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1 /*
2 * OpenPOWER Palmetto BMC
3 *
4 * Andrew Jeffery <andrew@aj.id.au>
5 *
6 * Copyright 2016 IBM Corp.
7 *
8 * This code is licensed under the GPL version 2 or later. See
9 * the COPYING file in the top-level directory.
10 */
11
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "cpu.h"
15 #include "exec/address-spaces.h"
16 #include "hw/arm/boot.h"
17 #include "hw/arm/aspeed.h"
18 #include "hw/arm/aspeed_soc.h"
19 #include "hw/boards.h"
20 #include "hw/i2c/smbus_eeprom.h"
21 #include "hw/misc/pca9552.h"
22 #include "hw/misc/tmp105.h"
23 #include "hw/qdev-properties.h"
24 #include "qemu/log.h"
25 #include "sysemu/block-backend.h"
26 #include "sysemu/sysemu.h"
27 #include "hw/loader.h"
28 #include "qemu/error-report.h"
29 #include "qemu/units.h"
30
31 static struct arm_boot_info aspeed_board_binfo = {
32 .board_id = -1, /* device-tree-only board */
33 };
34
35 struct AspeedBoardState {
36 AspeedSoCState soc;
37 MemoryRegion ram_container;
38 MemoryRegion ram;
39 MemoryRegion max_ram;
40 };
41
42 /* Palmetto hardware value: 0x120CE416 */
43 #define PALMETTO_BMC_HW_STRAP1 ( \
44 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
45 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
46 SCU_AST2400_HW_STRAP_ACPI_DIS | \
47 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
48 SCU_HW_STRAP_VGA_CLASS_CODE | \
49 SCU_HW_STRAP_LPC_RESET_PIN | \
50 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
51 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
52 SCU_HW_STRAP_SPI_WIDTH | \
53 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
54 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
55
56 /* AST2500 evb hardware value: 0xF100C2E6 */
57 #define AST2500_EVB_HW_STRAP1 (( \
58 AST2500_HW_STRAP1_DEFAULTS | \
59 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
60 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
61 SCU_AST2500_HW_STRAP_UART_DEBUG | \
62 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
63 SCU_HW_STRAP_MAC1_RGMII | \
64 SCU_HW_STRAP_MAC0_RGMII) & \
65 ~SCU_HW_STRAP_2ND_BOOT_WDT)
66
67 /* Romulus hardware value: 0xF10AD206 */
68 #define ROMULUS_BMC_HW_STRAP1 ( \
69 AST2500_HW_STRAP1_DEFAULTS | \
70 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
71 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
72 SCU_AST2500_HW_STRAP_UART_DEBUG | \
73 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
74 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
75 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
76
77 /* Swift hardware value: 0xF11AD206 */
78 #define SWIFT_BMC_HW_STRAP1 ( \
79 AST2500_HW_STRAP1_DEFAULTS | \
80 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
81 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
82 SCU_AST2500_HW_STRAP_UART_DEBUG | \
83 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
84 SCU_H_PLL_BYPASS_EN | \
85 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
86 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
87
88 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
89 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
90
91 /* AST2600 evb hardware value */
92 #define AST2600_EVB_HW_STRAP1 0x000000C0
93 #define AST2600_EVB_HW_STRAP2 0x00000003
94
95 /*
96 * The max ram region is for firmwares that scan the address space
97 * with load/store to guess how much RAM the SoC has.
98 */
99 static uint64_t max_ram_read(void *opaque, hwaddr offset, unsigned size)
100 {
101 return 0;
102 }
103
104 static void max_ram_write(void *opaque, hwaddr offset, uint64_t value,
105 unsigned size)
106 {
107 /* Discard writes */
108 }
109
110 static const MemoryRegionOps max_ram_ops = {
111 .read = max_ram_read,
112 .write = max_ram_write,
113 .endianness = DEVICE_NATIVE_ENDIAN,
114 };
115
116 #define FIRMWARE_ADDR 0x0
117
118 static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
119 Error **errp)
120 {
121 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
122 uint8_t *storage;
123 int64_t size;
124
125 /* The block backend size should have already been 'validated' by
126 * the creation of the m25p80 object.
127 */
128 size = blk_getlength(blk);
129 if (size <= 0) {
130 error_setg(errp, "failed to get flash size");
131 return;
132 }
133
134 if (rom_size > size) {
135 rom_size = size;
136 }
137
138 storage = g_new0(uint8_t, rom_size);
139 if (blk_pread(blk, 0, storage, rom_size) < 0) {
140 error_setg(errp, "failed to read the initial flash content");
141 return;
142 }
143
144 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
145 g_free(storage);
146 }
147
148 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
149 Error **errp)
150 {
151 int i ;
152
153 for (i = 0; i < s->num_cs; ++i) {
154 AspeedSMCFlash *fl = &s->flashes[i];
155 DriveInfo *dinfo = drive_get_next(IF_MTD);
156 qemu_irq cs_line;
157
158 fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
159 if (dinfo) {
160 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
161 errp);
162 }
163 qdev_init_nofail(fl->flash);
164
165 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
166 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
167 }
168 }
169
170 static void aspeed_board_init(MachineState *machine,
171 const AspeedBoardConfig *cfg)
172 {
173 AspeedBoardState *bmc;
174 AspeedSoCClass *sc;
175 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0);
176 ram_addr_t max_ram_size;
177 int i;
178
179 bmc = g_new0(AspeedBoardState, 1);
180
181 memory_region_init(&bmc->ram_container, NULL, "aspeed-ram-container",
182 UINT32_MAX);
183
184 object_initialize_child(OBJECT(machine), "soc", &bmc->soc,
185 (sizeof(bmc->soc)), cfg->soc_name, &error_abort,
186 NULL);
187
188 sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
189
190 object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size",
191 &error_abort);
192 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
193 &error_abort);
194 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap2, "hw-strap2",
195 &error_abort);
196 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs",
197 &error_abort);
198 object_property_set_int(OBJECT(&bmc->soc), machine->smp.cpus, "num-cpus",
199 &error_abort);
200 object_property_set_link(OBJECT(&bmc->soc), OBJECT(&bmc->ram_container),
201 "dram", &error_abort);
202 if (machine->kernel_filename) {
203 /*
204 * When booting with a -kernel command line there is no u-boot
205 * that runs to unlock the SCU. In this case set the default to
206 * be unlocked as the kernel expects
207 */
208 object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY,
209 "hw-prot-key", &error_abort);
210 }
211 object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
212 &error_abort);
213
214 /*
215 * Allocate RAM after the memory controller has checked the size
216 * was valid. If not, a default value is used.
217 */
218 ram_size = object_property_get_uint(OBJECT(&bmc->soc), "ram-size",
219 &error_abort);
220
221 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
222 memory_region_add_subregion(&bmc->ram_container, 0, &bmc->ram);
223 memory_region_add_subregion(get_system_memory(),
224 sc->memmap[ASPEED_SDRAM],
225 &bmc->ram_container);
226
227 max_ram_size = object_property_get_uint(OBJECT(&bmc->soc), "max-ram-size",
228 &error_abort);
229 memory_region_init_io(&bmc->max_ram, NULL, &max_ram_ops, NULL,
230 "max_ram", max_ram_size - ram_size);
231 memory_region_add_subregion(&bmc->ram_container, ram_size, &bmc->max_ram);
232
233 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
234 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
235
236 /* Install first FMC flash content as a boot rom. */
237 if (drive0) {
238 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0];
239 MemoryRegion *boot_rom = g_new(MemoryRegion, 1);
240
241 /*
242 * create a ROM region using the default mapping window size of
243 * the flash module. The window size is 64MB for the AST2400
244 * SoC and 128MB for the AST2500 SoC, which is twice as big as
245 * needed by the flash modules of the Aspeed machines.
246 */
247 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
248 fl->size, &error_abort);
249 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
250 boot_rom);
251 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort);
252 }
253
254 aspeed_board_binfo.ram_size = ram_size;
255 aspeed_board_binfo.loader_start = sc->memmap[ASPEED_SDRAM];
256 aspeed_board_binfo.nb_cpus = bmc->soc.num_cpus;
257
258 if (cfg->i2c_init) {
259 cfg->i2c_init(bmc);
260 }
261
262 for (i = 0; i < ARRAY_SIZE(bmc->soc.sdhci.slots); i++) {
263 SDHCIState *sdhci = &bmc->soc.sdhci.slots[i];
264 DriveInfo *dinfo = drive_get_next(IF_SD);
265 BlockBackend *blk;
266 DeviceState *card;
267
268 blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
269 card = qdev_create(qdev_get_child_bus(DEVICE(sdhci), "sd-bus"),
270 TYPE_SD_CARD);
271 qdev_prop_set_drive(card, "drive", blk, &error_fatal);
272 object_property_set_bool(OBJECT(card), true, "realized", &error_fatal);
273 }
274
275 arm_load_kernel(ARM_CPU(first_cpu), machine, &aspeed_board_binfo);
276 }
277
278 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)
279 {
280 AspeedSoCState *soc = &bmc->soc;
281 DeviceState *dev;
282 uint8_t *eeprom_buf = g_malloc0(32 * 1024);
283
284 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
285 * enough to provide basic RTC features. Alarms will be missing */
286 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
287
288 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50,
289 eeprom_buf);
290
291 /* add a TMP423 temperature sensor */
292 dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2),
293 "tmp423", 0x4c);
294 object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort);
295 object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort);
296 object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort);
297 object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort);
298 }
299
300 static void ast2500_evb_i2c_init(AspeedBoardState *bmc)
301 {
302 AspeedSoCState *soc = &bmc->soc;
303 uint8_t *eeprom_buf = g_malloc0(8 * 1024);
304
305 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50,
306 eeprom_buf);
307
308 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
309 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7),
310 TYPE_TMP105, 0x4d);
311
312 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
313 * plugged on the I2C bus header */
314 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
315 }
316
317 static void ast2600_evb_i2c_init(AspeedBoardState *bmc)
318 {
319 /* Start with some devices on our I2C busses */
320 ast2500_evb_i2c_init(bmc);
321 }
322
323 static void romulus_bmc_i2c_init(AspeedBoardState *bmc)
324 {
325 AspeedSoCState *soc = &bmc->soc;
326
327 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
328 * good enough */
329 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
330 }
331
332 static void swift_bmc_i2c_init(AspeedBoardState *bmc)
333 {
334 AspeedSoCState *soc = &bmc->soc;
335
336 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), "pca9552", 0x60);
337
338 /* The swift board expects a TMP275 but a TMP105 is compatible */
339 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x48);
340 /* The swift board expects a pca9551 but a pca9552 is compatible */
341 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "pca9552", 0x60);
342
343 /* The swift board expects an Epson RX8900 RTC but a ds1338 is compatible */
344 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "ds1338", 0x32);
345 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 8), "pca9552", 0x60);
346
347 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp423", 0x4c);
348 /* The swift board expects a pca9539 but a pca9552 is compatible */
349 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "pca9552", 0x74);
350
351 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "tmp423", 0x4c);
352 /* The swift board expects a pca9539 but a pca9552 is compatible */
353 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 10), "pca9552",
354 0x74);
355
356 /* The swift board expects a TMP275 but a TMP105 is compatible */
357 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x48);
358 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 12), "tmp105", 0x4a);
359 }
360
361 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc)
362 {
363 AspeedSoCState *soc = &bmc->soc;
364 uint8_t *eeprom_buf = g_malloc0(8 * 1024);
365
366 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), TYPE_PCA9552,
367 0x60);
368
369 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
370 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
371
372 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
373 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), TYPE_TMP105,
374 0x4a);
375
376 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
377 * good enough */
378 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
379
380 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51,
381 eeprom_buf);
382 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), TYPE_PCA9552,
383 0x60);
384 }
385
386 static void aspeed_machine_init(MachineState *machine)
387 {
388 AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(machine);
389
390 aspeed_board_init(machine, amc->board);
391 }
392
393 static void aspeed_machine_class_init(ObjectClass *oc, void *data)
394 {
395 MachineClass *mc = MACHINE_CLASS(oc);
396 AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
397 const AspeedBoardConfig *board = data;
398
399 mc->desc = board->desc;
400 mc->init = aspeed_machine_init;
401 mc->max_cpus = ASPEED_CPUS_NUM;
402 mc->no_floppy = 1;
403 mc->no_cdrom = 1;
404 mc->no_parallel = 1;
405 if (board->ram) {
406 mc->default_ram_size = board->ram;
407 }
408 amc->board = board;
409 }
410
411 static const TypeInfo aspeed_machine_type = {
412 .name = TYPE_ASPEED_MACHINE,
413 .parent = TYPE_MACHINE,
414 .instance_size = sizeof(AspeedMachine),
415 .class_size = sizeof(AspeedMachineClass),
416 .abstract = true,
417 };
418
419 static const AspeedBoardConfig aspeed_boards[] = {
420 {
421 .name = MACHINE_TYPE_NAME("palmetto-bmc"),
422 .desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)",
423 .soc_name = "ast2400-a1",
424 .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
425 .fmc_model = "n25q256a",
426 .spi_model = "mx25l25635e",
427 .num_cs = 1,
428 .i2c_init = palmetto_bmc_i2c_init,
429 .ram = 256 * MiB,
430 }, {
431 .name = MACHINE_TYPE_NAME("ast2500-evb"),
432 .desc = "Aspeed AST2500 EVB (ARM1176)",
433 .soc_name = "ast2500-a1",
434 .hw_strap1 = AST2500_EVB_HW_STRAP1,
435 .fmc_model = "w25q256",
436 .spi_model = "mx25l25635e",
437 .num_cs = 1,
438 .i2c_init = ast2500_evb_i2c_init,
439 .ram = 512 * MiB,
440 }, {
441 .name = MACHINE_TYPE_NAME("romulus-bmc"),
442 .desc = "OpenPOWER Romulus BMC (ARM1176)",
443 .soc_name = "ast2500-a1",
444 .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
445 .fmc_model = "n25q256a",
446 .spi_model = "mx66l1g45g",
447 .num_cs = 2,
448 .i2c_init = romulus_bmc_i2c_init,
449 .ram = 512 * MiB,
450 }, {
451 .name = MACHINE_TYPE_NAME("swift-bmc"),
452 .desc = "OpenPOWER Swift BMC (ARM1176)",
453 .soc_name = "ast2500-a1",
454 .hw_strap1 = SWIFT_BMC_HW_STRAP1,
455 .fmc_model = "mx66l1g45g",
456 .spi_model = "mx66l1g45g",
457 .num_cs = 2,
458 .i2c_init = swift_bmc_i2c_init,
459 .ram = 512 * MiB,
460 }, {
461 .name = MACHINE_TYPE_NAME("witherspoon-bmc"),
462 .desc = "OpenPOWER Witherspoon BMC (ARM1176)",
463 .soc_name = "ast2500-a1",
464 .hw_strap1 = WITHERSPOON_BMC_HW_STRAP1,
465 .fmc_model = "mx25l25635e",
466 .spi_model = "mx66l1g45g",
467 .num_cs = 2,
468 .i2c_init = witherspoon_bmc_i2c_init,
469 .ram = 512 * MiB,
470 }, {
471 .name = MACHINE_TYPE_NAME("ast2600-evb"),
472 .desc = "Aspeed AST2600 EVB (Cortex A7)",
473 .soc_name = "ast2600-a0",
474 .hw_strap1 = AST2600_EVB_HW_STRAP1,
475 .hw_strap2 = AST2600_EVB_HW_STRAP2,
476 .fmc_model = "w25q512jv",
477 .spi_model = "mx66u51235f",
478 .num_cs = 1,
479 .i2c_init = ast2600_evb_i2c_init,
480 .ram = 1 * GiB,
481 },
482 };
483
484 static void aspeed_machine_types(void)
485 {
486 int i;
487
488 type_register_static(&aspeed_machine_type);
489 for (i = 0; i < ARRAY_SIZE(aspeed_boards); ++i) {
490 TypeInfo ti = {
491 .name = aspeed_boards[i].name,
492 .parent = TYPE_ASPEED_MACHINE,
493 .class_init = aspeed_machine_class_init,
494 .class_data = (void *)&aspeed_boards[i],
495 };
496 type_register(&ti);
497 }
498 }
499
500 type_init(aspeed_machine_types)