diff mbox series

[PULL,33/51] armsse: Wire up systick cpuclk clock

Message ID 20210901103653.13435-34-peter.maydell@linaro.org
State New
Headers show
Series [PULL,01/51] tests: Remove uses of deprecated raspi2/raspi3 machine names | expand

Commit Message

Peter Maydell Sept. 1, 2021, 10:36 a.m. UTC 
Wire up the cpuclk for the systick devices to the SSE object's
existing mainclk clock.

We do not wire up the refclk because the SSE subsystems do not
provide a refclk.  (This is documented in the IoTKit and SSE-200
TRMs; the SSE-300 TRM doesn't mention it but we assume it follows the
same approach.) When we update the systick device later to honour "no
refclk connected" this will fix a minor emulation inaccuracy for the
SSE-based boards.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Message-id: 20210812093356.1946-8-peter.maydell@linaro.org
---
 hw/arm/armsse.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/hw/arm/armsse.c b/hw/arm/armsse.c
index a1456cb0f42..70b52c3d4b9 100644
--- a/hw/arm/armsse.c
+++ b/hw/arm/armsse.c
@@ -995,6 +995,9 @@  static void armsse_realize(DeviceState *dev, Error **errp)
         int j;
         char *gpioname;
 
+        qdev_connect_clock_in(cpudev, "cpuclk", s->mainclk);
+        /* The SSE subsystems do not wire up a systick refclk */
+
         qdev_prop_set_uint32(cpudev, "num-irq", s->exp_numirq + NUM_SSE_IRQS);
         /*
          * In real hardware the initial Secure VTOR is set from the INITSVTOR*