1 files changed, 95 insertions, 0 deletions
diff --git a/board/ep7312/lowlevel_init.S b/board/ep7312/lowlevel_init.S
new file mode 100644
index 0000000..5dadb31
--- /dev/null
+++ b/board/ep7312/lowlevel_init.S
@@ -0,0 +1,95 @@
+/*
+ * Memory Setup stuff - taken from ???
+ *
+ * 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
+ */
+
+
+#include <config.h>
+#include <version.h>
+
+
+/* some parameters for the board */
+
+SYSCON1:	.long	0x80000100
+SYSCON2:	.long	0x80001100
+SYSCON3:	.long	0x80002200
+MEMCFG1:	.long	0x80000180
+MEMCFG2:	.long	0x800001C0
+SDCONF:		.long	0x80002300
+SDRFPR:		.long	0x80002340
+
+syscon1_val:	.long	0x00040100
+syscon2_val:	.long	0x00000102
+syscon3_val:	.long	0x0000020E
+memcfg1_val:	.long	0x1f101710
+memcfg2_mask:	.long	0x0000ffff @ only set lower 16 bits
+memcfg2_val:	.long	0x00001f13 @ upper 16 bits are reserved for CS7 + CS6
+sdrfpr_val:	.long	0x00000240
+sdconf_val:	.long	0x00000522
+/* setting up the memory */
+
+.globl lowlevel_init
+lowlevel_init:
+	/*
+	 * SYSCON1-3
+	 */
+	ldr	r0, SYSCON1
+	ldr	r1, syscon1_val
+	str	r1, [r0]
+
+	ldr	r0, SYSCON2
+	ldr	r1, syscon2_val
+	str	r1, [r0]
+
+	ldr	r0, SYSCON3
+	ldr	r1, syscon3_val
+	str	r1, [r0]
+
+	/*
+	 * MEMCFG1
+	 */
+	ldr	r0, MEMCFG1
+	ldr	r1, memcfg1_val
+	str	r1, [r0]
+
+	/*
+	 * MEMCFG2
+	 */
+	ldr	r0, MEMCFG2
+	ldr	r2, [r0]
+	ldr	r1, memcfg2_mask
+	bic	r2, r2, r1
+	ldr	r1, memcfg2_val
+	orr	r2, r2, r1
+	str	r2, [r0]
+
+	/*
+	 * SDRFPR,SDCONF
+	 */
+	ldr	r0, SDCONF
+	ldr	r1, sdconf_val
+	str	r1, [r0]
+
+	ldr	r0, SDRFPR
+	ldr	r1, sdrfpr_val
+	str	r1, [r0]
+
+	/* everything is fine now */
+	mov	pc, lr