Module Name: src
Committed By: riastradh
Date: Tue Dec 11 19:06:23 UTC 2012
Added Files:
src/sys/arch/arm/omap: am335x_dmtimer.c
Log Message:
AM335x driver attachment goop for omapdmtimer.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/omap/am335x_dmtimer.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/sys/arch/arm/omap/am335x_dmtimer.c
diff -u /dev/null src/sys/arch/arm/omap/am335x_dmtimer.c:1.1
--- /dev/null Tue Dec 11 19:06:23 2012
+++ src/sys/arch/arm/omap/am335x_dmtimer.c Tue Dec 11 19:06:23 2012
@@ -0,0 +1,144 @@
+/* $NetBSD: am335x_dmtimer.c,v 1.1 2012/12/11 19:06:23 riastradh Exp $ */
+
+/*
+ * TI OMAP Dual-mode timer attachments for AM335x
+ */
+
+/*-
+ * Copyright (c) 2012 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Taylor R. Campbell.
+ *
+ * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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>
+__KERNEL_RCSID(0, "$NetBSD: am335x_dmtimer.c,v 1.1 2012/12/11 19:06:23 riastradh Exp $");
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+
+#include <arm/omap/am335x_prcm.h>
+
+#include <arm/omap/omap2_obiovar.h>
+#include <arm/omap/omap_dmtimervar.h>
+
+#ifndef STATHZ
+# define STATHZ 97
+#endif
+
+struct am335x_dmtimer {
+ const char *ad_name;
+ unsigned int ad_version;
+ bus_addr_t ad_base_addr;
+ int ad_intr;
+ struct omap_module ad_module;
+};
+
+static const struct am335x_dmtimer am335x_dmtimers[] = {
+ { "DMTIMER0", 2, 0x44e05000, 66, { AM335X_PRCM_CM_WKUP, 0x10 } },
+ { "DMTIMER1ms", 1, 0x44e31000, 67, { AM335X_PRCM_CM_WKUP, 0xc4 } },
+ { "DMTIMER2", 2, 0x48040000, 68, { AM335X_PRCM_CM_PER, 0x80 } },
+ { "DMTIMER3", 2, 0x48042000, 69, { AM335X_PRCM_CM_PER, 0x84 } },
+ { "DMTIMER4", 2, 0x48044000, 92, { AM335X_PRCM_CM_PER, 0x88 } },
+ { "DMTIMER5", 2, 0x48046000, 93, { AM335X_PRCM_CM_PER, 0xec } },
+ { "DMTIMER6", 2, 0x48048000, 94, { AM335X_PRCM_CM_PER, 0xf0 } },
+ { "DMTIMER7", 2, 0x4804a000, 95, { AM335X_PRCM_CM_PER, 0x7c } },
+};
+
+static int am335x_dmtimer_match(device_t, cfdata_t, void *);
+static void am335x_dmtimer_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(omap_dmtimer_obio, sizeof(struct omap_dmtimer_softc),
+ am335x_dmtimer_match, am335x_dmtimer_attach, NULL, NULL);
+
+static int
+am335x_dmtimer_match(device_t parent, cfdata_t match, void *aux)
+{
+ struct obio_attach_args *obio = aux;
+ size_t i;
+
+ if (obio->obio_size != 0x1000)
+ return 0;
+
+ for (i = 0; i < __arraycount(am335x_dmtimers); i++)
+ if ((obio->obio_addr == am335x_dmtimers[i].ad_base_addr) &&
+ (obio->obio_intr == am335x_dmtimers[i].ad_intr))
+ return 1;
+
+ return 0;
+}
+
+static void
+am335x_dmtimer_attach(device_t parent, device_t self, void *aux)
+{
+ struct omap_dmtimer_softc *sc = device_private(self);
+ struct obio_attach_args *obio = aux;
+ const struct am335x_dmtimer *ad = NULL;
+ size_t i;
+
+ for (i = 0; i < __arraycount(am335x_dmtimers); i++)
+ if ((obio->obio_addr == am335x_dmtimers[i].ad_base_addr) &&
+ (obio->obio_intr == am335x_dmtimers[i].ad_intr)) {
+ ad = &am335x_dmtimers[i];
+ break;
+ }
+
+ KASSERT(ad != NULL);
+ aprint_normal(": %s\n", ad->ad_name);
+
+ sc->sc_dev = self;
+ sc->sc_module = &ad->ad_module;
+ sc->sc_version = ad->ad_version;
+ sc->sc_intr = ad->ad_intr;
+ sc->sc_iot = obio->obio_iot;
+
+ KASSERT(obio->obio_size == 0x1000);
+ if (bus_space_map(obio->obio_iot, obio->obio_addr, obio->obio_size, 0,
+ &sc->sc_ioh) != 0)
+ panic("%s: unable to map bus space", device_xname(self));
+
+ /* XXX Crock. */
+ switch (device_unit(self)) {
+ case 0:
+ omap_dmtimer_attach_hardclock(sc);
+ break;
+
+ case 1:
+ omap_dmtimer_attach_timecounter(sc);
+ break;
+
+ case 2:
+ KASSERT(stathz == 0);
+ profhz = stathz = STATHZ;
+ omap_dmtimer_attach_statclock(sc);
+ break;
+
+ default:
+ panic("%s: but what am I to do?", device_xname(self));
+ }
+}
