diff options
| author | Peter Maydell | 2021-08-12 11:33:56 +0200 |
|---|---|---|
| committer | Peter Maydell | 2021-09-01 12:08:21 +0200 |
| commit | 683754c7b61f9e2ff098720ec80c9ab86c54663d (patch) | |
| tree | 2fcfe981edd85c7b87f40bab3332cee57d49604c /include/hw/timer | |
| parent | hw/timer/stellaris-gptm: Use Clock input instead of system_clock_scale (diff) | |
| download | qemu-683754c7b61f9e2ff098720ec80c9ab86c54663d.tar.gz qemu-683754c7b61f9e2ff098720ec80c9ab86c54663d.tar.xz qemu-683754c7b61f9e2ff098720ec80c9ab86c54663d.zip | |
arm: Remove system_clock_scale global
All the devices that used to use system_clock_scale have now been
converted to use Clock inputs instead, so the global is no longer
needed; remove it and all the code that sets it.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210812093356.1946-26-peter.maydell@linaro.org
Diffstat (limited to 'include/hw/timer')
| -rw-r--r-- | include/hw/timer/armv7m_systick.h | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/include/hw/timer/armv7m_systick.h b/include/hw/timer/armv7m_systick.h index 38adf8d274..ee09b13881 100644 --- a/include/hw/timer/armv7m_systick.h +++ b/include/hw/timer/armv7m_systick.h @@ -47,26 +47,4 @@ struct SysTickState { Clock *cpuclk; }; -/* - * Multiplication factor to convert from system clock ticks to qemu timer - * ticks. This should be set (by board code, usually) to a value - * equal to NANOSECONDS_PER_SECOND / frq, where frq is the clock frequency - * in Hz of the CPU. - * - * This value is used by the systick device when it is running in - * its "use the CPU clock" mode (ie when SYST_CSR.CLKSOURCE == 1) to - * set how fast the timer should tick. - * - * TODO: we should refactor this so that rather than using a global - * we use a device property or something similar. This is complicated - * because (a) the property would need to be plumbed through from the - * board code down through various layers to the systick device - * and (b) the property needs to be modifiable after realize, because - * the stellaris board uses this to implement the behaviour where the - * guest can reprogram the PLL registers to downclock the CPU, and the - * systick device needs to react accordingly. Possibly this should - * be deferred until we have a good API for modelling clock trees. - */ -extern int system_clock_scale; - #endif |