Blackfin: initial XIP support

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

2 files changed, 13 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/context.S b/arch/blackfin/include/asm/context.S
index 5dffaf582a22..fada8e974a73 100644
--- a/arch/blackfin/include/asm/context.S
+++ b/arch/blackfin/include/asm/context.S
@@ -374,3 +374,13 @@
 
         (R7:0, P5:0) = [SP++];
 .endm
+
+.macro pseudo_long_call func:req, scratch:req
+#ifdef CONFIG_ROMKERNEL
+        \scratch\().l = \func;
+        \scratch\().h = \func;
+        call (\scratch);
+#else
+        call \func;
+#endif
+.endm
diff --git a/arch/blackfin/include/asm/sections.h b/arch/blackfin/include/asm/sections.h
index 42f6c53c59c6..14a3e66d9167 100644
--- a/arch/blackfin/include/asm/sections.h
+++ b/arch/blackfin/include/asm/sections.h
@@ -21,6 +21,9 @@ extern unsigned long memory_start, memory_end, physical_mem_end;
 extern char _stext_l1[], _etext_l1[], _text_l1_lma[], __weak _text_l1_len[];
 extern char _sdata_l1[], _edata_l1[], _sbss_l1[], _ebss_l1[],
         _data_l1_lma[], __weak _data_l1_len[];
+#ifdef CONFIG_ROMKERNEL
+extern char _data_lma[], _data_len[], _sinitdata[], _einitdata[], _init_data_lma[], _init_data_len[];
+#endif
 extern char _sdata_b_l1[], _edata_b_l1[], _sbss_b_l1[], _ebss_b_l1[],
         _data_b_l1_lma[], __weak _data_b_l1_len[];
 extern char _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[],