On 10/11/25 12:22, Gaurav Sharma wrote:
It enables emulation of WDT in iMX8MM
Added WDT IRQ lines
Signed-off-by: Gaurav Sharma <[email protected]>
---
docs/system/arm/imx8mm-evk.rst | 1 +
hw/arm/Kconfig | 1 +
hw/arm/fsl-imx8mm.c | 28 ++++++++++++++++++++++++++++
include/hw/arm/fsl-imx8mm.h | 7 +++++++
4 files changed, 37 insertions(+)
@@ -481,6 +486,28 @@ static void fsl_imx8mm_realize(DeviceState *dev, Error
**errp)
sysbus_mmio_map(SYS_BUS_DEVICE(&s->snvs), 0,
fsl_imx8mm_memmap[FSL_IMX8MM_SNVS_HP].addr);
+ /* Watchdogs */
+ for (i = 0; i < FSL_IMX8MM_NUM_WDTS; i++) {
static const?
+ struct {
+ hwaddr addr;
+ unsigned int irq;
+ } wdog_table[FSL_IMX8MM_NUM_WDTS] = {
+ { fsl_imx8mm_memmap[FSL_IMX8MM_WDOG1].addr, FSL_IMX8MM_WDOG1_IRQ },
+ { fsl_imx8mm_memmap[FSL_IMX8MM_WDOG2].addr, FSL_IMX8MM_WDOG2_IRQ },
+ { fsl_imx8mm_memmap[FSL_IMX8MM_WDOG3].addr, FSL_IMX8MM_WDOG3_IRQ },
+ };
+
+ object_property_set_bool(OBJECT(&s->wdt[i]), "pretimeout-support",
+ true, &error_abort);
+ if (!sysbus_realize(SYS_BUS_DEVICE(&s->wdt[i]), errp)) {
+ return;
+ }
+
+ sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0, wdog_table[i].addr);
+ sysbus_connect_irq(SYS_BUS_DEVICE(&s->wdt[i]), 0,
+ qdev_get_gpio_in(gicdev, wdog_table[i].irq));
+ }
Reviewed-by: Philippe Mathieu-Daudé <[email protected]>
