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authorKumar Gala <galak@kernel.crashing.org>2008-12-13 17:20:28 -0600
committerWolfgang Denk <wd@denx.de>2008-12-15 22:05:36 +0100
commit63240ba88cd6a220057a0f28e5bf97f5b17ac84b (patch)
tree1d4751b84ae82fe4c5dfea92765c8f4c855231e8 /include/addr_map.h
parent65e43a10631537dcb92c302d36301a12308216c3 (diff)
Introduce addr_map library
Add a library that helps in translating between virtual and physical addresses. This library can be useful as a simple means to implement map_physmem() and virt_to_phys() for platforms that need functionality beyond the simple 1:1 mapping. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'include/addr_map.h')
-rw-r--r--include/addr_map.h29
1 files changed, 29 insertions, 0 deletions
diff --git a/include/addr_map.h b/include/addr_map.h
new file mode 100644
index 00000000000..d55f5f64e10
--- /dev/null
+++ b/include/addr_map.h
@@ -0,0 +1,29 @@
+#ifndef __ADDR_MAP_H
+#define __ADDR_MAP_H
+
+/*
+ * Copyright 2008 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <asm/types.h>
+
+extern phys_addr_t addrmap_virt_to_phys(void *vaddr);
+extern unsigned long addrmap_phys_to_virt(phys_addr_t paddr);
+extern void addrmap_set_entry(unsigned long vaddr, phys_addr_t paddr,
+ phys_size_t size, int idx);
+
+#endif