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From: Peter Maydell <peter.maydell@linaro.org>
To: qemu-devel@nongnu.org
Subject: [PULL 35/46] hw/arm/mps2-tz: Create and connect ARMSSE Clocks
Date: Fri, 29 Jan 2021 11:00:01 +0000
Message-Id: <20210129110012.8660-36-peter.maydell@linaro.org>
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Create and connect the two clocks needed by the ARMSSE.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daud=C3=A9 <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Tested-by: Philippe Mathieu-Daud=C3=A9 <f4bug@amsat.org>
Message-id: 20210128114145.20536-15-peter.maydell@linaro.org
Message-id: 20210121190622.22000-15-peter.maydell@linaro.org
---
hw/arm/mps2-tz.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/hw/arm/mps2-tz.c b/hw/arm/mps2-tz.c
index 6a9eed9022a..7acdf490f28 100644
--- a/hw/arm/mps2-tz.c
+++ b/hw/arm/mps2-tz.c
@@ -62,6 +62,7 @@
#include "hw/net/lan9118.h"
#include "net/net.h"
#include "hw/core/split-irq.h"
+#include "hw/qdev-clock.h"
#include "qom/object.h"
=20
#define MPS2TZ_NUMIRQ 92
@@ -100,6 +101,8 @@ struct MPS2TZMachineState {
qemu_or_irq uart_irq_orgate;
DeviceState *lan9118;
SplitIRQ cpu_irq_splitter[MPS2TZ_NUMIRQ];
+ Clock *sysclk;
+ Clock *s32kclk;
};
=20
#define TYPE_MPS2TZ_MACHINE "mps2tz"
@@ -110,6 +113,8 @@ OBJECT_DECLARE_TYPE(MPS2TZMachineState, MPS2TZMachineCl=
ass, MPS2TZ_MACHINE)
=20
/* Main SYSCLK frequency in Hz */
#define SYSCLK_FRQ 20000000
+/* Slow 32Khz S32KCLK frequency in Hz */
+#define S32KCLK_FRQ (32 * 1000)
=20
/* Create an alias of an entire original MemoryRegion @orig
* located at @base in the memory map.
@@ -396,6 +401,12 @@ static void mps2tz_common_init(MachineState *machine)
exit(EXIT_FAILURE);
}
=20
+ /* These clocks don't need migration because they are fixed-frequency =
*/
+ mms->sysclk =3D clock_new(OBJECT(machine), "SYSCLK");
+ clock_set_hz(mms->sysclk, SYSCLK_FRQ);
+ mms->s32kclk =3D clock_new(OBJECT(machine), "S32KCLK");
+ clock_set_hz(mms->s32kclk, S32KCLK_FRQ);
+
object_initialize_child(OBJECT(machine), TYPE_IOTKIT, &mms->iotkit,
mmc->armsse_type);
iotkitdev =3D DEVICE(&mms->iotkit);
@@ -403,6 +414,8 @@ static void mps2tz_common_init(MachineState *machine)
OBJECT(system_memory), &error_abort);
qdev_prop_set_uint32(iotkitdev, "EXP_NUMIRQ", MPS2TZ_NUMIRQ);
qdev_prop_set_uint32(iotkitdev, "MAINCLK_FRQ", SYSCLK_FRQ);
+ qdev_connect_clock_in(iotkitdev, "MAINCLK", mms->sysclk);
+ qdev_connect_clock_in(iotkitdev, "S32KCLK", mms->s32kclk);
sysbus_realize(SYS_BUS_DEVICE(&mms->iotkit), &error_fatal);
=20
/*
--=20
2.20.1