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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2010 Free Software Foundation, Inc.
*
* GRUB 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 3 of the License, or
* (at your option) any later version.
*
* GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_SMBUS_HEADER
#define GRUB_SMBUS_HEADER 1
#define GRUB_SMB_RAM_START_ADDR 0x50
#define GRUB_SMB_RAM_NUM_MAX 0x08
#define GRUB_SMBUS_SPD_MEMORY_TYPE_ADDR 2
#define GRUB_SMBUS_SPD_MEMORY_TYPE_DDR2 8
#define GRUB_SMBUS_SPD_MEMORY_NUM_BANKS_ADDR 17
#define GRUB_SMBUS_SPD_MEMORY_NUM_ROWS_ADDR 3
#define GRUB_SMBUS_SPD_MEMORY_NUM_COLUMNS_ADDR 4
#define GRUB_SMBUS_SPD_MEMORY_NUM_OF_RANKS_ADDR 5
#define GRUB_SMBUS_SPD_MEMORY_NUM_OF_RANKS_MASK 0x7
#define GRUB_SMBUS_SPD_MEMORY_CAS_LATENCY_ADDR 18
#define GRUB_SMBUS_SPD_MEMORY_CAS_LATENCY_MIN_VALUE 5
#define GRUB_SMBUS_SPD_MEMORY_TRAS_ADDR 30
#define GRUB_SMBUS_SPD_MEMORY_TRTP_ADDR 38
#ifndef ASM_FILE
struct grub_smbus_spd
{
grub_uint8_t written_size;
grub_uint8_t log_total_flash_size;
grub_uint8_t memory_type;
union
{
grub_uint8_t unknown[253];
struct {
grub_uint8_t num_rows;
grub_uint8_t num_columns;
grub_uint8_t num_of_ranks;
grub_uint8_t unused1[12];
grub_uint8_t num_of_banks;
grub_uint8_t unused2[2];
grub_uint8_t cas_latency;
grub_uint8_t unused3[9];
grub_uint8_t rank_capacity;
grub_uint8_t unused4[1];
grub_uint8_t tras;
grub_uint8_t unused5[7];
grub_uint8_t trtp;
grub_uint8_t unused6[31];
grub_uint8_t part_number[18];
grub_uint8_t unused7[165];
} ddr2;
};
};
#endif
#endif
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