diff options
Diffstat (limited to 'drivers/ddr/marvell/a38x/ddr3_training_bist.c')
-rw-r--r-- | drivers/ddr/marvell/a38x/ddr3_training_bist.c | 289 |
1 files changed, 289 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_training_bist.c b/drivers/ddr/marvell/a38x/ddr3_training_bist.c new file mode 100644 index 0000000000..bd0e26068e --- /dev/null +++ b/drivers/ddr/marvell/a38x/ddr3_training_bist.c @@ -0,0 +1,289 @@ +/* + * 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" + +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)); + } +} |