Add port for the lpc2292sodimm evaluation board from EmbeddedArtists

1 files changed, 87 insertions, 0 deletions

diff --git a/board/lpc2292sodimm/lowlevel_init.S b/board/lpc2292sodimm/lowlevel_init.S
new file mode 100644
index 0000000..a91e678
--- /dev/null
+++ b/board/lpc2292sodimm/lowlevel_init.S
@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2006 Embedded Artists AB <www.embeddedartists.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 <version.h>
+#include <asm/arch/hardware.h>
+
+/* some parameters for the board */
+/* setting up the memory */
+#define 	SRAM_START 	0x40000000
+#define 	SRAM_SIZE	0x00004000
+#define   BCFG0_VALUE 0x1000ffef
+#define   BCFG1_VALUE 0x10001C61
+	
+_TEXT_BASE:
+	.word	TEXT_BASE
+MEMMAP_ADR:	
+	.word	MEMMAP
+BCFG0_ADR:
+  .word BCFG0
+_BCFG0_VALUE:
+  .word BCFG0_VALUE
+BCFG1_ADR:
+	.word	BCFG1
+_BCFG1_VALUE:
+	.word	BCFG1_VALUE
+PINSEL2_ADR:
+	.word	PINSEL2
+PINSEL2_MASK:
+	.word	0x00000000
+PINSEL2_VALUE:
+	.word	0x0F800914
+
+.extern _start
+
+.globl lowlevel_init
+lowlevel_init:
+	/* set up memory control register for bank 0 */
+	ldr r0, _BCFG0_VALUE
+	ldr r1, BCFG0_ADR
+	str r0, [r1]
+
+	/* set up memory control register for bank 1 */
+	ldr	r0, _BCFG1_VALUE
+	ldr	r1, BCFG1_ADR
+	str	r0, [r1]
+
+	/* set up PINSEL2 for bus-pins */
+	ldr	r0, PINSEL2_ADR
+	ldr	r1, [r0]
+	ldr	r2, PINSEL2_MASK
+	ldr	r3, PINSEL2_VALUE
+	and	r1, r1, r2
+	orr	r1, r1, r3
+	str	r1, [r0]
+		
+	/* move vectors to beginning of SRAM */
+	mov	r2, #SRAM_START		
+	mov	r0, #0 /*_start*/
+	ldmneia r0!, {r3-r10}		
+	stmneia r2!, {r3-r10}		
+	ldmneia r0, {r3-r9}
+	stmneia r2, {r3-r9}
+
+        /* Set-up MEMMAP register, so vectors are taken from SRAM */
+	ldr	r0, MEMMAP_ADR
+	mov	r1, #0x02	/* vectors re-mapped to static RAM */
+	str	r1, [r0]
+			
+	/* everything is fine now */
+	mov	pc, lr