Add Barco Streaming Video Card (SVC) and Sample Compress Network (SCN) board
Patch by Marc Leeman, 04 Mar 2005
diff --git a/board/barco/speed.h b/board/barco/speed.h
new file mode 100644
index 0000000..46860e8
--- /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.
+ */