qcow2: refactor decompress_buffer
[qemu/ar7.git] / hw / arm / aspeed.c
blob515898548284a3f90008b2bce97fca7371a35b15
1 /*
2 * OpenPOWER Palmetto BMC
4 * Andrew Jeffery <andrew@aj.id.au>
6 * Copyright 2016 IBM Corp.
8 * This code is licensed under the GPL version 2 or later. See
9 * the COPYING file in the top-level directory.
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu-common.h"
15 #include "cpu.h"
16 #include "exec/address-spaces.h"
17 #include "hw/arm/arm.h"
18 #include "hw/arm/aspeed.h"
19 #include "hw/arm/aspeed_soc.h"
20 #include "hw/boards.h"
21 #include "hw/i2c/smbus.h"
22 #include "qemu/log.h"
23 #include "sysemu/block-backend.h"
24 #include "hw/loader.h"
25 #include "qemu/error-report.h"
27 static struct arm_boot_info aspeed_board_binfo = {
28 .board_id = -1, /* device-tree-only board */
29 .nb_cpus = 1,
32 struct AspeedBoardState {
33 AspeedSoCState soc;
34 MemoryRegion ram;
35 MemoryRegion max_ram;
38 /* Palmetto hardware value: 0x120CE416 */
39 #define PALMETTO_BMC_HW_STRAP1 ( \
40 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
41 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
42 SCU_AST2400_HW_STRAP_ACPI_DIS | \
43 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
44 SCU_HW_STRAP_VGA_CLASS_CODE | \
45 SCU_HW_STRAP_LPC_RESET_PIN | \
46 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
47 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
48 SCU_HW_STRAP_SPI_WIDTH | \
49 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
50 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
52 /* AST2500 evb hardware value: 0xF100C2E6 */
53 #define AST2500_EVB_HW_STRAP1 (( \
54 AST2500_HW_STRAP1_DEFAULTS | \
55 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
56 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
57 SCU_AST2500_HW_STRAP_UART_DEBUG | \
58 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
59 SCU_HW_STRAP_MAC1_RGMII | \
60 SCU_HW_STRAP_MAC0_RGMII) & \
61 ~SCU_HW_STRAP_2ND_BOOT_WDT)
63 /* Romulus hardware value: 0xF10AD206 */
64 #define ROMULUS_BMC_HW_STRAP1 ( \
65 AST2500_HW_STRAP1_DEFAULTS | \
66 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
67 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
68 SCU_AST2500_HW_STRAP_UART_DEBUG | \
69 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
70 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
71 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
73 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
74 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
77 * The max ram region is for firmwares that scan the address space
78 * with load/store to guess how much RAM the SoC has.
80 static uint64_t max_ram_read(void *opaque, hwaddr offset, unsigned size)
82 return 0;
85 static void max_ram_write(void *opaque, hwaddr offset, uint64_t value,
86 unsigned size)
88 /* Discard writes */
91 static const MemoryRegionOps max_ram_ops = {
92 .read = max_ram_read,
93 .write = max_ram_write,
94 .endianness = DEVICE_NATIVE_ENDIAN,
97 #define FIRMWARE_ADDR 0x0
99 static void write_boot_rom(DriveInfo *dinfo, hwaddr addr, size_t rom_size,
100 Error **errp)
102 BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
103 uint8_t *storage;
104 int64_t size;
106 /* The block backend size should have already been 'validated' by
107 * the creation of the m25p80 object.
109 size = blk_getlength(blk);
110 if (size <= 0) {
111 error_setg(errp, "failed to get flash size");
112 return;
115 if (rom_size > size) {
116 rom_size = size;
119 storage = g_new0(uint8_t, rom_size);
120 if (blk_pread(blk, 0, storage, rom_size) < 0) {
121 error_setg(errp, "failed to read the initial flash content");
122 return;
125 rom_add_blob_fixed("aspeed.boot_rom", storage, rom_size, addr);
126 g_free(storage);
129 static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
130 Error **errp)
132 int i ;
134 for (i = 0; i < s->num_cs; ++i) {
135 AspeedSMCFlash *fl = &s->flashes[i];
136 DriveInfo *dinfo = drive_get_next(IF_MTD);
137 qemu_irq cs_line;
139 fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
140 if (dinfo) {
141 qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
142 errp);
144 qdev_init_nofail(fl->flash);
146 cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
147 sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
151 static void aspeed_board_init(MachineState *machine,
152 const AspeedBoardConfig *cfg)
154 AspeedBoardState *bmc;
155 AspeedSoCClass *sc;
156 DriveInfo *drive0 = drive_get(IF_MTD, 0, 0);
157 ram_addr_t max_ram_size;
159 bmc = g_new0(AspeedBoardState, 1);
160 object_initialize(&bmc->soc, (sizeof(bmc->soc)), cfg->soc_name);
161 object_property_add_child(OBJECT(machine), "soc", OBJECT(&bmc->soc),
162 &error_abort);
164 sc = ASPEED_SOC_GET_CLASS(&bmc->soc);
166 object_property_set_uint(OBJECT(&bmc->soc), ram_size, "ram-size",
167 &error_abort);
168 object_property_set_int(OBJECT(&bmc->soc), cfg->hw_strap1, "hw-strap1",
169 &error_abort);
170 object_property_set_int(OBJECT(&bmc->soc), cfg->num_cs, "num-cs",
171 &error_abort);
172 if (machine->kernel_filename) {
174 * When booting with a -kernel command line there is no u-boot
175 * that runs to unlock the SCU. In this case set the default to
176 * be unlocked as the kernel expects
178 object_property_set_int(OBJECT(&bmc->soc), ASPEED_SCU_PROT_KEY,
179 "hw-prot-key", &error_abort);
181 object_property_set_bool(OBJECT(&bmc->soc), true, "realized",
182 &error_abort);
185 * Allocate RAM after the memory controller has checked the size
186 * was valid. If not, a default value is used.
188 ram_size = object_property_get_uint(OBJECT(&bmc->soc), "ram-size",
189 &error_abort);
191 memory_region_allocate_system_memory(&bmc->ram, NULL, "ram", ram_size);
192 memory_region_add_subregion(get_system_memory(), sc->info->sdram_base,
193 &bmc->ram);
194 object_property_add_const_link(OBJECT(&bmc->soc), "ram", OBJECT(&bmc->ram),
195 &error_abort);
197 max_ram_size = object_property_get_uint(OBJECT(&bmc->soc), "max-ram-size",
198 &error_abort);
199 memory_region_init_io(&bmc->max_ram, NULL, &max_ram_ops, NULL,
200 "max_ram", max_ram_size - ram_size);
201 memory_region_add_subregion(get_system_memory(),
202 sc->info->sdram_base + ram_size,
203 &bmc->max_ram);
205 aspeed_board_init_flashes(&bmc->soc.fmc, cfg->fmc_model, &error_abort);
206 aspeed_board_init_flashes(&bmc->soc.spi[0], cfg->spi_model, &error_abort);
208 /* Install first FMC flash content as a boot rom. */
209 if (drive0) {
210 AspeedSMCFlash *fl = &bmc->soc.fmc.flashes[0];
211 MemoryRegion *boot_rom = g_new(MemoryRegion, 1);
214 * create a ROM region using the default mapping window size of
215 * the flash module. The window size is 64MB for the AST2400
216 * SoC and 128MB for the AST2500 SoC, which is twice as big as
217 * needed by the flash modules of the Aspeed machines.
219 memory_region_init_rom(boot_rom, OBJECT(bmc), "aspeed.boot_rom",
220 fl->size, &error_abort);
221 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR,
222 boot_rom);
223 write_boot_rom(drive0, FIRMWARE_ADDR, fl->size, &error_abort);
226 aspeed_board_binfo.kernel_filename = machine->kernel_filename;
227 aspeed_board_binfo.initrd_filename = machine->initrd_filename;
228 aspeed_board_binfo.kernel_cmdline = machine->kernel_cmdline;
229 aspeed_board_binfo.ram_size = ram_size;
230 aspeed_board_binfo.loader_start = sc->info->sdram_base;
232 if (cfg->i2c_init) {
233 cfg->i2c_init(bmc);
236 arm_load_kernel(ARM_CPU(first_cpu), &aspeed_board_binfo);
239 static void palmetto_bmc_i2c_init(AspeedBoardState *bmc)
241 AspeedSoCState *soc = &bmc->soc;
242 DeviceState *dev;
243 uint8_t *eeprom_buf = g_malloc0(32 * 1024);
245 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
246 * enough to provide basic RTC features. Alarms will be missing */
247 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), "ds1338", 0x68);
249 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 0), 0x50,
250 eeprom_buf);
252 /* add a TMP423 temperature sensor */
253 dev = i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 2),
254 "tmp423", 0x4c);
255 object_property_set_int(OBJECT(dev), 31000, "temperature0", &error_abort);
256 object_property_set_int(OBJECT(dev), 28000, "temperature1", &error_abort);
257 object_property_set_int(OBJECT(dev), 20000, "temperature2", &error_abort);
258 object_property_set_int(OBJECT(dev), 110000, "temperature3", &error_abort);
261 static void ast2500_evb_i2c_init(AspeedBoardState *bmc)
263 AspeedSoCState *soc = &bmc->soc;
264 uint8_t *eeprom_buf = g_malloc0(8 * 1024);
266 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), 0x50,
267 eeprom_buf);
269 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
270 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 7), "tmp105", 0x4d);
272 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
273 * plugged on the I2C bus header */
274 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
277 static void romulus_bmc_i2c_init(AspeedBoardState *bmc)
279 AspeedSoCState *soc = &bmc->soc;
281 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
282 * good enough */
283 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
286 static void witherspoon_bmc_i2c_init(AspeedBoardState *bmc)
288 AspeedSoCState *soc = &bmc->soc;
289 uint8_t *eeprom_buf = g_malloc0(8 * 1024);
291 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 3), "pca9552", 0x60);
293 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 4), "tmp423", 0x4c);
294 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 5), "tmp423", 0x4c);
296 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
297 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 9), "tmp105", 0x4a);
299 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
300 * good enough */
301 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "ds1338", 0x32);
303 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), 0x51,
304 eeprom_buf);
305 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc->i2c), 11), "pca9552",
306 0x60);
309 static void aspeed_machine_init(MachineState *machine)
311 AspeedMachineClass *amc = ASPEED_MACHINE_GET_CLASS(machine);
313 aspeed_board_init(machine, amc->board);
316 static void aspeed_machine_class_init(ObjectClass *oc, void *data)
318 MachineClass *mc = MACHINE_CLASS(oc);
319 AspeedMachineClass *amc = ASPEED_MACHINE_CLASS(oc);
320 const AspeedBoardConfig *board = data;
322 mc->desc = board->desc;
323 mc->init = aspeed_machine_init;
324 mc->max_cpus = 1;
325 mc->no_sdcard = 1;
326 mc->no_floppy = 1;
327 mc->no_cdrom = 1;
328 mc->no_parallel = 1;
329 amc->board = board;
332 static const TypeInfo aspeed_machine_type = {
333 .name = TYPE_ASPEED_MACHINE,
334 .parent = TYPE_MACHINE,
335 .instance_size = sizeof(AspeedMachine),
336 .class_size = sizeof(AspeedMachineClass),
337 .abstract = true,
340 static const AspeedBoardConfig aspeed_boards[] = {
342 .name = MACHINE_TYPE_NAME("palmetto-bmc"),
343 .desc = "OpenPOWER Palmetto BMC (ARM926EJ-S)",
344 .soc_name = "ast2400-a1",
345 .hw_strap1 = PALMETTO_BMC_HW_STRAP1,
346 .fmc_model = "n25q256a",
347 .spi_model = "mx25l25635e",
348 .num_cs = 1,
349 .i2c_init = palmetto_bmc_i2c_init,
350 }, {
351 .name = MACHINE_TYPE_NAME("ast2500-evb"),
352 .desc = "Aspeed AST2500 EVB (ARM1176)",
353 .soc_name = "ast2500-a1",
354 .hw_strap1 = AST2500_EVB_HW_STRAP1,
355 .fmc_model = "w25q256",
356 .spi_model = "mx25l25635e",
357 .num_cs = 1,
358 .i2c_init = ast2500_evb_i2c_init,
359 }, {
360 .name = MACHINE_TYPE_NAME("romulus-bmc"),
361 .desc = "OpenPOWER Romulus BMC (ARM1176)",
362 .soc_name = "ast2500-a1",
363 .hw_strap1 = ROMULUS_BMC_HW_STRAP1,
364 .fmc_model = "n25q256a",
365 .spi_model = "mx66l1g45g",
366 .num_cs = 2,
367 .i2c_init = romulus_bmc_i2c_init,
368 }, {
369 .name = MACHINE_TYPE_NAME("witherspoon-bmc"),
370 .desc = "OpenPOWER Witherspoon BMC (ARM1176)",
371 .soc_name = "ast2500-a1",
372 .hw_strap1 = WITHERSPOON_BMC_HW_STRAP1,
373 .fmc_model = "mx25l25635e",
374 .spi_model = "mx66l1g45g",
375 .num_cs = 2,
376 .i2c_init = witherspoon_bmc_i2c_init,
380 static void aspeed_machine_types(void)
382 int i;
384 type_register_static(&aspeed_machine_type);
385 for (i = 0; i < ARRAY_SIZE(aspeed_boards); ++i) {
386 TypeInfo ti = {
387 .name = aspeed_boards[i].name,
388 .parent = TYPE_ASPEED_MACHINE,
389 .class_init = aspeed_machine_class_init,
390 .class_data = (void *)&aspeed_boards[i],
392 type_register(&ti);
396 type_init(aspeed_machine_types)