Register the watchdog peripheral as unimplemented to better
follow its accesses, for example booting Zephyr:
----------------
IN: wdog_cmsdk_apb_init
0x00000900: b508 push {r3, lr}
0x00000902: 4b07 ldr r3, [pc, #0x1c]
0x00000904: 4a07 ldr r2, [pc, #0x1c]
0x00000906: 6018 str r0, [r3]
0x00000908: 4b07 ldr r3, [pc, #0x1c]
0x0000090a: 4808 ldr r0, [pc, #0x20]
0x0000090c: f8c3 2c00 str.w r2, [r3, #0xc00]
0x00000910: 4a07 ldr r2, [pc, #0x1c]
0x00000912: 6812 ldr r2, [r2]
0x00000914: 601a str r2, [r3]
0x00000916: f000 f9f9 bl #0xd0c
cmsdk-apb-watchdog: unimplemented device write (size 4, value 0x1acce551,
offset 0xc00)
cmsdk-apb-watchdog: unimplemented device write (size 4, value 0xe4e1c00,
offset 0x0)
Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
hw/arm/mps2.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index 1e8d5f21f9..570ec50aa8 100644
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c
@@ -314,6 +314,7 @@ static void mps2_common_init(MachineState *machine)
sysbus_connect_irq(SYS_BUS_DEVICE(&mms->dualtimer), 0,
qdev_get_gpio_in(armv7m, 10));
sysbus_mmio_map(SYS_BUS_DEVICE(&mms->dualtimer), 0, 0x40002000);
+ create_unimplemented_device("cmsdk-apb-watchdog", 0x40008000, 0x1000);
sysbus_init_child_obj(OBJECT(mms), "scc", &mms->scc,
sizeof(mms->scc), TYPE_MPS2_SCC);
--
2.21.3
