move boards to arch/<architecure>/boards

this will allow each arch to handle the boards more simply and depending on
there need

the env var BOARD will refer to the current board dirent

for sandbox as we have only one board the board dirent is arch/sandbox/board

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 65 insertions, 0 deletions

diff --git a/arch/arm/boards/omap/platform.S b/arch/arm/boards/omap/platform.S
new file mode 100644
index 0000000000..77b7eed906
--- /dev/null
+++ b/arch/arm/boards/omap/platform.S
@@ -0,0 +1,65 @@
+/**
+ * @file
+ * @brief Wrapper to call board level initialization routine
+ *
+ * FileName: arch/arm/boards/omap/platform.S
+ *
+ * board_init_lowlevel is defined here. This calls board_init which
+ * is linked to the binary - the board_init only has a SRAM stack.
+ * so it needs to be careful about the usage of global variables
+ * and the likes. Enabled only if CONFIG_MACH_DO_LOWLEVEL_INIT is
+ * defined
+ */
+/*
+ * (C) Copyright 2006-2008
+ * Texas Instruments, <www.ti.com>
+ * Nishanth Menon <x0nishan@ti.com>
+ *
+ * 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
+ */
+
+#include <config.h>
+#include <mach/silicon.h>
+
+#ifdef CONFIG_MACH_DO_LOWLEVEL_INIT
+/**
+ * @fn void board_init_lowlevel(void)
+ *
+ * @brief This provides a assembly wrapper setting up SRAM before calling
+ * board_init
+ *
+ * @return void
+ */
+.globl board_init_lowlevel
+board_init_lowlevel:
+	/* Setup a temporary stack so that we can call C functions
+	 * Yes. this might have been already done by arch code.
+	 * No harm in being a bit redundant to avoid future complications
+	 */
+	ldr	sp,	SRAM_STACK
+        str     ip,	[sp]    /* stash old link register */
+        str     lr,	[sp]    /* stash current link register */
+	mov	ip,	lr	/* save link reg across call */
+	/* Do the pin muxes, sdram init etc..board-xxx.c */
+	bl	board_init
+        ldr     lr,	[sp]    /* restore current link register */
+        ldr     ip,	[sp]    /* restore save ip */
+	/* back to arch calling code */
+	mov	pc,	lr
+SRAM_STACK:
+	.word	OMAP_SRAM_STACK
+
+#endif /* CONFIG_MACH_DO_LOWLEVEL_INIT */