From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- include/grub/smbus.h | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 include/grub/smbus.h (limited to 'include/grub/smbus.h') diff --git a/include/grub/smbus.h b/include/grub/smbus.h new file mode 100644 index 0000000..0b8e671 --- /dev/null +++ b/include/grub/smbus.h @@ -0,0 +1,70 @@ +/* + * 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 . + */ + +#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 -- cgit v1.2.3