Hi,
On 11/3/23 15:41, Strahinja Jankovic wrote:
This patch adds WDT to Allwinner-H3 and Orangepi-PC.
WDT is added as an overlay to the Timer module memory area.
Signed-off-by: Strahinja Jankovic <strahinja.p.janko...@gmail.com>
---
docs/system/arm/orangepi.rst | 1 +
hw/arm/Kconfig | 1 +
hw/arm/allwinner-h3.c | 8 ++++++++
include/hw/arm/allwinner-h3.h | 5 ++++-
4 files changed, 14 insertions(+), 1 deletion(-)
diff --git a/hw/arm/allwinner-h3.c b/hw/arm/allwinner-h3.c
index 69d0ad6f50..f05afddf7e 100644
--- a/hw/arm/allwinner-h3.c
+++ b/hw/arm/allwinner-h3.c
@@ -49,6 +49,7 @@ const hwaddr allwinner_h3_memmap[] = {
[AW_H3_DEV_OHCI3] = 0x01c1d400,
[AW_H3_DEV_CCU] = 0x01c20000,
[AW_H3_DEV_PIT] = 0x01c20c00,
+ [AW_H3_DEV_WDT] = 0x01c20ca0,
[AW_H3_DEV_UART0] = 0x01c28000,
[AW_H3_DEV_UART1] = 0x01c28400,
[AW_H3_DEV_UART2] = 0x01c28800,
@@ -234,6 +235,8 @@ static void allwinner_h3_init(Object *obj)
object_initialize_child(obj, "twi1", &s->i2c1, TYPE_AW_I2C_SUN6I);
object_initialize_child(obj, "twi2", &s->i2c2, TYPE_AW_I2C_SUN6I);
object_initialize_child(obj, "r_twi", &s->r_twi, TYPE_AW_I2C_SUN6I);
+
+ object_initialize_child(obj, "wdt", &s->wdt, TYPE_AW_WDT_SUN6I);
}
static void allwinner_h3_realize(DeviceState *dev, Error **errp)
@@ -453,6 +456,11 @@ static void allwinner_h3_realize(DeviceState *dev, Error
**errp)
sysbus_connect_irq(SYS_BUS_DEVICE(&s->r_twi), 0,
qdev_get_gpio_in(DEVICE(&s->gic),
AW_H3_GIC_SPI_R_TWI));
+ /* WDT */
+ sysbus_realize(SYS_BUS_DEVICE(&s->wdt), &error_fatal);
+ sysbus_mmio_map_overlap(SYS_BUS_DEVICE(&s->wdt), 0,
+ s->memmap[AW_H3_DEV_WDT], 1);
Why do you need to overlap?
