From 8e6f1a8ec2b081c01a542ccbf333ddb6bca13c01 Mon Sep 17 00:00:00 2001
From: Wolfgang Denk <wd@pollux.(none)>
Date: Sun, 25 Sep 2005 18:59:36 +0200
Subject: Add Barco Streaming Video Card (SVC) and Sample Compress Network
 (SCN) board Patch by Marc Leeman, 04 Mar 2005

---
 board/barco/speed.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 board/barco/speed.h

(limited to 'board/barco/speed.h')

diff --git a/board/barco/speed.h b/board/barco/speed.h
new file mode 100644
index 0000000000..46860e840e
--- /dev/null
+++ b/board/barco/speed.h
@@ -0,0 +1,78 @@
+/********************************************************************
+ *
+ * Unless otherwise specified, Copyright (C) 2004-2005 Barco Control Rooms
+ *
+ * $Source: /home/services/cvs/firmware/ppc/u-boot-1.1.2/board/barco/speed.h,v $
+ * $Revision: 1.2 $
+ * $Author: mleeman $
+ * $Date: 2005/02/21 12:48:58 $
+ *
+ * Last ChangeLog Entry
+ * $Log: speed.h,v $
+ * Revision 1.2  2005/02/21 12:48:58  mleeman
+ * update of copyright years (feedback wd)
+ *
+ * Revision 1.1  2005/02/14 09:23:46  mleeman
+ * - moved 'barcohydra' directory to a more generic barco; since we will be
+ *   supporting and adding multiple boards
+ *
+ * Revision 1.2  2005/02/09 12:56:23  mleeman
+ * add generic header to track changes in sources
+ *
+ *
+ *******************************************************************/
+
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+/*-----------------------------------------------------------------------
+ * Timer value for timer 2, ICLK = 10
+ *
+ * SPEED_FCOUNT2 =  GCLK / (16 * (TIMER_TMR_PS + 1))
+ * SPEED_TMR3_PS = (GCLK / (16 * SPEED_FCOUNT3)) - 1
+ *
+ * SPEED_FCOUNT2	timer 2 counting frequency
+ * GCLK	      		CPU clock
+ * SPEED_TMR2_PS	prescaler
+ */
+#define SPEED_TMR2_PS  	(250 - 1)	/* divide by 250	*/
+
+/*-----------------------------------------------------------------------
+ * Timer value for PIT
+ *
+ * PIT_TIME = SPEED_PITC / PITRTCLK
+ * PITRTCLK = 8192
+ */
+#define SPEED_PITC	(82 << 16)	/* start counting from 82	*/
+
+/*
+ * The new value for PTA is calculated from
+ *
+ *	PTA = (gclk * Trefresh) / (2 ^ (2 * DFBRG) * PTP * NCS)
+ *
+ * gclk		CPU clock (not bus clock !)
+ * Trefresh	Refresh cycle * 4 (four word bursts used)
+ * DFBRG	For normal mode (no clock reduction) always 0
+ * PTP		Prescaler (already adjusted for no. of banks and 4K / 8K refresh)
+ * NCS		Number of SDRAM banks (chip selects) on this UPM.
+ */
-- 
cgit