From 5fecbf0f0cc9168da1b003a115ac18fe722f293a Mon Sep 17 00:00:00 2001 From: Roman Kapl Date: Fri, 7 Feb 2020 10:55:29 +0100 Subject: i.MX: Add support for WDT on i.MX6 Uses the i.MX2 rudimentary watchdog driver. Signed-off-by: Roman Kapl Message-id: 20200207095529.11309-1-rka@sysgo.com Reviewed-by: Peter Maydell [PMM: removed accidental duplicate #include line] Signed-off-by: Peter Maydell --- hw/arm/fsl-imx6.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'hw/arm/fsl-imx6.c') diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c index 552145b..ecc6285 100644 --- a/hw/arm/fsl-imx6.c +++ b/hw/arm/fsl-imx6.c @@ -91,6 +91,12 @@ static void fsl_imx6_init(Object *obj) sysbus_init_child_obj(obj, name, &s->spi[i], sizeof(s->spi[i]), TYPE_IMX_SPI); } + for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) { + snprintf(name, NAME_SIZE, "wdt%d", i); + sysbus_init_child_obj(obj, name, &s->wdt[i], sizeof(s->wdt[i]), + TYPE_IMX2_WDT); + } + sysbus_init_child_obj(obj, "eth", &s->eth, sizeof(s->eth), TYPE_IMX_ENET); } @@ -383,6 +389,21 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp) qdev_get_gpio_in(DEVICE(&s->a9mpcore), FSL_IMX6_ENET_MAC_1588_IRQ)); + /* + * Watchdog + */ + for (i = 0; i < FSL_IMX6_NUM_WDTS; i++) { + static const hwaddr FSL_IMX6_WDOGn_ADDR[FSL_IMX6_NUM_WDTS] = { + FSL_IMX6_WDOG1_ADDR, + FSL_IMX6_WDOG2_ADDR, + }; + + object_property_set_bool(OBJECT(&s->wdt[i]), true, "realized", + &error_abort); + + sysbus_mmio_map(SYS_BUS_DEVICE(&s->wdt[i]), 0, FSL_IMX6_WDOGn_ADDR[i]); + } + /* ROM memory */ memory_region_init_rom(&s->rom, NULL, "imx6.rom", FSL_IMX6_ROM_SIZE, &err); -- cgit v1.1