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"
24 #include "sysemu/block-backend.h"
25 #include "sysemu/sysemu.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 */
34 struct AspeedBoardState
{
40 /* Palmetto hardware value: 0x120CE416 */
41 #define PALMETTO_BMC_HW_STRAP1 ( \
42 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
43 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
44 SCU_AST2400_HW_STRAP_ACPI_DIS | \
45 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
46 SCU_HW_STRAP_VGA_CLASS_CODE | \
47 SCU_HW_STRAP_LPC_RESET_PIN | \
48 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
49 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
50 SCU_HW_STRAP_SPI_WIDTH | \
51 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
52 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
54 /* AST2500 evb hardware value: 0xF100C2E6 */
55 #define AST2500_EVB_HW_STRAP1 (( \
56 AST2500_HW_STRAP1_DEFAULTS | \
57 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
58 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
59 SCU_AST2500_HW_STRAP_UART_DEBUG | \
60 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
61 SCU_HW_STRAP_MAC1_RGMII | \
62 SCU_HW_STRAP_MAC0_RGMII) & \
63 ~SCU_HW_STRAP_2ND_BOOT_WDT)
65 /* Romulus hardware value: 0xF10AD206 */
66 #define ROMULUS_BMC_HW_STRAP1 ( \
67 AST2500_HW_STRAP1_DEFAULTS | \
68 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
69 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
70 SCU_AST2500_HW_STRAP_UART_DEBUG | \
71 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
72 SCU_AST2500_HW_STRAP_ACPI_ENABLE | \
73 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_MASTER))
75 /* Witherspoon hardware value: 0xF10AD216 (but use romulus definition) */
76 #define WITHERSPOON_BMC_HW_STRAP1 ROMULUS_BMC_HW_STRAP1
79 * The max ram region is for firmwares that scan the address space
80 * with load/store to guess how much RAM the SoC has.
82 static uint64_t max_ram_read(void *opaque
, hwaddr offset
, unsigned size
)
87 static void max_ram_write(void *opaque
, hwaddr offset
, uint64_t value
,
93 static const MemoryRegionOps max_ram_ops
= {
95 .write
= max_ram_write
,
96 .endianness
= DEVICE_NATIVE_ENDIAN
,
99 #define FIRMWARE_ADDR 0x0
101 static void write_boot_rom(DriveInfo
*dinfo
, hwaddr addr
, size_t rom_size
,
104 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
108 /* The block backend size should have already been 'validated' by
109 * the creation of the m25p80 object.
111 size
= blk_getlength(blk
);
113 error_setg(errp
, "failed to get flash size");
117 if (rom_size
> size
) {
121 storage
= g_new0(uint8_t, rom_size
);
122 if (blk_pread(blk
, 0, storage
, rom_size
) < 0) {
123 error_setg(errp
, "failed to read the initial flash content");
127 rom_add_blob_fixed("aspeed.boot_rom", storage
, rom_size
, addr
);
131 static void aspeed_board_init_flashes(AspeedSMCState
*s
, const char *flashtype
,
136 for (i
= 0; i
< s
->num_cs
; ++i
) {
137 AspeedSMCFlash
*fl
= &s
->flashes
[i
];
138 DriveInfo
*dinfo
= drive_get_next(IF_MTD
);
141 fl
->flash
= ssi_create_slave_no_init(s
->spi
, flashtype
);
143 qdev_prop_set_drive(fl
->flash
, "drive", blk_by_legacy_dinfo(dinfo
),
146 qdev_init_nofail(fl
->flash
);
148 cs_line
= qdev_get_gpio_in_named(fl
->flash
, SSI_GPIO_CS
, 0);
149 sysbus_connect_irq(SYS_BUS_DEVICE(s
), i
+ 1, cs_line
);
153 static void aspeed_board_init(MachineState
*machine
,
154 const AspeedBoardConfig
*cfg
)
156 AspeedBoardState
*bmc
;
158 DriveInfo
*drive0
= drive_get(IF_MTD
, 0, 0);
159 ram_addr_t max_ram_size
;
161 bmc
= g_new0(AspeedBoardState
, 1);
162 object_initialize_child(OBJECT(machine
), "soc", &bmc
->soc
,
163 (sizeof(bmc
->soc
)), cfg
->soc_name
, &error_abort
,
166 sc
= ASPEED_SOC_GET_CLASS(&bmc
->soc
);
168 object_property_set_uint(OBJECT(&bmc
->soc
), ram_size
, "ram-size",
170 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->hw_strap1
, "hw-strap1",
172 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->num_cs
, "num-cs",
174 object_property_set_int(OBJECT(&bmc
->soc
), smp_cpus
, "num-cpus",
176 if (machine
->kernel_filename
) {
178 * When booting with a -kernel command line there is no u-boot
179 * that runs to unlock the SCU. In this case set the default to
180 * be unlocked as the kernel expects
182 object_property_set_int(OBJECT(&bmc
->soc
), ASPEED_SCU_PROT_KEY
,
183 "hw-prot-key", &error_abort
);
185 object_property_set_bool(OBJECT(&bmc
->soc
), true, "realized",
189 * Allocate RAM after the memory controller has checked the size
190 * was valid. If not, a default value is used.
192 ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "ram-size",
195 memory_region_allocate_system_memory(&bmc
->ram
, NULL
, "ram", ram_size
);
196 memory_region_add_subregion(get_system_memory(),
197 sc
->info
->memmap
[ASPEED_SDRAM
], &bmc
->ram
);
198 object_property_add_const_link(OBJECT(&bmc
->soc
), "ram", OBJECT(&bmc
->ram
),
201 max_ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "max-ram-size",
203 memory_region_init_io(&bmc
->max_ram
, NULL
, &max_ram_ops
, NULL
,
204 "max_ram", max_ram_size
- ram_size
);
205 memory_region_add_subregion(get_system_memory(),
206 sc
->info
->memmap
[ASPEED_SDRAM
] + ram_size
,
209 aspeed_board_init_flashes(&bmc
->soc
.fmc
, cfg
->fmc_model
, &error_abort
);
210 aspeed_board_init_flashes(&bmc
->soc
.spi
[0], cfg
->spi_model
, &error_abort
);
212 /* Install first FMC flash content as a boot rom. */
214 AspeedSMCFlash
*fl
= &bmc
->soc
.fmc
.flashes
[0];
215 MemoryRegion
*boot_rom
= g_new(MemoryRegion
, 1);
218 * create a ROM region using the default mapping window size of
219 * the flash module. The window size is 64MB for the AST2400
220 * SoC and 128MB for the AST2500 SoC, which is twice as big as
221 * needed by the flash modules of the Aspeed machines.
223 memory_region_init_rom(boot_rom
, OBJECT(bmc
), "aspeed.boot_rom",
224 fl
->size
, &error_abort
);
225 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR
,
227 write_boot_rom(drive0
, FIRMWARE_ADDR
, fl
->size
, &error_abort
);
230 aspeed_board_binfo
.kernel_filename
= machine
->kernel_filename
;
231 aspeed_board_binfo
.initrd_filename
= machine
->initrd_filename
;
232 aspeed_board_binfo
.kernel_cmdline
= machine
->kernel_cmdline
;
233 aspeed_board_binfo
.ram_size
= ram_size
;
234 aspeed_board_binfo
.loader_start
= sc
->info
->memmap
[ASPEED_SDRAM
];
235 aspeed_board_binfo
.nb_cpus
= bmc
->soc
.num_cpus
;
241 arm_load_kernel(ARM_CPU(first_cpu
), &aspeed_board_binfo
);
244 static void palmetto_bmc_i2c_init(AspeedBoardState
*bmc
)
246 AspeedSoCState
*soc
= &bmc
->soc
;
248 uint8_t *eeprom_buf
= g_malloc0(32 * 1024);
250 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
251 * enough to provide basic RTC features. Alarms will be missing */
252 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), "ds1338", 0x68);
254 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), 0x50,
257 /* add a TMP423 temperature sensor */
258 dev
= i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 2),
260 object_property_set_int(OBJECT(dev
), 31000, "temperature0", &error_abort
);
261 object_property_set_int(OBJECT(dev
), 28000, "temperature1", &error_abort
);
262 object_property_set_int(OBJECT(dev
), 20000, "temperature2", &error_abort
);
263 object_property_set_int(OBJECT(dev
), 110000, "temperature3", &error_abort
);
266 static void ast2500_evb_i2c_init(AspeedBoardState
*bmc
)
268 AspeedSoCState
*soc
= &bmc
->soc
;
269 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
271 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), 0x50,
274 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
275 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7),
278 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
279 * plugged on the I2C bus header */
280 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
283 static void romulus_bmc_i2c_init(AspeedBoardState
*bmc
)
285 AspeedSoCState
*soc
= &bmc
->soc
;
287 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
289 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
292 static void witherspoon_bmc_i2c_init(AspeedBoardState
*bmc
)
294 AspeedSoCState
*soc
= &bmc
->soc
;
295 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
297 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), TYPE_PCA9552
,
300 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 4), "tmp423", 0x4c);
301 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 5), "tmp423", 0x4c);
303 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
304 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), TYPE_TMP105
,
307 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
309 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
311 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), 0x51,
313 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), TYPE_PCA9552
,
317 static void aspeed_machine_init(MachineState
*machine
)
319 AspeedMachineClass
*amc
= ASPEED_MACHINE_GET_CLASS(machine
);
321 aspeed_board_init(machine
, amc
->board
);
324 static void aspeed_machine_class_init(ObjectClass
*oc
, void *data
)
326 MachineClass
*mc
= MACHINE_CLASS(oc
);
327 AspeedMachineClass
*amc
= ASPEED_MACHINE_CLASS(oc
);
328 const AspeedBoardConfig
*board
= data
;
330 mc
->desc
= board
->desc
;
331 mc
->init
= aspeed_machine_init
;
332 mc
->max_cpus
= ASPEED_CPUS_NUM
;
338 mc
->default_ram_size
= board
->ram
;
343 static const TypeInfo aspeed_machine_type
= {
344 .name
= TYPE_ASPEED_MACHINE
,
345 .parent
= TYPE_MACHINE
,
346 .instance_size
= sizeof(AspeedMachine
),
347 .class_size
= sizeof(AspeedMachineClass
),
351 static const AspeedBoardConfig aspeed_boards
[] = {
353 .name
= MACHINE_TYPE_NAME("palmetto-bmc"),
354 .desc
= "OpenPOWER Palmetto BMC (ARM926EJ-S)",
355 .soc_name
= "ast2400-a1",
356 .hw_strap1
= PALMETTO_BMC_HW_STRAP1
,
357 .fmc_model
= "n25q256a",
358 .spi_model
= "mx25l25635e",
360 .i2c_init
= palmetto_bmc_i2c_init
,
363 .name
= MACHINE_TYPE_NAME("ast2500-evb"),
364 .desc
= "Aspeed AST2500 EVB (ARM1176)",
365 .soc_name
= "ast2500-a1",
366 .hw_strap1
= AST2500_EVB_HW_STRAP1
,
367 .fmc_model
= "w25q256",
368 .spi_model
= "mx25l25635e",
370 .i2c_init
= ast2500_evb_i2c_init
,
373 .name
= MACHINE_TYPE_NAME("romulus-bmc"),
374 .desc
= "OpenPOWER Romulus BMC (ARM1176)",
375 .soc_name
= "ast2500-a1",
376 .hw_strap1
= ROMULUS_BMC_HW_STRAP1
,
377 .fmc_model
= "n25q256a",
378 .spi_model
= "mx66l1g45g",
380 .i2c_init
= romulus_bmc_i2c_init
,
383 .name
= MACHINE_TYPE_NAME("witherspoon-bmc"),
384 .desc
= "OpenPOWER Witherspoon BMC (ARM1176)",
385 .soc_name
= "ast2500-a1",
386 .hw_strap1
= WITHERSPOON_BMC_HW_STRAP1
,
387 .fmc_model
= "mx25l25635e",
388 .spi_model
= "mx66l1g45g",
390 .i2c_init
= witherspoon_bmc_i2c_init
,
395 static void aspeed_machine_types(void)
399 type_register_static(&aspeed_machine_type
);
400 for (i
= 0; i
< ARRAY_SIZE(aspeed_boards
); ++i
) {
402 .name
= aspeed_boards
[i
].name
,
403 .parent
= TYPE_ASPEED_MACHINE
,
404 .class_init
= aspeed_machine_class_init
,
405 .class_data
= (void *)&aspeed_boards
[i
],
411 type_init(aspeed_machine_types
)