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authorDezhong Diao <dediao@cisco.com>2010-10-13 00:52:46 -0600
committerGrant Likely <grant.likely@secretlab.ca>2010-10-21 11:10:10 -0600
commitf2ffa5ab74f4dfd598860f96ca37a71c4d0a28a8 (patch)
treebe560fcb0633ab1e7c4cc0ff9e016e82f33c5712 /arch/mips/include/asm/prom.h
parent32c97689c46b272302053778f1a6c2facb0e220c (diff)
downloadblackbird-op-linux-f2ffa5ab74f4dfd598860f96ca37a71c4d0a28a8.tar.gz
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of/mips: Add device tree support to MIPS
Add the ability to enable CONFIG_OF on the MIPS architecture. Signed-off-by: Dezhong Diao <dediao@cisco.com> [grant.likely@secretlab.ca: cleared out obsolete hooks, removed ARCH_HAS_DEVTREE_MEM, remove __init tags from header file, removed debugfs support hunk] [ddaney@linux-mips.org: backed out over aggressive trimming of hooks] Acked-by: Ralf Baechle <ralf@linux-mips.org> Tested-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/mips/include/asm/prom.h')
-rw-r--r--arch/mips/include/asm/prom.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
new file mode 100644
index 000000000000..23f8237e18bb
--- /dev/null
+++ b/arch/mips/include/asm/prom.h
@@ -0,0 +1,35 @@
+/*
+ * arch/mips/include/asm/prom.h
+ *
+ * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#ifndef __ASM_MIPS_PROM_H
+#define __ASM_MIPS_PROM_H
+
+#ifdef CONFIG_OF
+#include <linux/init.h>
+
+#include <asm/setup.h>
+#include <asm/irq.h>
+#include <asm/bootinfo.h>
+
+/* which is compatible with the flattened device tree (FDT) */
+#define cmd_line arcs_cmdline
+
+extern int early_init_dt_scan_memory_arch(unsigned long node,
+ const char *uname, int depth, void *data);
+
+extern int reserve_mem_mach(unsigned long addr, unsigned long size);
+extern void free_mem_mach(unsigned long addr, unsigned long size);
+
+extern void __init device_tree_init(void);
+#else /* CONFIG_OF */
+static inline void __init device_tree_init(void) { }
+#endif /* CONFIG_OF */
+
+#endif /* _ASM_MIPS_PROM_H */
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