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004c8a8bc5
There is nothing in the specs on DMA engine interrupt lines: it should have
been in the "BCM2835 ARM Peripherals" datasheet but the appropriate
"ARM peripherals interrupt table" (p.113) is nearly empty.
All Raspberry Pi models 1-3 (based on bcm2835) have
Linux device tree (arch/arm/boot/dts/bcm2835-common.dtsi +25):
/* dma channel 11-14 share one irq */
This information is repeated in the driver code
(drivers/dma/bcm2835-dma.c +1344):
/*
* in case of channel >= 11
* use the 11th interrupt and that is shared
*/
In this patch channels 0--10 and 11--14 are handled separately.
Signed-off-by: Andrey Makarov <andrey.makarov@auriga.com>
Message-id: 20220716113210.349153-1-andrey.makarov@auriga.com
[PMM: fixed checkpatch nits]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
82 lines
2.3 KiB
C
82 lines
2.3 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 work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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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 "hw/sysbus.h"
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#include "hw/char/pl011.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/or-irq.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/misc/bcm2835_mphi.h"
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#include "hw/misc/bcm2835_thermal.h"
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#include "hw/misc/bcm2835_cprman.h"
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#include "hw/misc/bcm2835_powermgt.h"
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#include "hw/sd/sdhci.h"
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#include "hw/sd/bcm2835_sdhost.h"
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#include "hw/gpio/bcm2835_gpio.h"
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#include "hw/timer/bcm2835_systmr.h"
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#include "hw/usb/hcd-dwc2.h"
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#include "hw/misc/unimp.h"
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#include "qom/object.h"
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#define TYPE_BCM2835_PERIPHERALS "bcm2835-peripherals"
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OBJECT_DECLARE_SIMPLE_TYPE(BCM2835PeripheralState, BCM2835_PERIPHERALS)
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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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BCM2835SystemTimerState systmr;
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BCM2835MphiState mphi;
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UnimplementedDeviceState txp;
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UnimplementedDeviceState armtmr;
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BCM2835PowerMgtState powermgt;
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BCM2835CprmanState cprman;
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PL011State uart0;
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BCM2835AuxState aux;
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BCM2835FBState fb;
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BCM2835DMAState dma;
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qemu_or_irq orgated_dma_irq;
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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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BCM2835SDHostState sdhost;
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BCM2835GpioState gpio;
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Bcm2835ThermalState thermal;
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UnimplementedDeviceState i2s;
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UnimplementedDeviceState spi[1];
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UnimplementedDeviceState i2c[3];
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UnimplementedDeviceState otp;
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UnimplementedDeviceState dbus;
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UnimplementedDeviceState ave0;
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UnimplementedDeviceState v3d;
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UnimplementedDeviceState bscsl;
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UnimplementedDeviceState smi;
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DWC2State dwc2;
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UnimplementedDeviceState sdramc;
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};
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#endif /* BCM2835_PERIPHERALS_H */
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