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
105static uint8_t chipid_and_omr[] = { 0x11, 0x02, 0x21, 0x43,
106 0x09, 0x00, 0x00, 0x00 };
107
108static 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
115static void exynos4210_chipid_and_omr_write(void *opaque, hwaddr offset,
116 uint64_t value, unsigned size)
117{
118 return;
119}
120
121static 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
130void 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
163static uint64_t exynos4210_calc_affinity(int cpu)
164{
165 /* Exynos4210 has 0x9 as cluster ID */
166 return (0x9 << ARM_AFF1_SHIFT) | cpu;
167}
168
169static 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
182static 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
442static void exynos4210_class_init(ObjectClass *klass, void *data)
443{
444 DeviceClass *dc = DEVICE_CLASS(klass);
445
446 dc->realize = exynos4210_realize;
447}
448
449static 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
456static void exynos4210_register_types(void)
457{
458 type_register_static(&exynos4210_info);
459}
460
461type_init(exynos4210_register_types)
462