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-common.h" 27 #include "qemu/log.h" 28 #include "cpu.h" 29 #include "hw/cpu/a9mpcore.h" 30 #include "hw/boards.h" 31 #include "sysemu/sysemu.h" 32 #include "hw/sysbus.h" 33 #include "hw/arm/arm.h" 34 #include "hw/loader.h" 35 #include "hw/arm/exynos4210.h" 36 #include "hw/sd/sdhci.h" 37 #include "hw/usb/hcd-ehci.h" 38 39 #define EXYNOS4210_CHIPID_ADDR 0x10000000 40 41 /* PWM */ 42 #define EXYNOS4210_PWM_BASE_ADDR 0x139D0000 43 44 /* RTC */ 45 #define EXYNOS4210_RTC_BASE_ADDR 0x10070000 46 47 /* MCT */ 48 #define EXYNOS4210_MCT_BASE_ADDR 0x10050000 49 50 /* I2C */ 51 #define EXYNOS4210_I2C_SHIFT 0x00010000 52 #define EXYNOS4210_I2C_BASE_ADDR 0x13860000 53 /* Interrupt Group of External Interrupt Combiner for I2C */ 54 #define EXYNOS4210_I2C_INTG 27 55 #define EXYNOS4210_HDMI_INTG 16 56 57 /* UART's definitions */ 58 #define EXYNOS4210_UART0_BASE_ADDR 0x13800000 59 #define EXYNOS4210_UART1_BASE_ADDR 0x13810000 60 #define EXYNOS4210_UART2_BASE_ADDR 0x13820000 61 #define EXYNOS4210_UART3_BASE_ADDR 0x13830000 62 #define EXYNOS4210_UART0_FIFO_SIZE 256 63 #define EXYNOS4210_UART1_FIFO_SIZE 64 64 #define EXYNOS4210_UART2_FIFO_SIZE 16 65 #define EXYNOS4210_UART3_FIFO_SIZE 16 66 /* Interrupt Group of External Interrupt Combiner for UART */ 67 #define EXYNOS4210_UART_INT_GRP 26 68 69 /* External GIC */ 70 #define EXYNOS4210_EXT_GIC_CPU_BASE_ADDR 0x10480000 71 #define EXYNOS4210_EXT_GIC_DIST_BASE_ADDR 0x10490000 72 73 /* Combiner */ 74 #define EXYNOS4210_EXT_COMBINER_BASE_ADDR 0x10440000 75 #define EXYNOS4210_INT_COMBINER_BASE_ADDR 0x10448000 76 77 /* SD/MMC host controllers */ 78 #define EXYNOS4210_SDHCI_CAPABILITIES 0x05E80080 79 #define EXYNOS4210_SDHCI_BASE_ADDR 0x12510000 80 #define EXYNOS4210_SDHCI_ADDR(n) (EXYNOS4210_SDHCI_BASE_ADDR + \ 81 0x00010000 * (n)) 82 #define EXYNOS4210_SDHCI_NUMBER 4 83 84 /* PMU SFR base address */ 85 #define EXYNOS4210_PMU_BASE_ADDR 0x10020000 86 87 /* Clock controller SFR base address */ 88 #define EXYNOS4210_CLK_BASE_ADDR 0x10030000 89 90 /* PRNG/HASH SFR base address */ 91 #define EXYNOS4210_RNG_BASE_ADDR 0x10830400 92 93 /* Display controllers (FIMD) */ 94 #define EXYNOS4210_FIMD0_BASE_ADDR 0x11C00000 95 96 /* EHCI */ 97 #define EXYNOS4210_EHCI_BASE_ADDR 0x12580000 98 99 static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43, 100 0x09, 0x00, 0x00, 0x00 }; 101 102 static uint64_t exynos4210_chipid_and_omr_read(void *opaque, hwaddr offset, 103 unsigned size) 104 { 105 assert(offset < sizeof(chipid_and_omr)); 106 return chipid_and_omr[offset]; 107 } 108 109 static void exynos4210_chipid_and_omr_write(void *opaque, hwaddr offset, 110 uint64_t value, unsigned size) 111 { 112 return; 113 } 114 115 static const MemoryRegionOps exynos4210_chipid_and_omr_ops = { 116 .read = exynos4210_chipid_and_omr_read, 117 .write = exynos4210_chipid_and_omr_write, 118 .endianness = DEVICE_NATIVE_ENDIAN, 119 .impl = { 120 .max_access_size = 1, 121 } 122 }; 123 124 void exynos4210_write_secondary(ARMCPU *cpu, 125 const struct arm_boot_info *info) 126 { 127 int n; 128 uint32_t smpboot[] = { 129 0xe59f3034, /* ldr r3, External gic_cpu_if */ 130 0xe59f2034, /* ldr r2, Internal gic_cpu_if */ 131 0xe59f0034, /* ldr r0, startaddr */ 132 0xe3a01001, /* mov r1, #1 */ 133 0xe5821000, /* str r1, [r2] */ 134 0xe5831000, /* str r1, [r3] */ 135 0xe3a010ff, /* mov r1, #0xff */ 136 0xe5821004, /* str r1, [r2, #4] */ 137 0xe5831004, /* str r1, [r3, #4] */ 138 0xf57ff04f, /* dsb */ 139 0xe320f003, /* wfi */ 140 0xe5901000, /* ldr r1, [r0] */ 141 0xe1110001, /* tst r1, r1 */ 142 0x0afffffb, /* beq <wfi> */ 143 0xe12fff11, /* bx r1 */ 144 EXYNOS4210_EXT_GIC_CPU_BASE_ADDR, 145 0, /* gic_cpu_if: base address of Internal GIC CPU interface */ 146 0 /* bootreg: Boot register address is held here */ 147 }; 148 smpboot[ARRAY_SIZE(smpboot) - 1] = info->smp_bootreg_addr; 149 smpboot[ARRAY_SIZE(smpboot) - 2] = info->gic_cpu_if_addr; 150 for (n = 0; n < ARRAY_SIZE(smpboot); n++) { 151 smpboot[n] = tswap32(smpboot[n]); 152 } 153 rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), 154 info->smp_loader_start); 155 } 156 157 static uint64_t exynos4210_calc_affinity(int cpu) 158 { 159 /* Exynos4210 has 0x9 as cluster ID */ 160 return (0x9 << ARM_AFF1_SHIFT) | cpu; 161 } 162 163 Exynos4210State *exynos4210_init(MemoryRegion *system_mem) 164 { 165 Exynos4210State *s = g_new0(Exynos4210State, 1); 166 qemu_irq gate_irq[EXYNOS4210_NCPUS][EXYNOS4210_IRQ_GATE_NINPUTS]; 167 SysBusDevice *busdev; 168 DeviceState *dev; 169 int i, n; 170 171 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 172 Object *cpuobj = object_new(ARM_CPU_TYPE_NAME("cortex-a9")); 173 174 /* By default A9 CPUs have EL3 enabled. This board does not currently 175 * support EL3 so the CPU EL3 property is disabled before realization. 176 */ 177 if (object_property_find(cpuobj, "has_el3", NULL)) { 178 object_property_set_bool(cpuobj, false, "has_el3", &error_fatal); 179 } 180 181 s->cpu[n] = ARM_CPU(cpuobj); 182 object_property_set_int(cpuobj, exynos4210_calc_affinity(n), 183 "mp-affinity", &error_abort); 184 object_property_set_int(cpuobj, EXYNOS4210_SMP_PRIVATE_BASE_ADDR, 185 "reset-cbar", &error_abort); 186 object_property_set_bool(cpuobj, true, "realized", &error_fatal); 187 } 188 189 /*** IRQs ***/ 190 191 s->irq_table = exynos4210_init_irq(&s->irqs); 192 193 /* IRQ Gate */ 194 for (i = 0; i < EXYNOS4210_NCPUS; i++) { 195 dev = qdev_create(NULL, "exynos4210.irq_gate"); 196 qdev_prop_set_uint32(dev, "n_in", EXYNOS4210_IRQ_GATE_NINPUTS); 197 qdev_init_nofail(dev); 198 /* Get IRQ Gate input in gate_irq */ 199 for (n = 0; n < EXYNOS4210_IRQ_GATE_NINPUTS; n++) { 200 gate_irq[i][n] = qdev_get_gpio_in(dev, n); 201 } 202 busdev = SYS_BUS_DEVICE(dev); 203 204 /* Connect IRQ Gate output to CPU's IRQ line */ 205 sysbus_connect_irq(busdev, 0, 206 qdev_get_gpio_in(DEVICE(s->cpu[i]), ARM_CPU_IRQ)); 207 } 208 209 /* Private memory region and Internal GIC */ 210 dev = qdev_create(NULL, TYPE_A9MPCORE_PRIV); 211 qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); 212 qdev_init_nofail(dev); 213 busdev = SYS_BUS_DEVICE(dev); 214 sysbus_mmio_map(busdev, 0, EXYNOS4210_SMP_PRIVATE_BASE_ADDR); 215 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 216 sysbus_connect_irq(busdev, n, gate_irq[n][0]); 217 } 218 for (n = 0; n < EXYNOS4210_INT_GIC_NIRQ; n++) { 219 s->irqs.int_gic_irq[n] = qdev_get_gpio_in(dev, n); 220 } 221 222 /* Cache controller */ 223 sysbus_create_simple("l2x0", EXYNOS4210_L2X0_BASE_ADDR, NULL); 224 225 /* External GIC */ 226 dev = qdev_create(NULL, "exynos4210.gic"); 227 qdev_prop_set_uint32(dev, "num-cpu", EXYNOS4210_NCPUS); 228 qdev_init_nofail(dev); 229 busdev = SYS_BUS_DEVICE(dev); 230 /* Map CPU interface */ 231 sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_GIC_CPU_BASE_ADDR); 232 /* Map Distributer interface */ 233 sysbus_mmio_map(busdev, 1, EXYNOS4210_EXT_GIC_DIST_BASE_ADDR); 234 for (n = 0; n < EXYNOS4210_NCPUS; n++) { 235 sysbus_connect_irq(busdev, n, gate_irq[n][1]); 236 } 237 for (n = 0; n < EXYNOS4210_EXT_GIC_NIRQ; n++) { 238 s->irqs.ext_gic_irq[n] = qdev_get_gpio_in(dev, n); 239 } 240 241 /* Internal Interrupt Combiner */ 242 dev = qdev_create(NULL, "exynos4210.combiner"); 243 qdev_init_nofail(dev); 244 busdev = SYS_BUS_DEVICE(dev); 245 for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { 246 sysbus_connect_irq(busdev, n, s->irqs.int_gic_irq[n]); 247 } 248 exynos4210_combiner_get_gpioin(&s->irqs, dev, 0); 249 sysbus_mmio_map(busdev, 0, EXYNOS4210_INT_COMBINER_BASE_ADDR); 250 251 /* External Interrupt Combiner */ 252 dev = qdev_create(NULL, "exynos4210.combiner"); 253 qdev_prop_set_uint32(dev, "external", 1); 254 qdev_init_nofail(dev); 255 busdev = SYS_BUS_DEVICE(dev); 256 for (n = 0; n < EXYNOS4210_MAX_INT_COMBINER_OUT_IRQ; n++) { 257 sysbus_connect_irq(busdev, n, s->irqs.ext_gic_irq[n]); 258 } 259 exynos4210_combiner_get_gpioin(&s->irqs, dev, 1); 260 sysbus_mmio_map(busdev, 0, EXYNOS4210_EXT_COMBINER_BASE_ADDR); 261 262 /* Initialize board IRQs. */ 263 exynos4210_init_board_irqs(&s->irqs); 264 265 /*** Memory ***/ 266 267 /* Chip-ID and OMR */ 268 memory_region_init_io(&s->chipid_mem, NULL, &exynos4210_chipid_and_omr_ops, 269 NULL, "exynos4210.chipid", sizeof(chipid_and_omr)); 270 memory_region_add_subregion(system_mem, EXYNOS4210_CHIPID_ADDR, 271 &s->chipid_mem); 272 273 /* Internal ROM */ 274 memory_region_init_ram(&s->irom_mem, NULL, "exynos4210.irom", 275 EXYNOS4210_IROM_SIZE, &error_fatal); 276 memory_region_set_readonly(&s->irom_mem, true); 277 memory_region_add_subregion(system_mem, EXYNOS4210_IROM_BASE_ADDR, 278 &s->irom_mem); 279 /* mirror of iROM */ 280 memory_region_init_alias(&s->irom_alias_mem, NULL, "exynos4210.irom_alias", 281 &s->irom_mem, 282 0, 283 EXYNOS4210_IROM_SIZE); 284 memory_region_set_readonly(&s->irom_alias_mem, true); 285 memory_region_add_subregion(system_mem, EXYNOS4210_IROM_MIRROR_BASE_ADDR, 286 &s->irom_alias_mem); 287 288 /* Internal RAM */ 289 memory_region_init_ram(&s->iram_mem, NULL, "exynos4210.iram", 290 EXYNOS4210_IRAM_SIZE, &error_fatal); 291 memory_region_add_subregion(system_mem, EXYNOS4210_IRAM_BASE_ADDR, 292 &s->iram_mem); 293 294 /* PMU. 295 * The only reason of existence at the moment is that secondary CPU boot 296 * loader uses PMU INFORM5 register as a holding pen. 297 */ 298 sysbus_create_simple("exynos4210.pmu", EXYNOS4210_PMU_BASE_ADDR, NULL); 299 300 sysbus_create_simple("exynos4210.clk", EXYNOS4210_CLK_BASE_ADDR, NULL); 301 sysbus_create_simple("exynos4210.rng", EXYNOS4210_RNG_BASE_ADDR, NULL); 302 303 /* PWM */ 304 sysbus_create_varargs("exynos4210.pwm", EXYNOS4210_PWM_BASE_ADDR, 305 s->irq_table[exynos4210_get_irq(22, 0)], 306 s->irq_table[exynos4210_get_irq(22, 1)], 307 s->irq_table[exynos4210_get_irq(22, 2)], 308 s->irq_table[exynos4210_get_irq(22, 3)], 309 s->irq_table[exynos4210_get_irq(22, 4)], 310 NULL); 311 /* RTC */ 312 sysbus_create_varargs("exynos4210.rtc", EXYNOS4210_RTC_BASE_ADDR, 313 s->irq_table[exynos4210_get_irq(23, 0)], 314 s->irq_table[exynos4210_get_irq(23, 1)], 315 NULL); 316 317 /* Multi Core Timer */ 318 dev = qdev_create(NULL, "exynos4210.mct"); 319 qdev_init_nofail(dev); 320 busdev = SYS_BUS_DEVICE(dev); 321 for (n = 0; n < 4; n++) { 322 /* Connect global timer interrupts to Combiner gpio_in */ 323 sysbus_connect_irq(busdev, n, 324 s->irq_table[exynos4210_get_irq(1, 4 + n)]); 325 } 326 /* Connect local timer interrupts to Combiner gpio_in */ 327 sysbus_connect_irq(busdev, 4, 328 s->irq_table[exynos4210_get_irq(51, 0)]); 329 sysbus_connect_irq(busdev, 5, 330 s->irq_table[exynos4210_get_irq(35, 3)]); 331 sysbus_mmio_map(busdev, 0, EXYNOS4210_MCT_BASE_ADDR); 332 333 /*** I2C ***/ 334 for (n = 0; n < EXYNOS4210_I2C_NUMBER; n++) { 335 uint32_t addr = EXYNOS4210_I2C_BASE_ADDR + EXYNOS4210_I2C_SHIFT * n; 336 qemu_irq i2c_irq; 337 338 if (n < 8) { 339 i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_I2C_INTG, n)]; 340 } else { 341 i2c_irq = s->irq_table[exynos4210_get_irq(EXYNOS4210_HDMI_INTG, 1)]; 342 } 343 344 dev = qdev_create(NULL, "exynos4210.i2c"); 345 qdev_init_nofail(dev); 346 busdev = SYS_BUS_DEVICE(dev); 347 sysbus_connect_irq(busdev, 0, i2c_irq); 348 sysbus_mmio_map(busdev, 0, addr); 349 s->i2c_if[n] = (I2CBus *)qdev_get_child_bus(dev, "i2c"); 350 } 351 352 353 /*** UARTs ***/ 354 exynos4210_uart_create(EXYNOS4210_UART0_BASE_ADDR, 355 EXYNOS4210_UART0_FIFO_SIZE, 0, serial_hd(0), 356 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 0)]); 357 358 exynos4210_uart_create(EXYNOS4210_UART1_BASE_ADDR, 359 EXYNOS4210_UART1_FIFO_SIZE, 1, serial_hd(1), 360 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 1)]); 361 362 exynos4210_uart_create(EXYNOS4210_UART2_BASE_ADDR, 363 EXYNOS4210_UART2_FIFO_SIZE, 2, serial_hd(2), 364 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 2)]); 365 366 exynos4210_uart_create(EXYNOS4210_UART3_BASE_ADDR, 367 EXYNOS4210_UART3_FIFO_SIZE, 3, serial_hd(3), 368 s->irq_table[exynos4210_get_irq(EXYNOS4210_UART_INT_GRP, 3)]); 369 370 /*** SD/MMC host controllers ***/ 371 for (n = 0; n < EXYNOS4210_SDHCI_NUMBER; n++) { 372 DeviceState *carddev; 373 BlockBackend *blk; 374 DriveInfo *di; 375 376 /* Compatible with: 377 * - SD Host Controller Specification Version 2.0 378 * - SDIO Specification Version 2.0 379 * - MMC Specification Version 4.3 380 * - SDMA 381 * - ADMA2 382 * 383 * As this part of the Exynos4210 is not publically available, 384 * we used the "HS-MMC Controller S3C2416X RISC Microprocessor" 385 * public datasheet which is very similar (implementing 386 * MMC Specification Version 4.0 being the only difference noted) 387 */ 388 dev = qdev_create(NULL, TYPE_SYSBUS_SDHCI); 389 qdev_prop_set_uint64(dev, "capareg", EXYNOS4210_SDHCI_CAPABILITIES); 390 qdev_init_nofail(dev); 391 392 busdev = SYS_BUS_DEVICE(dev); 393 sysbus_mmio_map(busdev, 0, EXYNOS4210_SDHCI_ADDR(n)); 394 sysbus_connect_irq(busdev, 0, s->irq_table[exynos4210_get_irq(29, n)]); 395 396 di = drive_get(IF_SD, 0, n); 397 blk = di ? blk_by_legacy_dinfo(di) : NULL; 398 carddev = qdev_create(qdev_get_child_bus(dev, "sd-bus"), TYPE_SD_CARD); 399 qdev_prop_set_drive(carddev, "drive", blk, &error_abort); 400 qdev_init_nofail(carddev); 401 } 402 403 /*** Display controller (FIMD) ***/ 404 sysbus_create_varargs("exynos4210.fimd", EXYNOS4210_FIMD0_BASE_ADDR, 405 s->irq_table[exynos4210_get_irq(11, 0)], 406 s->irq_table[exynos4210_get_irq(11, 1)], 407 s->irq_table[exynos4210_get_irq(11, 2)], 408 NULL); 409 410 sysbus_create_simple(TYPE_EXYNOS4210_EHCI, EXYNOS4210_EHCI_BASE_ADDR, 411 s->irq_table[exynos4210_get_irq(28, 3)]); 412 413 return s; 414 } 415