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"
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"
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"
31 static struct arm_boot_info aspeed_board_binfo
= {
32 .board_id
= -1, /* device-tree-only board */
35 struct AspeedBoardState
{
37 MemoryRegion ram_container
;
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))
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)
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))
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))
88 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
89 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
92 * The max ram region is for firmwares that scan the address space
93 * with load/store to guess how much RAM the SoC has.
95 static uint64_t max_ram_read(void *opaque
, hwaddr offset
, unsigned size
)
100 static void max_ram_write(void *opaque
, hwaddr offset
, uint64_t value
,
106 static const MemoryRegionOps max_ram_ops
= {
107 .read
= max_ram_read
,
108 .write
= max_ram_write
,
109 .endianness
= DEVICE_NATIVE_ENDIAN
,
112 #define FIRMWARE_ADDR 0x0
114 static void write_boot_rom(DriveInfo
*dinfo
, hwaddr addr
, size_t rom_size
,
117 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
121 /* The block backend size should have already been 'validated' by
122 * the creation of the m25p80 object.
124 size
= blk_getlength(blk
);
126 error_setg(errp
, "failed to get flash size");
130 if (rom_size
> size
) {
134 storage
= g_new0(uint8_t, rom_size
);
135 if (blk_pread(blk
, 0, storage
, rom_size
) < 0) {
136 error_setg(errp
, "failed to read the initial flash content");
140 rom_add_blob_fixed("aspeed.boot_rom", storage
, rom_size
, addr
);
144 static void aspeed_board_init_flashes(AspeedSMCState
*s
, const char *flashtype
,
149 for (i
= 0; i
< s
->num_cs
; ++i
) {
150 AspeedSMCFlash
*fl
= &s
->flashes
[i
];
151 DriveInfo
*dinfo
= drive_get_next(IF_MTD
);
154 fl
->flash
= ssi_create_slave_no_init(s
->spi
, flashtype
);
156 qdev_prop_set_drive(fl
->flash
, "drive", blk_by_legacy_dinfo(dinfo
),
159 qdev_init_nofail(fl
->flash
);
161 cs_line
= qdev_get_gpio_in_named(fl
->flash
, SSI_GPIO_CS
, 0);
162 sysbus_connect_irq(SYS_BUS_DEVICE(s
), i
+ 1, cs_line
);
166 static void aspeed_board_init(MachineState
*machine
,
167 const AspeedBoardConfig
*cfg
)
169 AspeedBoardState
*bmc
;
171 DriveInfo
*drive0
= drive_get(IF_MTD
, 0, 0);
172 ram_addr_t max_ram_size
;
174 bmc
= g_new0(AspeedBoardState
, 1);
176 memory_region_init(&bmc
->ram_container
, NULL
, "aspeed-ram-container",
179 object_initialize_child(OBJECT(machine
), "soc", &bmc
->soc
,
180 (sizeof(bmc
->soc
)), cfg
->soc_name
, &error_abort
,
183 sc
= ASPEED_SOC_GET_CLASS(&bmc
->soc
);
185 object_property_set_uint(OBJECT(&bmc
->soc
), ram_size
, "ram-size",
187 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->hw_strap1
, "hw-strap1",
189 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->num_cs
, "num-cs",
191 object_property_set_int(OBJECT(&bmc
->soc
), machine
->smp
.cpus
, "num-cpus",
193 if (machine
->kernel_filename
) {
195 * When booting with a -kernel command line there is no u-boot
196 * that runs to unlock the SCU. In this case set the default to
197 * be unlocked as the kernel expects
199 object_property_set_int(OBJECT(&bmc
->soc
), ASPEED_SCU_PROT_KEY
,
200 "hw-prot-key", &error_abort
);
202 object_property_set_bool(OBJECT(&bmc
->soc
), true, "realized",
206 * Allocate RAM after the memory controller has checked the size
207 * was valid. If not, a default value is used.
209 ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "ram-size",
212 memory_region_allocate_system_memory(&bmc
->ram
, NULL
, "ram", ram_size
);
213 memory_region_add_subregion(&bmc
->ram_container
, 0, &bmc
->ram
);
214 memory_region_add_subregion(get_system_memory(),
215 sc
->info
->memmap
[ASPEED_SDRAM
],
216 &bmc
->ram_container
);
218 max_ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "max-ram-size",
220 memory_region_init_io(&bmc
->max_ram
, NULL
, &max_ram_ops
, NULL
,
221 "max_ram", max_ram_size
- ram_size
);
222 memory_region_add_subregion(&bmc
->ram_container
, ram_size
, &bmc
->max_ram
);
224 aspeed_board_init_flashes(&bmc
->soc
.fmc
, cfg
->fmc_model
, &error_abort
);
225 aspeed_board_init_flashes(&bmc
->soc
.spi
[0], cfg
->spi_model
, &error_abort
);
227 /* Install first FMC flash content as a boot rom. */
229 AspeedSMCFlash
*fl
= &bmc
->soc
.fmc
.flashes
[0];
230 MemoryRegion
*boot_rom
= g_new(MemoryRegion
, 1);
233 * create a ROM region using the default mapping window size of
234 * the flash module. The window size is 64MB for the AST2400
235 * SoC and 128MB for the AST2500 SoC, which is twice as big as
236 * needed by the flash modules of the Aspeed machines.
238 memory_region_init_rom(boot_rom
, OBJECT(bmc
), "aspeed.boot_rom",
239 fl
->size
, &error_abort
);
240 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR
,
242 write_boot_rom(drive0
, FIRMWARE_ADDR
, fl
->size
, &error_abort
);
245 aspeed_board_binfo
.ram_size
= ram_size
;
246 aspeed_board_binfo
.loader_start
= sc
->info
->memmap
[ASPEED_SDRAM
];
247 aspeed_board_binfo
.nb_cpus
= bmc
->soc
.num_cpus
;
253 arm_load_kernel(ARM_CPU(first_cpu
), machine
, &aspeed_board_binfo
);
256 static void palmetto_bmc_i2c_init(AspeedBoardState
*bmc
)
258 AspeedSoCState
*soc
= &bmc
->soc
;
260 uint8_t *eeprom_buf
= g_malloc0(32 * 1024);
262 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
263 * enough to provide basic RTC features. Alarms will be missing */
264 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), "ds1338", 0x68);
266 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), 0x50,
269 /* add a TMP423 temperature sensor */
270 dev
= i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 2),
272 object_property_set_int(OBJECT(dev
), 31000, "temperature0", &error_abort
);
273 object_property_set_int(OBJECT(dev
), 28000, "temperature1", &error_abort
);
274 object_property_set_int(OBJECT(dev
), 20000, "temperature2", &error_abort
);
275 object_property_set_int(OBJECT(dev
), 110000, "temperature3", &error_abort
);
278 static void ast2500_evb_i2c_init(AspeedBoardState
*bmc
)
280 AspeedSoCState
*soc
= &bmc
->soc
;
281 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
283 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), 0x50,
286 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
287 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7),
290 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
291 * plugged on the I2C bus header */
292 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
295 static void romulus_bmc_i2c_init(AspeedBoardState
*bmc
)
297 AspeedSoCState
*soc
= &bmc
->soc
;
299 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
301 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
304 static void swift_bmc_i2c_init(AspeedBoardState
*bmc
)
306 AspeedSoCState
*soc
= &bmc
->soc
;
308 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), "pca9552", 0x60);
310 /* The swift board expects a TMP275 but a TMP105 is compatible */
311 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7), "tmp105", 0x48);
312 /* The swift board expects a pca9551 but a pca9552 is compatible */
313 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7), "pca9552", 0x60);
315 /* The swift board expects an Epson RX8900 RTC but a ds1338 is compatible */
316 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 8), "ds1338", 0x32);
317 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 8), "pca9552", 0x60);
319 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), "tmp423", 0x4c);
320 /* The swift board expects a pca9539 but a pca9552 is compatible */
321 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), "pca9552", 0x74);
323 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 10), "tmp423", 0x4c);
324 /* The swift board expects a pca9539 but a pca9552 is compatible */
325 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 10), "pca9552",
328 /* The swift board expects a TMP275 but a TMP105 is compatible */
329 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 12), "tmp105", 0x48);
330 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 12), "tmp105", 0x4a);
333 static void witherspoon_bmc_i2c_init(AspeedBoardState
*bmc
)
335 AspeedSoCState
*soc
= &bmc
->soc
;
336 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
338 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), TYPE_PCA9552
,
341 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 4), "tmp423", 0x4c);
342 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 5), "tmp423", 0x4c);
344 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
345 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), TYPE_TMP105
,
348 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
350 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
352 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), 0x51,
354 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), TYPE_PCA9552
,
358 static void aspeed_machine_init(MachineState
*machine
)
360 AspeedMachineClass
*amc
= ASPEED_MACHINE_GET_CLASS(machine
);
362 aspeed_board_init(machine
, amc
->board
);
365 static void aspeed_machine_class_init(ObjectClass
*oc
, void *data
)
367 MachineClass
*mc
= MACHINE_CLASS(oc
);
368 AspeedMachineClass
*amc
= ASPEED_MACHINE_CLASS(oc
);
369 const AspeedBoardConfig
*board
= data
;
371 mc
->desc
= board
->desc
;
372 mc
->init
= aspeed_machine_init
;
373 mc
->max_cpus
= ASPEED_CPUS_NUM
;
379 mc
->default_ram_size
= board
->ram
;
384 static const TypeInfo aspeed_machine_type
= {
385 .name
= TYPE_ASPEED_MACHINE
,
386 .parent
= TYPE_MACHINE
,
387 .instance_size
= sizeof(AspeedMachine
),
388 .class_size
= sizeof(AspeedMachineClass
),
392 static const AspeedBoardConfig aspeed_boards
[] = {
394 .name
= MACHINE_TYPE_NAME("palmetto-bmc"),
395 .desc
= "OpenPOWER Palmetto BMC (ARM926EJ-S)",
396 .soc_name
= "ast2400-a1",
397 .hw_strap1
= PALMETTO_BMC_HW_STRAP1
,
398 .fmc_model
= "n25q256a",
399 .spi_model
= "mx25l25635e",
401 .i2c_init
= palmetto_bmc_i2c_init
,
404 .name
= MACHINE_TYPE_NAME("ast2500-evb"),
405 .desc
= "Aspeed AST2500 EVB (ARM1176)",
406 .soc_name
= "ast2500-a1",
407 .hw_strap1
= AST2500_EVB_HW_STRAP1
,
408 .fmc_model
= "w25q256",
409 .spi_model
= "mx25l25635e",
411 .i2c_init
= ast2500_evb_i2c_init
,
414 .name
= MACHINE_TYPE_NAME("romulus-bmc"),
415 .desc
= "OpenPOWER Romulus BMC (ARM1176)",
416 .soc_name
= "ast2500-a1",
417 .hw_strap1
= ROMULUS_BMC_HW_STRAP1
,
418 .fmc_model
= "n25q256a",
419 .spi_model
= "mx66l1g45g",
421 .i2c_init
= romulus_bmc_i2c_init
,
424 .name
= MACHINE_TYPE_NAME("swift-bmc"),
425 .desc
= "OpenPOWER Swift BMC (ARM1176)",
426 .soc_name
= "ast2500-a1",
427 .hw_strap1
= SWIFT_BMC_HW_STRAP1
,
428 .fmc_model
= "mx66l1g45g",
429 .spi_model
= "mx66l1g45g",
431 .i2c_init
= swift_bmc_i2c_init
,
434 .name
= MACHINE_TYPE_NAME("witherspoon-bmc"),
435 .desc
= "OpenPOWER Witherspoon BMC (ARM1176)",
436 .soc_name
= "ast2500-a1",
437 .hw_strap1
= WITHERSPOON_BMC_HW_STRAP1
,
438 .fmc_model
= "mx25l25635e",
439 .spi_model
= "mx66l1g45g",
441 .i2c_init
= witherspoon_bmc_i2c_init
,
446 static void aspeed_machine_types(void)
450 type_register_static(&aspeed_machine_type
);
451 for (i
= 0; i
< ARRAY_SIZE(aspeed_boards
); ++i
) {
453 .name
= aspeed_boards
[i
].name
,
454 .parent
= TYPE_ASPEED_MACHINE
,
455 .class_init
= aspeed_machine_class_init
,
456 .class_data
= (void *)&aspeed_boards
[i
],
462 type_init(aspeed_machine_types
)