From ea66bc8804b66633faae5b7066571c9d68b4d14a Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Thu, 15 Apr 2004 23:23:39 +0000
Subject: * Patch by George G. Davis, 02 Apr 2004:   add support for Intel
 Assabet board

---
 board/assabet/setup.S | 136 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 136 insertions(+)
 create mode 100644 board/assabet/setup.S

(limited to 'board/assabet/setup.S')

diff --git a/board/assabet/setup.S b/board/assabet/setup.S
new file mode 100644
index 0000000..fefb431
--- /dev/null
+++ b/board/assabet/setup.S
@@ -0,0 +1,136 @@
+/*
+ * Memory Setup stuff - taken from blob memsetup.S
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
+ *		       Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
+ * 2004 (c) MontaVista Software, Inc.
+ *
+ * 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"
+
+
+/*-----------------------------------------------------------------------
+ * Board defines:
+ */
+
+#define MDCNFG		0x00
+#define MDCAS00		0x04
+#define MDCAS01		0x08
+#define MDCAS02		0x0C
+#define MSC0		0x10
+#define MSC1		0x14
+#define MECR		0x18
+#define MDREFR		0x1C
+#define MDCAS20		0x20
+#define MDCAS21		0x24
+#define MDCAS22		0x28
+#define MSC2		0x2C
+#define SMCNFG		0x30
+
+#define ASSABET_BCR		(0x12000000)
+#define ASSABET_BCR_DB1110	(0x00a07490 | (0<<16) | (0<<17))
+#define ASSABET_SCR_nNEPONSET	(1 << 9)
+#define NEPONSET_LEDS		(0x10000010)
+
+
+/*-----------------------------------------------------------------------
+ * Setup parameters for the board:
+ */
+
+
+MEM_BASE:	.long	0xa0000000
+MEM_START:	.long	0xc0000000
+
+mdcnfg:		.long	0x72547254
+mdcas00:	.long	0xaaaaaa7f
+mdcas01:	.long	0xaaaaaaaa
+mdcas02:	.long	0xaaaaaaaa
+msc0:		.long	0x4b384370
+msc1:		.long	0x22212419
+mecr:		.long	0x994a994a
+mdrefr:		.long	0x04340327
+mdcas20:	.long	0xaaaaaa7f
+mdcas21:	.long	0xaaaaaaaa
+mdcas22:	.long	0xaaaaaaaa
+msc2:		.long	0x42196669
+smcnfg:		.long	0x00000000
+
+BCR:		.long	ASSABET_BCR
+BCR_DB1110:	.long	ASSABET_BCR_DB1110
+LEDS:		.long	NEPONSET_LEDS
+
+
+	.globl memsetup
+memsetup:
+
+	/* Setting up the memory and stuff */
+
+	ldr	r0, MEM_BASE
+	ldr	r1, mdcas00
+	str	r1, [r0, #MDCAS00]
+	ldr	r1, mdcas01
+	str	r1, [r0, #MDCAS01]
+	ldr	r1, mdcas02
+	str	r1, [r0, #MDCAS02]
+	ldr	r1, mdcas20
+	str	r1, [r0, #MDCAS20]
+	ldr	r1, mdcas21
+	str	r1, [r0, #MDCAS21]
+	ldr	r1, mdcas22
+	str	r1, [r0, #MDCAS22]
+	ldr	r1, mdrefr
+	str	r1, [r0, #MDREFR]
+	ldr	r1, mecr
+	str	r1, [r0, #MECR]
+	ldr	r1, msc0
+	str	r1, [r0, #MSC0]
+	ldr	r1, msc1
+	str	r1, [r0, #MSC1]
+	ldr	r1, msc2
+	str	r1, [r0, #MSC2]
+	ldr	r1, smcnfg
+	str	r1, [r0, #SMCNFG]
+
+	ldr	r1, mdcnfg
+	str	r1, [r0, #MDCNFG]
+
+	/* Load something to activate bank */
+	ldr	r2, MEM_START
+.rept	8
+	ldr	r3, [r2]
+.endr
+
+	/* Enable SDRAM */
+	orr	r1, r1, #0x00000001
+	str	r1, [r0, #MDCNFG]
+
+	ldr	r1, BCR
+	ldr	r2, BCR_DB1110
+	str	r2, [r1]
+
+	ldr	r1, LEDS
+	mov	r0, #0x3
+	str	r0, [r1]
+
+	/* All done... */
+	mov	pc, lr
-- 
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