diff options
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2019-10-20 01:47:00 +0200 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-10-25 13:09:27 +0100 |
| commit | 99c641370b52348b2893b2cd19624bf9a416ccfa (patch) | |
| tree | 7887c78e5a18a157c1248df390facff126094ef0 /include/hw/misc/bcm2835_thermal.h | |
| parent | 98a44c1603596fcfffdae5dc674932bc923db049 (diff) | |
hw/misc/bcm2835_thermal: Add a dummy BCM2835 thermal sensor
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>
Diffstat (limited to 'include/hw/misc/bcm2835_thermal.h')
| -rw-r--r-- | include/hw/misc/bcm2835_thermal.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/hw/misc/bcm2835_thermal.h b/include/hw/misc/bcm2835_thermal.h new file mode 100644 index 0000000000..c3651b27ec --- /dev/null +++ b/include/hw/misc/bcm2835_thermal.h @@ -0,0 +1,27 @@ +/* + * BCM2835 dummy thermal sensor + * + * Copyright (C) 2019 Philippe Mathieu-Daudé <f4bug@amsat.org> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef HW_MISC_BCM2835_THERMAL_H +#define HW_MISC_BCM2835_THERMAL_H + +#include "hw/sysbus.h" + +#define TYPE_BCM2835_THERMAL "bcm2835-thermal" + +#define BCM2835_THERMAL(obj) \ + OBJECT_CHECK(Bcm2835ThermalState, (obj), TYPE_BCM2835_THERMAL) + +typedef struct { + /*< private >*/ + SysBusDevice parent_obj; + /*< public >*/ + MemoryRegion iomem; + uint32_t ctl; +} Bcm2835ThermalState; + +#endif |