_region_init_rom(mask_rom, OBJECT(dev), "riscv.sifive.u.mrom", 830 memmap[SIFIVE_U_DEV_MROM].size, &error_fatal); 831 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_MROM].base, 832 mask_rom); 833 834 /* 835 * Add L2-LIM at reset size. 836 * This should be reduced in size as the L2 Cache Controller WayEnable 837 * register is incremented. Unfortunately I don't see a nice (or any) way 838 * to handle reducing or blocking out the L2 LIM while still allowing it 839 * be re returned to all enabled after a reset. For the time being, just 840 * leave it enabled all the time. This won't break anything, but will be 841 * too generous to misbehaving guests. 842 */ 843 memory_region_init_ram(l2lim_mem, NULL, "riscv.sifive.u.l2lim", 844 memmap[SIFIVE_U_DEV_L2LIM].size, &error_fatal); 845 memory_region_add_subregion(system_memory, memmap[SIFIVE_U_DEV_L2LIM].base, 846 l2lim_mem); 847 848 /* create PLIC hart topology configuration string */ 849 plic_hart_config = riscv_plic_hart_config_string(ms->smp.cpus); 850 851 /* MMIO */ 852 s->plic = sifive_plic_create(memmap[SIFIVE_U_DEV_PLIC].base, 853 plic_hart_config, ms->smp.cpus, 0, 854 SIFIVE_U_PLIC_NUM_SOURCES, 855 SIFIVE_U_PLIC_NUM_PRIORITIES, 856 SIFIVE_U_PLIC_PRIORITY_BASE, 857 SIFIVE_U_PLIC_PENDING_BASE, 858 SIFIVE_U_PLIC_ENABLE_BASE, 859 SIFIVE_U_PLIC_ENABLE_STRIDE, 860 SIFIVE_U_PLIC_CONTEXT_BASE, 861 SIFIVE_U_PLIC_CONTEXT_STRIDE, 862 memmap[SIFIVE_U_DEV_PLIC].size); 863 g_free(plic_hart_config); 864 sifive_uart_create(system_memory, memmap[SIFIVE_U_DEV_UART0].base, 865 serial_hd(0), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART0_IRQ)); 866 sifive_uart_create(system_memory, memmap[SIFIVE_U_DEV_UART1].base, 867 serial_hd(1), qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_UART1_IRQ)); 868 riscv_aclint_swi_create(memmap[SIFIVE_U_DEV_CLINT].base, 0, 869 ms->smp.cpus, false); 870 riscv_aclint_mtimer_create(memmap[SIFIVE_U_DEV_CLINT].base + 871 RISCV_ACLINT_SWI_SIZE, 872 RISCV_ACLINT_DEFAULT_MTIMER_SIZE, 0, ms->smp.cpus, 873 RISCV_ACLINT_DEFAULT_MTIMECMP, RISCV_ACLINT_DEFAULT_MTIME, 874 CLINT_TIMEBASE_FREQ, false); 875 876 if (!sysbus_realize(SYS_BUS_DEVICE(&s->prci), errp)) { 877 return; 878 } 879 sysbus_mmio_map(SYS_BUS_DEVICE(&s->prci), 0, memmap[SIFIVE_U_DEV_PRCI].base); 880 881 qdev_prop_set_uint32(DEVICE(&s->gpio), "ngpio", 16); 882 if (!sysbus_realize(SYS_BUS_DEVICE(&s->gpio), errp)) { 883 return; 884 } 885 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gpio), 0, memmap[SIFIVE_U_DEV_GPIO].base); 886 887 /* Pass all GPIOs to the SOC layer so they are available to the board */ 888 qdev_pass_gpios(DEVICE(&s->gpio), dev, NULL); 889 890 /* Connect GPIO interrupts to the PLIC */ 891 for (i = 0; i < 16; i++) { 892 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gpio), i, 893 qdev_get_gpio_in(DEVICE(s->plic), 894 SIFIVE_U_GPIO_IRQ0 + i)); 895 } 896 897 /* PDMA */ 898 sysbus_realize(SYS_BUS_DEVICE(&s->dma), errp); 899 sysbus_mmio_map(SYS_BUS_DEVICE(&s->dma), 0, memmap[SIFIVE_U_DEV_PDMA].base); 900 901 /* Connect PDMA interrupts to the PLIC */ 902 for (i = 0; i < SIFIVE_PDMA_IRQS; i++) { 903 sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), i, 904 qdev_get_gpio_in(DEVICE(s->plic), 905 SIFIVE_U_PDMA_IRQ0 + i)); 906 } 907 908 qdev_prop_set_uint32(DEVICE(&s->otp), "serial", s->serial); 909 if (!sysbus_realize(SYS_BUS_DEVICE(&s->otp), errp)) { 910 return; 911 } 912 sysbus_mmio_map(SYS_BUS_DEVICE(&s->otp), 0, memmap[SIFIVE_U_DEV_OTP].base); 913 914 /* FIXME use qdev NIC properties instead of nd_table[] */ 915 if (nd->used) { 916 qemu_check_nic_model(nd, TYPE_CADENCE_GEM); 917 qdev_set_nic_properties(DEVICE(&s->gem), nd); 918 } 919 object_property_set_int(OBJECT(&s->gem), "revision", GEM_REVISION, 920 &error_abort); 921 if (!sysbus_realize(SYS_BUS_DEVICE(&s->gem), errp)) { 922 return; 923 } 924 sysbus_mmio_map(SYS_BUS_DEVICE(&s->gem), 0, memmap[SIFIVE_U_DEV_GEM].base); 925 sysbus_connect_irq(SYS_BUS_DEVICE(&s->gem), 0, 926 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_GEM_IRQ)); 927 928 /* PWM */ 929 for (i = 0; i < 2; i++) { 930 if (!sysbus_realize(SYS_BUS_DEVICE(&s->pwm[i]), errp)) { 931 return; 932 } 933 sysbus_mmio_map(SYS_BUS_DEVICE(&s->pwm[i]), 0, 934 memmap[SIFIVE_U_DEV_PWM0].base + (0x1000 * i)); 935 936 /* Connect PWM interrupts to the PLIC */ 937 for (j = 0; j < SIFIVE_PWM_IRQS; j++) { 938 sysbus_connect_irq(SYS_BUS_DEVICE(&s->pwm[i]), j, 939 qdev_get_gpio_in(DEVICE(s->plic), 940 SIFIVE_U_PWM0_IRQ0 + (i * 4) + j)); 941 } 942 } 943 944 create_unimplemented_device("riscv.sifive.u.gem-mgmt", 945 memmap[SIFIVE_U_DEV_GEM_MGMT].base, memmap[SIFIVE_U_DEV_GEM_MGMT].size); 946 947 create_unimplemented_device("riscv.sifive.u.dmc", 948 memmap[SIFIVE_U_DEV_DMC].base, memmap[SIFIVE_U_DEV_DMC].size); 949 950 create_unimplemented_device("riscv.sifive.u.l2cc", 951 memmap[SIFIVE_U_DEV_L2CC].base, memmap[SIFIVE_U_DEV_L2CC].size); 952 953 sysbus_realize(SYS_BUS_DEVICE(&s->spi0), errp); 954 sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi0), 0, 955 memmap[SIFIVE_U_DEV_QSPI0].base); 956 sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi0), 0, 957 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_QSPI0_IRQ)); 958 sysbus_realize(SYS_BUS_DEVICE(&s->spi2), errp); 959 sysbus_mmio_map(SYS_BUS_DEVICE(&s->spi2), 0, 960 memmap[SIFIVE_U_DEV_QSPI2].base); 961 sysbus_connect_irq(SYS_BUS_DEVICE(&s->spi2), 0, 962 qdev_get_gpio_in(DEVICE(s->plic), SIFIVE_U_QSPI2_IRQ)); 963 } 964 965 static Property sifive_u_soc_props[] = { 966 DEFINE_PROP_UINT32("serial", SiFiveUSoCState, serial, OTP_SERIAL), 967 DEFINE_PROP_STRING("cpu-type", SiFiveUSoCState, cpu_type), 968 DEFINE_PROP_END_OF_LIST() 969 }; 970 971 static void sifive_u_soc_class_init(ObjectClass *oc, void *data) 972 { 973 DeviceClass *dc = DEVICE_CLASS(oc); 974 975 device_class_set_props(dc, sifive_u_soc_props); 976 dc->realize = sifive_u_soc_realize; 977 /* Reason: Uses serial_hds in realize function, thus can't be used twice */ 978 dc->user_creatable = false; 979 } 980 981 static const TypeInfo sifive_u_soc_type_info = { 982 .name = TYPE_RISCV_U_SOC, 983 .parent = TYPE_DEVICE, 984 .instance_size = sizeof(SiFiveUSoCState), 985 .instance_init = sifive_u_soc_instance_init, 986 .class_init = sifive_u_soc_class_init, 987 }; 988 989 static void sifive_u_soc_register_types(void) 990 { 991 type_register_static(&sifive_u_soc_type_info); 992 } 993 994 type_init(sifive_u_soc_register_types) 995