svn commit: r277657 - projects/powernv/powerpc/powernv
Nathan Whitehorn
nwhitehorn at FreeBSD.org
Sat Jan 24 20:34:17 UTC 2015
Author: nwhitehorn
Date: Sat Jan 24 20:34:15 2015
New Revision: 277657
URL: https://svnweb.freebsd.org/changeset/base/277657
Log:
Add basic power control (reset, power off) and bind ttyuX to opal console so that
init will start login there.
Sponsored by: FreeBSD Foundation
Added:
projects/powernv/powerpc/powernv/opal_dev.c (contents, props changed)
Modified:
projects/powernv/powerpc/powernv/opal.h
projects/powernv/powerpc/powernv/opal_console.c
projects/powernv/powerpc/powernv/platform_powernv.c
Modified: projects/powernv/powerpc/powernv/opal.h
==============================================================================
--- projects/powernv/powerpc/powernv/opal.h Sat Jan 24 20:25:21 2015 (r277656)
+++ projects/powernv/powerpc/powernv/opal.h Sat Jan 24 20:34:15 2015 (r277657)
@@ -40,6 +40,8 @@ int opal_call(uint64_t token, ...);
#define OPAL_CONSOLE_WRITE 1
#define OPAL_CONSOLE_READ 2
+#define OPAL_CEC_POWER_DOWN 5
+#define OPAL_CEC_REBOOT 6
#define OPAL_SET_XIVE 19
#define OPAL_GET_XIVE 20
#define OPAL_START_CPU 41
Modified: projects/powernv/powerpc/powernv/opal_console.c
==============================================================================
--- projects/powernv/powerpc/powernv/opal_console.c Sat Jan 24 20:25:21 2015 (r277656)
+++ projects/powernv/powerpc/powernv/opal_console.c Sat Jan 24 20:34:15 2015 (r277657)
@@ -437,3 +437,76 @@ uart_opal_intr(void *v)
callout_reset(&sc->callout, sc->polltime, uart_opal_intr, sc);
}
+static int
+opalcons_probe(device_t dev)
+{
+ const char *name;
+
+ name = ofw_bus_get_name(dev);
+ if (name == NULL || strcmp(name, "consoles") != 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "OPAL Consoles");
+ return (BUS_PROBE_SPECIFIC);
+}
+
+static int
+opalcons_attach(device_t dev)
+{
+ phandle_t child;
+ device_t cdev;
+ struct ofw_bus_devinfo *dinfo;
+
+ for (child = OF_child(ofw_bus_get_node(dev)); child != 0;
+ child = OF_peer(child)) {
+ dinfo = malloc(sizeof(*dinfo), M_DEVBUF, M_WAITOK | M_ZERO);
+ if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) {
+ free(dinfo, M_DEVBUF);
+ continue;
+ }
+ cdev = device_add_child(dev, NULL, -1);
+ if (cdev == NULL) {
+ device_printf(dev, "<%s>: device_add_child failed\n",
+ dinfo->obd_name);
+ ofw_bus_gen_destroy_devinfo(dinfo);
+ free(dinfo, M_DEVBUF);
+ continue;
+ }
+ device_set_ivars(cdev, dinfo);
+ }
+
+ return (bus_generic_attach(dev));
+}
+
+static const struct ofw_bus_devinfo *
+opalcons_get_devinfo(device_t dev, device_t child)
+{
+ return (device_get_ivars(child));
+}
+
+static device_method_t opalcons_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, opalcons_probe),
+ DEVMETHOD(device_attach, opalcons_attach),
+
+ /* ofw_bus interface */
+ DEVMETHOD(ofw_bus_get_devinfo, opalcons_get_devinfo),
+ DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
+ DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
+ DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
+ DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
+ DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
+
+ DEVMETHOD_END
+};
+
+static driver_t opalcons_driver = {
+ "opalcons",
+ opalcons_methods,
+ 0
+};
+
+static devclass_t opalcons_devclass;
+
+DRIVER_MODULE(opalcons, opal, opalcons_driver, opalcons_devclass, 0, 0);
+
Added: projects/powernv/powerpc/powernv/opal_dev.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ projects/powernv/powerpc/powernv/opal_dev.c Sat Jan 24 20:34:15 2015 (r277657)
@@ -0,0 +1,162 @@
+/*-
+ * Copyright (c) 2015 Nathan Whitehorn
+ * All rights reserved.
+ *
+ * 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/module.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/clock.h>
+#include <sys/cpu.h>
+#include <sys/kernel.h>
+#include <sys/reboot.h>
+#include <sys/sysctl.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#include <dev/ofw/openfirm.h>
+
+#include "clock_if.h"
+#include "opal.h"
+
+static int opaldev_probe(device_t);
+static int opaldev_attach(device_t);
+/* clock interface */
+static int opal_gettime(device_t dev, struct timespec *ts);
+static int opal_settime(device_t dev, struct timespec *ts);
+/* ofw bus interface */
+static const struct ofw_bus_devinfo *opaldev_get_devinfo(device_t dev,
+ device_t child);
+
+static void opal_shutdown(void *arg, int howto);
+
+static device_method_t opaldev_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, opaldev_probe),
+ DEVMETHOD(device_attach, opaldev_attach),
+
+ /* clock interface */
+ DEVMETHOD(clock_gettime, opal_gettime),
+ DEVMETHOD(clock_settime, opal_settime),
+
+ /* ofw_bus interface */
+ DEVMETHOD(ofw_bus_get_devinfo, opaldev_get_devinfo),
+ DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat),
+ DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model),
+ DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name),
+ DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node),
+ DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type),
+
+ DEVMETHOD_END
+};
+
+static driver_t opaldev_driver = {
+ "opal",
+ opaldev_methods,
+ 0
+};
+
+static devclass_t opaldev_devclass;
+
+DRIVER_MODULE(opaldev, ofwbus, opaldev_driver, opaldev_devclass, 0, 0);
+
+static int
+opaldev_probe(device_t dev)
+{
+
+ if (!ofw_bus_is_compatible(dev, "ibm,opal-v3"))
+ return (ENXIO);
+ if (opal_check() != 0)
+ return (ENXIO);
+
+ device_set_desc(dev, "OPAL Abstraction Firmware");
+ return (BUS_PROBE_SPECIFIC);
+}
+
+static int
+opaldev_attach(device_t dev)
+{
+ phandle_t child;
+ device_t cdev;
+ struct ofw_bus_devinfo *dinfo;
+
+ if (0 /* XXX NOT YET TEST FOR RTC */)
+ clock_register(dev, 2000);
+
+ EVENTHANDLER_REGISTER(shutdown_final, opal_shutdown, NULL,
+ SHUTDOWN_PRI_LAST);
+
+ for (child = OF_child(ofw_bus_get_node(dev)); child != 0;
+ child = OF_peer(child)) {
+ dinfo = malloc(sizeof(*dinfo), M_DEVBUF, M_WAITOK | M_ZERO);
+ if (ofw_bus_gen_setup_devinfo(dinfo, child) != 0) {
+ free(dinfo, M_DEVBUF);
+ continue;
+ }
+ cdev = device_add_child(dev, NULL, -1);
+ if (cdev == NULL) {
+ device_printf(dev, "<%s>: device_add_child failed\n",
+ dinfo->obd_name);
+ ofw_bus_gen_destroy_devinfo(dinfo);
+ free(dinfo, M_DEVBUF);
+ continue;
+ }
+ device_set_ivars(cdev, dinfo);
+ }
+
+ return (bus_generic_attach(dev));
+}
+
+static int
+opal_gettime(device_t dev, struct timespec *ts) {
+ return (ENXIO);
+}
+
+static int
+opal_settime(device_t dev, struct timespec *ts)
+{
+ return (0);
+}
+
+static const struct ofw_bus_devinfo *
+opaldev_get_devinfo(device_t dev, device_t child)
+{
+ return (device_get_ivars(child));
+}
+
+static void
+opal_shutdown(void *arg, int howto)
+{
+
+ if (howto & RB_HALT)
+ opal_call(OPAL_CEC_POWER_DOWN, 0 /* Normal power off */);
+ else
+ opal_call(OPAL_CEC_REBOOT);
+}
+
Modified: projects/powernv/powerpc/powernv/platform_powernv.c
==============================================================================
--- projects/powernv/powerpc/powernv/platform_powernv.c Sat Jan 24 20:25:21 2015 (r277656)
+++ projects/powernv/powerpc/powernv/platform_powernv.c Sat Jan 24 20:34:15 2015 (r277657)
@@ -324,6 +324,8 @@ powernv_smp_topo(platform_t plat)
static void
powernv_reset(platform_t platform)
{
+
+ opal_call(OPAL_CEC_REBOOT);
}
static void
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