diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2024-01-15 10:27:57 -0800 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2024-01-26 11:30:47 +0000 |
| commit | 2af71d28e796a8cbf3e661c7650be3f0197f404f (patch) | |
| tree | 50e3ae96326b70caced4cf5153c3810144452c00 /hw/arm | |
| parent | 2a02da74f286349c2d39c8a6102388219f476d8c (diff) | |
hw/arm: Add watchdog timer to Allwinner H40 and Bananapi board
Add watchdog timer support to Allwinner-H40 and Bananapi.
The watchdog timer is added as an overlay to the Timer
module memory map.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Strahinja Jankovic <strahinja.p.jankovic@gmail.com>
Message-id: 20240115182757.1095012-4-linux@roeck-us.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm')
| -rw-r--r-- | hw/arm/Kconfig | 1 | ||||
| -rw-r--r-- | hw/arm/allwinner-r40.c | 8 |
2 files changed, 9 insertions, 0 deletions
diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig index 704517edd4..2bc3ea3425 100644 --- a/hw/arm/Kconfig +++ b/hw/arm/Kconfig @@ -411,6 +411,7 @@ config ALLWINNER_R40 select AHCI select ALLWINNER_SRAMC select ALLWINNER_A10_PIT + select ALLWINNER_WDT select AXP2XX_PMU select SERIAL select ARM_TIMER diff --git a/hw/arm/allwinner-r40.c b/hw/arm/allwinner-r40.c index 534be4a735..a28e5b3886 100644 --- a/hw/arm/allwinner-r40.c +++ b/hw/arm/allwinner-r40.c @@ -53,6 +53,7 @@ const hwaddr allwinner_r40_memmap[] = { [AW_R40_DEV_OHCI2] = 0x01c1c400, [AW_R40_DEV_CCU] = 0x01c20000, [AW_R40_DEV_PIT] = 0x01c20c00, + [AW_R40_DEV_WDT] = 0x01c20c90, [AW_R40_DEV_UART0] = 0x01c28000, [AW_R40_DEV_UART1] = 0x01c28400, [AW_R40_DEV_UART2] = 0x01c28800, @@ -279,6 +280,8 @@ static void allwinner_r40_init(Object *obj) object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer), "clk1-freq"); + object_initialize_child(obj, "wdt", &s->wdt, TYPE_AW_WDT_SUN4I); + object_initialize_child(obj, "ccu", &s->ccu, TYPE_AW_R40_CCU); for (int i = 0; i < AW_R40_NUM_MMCS; i++) { @@ -545,6 +548,11 @@ static void allwinner_r40_realize(DeviceState *dev, Error **errp) sysbus_connect_irq(SYS_BUS_DEVICE(&s->emac), 0, qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_EMAC)); + /* WDT */ + sysbus_realize(SYS_BUS_DEVICE(&s->wdt), &error_fatal); + sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->wdt), 0, + allwinner_r40_memmap[AW_R40_DEV_WDT], 1); + /* Unimplemented devices */ for (unsigned i = 0; i < ARRAY_SIZE(r40_unimplemented); i++) { create_unimplemented_device(r40_unimplemented[i].device_name, |