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/arm.h"
18 #include "hw/arm/aspeed_soc.h"
19 #include "hw/boards.h"
20 #include "hw/i2c/smbus.h"
22 #include "sysemu/block-backend.h"
23 #include "hw/loader.h"
24 #include "qemu/error-report.h"
26 static struct arm_boot_info aspeed_board_binfo
= {
27 .board_id
= -1, /* device-tree-only board */
31 typedef struct AspeedBoardState
{
37 typedef struct AspeedBoardConfig
{
40 const char *fmc_model
;
41 const char *spi_model
;
43 void (*i2c_init
)(AspeedBoardState
*bmc
);
53 /* Palmetto hardware value: 0x120CE416 */
54 #define PALMETTO_BMC_HW_STRAP1 ( \
55 SCU_AST2400_HW_STRAP_DRAM_SIZE(DRAM_SIZE_256MB) | \
56 SCU_AST2400_HW_STRAP_DRAM_CONFIG(2 /* DDR3 with CL=6, CWL=5 */) | \
57 SCU_AST2400_HW_STRAP_ACPI_DIS | \
58 SCU_AST2400_HW_STRAP_SET_CLK_SOURCE(AST2400_CLK_48M_IN) | \
59 SCU_HW_STRAP_VGA_CLASS_CODE | \
60 SCU_HW_STRAP_LPC_RESET_PIN | \
61 SCU_HW_STRAP_SPI_MODE(SCU_HW_STRAP_SPI_M_S_EN) | \
62 SCU_AST2400_HW_STRAP_SET_CPU_AHB_RATIO(AST2400_CPU_AHB_RATIO_2_1) | \
63 SCU_HW_STRAP_SPI_WIDTH | \
64 SCU_HW_STRAP_VGA_SIZE_SET(VGA_16M_DRAM) | \
65 SCU_AST2400_HW_STRAP_BOOT_MODE(AST2400_SPI_BOOT))
67 /* AST2500 evb hardware value: 0xF100C2E6 */
68 #define AST2500_EVB_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_HW_STRAP_MAC1_RGMII | \
75 SCU_HW_STRAP_MAC0_RGMII) & \
76 ~SCU_HW_STRAP_2ND_BOOT_WDT)
78 /* Romulus hardware value: 0xF10AD206 */
79 #define ROMULUS_BMC_HW_STRAP1 ( \
80 AST2500_HW_STRAP1_DEFAULTS | \
81 SCU_AST2500_HW_STRAP_SPI_AUTOFETCH_ENABLE | \
82 SCU_AST2500_HW_STRAP_GPIO_STRAP_ENABLE | \
83 SCU_AST2500_HW_STRAP_UART_DEBUG | \
84 SCU_AST2500_HW_STRAP_DDR4_ENABLE | \
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
91 static void palmetto_bmc_i2c_init(AspeedBoardState
*bmc
);
92 static void ast2500_evb_i2c_init(AspeedBoardState
*bmc
);
93 static void romulus_bmc_i2c_init(AspeedBoardState
*bmc
);
94 static void witherspoon_bmc_i2c_init(AspeedBoardState
*bmc
);
96 static const AspeedBoardConfig aspeed_boards
[] = {
98 .soc_name
= "ast2400-a1",
99 .hw_strap1
= PALMETTO_BMC_HW_STRAP1
,
100 .fmc_model
= "n25q256a",
101 .spi_model
= "mx25l25635e",
103 .i2c_init
= palmetto_bmc_i2c_init
,
106 .soc_name
= "ast2500-a1",
107 .hw_strap1
= AST2500_EVB_HW_STRAP1
,
108 .fmc_model
= "n25q256a",
109 .spi_model
= "mx25l25635e",
111 .i2c_init
= ast2500_evb_i2c_init
,
114 .soc_name
= "ast2500-a1",
115 .hw_strap1
= ROMULUS_BMC_HW_STRAP1
,
116 .fmc_model
= "n25q256a",
117 .spi_model
= "mx66l1g45g",
119 .i2c_init
= romulus_bmc_i2c_init
,
121 [WITHERSPOON_BMC
] = {
122 .soc_name
= "ast2500-a1",
123 .hw_strap1
= WITHERSPOON_BMC_HW_STRAP1
,
124 .fmc_model
= "mx25l25635e",
125 .spi_model
= "mx66l1g45g",
127 .i2c_init
= witherspoon_bmc_i2c_init
,
132 * The max ram region is for firmwares that scan the address space
133 * with load/store to guess how much RAM the SoC has.
135 static uint64_t max_ram_read(void *opaque
, hwaddr offset
, unsigned size
)
140 static void max_ram_write(void *opaque
, hwaddr offset
, uint64_t value
,
146 static const MemoryRegionOps max_ram_ops
= {
147 .read
= max_ram_read
,
148 .write
= max_ram_write
,
149 .endianness
= DEVICE_NATIVE_ENDIAN
,
152 #define FIRMWARE_ADDR 0x0
154 static void write_boot_rom(DriveInfo
*dinfo
, hwaddr addr
, size_t rom_size
,
157 BlockBackend
*blk
= blk_by_legacy_dinfo(dinfo
);
161 /* The block backend size should have already been 'validated' by
162 * the creation of the m25p80 object.
164 size
= blk_getlength(blk
);
166 error_setg(errp
, "failed to get flash size");
170 if (rom_size
> size
) {
174 storage
= g_new0(uint8_t, rom_size
);
175 if (blk_pread(blk
, 0, storage
, rom_size
) < 0) {
176 error_setg(errp
, "failed to read the initial flash content");
180 rom_add_blob_fixed("aspeed.boot_rom", storage
, rom_size
, addr
);
184 static void aspeed_board_init_flashes(AspeedSMCState
*s
, const char *flashtype
,
189 for (i
= 0; i
< s
->num_cs
; ++i
) {
190 AspeedSMCFlash
*fl
= &s
->flashes
[i
];
191 DriveInfo
*dinfo
= drive_get_next(IF_MTD
);
194 fl
->flash
= ssi_create_slave_no_init(s
->spi
, flashtype
);
196 qdev_prop_set_drive(fl
->flash
, "drive", blk_by_legacy_dinfo(dinfo
),
199 qdev_init_nofail(fl
->flash
);
201 cs_line
= qdev_get_gpio_in_named(fl
->flash
, SSI_GPIO_CS
, 0);
202 sysbus_connect_irq(SYS_BUS_DEVICE(s
), i
+ 1, cs_line
);
206 static void aspeed_board_init(MachineState
*machine
,
207 const AspeedBoardConfig
*cfg
)
209 AspeedBoardState
*bmc
;
211 DriveInfo
*drive0
= drive_get(IF_MTD
, 0, 0);
212 ram_addr_t max_ram_size
;
214 bmc
= g_new0(AspeedBoardState
, 1);
215 object_initialize(&bmc
->soc
, (sizeof(bmc
->soc
)), cfg
->soc_name
);
216 object_property_add_child(OBJECT(machine
), "soc", OBJECT(&bmc
->soc
),
219 sc
= ASPEED_SOC_GET_CLASS(&bmc
->soc
);
221 object_property_set_uint(OBJECT(&bmc
->soc
), ram_size
, "ram-size",
223 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->hw_strap1
, "hw-strap1",
225 object_property_set_int(OBJECT(&bmc
->soc
), cfg
->num_cs
, "num-cs",
227 if (machine
->kernel_filename
) {
229 * When booting with a -kernel command line there is no u-boot
230 * that runs to unlock the SCU. In this case set the default to
231 * be unlocked as the kernel expects
233 object_property_set_int(OBJECT(&bmc
->soc
), ASPEED_SCU_PROT_KEY
,
234 "hw-prot-key", &error_abort
);
236 object_property_set_bool(OBJECT(&bmc
->soc
), true, "realized",
240 * Allocate RAM after the memory controller has checked the size
241 * was valid. If not, a default value is used.
243 ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "ram-size",
246 memory_region_allocate_system_memory(&bmc
->ram
, NULL
, "ram", ram_size
);
247 memory_region_add_subregion(get_system_memory(), sc
->info
->sdram_base
,
249 object_property_add_const_link(OBJECT(&bmc
->soc
), "ram", OBJECT(&bmc
->ram
),
252 max_ram_size
= object_property_get_uint(OBJECT(&bmc
->soc
), "max-ram-size",
254 memory_region_init_io(&bmc
->max_ram
, NULL
, &max_ram_ops
, NULL
,
255 "max_ram", max_ram_size
- ram_size
);
256 memory_region_add_subregion(get_system_memory(),
257 sc
->info
->sdram_base
+ ram_size
,
260 aspeed_board_init_flashes(&bmc
->soc
.fmc
, cfg
->fmc_model
, &error_abort
);
261 aspeed_board_init_flashes(&bmc
->soc
.spi
[0], cfg
->spi_model
, &error_abort
);
263 /* Install first FMC flash content as a boot rom. */
265 AspeedSMCFlash
*fl
= &bmc
->soc
.fmc
.flashes
[0];
266 MemoryRegion
*boot_rom
= g_new(MemoryRegion
, 1);
269 * create a ROM region using the default mapping window size of
270 * the flash module. The window size is 64MB for the AST2400
271 * SoC and 128MB for the AST2500 SoC, which is twice as big as
272 * needed by the flash modules of the Aspeed machines.
274 memory_region_init_rom(boot_rom
, OBJECT(bmc
), "aspeed.boot_rom",
275 fl
->size
, &error_abort
);
276 memory_region_add_subregion(get_system_memory(), FIRMWARE_ADDR
,
278 write_boot_rom(drive0
, FIRMWARE_ADDR
, fl
->size
, &error_abort
);
281 aspeed_board_binfo
.kernel_filename
= machine
->kernel_filename
;
282 aspeed_board_binfo
.initrd_filename
= machine
->initrd_filename
;
283 aspeed_board_binfo
.kernel_cmdline
= machine
->kernel_cmdline
;
284 aspeed_board_binfo
.ram_size
= ram_size
;
285 aspeed_board_binfo
.loader_start
= sc
->info
->sdram_base
;
291 arm_load_kernel(ARM_CPU(first_cpu
), &aspeed_board_binfo
);
294 static void palmetto_bmc_i2c_init(AspeedBoardState
*bmc
)
296 AspeedSoCState
*soc
= &bmc
->soc
;
298 uint8_t *eeprom_buf
= g_malloc0(32 * 1024);
300 /* The palmetto platform expects a ds3231 RTC but a ds1338 is
301 * enough to provide basic RTC features. Alarms will be missing */
302 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), "ds1338", 0x68);
304 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 0), 0x50,
307 /* add a TMP423 temperature sensor */
308 dev
= i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 2),
310 object_property_set_int(OBJECT(dev
), 31000, "temperature0", &error_abort
);
311 object_property_set_int(OBJECT(dev
), 28000, "temperature1", &error_abort
);
312 object_property_set_int(OBJECT(dev
), 20000, "temperature2", &error_abort
);
313 object_property_set_int(OBJECT(dev
), 110000, "temperature3", &error_abort
);
316 static void palmetto_bmc_init(MachineState
*machine
)
318 aspeed_board_init(machine
, &aspeed_boards
[PALMETTO_BMC
]);
321 static void palmetto_bmc_class_init(ObjectClass
*oc
, void *data
)
323 MachineClass
*mc
= MACHINE_CLASS(oc
);
325 mc
->desc
= "OpenPOWER Palmetto BMC (ARM926EJ-S)";
326 mc
->init
= palmetto_bmc_init
;
334 static const TypeInfo palmetto_bmc_type
= {
335 .name
= MACHINE_TYPE_NAME("palmetto-bmc"),
336 .parent
= TYPE_MACHINE
,
337 .class_init
= palmetto_bmc_class_init
,
340 static void ast2500_evb_i2c_init(AspeedBoardState
*bmc
)
342 AspeedSoCState
*soc
= &bmc
->soc
;
343 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
345 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), 0x50,
348 /* The AST2500 EVB expects a LM75 but a TMP105 is compatible */
349 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 7), "tmp105", 0x4d);
351 /* The AST2500 EVB does not have an RTC. Let's pretend that one is
352 * plugged on the I2C bus header */
353 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
356 static void ast2500_evb_init(MachineState
*machine
)
358 aspeed_board_init(machine
, &aspeed_boards
[AST2500_EVB
]);
361 static void ast2500_evb_class_init(ObjectClass
*oc
, void *data
)
363 MachineClass
*mc
= MACHINE_CLASS(oc
);
365 mc
->desc
= "Aspeed AST2500 EVB (ARM1176)";
366 mc
->init
= ast2500_evb_init
;
374 static const TypeInfo ast2500_evb_type
= {
375 .name
= MACHINE_TYPE_NAME("ast2500-evb"),
376 .parent
= TYPE_MACHINE
,
377 .class_init
= ast2500_evb_class_init
,
380 static void romulus_bmc_i2c_init(AspeedBoardState
*bmc
)
382 AspeedSoCState
*soc
= &bmc
->soc
;
384 /* The romulus board expects Epson RX8900 I2C RTC but a ds1338 is
386 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
389 static void romulus_bmc_init(MachineState
*machine
)
391 aspeed_board_init(machine
, &aspeed_boards
[ROMULUS_BMC
]);
394 static void romulus_bmc_class_init(ObjectClass
*oc
, void *data
)
396 MachineClass
*mc
= MACHINE_CLASS(oc
);
398 mc
->desc
= "OpenPOWER Romulus BMC (ARM1176)";
399 mc
->init
= romulus_bmc_init
;
407 static const TypeInfo romulus_bmc_type
= {
408 .name
= MACHINE_TYPE_NAME("romulus-bmc"),
409 .parent
= TYPE_MACHINE
,
410 .class_init
= romulus_bmc_class_init
,
413 static void witherspoon_bmc_i2c_init(AspeedBoardState
*bmc
)
415 AspeedSoCState
*soc
= &bmc
->soc
;
416 uint8_t *eeprom_buf
= g_malloc0(8 * 1024);
418 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 3), "pca9552", 0x60);
420 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 4), "tmp423", 0x4c);
421 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 5), "tmp423", 0x4c);
423 /* The Witherspoon expects a TMP275 but a TMP105 is compatible */
424 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 9), "tmp105", 0x4a);
426 /* The witherspoon board expects Epson RX8900 I2C RTC but a ds1338 is
428 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "ds1338", 0x32);
430 smbus_eeprom_init_one(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), 0x51,
432 i2c_create_slave(aspeed_i2c_get_bus(DEVICE(&soc
->i2c
), 11), "pca9552",
436 static void witherspoon_bmc_init(MachineState
*machine
)
438 aspeed_board_init(machine
, &aspeed_boards
[WITHERSPOON_BMC
]);
441 static void witherspoon_bmc_class_init(ObjectClass
*oc
, void *data
)
443 MachineClass
*mc
= MACHINE_CLASS(oc
);
445 mc
->desc
= "OpenPOWER Witherspoon BMC (ARM1176)";
446 mc
->init
= witherspoon_bmc_init
;
454 static const TypeInfo witherspoon_bmc_type
= {
455 .name
= MACHINE_TYPE_NAME("witherspoon-bmc"),
456 .parent
= TYPE_MACHINE
,
457 .class_init
= witherspoon_bmc_class_init
,
460 static void aspeed_machine_init(void)
462 type_register_static(&palmetto_bmc_type
);
463 type_register_static(&ast2500_evb_type
);
464 type_register_static(&romulus_bmc_type
);
465 type_register_static(&witherspoon_bmc_type
);
468 type_init(aspeed_machine_init
)