add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/mips/rb532/prom.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  *  RouterBoard 500 specific prom routines
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  *
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@@ -6,22 +7,6 @@
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  *  Copyright (C) 2007, Gabor Juhos <juhosg@openwrt.org>
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  *			Felix Fietkau <nbd@openwrt.org>
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  *			Florian Fainelli <florian@openwrt.org>
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- *
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- *  This program is free software; you can redistribute it and/or
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- *  modify it under the terms of the GNU General Public License
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- *  as published by the Free Software Foundation; either version 2
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- *  of the License, or (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, write to the
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- *  Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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- *  Boston, MA  02110-1301, USA.
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- *
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  */
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 #include <linux/init.h>
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@@ -29,7 +14,7 @@
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 #include <linux/export.h>
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 #include <linux/string.h>
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 #include <linux/console.h>
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-#include <linux/bootmem.h>
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+#include <linux/memblock.h>
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 #include <linux/ioport.h>
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 #include <linux/blkdev.h>
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@@ -125,7 +110,7 @@
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 	phys_addr_t memsize;
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 	phys_addr_t ddrbase;
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-	ddr = ioremap_nocache(ddr_reg[0].start,
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+	ddr = ioremap(ddr_reg[0].start,
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 			ddr_reg[0].end - ddr_reg[0].start);
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 	if (!ddr) {
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@@ -141,5 +126,5 @@
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 	/* give all RAM to boot allocator,
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 	 * except for the first 0x400 and the last 0x200 bytes */
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-	add_memory_region(ddrbase + 0x400, memsize - 0x600, BOOT_MEM_RAM);
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+	memblock_add(ddrbase + 0x400, memsize - 0x600);
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 }