1/*-
2 * Copyright (C) 2009 Nathan Whitehorn
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.

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20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/sys/dev/ofw/ofw_cpu.c 276162 2014-12-24 01:19:11Z ian $");
29
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/malloc.h>
35#include <sys/bus.h>
36#include <sys/cpu.h>

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188 sc = device_get_softc(dev);
189 node = ofw_bus_get_node(dev);
190 if (OF_getencprop(node, "reg", &cell, sizeof(cell)) < 0) {
191 cell = device_get_unit(dev);
192 device_printf(dev, "missing 'reg' property, using %u\n", cell);
193 }
194 sc->sc_cpu_pcpu = pcpu_find(cell);
195 if (OF_getencprop(node, "clock-frequency", &cell, sizeof(cell)) < 0) {
196 device_printf(dev, "missing 'clock-frequency' property\n");
197 return (ENXIO);
198 }
199 sc->sc_nominal_mhz = cell / 1000000; /* convert to MHz */
200
201 bus_generic_probe(dev);
202 return (bus_generic_attach(dev));
203}
204
205static int
206ofw_cpu_read_ivar(device_t dev, device_t child, int index, uintptr_t *result)
207{
208 struct ofw_cpu_softc *sc;
209
210 sc = device_get_softc(dev);
211
212 switch (index) {
213 case CPU_IVAR_PCPU:
214 *result = (uintptr_t)sc->sc_cpu_pcpu;
215 return (0);
216 case CPU_IVAR_NOMINAL_MHZ:
217 *result = (uintptr_t)sc->sc_nominal_mhz;
218 return (0);
219 }
220
221 return (ENOENT);
222}
223