[src/trunk]: src/sys/arch/arm/fdt Add fdt glue for plrtc

[jmcneill <jmcneill%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/33ee0051f8d0
branches:  trunk
changeset: 824558:33ee0051f8d0
user:      jmcneill <jmcneill%NetBSD.org@localhost>
date:      Thu Jun 08 21:01:06 2017 +0000

description:
Add fdt glue for plrtc

diffstat:

 sys/arch/arm/fdt/files.fdt   |   5 ++-
 sys/arch/arm/fdt/plrtc_fdt.c |  85 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+), 1 deletions(-)

diffs (107 lines):

diff -r d88f849672bb -r 33ee0051f8d0 sys/arch/arm/fdt/files.fdt
--- a/sys/arch/arm/fdt/files.fdt        Thu Jun 08 21:00:43 2017 +0000
+++ b/sys/arch/arm/fdt/files.fdt        Thu Jun 08 21:01:06 2017 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.10 2017/06/08 10:03:59 jmcneill Exp $
+# $NetBSD: files.fdt,v 1.11 2017/06/08 21:01:06 jmcneill Exp $
 
 include        "dev/pckbport/files.pckbport"
 
@@ -35,5 +35,8 @@
 attach aaci at fdt with aaci_fdt
 file   arch/arm/fdt/aaci_fdt.c                 aaci_fdt
 
+attach plrtc at fdt with plrtc_fdt
+file   arch/arm/fdt/plrtc_fdt.c                plrtc_fdt
+
 # Console parameters
 defparam opt_fdt_arm.h                         CONSADDR
diff -r d88f849672bb -r 33ee0051f8d0 sys/arch/arm/fdt/plrtc_fdt.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/arm/fdt/plrtc_fdt.c      Thu Jun 08 21:01:06 2017 +0000
@@ -0,0 +1,85 @@
+/* $NetBSD: plrtc_fdt.c,v 1.1 2017/06/08 21:01:06 jmcneill Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <jmcneill%invisible.ca@localhost>
+ * 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 ``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.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: plrtc_fdt.c,v 1.1 2017/06/08 21:01:06 jmcneill Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#include <dev/ic/pl031var.h>
+
+static int     plrtc_fdt_match(device_t, cfdata_t, void *);
+static void    plrtc_fdt_attach(device_t, device_t, void *);
+
+static const char * const compatible[] = {
+       "arm,pl031",
+       NULL
+};
+
+CFATTACH_DECL_NEW(plrtc_fdt, sizeof(struct plrtc_softc),
+       plrtc_fdt_match, plrtc_fdt_attach, NULL, NULL);
+
+static int
+plrtc_fdt_match(device_t parent, cfdata_t cf, void *aux)
+{
+       struct fdt_attach_args * const faa = aux;
+
+       return of_compatible(faa->faa_phandle, compatible) >= 0;
+}
+
+static void
+plrtc_fdt_attach(device_t parent, device_t self, void *aux)
+{
+       struct plrtc_softc * const sc = device_private(self);
+       struct fdt_attach_args * const faa = aux;
+       const int phandle = faa->faa_phandle;
+       bus_addr_t addr;
+       bus_size_t size;
+
+       if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+               aprint_error(": missing 'reg' property\n");
+               return;
+       }
+
+       sc->sc_dev = self;
+       sc->sc_bst = faa->faa_bst;
+       if (bus_space_map(faa->faa_bst, addr, size, 0, &sc->sc_bsh)) {
+               aprint_error(": couldn't map device\n");
+               return;
+       }
+
+       plrtc_attach(sc);
+
+       fdtbus_todr_attach(self, phandle, &sc->sc_todr);
+}