1 /* 2 * Samsung exynos4210 SoC emulation 3 * 4 * Copyright (c) 2011 Samsung Electronics Co., Ltd. All rights reserved. 5 * Maksim Kozlov <m.kozlov@samsung.com> 6 * Evgeny Voevodin <e.voevodin@samsung.com> 7 * Igor Mitsyanko <i.mitsyanko@samsung.com> 8 * 9 * This program is free software; you can redistribute it and/or modify it 10 * under the terms of the GNU General Public License as published by the 11 * Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, but WITHOUT 15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 17 * for more details. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, see <http://www.gnu.org/licenses/>. 21 * 22 */ 23 24 #include "qemu/osdep.h" 25 #include "qapi/error.h" 26 #include "qemu/log.h" 27 #include "cpu.h" 28 #include "hw/cpu/a9mpcore.h" 29 #include "hw/irq.h" 30 #include "sysemu/blockdev.h" 31 #include "sysemu/sysemu.h" 32 #include "hw/sysbus.h" 33 #include "hw/arm/boot.h" 34 #include "hw/loader.h" 35 #include "hw/qdev-properties.h" 36 #include "hw/arm/exynos4210.h" 37 #include "hw/sd/sdhci.h" 38 #include "hw/usb/hcd-ehci.h" 39 40 #define EXYNOS4210_CHIPID_ADDR 0x10000000 41 42 /* PWM */ 43 #define EXYNOS4210_PWM_BASE_ADDR 0x139D0000 44 45 /* RTC */ 46 #define EXYNOS4210_RTC_BASE_ADDR 0x10070000 47 48 /* MCT */ 49 #define EXYNOS4210_MCT_BASE_ADDR 0x10050000 50 51 /* I2C */ 52 #define EXYNOS4210_I2C_SHIFT 0x00010000 53 #define EXYNOS4210_I2C_BASE_ADDR 0x13860000 54 /* Interrupt Group of External Interrupt Combiner for I2C */ 55 #define EXYNOS4210_I2C_INTG 27 56 #define EXYNOS4210_HDMI_INTG 16 57 58 /* UART's definitions */ 59 #define EXYNOS4210_UART0_BASE_ADDR 0x13800000 60 #define EXYNOS4210_UART1_BASE_ADDR 0x13810000 61 #define EXYNOS4210_UART2_BASE_ADDR 0x13820000 62 #define EXYNOS4210_UART3_BASE_ADDR 0x13830000 63 #define EXYNOS4210_UART0_FIFO_SIZE 256 64 #define EXYNOS4210_UART1_FIFO_SIZE 64 65 #define EXYNOS4210_UART2_FIFO_SIZE 16 66 #define EXYNOS4210_UART3_FIFO_SIZE 16 67 /* Interrupt Group of External Interrupt Combiner for UART */ 68 #define EXYNOS4210_UART_INT_GRP 26 69 70 /* External GIC */ 71 #define EXYNOS4210_EXT_GIC_CPU_BASE_ADDR 0x10480000 72 #define EXYNOS4210_EXT_GIC_DIST_BASE_ADDR 0x10490000 73 74 /* Combiner */ 75 #define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000 76 #define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000 77 78 /* SD/MMC host controllers */ 79 #define EXYNOS4210_SDHCI_CAPABILITIES 0x05E80080 80 #define EXYNOS4210_SDHCI_BASE_ADDR 0x12510000 81 #define EXYNOS4210_SDHCI_ADDR(n) (EXYNOS4210_SDHCI_BASE_ADDR + \ 82 0x00010000 * (n)) 83 #define EXYNOS4210_SDHCI_NUMBER 4 84 85 /* PMU SFR base address */ 86 #define EXYNOS4210_PMU_BASE_ADDR 0x10020000 87 88 /* Clock controller SFR base address */ 89 #define EXYNOS4210_CLK_BASE_ADDR 0x10030000 90 91 /* PRNG/HASH SFR base address */ 92 #define EXYNOS4210_RNG_BASE_ADDR 0x10830400 93 94 /* Display controllers (FIMD) */ 95 #define EXYNOS4210_FIMD0_BASE_ADDR 0x11C00000 96 97 /* EHCI */ 98 #define EXYNOS4210_EHCI_BASE_ADDR 0x12580000 99 100 /* DMA */ 101 #define EXYNOS4210_PL330_BASE0_ADDR 0x12680000 102 #define EXYNOS4210_PL330_BASE1_ADDR 0x12690000 103 #define EXYNOS4210_PL330_BASE2_ADDR 0x12850000 104 105 static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43, 106 0x09, 0x00, 0x00, 0x00 }; 107 108 static uint64_t exynos4210_chipid_and_omr_read(void *opaque, hwaddr offset, 109 unsigned size) 110 { 111 assert(offset < sizeof(chipid_and_omr)); 112 return chipid_and_omr[offset]; 113 } 114 115 static void exynos4210_chipid_and_omr_write(void *opaque, hwaddr offset, 116 uint64_t value, unsigned size) 117 { 118 return; 119 } 120 121 static const MemoryRegionOps exynos4210_chipid_and_omr_ops = { 122 .read = exynos4210_chipid_and_omr_read, 123 .write = exynos4210_chipid_and_omr_write, 124 .endianness = DEVICE_NATIVE_ENDIAN, 125 .impl = { 126 .max_access_size = 1, 127 } 128 }; 129 130 void exynos4210_write_secondary(ARMCPU *cpu, 131 const struct arm_boot_info *info) 132 { 133 int n; 134 uint32_t smpboot[] = { 135 0xe59f3034, /* ldr r3, External gic_cpu_if */ 136 0xe59f2034, /* ldr r2, Internal gic_cpu_if */ 137 0xe59f0034, /* ldr r0, startaddr */ 138 0xe3a01001, /* mov r1, #1 */ 139 0xe5821000, /* str r1, [r2] */ 140 0xe5831000, /* str r1, [r3] */ 141 0xe3a010ff, /* mov r1, #0xff */ 142 0xe5821004, /* str r1, [r2, #4] */ 143 0xe5831004, /* str r1, [r3, #4] */ 144 0xf57ff04f, /* dsb */ 145 0xe320f003, /* wfi */ 146 0xe5901000, /* ldr r1, [r0] */ 147 0xe1110001, /* tst r1, r1 */ 148 0x0afffffb, /* beq <wfi> */ 149 0xe12fff11, /* bx r1 */ 150 EXYNOS4210_EXT_GIC_CPU_BASE_ADDR, 151 0, /* gic_cpu_if: base address of Internal GIC CPU interface */ 152 0 /* bootreg: Boot register address is held here */ 153 }; 154 smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr; 155 smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr; 156 for (n = 0; n < ARRAY_SIZE(smpboot); n++) { 157 smpboot[n] = tswap32(smpboot[n]); 158 } 159 rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), 160 info->smp_loader_start); 161 } 162 163 static uint64_t exynos4210_calc_affinity(int cpu) 164 { 165 /* Exynos4210 has 0x9 as cluster ID */ 166 return (0x9 << ARM_AFF1_SHIFT) | cpu; 167 } 168 169 static void pl330_create(uint32_t base, qemu_irq irq, int nreq) 170 { 171 SysBusDevice *busdev; 172 DeviceState *dev; 173 174 dev = qdev_create(NULL, "pl330"); 175 qdev_prop_set_uint8(dev, "num_periph_req", nreq); 176 qdev_init_nofail(dev); 177 busdev = SYS_BUS_DEVICE(dev); 178 sysbus_mmio_map(busdev, 0, base); 179 sysbus_connect_irq(busdev, 0, irq); 180 } 181 182 static void exynos4210_realize(DeviceState *socdev, Error **errp) 183 { 184 Exynos4210State *s = EXYNOS4210_SOC(socdev); 185 MemoryRegion *system_mem = get_system_memory(); 186 qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS]; 187 SysBusDevice *busdev; 188 DeviceState *dev; 189 int i, n; 190 191 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 192 Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9")); 193 194 /* By default A9 CPUs have EL3 enabled. This board does not currently 195 * support EL3 so the CPU EL3 property is disabled before realization. 196 */ 197 if (object_property_find(cpuobj, "has_el3", NULL)) { 198 object_property_set_bool(cpuobj, false, "has_el3", &error_fatal); 199 } 200 201 s->cpu[n] = ARM_CPU(cpuobj); 202 object_property_set_int(cpuobj, exynos4210_calc_affinity(n), 203 "mp-affinity", &error_abort); 204 object_property_set_int(cpuobj, EXYNOS4210_SMP_PRIVATE_BASE_ADDR, 205 "reset-cbar", &error_abort); 206 object_property_set_bool(cpuobj, true, "realized", &error_fatal); 207 } 208 209 /*** IRQs ***/ 210 211 s->irq_table = exynos4210_init_irq(&s->irqs); 212 213 /* IRQ Gate */ 214 for (i = 0; i < EXYNOS4210_NCPUS; i++) { 215 dev = qdev_create(NULL, "exynos4210.irq_gate"); 216 qdev_prop_set_uint32(dev, "n_in", EXYNOS4210_IRQ_GATE_NINPUTS); 217 qdev_init_nofail(dev); 218 /* Get IRQ Gate input in gate_irq */ 219 for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) { 220 gate_irq[i][n] = qdev_get_gpio_in(dev, n); 221 } 222 busdev = SYS_BUS_DEVICE(dev); 223 224 /* Connect IRQ Gate output to CPU's IRQ line */ 225 sysbus_connect_irq(busdev, 0, 226 qdev_get_gpio_in(DEVICE(s->cpu[i]), ARM_CPU_IRQ)); 227 } 228 229 /* Private memory region and Internal GIC */ 230 dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV); 231 qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); 232 qdev_init_nofail(dev); 233 busdev = SYS_BUS_DEVICE(dev); 234 sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR); 235 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 236 sysbus_connect_irq(busdev, n, gate_irq[n][0]); 237 } 238 for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) { 239 s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n); 240 } 241 242 /* Cache controller */ 243 sysbus_create_simple("l2x0", EXYNOS4210_L2X0_BASE_ADDR, NULL); 244 245 /* External GIC */ 246 dev = qdev_create(NULL, "exynos4210.gic"); 247 qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); 248 qdev_init_nofail(dev); 249 busdev = SYS_BUS_DEVICE(dev); 250 /* Map CPU interface */ 251 sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_GIC_CPU_BASE_ADDR); 252 /* Map Distributer interface */ 253 sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR); 254 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 255 sysbus_connect_irq(busdev, n, gate_irq[n][1]); 256 } 257 for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) { 258 s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n); 259 } 260 261 /* Internal Interrupt Combiner */ 262 dev = qdev_create(NULL, "exynos4210.combiner"); 263 qdev_init_nofail(dev); 264 busdev = SYS_BUS_DEVICE(dev); 265 for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { 266 sysbus_connect_irq(busdev, n, s->irqs.int_gic_irq[n]); 267 } 268 exynos4210_combiner_get_gpioin(&s->irqs, dev, 0); 269 sysbus_mmio_map(busdev, 0, EXYNOS4210_INT_COMBINER_BASE_ADDR); 270 271 /* External Interrupt Combiner */ 272 dev = qdev_create(NULL, "exynos4210.combiner"); 273 qdev_prop_set_uint32(dev, "external", 1); 274 qdev_init_nofail(dev); 275 busdev = SYS_BUS_DEVICE(dev); 276 for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { 277 sysbus_connect_irq(busdev, n, s->irqs.ext_gic_irq[n]); 278 } 279 exynos4210_combiner_get_gpioin(&s->irqs, dev, 1); 280 sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_COMBINER_BASE_ADDR); 281 282 /* Initialize board IRQs. */ 283 exynos4210_init_board_irqs(&s->irqs); 284 285 /*** Memory ***/ 286 287 /* Chip-ID and OMR */ 288 memory_region_init_io(&s->chipid_mem, NULL, &exynos4210_chipid_and_omr_ops, 289 NULL, "exynos4210.chipid", sizeof(chipid_and_omr)); 290 memory_region_add_subregion(system_mem, EXYNOS4210_CHIPID_ADDR, 291 &s->chipid_mem); 292 293 /* Internal ROM */ 294 memory_region_init_ram(&s->irom_mem, NULL, "exynos4210.irom", 295 EXYNOS4210_IROM_SIZE, &error_fatal); 296 memory_region_set_readonly(&s->irom_mem, true); 297 memory_region_add_subregion(system_mem, EXYNOS4210_IROM_BASE_ADDR, 298 &s->irom_mem); 299 /* mirror of iROM */ 300 memory_region_init_alias(&s->irom_alias_mem, NULL, "exynos4210.irom_alias", 301 &s->irom_mem, 302 0, 303 EXYNOS4210_IROM_SIZE); 304 memory_region_set_readonly(&s->irom_alias_mem, true); 305 memory_region_add_subregion(system_mem, EXYNOS4210_IROM_MIRROR_BASE_ADDR, 306 &s->irom_alias_mem); 307 308 /* Internal RAM */ 309 memory_region_init_ram(&s->iram_mem, NULL, "exynos4210.iram", 310 EXYNOS4210_IRAM_SIZE, &error_fatal); 311 memory_region_add_subregion(system_mem, EXYNOS4210_IRAM_BASE_ADDR, 312 &s->iram_mem); 313 314 /* PMU. 315 * The only reason of existence at the moment is that secondary CPU boot 316 * loader uses PMU INFORM5 register as a holding pen. 317 */ 318 sysbus_create_simple("exynos4210.pmu", EXYNOS4210_PMU_BASE_ADDR, NULL); 319 320 sysbus_create_simple("exynos4210.clk", EXYNOS4210_CLK_BASE_ADDR, NULL); 321 sysbus_create_simple("exynos4210.rng", EXYNOS4210_RNG_BASE_ADDR, NULL); 322 323 /* PWM */ 324 sysbus_create_varargs("exynos4210.pwm", EXYNOS4210_PWM_BASE_ADDR, 325 s->irq_table[exynos4210_get_irq(22, 0)], 326 s->irq_table[exynos4210_get_irq(22, 1)], 327 s->irq_table[exynos4210_get_irq(22, 2)], 328 s->irq_table[exynos4210_get_irq(22, 3)], 329 s->irq_table[exynos4210_get_irq(22, 4)], 330 NULL); 331 /* RTC */ 332 sysbus_create_varargs("exynos4210.rtc", EXYNOS4210_RTC_BASE_ADDR, 333 s->irq_table[exynos4210_get_irq(23, 0)], 334 s->irq_table[exynos4210_get_irq(23, 1)], 335 NULL); 336 337 /* Multi Core Timer */ 338 dev = qdev_create(NULL, "exynos4210.mct"); 339 qdev_init_nofail(dev); 340 busdev = SYS_BUS_DEVICE(dev); 341 for (n = 0; n < 4; n++) { 342 /* Connect global timer interrupts to Combiner gpio_in */ 343 sysbus_connect_irq(busdev, n, 344 s->irq_table[exynos4210_get_irq(1, 4 + n)]); 345 } 346 /* Connect local timer interrupts to Combiner gpio_in */ 347 sysbus_connect_irq(busdev, 4, 348 s->irq_table[exynos4210_get_irq(51, 0)]); 349 sysbus_connect_irq(busdev, 5, 350 s->irq_table[exynos4210_get_irq(35, 3)]); 351 sysbus_mmio_map(busdev, 0, EXYNOS4210_MCT_BASE_ADDR); 352 353 /*** I2C ***/ 354 for (n = 0; n < EXYNOS4210_I2C_NUMBER; n++) { 355 uint32_t addr = EXYNOS4210_I2C_BASE_ADDR + EXYNOS4210_I2C_SHIFT * n; 356 qemu_irq i2c_irq; 357 358 if (n < 8) { 359 i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_I2C_INTG, n)]; 360 } else { 361 i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_HDMI_INTG, 1)]; 362 } 363 364 dev = qdev_create(NULL, "exynos4210.i2c"); 365 qdev_init_nofail(dev); 366 busdev = SYS_BUS_DEVICE(dev); 367 sysbus_connect_irq(busdev, 0, i2c_irq); 368 sysbus_mmio_map(busdev, 0, addr); 369 s->i2c_if[n] = (I2CBus *)qdev_get_child_bus(dev, "i2c"); 370 } 371 372 373 /*** UARTs ***/ 374 exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR, 375 EXYNOS4210_UART0_FIFO_SIZE, 0, serial_hd(0), 376 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 0)]); 377 378 exynos4210_uart_create(EXYNOS4210_UART1_BASE_ADDR, 379 EXYNOS4210_UART1_FIFO_SIZE, 1, serial_hd(1), 380 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 1)]); 381 382 exynos4210_uart_create(EXYNOS4210_UART2_BASE_ADDR, 383 EXYNOS4210_UART2_FIFO_SIZE, 2, serial_hd(2), 384 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 2)]); 385 386 exynos4210_uart_create(EXYNOS4210_UART3_BASE_ADDR, 387 EXYNOS4210_UART3_FIFO_SIZE, 3, serial_hd(3), 388 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]); 389 390 /*** SD/MMC host controllers ***/ 391 for (n = 0; n < EXYNOS4210_SDHCI_NUMBER; n++) { 392 DeviceState *carddev; 393 BlockBackend *blk; 394 DriveInfo *di; 395 396 /* Compatible with: 397 * - SD Host Controller Specification Version 2.0 398 * - SDIO Specification Version 2.0 399 * - MMC Specification Version 4.3 400 * - SDMA 401 * - ADMA2 402 * 403 * As this part of the Exynos4210 is not publically available, 404 * we used the "HS-MMC Controller S3C2416X RISC Microprocessor" 405 * public datasheet which is very similar (implementing 406 * MMC Specification Version 4.0 being the only difference noted) 407 */ 408 dev = qdev_create(NULL, TYPE_SYSBUS_SDHCI); 409 qdev_prop_set_uint64(dev, "capareg", EXYNOS4210_SDHCI_CAPABILITIES); 410 qdev_init_nofail(dev); 411 412 busdev = SYS_BUS_DEVICE(dev); 413 sysbus_mmio_map(busdev, 0, EXYNOS4210_SDHCI_ADDR(n)); 414 sysbus_connect_irq(busdev, 0, s->irq_table[exynos4210_get_irq(29, n)]); 415 416 di = drive_get(IF_SD, 0, n); 417 blk = di ? blk_by_legacy_dinfo(di) : NULL; 418 carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); 419 qdev_prop_set_drive(carddev, "drive", blk, &error_abort); 420 qdev_init_nofail(carddev); 421 } 422 423 /*** Display controller (FIMD) ***/ 424 sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR, 425 s->irq_table[exynos4210_get_irq(11, 0)], 426 s->irq_table[exynos4210_get_irq(11, 1)], 427 s->irq_table[exynos4210_get_irq(11, 2)], 428 NULL); 429 430 sysbus_create_simple(TYPE_EXYNOS4210_EHCI, EXYNOS4210_EHCI_BASE_ADDR, 431 s->irq_table[exynos4210_get_irq(28, 3)]); 432 433 /*** DMA controllers ***/ 434 pl330_create(EXYNOS4210_PL330_BASE0_ADDR, 435 qemu_irq_invert(s->irq_table[exynos4210_get_irq(35, 1)]), 32); 436 pl330_create(EXYNOS4210_PL330_BASE1_ADDR, 437 qemu_irq_invert(s->irq_table[exynos4210_get_irq(36, 1)]), 32); 438 pl330_create(EXYNOS4210_PL330_BASE2_ADDR, 439 qemu_irq_invert(s->irq_table[exynos4210_get_irq(34, 1)]), 1); 440 } 441 442 static void exynos4210_class_init(ObjectClass *klass, void *data) 443 { 444 DeviceClass *dc = DEVICE_CLASS(klass); 445 446 dc->realize = exynos4210_realize; 447 } 448 449 static const TypeInfo exynos4210_info = { 450 .name = TYPE_EXYNOS4210_SOC, 451 .parent = TYPE_SYS_BUS_DEVICE, 452 .instance_size = sizeof(Exynos4210State), 453 .class_init = exynos4210_class_init, 454 }; 455 456 static void exynos4210_register_types(void) 457 { 458 type_register_static(&exynos4210_info); 459 } 460 461 type_init(exynos4210_register_types) 462