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 work is licensed under the terms of the GNU GPL, version 2 or later.
9 * See the COPYING file in the top-level directory.
12 #include "qemu/osdep.h"
13 #include "qapi/error.h"
14 #include "qemu/module.h"
15 #include "hw/arm/bcm2835_peripherals.h"
16 #include "hw/misc/bcm2835_mbox_defs.h"
17 #include "hw/arm/raspi_platform.h"
18 #include "sysemu/sysemu.h"
20 /* Peripheral base address on the VC (GPU) system bus */
21 #define BCM2835_VC_PERI_BASE 0x7e000000
23 /* Capabilities for SD controller: no DMA, high-speed, default clocks etc. */
24 #define BCM2835_SDHC_CAPAREG 0x52134b4
26 static void create_unimp(BCM2835PeripheralState
*ps
,
27 UnimplementedDeviceState
*uds
,
28 const char *name
, hwaddr ofs
, hwaddr size
)
30 object_initialize_child(OBJECT(ps
), name
, uds
, TYPE_UNIMPLEMENTED_DEVICE
);
31 qdev_prop_set_string(DEVICE(uds
), "name", name
);
32 qdev_prop_set_uint64(DEVICE(uds
), "size", size
);
33 sysbus_realize(SYS_BUS_DEVICE(uds
), &error_fatal
);
34 memory_region_add_subregion_overlap(&ps
->peri_mr
, ofs
,
35 sysbus_mmio_get_region(SYS_BUS_DEVICE(uds
), 0), -1000);
38 static void bcm2835_peripherals_init(Object
*obj
)
40 BCM2835PeripheralState
*s
= BCM2835_PERIPHERALS(obj
);
42 /* Memory region for peripheral devices, which we export to our parent */
43 memory_region_init(&s
->peri_mr
, obj
,"bcm2835-peripherals", 0x1000000);
44 sysbus_init_mmio(SYS_BUS_DEVICE(s
), &s
->peri_mr
);
46 /* Internal memory region for peripheral bus addresses (not exported) */
47 memory_region_init(&s
->gpu_bus_mr
, obj
, "bcm2835-gpu", (uint64_t)1 << 32);
49 /* Internal memory region for request/response communication with
50 * mailbox-addressable peripherals (not exported)
52 memory_region_init(&s
->mbox_mr
, obj
, "bcm2835-mbox",
53 MBOX_CHAN_COUNT
<< MBOX_AS_CHAN_SHIFT
);
55 /* Interrupt Controller */
56 object_initialize_child(obj
, "ic", &s
->ic
, TYPE_BCM2835_IC
);
59 object_initialize_child(obj
, "systimer", &s
->systmr
,
60 TYPE_BCM2835_SYSTIMER
);
63 object_initialize_child(obj
, "uart0", &s
->uart0
, TYPE_PL011
);
66 object_initialize_child(obj
, "aux", &s
->aux
, TYPE_BCM2835_AUX
);
69 object_initialize_child(obj
, "mbox", &s
->mboxes
, TYPE_BCM2835_MBOX
);
71 object_property_add_const_link(OBJECT(&s
->mboxes
), "mbox-mr",
75 object_initialize_child(obj
, "fb", &s
->fb
, TYPE_BCM2835_FB
);
76 object_property_add_alias(obj
, "vcram-size", OBJECT(&s
->fb
), "vcram-size");
78 object_property_add_const_link(OBJECT(&s
->fb
), "dma-mr",
79 OBJECT(&s
->gpu_bus_mr
));
81 /* Property channel */
82 object_initialize_child(obj
, "property", &s
->property
,
83 TYPE_BCM2835_PROPERTY
);
84 object_property_add_alias(obj
, "board-rev", OBJECT(&s
->property
),
87 object_property_add_const_link(OBJECT(&s
->property
), "fb",
89 object_property_add_const_link(OBJECT(&s
->property
), "dma-mr",
90 OBJECT(&s
->gpu_bus_mr
));
92 /* Random Number Generator */
93 object_initialize_child(obj
, "rng", &s
->rng
, TYPE_BCM2835_RNG
);
95 /* Extended Mass Media Controller */
96 object_initialize_child(obj
, "sdhci", &s
->sdhci
, TYPE_SYSBUS_SDHCI
);
99 object_initialize_child(obj
, "sdhost", &s
->sdhost
, TYPE_BCM2835_SDHOST
);
102 object_initialize_child(obj
, "dma", &s
->dma
, TYPE_BCM2835_DMA
);
104 object_property_add_const_link(OBJECT(&s
->dma
), "dma-mr",
105 OBJECT(&s
->gpu_bus_mr
));
108 object_initialize_child(obj
, "thermal", &s
->thermal
, TYPE_BCM2835_THERMAL
);
111 object_initialize_child(obj
, "gpio", &s
->gpio
, TYPE_BCM2835_GPIO
);
113 object_property_add_const_link(OBJECT(&s
->gpio
), "sdbus-sdhci",
114 OBJECT(&s
->sdhci
.sdbus
));
115 object_property_add_const_link(OBJECT(&s
->gpio
), "sdbus-sdhost",
116 OBJECT(&s
->sdhost
.sdbus
));
119 object_initialize_child(obj
, "mphi", &s
->mphi
, TYPE_BCM2835_MPHI
);
122 object_initialize_child(obj
, "dwc2", &s
->dwc2
, TYPE_DWC2_USB
);
124 object_property_add_const_link(OBJECT(&s
->dwc2
), "dma-mr",
125 OBJECT(&s
->gpu_bus_mr
));
128 static void bcm2835_peripherals_realize(DeviceState
*dev
, Error
**errp
)
130 BCM2835PeripheralState
*s
= BCM2835_PERIPHERALS(dev
);
134 uint64_t ram_size
, vcram_size
;
137 obj
= object_property_get_link(OBJECT(dev
), "ram", &err
);
139 error_setg(errp
, "%s: required ram link not found: %s",
140 __func__
, error_get_pretty(err
));
144 ram
= MEMORY_REGION(obj
);
145 ram_size
= memory_region_size(ram
);
147 /* Map peripherals and RAM into the GPU address space. */
148 memory_region_init_alias(&s
->peri_mr_alias
, OBJECT(s
),
149 "bcm2835-peripherals", &s
->peri_mr
, 0,
150 memory_region_size(&s
->peri_mr
));
152 memory_region_add_subregion_overlap(&s
->gpu_bus_mr
, BCM2835_VC_PERI_BASE
,
153 &s
->peri_mr_alias
, 1);
155 /* RAM is aliased four times (different cache configurations) on the GPU */
156 for (n
= 0; n
< 4; n
++) {
157 memory_region_init_alias(&s
->ram_alias
[n
], OBJECT(s
),
158 "bcm2835-gpu-ram-alias[*]", ram
, 0, ram_size
);
159 memory_region_add_subregion_overlap(&s
->gpu_bus_mr
, (hwaddr
)n
<< 30,
160 &s
->ram_alias
[n
], 0);
163 /* Interrupt Controller */
164 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->ic
), &err
)) {
165 error_propagate(errp
, err
);
169 memory_region_add_subregion(&s
->peri_mr
, ARMCTRL_IC_OFFSET
,
170 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->ic
), 0));
171 sysbus_pass_irq(SYS_BUS_DEVICE(s
), SYS_BUS_DEVICE(&s
->ic
));
174 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->systmr
), &err
)) {
175 error_propagate(errp
, err
);
178 memory_region_add_subregion(&s
->peri_mr
, ST_OFFSET
,
179 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->systmr
), 0));
180 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->systmr
), 0,
181 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_ARM_IRQ
,
182 INTERRUPT_ARM_TIMER
));
185 qdev_prop_set_chr(DEVICE(&s
->uart0
), "chardev", serial_hd(0));
186 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->uart0
), &err
)) {
187 error_propagate(errp
, err
);
191 memory_region_add_subregion(&s
->peri_mr
, UART0_OFFSET
,
192 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->uart0
), 0));
193 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->uart0
), 0,
194 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
198 qdev_prop_set_chr(DEVICE(&s
->aux
), "chardev", serial_hd(1));
200 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->aux
), &err
)) {
201 error_propagate(errp
, err
);
205 memory_region_add_subregion(&s
->peri_mr
, AUX_OFFSET
,
206 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->aux
), 0));
207 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->aux
), 0,
208 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
212 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->mboxes
), &err
)) {
213 error_propagate(errp
, err
);
217 memory_region_add_subregion(&s
->peri_mr
, ARMCTRL_0_SBM_OFFSET
,
218 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->mboxes
), 0));
219 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->mboxes
), 0,
220 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_ARM_IRQ
,
221 INTERRUPT_ARM_MAILBOX
));
224 vcram_size
= object_property_get_uint(OBJECT(s
), "vcram-size", &err
);
226 error_propagate(errp
, err
);
230 object_property_set_uint(OBJECT(&s
->fb
), ram_size
- vcram_size
,
233 error_propagate(errp
, err
);
237 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->fb
), &err
)) {
238 error_propagate(errp
, err
);
242 memory_region_add_subregion(&s
->mbox_mr
, MBOX_CHAN_FB
<< MBOX_AS_CHAN_SHIFT
,
243 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->fb
), 0));
244 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->fb
), 0,
245 qdev_get_gpio_in(DEVICE(&s
->mboxes
), MBOX_CHAN_FB
));
247 /* Property channel */
248 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->property
), &err
)) {
249 error_propagate(errp
, err
);
253 memory_region_add_subregion(&s
->mbox_mr
,
254 MBOX_CHAN_PROPERTY
<< MBOX_AS_CHAN_SHIFT
,
255 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->property
), 0));
256 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->property
), 0,
257 qdev_get_gpio_in(DEVICE(&s
->mboxes
), MBOX_CHAN_PROPERTY
));
259 /* Random Number Generator */
260 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->rng
), &err
)) {
261 error_propagate(errp
, err
);
265 memory_region_add_subregion(&s
->peri_mr
, RNG_OFFSET
,
266 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->rng
), 0));
268 /* Extended Mass Media Controller
271 * - SD Host Controller Specification Version 3.0 Draft 1.0
272 * - SDIO Specification Version 3.0
273 * - MMC Specification Version 4.4
275 * For the exact details please refer to the Arasan documentation:
276 * SD3.0_Host_AHB_eMMC4.4_Usersguide_ver5.9_jan11_10.pdf
278 object_property_set_uint(OBJECT(&s
->sdhci
), 3, "sd-spec-version",
280 object_property_set_uint(OBJECT(&s
->sdhci
), BCM2835_SDHC_CAPAREG
, "capareg",
282 object_property_set_bool(OBJECT(&s
->sdhci
), true, "pending-insert-quirk",
284 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->sdhci
), &err
)) {
285 error_propagate(errp
, err
);
289 memory_region_add_subregion(&s
->peri_mr
, EMMC1_OFFSET
,
290 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->sdhci
), 0));
291 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->sdhci
), 0,
292 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
293 INTERRUPT_ARASANSDIO
));
296 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->sdhost
), &err
)) {
297 error_propagate(errp
, err
);
301 memory_region_add_subregion(&s
->peri_mr
, MMCI0_OFFSET
,
302 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->sdhost
), 0));
303 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->sdhost
), 0,
304 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
308 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->dma
), &err
)) {
309 error_propagate(errp
, err
);
313 memory_region_add_subregion(&s
->peri_mr
, DMA_OFFSET
,
314 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->dma
), 0));
315 memory_region_add_subregion(&s
->peri_mr
, DMA15_OFFSET
,
316 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->dma
), 1));
318 for (n
= 0; n
<= 12; n
++) {
319 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->dma
), n
,
320 qdev_get_gpio_in_named(DEVICE(&s
->ic
),
322 INTERRUPT_DMA0
+ n
));
326 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->thermal
), &err
)) {
327 error_propagate(errp
, err
);
330 memory_region_add_subregion(&s
->peri_mr
, THERMAL_OFFSET
,
331 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->thermal
), 0));
334 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->gpio
), &err
)) {
335 error_propagate(errp
, err
);
339 memory_region_add_subregion(&s
->peri_mr
, GPIO_OFFSET
,
340 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->gpio
), 0));
342 object_property_add_alias(OBJECT(s
), "sd-bus", OBJECT(&s
->gpio
), "sd-bus");
345 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->mphi
), &err
)) {
346 error_propagate(errp
, err
);
350 memory_region_add_subregion(&s
->peri_mr
, MPHI_OFFSET
,
351 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->mphi
), 0));
352 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->mphi
), 0,
353 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
354 INTERRUPT_HOSTPORT
));
357 if (!sysbus_realize(SYS_BUS_DEVICE(&s
->dwc2
), &err
)) {
358 error_propagate(errp
, err
);
362 memory_region_add_subregion(&s
->peri_mr
, USB_OTG_OFFSET
,
363 sysbus_mmio_get_region(SYS_BUS_DEVICE(&s
->dwc2
), 0));
364 sysbus_connect_irq(SYS_BUS_DEVICE(&s
->dwc2
), 0,
365 qdev_get_gpio_in_named(DEVICE(&s
->ic
), BCM2835_IC_GPU_IRQ
,
368 create_unimp(s
, &s
->armtmr
, "bcm2835-sp804", ARMCTRL_TIMER0_1_OFFSET
, 0x40);
369 create_unimp(s
, &s
->cprman
, "bcm2835-cprman", CPRMAN_OFFSET
, 0x1000);
370 create_unimp(s
, &s
->a2w
, "bcm2835-a2w", A2W_OFFSET
, 0x1000);
371 create_unimp(s
, &s
->i2s
, "bcm2835-i2s", I2S_OFFSET
, 0x100);
372 create_unimp(s
, &s
->smi
, "bcm2835-smi", SMI_OFFSET
, 0x100);
373 create_unimp(s
, &s
->spi
[0], "bcm2835-spi0", SPI0_OFFSET
, 0x20);
374 create_unimp(s
, &s
->bscsl
, "bcm2835-spis", BSC_SL_OFFSET
, 0x100);
375 create_unimp(s
, &s
->i2c
[0], "bcm2835-i2c0", BSC0_OFFSET
, 0x20);
376 create_unimp(s
, &s
->i2c
[1], "bcm2835-i2c1", BSC1_OFFSET
, 0x20);
377 create_unimp(s
, &s
->i2c
[2], "bcm2835-i2c2", BSC2_OFFSET
, 0x20);
378 create_unimp(s
, &s
->otp
, "bcm2835-otp", OTP_OFFSET
, 0x80);
379 create_unimp(s
, &s
->dbus
, "bcm2835-dbus", DBUS_OFFSET
, 0x8000);
380 create_unimp(s
, &s
->ave0
, "bcm2835-ave0", AVE0_OFFSET
, 0x8000);
381 create_unimp(s
, &s
->sdramc
, "bcm2835-sdramc", SDRAMC_OFFSET
, 0x100);
384 static void bcm2835_peripherals_class_init(ObjectClass
*oc
, void *data
)
386 DeviceClass
*dc
= DEVICE_CLASS(oc
);
388 dc
->realize
= bcm2835_peripherals_realize
;
391 static const TypeInfo bcm2835_peripherals_type_info
= {
392 .name
= TYPE_BCM2835_PERIPHERALS
,
393 .parent
= TYPE_SYS_BUS_DEVICE
,
394 .instance_size
= sizeof(BCM2835PeripheralState
),
395 .instance_init
= bcm2835_peripherals_init
,
396 .class_init
= bcm2835_peripherals_class_init
,
399 static void bcm2835_peripherals_register_types(void)
401 type_register_static(&bcm2835_peripherals_type_info
);
404 type_init(bcm2835_peripherals_register_types
)