Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-30 00:21:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/ddr/marvell/a38x/ddr3_training_pbs.c
Stefan Roese f1df936445 arm: mvebu: Add Armada 38x DDR3 training code from Marvell bin_hdr 
This patch adds the DDR3 setup and training code taken from the Marvell
U-Boot repository. This code used to be included as a binary (bin_hdr)
into the Armada A38x boot image. Not linked with the main U-Boot. With this
code addition and the serdes/PHY setup code, the Armada A38x support
in mainline U-Boot is finally self-contained. So the complete image
for booting can be built from mainline U-Boot. Without any additional
external inclusion.

Note:
This code has undergone many hours (days!) of coding-style cleanup and
refactoring. It still is not checkpatch clean though, I'm afraid. As the
factoring of the code has so many levels of indentation that many lines
are longer than 80 chars.

Signed-off-by: Stefan Roese <sr@denx.de>
2015-07-23 10:38:44 +02:00

995 lines
30 KiB
C
Raw Blame History

/*
* Copyright (C) Marvell International Ltd. and its affiliates
*
* SPDX-License-Identifier: GPL-2.0
*/
#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include "ddr3_init.h"
#define TYPICAL_PBS_VALUE 12
u32 nominal_adll[MAX_INTERFACE_NUM * MAX_BUS_NUM];
enum hws_training_ip_stat train_status[MAX_INTERFACE_NUM];
u8 result_mat[MAX_INTERFACE_NUM][MAX_BUS_NUM][BUS_WIDTH_IN_BITS];
u8 result_mat_rx_dqs[MAX_INTERFACE_NUM][MAX_BUS_NUM][MAX_CS_NUM];
/* 4-EEWA, 3-EWA, 2-SWA, 1-Fail, 0-Pass */
u8 result_all_bit[MAX_BUS_NUM * BUS_WIDTH_IN_BITS * MAX_INTERFACE_NUM];
u8 max_pbs_per_pup[MAX_INTERFACE_NUM][MAX_BUS_NUM];
u8 min_pbs_per_pup[MAX_INTERFACE_NUM][MAX_BUS_NUM];
u8 max_adll_per_pup[MAX_INTERFACE_NUM][MAX_BUS_NUM];
u8 min_adll_per_pup[MAX_INTERFACE_NUM][MAX_BUS_NUM];
u32 pbsdelay_per_pup[NUM_OF_PBS_MODES][MAX_INTERFACE_NUM][MAX_BUS_NUM];
u8 adll_shift_lock[MAX_INTERFACE_NUM][MAX_BUS_NUM];
u8 adll_shift_val[MAX_INTERFACE_NUM][MAX_BUS_NUM];
enum hws_pattern pbs_pattern = PATTERN_VREF;
static u8 pup_state[MAX_INTERFACE_NUM][MAX_BUS_NUM];
/*
* Name: ddr3_tip_pbs
* Desc: PBS
* Args: TBD
* Notes:
* Returns: OK if success, other error code if fail.
*/
int ddr3_tip_pbs(u32 dev_num, enum pbs_dir pbs_mode)
{
u32 res0[MAX_INTERFACE_NUM];
int adll_tap = MEGA / freq_val[medium_freq] / 64;
int pad_num = 0;
enum hws_search_dir search_dir =
(pbs_mode == PBS_RX_MODE) ? HWS_HIGH2LOW : HWS_LOW2HIGH;
enum hws_dir dir = (pbs_mode == PBS_RX_MODE) ? OPER_READ : OPER_WRITE;
int iterations = (pbs_mode == PBS_RX_MODE) ? 31 : 63;
u32 res_valid_mask = (pbs_mode == PBS_RX_MODE) ? 0x1f : 0x3f;
int init_val = (search_dir == HWS_LOW2HIGH) ? 0 : iterations;
enum hws_edge_compare search_edge = EDGE_FP;
u32 pup = 0, bit = 0, if_id = 0, all_lock = 0, cs_num = 0;
int reg_addr = 0;
u32 validation_val = 0;
u32 cs_enable_reg_val[MAX_INTERFACE_NUM];
u16 *mask_results_dq_reg_map = ddr3_tip_get_mask_results_dq_reg();
u8 temp = 0;
struct hws_topology_map *tm = ddr3_get_topology_map();
/* save current cs enable reg val */
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
/* save current cs enable reg val */
CHECK_STATUS(ddr3_tip_if_read
(dev_num, ACCESS_TYPE_UNICAST, if_id,
CS_ENABLE_REG, cs_enable_reg_val, MASK_ALL_BITS));
/* enable single cs */
CHECK_STATUS(ddr3_tip_if_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
CS_ENABLE_REG, (1 << 3), (1 << 3)));
}
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(READ_CENTRALIZATION_PHY_REG +
(effective_cs * CS_REGISTER_ADDR_OFFSET)) :
(WRITE_CENTRALIZATION_PHY_REG +
(effective_cs * CS_REGISTER_ADDR_OFFSET));
read_adll_value(nominal_adll, reg_addr, MASK_ALL_BITS);
/* stage 1 shift ADLL */
ddr3_tip_ip_training(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE, RESULT_PER_BIT,
HWS_CONTROL_ELEMENT_ADLL, search_dir, dir,
tm->if_act_mask, init_val, iterations,
pbs_pattern, search_edge, CS_SINGLE, cs_num,
train_status);
validation_val = (pbs_mode == PBS_RX_MODE) ? 0x1f : 0;
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
min_adll_per_pup[if_id][pup] =
(pbs_mode == PBS_RX_MODE) ? 0x1f : 0x3f;
pup_state[if_id][pup] = 0x3;
adll_shift_lock[if_id][pup] = 1;
max_adll_per_pup[if_id][pup] = 0x0;
}
}
/* EBA */
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
mask_results_dq_reg_map[
bit + pup * BUS_WIDTH_IN_BITS],
res0, MASK_ALL_BITS));
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1;
if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("FP I/F %d, bit:%d, pup:%d res0 0x%x\n",
if_id, bit, pup,
res0[if_id]));
if (pup_state[if_id][pup] != 3)
continue;
/* if not EBA state than move to next pup */
if ((res0[if_id] & 0x2000000) == 0) {
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("-- Fail Training IP\n"));
/* training machine failed */
pup_state[if_id][pup] = 1;
adll_shift_lock[if_id][pup] = 0;
continue;
}
else if ((res0[if_id] & res_valid_mask) ==
validation_val) {
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("-- FAIL EBA %d %d %d %d\n",
if_id, bit, pup,
res0[if_id]));
pup_state[if_id][pup] = 4;
/* this pup move to EEBA */
adll_shift_lock[if_id][pup] = 0;
continue;
} else {
/*
* The search ended in Pass we need
* Fail
*/
res0[if_id] =
(pbs_mode == PBS_RX_MODE) ?
((res0[if_id] &
res_valid_mask) + 1) :
((res0[if_id] &
res_valid_mask) - 1);
max_adll_per_pup[if_id][pup] =
(max_adll_per_pup[if_id][pup] <
res0[if_id]) ?
(u8)res0[if_id] :
max_adll_per_pup[if_id][pup];
min_adll_per_pup[if_id][pup] =
(res0[if_id] >
min_adll_per_pup[if_id][pup]) ?
min_adll_per_pup[if_id][pup] :
(u8)
res0[if_id];
/*
* vs the Rx we are searching for the
* smallest value of DQ shift so all
* Bus would fail
*/
adll_shift_val[if_id][pup] =
(pbs_mode == PBS_RX_MODE) ?
max_adll_per_pup[if_id][pup] :
min_adll_per_pup[if_id][pup];
}
}
}
}
/* EEBA */
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
if (pup_state[if_id][pup] != 4)
continue;
/*
* if pup state different from EEBA than move to
* next pup
*/
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x54 + effective_cs * 0x10) :
(0x14 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
ACCESS_TYPE_UNICAST, pup, DDR_PHY_DATA,
reg_addr, 0x1f));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x55 + effective_cs * 0x10) :
(0x15 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
ACCESS_TYPE_UNICAST, pup, DDR_PHY_DATA,
reg_addr, 0x1f));
/* initialize the Edge2 Max. */
adll_shift_val[if_id][pup] = 0;
min_adll_per_pup[if_id][pup] =
(pbs_mode == PBS_RX_MODE) ? 0x1f : 0x3f;
max_adll_per_pup[if_id][pup] = 0x0;
ddr3_tip_ip_training(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE, RESULT_PER_BIT,
HWS_CONTROL_ELEMENT_ADLL,
search_dir, dir,
tm->if_act_mask, init_val,
iterations, pbs_pattern,
search_edge, CS_SINGLE, cs_num,
train_status);
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("ADLL shift results:\n"));
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
mask_results_dq_reg_map[
bit + pup *
BUS_WIDTH_IN_BITS],
res0, MASK_ALL_BITS));
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("FP I/F %d, bit:%d, pup:%d res0 0x%x\n",
if_id, bit, pup,
res0[if_id]));
if ((res0[if_id] & 0x2000000) == 0) {
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
(" -- EEBA Fail\n"));
bit = BUS_WIDTH_IN_BITS;
/* exit bit loop */
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("-- EEBA Fail Training IP\n"));
/*
* training machine failed but pass
* before in the EBA so maybe the DQS
* shift change env.
*/
pup_state[if_id][pup] = 2;
adll_shift_lock[if_id][pup] = 0;
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x54 + effective_cs * 0x10) :
(0x14 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num,
ACCESS_TYPE_UNICAST,
if_id,
ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
0x0));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x55 + effective_cs * 0x10) :
(0x15 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num,
ACCESS_TYPE_UNICAST,
if_id,
ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
0x0));
continue;
} else if ((res0[if_id] & res_valid_mask) ==
validation_val) {
/* exit bit loop */
bit = BUS_WIDTH_IN_BITS;
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("-- FAIL EEBA\n"));
/* this pup move to SBA */
pup_state[if_id][pup] = 2;
adll_shift_lock[if_id][pup] = 0;
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x54 + effective_cs * 0x10) :
(0x14 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num,
ACCESS_TYPE_UNICAST,
if_id,
ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
0x0));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x55 + effective_cs * 0x10) :
(0x15 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num,
ACCESS_TYPE_UNICAST,
if_id,
ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
0x0));
continue;
} else {
adll_shift_lock[if_id][pup] = 1;
/*
* The search ended in Pass we need
* Fail
*/
res0[if_id] =
(pbs_mode == PBS_RX_MODE) ?
((res0[if_id] &
res_valid_mask) + 1) :
((res0[if_id] &
res_valid_mask) - 1);
max_adll_per_pup[if_id][pup] =
(max_adll_per_pup[if_id][pup] <
res0[if_id]) ?
(u8)res0[if_id] :
max_adll_per_pup[if_id][pup];
min_adll_per_pup[if_id][pup] =
(res0[if_id] >
min_adll_per_pup[if_id][pup]) ?
min_adll_per_pup[if_id][pup] :
(u8)res0[if_id];
/*
* vs the Rx we are searching for the
* smallest value of DQ shift so all Bus
* would fail
*/
adll_shift_val[if_id][pup] =
(pbs_mode == PBS_RX_MODE) ?
max_adll_per_pup[if_id][pup] :
min_adll_per_pup[if_id][pup];
}
}
}
}
/* Print Stage result */
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("FP I/F %d, ADLL Shift for EBA: pup[%d] Lock status = %d Lock Val = %d,%d\n",
if_id, pup,
adll_shift_lock[if_id][pup],
max_adll_per_pup[if_id][pup],
min_adll_per_pup[if_id][pup]));
}
}
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("Update ADLL Shift of all pups:\n"));
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
if (adll_shift_lock[if_id][pup] != 1)
continue;
/* if pup not locked continue to next pup */
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x3 + effective_cs * 4) :
(0x1 + effective_cs * 4);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
ACCESS_TYPE_UNICAST, pup, DDR_PHY_DATA,
reg_addr, adll_shift_val[if_id][pup]));
DEBUG_PBS_ENGINE(DEBUG_LEVEL_TRACE,
("FP I/F %d, Pup[%d] = %d\n", if_id,
pup, adll_shift_val[if_id][pup]));
}
}
/* PBS EEBA&EBA */
/* Start the Per Bit Skew search */
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
max_pbs_per_pup[if_id][pup] = 0x0;
min_pbs_per_pup[if_id][pup] = 0x1f;
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
/* reset result for PBS */
result_all_bit[bit + pup * BUS_WIDTH_IN_BITS +
if_id * MAX_BUS_NUM *
BUS_WIDTH_IN_BITS] = 0;
}
}
}
iterations = 31;
search_dir = HWS_LOW2HIGH;
/* !!!!! ran sh (search_dir == HWS_LOW2HIGH)?0:iterations; */
init_val = 0;
ddr3_tip_ip_training(dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE,
ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE,
RESULT_PER_BIT, HWS_CONTROL_ELEMENT_DQ_SKEW,
search_dir, dir, tm->if_act_mask, init_val,
iterations, pbs_pattern, search_edge,
CS_SINGLE, cs_num, train_status);
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
if (adll_shift_lock[if_id][pup] != 1) {
/* if pup not lock continue to next pup */
continue;
}
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
mask_results_dq_reg_map[
bit +
pup * BUS_WIDTH_IN_BITS],
res0, MASK_ALL_BITS));
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("Per Bit Skew search, FP I/F %d, bit:%d, pup:%d res0 0x%x\n",
if_id, bit, pup,
res0[if_id]));
if ((res0[if_id] & 0x2000000) == 0) {
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("--EBA PBS Fail - Training IP machine\n"));
/* exit the bit loop */
bit = BUS_WIDTH_IN_BITS;
/*
* ADLL is no long in lock need new
* search
*/
adll_shift_lock[if_id][pup] = 0;
/* Move to SBA */
pup_state[if_id][pup] = 2;
max_pbs_per_pup[if_id][pup] = 0x0;
min_pbs_per_pup[if_id][pup] = 0x1f;
continue;
} else {
temp = (u8)(res0[if_id] &
res_valid_mask);
max_pbs_per_pup[if_id][pup] =
(temp >
max_pbs_per_pup[if_id][pup]) ?
temp :
max_pbs_per_pup[if_id][pup];
min_pbs_per_pup[if_id][pup] =
(temp <
min_pbs_per_pup[if_id][pup]) ?
temp :
min_pbs_per_pup[if_id][pup];
result_all_bit[bit +
pup * BUS_WIDTH_IN_BITS +
if_id * MAX_BUS_NUM *
BUS_WIDTH_IN_BITS] =
temp;
}
}
}
}
/* Check all Pup lock */
all_lock = 1;
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
all_lock = all_lock * adll_shift_lock[if_id][pup];
}
}
/* Only if not all Pups Lock */
if (all_lock == 0) {
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("##########ADLL shift for SBA###########\n"));
/* ADLL shift for SBA */
search_dir = (pbs_mode == PBS_RX_MODE) ? HWS_LOW2HIGH :
HWS_HIGH2LOW;
init_val = (search_dir == HWS_LOW2HIGH) ? 0 : iterations;
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1;
if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
if (adll_shift_lock[if_id][pup] == 1) {
/*if pup lock continue to next pup */
continue;
}
/*init the var altogth init before */
adll_shift_lock[if_id][pup] = 0;
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x54 + effective_cs * 0x10) :
(0x14 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr, 0));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x55 + effective_cs * 0x10) :
(0x15 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr, 0));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x5f + effective_cs * 0x10) :
(0x1f + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr, 0));
/* initilaze the Edge2 Max. */
adll_shift_val[if_id][pup] = 0;
min_adll_per_pup[if_id][pup] = 0x1f;
max_adll_per_pup[if_id][pup] = 0x0;
ddr3_tip_ip_training(dev_num,
ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
RESULT_PER_BIT,
HWS_CONTROL_ELEMENT_ADLL,
search_dir, dir,
tm->if_act_mask,
init_val, iterations,
pbs_pattern,
search_edge, CS_SINGLE,
cs_num, train_status);
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num,
ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
mask_results_dq_reg_map
[bit +
pup *
BUS_WIDTH_IN_BITS],
res0, MASK_ALL_BITS));
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
("FP I/F %d, bit:%d, pup:%d res0 0x%x\n",
if_id, bit, pup, res0[if_id]));
if ((res0[if_id] & 0x2000000) == 0) {
/* exit the bit loop */
bit = BUS_WIDTH_IN_BITS;
/* Fail SBA --> Fail PBS */
pup_state[if_id][pup] = 1;
DEBUG_PBS_ENGINE
(DEBUG_LEVEL_INFO,
(" SBA Fail\n"));
continue;
} else {
/*
* - increment to get all
* 8 bit lock.
*/
adll_shift_lock[if_id][pup]++;
/*
* The search ended in Pass
* we need Fail
*/
res0[if_id] =
(pbs_mode == PBS_RX_MODE) ?
((res0[if_id] & res_valid_mask) + 1) :
((res0[if_id] & res_valid_mask) - 1);
max_adll_per_pup[if_id][pup] =
(max_adll_per_pup[if_id]
[pup] < res0[if_id]) ?
(u8)res0[if_id] :
max_adll_per_pup[if_id][pup];
min_adll_per_pup[if_id][pup] =
(res0[if_id] >
min_adll_per_pup[if_id]
[pup]) ?
min_adll_per_pup[if_id][pup] :
(u8)res0[if_id];
/*
* vs the Rx we are searching for
* the smallest value of DQ shift
* so all Bus would fail
*/
adll_shift_val[if_id][pup] =
(pbs_mode == PBS_RX_MODE) ?
max_adll_per_pup[if_id][pup] :
min_adll_per_pup[if_id][pup];
}
}
/* 1 is lock */
adll_shift_lock[if_id][pup] =
(adll_shift_lock[if_id][pup] == 8) ?
1 : 0;
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x3 + effective_cs * 4) :
(0x1 + effective_cs * 4);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
adll_shift_val[if_id][pup]));
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
("adll_shift_lock[%x][%x] = %x\n",
if_id, pup,
adll_shift_lock[if_id][pup]));
}
}
/* End ADLL Shift for SBA */
/* Start the Per Bit Skew search */
/* The ADLL shift finished with a Pass */
search_edge = (pbs_mode == PBS_RX_MODE) ? EDGE_PF : EDGE_FP;
search_dir = (pbs_mode == PBS_RX_MODE) ?
HWS_LOW2HIGH : HWS_HIGH2LOW;
iterations = 0x1f;
/* - The initial value is different in Rx and Tx mode */
init_val = (pbs_mode == PBS_RX_MODE) ? 0 : iterations;
ddr3_tip_ip_training(dev_num, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE, ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE, RESULT_PER_BIT,
HWS_CONTROL_ELEMENT_DQ_SKEW,
search_dir, dir, tm->if_act_mask,
init_val, iterations, pbs_pattern,
search_edge, CS_SINGLE, cs_num,
train_status);
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1;
if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num,
ACCESS_TYPE_MULTICAST,
PARAM_NOT_CARE,
mask_results_dq_reg_map
[bit +
pup *
BUS_WIDTH_IN_BITS],
res0, MASK_ALL_BITS));
if (pup_state[if_id][pup] != 2) {
/*
* if pup is not SBA continue
* to next pup
*/
bit = BUS_WIDTH_IN_BITS;
continue;
}
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
("Per Bit Skew search, PF I/F %d, bit:%d, pup:%d res0 0x%x\n",
if_id, bit, pup, res0[if_id]));
if ((res0[if_id] & 0x2000000) == 0) {
DEBUG_PBS_ENGINE
(DEBUG_LEVEL_INFO,
("SBA Fail\n"));
max_pbs_per_pup[if_id][pup] =
0x1f;
result_all_bit[
bit + pup *
BUS_WIDTH_IN_BITS +
if_id * MAX_BUS_NUM *
BUS_WIDTH_IN_BITS] =
0x1f;
} else {
temp = (u8)(res0[if_id] &
res_valid_mask);
max_pbs_per_pup[if_id][pup] =
(temp >
max_pbs_per_pup[if_id]
[pup]) ? temp :
max_pbs_per_pup
[if_id][pup];
min_pbs_per_pup[if_id][pup] =
(temp <
min_pbs_per_pup[if_id]
[pup]) ? temp :
min_pbs_per_pup
[if_id][pup];
result_all_bit[
bit + pup *
BUS_WIDTH_IN_BITS +
if_id * MAX_BUS_NUM *
BUS_WIDTH_IN_BITS] =
temp;
adll_shift_lock[if_id][pup] = 1;
}
}
}
}
/* Check all Pup state */
all_lock = 1;
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
/*
* DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
* ("pup_state[%d][%d] = %d\n",if_id,pup,pup_state
* [if_id][pup]));
*/
}
}
/* END OF SBA */
/* Norm */
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1;
if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
/* if pup not lock continue to next pup */
if (adll_shift_lock[if_id][pup] != 1) {
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_ERROR,
("PBS failed for IF #%d\n",
if_id));
training_result[training_stage][if_id]
= TEST_FAILED;
result_mat[if_id][pup][bit] = 0;
max_pbs_per_pup[if_id][pup] = 0;
min_pbs_per_pup[if_id][pup] = 0;
} else {
training_result[
training_stage][if_id] =
(training_result[training_stage]
[if_id] == TEST_FAILED) ?
TEST_FAILED : TEST_SUCCESS;
result_mat[if_id][pup][bit] =
result_all_bit[
bit + pup *
BUS_WIDTH_IN_BITS +
if_id * MAX_BUS_NUM *
BUS_WIDTH_IN_BITS] -
min_pbs_per_pup[if_id][pup];
}
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
("The abs min_pbs[%d][%d] = %d\n",
if_id, pup,
min_pbs_per_pup[if_id][pup]));
}
}
}
/* Clean all results */
ddr3_tip_clean_pbs_result(dev_num, pbs_mode);
/* DQ PBS register update with the final result */
for (if_id = 0; if_id < MAX_INTERFACE_NUM; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
for (pup = 0; pup < tm->num_of_bus_per_interface; pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
("Final Results: if_id %d, pup %d, Pup State: %d\n",
if_id, pup, pup_state[if_id][pup]));
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
if (dq_map_table == NULL) {
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_ERROR,
("dq_map_table not initialized\n"));
return MV_FAIL;
}
pad_num = dq_map_table[
bit + pup * BUS_WIDTH_IN_BITS +
if_id * BUS_WIDTH_IN_BITS *
tm->num_of_bus_per_interface];
DEBUG_PBS_ENGINE(DEBUG_LEVEL_INFO,
("result_mat: %d ",
result_mat[if_id][pup]
[bit]));
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(PBS_RX_PHY_REG + effective_cs * 0x10) :
(PBS_TX_PHY_REG + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr + pad_num,
result_mat[if_id][pup][bit]));
}
pbsdelay_per_pup[pbs_mode][if_id][pup] =
(max_pbs_per_pup[if_id][pup] ==
min_pbs_per_pup[if_id][pup]) ?
TYPICAL_PBS_VALUE :
((max_adll_per_pup[if_id][pup] -
min_adll_per_pup[if_id][pup]) * adll_tap /
(max_pbs_per_pup[if_id][pup] -
min_pbs_per_pup[if_id][pup]));
/* RX results ready, write RX also */
if (pbs_mode == PBS_TX_MODE) {
/* Write TX results */
reg_addr = (0x14 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
(max_pbs_per_pup[if_id][pup] -
min_pbs_per_pup[if_id][pup]) /
2));
reg_addr = (0x15 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
(max_pbs_per_pup[if_id][pup] -
min_pbs_per_pup[if_id][pup]) /
2));
/* Write previously stored RX results */
reg_addr = (0x54 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
result_mat_rx_dqs[if_id][pup]
[effective_cs]));
reg_addr = (0x55 + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr,
result_mat_rx_dqs[if_id][pup]
[effective_cs]));
} else {
/*
* RX results may affect RL results correctess,
* so just store the results that will written
* in TX stage
*/
result_mat_rx_dqs[if_id][pup][effective_cs] =
(max_pbs_per_pup[if_id][pup] -
min_pbs_per_pup[if_id][pup]) / 2;
}
DEBUG_PBS_ENGINE(
DEBUG_LEVEL_INFO,
(", PBS tap=%d [psec] ==> skew observed = %d\n",
pbsdelay_per_pup[pbs_mode][if_id][pup],
((max_pbs_per_pup[if_id][pup] -
min_pbs_per_pup[if_id][pup]) *
pbsdelay_per_pup[pbs_mode][if_id][pup])));
}
}
/* Write back to the phy the default values */
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(READ_CENTRALIZATION_PHY_REG + effective_cs * 4) :
(WRITE_CENTRALIZATION_PHY_REG + effective_cs * 4);
write_adll_value(nominal_adll, reg_addr);
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
reg_addr = (pbs_mode == PBS_RX_MODE) ?
(0x5a + effective_cs * 0x10) :
(0x1a + effective_cs * 0x10);
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
ACCESS_TYPE_UNICAST, pup, DDR_PHY_DATA, reg_addr,
0));
/* restore cs enable value */
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
CHECK_STATUS(ddr3_tip_if_write
(dev_num, ACCESS_TYPE_UNICAST, if_id,
CS_ENABLE_REG, cs_enable_reg_val[if_id],
MASK_ALL_BITS));
}
/* exit test mode */
CHECK_STATUS(ddr3_tip_if_write
(dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE,
ODPG_WRITE_READ_MODE_ENABLE_REG, 0xffff, MASK_ALL_BITS));
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
/*
* meaning that there is no VW exist at all (No lock at
* the EBA ADLL shift at EBS)
*/
if (pup_state[if_id][pup] == 1)
return MV_FAIL;
}
return MV_OK;
}
/*
* Name: ddr3_tip_pbs_rx.
* Desc: PBS TX
* Args: TBD
* Notes:
* Returns: OK if success, other error code if fail.
*/
int ddr3_tip_pbs_rx(u32 uidev_num)
{
return ddr3_tip_pbs(uidev_num, PBS_RX_MODE);
}
/*
* Name: ddr3_tip_pbs_tx.
* Desc: PBS TX
* Args: TBD
* Notes:
* Returns: OK if success, other error code if fail.
*/
int ddr3_tip_pbs_tx(u32 uidev_num)
{
return ddr3_tip_pbs(uidev_num, PBS_TX_MODE);
}
#ifndef EXCLUDE_SWITCH_DEBUG
/*
* Print PBS Result
*/
int ddr3_tip_print_all_pbs_result(u32 dev_num)
{
u32 curr_cs;
u32 max_cs = hws_ddr3_tip_max_cs_get();
for (curr_cs = 0; curr_cs < max_cs; curr_cs++) {
ddr3_tip_print_pbs_result(dev_num, curr_cs, PBS_RX_MODE);
ddr3_tip_print_pbs_result(dev_num, curr_cs, PBS_TX_MODE);
}
return MV_OK;
}
/*
* Print PBS Result
*/
int ddr3_tip_print_pbs_result(u32 dev_num, u32 cs_num, enum pbs_dir pbs_mode)
{
u32 data_value = 0, bit = 0, if_id = 0, pup = 0;
u32 reg_addr = (pbs_mode == PBS_RX_MODE) ?
(PBS_RX_PHY_REG + cs_num * 0x10) :
(PBS_TX_PHY_REG + cs_num * 0x10);
struct hws_topology_map *tm = ddr3_get_topology_map();
printf("CS%d, %s ,PBS\n", cs_num,
(pbs_mode == PBS_RX_MODE) ? "Rx" : "Tx");
for (bit = 0; bit < BUS_WIDTH_IN_BITS; bit++) {
printf("%s, DQ", (pbs_mode == PBS_RX_MODE) ? "Rx" : "Tx");
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
printf("%d ,PBS,,, ", bit);
for (pup = 0; pup <= tm->num_of_bus_per_interface;
pup++) {
VALIDATE_ACTIVE(tm->bus_act_mask, pup);
CHECK_STATUS(ddr3_tip_bus_read
(dev_num, if_id,
ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr + bit,
&data_value));
printf("%d , ", data_value);
}
}
printf("\n");
}
printf("\n");
return MV_OK;
}
#endif
/*
* Fixup PBS Result
*/
int ddr3_tip_clean_pbs_result(u32 dev_num, enum pbs_dir pbs_mode)
{
u32 if_id, pup, bit;
u32 reg_addr = (pbs_mode == PBS_RX_MODE) ?
(PBS_RX_PHY_REG + effective_cs * 0x10) :
(PBS_TX_PHY_REG + effective_cs * 0x10);
struct hws_topology_map *tm = ddr3_get_topology_map();
for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) {
VALIDATE_ACTIVE(tm->if_act_mask, if_id);
for (pup = 0; pup <= tm->num_of_bus_per_interface; pup++) {
for (bit = 0; bit <= BUS_WIDTH_IN_BITS + 3; bit++) {
CHECK_STATUS(ddr3_tip_bus_write
(dev_num, ACCESS_TYPE_UNICAST,
if_id, ACCESS_TYPE_UNICAST, pup,
DDR_PHY_DATA, reg_addr + bit, 0));
}
}
}
return MV_OK;
}
Reference in a new issue View git blame Copy permalink