raminit_receive_enable_calibration.c File Reference

#include <stdint.h>
#include <device/mmio.h>
#include <console/console.h>
#include "gm45.h"

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Data Structures
struct	rec_timing_t

Macros
#define	CxRECy_MCHBAR(x, y)   (0x14a0 + ((x) * 0x0100) + ((3 - (y)) * 4))
#define	CxRECy_SHIFT_L   0
#define	CxRECy_MASK_L   (3 << CxRECy_SHIFT_L)
#define	CxRECy_SHIFT_H   16
#define	CxRECy_MASK_H   (3 << CxRECy_SHIFT_H)
#define	CxRECy_T_SHIFT   28
#define	CxRECy_T_MASK   (0xf << CxRECy_T_SHIFT)
#define	CxRECy_T(t)   (((t) << CxRECy_T_SHIFT) & CxRECy_T_MASK)
#define	CxRECy_P_SHIFT   24
#define	CxRECy_P_MASK   (0x7 << CxRECy_P_SHIFT)
#define	CxRECy_P(p)   (((p) << CxRECy_P_SHIFT) & CxRECy_P_MASK)
#define	CxRECy_PH_SHIFT   22
#define	CxRECy_PH_MASK   (0x3 << CxRECy_PH_SHIFT)
#define	CxRECy_PH(p)   (((p) << CxRECy_PH_SHIFT) & CxRECy_PH_MASK)
#define	CxRECy_PM_SHIFT   20
#define	CxRECy_PM_MASK   (0x3 << CxRECy_PM_SHIFT)
#define	CxRECy_PM(p)   (((p) << CxRECy_PM_SHIFT) & CxRECy_PM_MASK)
#define	CxRECy_TIMING_MASK
#define	CxDRT3_C_SHIFT   7
#define	CxDRT3_C_MASK   (0xf << CxDRT3_C_SHIFT)
#define	CxDRT3_C(c)   (((c) << CxDRT3_C_SHIFT) & CxDRT3_C_MASK)
#define	PH_BOUND   4
#define	PH_STEP   2
#define	PM_BOUND   3
#define	C_BOUND   16

Functions
static void	normalize_rec_timing (rec_timing_t *const timing)
static void	rec_full_backstep (rec_timing_t *const timing)
static void	rec_half_backstep (rec_timing_t *const timing)
static void	rec_quarter_step (rec_timing_t *const timing)
static void	rec_quarter_backstep (rec_timing_t *const timing)
static void	rec_smallest_step (rec_timing_t *const timing)
static void	program_timing (int channel, int group, rec_timing_t timings[][4])
static int	read_dqs_level (const int channel, const int lane)
static void	find_dqs_low (const int channel, const int group, rec_timing_t timings[][4], const char lane_map[][2])
static void	find_dqs_high (const int channel, const int group, rec_timing_t timings[][4], const char lane_map[][2])
static void	find_dqs_edge_lowhigh (const int channel, const int group, rec_timing_t timings[][4], const char lane_map[][2])
static void	find_preamble (const int channel, const int group, rec_timing_t timings[][4], const char lane_map[][2])
static void	receive_enable_calibration (const timings_t *const timings, const dimminfo_t *const dimms)
void	raminit_receive_enable_calibration (const timings_t *const timings, const dimminfo_t *const dimms)

Variables
static const char	bytelane_map [2][4][2]

Macro Definition Documentation

C_BOUND

#define C_BOUND   16

Definition at line 40 of file raminit_receive_enable_calibration.c.

CxDRT3_C

#define CxDRT3_C

(

c

)

(((c) << CxDRT3_C_SHIFT) & CxDRT3_C_MASK)

Definition at line 30 of file raminit_receive_enable_calibration.c.

CxDRT3_C_MASK

#define CxDRT3_C_MASK   (0xf << CxDRT3_C_SHIFT)

Definition at line 29 of file raminit_receive_enable_calibration.c.

CxDRT3_C_SHIFT

#define CxDRT3_C_SHIFT   7

Definition at line 28 of file raminit_receive_enable_calibration.c.

CxRECy_MASK_H

#define CxRECy_MASK_H   (3 << CxRECy_SHIFT_H)

Definition at line 12 of file raminit_receive_enable_calibration.c.

CxRECy_MASK_L

#define CxRECy_MASK_L   (3 << CxRECy_SHIFT_L)

Definition at line 10 of file raminit_receive_enable_calibration.c.

CxRECy_MCHBAR

#define CxRECy_MCHBAR	(		x,
			y
	)		(0x14a0 + ((x) * 0x0100) + ((3 - (y)) * 4))

Definition at line 8 of file raminit_receive_enable_calibration.c.

CxRECy_P

#define CxRECy_P

(

p

)

(((p) << CxRECy_P_SHIFT) & CxRECy_P_MASK)

Definition at line 18 of file raminit_receive_enable_calibration.c.

CxRECy_P_MASK

#define CxRECy_P_MASK   (0x7 << CxRECy_P_SHIFT)

Definition at line 17 of file raminit_receive_enable_calibration.c.

CxRECy_P_SHIFT

#define CxRECy_P_SHIFT   24

Definition at line 16 of file raminit_receive_enable_calibration.c.

CxRECy_PH

#define CxRECy_PH

(

p

)

(((p) << CxRECy_PH_SHIFT) & CxRECy_PH_MASK)

Definition at line 21 of file raminit_receive_enable_calibration.c.

CxRECy_PH_MASK

#define CxRECy_PH_MASK   (0x3 << CxRECy_PH_SHIFT)

Definition at line 20 of file raminit_receive_enable_calibration.c.

CxRECy_PH_SHIFT

#define CxRECy_PH_SHIFT   22

Definition at line 19 of file raminit_receive_enable_calibration.c.

CxRECy_PM

#define CxRECy_PM

(

p

)

(((p) << CxRECy_PM_SHIFT) & CxRECy_PM_MASK)

Definition at line 24 of file raminit_receive_enable_calibration.c.

CxRECy_PM_MASK

#define CxRECy_PM_MASK   (0x3 << CxRECy_PM_SHIFT)

Definition at line 23 of file raminit_receive_enable_calibration.c.

CxRECy_PM_SHIFT

#define CxRECy_PM_SHIFT   20

Definition at line 22 of file raminit_receive_enable_calibration.c.

CxRECy_SHIFT_H

#define CxRECy_SHIFT_H   16

Definition at line 11 of file raminit_receive_enable_calibration.c.

CxRECy_SHIFT_L

#define CxRECy_SHIFT_L   0

Definition at line 9 of file raminit_receive_enable_calibration.c.

CxRECy_T

#define CxRECy_T

(

t

)

(((t) << CxRECy_T_SHIFT) & CxRECy_T_MASK)

Definition at line 15 of file raminit_receive_enable_calibration.c.

CxRECy_T_MASK

#define CxRECy_T_MASK   (0xf << CxRECy_T_SHIFT)

Definition at line 14 of file raminit_receive_enable_calibration.c.

CxRECy_T_SHIFT

#define CxRECy_T_SHIFT   28

Definition at line 13 of file raminit_receive_enable_calibration.c.

CxRECy_TIMING_MASK

#define CxRECy_TIMING_MASK

Value:

                                 (CxRECy_T_MASK | CxRECy_P_MASK | \
                                 CxRECy_PH_MASK | CxRECy_PM_MASK)

Definition at line 25 of file raminit_receive_enable_calibration.c.

PH_BOUND

#define PH_BOUND   4

Definition at line 37 of file raminit_receive_enable_calibration.c.

PH_STEP

#define PH_STEP   2

Definition at line 38 of file raminit_receive_enable_calibration.c.

PM_BOUND

#define PM_BOUND   3

Definition at line 39 of file raminit_receive_enable_calibration.c.

Function Documentation

find_dqs_edge_lowhigh()

static void find_dqs_edge_lowhigh ( const int  channel, const int  group, rec_timing_t  timings[][4], const char  lane_map[][2]  )

static

Definition at line 157 of file raminit_receive_enable_calibration.c.

References find_dqs_high(), program_timing(), read_dqs_level(), rec_quarter_backstep(), and rec_smallest_step().

Referenced by receive_enable_calibration().

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find_dqs_high()

static void find_dqs_high ( const int  channel, const int  group, rec_timing_t  timings[][4], const char  lane_map[][2]  )

static

Definition at line 147 of file raminit_receive_enable_calibration.c.

References program_timing(), read_dqs_level(), and rec_quarter_step().

Referenced by find_dqs_edge_lowhigh().

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find_dqs_low()

static void find_dqs_low ( const int  channel, const int  group, rec_timing_t  timings[][4], const char  lane_map[][2]  )

static

Definition at line 137 of file raminit_receive_enable_calibration.c.

References program_timing(), read_dqs_level(), and rec_quarter_step().

Referenced by receive_enable_calibration().

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find_preamble()

static void find_preamble ( const int  channel, const int  group, rec_timing_t  timings[][4], const char  lane_map[][2]  )

static

Definition at line 177 of file raminit_receive_enable_calibration.c.

References program_timing(), read_dqs_level(), and rec_full_backstep().

Referenced by receive_enable_calibration().

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normalize_rec_timing()

static void normalize_rec_timing ( rec_timing_t *const  timing )

static

Definition at line 50 of file raminit_receive_enable_calibration.c.

References rec_timing_t::c, C_BOUND, die(), rec_timing_t::p, rec_timing_t::p_bound, rec_timing_t::ph, PH_BOUND, PH_STEP, rec_timing_t::t, and rec_timing_t::t_bound.

Referenced by program_timing(), and receive_enable_calibration().

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program_timing()

static void program_timing ( int  channel, int  group, rec_timing_t  timings[][4]  )

static

Definition at line 104 of file raminit_receive_enable_calibration.c.

References rec_timing_t::c, CxDRT3_C, CxDRT3_C_MASK, CxDRT3_MCHBAR, CxRECy_MCHBAR, CxRECy_P, CxRECy_PH, CxRECy_PM, CxRECy_T, CxRECy_TIMING_MASK, mchbar_clrsetbits32(), mchbar_read32(), mchbar_write32(), normalize_rec_timing(), rec_timing_t::p, rec_timing_t::ph, rec_timing_t::pre, and rec_timing_t::t.

Referenced by find_dqs_edge_lowhigh(), find_dqs_high(), find_dqs_low(), find_preamble(), and receive_enable_calibration().

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raminit_receive_enable_calibration()

void raminit_receive_enable_calibration	(	const timings_t *const	timings,
		const dimminfo_t *const	dimms
	)

Definition at line 262 of file raminit_receive_enable_calibration.c.

References bytelane_map, dimminfo_t::card_type, ch, CxRECy_MCHBAR, FOR_EACH_POPULATED_CHANNEL, mchbar_clrbits32, mchbar_clrsetbits32(), mchbar_read32(), mchbar_setbits32, mchbar_write32(), raminit_reset_readwrite_pointers(), and receive_enable_calibration().

Referenced by raminit().

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read_dqs_level()

static int read_dqs_level ( const int  channel, const int  lane  )

static

Definition at line 124 of file raminit_receive_enable_calibration.c.

References mchbar_clrbits32, mchbar_read32(), mchbar_setbits32, raminit_get_rank_addr(), and read32().

Referenced by find_dqs_edge_lowhigh(), find_dqs_high(), find_dqs_low(), and find_preamble().

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rec_full_backstep()

static void rec_full_backstep ( rec_timing_t *const  timing )

static

Definition at line 81 of file raminit_receive_enable_calibration.c.

References rec_timing_t::c.

Referenced by find_preamble().

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rec_half_backstep()

static void rec_half_backstep ( rec_timing_t *const  timing )

static

Definition at line 85 of file raminit_receive_enable_calibration.c.

References rec_timing_t::ph, and PH_STEP.

Referenced by receive_enable_calibration().

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rec_quarter_backstep()

static void rec_quarter_backstep ( rec_timing_t *const  timing )

static

Definition at line 94 of file raminit_receive_enable_calibration.c.

References rec_timing_t::p, rec_timing_t::p_bound, rec_timing_t::t, and rec_timing_t::t_bound.

Referenced by find_dqs_edge_lowhigh().

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rec_quarter_step()

static void rec_quarter_step ( rec_timing_t *const  timing )

static

Definition at line 89 of file raminit_receive_enable_calibration.c.

References rec_timing_t::p, rec_timing_t::p_bound, rec_timing_t::t, and rec_timing_t::t_bound.

Referenced by find_dqs_high(), find_dqs_low(), and receive_enable_calibration().

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rec_smallest_step()

static void rec_smallest_step ( rec_timing_t *const  timing )

static

Definition at line 99 of file raminit_receive_enable_calibration.c.

References rec_timing_t::p.

Referenced by find_dqs_edge_lowhigh().

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receive_enable_calibration()

static void receive_enable_calibration ( const timings_t *const  timings, const dimminfo_t *const  dimms  )

static

Definition at line 188 of file raminit_receive_enable_calibration.c.

References BIOS_DEBUG, rec_timing_t::c, c, C_BOUND, dimminfo_t::card_type, timings::CAS, ch, find_dqs_edge_lowhigh(), find_dqs_low(), find_preamble(), FOR_EACH_POPULATED_CHANNEL, timings::mem_clock, MEM_CLOCK_1067MT, normalize_rec_timing(), rec_timing_t::pre, printk, program_timing(), RAM_DEBUG, rec_half_backstep(), rec_quarter_step(), and rec_timing_t::t.

Referenced by raminit_receive_enable_calibration(), and try_init_dram_ddr3().

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Variable Documentation

bytelane_map

const char bytelane_map[2][4][2]

static

Initial value:

= {
{ { 0, 1 }, { 2, 3 }, { 4, 5 }, { 6, 7 } },
{ { 0, 2 }, { 1, 3 }, { 4, 6 }, { 5, 7 } },
}

Definition at line 32 of file raminit_receive_enable_calibration.c.

Referenced by raminit_receive_enable_calibration().