From 61764f45dca2c5d5b3faaec1c912f3d50e8bd8e9 Mon Sep 17 00:00:00 2001
From: "Steven J. Magnani" <steve@digidescorp.com>
Date: Tue, 13 Sep 2005 14:54:25 +0000
Subject: Initial revision.

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2027 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
---
 src/include/spd.h | 89 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 src/include/spd.h

(limited to 'src/include/spd.h')

diff --git a/src/include/spd.h b/src/include/spd.h
new file mode 100644
index 000000000000..64476563dba9
--- /dev/null
+++ b/src/include/spd.h
@@ -0,0 +1,89 @@
+/*
+ * $Header: /home/cvs/BIR/ca-cpu/freebios/src/include/spd.h,v 1.1 2005/07/11 16:03:54 smagnani Exp $
+ *
+ * spd.h: Definitions for Serial Presence Detect (SPD) data
+ *		  stored on SDRAM modules
+ *
+ * Copyright (C) 2005 Digital Design Corporation
+ *
+ * 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
+ *
+ * $Log: spd.h,v $
+ * Revision 1.1  2005/07/11 16:03:54  smagnani
+ * Initial revision.
+ *
+ *
+ */
+
+#ifndef __SPD_H_DEFINED
+#define __SPD_H_DEFINED
+
+// Byte numbers
+#define SPD_MEMORY_TYPE							 2
+#define SPD_NUM_ROWS							 3
+#define SPD_NUM_COLUMNS							 4
+#define SPD_NUM_DIMM_BANKS						 5
+#define SPD_MODULE_DATA_WIDTH_LSB				 6
+#define SPD_MODULE_DATA_WIDTH_MSB				 7
+#define SPD_MODULE_VOLTAGE						 8
+#define SPD_MIN_CYCLE_TIME_AT_CAS_MAX			 9
+#define SPD_DIMM_CONFIG_TYPE					11
+#define	SPD_REFRESH								12
+#define SPD_PRIMARY_DRAM_WIDTH					13
+#define SPD_SUPPORTED_BURST_LENGTHS				16
+#define SPD_NUM_BANKS_PER_DRAM					17
+#define SPD_ACCEPTABLE_CAS_LATENCIES			18
+#define SPD_MODULE_ATTRIBUTES					21
+#define SPD_MIN_CYCLE_TIME_AT_CAS_REDUCED_05	23
+#define SPD_MIN_CYCLE_TIME_AT_CAS_REDUCED_10	25
+#define SPD_MIN_ROW_PRECHARGE_TIME				27
+#define SPD_MIN_RAS_TO_CAS_DELAY				29
+#define SPD_MIN_ACTIVE_TO_PRECHARGE_DELAY		30
+#define SPD_ADDRESS_CMD_HOLD					33
+
+
+// SPD_MEMORY_TYPE values
+#define MEMORY_TYPE_SDRAM_DDR	7
+
+// SPD_MODULE_VOLTAGE values
+#define SPD_VOLTAGE_SSTL2		4
+
+// SPD_DIMM_CONFIG_TYPE values
+#define ERROR_SCHEME_NONE		0
+#define ERROR_SCHEME_PARITY		1
+#define ERROR_SCHEME_ECC		2
+
+// SPD_ACCEPTABLE_CAS_LATENCIES values
+#define SPD_CAS_LATENCY_1_0		0x01
+#define SPD_CAS_LATENCY_1_5		0x02
+#define SPD_CAS_LATENCY_2_0		0x04
+#define SPD_CAS_LATENCY_2_5		0x08
+#define SPD_CAS_LATENCY_3_0		0x10
+#define SPD_CAS_LATENCY_3_5		0x20
+#define SPD_CAS_LATENCY_4_0		0x40
+
+// SPD_SUPPORTED_BURST_LENGTHS values
+#define SPD_BURST_LENGTH_1		1
+#define SPD_BURST_LENGTH_2		2
+#define SPD_BURST_LENGTH_4		4
+#define SPD_BURST_LENGTH_8		8
+#define SPD_BURST_LENGTH_PAGE	(1<<7)
+
+
+// SPD_MODULE_ATTRIBUTES values
+#define MODULE_BUFFERED			1
+#define MODULE_REGISTERED		2
+
+#endif 	// __SPD_H_DEFINED
-- 
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