54a5ba13a9
Recent vanilla Raspberry Pi kernels started to make use of the hardware random number generator in BCM2835 SoC. As a result, those kernels wouldn't work anymore under QEMU but rather just freeze during the boot process. This patch implements a trivial BCM2835 compatible RNG, and adds it as a peripheral to BCM2835 platform, which allows to boot a vanilla Raspberry Pi kernel under Qemu. Changes since v1: * Prevented guest from writing [31..20] bits in rng_status * Removed redundant minimum_version_id_old * Added field entries for the state * Changed realize function to reset Signed-off-by: Marcin Chojnacki <marcinch7@gmail.com> Message-id: 20170210210857.47893-1-marcinch7@gmail.com Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
/*
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* Raspberry Pi emulation (c) 2012 Gregory Estrade
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* Upstreaming code cleanup [including bcm2835_*] (c) 2013 Jan Petrous
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*
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* Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft
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* Written by Andrew Baumann
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*
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* This code is licensed under the GNU GPLv2 and later.
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*/
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#ifndef BCM2835_PERIPHERALS_H
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#define BCM2835_PERIPHERALS_H
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#include "qemu-common.h"
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#include "exec/address-spaces.h"
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#include "hw/sysbus.h"
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#include "hw/char/bcm2835_aux.h"
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#include "hw/display/bcm2835_fb.h"
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#include "hw/dma/bcm2835_dma.h"
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#include "hw/intc/bcm2835_ic.h"
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#include "hw/misc/bcm2835_property.h"
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#include "hw/misc/bcm2835_rng.h"
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#include "hw/misc/bcm2835_mbox.h"
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#include "hw/sd/sdhci.h"
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#define TYPE_BCM2835_PERIPHERALS "bcm2835-peripherals"
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#define BCM2835_PERIPHERALS(obj) \
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OBJECT_CHECK(BCM2835PeripheralState, (obj), TYPE_BCM2835_PERIPHERALS)
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typedef struct BCM2835PeripheralState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion peri_mr, peri_mr_alias, gpu_bus_mr, mbox_mr;
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MemoryRegion ram_alias[4];
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qemu_irq irq, fiq;
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SysBusDevice *uart0;
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BCM2835AuxState aux;
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BCM2835FBState fb;
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BCM2835DMAState dma;
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BCM2835ICState ic;
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BCM2835PropertyState property;
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BCM2835RngState rng;
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BCM2835MboxState mboxes;
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SDHCIState sdhci;
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} BCM2835PeripheralState;
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#endif /* BCM2835_PERIPHERALS_H */
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