diff mbox series

[25/25] hw/arm/stellaris: Remove board-creation reset of STELLARIS_SYS

Message ID 20210121190622.22000-26-peter.maydell@linaro.org
State New
Headers show
Series Convert CMSDK timer, watchdog, dualtimer to Clock framework | expand

Commit Message

Peter Maydell Jan. 21, 2021, 7:06 p.m. UTC
Now that the watchdog device uses its Clock input rather than being
passed the value of system_clock_scale at creation time, we can
remove the hack where we reset the STELLARIS_SYS at board creation
time to force it to set system_clock_scale.  Instead it will be reset
at the usual point in startup and will inform the watchdog of the
clock frequency at that point.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/arm/stellaris.c | 10 ----------
 1 file changed, 10 deletions(-)

Comments

Luc Michel Jan. 23, 2021, 8:33 p.m. UTC | #1
On 19:06 Thu 21 Jan     , Peter Maydell wrote:
> Now that the watchdog device uses its Clock input rather than being
> passed the value of system_clock_scale at creation time, we can
> remove the hack where we reset the STELLARIS_SYS at board creation
> time to force it to set system_clock_scale.  Instead it will be reset
> at the usual point in startup and will inform the watchdog of the
> clock frequency at that point.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Reviewed-by: Luc Michel <luc@lmichel.fr>

> ---
>  hw/arm/stellaris.c | 10 ----------
>  1 file changed, 10 deletions(-)
> 
> diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
> index 5acb043a07e..ad72c0959f1 100644
> --- a/hw/arm/stellaris.c
> +++ b/hw/arm/stellaris.c
> @@ -780,16 +780,6 @@ static DeviceState *stellaris_sys_init(uint32_t base, qemu_irq irq,
>      sysbus_mmio_map(sbd, 0, base);
>      sysbus_connect_irq(sbd, 0, irq);
>  
> -    /*
> -     * Normally we should not be resetting devices like this during
> -     * board creation. For the moment we need to do so, because
> -     * system_clock_scale will only get set when the STELLARIS_SYS
> -     * device is reset, and we need its initial value to pass to
> -     * the watchdog device. This hack can be removed once the
> -     * watchdog has been converted to use a Clock input instead.
> -     */
> -    device_cold_reset(dev);
> -
>      return dev;
>  }
>  
> -- 
> 2.20.1
> 

--
Philippe Mathieu-Daudé Jan. 27, 2021, 10:10 p.m. UTC | #2
On 1/21/21 8:06 PM, Peter Maydell wrote:
> Now that the watchdog device uses its Clock input rather than being
> passed the value of system_clock_scale at creation time, we can
> remove the hack where we reset the STELLARIS_SYS at board creation
> time to force it to set system_clock_scale.  Instead it will be reset
> at the usual point in startup and will inform the watchdog of the
> clock frequency at that point.
> 
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
> ---
>  hw/arm/stellaris.c | 10 ----------
>  1 file changed, 10 deletions(-)

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
diff mbox series

Patch

diff --git a/hw/arm/stellaris.c b/hw/arm/stellaris.c
index 5acb043a07e..ad72c0959f1 100644
--- a/hw/arm/stellaris.c
+++ b/hw/arm/stellaris.c
@@ -780,16 +780,6 @@  static DeviceState *stellaris_sys_init(uint32_t base, qemu_irq irq,
     sysbus_mmio_map(sbd, 0, base);
     sysbus_connect_irq(sbd, 0, irq);
 
-    /*
-     * Normally we should not be resetting devices like this during
-     * board creation. For the moment we need to do so, because
-     * system_clock_scale will only get set when the STELLARIS_SYS
-     * device is reset, and we need its initial value to pass to
-     * the watchdog device. This hack can be removed once the
-     * watchdog has been converted to use a Clock input instead.
-     */
-    device_cold_reset(dev);
-
     return dev;
 }