diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2024-04-26 13:29:12 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-04-30 15:14:15 +0100 |
| commit | 88c756bc9e5d38b6e46e631b9875ae954a319ed9 (patch) | |
| tree | 2e83719e6cfac0be7cd6806fff7d009bab8180db /include | |
| parent | ee4336f9470b74f4dd3493d1fdbd61ff13005f9d (diff) | |
hw/watchdog/sbsa_gwdt: Make watchdog timer frequency a QOM property
Currently the sbsa_gdwt watchdog device hardcodes its frequency at
62.5MHz. In real hardware, this watchdog is supposed to be driven
from the system counter, which also drives the CPU generic timers.
Newer CPU types (in particular from Armv8.6) should have a CPU
generic timer frequency of 1GHz, so we can't leave the watchdog
on the old QEMU default of 62.5GHz.
Make the frequency a QOM property so it can be set by the board,
and have our only board that uses this device set that frequency
to the same value it sets the CPU frequency.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20240426122913.3427983-4-peter.maydell@linaro.org
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/watchdog/sbsa_gwdt.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/hw/watchdog/sbsa_gwdt.h b/include/hw/watchdog/sbsa_gwdt.h index 70b137de30..4bdc6c6fdb 100644 --- a/include/hw/watchdog/sbsa_gwdt.h +++ b/include/hw/watchdog/sbsa_gwdt.h @@ -55,8 +55,6 @@ #define SBSA_GWDT_RMMIO_SIZE 0x1000 #define SBSA_GWDT_CMMIO_SIZE 0x1000 -#define SBSA_TIMER_FREQ 62500000 /* Hz */ - typedef struct SBSA_GWDTState { /* <private> */ SysBusDevice parent_obj; @@ -67,6 +65,7 @@ typedef struct SBSA_GWDTState { qemu_irq irq; QEMUTimer *timer; + uint64_t freq; uint32_t id; uint32_t wcs; |