diff mbox series

[18/21] hw/arm/beckhoff_CX7200: Set CPU frequency and PERIPHCLK period

Message ID 20250318130817.119636-19-corvin.koehne@gmail.com (mailing list archive)
State New
Headers show
Series Hi, | expand

Commit Message

Corvin Köhne March 18, 2025, 1:08 p.m. UTC 
From: YannickV <Y.Vossen@beckhoff.com>

The CPU frequency for the CX7200 is set to 720 MHz, with the
peripheral clock running at half of the CPU frequency. That
is why the PERIPHCLK_PERIOD is set to two. These values are
forwarded to the A9 global timer, watchdog timer and MP Timer.

Signed-off-by: Yannick Voßen <y.vossen@beckhoff.com>
---
 hw/arm/beckhoff_CX7200.c | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/hw/arm/beckhoff_CX7200.c b/hw/arm/beckhoff_CX7200.c
index a3f4045560..0f99cbf554 100644
--- a/hw/arm/beckhoff_CX7200.c
+++ b/hw/arm/beckhoff_CX7200.c
@@ -47,6 +47,9 @@  OBJECT_DECLARE_SIMPLE_TYPE(CX7200MachineState, CX7200_MACHINE)
 /* board base frequency: 33.333333 MHz */
 #define PS_CLK_FREQUENCY (100 * 1000 * 1000 / 3)
 
+#define PERIPHCLK_PERIOD 2
+#define PS7_CPU_CLK_FREQUENCY 720000000
+
 #define NUM_SPI_FLASHES 0
 #define NUM_QSPI_FLASHES 1
 #define NUM_QSPI_BUSSES 1
@@ -254,6 +257,13 @@  static void beckhoff_cx7200_init(MachineState *machine)
 
     dev = qdev_new(TYPE_A9MPCORE_PRIV);
     qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
+    A9MPPrivState *a9mp_priv_state = A9MPCORE_PRIV(dev);
+    a9mp_priv_state->gtimer.cpu_clk_freq_hz = PS7_CPU_CLK_FREQUENCY;
+    a9mp_priv_state->gtimer.periphclk_period = PERIPHCLK_PERIOD;
+    a9mp_priv_state->mptimer.clk_freq_hz = PS7_CPU_CLK_FREQUENCY;
+    a9mp_priv_state->mptimer.periphclk_period = PERIPHCLK_PERIOD;
+    a9mp_priv_state->wdt.clk_freq_hz = PS7_CPU_CLK_FREQUENCY;
+    a9mp_priv_state->wdt.periphclk_period = PERIPHCLK_PERIOD;
     busdev = SYS_BUS_DEVICE(dev);
     sysbus_realize_and_unref(busdev, &error_fatal);
     sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);