diff options
Diffstat (limited to 'qemu/hw/arm/bcm2835_peripherals.c')
| -rw-r--r-- | qemu/hw/arm/bcm2835_peripherals.c | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/qemu/hw/arm/bcm2835_peripherals.c b/qemu/hw/arm/bcm2835_peripherals.c deleted file mode 100644 index 234d51843..000000000 --- a/qemu/hw/arm/bcm2835_peripherals.c +++ /dev/null @@ -1,312 +0,0 @@ -/* - * Raspberry Pi emulation (c) 2012 Gregory Estrade - * Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous - * - * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft - * Written by Andrew Baumann - * - * This code is licensed under the GNU GPLv2 and later. - */ - -#include "qemu/osdep.h" -#include "qapi/error.h" -#include "hw/arm/bcm2835_peripherals.h" -#include "hw/misc/bcm2835_mbox_defs.h" -#include "hw/arm/raspi_platform.h" -#include "sysemu/char.h" - -/* Peripheral base address on the VC (GPU) system bus */ -#define BCM2835_VC_PERI_BASE 0x7e000000 - -/* Capabilities for SD controller: no DMA, high-speed, default clocks etc. */ -#define BCM2835_SDHC_CAPAREG 0x52034b4 - -static void bcm2835_peripherals_init(Object *obj) -{ - BCM2835PeripheralState *s = BCM2835_PERIPHERALS(obj); - - /* Memory region for peripheral devices, which we export to our parent */ - memory_region_init(&s->peri_mr, obj,"bcm2835-peripherals", 0x1000000); - object_property_add_child(obj, "peripheral-io", OBJECT(&s->peri_mr), NULL); - sysbus_init_mmio(SYS_BUS_DEVICE(s), &s->peri_mr); - - /* Internal memory region for peripheral bus addresses (not exported) */ - memory_region_init(&s->gpu_bus_mr, obj, "bcm2835-gpu", (uint64_t)1 << 32); - object_property_add_child(obj, "gpu-bus", OBJECT(&s->gpu_bus_mr), NULL); - - /* Internal memory region for request/response communication with - * mailbox-addressable peripherals (not exported) - */ - memory_region_init(&s->mbox_mr, obj, "bcm2835-mbox", - MBOX_CHAN_COUNT << MBOX_AS_CHAN_SHIFT); - - /* Interrupt Controller */ - object_initialize(&s->ic, sizeof(s->ic), TYPE_BCM2835_IC); - object_property_add_child(obj, "ic", OBJECT(&s->ic), NULL); - qdev_set_parent_bus(DEVICE(&s->ic), sysbus_get_default()); - - /* UART0 */ - s->uart0 = SYS_BUS_DEVICE(object_new("pl011")); - object_property_add_child(obj, "uart0", OBJECT(s->uart0), NULL); - qdev_set_parent_bus(DEVICE(s->uart0), sysbus_get_default()); - - /* AUX / UART1 */ - object_initialize(&s->aux, sizeof(s->aux), TYPE_BCM2835_AUX); - object_property_add_child(obj, "aux", OBJECT(&s->aux), NULL); - qdev_set_parent_bus(DEVICE(&s->aux), sysbus_get_default()); - - /* Mailboxes */ - object_initialize(&s->mboxes, sizeof(s->mboxes), TYPE_BCM2835_MBOX); - object_property_add_child(obj, "mbox", OBJECT(&s->mboxes), NULL); - qdev_set_parent_bus(DEVICE(&s->mboxes), sysbus_get_default()); - - object_property_add_const_link(OBJECT(&s->mboxes), "mbox-mr", - OBJECT(&s->mbox_mr), &error_abort); - - /* Framebuffer */ - object_initialize(&s->fb, sizeof(s->fb), TYPE_BCM2835_FB); - object_property_add_child(obj, "fb", OBJECT(&s->fb), NULL); - object_property_add_alias(obj, "vcram-size", OBJECT(&s->fb), "vcram-size", - &error_abort); - qdev_set_parent_bus(DEVICE(&s->fb), sysbus_get_default()); - - object_property_add_const_link(OBJECT(&s->fb), "dma-mr", - OBJECT(&s->gpu_bus_mr), &error_abort); - - /* Property channel */ - object_initialize(&s->property, sizeof(s->property), TYPE_BCM2835_PROPERTY); - object_property_add_child(obj, "property", OBJECT(&s->property), NULL); - object_property_add_alias(obj, "board-rev", OBJECT(&s->property), - "board-rev", &error_abort); - qdev_set_parent_bus(DEVICE(&s->property), sysbus_get_default()); - - object_property_add_const_link(OBJECT(&s->property), "fb", - OBJECT(&s->fb), &error_abort); - object_property_add_const_link(OBJECT(&s->property), "dma-mr", - OBJECT(&s->gpu_bus_mr), &error_abort); - - /* Extended Mass Media Controller */ - object_initialize(&s->sdhci, sizeof(s->sdhci), TYPE_SYSBUS_SDHCI); - object_property_add_child(obj, "sdhci", OBJECT(&s->sdhci), NULL); - qdev_set_parent_bus(DEVICE(&s->sdhci), sysbus_get_default()); - - /* DMA Channels */ - object_initialize(&s->dma, sizeof(s->dma), TYPE_BCM2835_DMA); - object_property_add_child(obj, "dma", OBJECT(&s->dma), NULL); - qdev_set_parent_bus(DEVICE(&s->dma), sysbus_get_default()); - - object_property_add_const_link(OBJECT(&s->dma), "dma-mr", - OBJECT(&s->gpu_bus_mr), &error_abort); -} - -static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp) -{ - BCM2835PeripheralState *s = BCM2835_PERIPHERALS(dev); - Object *obj; - MemoryRegion *ram; - Error *err = NULL; - uint32_t ram_size, vcram_size; - CharDriverState *chr; - int n; - - obj = object_property_get_link(OBJECT(dev), "ram", &err); - if (obj == NULL) { - error_setg(errp, "%s: required ram link not found: %s", - __func__, error_get_pretty(err)); - return; - } - - ram = MEMORY_REGION(obj); - ram_size = memory_region_size(ram); - - /* Map peripherals and RAM into the GPU address space. */ - memory_region_init_alias(&s->peri_mr_alias, OBJECT(s), - "bcm2835-peripherals", &s->peri_mr, 0, - memory_region_size(&s->peri_mr)); - - memory_region_add_subregion_overlap(&s->gpu_bus_mr, BCM2835_VC_PERI_BASE, - &s->peri_mr_alias, 1); - - /* RAM is aliased four times (different cache configurations) on the GPU */ - for (n = 0; n < 4; n++) { - memory_region_init_alias(&s->ram_alias[n], OBJECT(s), - "bcm2835-gpu-ram-alias[*]", ram, 0, ram_size); - memory_region_add_subregion_overlap(&s->gpu_bus_mr, (hwaddr)n << 30, - &s->ram_alias[n], 0); - } - - /* Interrupt Controller */ - object_property_set_bool(OBJECT(&s->ic), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, ARMCTRL_IC_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->ic), 0)); - sysbus_pass_irq(SYS_BUS_DEVICE(s), SYS_BUS_DEVICE(&s->ic)); - - /* UART0 */ - object_property_set_bool(OBJECT(s->uart0), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, UART0_OFFSET, - sysbus_mmio_get_region(s->uart0, 0)); - sysbus_connect_irq(s->uart0, 0, - qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_GPU_IRQ, - INTERRUPT_UART)); - - /* AUX / UART1 */ - /* TODO: don't call qemu_char_get_next_serial() here, instead set - * chardev properties for each uart at the board level, once pl011 - * (uart0) has been updated to avoid qemu_char_get_next_serial() - */ - chr = qemu_char_get_next_serial(); - if (chr == NULL) { - chr = qemu_chr_new("bcm2835.uart1", "null", NULL); - } - qdev_prop_set_chr(DEVICE(&s->aux), "chardev", chr); - - object_property_set_bool(OBJECT(&s->aux), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, UART1_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->aux), 0)); - sysbus_connect_irq(SYS_BUS_DEVICE(&s->aux), 0, - qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_GPU_IRQ, - INTERRUPT_AUX)); - - /* Mailboxes */ - object_property_set_bool(OBJECT(&s->mboxes), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, ARMCTRL_0_SBM_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->mboxes), 0)); - sysbus_connect_irq(SYS_BUS_DEVICE(&s->mboxes), 0, - qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_ARM_IRQ, - INTERRUPT_ARM_MAILBOX)); - - /* Framebuffer */ - vcram_size = (uint32_t)object_property_get_int(OBJECT(s), "vcram-size", - &err); - if (err) { - error_propagate(errp, err); - return; - } - - object_property_set_int(OBJECT(&s->fb), ram_size - vcram_size, - "vcram-base", &err); - if (err) { - error_propagate(errp, err); - return; - } - - object_property_set_bool(OBJECT(&s->fb), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->mbox_mr, MBOX_CHAN_FB << MBOX_AS_CHAN_SHIFT, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->fb), 0)); - sysbus_connect_irq(SYS_BUS_DEVICE(&s->fb), 0, - qdev_get_gpio_in(DEVICE(&s->mboxes), MBOX_CHAN_FB)); - - /* Property channel */ - object_property_set_bool(OBJECT(&s->property), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->mbox_mr, - MBOX_CHAN_PROPERTY << MBOX_AS_CHAN_SHIFT, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->property), 0)); - sysbus_connect_irq(SYS_BUS_DEVICE(&s->property), 0, - qdev_get_gpio_in(DEVICE(&s->mboxes), MBOX_CHAN_PROPERTY)); - - /* Extended Mass Media Controller */ - object_property_set_int(OBJECT(&s->sdhci), BCM2835_SDHC_CAPAREG, "capareg", - &err); - if (err) { - error_propagate(errp, err); - return; - } - - object_property_set_bool(OBJECT(&s->sdhci), true, "pending-insert-quirk", - &err); - if (err) { - error_propagate(errp, err); - return; - } - - object_property_set_bool(OBJECT(&s->sdhci), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, EMMC_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->sdhci), 0)); - sysbus_connect_irq(SYS_BUS_DEVICE(&s->sdhci), 0, - qdev_get_gpio_in_named(DEVICE(&s->ic), BCM2835_IC_GPU_IRQ, - INTERRUPT_ARASANSDIO)); - object_property_add_alias(OBJECT(s), "sd-bus", OBJECT(&s->sdhci), "sd-bus", - &err); - if (err) { - error_propagate(errp, err); - return; - } - - /* DMA Channels */ - object_property_set_bool(OBJECT(&s->dma), true, "realized", &err); - if (err) { - error_propagate(errp, err); - return; - } - - memory_region_add_subregion(&s->peri_mr, DMA_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->dma), 0)); - memory_region_add_subregion(&s->peri_mr, DMA15_OFFSET, - sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->dma), 1)); - - for (n = 0; n <= 12; n++) { - sysbus_connect_irq(SYS_BUS_DEVICE(&s->dma), n, - qdev_get_gpio_in_named(DEVICE(&s->ic), - BCM2835_IC_GPU_IRQ, - INTERRUPT_DMA0 + n)); - } -} - -static void bcm2835_peripherals_class_init(ObjectClass *oc, void *data) -{ - DeviceClass *dc = DEVICE_CLASS(oc); - - dc->realize = bcm2835_peripherals_realize; - /* Reason: realize() method uses qemu_char_get_next_serial() */ - dc->cannot_instantiate_with_device_add_yet = true; -} - -static const TypeInfo bcm2835_peripherals_type_info = { - .name = TYPE_BCM2835_PERIPHERALS, - .parent = TYPE_SYS_BUS_DEVICE, - .instance_size = sizeof(BCM2835PeripheralState), - .instance_init = bcm2835_peripherals_init, - .class_init = bcm2835_peripherals_class_init, -}; - -static void bcm2835_peripherals_register_types(void) -{ - type_register_static(&bcm2835_peripherals_type_info); -} - -type_init(bcm2835_peripherals_register_types) |