xtensa: add flat support

Add the arch-specific header for flat support on xtensa in preparation
for the Xtensa S6000 nommu port.

Signed-off-by: Oskar Schirmer <os@emlix.com>
Signed-off-by: Johannes Weiner <jw@emlix.com>
Signed-off-by: Chris Zankel <chris@zankel.net>

diff --git a/arch/xtensa/include/asm/flat.h b/arch/xtensa/include/asm/flat.h
new file mode 100644 (file)
index 0000000..94c44ab
--- /dev/null
+++ b/arch/xtensa/include/asm/flat.h
@@ -0,0 +1,12 @@
+#ifndef __ASM_XTENSA_FLAT_H
+#define __ASM_XTENSA_FLAT_H
+
+#define flat_argvp_envp_on_stack()                     0
+#define flat_old_ram_flag(flags)                       (flags)
+#define flat_reloc_valid(reloc, size)                  ((reloc) <= (size))
+#define flat_get_addr_from_rp(rp, relval, flags, p)    get_unaligned(rp)
+#define flat_put_addr_at_rp(rp, val, relval    )       put_unaligned(val, rp)
+#define flat_get_relocate_addr(rel)                    (rel)
+#define flat_set_persistent(relval, p)                 0
+
+#endif /* __ASM_XTENSA_FLAT_H */