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We will soon implement the SYS_timer. This timer is used by Linux in the thermal subsystem, so once available, the subsystem will be enabled and poll the temperature sensors. We need to provide the minimum required to keep Linux booting. Add a dummy thermal sensor returning ~25°C based on: https://github.com/raspberrypi/linux/blob/rpi-5.3.y/drivers/thermal/broadcom/bcm2835_thermal.c Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Message-id: 20191019234715.25750-2-f4bug@amsat.org Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
28 lines
553 B
C
28 lines
553 B
C
/*
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* BCM2835 dummy thermal sensor
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*
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* Copyright (C) 2019 Philippe Mathieu-Daudé <f4bug@amsat.org>
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef HW_MISC_BCM2835_THERMAL_H
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#define HW_MISC_BCM2835_THERMAL_H
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#include "hw/sysbus.h"
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#define TYPE_BCM2835_THERMAL "bcm2835-thermal"
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#define BCM2835_THERMAL(obj) \
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OBJECT_CHECK(Bcm2835ThermalState, (obj), TYPE_BCM2835_THERMAL)
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typedef struct {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion iomem;
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uint32_t ctl;
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} Bcm2835ThermalState;
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#endif
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