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authorwdenk <wdenk>2002-11-03 00:38:21 +0000
committerwdenk <wdenk>2002-11-03 00:38:21 +0000
commitfe8c2806cdba70479e351299881a395dc2be7785 (patch)
treea1e8b98a1838cba6e6f5c765d9d85339257c45f5 /board/shannon
parentf9087a3213cc245cf9b90436475b5af822bd7579 (diff)
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Initial revision
Diffstat (limited to 'board/shannon')
-rw-r--r--board/shannon/config.mk23
-rw-r--r--board/shannon/memsetup.S94
2 files changed, 117 insertions, 0 deletions
diff --git a/board/shannon/config.mk b/board/shannon/config.mk
new file mode 100644
index 0000000..736d3af
--- /dev/null
+++ b/board/shannon/config.mk
@@ -0,0 +1,23 @@
+#
+# LART board with SA1100 cpu
+#
+# see http://www.lart.tudelft.nl/ for more information on LART
+#
+
+#
+# Tuxscreen has 4 banks of 4 MB DRAM each
+#
+# c000'0000
+# c800'0000
+# d000'0000
+# d800'0000
+#
+# Linux-Kernel is expected to be at c000'8000, entry c000'8000
+#
+# we load ourself to d830'0000, the upper 1 MB of the last (4th) bank
+#
+# download areas is c800'0000
+#
+
+
+TEXT_BASE = 0xd8300000
diff --git a/board/shannon/memsetup.S b/board/shannon/memsetup.S
new file mode 100644
index 0000000..4f0c464
--- /dev/null
+++ b/board/shannon/memsetup.S
@@ -0,0 +1,94 @@
+/*
+ * 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)
+ *
+ * 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 */
+
+MEM_BASE: .long 0xa0000000
+MEM_START: .long 0xc0000000
+
+#define MDCNFG 0x00
+#define MDCAS0 0x04
+#define MDCAS1 0x08
+#define MDCAS2 0x0c
+#define MSC0 0x10
+#define MSC1 0x14
+#define MECR 0x18
+
+mdcas0: .long 0xc71c703f @ cccccccf
+mdcas1: .long 0xffc71c71 @ fffffffc
+mdcas2: .long 0xffffffff @ ffffffff
+mdcnfg: .long 0x0334b21f @ 9326991f
+msc0: .long 0xfff84458 @ 42304230
+msc1: .long 0xffffffff @ 20182018
+mecr: .long 0x7fff7fff @ 01000000
+
+/* setting up the memory */
+
+.globl memsetup
+memsetup:
+ ldr r0, MEM_BASE
+
+ /* Setup the flash memory */
+ ldr r1, msc0
+ str r1, [r0, #MSC0]
+
+ /* Set up the DRAM */
+
+ /* MDCAS0 */
+ ldr r1, mdcas0
+ str r1, [r0, #MDCAS0]
+
+ /* MDCAS1 */
+ ldr r1, mdcas1
+ str r1, [r0, #MDCAS1]
+
+ /* MDCAS2 */
+ ldr r1, mdcas2
+ str r1, [r0, #MDCAS2]
+
+ /* MDCNFG */
+ ldr r1, mdcnfg
+ str r1, [r0, #MDCNFG]
+
+ /* Set up PCMCIA space */
+ ldr r1, mecr
+ str r1, [r0, #MECR]
+
+ /* Load something to activate bank */
+ ldr r1, MEM_START
+
+.rept 8
+ ldr r0, [r1]
+.endr
+
+ /* everything is fine now */
+ mov pc, lr
+