2 * Raspberry Pi emulation (c) 2012 Gregory Estrade
3 * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
5 * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
6 * Written by Andrew Baumann
8 * This code is licensed under the GNU GPLv2 and later.
11 #include "qemu/osdep.h"
12 #include "qapi/error.h"
13 #include "qemu/module.h"
14 #include "hw/arm/bcm2835_peripherals.h"
15 #include "hw/misc/bcm2835_mbox_defs.h"
16 #include "hw/arm/raspi_platform.h"
17 #include "sysemu/sysemu.h"
19 /* Peripheral base address on the VC (GPU) system bus */
20 #define BCM2835_VC_PERI_BASE 0x7e000000
22 /* Capabilities for SD controller: no DMA, high-speed, default clocks etc. */
23 #define BCM2835_SDHC_CAPAREG 0x52134b4
25 static void create_unimp(BCM2835PeripheralState
*ps
,
26 UnimplementedDeviceState
*uds
,
27 const char *name
, hwaddr ofs
, hwaddr size
)
29 sysbus_init_child_obj(OBJECT(ps
), name
, uds
,
30 sizeof(UnimplementedDeviceState
),
31 TYPE_UNIMPLEMENTED_DEVICE
);
32 qdev_prop_set_string(DEVICE(uds
), "name", name
);
33 qdev_prop_set_uint64(DEVICE(uds
), "size", size
);
34 object_property_set_bool(OBJECT(uds
), true, "realized", &error_fatal
);
35 memory_region_add_subregion_overlap(&ps
->peri_mr
, ofs
,
36 sysbus_mmio_get_region(SYS_BUS_DEVICE(uds
), 0), -1000);
39 static void bcm2835_peripherals_init(Object
*obj
)
41 BCM2835PeripheralState
*s
= BCM2835_PERIPHERALS(obj
);
43 /* Memory region for peripheral devices, which we export to our parent */
44 memory_region_init(&s
->peri_mr
, obj
,"bcm2835-peripherals", 0x1000000);
45 object_property_add_child(obj
, "peripheral-io", OBJECT(&s
->peri_mr
), NULL
);
46 sysbus_init_mmio(SYS_BUS_DEVICE(s
), &s
->peri_mr
);
48 /* Internal memory region for peripheral bus addresses (not exported) */
49 memory_region_init(&s
->gpu_bus_mr
, obj
, "bcm2835-gpu", (uint64_t)1 << 32);
50 object_property_add_child(obj
, "gpu-bus", OBJECT(&s
->gpu_bus_mr
), NULL
);
52 /* Internal memory region for request/response communication with
53 * mailbox-addressable peripherals (not exported)
55 memory_region_init(&s
->mbox_mr
, obj
, "bcm2835-mbox",
56 MBOX_CHAN_COUNT
<< MBOX_AS_CHAN_SHIFT
);
58 /* Interrupt Controller */
59 sysbus_init_child_obj(obj
, "ic", &s
->ic
, sizeof(s
->ic
), TYPE_BCM2835_IC
);
62 sysbus_init_child_obj(obj
, "systimer", &s
->systmr
, sizeof(s
->systmr
),
63 TYPE_BCM2835_SYSTIMER
);
66 sysbus_init_child_obj(obj
, "uart0", &s
->uart0
, sizeof(s
->uart0
),
70 sysbus_init_child_obj(obj
, "aux", &s
->aux
, sizeof(s
->aux
),
74 sysbus_init_child_obj(obj
, "mbox", &s
->mboxes
, sizeof(s
->mboxes
),
77 object_property_add_const_link(OBJECT(&s
->mboxes
), "mbox-mr",
78 OBJECT(&s
->mbox_mr
), &error_abort
);
81 sysbus_init_child_obj(obj
, "fb", &s
->fb
, sizeof(s
->fb
), TYPE_BCM2835_FB
);
82 object_property_add_alias(obj
, "vcram-size", OBJECT(&s
->fb
), "vcram-size",
85 object_property_add_const_link(OBJECT(&s
->fb
), "dma-mr",
86 OBJECT(&s
->gpu_bus_mr
), &error_abort
);
88 /* Property channel */
89 sysbus_init_child_obj(obj
, "property", &s
->property
, sizeof(s
->property
),
90 TYPE_BCM2835_PROPERTY
);
91 object_property_add_alias(obj
, "board-rev", OBJECT(&s
->property
),
92 "board-rev", &error_abort
);
94 object_property_add_const_link(OBJECT(&s
->property
), "fb",
95 OBJECT(&s
->fb
), &error_abort
);
96 object_property_add_const_link(OBJECT(&s
->property
), "dma-mr",
97 OBJECT(&s
->gpu_bus_mr
), &error_abort
);
99 /* Random Number Generator */
100 sysbus_init_child_obj(obj
, "rng", &s
->rng
, sizeof(s
->rng
),
103 /* Extended Mass Media Controller */
104 sysbus_init_child_obj(obj
, "sdhci", &s
->sdhci
, sizeof(s
->sdhci
),
108 sysbus_init_child_obj(obj
, "sdhost", &s
->sdhost
, sizeof(s
->sdhost
),
109 TYPE_BCM2835_SDHOST
);
112 sysbus_init_child_obj(obj
, "dma", &s
->dma
, sizeof(s
->dma
),
115 object_property_add_const_link(OBJECT(&s
->dma
), "dma-mr",
116 OBJECT(&s
->gpu_bus_mr
), &error_abort
);
119 sysbus_init_child_obj(obj
, "thermal", &s
->thermal
, sizeof(s
->thermal
),
120 TYPE_BCM2835_THERMAL
);
123 sysbus_init_child_obj(obj
, "gpio", &s
->gpio
, sizeof(s
->gpio
),
126 object_property_add_const_link(OBJECT(&s
->gpio
), "sdbus-sdhci",
127 OBJECT(&s
->sdhci
.sdbus
), &error_abort
);
128 object_property_add_const_link(OBJECT(&s
->gpio
), "sdbus-sdhost",
129 OBJECT(&s
->sdhost
.sdbus
), &error_abort
);
132 static void bcm2835_peripherals_realize(DeviceState
*dev
, Error
**errp
)
134 BCM2835PeripheralState
*s
= BCM2835_PERIPHERALS(dev
);
138 uint64_t ram_size
, vcram_size
;
141 obj
= object_property_get_link(OBJECT(dev
), "ram", &err
);
143 error_setg(errp
, "%s: required ram link not found: %s",
144 __func__
, error_get_pretty(err
));
148 ram
= MEMORY_REGION(obj
);
149 ram_size
= memory_region_size(ram
);
151 /* Map peripherals and RAM into the GPU address space. */
152 memory_region_init_alias(&s
->peri_mr_alias
, OBJECT(s
),
153 "bcm2835-peripherals", &s
->peri_mr
, 0,
154 memory_region_size(&s
->peri_mr
));
156 memory_region_add_subregion_overlap(&s
->gpu_bus_mr
, BCM2835_VC_PERI_BASE
,
157 &s
->peri_mr_alias
, 1);
159 /* RAM is aliased four times (different cache configurations) on the GPU */
160 for (n
= 0; n
< 4; n
++) {
161 memory_region_init_alias(&s
->ram_alias
[n
], OBJECT(s
),
162 "bcm2835-gpu-ram-alias[*]", ram
, 0, ram_size
);
163 memory_region_add_subregion_overlap(&s
->gpu_bus_mr
, (hwaddr
)n
<< 30,
164 &s
->ram_alias
[n
], 0);
167 /* Interrupt Controller */
168 object_property_set_bool(OBJECT(&s
->ic
), true, "realized", &err
);
170 error_propagate(errp
, err
);
174 memory_region_add_subregion(&s
->peri_mr
, ARMCTRL_IC_OFFSET
,
175 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->ic
), 0));
176 sysbus_pass_irq(SYS_BUS_DEVICE(s
), SYS_BUS_DEVICE(&s
->ic
));
179 object_property_set_bool(OBJECT(&s
->systmr
), true, "realized", &err
);
181 error_propagate(errp
, err
);
184 memory_region_add_subregion(&s
->peri_mr
, ST_OFFSET
,
185 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->systmr
), 0));
186 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->systmr
), 0,
187 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_ARM_IRQ
,
188 INTERRUPT_ARM_TIMER
));
191 qdev_prop_set_chr(DEVICE(&s
->uart0
), "chardev", serial_hd(0));
192 object_property_set_bool(OBJECT(&s
->uart0
), true, "realized", &err
);
194 error_propagate(errp
, err
);
198 memory_region_add_subregion(&s
->peri_mr
, UART0_OFFSET
,
199 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->uart0
), 0));
200 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->uart0
), 0,
201 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
205 qdev_prop_set_chr(DEVICE(&s
->aux
), "chardev", serial_hd(1));
207 object_property_set_bool(OBJECT(&s
->aux
), true, "realized", &err
);
209 error_propagate(errp
, err
);
213 memory_region_add_subregion(&s
->peri_mr
, AUX_OFFSET
,
214 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->aux
), 0));
215 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->aux
), 0,
216 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
220 object_property_set_bool(OBJECT(&s
->mboxes
), true, "realized", &err
);
222 error_propagate(errp
, err
);
226 memory_region_add_subregion(&s
->peri_mr
, ARMCTRL_0_SBM_OFFSET
,
227 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->mboxes
), 0));
228 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->mboxes
), 0,
229 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_ARM_IRQ
,
230 INTERRUPT_ARM_MAILBOX
));
233 vcram_size
= object_property_get_uint(OBJECT(s
), "vcram-size", &err
);
235 error_propagate(errp
, err
);
239 object_property_set_uint(OBJECT(&s
->fb
), ram_size
- vcram_size
,
242 error_propagate(errp
, err
);
246 object_property_set_bool(OBJECT(&s
->fb
), true, "realized", &err
);
248 error_propagate(errp
, err
);
252 memory_region_add_subregion(&s
->mbox_mr
, MBOX_CHAN_FB
<< MBOX_AS_CHAN_SHIFT
,
253 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->fb
), 0));
254 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->fb
), 0,
255 qdev_get_gpio_in(DEVICE(&s
->mboxes
), MBOX_CHAN_FB
));
257 /* Property channel */
258 object_property_set_bool(OBJECT(&s
->property
), true, "realized", &err
);
260 error_propagate(errp
, err
);
264 memory_region_add_subregion(&s
->mbox_mr
,
265 MBOX_CHAN_PROPERTY
<< MBOX_AS_CHAN_SHIFT
,
266 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->property
), 0));
267 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->property
), 0,
268 qdev_get_gpio_in(DEVICE(&s
->mboxes
), MBOX_CHAN_PROPERTY
));
270 /* Random Number Generator */
271 object_property_set_bool(OBJECT(&s
->rng
), true, "realized", &err
);
273 error_propagate(errp
, err
);
277 memory_region_add_subregion(&s
->peri_mr
, RNG_OFFSET
,
278 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->rng
), 0));
280 /* Extended Mass Media Controller
283 * - SD Host Controller Specification Version 3.0 Draft 1.0
284 * - SDIO Specification Version 3.0
285 * - MMC Specification Version 4.4
287 * For the exact details please refer to the Arasan documentation:
288 * SD3.0_Host_AHB_eMMC4.4_Usersguide_ver5.9_jan11_10.pdf
290 object_property_set_uint(OBJECT(&s
->sdhci
), 3, "sd-spec-version", &err
);
291 object_property_set_uint(OBJECT(&s
->sdhci
), BCM2835_SDHC_CAPAREG
, "capareg",
293 object_property_set_bool(OBJECT(&s
->sdhci
), true, "pending-insert-quirk",
296 error_propagate(errp
, err
);
300 object_property_set_bool(OBJECT(&s
->sdhci
), true, "realized", &err
);
302 error_propagate(errp
, err
);
306 memory_region_add_subregion(&s
->peri_mr
, EMMC1_OFFSET
,
307 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->sdhci
), 0));
308 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->sdhci
), 0,
309 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
310 INTERRUPT_ARASANSDIO
));
313 object_property_set_bool(OBJECT(&s
->sdhost
), true, "realized", &err
);
315 error_propagate(errp
, err
);
319 memory_region_add_subregion(&s
->peri_mr
, MMCI0_OFFSET
,
320 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->sdhost
), 0));
321 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->sdhost
), 0,
322 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
326 object_property_set_bool(OBJECT(&s
->dma
), true, "realized", &err
);
328 error_propagate(errp
, err
);
332 memory_region_add_subregion(&s
->peri_mr
, DMA_OFFSET
,
333 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->dma
), 0));
334 memory_region_add_subregion(&s
->peri_mr
, DMA15_OFFSET
,
335 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->dma
), 1));
337 for (n
= 0; n
<= 12; n
++) {
338 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->dma
), n
,
339 qdev_get_gpio_in_named(DEVICE(&s
->ic
),
341 INTERRUPT_DMA0
+ n
));
345 object_property_set_bool(OBJECT(&s
->thermal
), true, "realized", &err
);
347 error_propagate(errp
, err
);
350 memory_region_add_subregion(&s
->peri_mr
, THERMAL_OFFSET
,
351 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->thermal
), 0));
354 object_property_set_bool(OBJECT(&s
->gpio
), true, "realized", &err
);
356 error_propagate(errp
, err
);
360 memory_region_add_subregion(&s
->peri_mr
, GPIO_OFFSET
,
361 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->gpio
), 0));
363 object_property_add_alias(OBJECT(s
), "sd-bus", OBJECT(&s
->gpio
), "sd-bus",
366 error_propagate(errp
, err
);
370 create_unimp(s
, &s
->armtmr
, "bcm2835-sp804", ARMCTRL_TIMER0_1_OFFSET
, 0x40);
371 create_unimp(s
, &s
->cprman
, "bcm2835-cprman", CPRMAN_OFFSET
, 0x1000);
372 create_unimp(s
, &s
->a2w
, "bcm2835-a2w", A2W_OFFSET
, 0x1000);
373 create_unimp(s
, &s
->i2s
, "bcm2835-i2s", I2S_OFFSET
, 0x100);
374 create_unimp(s
, &s
->smi
, "bcm2835-smi", SMI_OFFSET
, 0x100);
375 create_unimp(s
, &s
->spi
[0], "bcm2835-spi0", SPI0_OFFSET
, 0x20);
376 create_unimp(s
, &s
->bscsl
, "bcm2835-spis", BSC_SL_OFFSET
, 0x100);
377 create_unimp(s
, &s
->i2c
[0], "bcm2835-i2c0", BSC0_OFFSET
, 0x20);
378 create_unimp(s
, &s
->i2c
[1], "bcm2835-i2c1", BSC1_OFFSET
, 0x20);
379 create_unimp(s
, &s
->i2c
[2], "bcm2835-i2c2", BSC2_OFFSET
, 0x20);
380 create_unimp(s
, &s
->otp
, "bcm2835-otp", OTP_OFFSET
, 0x80);
381 create_unimp(s
, &s
->dbus
, "bcm2835-dbus", DBUS_OFFSET
, 0x8000);
382 create_unimp(s
, &s
->ave0
, "bcm2835-ave0", AVE0_OFFSET
, 0x8000);
383 create_unimp(s
, &s
->dwc2
, "dwc-usb2", USB_OTG_OFFSET
, 0x1000);
384 create_unimp(s
, &s
->sdramc
, "bcm2835-sdramc", SDRAMC_OFFSET
, 0x100);
387 static void bcm2835_peripherals_class_init(ObjectClass
*oc
, void *data
)
389 DeviceClass
*dc
= DEVICE_CLASS(oc
);
391 dc
->realize
= bcm2835_peripherals_realize
;
394 static const TypeInfo bcm2835_peripherals_type_info
= {
395 .name
= TYPE_BCM2835_PERIPHERALS
,
396 .parent
= TYPE_SYS_BUS_DEVICE
,
397 .instance_size
= sizeof(BCM2835PeripheralState
),
398 .instance_init
= bcm2835_peripherals_init
,
399 .class_init
= bcm2835_peripherals_class_init
,
402 static void bcm2835_peripherals_register_types(void)
404 type_register_static(&bcm2835_peripherals_type_info
);
407 type_init(bcm2835_peripherals_register_types
)