#include <console/console.h>
#include <stdint.h>

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Macros

#define	NS2MHZ_DIV256 (1000 << 8)
	Convenience definitions for TCK values. More...

#define	TCK_1333MHZ 192

#define	TCK_1200MHZ 212

#define	TCK_1100MHZ 232

#define	TCK_1066MHZ 240

#define	TCK_1000MHZ 256

#define	TCK_933MHZ 274

#define	TCK_900MHZ 284

#define	TCK_800MHZ 320

#define	TCK_700MHZ 365

#define	TCK_666MHZ 384

#define	TCK_533MHZ 480

#define	TCK_400MHZ 640

#define	TCK_333MHZ 768

#define	TCK_266MHZ 960

#define	TCK_200MHZ 1280


#define	printram(x, ...)
	Convenience macro for enabling printk with CONFIG(DEBUG_RAM_SETUP) More...

Enumerations
enum	spd_status { SPD_STATUS_OK = 0 , SPD_STATUS_INVALID , SPD_STATUS_CRC_ERROR , SPD_STATUS_INVALID_FIELD }
	Result of the SPD decoding process. More...

Functions
u16	ddr_crc16 (const u8 *ptr, int n_crc)
	Calculate the CRC of a DDR SPD data. More...

Macro Definition Documentation

◆ NS2MHZ_DIV256

#define NS2MHZ_DIV256 (1000 << 8)

Convenience definitions for TCK values.

Different values for tCK, representing standard DDR3 frequencies. These values are in 1/256 ns units.

Definition at line 16 of file common.h.

◆ printram

#define printram	(	x,
		...
	)

Convenience macro for enabling printk with CONFIG(DEBUG_RAM_SETUP)

Use this macro instead of printk(); for verbose RAM initialization messages. When CONFIG(DEBUG_RAM_SETUP) is not selected, these messages are automatically disabled.

Definition at line 46 of file common.h.

◆ TCK_1000MHZ

#define TCK_1000MHZ 256

Definition at line 22 of file common.h.

◆ TCK_1066MHZ

#define TCK_1066MHZ 240

Definition at line 21 of file common.h.

◆ TCK_1100MHZ

#define TCK_1100MHZ 232

Definition at line 20 of file common.h.

◆ TCK_1200MHZ

#define TCK_1200MHZ 212

Definition at line 19 of file common.h.

◆ TCK_1333MHZ

#define TCK_1333MHZ 192

Definition at line 18 of file common.h.

◆ TCK_200MHZ

#define TCK_200MHZ 1280

Definition at line 32 of file common.h.

◆ TCK_266MHZ

#define TCK_266MHZ 960

Definition at line 31 of file common.h.

◆ TCK_333MHZ

#define TCK_333MHZ 768

Definition at line 30 of file common.h.

◆ TCK_400MHZ

#define TCK_400MHZ 640

Definition at line 29 of file common.h.

◆ TCK_533MHZ

#define TCK_533MHZ 480

Definition at line 28 of file common.h.

◆ TCK_666MHZ

#define TCK_666MHZ 384

Definition at line 27 of file common.h.

◆ TCK_700MHZ

#define TCK_700MHZ 365

Definition at line 26 of file common.h.

◆ TCK_800MHZ

#define TCK_800MHZ 320

Definition at line 25 of file common.h.

◆ TCK_900MHZ

#define TCK_900MHZ 284

Definition at line 24 of file common.h.

◆ TCK_933MHZ

#define TCK_933MHZ 274

Definition at line 23 of file common.h.

Enumeration Type Documentation

◆ spd_status

enum spd_status

Result of the SPD decoding process.

Enumerator
SPD_STATUS_OK
SPD_STATUS_INVALID
SPD_STATUS_CRC_ERROR
SPD_STATUS_INVALID_FIELD

Definition at line 51 of file common.h.

Function Documentation

◆ ddr_crc16()

u16 ddr_crc16	(	const u8 *	ptr,
		int	n_crc
	)

Calculate the CRC of a DDR SPD data.

Parameters

spd	pointer to raw SPD data
len	length of data in SPD

Returns: the CRC of the SPD data

Definition at line 14 of file ddr_common.c.

Referenced by mainboard_memory_init_params(), spd_ddr2_calc_unique_crc(), spd_ddr3_calc_crc(), spd_ddr3_calc_unique_crc(), and verify_block().

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Macros

Enumerations

Functions