[U-Boot] [RFC PATCH 5/7] reboard: arm: Add processor function library

[Simon Glass]

Add a library to hold ARM assembler code which is generic across all
ARM CPUs.

Signed-off-by: Simon Glass <sjg at chromium.org>
---
 arch/arm/lib/Makefile |    1 +
 arch/arm/lib/proc.S   |   35 +++++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/lib/proc.S

diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index ca2802a..27749dc 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -50,6 +50,7 @@ endif
 
 ifndef CONFIG_SYS_LEGACY_BOARD
 COBJS-y += arch_reloc.o
+SOBJS-y += proc.o
 endif
 
 SRCS	:= $(GLSOBJS:.o=.S) $(GLCOBJS:.o=.c) \
diff --git a/arch/arm/lib/proc.S b/arch/arm/lib/proc.S
new file mode 100644
index 0000000..99a2944
--- /dev/null
+++ b/arch/arm/lib/proc.S
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * 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
+ */
+
+
+/**
+ * Jump to board_init_r with a new stack pointer
+ *
+ * @param gd	Pointer to global data
+ * @param dest_addr	Destination address from global data
+ * @param func	Address of board_init_r function (relocated)
+ * @param sp	New stack pointer
+ */
+.globl proc_call_board_init_r
+proc_call_board_init_r:
+	mov	sp, r3
+	/* jump to it ... */
+	mov	pc, r2
-- 
1.7.3.1