add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/nios2/kernel/cpuinfo.c
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@@ -1,22 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2013 Altera Corporation
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  * Copyright (C) 2011 Tobias Klauser <tklauser@distanz.ch>
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  *
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  * Based on cpuinfo.c from microblaze
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or
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- * (at your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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- *
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  */
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 #include <linux/kernel.h>
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@@ -47,7 +34,7 @@
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 	const char *str;
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 	int len;
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-	cpu = of_find_node_by_type(NULL, "cpu");
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+	cpu = of_get_cpu_node(0, NULL);
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 	if (!cpu)
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 		panic("%s: No CPU found in devicetree!\n", __func__);
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@@ -120,6 +107,8 @@
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 	cpuinfo.reset_addr = fcpu(cpu, "altr,reset-addr");
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 	cpuinfo.exception_addr = fcpu(cpu, "altr,exception-addr");
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 	cpuinfo.fast_tlb_miss_exc_addr = fcpu(cpu, "altr,fast-tlb-miss-addr");
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+
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+	of_node_put(cpu);
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 }
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 #ifdef CONFIG_PROC_FS