diff options
| author | Zoltán Baldaszti <bztemail@gmail.com> | 2019-03-15 11:12:28 +0000 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2019-03-15 11:12:28 +0000 |
| commit | 67d80321f26d9ea2b623ffac567a2f758ceae037 (patch) | |
| tree | ecc237bc08b5ddab21231db2bc47db9889bdbe35 /include | |
| parent | 7074ab12c81a1b2b1e0e1c40983f56b2c5ccc494 (diff) | |
hw/intc/bcm2836_control: Implement local timer
The BCM2836 control logic module includes a simple
"local timer" which is a programmable down-counter that
can generates an interrupt. Implement this functionality.
Signed-off-by: Zoltán Baldaszti <bztemail@gmail.com>
[PMM: wrote commit message; wrapped long line; tweaked
some comments to match the final version of the code]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/intc/bcm2836_control.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/include/hw/intc/bcm2836_control.h b/include/hw/intc/bcm2836_control.h index 613f3c4186..de061b8929 100644 --- a/include/hw/intc/bcm2836_control.h +++ b/include/hw/intc/bcm2836_control.h @@ -5,6 +5,9 @@ * Rasperry Pi 2 emulation and refactoring Copyright (c) 2015, Microsoft * Written by Andrew Baumann * + * ARM Local Timer IRQ Copyright (c) 2019. Zoltán Baldaszti + * Added basic IRQ_TIMER interrupt support + * * This code is licensed under the GNU GPLv2 and later. */ @@ -12,6 +15,7 @@ #define BCM2836_CONTROL_H #include "hw/sysbus.h" +#include "qemu/timer.h" /* 4 mailboxes per core, for 16 total */ #define BCM2836_NCORES 4 @@ -39,6 +43,11 @@ typedef struct BCM2836ControlState { bool gpu_irq, gpu_fiq; uint8_t timerirqs[BCM2836_NCORES]; + /* local timer */ + QEMUTimer timer; + uint32_t local_timer_control; + uint8_t route_localtimer; + /* interrupt source registers, post-routing (also input-derived; visible) */ uint32_t irqsrc[BCM2836_NCORES]; uint32_t fiqsrc[BCM2836_NCORES]; |