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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/mips/mti-malta/malta-memory.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/mips/mti-malta/malta-memory.c')
-rw-r--r--arch/mips/mti-malta/malta-memory.c44
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
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+++ b/arch/mips/mti-malta/malta-memory.c
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+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * PROM library functions for acquiring/using memory descriptors given to
+ * us from the YAMON.
+ *
+ * Copyright (C) 1999,2000,2012 MIPS Technologies, Inc.
+ * All rights reserved.
+ * Authors: Carsten Langgaard <carstenl@mips.com>
+ * Steven J. Hill <sjhill@mips.com>
+ */
+#include <linux/init.h>
+#include <linux/memblock.h>
+#include <linux/string.h>
+
+#include <asm/bootinfo.h>
+#include <asm/cdmm.h>
+#include <asm/maar.h>
+#include <asm/sections.h>
+#include <asm/fw/fw.h>
+
+/* determined physical memory size, not overridden by command line args */
+unsigned long physical_memsize = 0L;
+
+static void free_init_pages_eva_malta(void *begin, void *end)
+{
+ free_init_pages("unused kernel", __pa_symbol((unsigned long *)begin),
+ __pa_symbol((unsigned long *)end));
+}
+
+void __init fw_meminit(void)
+{
+ bool eva = IS_ENABLED(CONFIG_EVA);
+
+ free_init_pages_eva = eva ? free_init_pages_eva_malta : NULL;
+}
+
+phys_addr_t mips_cdmm_phys_base(void)
+{
+ /* This address is "typically unused" */
+ return 0x1fc10000;
+}