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"
16 #include "exec/address-spaces.h"
17 #include "hw/arm/boot.h"
18 #include "hw/arm/aspeed.h"
19 #include "hw/arm/aspeed_soc.h"
20 #include "hw/boards.h"
21 #include "hw/i2c/smbus_eeprom.h"
22 #include "hw/misc/pca9552.h"
23 #include "hw/misc/tmp105.h"
25 #include "sysemu/block-backend.h"
26 #include "hw/loader.h"
27 #include "qemu/error-report.h"
28 #include "qemu/units.h"
30 static struct arm_boot_info aspeed_board_binfo
= {
31 .board_id
= -1, /* device-tree-only board */
35 struct AspeedBoardState
{
41 /* Palmetto hardware value: 0x120CE416 */
42 #define PALMETTO_BMC_HW_STRAP1 ( \
43 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
44 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
45 SCU_AST2400_HW_STRAP_ACPI_DIS | \
46 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
47 SCU_HW_STRAP_VGA_CLASS_CODE | \
48 SCU_HW_STRAP_LPC_RESET_PIN | \
49 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
50 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
51 SCU_HW_STRAP_SPI_WIDTH | \
52 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
53 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
55 /* AST2500 evb hardware value: 0xF100C2E6 */
56 #define AST2500_EVB_HW_STRAP1 (( \
57 AST2500_HW_STRAP1_DEFAULTS | \
58 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
59 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
60 SCU_AST2500_HW_STRAP_UART_DEBUG | \
61 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
62 SCU_HW_STRAP_MAC1_RGMII | \
63 SCU_HW_STRAP_MAC0_RGMII) & \
64 ~SCU_HW_STRAP_2ND_BOOT_WDT)
66 /* Romulus hardware value: 0xF10AD206 */
67 #define ROMULUS_BMC_HW_STRAP1 ( \
68 AST2500_HW_STRAP1_DEFAULTS | \
69 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
70 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
71 SCU_AST2500_HW_STRAP_UART_DEBUG | \
72 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
73 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
74 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
76 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
77 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
80 * The max ram region is for firmwares that scan the address space
81 * with load/store to guess how much RAM the SoC has.
83 static uint64_t max_ram_read(void *opaque
, hwaddr offset
, unsigned size
)
88 static void max_ram_write(void *opaque
, hwaddr offset
, uint64_t value
,
94 static const MemoryRegionOps max_ram_ops
= {
96 .write
= max_ram_write
,
97 .endianness
= DEVICE_NATIVE_ENDIAN
,
100 #define FIRMWARE_ADDR 0x0
102 static void write_boot_rom(DriveInfo
*dinfo
, hwaddr addr
, size_t rom_size
,
105 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
109 /* The block backend size should have already been 'validated' by
110 * the creation of the m25p80 object.
112 size
= blk_getlength(blk
);
114 error_setg(errp
, "failed to get flash size");
118 if (rom_size
> size
) {
122 storage
= g_new0(uint8_t, rom_size
);
123 if (blk_pread(blk
, 0, storage
, rom_size
) < 0) {
124 error_setg(errp
, "failed to read the initial flash content");
128 rom_add_blob_fixed("aspeed.boot_rom", storage
, rom_size
, addr
);
132 static void aspeed_board_init_flashes(AspeedSMCState
*s
, const char *flashtype
,
137 for (i
= 0; i
< s
->num_cs
; ++i
) {
138 AspeedSMCFlash
*fl
= &s
->flashes
[i
];
139 DriveInfo
*dinfo
= drive_get_next(IF_MTD
);
142 fl
->flash
= ssi_create_slave_no_init(s
->spi
, flashtype
);
144 qdev_prop_set_drive(fl
->flash
, "drive", blk_by_legacy_dinfo(dinfo
),
147 qdev_init_nofail(fl
->flash
);
149 cs_line
= qdev_get_gpio_in_named(fl
->flash
, SSI_GPIO_CS
, 0);
150 sysbus_connect_irq(SYS_BUS_DEVICE(s
), i
+ 1, cs_line
);
154 static void aspeed_board_init(MachineState
*machine
,
155 const AspeedBoardConfig
*cfg
)
157 AspeedBoardState
*bmc
;
159 DriveInfo
*drive0
= drive_get(IF_MTD
, 0, 0);
160 ram_addr_t max_ram_size
;
162 bmc
= g_new0(AspeedBoardState
, 1);
163 object_initialize(&bmc
->soc
, (sizeof(bmc
->soc
)), cfg
->soc_name
);
164 object_property_add_child(OBJECT(machine
), "soc", OBJECT(&bmc
->soc
),
167 sc
= ASPEED_SOC_GET_CLASS(&bmc
->soc
);
169 object_property_set_uint(OBJECT(&bmc
->soc
), ram_size
, "ram-size",
171 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->hw_strap1
, "hw-strap1",
173 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->num_cs
, "num-cs",
175 if (machine
->kernel_filename
) {
177 * When booting with a -kernel command line there is no u-boot
178 * that runs to unlock the SCU. In this case set the default to
179 * be unlocked as the kernel expects
181 object_property_set_int(OBJECT(&bmc
->soc
), ASPEED_SCU_PROT_KEY
,
182 "hw-prot-key", &error_abort
);
184 object_property_set_bool(OBJECT(&bmc
->soc
), true, "realized",
188 * Allocate RAM after the memory controller has checked the size
189 * was valid. If not, a default value is used.
191 ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "ram-size",
194 memory_region_allocate_system_memory(&bmc
->ram
, NULL
, "ram", ram_size
);
195 memory_region_add_subregion(get_system_memory(), sc
->info
->sdram_base
,
197 object_property_add_const_link(OBJECT(&bmc
->soc
), "ram", OBJECT(&bmc
->ram
),
200 max_ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "max-ram-size",
202 memory_region_init_io(&bmc
->max_ram
, NULL
, &max_ram_ops
, NULL
,
203 "max_ram", max_ram_size
- ram_size
);
204 memory_region_add_subregion(get_system_memory(),
205 sc
->info
->sdram_base
+ ram_size
,
208 aspeed_board_init_flashes(&bmc
->soc
.fmc
, cfg
->fmc_model
, &error_abort
);
209 aspeed_board_init_flashes(&bmc
->soc
.spi
[0], cfg
->spi_model
, &error_abort
);
211 /* Install first FMC flash content as a boot rom. */
213 AspeedSMCFlash
*fl
= &bmc
->soc
.fmc
.flashes
[0];
214 MemoryRegion
*boot_rom
= g_new(MemoryRegion
, 1);
217 * create a ROM region using the default mapping window size of
218 * the flash module. The window size is 64MB for the AST2400
219 * SoC and 128MB for the AST2500 SoC, which is twice as big as
220 * needed by the flash modules of the Aspeed machines.
222 memory_region_init_rom(boot_rom
, OBJECT(bmc
), "aspeed.boot_rom",
223 fl
->size
, &error_abort
);
224 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR
,
226 write_boot_rom(drive0
, FIRMWARE_ADDR
, fl
->size
, &error_abort
);
229 aspeed_board_binfo
.kernel_filename
= machine
->kernel_filename
;
230 aspeed_board_binfo
.initrd_filename
= machine
->initrd_filename
;
231 aspeed_board_binfo
.kernel_cmdline
= machine
->kernel_cmdline
;
232 aspeed_board_binfo
.ram_size
= ram_size
;
233 aspeed_board_binfo
.loader_start
= sc
->info
->sdram_base
;
239 arm_load_kernel(ARM_CPU(first_cpu
), &aspeed_board_binfo
);
242 static void palmetto_bmc_i2c_init(AspeedBoardState
*bmc
)
244 AspeedSoCState
*soc
= &bmc
->soc
;
246 uint8_t *eeprom_buf
= g_malloc0(32 * 1024);
248 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
249 * enough to provide basic RTC features. Alarms will be missing */
250 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), "ds1338", 0x68);
252 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), 0x50,
255 /* add a TMP423 temperature sensor */
256 dev
= i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 2),
258 object_property_set_int(OBJECT(dev
), 31000, "temperature0", &error_abort
);
259 object_property_set_int(OBJECT(dev
), 28000, "temperature1", &error_abort
);
260 object_property_set_int(OBJECT(dev
), 20000, "temperature2", &error_abort
);
261 object_property_set_int(OBJECT(dev
), 110000, "temperature3", &error_abort
);
264 static void ast2500_evb_i2c_init(AspeedBoardState
*bmc
)
266 AspeedSoCState
*soc
= &bmc
->soc
;
267 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
269 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), 0x50,
272 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
273 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7),
276 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
277 * plugged on the I2C bus header */
278 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
281 static void romulus_bmc_i2c_init(AspeedBoardState
*bmc
)
283 AspeedSoCState
*soc
= &bmc
->soc
;
285 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
287 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
290 static void witherspoon_bmc_i2c_init(AspeedBoardState
*bmc
)
292 AspeedSoCState
*soc
= &bmc
->soc
;
293 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
295 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), TYPE_PCA9552
,
298 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 4), "tmp423", 0x4c);
299 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 5), "tmp423", 0x4c);
301 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
302 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), TYPE_TMP105
,
305 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
307 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
309 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), 0x51,
311 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), TYPE_PCA9552
,
315 static void aspeed_machine_init(MachineState
*machine
)
317 AspeedMachineClass
*amc
= ASPEED_MACHINE_GET_CLASS(machine
);
319 aspeed_board_init(machine
, amc
->board
);
322 static void aspeed_machine_class_init(ObjectClass
*oc
, void *data
)
324 MachineClass
*mc
= MACHINE_CLASS(oc
);
325 AspeedMachineClass
*amc
= ASPEED_MACHINE_CLASS(oc
);
326 const AspeedBoardConfig
*board
= data
;
328 mc
->desc
= board
->desc
;
329 mc
->init
= aspeed_machine_init
;
336 mc
->default_ram_size
= board
->ram
;
341 static const TypeInfo aspeed_machine_type
= {
342 .name
= TYPE_ASPEED_MACHINE
,
343 .parent
= TYPE_MACHINE
,
344 .instance_size
= sizeof(AspeedMachine
),
345 .class_size
= sizeof(AspeedMachineClass
),
349 static const AspeedBoardConfig aspeed_boards
[] = {
351 .name
= MACHINE_TYPE_NAME("palmetto-bmc"),
352 .desc
= "OpenPOWER Palmetto BMC (ARM926EJ-S)",
353 .soc_name
= "ast2400-a1",
354 .hw_strap1
= PALMETTO_BMC_HW_STRAP1
,
355 .fmc_model
= "n25q256a",
356 .spi_model
= "mx25l25635e",
358 .i2c_init
= palmetto_bmc_i2c_init
,
361 .name
= MACHINE_TYPE_NAME("ast2500-evb"),
362 .desc
= "Aspeed AST2500 EVB (ARM1176)",
363 .soc_name
= "ast2500-a1",
364 .hw_strap1
= AST2500_EVB_HW_STRAP1
,
365 .fmc_model
= "w25q256",
366 .spi_model
= "mx25l25635e",
368 .i2c_init
= ast2500_evb_i2c_init
,
371 .name
= MACHINE_TYPE_NAME("romulus-bmc"),
372 .desc
= "OpenPOWER Romulus BMC (ARM1176)",
373 .soc_name
= "ast2500-a1",
374 .hw_strap1
= ROMULUS_BMC_HW_STRAP1
,
375 .fmc_model
= "n25q256a",
376 .spi_model
= "mx66l1g45g",
378 .i2c_init
= romulus_bmc_i2c_init
,
381 .name
= MACHINE_TYPE_NAME("witherspoon-bmc"),
382 .desc
= "OpenPOWER Witherspoon BMC (ARM1176)",
383 .soc_name
= "ast2500-a1",
384 .hw_strap1
= WITHERSPOON_BMC_HW_STRAP1
,
385 .fmc_model
= "mx25l25635e",
386 .spi_model
= "mx66l1g45g",
388 .i2c_init
= witherspoon_bmc_i2c_init
,
393 static void aspeed_machine_types(void)
397 type_register_static(&aspeed_machine_type
);
398 for (i
= 0; i
< ARRAY_SIZE(aspeed_boards
); ++i
) {
400 .name
= aspeed_boards
[i
].name
,
401 .parent
= TYPE_ASPEED_MACHINE
,
402 .class_init
= aspeed_machine_class_init
,
403 .class_data
= (void *)&aspeed_boards
[i
],
409 type_init(aspeed_machine_types
)