From d05be883fc92f6f57ba1805ff2a99deb035557a2 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Date: Sun, 20 Oct 2019 01:47:02 +0200 Subject: hw/timer/bcm2835: Add the BCM2835 SYS_timer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add the 64-bit free running timer. Do not model the COMPARE register (no IRQ generated). This timer is used by Linux kernel and recently U-Boot: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/clocksource/bcm2835_timer.c?h=v3.7 https://github.com/u-boot/u-boot/blob/v2019.07/include/configs/rpi.h#L19 Datasheet used: https://www.raspberrypi.org/app/uploads/2012/02/BCM2835-ARM-Peripherals.pdf Signed-off-by: Philippe Mathieu-Daudé Reviewed-by: Alistair Francis Message-id: 20191019234715.25750-4-f4bug@amsat.org [PMM: squashed in switch to using memset in reset] Signed-off-by: Peter Maydell --- hw/timer/trace-events | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'hw/timer/trace-events') diff --git a/hw/timer/trace-events b/hw/timer/trace-events index db02a9142c..0aa399ac69 100644 --- a/hw/timer/trace-events +++ b/hw/timer/trace-events @@ -87,3 +87,8 @@ pl031_read(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" pl031_write(uint32_t addr, uint32_t value) "addr 0x%08x value 0x%08x" pl031_alarm_raised(void) "alarm raised" pl031_set_alarm(uint32_t ticks) "alarm set for %u ticks" + +# bcm2835_systmr.c +bcm2835_systmr_irq(bool enable) "timer irq state %u" +bcm2835_systmr_read(uint64_t offset, uint64_t data) "timer read: offset 0x%" PRIx64 " data 0x%" PRIx64 +bcm2835_systmr_write(uint64_t offset, uint64_t data) "timer write: offset 0x%" PRIx64 " data 0x%" PRIx64 -- cgit v1.2.3