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Index: sys/conf/files.riscv
===================================================================
--- sys/conf/files.riscv
+++ sys/conf/files.riscv
@@ -59,6 +59,7 @@
riscv/riscv/plic.c standard
riscv/riscv/platform.c optional platform
riscv/riscv/platform_if.m optional platform
+riscv/riscv/platform_default.c optional platform platform_default
riscv/riscv/pmap.c standard
riscv/riscv/riscv_console.c optional rcons
riscv/riscv/sbi.c standard
Index: sys/conf/options.riscv
===================================================================
--- sys/conf/options.riscv
+++ sys/conf/options.riscv
@@ -4,4 +4,5 @@
FPE opt_global.h
INTRNG opt_global.h
PLATFORM opt_global.h
+PLATFORM_DEFAULT opt_global.h
SIFIVE_FU540 opt_global.h
Index: sys/riscv/riscv/platform.c
===================================================================
--- sys/riscv/riscv/platform.c
+++ sys/riscv/riscv/platform.c
@@ -103,6 +103,17 @@
*/
TUNABLE_STR_FETCH("hw.platform", plat_name, sizeof(plat_name));
+#ifdef PLATFORM_DEFAULT
+ /* Assign default platform */
+ SET_FOREACH(platpp, platform_set) {
+ platp = *platpp;
+ if (strcmp(platp->name, "default") == 0) {
+ plat_def_impl = platp;
+ break;
+ }
+ }
+#endif
+
/*
* Try to locate the best platform kobj
*/
@@ -135,7 +146,8 @@
}
/* Otherwise, see if it is better than our current best */
- if (plat_def_impl == NULL || prio > best_prio) {
+ if (plat_def_impl == NULL || strcmp(plat_def_impl->name, "default") == 0 ||
+ prio > best_prio) {
best_prio = prio;
plat_def_impl = platp;
}
Index: sys/riscv/riscv/platform_default.c
===================================================================
--- /dev/null
+++ sys/riscv/riscv/platform_default.c
@@ -0,0 +1,57 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2019 Axiado Corporation
+ * All rights reserved.
+ *
+ * This software was developed in part by Nick O'Brien for Axiado
+ * Corporation.
+ *
+ * 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 "opt_platform.h"
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+
+#include <machine/bus.h>
+#include <machine/machdep.h>
+#include <machine/platformvar.h>
+#include <machine/smp.h>
+
+#include "platform_if.h"
+
+#if defined(PLATFORM_DEFAULT)
+
+static platform_method_t default_methods[] = {
+
+ PLATFORMMETHOD_END,
+};
+
+FDT_PLATFORM_DEF(default, "default", 0, "default,default");
+
+#endif /* PLATFORM_DEFAULT */

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