1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
36 #include <dev/fdt/simplebus.h>
38 #include <dev/clk/clk.h>
39 #include <dev/clk/clk_fixed.h>
40 #include <dev/syscon/syscon.h>
42 #include <dev/ofw/ofw_bus.h>
43 #include <dev/ofw/ofw_bus_subr.h>
53 	device_t 		dev;  member
57 static int a37x0_xtal_attach(device_t dev);
58 static int a37x0_xtal_detach(device_t dev);
59 static int a37x0_xtal_probe(device_t dev);
69 	"a37x0-xtal",
78 a37x0_xtal_attach(device_t dev)  in a37x0_xtal_attach()  argument
82 	struct syscon *syscon;  in a37x0_xtal_attach()  local
86 	sc = device_get_softc(dev);  in a37x0_xtal_attach()
88 	def.clkdef.name = "armada-3700-xtal";  in a37x0_xtal_attach()
95 	if (SYSCON_GET_HANDLE(dev, &syscon) != 0 || syscon == NULL){  in a37x0_xtal_attach()
96 		device_printf(dev, "Cannot get syscon driver handle\n");  in a37x0_xtal_attach()
100 	reg = SYSCON_READ_4(syscon, NB_GPIO1_PIN_LT_L);  in a37x0_xtal_attach()
106 	sc->clkdom = clkdom_create(dev);  in a37x0_xtal_attach()
107 	error = clknode_fixed_register(sc->clkdom, &def);  in a37x0_xtal_attach()
109 		device_printf(dev, "Cannot register clock node\n");  in a37x0_xtal_attach()
113 	error = clkdom_finit(sc->clkdom);  in a37x0_xtal_attach()
115 		device_printf(dev, "Cannot finalize clock domain initialization\n");  in a37x0_xtal_attach()
120 		clkdom_dump(sc->clkdom);  in a37x0_xtal_attach()
126 a37x0_xtal_probe(device_t dev)  in a37x0_xtal_probe()  argument
129 	if (!ofw_bus_status_okay(dev))  in a37x0_xtal_probe()
132 	if (!ofw_bus_is_compatible(dev, "marvell,armada-3700-xtal-clock"))  in a37x0_xtal_probe()
135 	device_set_desc(dev, "Marvell Armada 3700 Oscillator");  in a37x0_xtal_probe()
140 a37x0_xtal_detach(device_t dev)  in a37x0_xtal_detach()  argument