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D41888.id127455.diff
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D41888.id127455.diff

diff --git a/sys/arm/ti/clk/ti_clksel.h b/sys/arm/ti/clk/ti_clksel.h
new file mode 100644
--- /dev/null
+++ b/sys/arm/ti/clk/ti_clksel.h
@@ -0,0 +1,32 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2023 Oskar Holmlund <oskar.holmlund@ohdata.se>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#ifndef __TI_CLKSEL__
+#define __TI_CLKSEL__
+
+uint32_t ti_clksel_get_reg(device_t dev);
+
+#endif /* __TI_CLKSEL__ */
diff --git a/sys/arm/ti/clk/ti_clksel.c b/sys/arm/ti/clk/ti_clksel.c
new file mode 100644
--- /dev/null
+++ b/sys/arm/ti/clk/ti_clksel.c
@@ -0,0 +1,161 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2019 Emmanuel Vadot <manu@FreeBSD.org>
+ * Copyright (c) 2020-2023 Oskar Holmlund <oskar.holmlund@ohdata.se>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Based on sys/arm/ti/ti_sysc.c
+ */
+
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/fbio.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/rman.h>
+#include <sys/resource.h>
+#include <machine/bus.h>
+#include <vm/vm.h>
+#include <vm/vm_extern.h>
+#include <vm/vm_kern.h>
+#include <vm/pmap.h>
+
+#include <dev/fdt/simplebus.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <arm/ti/clk/ti_clksel.h>
+
+static struct ofw_compat_data compat_data[] = {
+ { "ti,clksel", 1 },
+ { NULL, 0 }
+};
+
+struct ti_clksel_softc {
+ struct simplebus_softc sc;
+ device_t dev;
+ uint32_t reg;
+};
+
+uint32_t ti_clksel_get_reg(device_t dev)
+{
+ struct ti_clksel_softc *sc;
+ sc = device_get_softc(dev);
+ return sc->reg;
+}
+
+static int ti_clksel_probe(device_t dev);
+static int ti_clksel_attach(device_t dev);
+static int ti_clksel_detach(device_t dev);
+
+static int
+ti_clksel_probe(device_t dev)
+{
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+
+ if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "TI CLKSEL");
+ if (!bootverbose)
+ device_quiet(dev);
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+ti_clksel_attach(device_t dev)
+{
+ struct ti_clksel_softc *sc;
+ device_t cdev;
+ phandle_t node, child;
+ cell_t reg;
+ ssize_t nreg;
+
+ sc = device_get_softc(dev);
+ sc->dev = dev;
+ node = ofw_bus_get_node(dev);
+
+ /* Grab the content of reg properties */
+ nreg = OF_getproplen(node, "reg");
+ device_printf(dev, "Requires reg %d\n", (int)nreg/sizeof(cell_t));
+#if 0
+ if (nreg != 1) {
+ device_printf(dev, "Requires reg\n");
+ return (ENXIO);
+ }
+#endif
+
+ simplebus_init(dev, node);
+
+ OF_getencprop(node, "reg", &reg, nreg);
+
+ sc->reg = reg;
+ device_printf(sc->dev, "Register: %#jx\n", sc->reg);
+
+#if 0
+ if (simplebus_fill_ranges(node, &sc->sc) < 0) {
+ device_printf(dev, "could not get ranges\n");
+ return (ENXIO);
+ }
+#endif
+
+ bus_generic_probe(sc->dev);
+
+ for (child = OF_child(node); child > 0; child = OF_peer(child)) {
+ cdev = simplebus_add_device(dev, child, 0, NULL, -1, NULL);
+ if (cdev != NULL)
+ device_probe_and_attach(cdev);
+ }
+
+ return (bus_generic_attach(dev));
+}
+
+static int
+ti_clksel_detach(device_t dev)
+{
+ return (EBUSY);
+}
+
+static device_method_t ti_clksel_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, ti_clksel_probe),
+ DEVMETHOD(device_attach, ti_clksel_attach),
+ DEVMETHOD(device_detach, ti_clksel_detach),
+
+ DEVMETHOD_END
+};
+
+DEFINE_CLASS_1(ti_clksel, ti_clksel_driver, ti_clksel_methods,
+ sizeof(struct ti_clksel_softc), simplebus_driver);
+
+EARLY_DRIVER_MODULE(ti_clksel, simplebus, ti_clksel_driver, 0, 0,
+ BUS_PASS_BUS + BUS_PASS_ORDER_FIRST);
+
+EARLY_DRIVER_MODULE(ti_clksel, ofwbus, ti_clksel_driver, 0, 0,
+ BUS_PASS_BUS + BUS_PASS_ORDER_FIRST);
diff --git a/sys/arm/ti/files.ti b/sys/arm/ti/files.ti
--- a/sys/arm/ti/files.ti
+++ b/sys/arm/ti/files.ti
@@ -27,6 +27,7 @@
arm/ti/clk/ti_mux_clock.c standard
arm/ti/clk/ti_divider_clock.c standard
arm/ti/clk/ti_gate_clock.c standard
+arm/ti/clk/ti_clksel.c standard
dev/uart/uart_dev_ti8250.c optional uart
dev/uart/uart_dev_ns8250.c optional uart

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