diff options
Diffstat (limited to 'drivers/ddr/marvell/a38x/ddr3_training_static.c')
| -rw-r--r-- | drivers/ddr/marvell/a38x/ddr3_training_static.c | 538 |
1 files changed, 538 insertions, 0 deletions
diff --git a/drivers/ddr/marvell/a38x/ddr3_training_static.c b/drivers/ddr/marvell/a38x/ddr3_training_static.c new file mode 100644 index 0000000000..5101f3f383 --- /dev/null +++ b/drivers/ddr/marvell/a38x/ddr3_training_static.c @@ -0,0 +1,538 @@ +/* + * 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" + +/* Design Guidelines parameters */ +u32 g_zpri_data = 123; /* controller data - P drive strength */ +u32 g_znri_data = 123; /* controller data - N drive strength */ +u32 g_zpri_ctrl = 74; /* controller C/A - P drive strength */ +u32 g_znri_ctrl = 74; /* controller C/A - N drive strength */ +u32 g_zpodt_data = 45; /* controller data - P ODT */ +u32 g_znodt_data = 45; /* controller data - N ODT */ +u32 g_zpodt_ctrl = 45; /* controller data - P ODT */ +u32 g_znodt_ctrl = 45; /* controller data - N ODT */ +u32 g_odt_config = 0x120012; +u32 g_rtt_nom = 0x44; +u32 g_dic = 0x2; + +#ifdef STATIC_ALGO_SUPPORT + +#define PARAM_NOT_CARE 0 +#define MAX_STATIC_SEQ 48 + +u32 silicon_delay[HWS_MAX_DEVICE_NUM]; +struct hws_tip_static_config_info static_config[HWS_MAX_DEVICE_NUM]; +static reg_data *static_init_controller_config[HWS_MAX_DEVICE_NUM]; + +/* debug delay in write leveling */ +int wl_debug_delay = 0; +/* pup register #3 for functional board */ +int function_reg_value = 8; +u32 silicon; + +u32 read_ready_delay_phase_offset[] = { 4, 4, 4, 4, 6, 6, 6, 6 }; + +static struct cs_element chip_select_map[] = { + /* CS Value (single only) Num_CS */ + {0, 0}, + {0, 1}, + {1, 1}, + {0, 2}, + {2, 1}, + {0, 2}, + {0, 2}, + {0, 3}, + {3, 1}, + {0, 2}, + {0, 2}, + {0, 3}, + {0, 2}, + {0, 3}, + {0, 3}, + {0, 4} +}; + +/* + * Register static init controller DB + */ +int ddr3_tip_init_specific_reg_config(u32 dev_num, reg_data *reg_config_arr) +{ + static_init_controller_config[dev_num] = reg_config_arr; + return MV_OK; +} + +/* + * Register static info DB + */ +int ddr3_tip_init_static_config_db( + u32 dev_num, struct hws_tip_static_config_info *static_config_info) +{ + static_config[dev_num].board_trace_arr = + static_config_info->board_trace_arr; + static_config[dev_num].package_trace_arr = + static_config_info->package_trace_arr; + silicon_delay[dev_num] = static_config_info->silicon_delay; + + return MV_OK; +} + +/* + * Static round trip flow - Calculates the total round trip delay. + */ +int ddr3_tip_static_round_trip_arr_build(u32 dev_num, + struct trip_delay_element *table_ptr, + int is_wl, u32 *round_trip_delay_arr) +{ + u32 bus_index, global_bus; + u32 if_id; + u32 bus_per_interface; + int sign; + u32 temp; + u32 board_trace; + struct trip_delay_element *pkg_delay_ptr; + struct hws_topology_map *tm = ddr3_get_topology_map(); + + /* + * In WL we calc the diff between Clock to DQs in RL we sum the round + * trip of Clock and DQs + */ + sign = (is_wl) ? -1 : 1; + + bus_per_interface = GET_TOPOLOGY_NUM_OF_BUSES(); + + for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) { + VALIDATE_ACTIVE(tm->if_act_mask, if_id); + for (bus_index = 0; bus_index < bus_per_interface; + bus_index++) { + VALIDATE_ACTIVE(tm->bus_act_mask, bus_index); + global_bus = (if_id * bus_per_interface) + bus_index; + + /* calculate total trip delay (package and board) */ + board_trace = (table_ptr[global_bus].dqs_delay * sign) + + table_ptr[global_bus].ck_delay; + temp = (board_trace * 163) / 1000; + + /* Convert the length to delay in psec units */ + pkg_delay_ptr = + static_config[dev_num].package_trace_arr; + round_trip_delay_arr[global_bus] = temp + + (int)(pkg_delay_ptr[global_bus].dqs_delay * + sign) + + (int)pkg_delay_ptr[global_bus].ck_delay + + (int)((is_wl == 1) ? wl_debug_delay : + (int)silicon_delay[dev_num]); + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("Round Trip Build round_trip_delay_arr[0x%x]: 0x%x temp 0x%x\n", + global_bus, round_trip_delay_arr[global_bus], + temp)); + } + } + + return MV_OK; +} + +/* + * Write leveling for static flow - calculating the round trip delay of the + * DQS signal. + */ +int ddr3_tip_write_leveling_static_config(u32 dev_num, u32 if_id, + enum hws_ddr_freq frequency, + u32 *round_trip_delay_arr) +{ + u32 bus_index; /* index to the bus loop */ + u32 bus_start_index; + u32 bus_per_interface; + u32 phase = 0; + u32 adll = 0, adll_cen, adll_inv, adll_final; + u32 adll_period = MEGA / freq_val[frequency] / 64; + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("ddr3_tip_write_leveling_static_config\n")); + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("dev_num 0x%x IF 0x%x freq %d (adll_period 0x%x)\n", + dev_num, if_id, frequency, adll_period)); + + bus_per_interface = GET_TOPOLOGY_NUM_OF_BUSES(); + bus_start_index = if_id * bus_per_interface; + for (bus_index = bus_start_index; + bus_index < (bus_start_index + bus_per_interface); bus_index++) { + VALIDATE_ACTIVE(tm->bus_act_mask, bus_index); + phase = round_trip_delay_arr[bus_index] / (32 * adll_period); + adll = (round_trip_delay_arr[bus_index] - + (phase * 32 * adll_period)) / adll_period; + adll = (adll > 31) ? 31 : adll; + adll_cen = 16 + adll; + adll_inv = adll_cen / 32; + adll_final = adll_cen - (adll_inv * 32); + adll_final = (adll_final > 31) ? 31 : adll_final; + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("\t%d - phase 0x%x adll 0x%x\n", + bus_index, phase, adll)); + /* + * Writing to all 4 phy of Interface number, + * bit 0 \96 4 \96 ADLL, bit 6-8 phase + */ + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + (bus_index % 4), DDR_PHY_DATA, + PHY_WRITE_DELAY(cs), + ((phase << 6) + (adll & 0x1f)), 0x1df)); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + ACCESS_TYPE_UNICAST, (bus_index % 4), + DDR_PHY_DATA, WRITE_CENTRALIZATION_PHY_REG, + ((adll_inv & 0x1) << 5) + adll_final)); + } + + return MV_OK; +} + +/* + * Read leveling for static flow + */ +int ddr3_tip_read_leveling_static_config(u32 dev_num, + u32 if_id, + enum hws_ddr_freq frequency, + u32 *total_round_trip_delay_arr) +{ + u32 cs, data0, data1, data3 = 0; + u32 bus_index; /* index to the bus loop */ + u32 bus_start_index; + u32 phase0, phase1, max_phase; + u32 adll0, adll1; + u32 cl_value; + u32 min_delay; + u32 sdr_period = MEGA / freq_val[frequency]; + u32 ddr_period = MEGA / freq_val[frequency] / 2; + u32 adll_period = MEGA / freq_val[frequency] / 64; + enum hws_speed_bin speed_bin_index; + u32 rd_sample_dly[MAX_CS_NUM] = { 0 }; + u32 rd_ready_del[MAX_CS_NUM] = { 0 }; + u32 bus_per_interface = GET_TOPOLOGY_NUM_OF_BUSES(); + struct hws_topology_map *tm = ddr3_get_topology_map(); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("ddr3_tip_read_leveling_static_config\n")); + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("dev_num 0x%x ifc 0x%x freq %d\n", dev_num, + if_id, frequency)); + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("Sdr_period 0x%x Ddr_period 0x%x adll_period 0x%x\n", + sdr_period, ddr_period, adll_period)); + + if (tm->interface_params[first_active_if].memory_freq == + frequency) { + cl_value = tm->interface_params[first_active_if].cas_l; + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("cl_value 0x%x\n", cl_value)); + } else { + speed_bin_index = tm->interface_params[if_id].speed_bin_index; + cl_value = cas_latency_table[speed_bin_index].cl_val[frequency]; + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("cl_value 0x%x speed_bin_index %d\n", + cl_value, speed_bin_index)); + } + + bus_start_index = if_id * bus_per_interface; + + for (bus_index = bus_start_index; + bus_index < (bus_start_index + bus_per_interface); + bus_index += 2) { + VALIDATE_ACTIVE(tm->bus_act_mask, bus_index); + cs = chip_select_map[ + tm->interface_params[if_id].as_bus_params[ + (bus_index % 4)].cs_bitmask].cs_num; + + /* read sample delay calculation */ + min_delay = (total_round_trip_delay_arr[bus_index] < + total_round_trip_delay_arr[bus_index + 1]) ? + total_round_trip_delay_arr[bus_index] : + total_round_trip_delay_arr[bus_index + 1]; + /* round down */ + rd_sample_dly[cs] = 2 * (min_delay / (sdr_period * 2)); + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("\t%d - min_delay 0x%x cs 0x%x rd_sample_dly[cs] 0x%x\n", + bus_index, min_delay, cs, rd_sample_dly[cs])); + + /* phase calculation */ + phase0 = (total_round_trip_delay_arr[bus_index] - + (sdr_period * rd_sample_dly[cs])) / (ddr_period); + phase1 = (total_round_trip_delay_arr[bus_index + 1] - + (sdr_period * rd_sample_dly[cs])) / (ddr_period); + max_phase = (phase0 > phase1) ? phase0 : phase1; + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("\tphase0 0x%x phase1 0x%x max_phase 0x%x\n", + phase0, phase1, max_phase)); + + /* ADLL calculation */ + adll0 = (u32)((total_round_trip_delay_arr[bus_index] - + (sdr_period * rd_sample_dly[cs]) - + (ddr_period * phase0)) / adll_period); + adll0 = (adll0 > 31) ? 31 : adll0; + adll1 = (u32)((total_round_trip_delay_arr[bus_index + 1] - + (sdr_period * rd_sample_dly[cs]) - + (ddr_period * phase1)) / adll_period); + adll1 = (adll1 > 31) ? 31 : adll1; + + /* The Read delay close the Read FIFO */ + rd_ready_del[cs] = rd_sample_dly[cs] + + read_ready_delay_phase_offset[max_phase]; + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_TRACE, + ("\tadll0 0x%x adll1 0x%x rd_ready_del[cs] 0x%x\n", + adll0, adll1, rd_ready_del[cs])); + + /* + * Write to the phy of Interface (bit 0 \96 4 \96 ADLL, + * bit 6-8 phase) + */ + data0 = ((phase0 << 6) + (adll0 & 0x1f)); + data1 = ((phase1 << 6) + (adll1 & 0x1f)); + + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + (bus_index % 4), DDR_PHY_DATA, PHY_READ_DELAY(cs), + data0, 0x1df)); + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + ((bus_index + 1) % 4), DDR_PHY_DATA, + PHY_READ_DELAY(cs), data1, 0x1df)); + } + + for (bus_index = 0; bus_index < bus_per_interface; bus_index++) { + VALIDATE_ACTIVE(tm->bus_act_mask, bus_index); + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + bus_index, DDR_PHY_DATA, 0x3, data3, 0x1f)); + } + CHECK_STATUS(ddr3_tip_if_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + READ_DATA_SAMPLE_DELAY, + (rd_sample_dly[0] + cl_value) + (rd_sample_dly[1] << 8), + MASK_ALL_BITS)); + + /* Read_ready_del0 bit 0-4 , CS bits 8-12 */ + CHECK_STATUS(ddr3_tip_if_write + (dev_num, ACCESS_TYPE_UNICAST, if_id, + READ_DATA_READY_DELAY, + rd_ready_del[0] + (rd_ready_del[1] << 8) + cl_value, + MASK_ALL_BITS)); + + return MV_OK; +} + +/* + * DDR3 Static flow + */ +int ddr3_tip_run_static_alg(u32 dev_num, enum hws_ddr_freq freq) +{ + u32 if_id = 0; + struct trip_delay_element *table_ptr; + u32 wl_total_round_trip_delay_arr[MAX_TOTAL_BUS_NUM]; + u32 rl_total_round_trip_delay_arr[MAX_TOTAL_BUS_NUM]; + struct init_cntr_param init_cntr_prm; + int ret; + struct hws_topology_map *tm = ddr3_get_topology_map(); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("ddr3_tip_run_static_alg")); + + init_cntr_prm.do_mrs_phy = 1; + init_cntr_prm.is_ctrl64_bit = 0; + init_cntr_prm.init_phy = 1; + ret = hws_ddr3_tip_init_controller(dev_num, &init_cntr_prm); + if (ret != MV_OK) { + DEBUG_TRAINING_STATIC_IP( + DEBUG_LEVEL_ERROR, + ("hws_ddr3_tip_init_controller failure\n")); + } + + /* calculate the round trip delay for Write Leveling */ + table_ptr = static_config[dev_num].board_trace_arr; + CHECK_STATUS(ddr3_tip_static_round_trip_arr_build + (dev_num, table_ptr, 1, + wl_total_round_trip_delay_arr)); + /* calculate the round trip delay for Read Leveling */ + CHECK_STATUS(ddr3_tip_static_round_trip_arr_build + (dev_num, table_ptr, 0, + rl_total_round_trip_delay_arr)); + + for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) { + /* check if the interface is enabled */ + VALIDATE_ACTIVE(tm->if_act_mask, if_id); + /* + * Static frequency is defined according to init-frequency + * (not target) + */ + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Static IF %d freq %d\n", + if_id, freq)); + CHECK_STATUS(ddr3_tip_write_leveling_static_config + (dev_num, if_id, freq, + wl_total_round_trip_delay_arr)); + CHECK_STATUS(ddr3_tip_read_leveling_static_config + (dev_num, if_id, freq, + rl_total_round_trip_delay_arr)); + } + + return MV_OK; +} + +/* + * Init controller for static flow + */ +int ddr3_tip_static_init_controller(u32 dev_num) +{ + u32 index_cnt = 0; + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("ddr3_tip_static_init_controller\n")); + while (static_init_controller_config[dev_num][index_cnt].reg_addr != + 0) { + CHECK_STATUS(ddr3_tip_if_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + static_init_controller_config[dev_num][index_cnt]. + reg_addr, + static_init_controller_config[dev_num][index_cnt]. + reg_data, + static_init_controller_config[dev_num][index_cnt]. + reg_mask)); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Init_controller index_cnt %d\n", + index_cnt)); + index_cnt++; + } + + return MV_OK; +} + +int ddr3_tip_static_phy_init_controller(u32 dev_num) +{ + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Phy Init Controller 2\n")); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0xa4, + 0x3dfe)); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Phy Init Controller 3\n")); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0xa6, + 0xcb2)); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Phy Init Controller 4\n")); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0xa9, + 0)); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Static Receiver Calibration\n")); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0xd0, + 0x1f)); + + DEBUG_TRAINING_STATIC_IP(DEBUG_LEVEL_TRACE, + ("Static V-REF Calibration\n")); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0xa8, + 0x434)); + + return MV_OK; +} +#endif + +/* + * Configure phy (called by static init controller) for static flow + */ +int ddr3_tip_configure_phy(u32 dev_num) +{ + u32 if_id, phy_id; + struct hws_topology_map *tm = ddr3_get_topology_map(); + + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, + PAD_ZRI_CALIB_PHY_REG, + ((0x7f & g_zpri_data) << 7 | (0x7f & g_znri_data)))); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_CONTROL, + PAD_ZRI_CALIB_PHY_REG, + ((0x7f & g_zpri_ctrl) << 7 | (0x7f & g_znri_ctrl)))); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, + PAD_ODT_CALIB_PHY_REG, + ((0x3f & g_zpodt_data) << 6 | (0x3f & g_znodt_data)))); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_CONTROL, + PAD_ODT_CALIB_PHY_REG, + ((0x3f & g_zpodt_ctrl) << 6 | (0x3f & g_znodt_ctrl)))); + + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, + PAD_PRE_DISABLE_PHY_REG, 0)); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, + CMOS_CONFIG_PHY_REG, 0)); + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_CONTROL, + CMOS_CONFIG_PHY_REG, 0)); + + for (if_id = 0; if_id <= MAX_INTERFACE_NUM - 1; if_id++) { + /* check if the interface is enabled */ + VALIDATE_ACTIVE(tm->if_act_mask, if_id); + + for (phy_id = 0; + phy_id < tm->num_of_bus_per_interface; + phy_id++) { + VALIDATE_ACTIVE(tm->bus_act_mask, phy_id); + /* Vref & clamp */ + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, + if_id, phy_id, DDR_PHY_DATA, + PAD_CONFIG_PHY_REG, + ((clamp_tbl[if_id] << 4) | vref), + ((0x7 << 4) | 0x7))); + /* clamp not relevant for control */ + CHECK_STATUS(ddr3_tip_bus_read_modify_write + (dev_num, ACCESS_TYPE_UNICAST, + if_id, phy_id, DDR_PHY_CONTROL, + PAD_CONFIG_PHY_REG, 0x4, 0x7)); + } + } + + CHECK_STATUS(ddr3_tip_bus_write + (dev_num, ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, + ACCESS_TYPE_MULTICAST, PARAM_NOT_CARE, DDR_PHY_DATA, 0x90, + 0x6002)); + + return MV_OK; +} |
