u-boot/drivers/ddr/marvell/a38x/ddr3_training_bist.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

288 lines
7.8 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) Marvell International Ltd. and its affiliates
*/
#include <common.h>
#include <spl.h>
#include <asm/io.h>
#include <asm/arch/cpu.h>
#include <asm/arch/soc.h>
#include "ddr3_init.h"
static u32 bist_offset = 32;
enum hws_pattern sweep_pattern = PATTERN_KILLER_DQ0;
static int ddr3_tip_bist_operation(u32 dev_num,
enum hws_access_type access_type,
u32 if_id,
enum hws_bist_operation oper_type);
/*
* BIST activate
*/
int ddr3_tip_bist_activate(u32 dev_num, enum hws_pattern pattern,
enum hws_access_type access_type, u32 if_num,
enum hws_dir direction,
enum hws_stress_jump addr_stress_jump,
enum hws_pattern_duration duration,
enum hws_bist_operation oper_type,
u32 offset, u32 cs_num, u32 pattern_addr_length)
{
u32 tx_burst_size;
u32 delay_between_burst;
u32 rd_mode, val;
u32 poll_cnt = 0, max_poll = 1000, i, start_if, end_if;
struct pattern_info *pattern_table = ddr3_tip_get_pattern_table();
u32 read_data[MAX_INTERFACE_NUM];
struct hws_topology_map *tm = ddr3_get_topology_map();
/* ODPG Write enable from BIST */
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_num,
ODPG_DATA_CONTROL_REG, 0x1, 0x1));
/* ODPG Read enable/disable from BIST */
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_num,
ODPG_DATA_CONTROL_REG,
(direction == OPER_READ) ?
0x2 : 0, 0x2));
CHECK_STATUS(ddr3_tip_load_pattern_to_odpg(dev_num, access_type, if_num,
pattern, offset));
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_num,
ODPG_DATA_BUF_SIZE_REG,
pattern_addr_length, MASK_ALL_BITS));
tx_burst_size = (direction == OPER_WRITE) ?
pattern_table[pattern].tx_burst_size : 0;
delay_between_burst = (direction == OPER_WRITE) ? 2 : 0;
rd_mode = (direction == OPER_WRITE) ? 1 : 0;
CHECK_STATUS(ddr3_tip_configure_odpg
(dev_num, access_type, if_num, direction,
pattern_table[pattern].num_of_phases_tx, tx_burst_size,
pattern_table[pattern].num_of_phases_rx,
delay_between_burst,
rd_mode, cs_num, addr_stress_jump, duration));
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_num,
ODPG_PATTERN_ADDR_OFFSET_REG,
offset, MASK_ALL_BITS));
if (oper_type == BIST_STOP) {
CHECK_STATUS(ddr3_tip_bist_operation(dev_num, access_type,
if_num, BIST_STOP));
} else {
CHECK_STATUS(ddr3_tip_bist_operation(dev_num, access_type,
if_num, BIST_START));
if (duration != DURATION_CONT) {
/*
* This pdelay is a WA, becuase polling fives "done"
* also the odpg did nmot finish its task
*/
if (access_type == ACCESS_TYPE_MULTICAST) {
start_if = 0;
end_if = MAX_INTERFACE_NUM - 1;
} else {
start_if = if_num;
end_if = if_num;
}
for (i = start_if; i <= end_if; i++) {
VALIDATE_ACTIVE(tm->
if_act_mask, i);
for (poll_cnt = 0; poll_cnt < max_poll;
poll_cnt++) {
CHECK_STATUS(ddr3_tip_if_read
(dev_num,
ACCESS_TYPE_UNICAST,
if_num, ODPG_BIST_DONE,
read_data,
MASK_ALL_BITS));
val = read_data[i];
if ((val & 0x1) == 0x0) {
/*
* In SOC type devices this bit
* is self clear so, if it was
* cleared all good
*/
break;
}
}
if (poll_cnt >= max_poll) {
DEBUG_TRAINING_BIST_ENGINE
(DEBUG_LEVEL_ERROR,
("Bist poll failure 2\n"));
CHECK_STATUS(ddr3_tip_if_write
(dev_num,
ACCESS_TYPE_UNICAST,
if_num,
ODPG_DATA_CONTROL_REG, 0,
MASK_ALL_BITS));
return MV_FAIL;
}
}
CHECK_STATUS(ddr3_tip_bist_operation
(dev_num, access_type, if_num, BIST_STOP));
}
}
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_num,
ODPG_DATA_CONTROL_REG, 0,
MASK_ALL_BITS));
return MV_OK;
}
/*
* BIST read result
*/
int ddr3_tip_bist_read_result(u32 dev_num, u32 if_id,
struct bist_result *pst_bist_result)
{
int ret;
u32 read_data[MAX_INTERFACE_NUM];
struct hws_topology_map *tm = ddr3_get_topology_map();
if (IS_ACTIVE(tm->if_act_mask, if_id) == 0)
return MV_NOT_SUPPORTED;
DEBUG_TRAINING_BIST_ENGINE(DEBUG_LEVEL_TRACE,
("ddr3_tip_bist_read_result if_id %d\n",
if_id));
ret = ddr3_tip_if_read(dev_num, ACCESS_TYPE_UNICAST, if_id,
ODPG_BIST_FAILED_DATA_HI_REG, read_data,
MASK_ALL_BITS);
if (ret != MV_OK)
return ret;
pst_bist_result->bist_fail_high = read_data[if_id];
ret = ddr3_tip_if_read(dev_num, ACCESS_TYPE_UNICAST, if_id,
ODPG_BIST_FAILED_DATA_LOW_REG, read_data,
MASK_ALL_BITS);
if (ret != MV_OK)
return ret;
pst_bist_result->bist_fail_low = read_data[if_id];
ret = ddr3_tip_if_read(dev_num, ACCESS_TYPE_UNICAST, if_id,
ODPG_BIST_LAST_FAIL_ADDR_REG, read_data,
MASK_ALL_BITS);
if (ret != MV_OK)
return ret;
pst_bist_result->bist_last_fail_addr = read_data[if_id];
ret = ddr3_tip_if_read(dev_num, ACCESS_TYPE_UNICAST, if_id,
ODPG_BIST_DATA_ERROR_COUNTER_REG, read_data,
MASK_ALL_BITS);
if (ret != MV_OK)
return ret;
pst_bist_result->bist_error_cnt = read_data[if_id];
return MV_OK;
}
/*
* BIST flow - Activate & read result
*/
int hws_ddr3_run_bist(u32 dev_num, enum hws_pattern pattern, u32 *result,
u32 cs_num)
{
int ret;
u32 i = 0;
u32 win_base;
struct bist_result st_bist_result;
struct hws_topology_map *tm = ddr3_get_topology_map();
for (i = 0; i < MAX_INTERFACE_NUM; i++) {
VALIDATE_ACTIVE(tm->if_act_mask, i);
hws_ddr3_cs_base_adr_calc(i, cs_num, &win_base);
ret = ddr3_tip_bist_activate(dev_num, pattern,
ACCESS_TYPE_UNICAST,
i, OPER_WRITE, STRESS_NONE,
DURATION_SINGLE, BIST_START,
bist_offset + win_base,
cs_num, 15);
if (ret != MV_OK) {
printf("ddr3_tip_bist_activate failed (0x%x)\n", ret);
return ret;
}
ret = ddr3_tip_bist_activate(dev_num, pattern,
ACCESS_TYPE_UNICAST,
i, OPER_READ, STRESS_NONE,
DURATION_SINGLE, BIST_START,
bist_offset + win_base,
cs_num, 15);
if (ret != MV_OK) {
printf("ddr3_tip_bist_activate failed (0x%x)\n", ret);
return ret;
}
ret = ddr3_tip_bist_read_result(dev_num, i, &st_bist_result);
if (ret != MV_OK) {
printf("ddr3_tip_bist_read_result failed\n");
return ret;
}
result[i] = st_bist_result.bist_error_cnt;
}
return MV_OK;
}
/*
* Set BIST Operation
*/
static int ddr3_tip_bist_operation(u32 dev_num,
enum hws_access_type access_type,
u32 if_id, enum hws_bist_operation oper_type)
{
if (oper_type == BIST_STOP) {
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_id,
ODPG_BIST_DONE, 1 << 8, 1 << 8));
} else {
CHECK_STATUS(ddr3_tip_if_write(dev_num, access_type, if_id,
ODPG_BIST_DONE, 1, 1));
}
return MV_OK;
}
/*
* Print BIST result
*/
void ddr3_tip_print_bist_res(void)
{
u32 dev_num = 0;
u32 i;
struct bist_result st_bist_result[MAX_INTERFACE_NUM];
int res;
struct hws_topology_map *tm = ddr3_get_topology_map();
for (i = 0; i < MAX_INTERFACE_NUM; i++) {
if (IS_ACTIVE(tm->if_act_mask, i) == 0)
continue;
res = ddr3_tip_bist_read_result(dev_num, i, &st_bist_result[i]);
if (res != MV_OK) {
DEBUG_TRAINING_BIST_ENGINE(
DEBUG_LEVEL_ERROR,
("ddr3_tip_bist_read_result failed\n"));
return;
}
}
DEBUG_TRAINING_BIST_ENGINE(
DEBUG_LEVEL_INFO,
("interface | error_cnt | fail_low | fail_high | fail_addr\n"));
for (i = 0; i < MAX_INTERFACE_NUM; i++) {
if (IS_ACTIVE(tm->if_act_mask, i) ==
0)
continue;
DEBUG_TRAINING_BIST_ENGINE(
DEBUG_LEVEL_INFO,
("%d | 0x%08x | 0x%08x | 0x%08x | 0x%08x\n",
i, st_bist_result[i].bist_error_cnt,
st_bist_result[i].bist_fail_low,
st_bist_result[i].bist_fail_high,
st_bist_result[i].bist_last_fail_addr));
}
}