1 files changed, 59 insertions, 0 deletions
diff --git a/arch/mips/mti-malta/malta-memory.c b/arch/mips/mti-malta/malta-memory.c
new file mode 100644
index 000000000..a47556723
--- /dev/null
+++ b/arch/mips/mti-malta/malta-memory.c
@@ -0,0 +1,59 @@
+/*
+ * 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/bootmem.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;
+}
+
+void __init prom_free_prom_memory(void)
+{
+	unsigned long addr;
+	int i;
+
+	for (i = 0; i < boot_mem_map.nr_map; i++) {
+		if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
+			continue;
+
+		addr = boot_mem_map.map[i].addr;
+		free_init_pages("YAMON memory",
+				addr, addr + boot_mem_map.map[i].size);
+	}
+}
+
+phys_addr_t mips_cdmm_phys_base(void)
+{
+	/* This address is "typically unused" */
+	return 0x1fc10000;
+}