Module Name: src
Committed By: jakllsch
Date: Fri Jun 15 15:07:56 UTC 2018
Modified Files:
src/sys/dev/fdt: files.fdt
Added Files:
src/sys/dev/fdt: qemufwcfg_fdt.c
Log Message:
add FDT "qemu,fw-cfg-mmio" glue for qemufwcfg
To generate a diff of this commit:
cvs rdiff -u -r1.29 -r1.30 src/sys/dev/fdt/files.fdt
cvs rdiff -u -r0 -r1.1 src/sys/dev/fdt/qemufwcfg_fdt.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/fdt/files.fdt
diff -u src/sys/dev/fdt/files.fdt:1.29 src/sys/dev/fdt/files.fdt:1.30
--- src/sys/dev/fdt/files.fdt:1.29 Wed Jun 6 20:35:36 2018
+++ src/sys/dev/fdt/files.fdt Fri Jun 15 15:07:56 2018
@@ -1,4 +1,4 @@
-# $NetBSD: files.fdt,v 1.29 2018/06/06 20:35:36 jakllsch Exp $
+# $NetBSD: files.fdt,v 1.30 2018/06/15 15:07:56 jakllsch Exp $
include "external/bsd/libfdt/conf/files.libfdt"
@@ -95,3 +95,7 @@ file dev/fdt/dwc3_fdt.c dwc3_fdt
# Virtio virtio,mmio
attach virtio at fdt with virtio_mmio_fdt: virtio_mmio
file dev/fdt/virtio_mmio_fdt.c virtio_mmio_fdt
+
+# QEMU Firmware Configuration (fw_cfg) device
+attach qemufwcfg at fdt with qemufwcfg_fdt
+file dev/fdt/qemufwcfg_fdt.c qemufwcfg_fdt
Added files:
Index: src/sys/dev/fdt/qemufwcfg_fdt.c
diff -u /dev/null src/sys/dev/fdt/qemufwcfg_fdt.c:1.1
--- /dev/null Fri Jun 15 15:07:56 2018
+++ src/sys/dev/fdt/qemufwcfg_fdt.c Fri Jun 15 15:07:56 2018
@@ -0,0 +1,93 @@
+/* $NetBSD: qemufwcfg_fdt.c,v 1.1 2018/06/15 15:07:56 jakllsch Exp $ */
+
+/*-
+ * Copyright (c) 2017 Jared McNeill <jmcne...@invisible.ca>
+ * 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: qemufwcfg_fdt.c,v 1.1 2018/06/15 15:07:56 jakllsch Exp $");
+
+#include <sys/param.h>
+#include <sys/device.h>
+#include <sys/systm.h>
+#include <sys/mutex.h>
+#include <sys/bus.h>
+
+#include <dev/fdt/fdtvar.h>
+
+#include <dev/ic/qemufwcfgvar.h>
+
+static int fwcfg_fdt_match(device_t, cfdata_t, void *);
+static void fwcfg_fdt_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(qemufwcfg_fdt, sizeof(struct fwcfg_softc),
+ fwcfg_fdt_match,
+ fwcfg_fdt_attach,
+ NULL,
+ NULL
+);
+
+static const char * const compatible[] = {
+ "qemu,fw-cfg-mmio",
+ NULL
+};
+
+
+static int
+fwcfg_fdt_match(device_t parent, cfdata_t match, void *opaque)
+{
+ struct fdt_attach_args * const faa = opaque;
+
+ return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+fwcfg_fdt_attach(device_t parent, device_t self, void *opaque)
+{
+ struct fwcfg_softc *sc = device_private(self);
+ struct fdt_attach_args * const faa = opaque;
+ bus_addr_t base;
+ bus_size_t size;
+
+ if (fdtbus_get_reg(faa->faa_phandle, 0, &base, &size) != 0) {
+ aprint_error_dev(self, "couldn't get registers\n");
+ return;
+ }
+
+ sc->sc_dev = self;
+ sc->sc_bst = faa->faa_bst;
+
+ if (bus_space_map(sc->sc_bst, base, size, 0, &sc->sc_bsh) != 0) {
+ aprint_error_dev(self, "couldn't map registers\n");
+ return;
+ }
+
+ aprint_naive("\n");
+ aprint_normal("\n");
+
+ fwcfg_attach(sc);
+
+ pmf_device_register(self, NULL, NULL);
+}
