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[/] [openrisc/] [trunk/] [rtos/] [ecos-2.0/] [packages/] [hal/] [common/] [v2_0/] [include/] [hal_spd.h] - Rev 379
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#ifndef CYGONCE_HAL_HAL_SPD_H #define CYGONCE_HAL_HAL_SPD_H //============================================================================= // // hal_spd.h // // HAL header for SDRAM Serial Presence Detect support. // //============================================================================= //####ECOSGPLCOPYRIGHTBEGIN#### // ------------------------------------------- // This file is part of eCos, the Embedded Configurable Operating System. // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. // // eCos 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 or (at your option) any later version. // // eCos 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 eCos; if not, write to the Free Software Foundation, Inc., // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. // // As a special exception, if other files instantiate templates or use macros // or inline functions from this file, or you compile this file and link it // with other works to produce a work based on this file, this file does not // by itself cause the resulting work to be covered by the GNU General Public // License. However the source code for this file must still be made available // in accordance with section (3) of the GNU General Public License. // // This exception does not invalidate any other reasons why a work based on // this file might be covered by the GNU General Public License. // // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. // at http://sources.redhat.com/ecos/ecos-license/ // ------------------------------------------- //####ECOSGPLCOPYRIGHTEND#### //============================================================================= //#####DESCRIPTIONBEGIN#### // // Author(s): msalter // Contributors:msalter // Date: 2002-01-17 // Purpose: Generic HAL SPD header. // Usage: #include <cyg/hal/hal_spd.h> // Description: This header provides byte numbers and bit definitions for // serial EEPROM containing SDRAM module information. // //####DESCRIPTIONEND#### // //============================================================================= // Commonly used bytes #define SPD_BANKCNT 5 // number of module banks #define SPD_CONFIG 11 // DIMM configuration type (Parity or not, EEC) #define SPD_REFRESH 12 // Referesh rate #define SPD_SDRAM_WIDTH 13 // DRAM width #define SPD_MOD_ATTRIB 21 // DRAM module attribute #define SPD_BANKSZ 31 // module bank density #define SPD_CHECKSUM 63 // checksum for bytes 0-62 // SPD_MOD_ATTRIB bits #define SPD_ATTRIB_BUF_CTL 0x01 // Buffered Addr/Control inputs #define SPD_ATTRIB_REG_CTL 0x02 // Registered Addr/Control inputs #define SPD_ATTRIB_PLL 0x04 // On-card PLL #define SPD_ATTRIB_BUF_DQ 0x08 // Buffered DQMB inputs #define SPD_ATTRIB_REG_DQ 0x10 // Registered DQMB inputs #define SPD_ATTRIB_DIFF 0x20 // Differential clock input #define SPD_ATTRIB_RRA 0x40 // Redundant Row Address //----------------------------------------------------------------------------- #endif // CYGONCE_HAL_HAL_SPD_H // End of hal_spd.h
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