Date: Sat, 24 Jan 2015 20:34:15 +0000 (UTC) From: Nathan Whitehorn <nwhitehorn@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r277657 - projects/powernv/powerpc/powernv Message-ID: <201501242034.t0OKYFcm078551@svn.freebsd.org>
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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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