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Init DDR2 controller

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-03-01 18:53:34 +01:00
parent 7517048135
commit 813a5f2d33
4 changed files with 307 additions and 35 deletions
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3
include/grub/mips/yeeloong/boot.h
View file

@ -24,4 +24,7 @@
#define GRUB_MACHINE_FLASH_CACHE_ERROR 0xbfc00300
#define GRUB_MACHINE_FLASH_OTHER_EXCEPTION 0xbfc00380
#define GRUB_MACHINE_DDR2_BASE 0xaffffe00
#define GRUB_MACHINE_DDR2_REG1_HI_8BANKS 0x00000001
#endif

34
include/grub/smbus.h
View file

@ -22,21 +22,49 @@
#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;
#define GRUB_SMBUS_SPD_MEMORY_TYPE_DDR2 8
grub_uint8_t memory_type;
union
{
grub_uint8_t unknown[253];
struct {
grub_uint8_t unused1[70];
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 unused2[165];
grub_uint8_t unused7[165];
} ddr2;
};
};
#endif
#endif