diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/soc/mediatek/mt8192/dramc_pi_basic_api.c | 1 | ||||
-rw-r--r-- | src/soc/mediatek/mt8192/dramc_pi_calibration_api.c | 352 | ||||
-rw-r--r-- | src/soc/mediatek/mt8192/include/soc/dramc_pi_api.h | 2 |
3 files changed, 355 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8192/dramc_pi_basic_api.c b/src/soc/mediatek/mt8192/dramc_pi_basic_api.c index 37aa055e62..24f9620149 100644 --- a/src/soc/mediatek/mt8192/dramc_pi_basic_api.c +++ b/src/soc/mediatek/mt8192/dramc_pi_basic_api.c @@ -3790,6 +3790,7 @@ static void dramc_init(const struct ddr_cali *cali) { dramc_setting(cali); dramc_reset_delay_chain_before_calibration(); + dramc_8_phase_cal(cali); } static void dramc_before_calibration(const struct ddr_cali *cali) diff --git a/src/soc/mediatek/mt8192/dramc_pi_calibration_api.c b/src/soc/mediatek/mt8192/dramc_pi_calibration_api.c index c63322472e..19a964ae77 100644 --- a/src/soc/mediatek/mt8192/dramc_pi_calibration_api.c +++ b/src/soc/mediatek/mt8192/dramc_pi_calibration_api.c @@ -225,3 +225,355 @@ void dramc_sw_impedance_save_register(const struct ddr_cali *cali) dramc_set_broadcast(bc_bak); } + +static void dramc_phy_reset(u8 chn) +{ + SET32_BITFIELDS(&ch[chn].ao.rx_set0, RX_SET0_RDATRST, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_ctrl1, MISC_CTRL1_R_DMPHYRST, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.dvs_b[0].b0_dq9, + B0_DQ9_RG_RX_ARDQS0_STBEN_RESETB_B0, 0, + B0_DQ9_RG_RX_ARDQ_STBEN_RESETB_B0, 0); + SET32_BITFIELDS(&ch[chn].phy_ao.dvs_b[1].b0_dq9, + B1_DQ9_RG_RX_ARDQS0_STBEN_RESETB_B1, 0, + B1_DQ9_RG_RX_ARDQ_STBEN_RESETB_B1, 0); + udelay(1); + SET32_BITFIELDS(&ch[chn].phy_ao.dvs_b[1].b0_dq9, + B1_DQ9_RG_RX_ARDQS0_STBEN_RESETB_B1, 1, + B1_DQ9_RG_RX_ARDQ_STBEN_RESETB_B1, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.dvs_b[0].b0_dq9, + B0_DQ9_RG_RX_ARDQS0_STBEN_RESETB_B0, 1, + B0_DQ9_RG_RX_ARDQ_STBEN_RESETB_B0, 1); + SET32_BITFIELDS(&ch[chn].phy_ao.misc_ctrl1, MISC_CTRL1_R_DMPHYRST, 0); + SET32_BITFIELDS(&ch[chn].ao.rx_set0, RX_SET0_RDATRST, 0); +} + +static int dramc_8_phase_cal_find_best_dly(u8 phase_sm, u8 ph_dly, u8 ph_dly_back, + int *ph_dly_final, int *ph_dly_loop_break) +{ + const u8 early_break_cnt = 5; + static u8 loop_cnt = 0; + static u16 r0 = 0xffff, r180 = 0xffff, r_tmp = 0xffff, p_tmp = 0xffff; + s16 err_code; + static s16 err_code_min = 0x7fff; + u16 dqs_dly; + const u16 jm_dly_start = 0, jm_dly_end = 512, jm_dly_step = 1; + u32 sample_cnt, ones_cnt; + u8 dqs_level = DQS_LEVEL_UNKNOWN; + + dramc_dbg("8PH dly = %u\n", ph_dly); + *ph_dly_loop_break = 0; + + SET32_BITFIELDS(&ch[0].phy_ao.byte[0].shu_b0_dq1, + SHU_B0_DQ1_RG_ARPI_MIDPI_8PH_DLY_B0, ph_dly); + SET32_BITFIELDS(&ch[0].phy_ao.byte[1].shu_b0_dq1, + SHU_B1_DQ1_RG_ARPI_MIDPI_8PH_DLY_B1, ph_dly); + SET32_BITFIELDS(&ch[0].phy_ao.shu_ca_cmd1, + SHU_CA_CMD1_RG_ARPI_MIDPI_8PH_DLY_CA, ph_dly); + + for (dqs_dly = jm_dly_start; dqs_dly < jm_dly_end; dqs_dly += jm_dly_step) { + /* Set DQS delay */ + SET32_BITFIELDS(&ch[0].phy_ao.dvs_b[0].b0_phy2, + B0_PHY2_RG_RX_ARDQS_JM_DLY_B0, dqs_dly); + SET32_BITFIELDS(&ch[0].phy_ao.dvs_b[1].b0_phy2, + B1_PHY2_RG_RX_ARDQS_JM_DLY_B1, dqs_dly); + dramc_phy_reset(0); + SET32_BITFIELDS(&ch[0].phy_ao.misc_dutyscan1, + MISC_DUTYSCAN1_REG_SW_RST, 1); + SET32_BITFIELDS(&ch[0].phy_ao.misc_dutyscan1, + MISC_DUTYSCAN1_REG_SW_RST, 0); + SET32_BITFIELDS(&ch[0].phy_ao.misc_dutyscan1, + MISC_DUTYSCAN1_RX_EYE_SCAN_EN, 1); + udelay(10); + SET32_BITFIELDS(&ch[0].phy_ao.misc_dutyscan1, + MISC_DUTYSCAN1_RX_EYE_SCAN_EN, 0); + sample_cnt = READ32_BITFIELD(&ch[0].phy_nao.misc_duty_toggle_cnt, + MISC_DUTY_TOGGLE_CNT_TOGGLE_CNT); + ones_cnt = READ32_BITFIELD(&ch[0].phy_nao.misc_duty_dqs0_err_cnt, + MISC_DUTY_DQS0_ERR_CNT_DQS0_ERR_CNT); + + if (ones_cnt < sample_cnt / 2) { + if (dqs_level == DQS_LEVEL_UNKNOWN) + dramc_dbg("[L] %u, %8u\n", dqs_dly, ones_cnt); + dqs_level = 0; + } else if (dqs_level == 0) { + dqs_level = 1; + dramc_dbg("[H] %u, %8u\n", dqs_dly, ones_cnt); + + if (phase_sm == DQS_8PH_DEGREE_0) { + r0 = dqs_dly; + dramc_dbg("R0 = %u\n", r0); + } else if (phase_sm == DQS_8PH_DEGREE_180) { + r180 = dqs_dly; + if (r180 <= r0) { + dqs_level = DQS_LEVEL_UNKNOWN; + continue; + } + + r_tmp = r0 + ((r180 - r0) >> 2); + dramc_dbg("R = %u, R180 = %u\n", r_tmp, r180); + } else if (phase_sm == DQS_8PH_DEGREE_45) { + p_tmp = dqs_dly; + dramc_dbg("p_tmp = %u, R0 = %u\n", p_tmp, r0); + if (p_tmp <= r0) { + dqs_level = DQS_LEVEL_UNKNOWN; + continue; + } + + err_code = ABS(p_tmp - r_tmp); + + if (err_code == 0) { + *ph_dly_final = ph_dly; + *ph_dly_loop_break = 1; + } else if (err_code < err_code_min) { + err_code_min = err_code; + *ph_dly_final = ph_dly; + loop_cnt = 0; + } else { + loop_cnt++; + if (loop_cnt > early_break_cnt) + *ph_dly_loop_break = 1; + } + + dramc_dbg("diff (P-R) = %d, min = %d, break count = %u\n", + err_code, err_code_min, loop_cnt); + } else { + die("Invalid phase_sm: %u!\n", phase_sm); + } + + break; + } + } + + if (dqs_level == DQS_LEVEL_UNKNOWN || dqs_level == 0) { + *ph_dly_final = ph_dly_back; + dramc_err("8-Phase SM_%u failed, falling back to default\n", phase_sm); + return 0; + } else if (*ph_dly_loop_break) { + return -1; + } + + return -2; +} + +static void dramc_8_phase_cal_set_best_dly(const struct ddr_cali *cali, u8 ph_dly_back) +{ + u8 dqsien_pi; + u8 phase_sm, ph_dly, ph_start, ph_end; + int ph_dly_loop_break; + int ph_dly_final = 0xff; /* default delay: 0xff */ + + for (phase_sm = DQS_8PH_DEGREE_0; phase_sm < DQS_8PH_DEGREE_MAX; phase_sm++) { + switch (phase_sm) { + case DQS_8PH_DEGREE_0: + dqsien_pi = 16; + ph_start = 0; + ph_end = 1; + break; + case DQS_8PH_DEGREE_180: + dqsien_pi = 48; + ph_start = 0; + ph_end = 1; + break; + case DQS_8PH_DEGREE_45: + dqsien_pi = 24; + ph_start = 0; + ph_end = 32; + break; + default: + die("Invalid phase_sm: %u!\n", phase_sm); + return; + } + + dramc_dbg("8-Phase SM_%u, 8PH_dly (%u~%u), DQSIEN PI = %u, 8PH_Dly = %u\n", + phase_sm, ph_start, ph_end, dqsien_pi, ph_dly_back); + + for (u8 rk = RANK_0; rk < cali->support_ranks; rk++) + SET32_BITFIELDS(&ch[0].phy_ao.byte[0].rk[rk].shu_rk_b0_dqsien_pi_dly, + SHU_RK_B0_DQSIEN_PI_DLY_DQSIEN_PI_B0, dqsien_pi); + + for (ph_dly = ph_start; ph_dly < ph_end; ph_dly++) { + int ret = dramc_8_phase_cal_find_best_dly(phase_sm, ph_dly, + ph_dly_back, &ph_dly_final, &ph_dly_loop_break); + if (ret == 0) + goto final_found; + if (ph_dly_loop_break) + break; + } + } + +final_found: + dramc_dbg("8 phase calibration ph_dly_final = %u\n", ph_dly_final); + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) { + SET32_BITFIELDS(&ch[chn].phy_ao.byte[0].shu_b0_dq1, + SHU_B0_DQ1_RG_ARPI_MIDPI_8PH_DLY_B0, ph_dly_final); + SET32_BITFIELDS(&ch[chn].phy_ao.byte[1].shu_b0_dq1, + SHU_B1_DQ1_RG_ARPI_MIDPI_8PH_DLY_B1, ph_dly_final); + SET32_BITFIELDS(&ch[chn].phy_ao.shu_ca_cmd1, + SHU_CA_CMD1_RG_ARPI_MIDPI_8PH_DLY_CA, ph_dly_final); + } +} + +void dramc_8_phase_cal(const struct ddr_cali *cali) +{ + u8 ph_dly_back = 0; + dram_freq_grp freq_group = cali->freq_group; + /* ch0 and ch1 of phy_ao */ + struct ddrphy_ao_regs *phy_ao = &ch[0].phy_ao; + struct ddrphy_ao_regs *phy_ao_ch1 = &ch[1].phy_ao; + + if (freq_group < DDRFREQ_2133) { + dramc_info("Freq %u < 2133, do not need do 8-Phase\n", get_frequency(cali)); + return; + } + + struct reg_bak regs_bak[] = { + {&phy_ao->misc_dutyscan1}, + {&phy_ao->dvs_b[0].b0_dq6}, + {&phy_ao->dvs_b[1].b0_dq6}, + {&phy_ao->dvs_b[0].b0_dq5}, + {&phy_ao->dvs_b[1].b0_dq5}, + {&phy_ao->dvs_b[0].b0_dq3}, + {&phy_ao->dvs_b[1].b0_dq3}, + {&phy_ao->misc_ctrl1}, + {&phy_ao->misc_ctrl4}, + {&phy_ao->dvs_b[0].b0_phy2}, + {&phy_ao->dvs_b[1].b0_phy2}, + {&phy_ao->byte[0].shu_b0_dll_arpi2}, + {&phy_ao->byte[1].shu_b0_dll_arpi2}, + {&phy_ao->byte[0].shu_b0_dq11}, + {&phy_ao->byte[1].shu_b0_dq11}, + {&phy_ao->shu_ca_cmd11}, + {&phy_ao->misc_stbcal}, + {&phy_ao->byte[0].rk[0].shu_rk_b0_dqsien_pi_dly}, + {&phy_ao->byte[0].rk[1].shu_rk_b0_dqsien_pi_dly}, + {&phy_ao->misc_jmeter}, + {&phy_ao->misc_shu_stbcal}, + {&phy_ao->shu_ca_dll1}, + {&phy_ao->byte[0].shu_b0_dll1}, + {&phy_ao->byte[1].shu_b0_dll1}, + {&phy_ao->dvs_b[0].b0_dq2}, + {&phy_ao->dvs_b[1].b0_dq2}, + {&phy_ao->ca_cmd2}, + {&phy_ao->byte[0].shu_b0_dq13}, + {&phy_ao->byte[1].shu_b0_dq13}, + {&phy_ao->shu_ca_cmd13}, + {&phy_ao_ch1->shu_ca_dll1}, + {&phy_ao_ch1->byte[0].shu_b0_dll1}, + {&phy_ao_ch1->byte[1].shu_b0_dll1}, + {&phy_ao_ch1->dvs_b[0].b0_dq2}, + {&phy_ao_ch1->dvs_b[1].b0_dq2}, + {&phy_ao_ch1->ca_cmd2}, + {&phy_ao_ch1->byte[0].shu_b0_dq13}, + {&phy_ao_ch1->byte[1].shu_b0_dq13}, + {&phy_ao_ch1->shu_ca_cmd13}, + }; + for (size_t i = 0; i < ARRAY_SIZE(regs_bak); i++) + regs_bak[i].value = read32(regs_bak[i].addr); + + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) { + phy_ao = &ch[chn].phy_ao; + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_dq2, + B0_DQ2_RG_TX_ARDQS_OE_TIE_SEL_B0, 0, + B0_DQ2_RG_TX_ARDQS_OE_TIE_EN_B0, 1, + B0_DQ2_RG_TX_ARWCK_OE_TIE_SEL_B0, 0, + B0_DQ2_RG_TX_ARWCK_OE_TIE_EN_B0, 1, + B0_DQ2_RG_TX_ARWCKB_OE_TIE_SEL_B0, 0, + B0_DQ2_RG_TX_ARWCKB_OE_TIE_EN_B0, 1, + B0_DQ2_RG_TX_ARDQM_OE_TIE_SEL_B0, 0, + B0_DQ2_RG_TX_ARDQM_OE_TIE_EN_B0, 1, + B0_DQ2_RG_TX_ARDQ_OE_TIE_SEL_B0, 0, + B0_DQ2_RG_TX_ARDQ_OE_TIE_EN_B0, 0xff); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_dq2, + B1_DQ2_RG_TX_ARDQS_OE_TIE_SEL_B1, 0, + B1_DQ2_RG_TX_ARDQS_OE_TIE_EN_B1, 1, + B1_DQ2_RG_TX_ARWCK_OE_TIE_SEL_B1, 0, + B1_DQ2_RG_TX_ARWCK_OE_TIE_EN_B1, 1, + B1_DQ2_RG_TX_ARWCKB_OE_TIE_SEL_B1, 0, + B1_DQ2_RG_TX_ARWCKB_OE_TIE_EN_B1, 1, + B1_DQ2_RG_TX_ARDQM_OE_TIE_SEL_B1, 0, + B1_DQ2_RG_TX_ARDQM_OE_TIE_EN_B1, 1, + B1_DQ2_RG_TX_ARDQ_OE_TIE_SEL_B1, 0, + B1_DQ2_RG_TX_ARDQ_OE_TIE_EN_B1, 0xff); + SET32_BITFIELDS(&phy_ao->ca_cmd2, + CA_CMD2_RG_TX_ARCLK_OE_TIE_SEL_CA, 0, + CA_CMD2_RG_TX_ARCLK_OE_TIE_EN_CA, 1, + CA_CMD2_RG_TX_ARCS_OE_TIE_SEL_CA, 0, + CA_CMD2_RG_TX_ARCS_OE_TIE_EN_CA, 1, + CA_CMD2_RG_TX_ARCA_OE_TIE_SEL_CA, 0, + CA_CMD2_RG_TX_ARCA_OE_TIE_EN_CA, 0xff); + SET32_BITFIELDS(&phy_ao->byte[0].shu_b0_dq13, + SHU_B0_DQ13_RG_TX_ARDQSB_OE_TIE_SEL_B0, 0, + SHU_B0_DQ13_RG_TX_ARDQSB_OE_TIE_EN_B0, 1); + SET32_BITFIELDS(&phy_ao->byte[1].shu_b0_dq13, + SHU_B1_DQ13_RG_TX_ARDQSB_OE_TIE_SEL_B1, 0, + SHU_B1_DQ13_RG_TX_ARDQSB_OE_TIE_EN_B1, 1); + SET32_BITFIELDS(&phy_ao->shu_ca_cmd13, + SHU_CA_CMD13_RG_TX_ARCLKB_OE_TIE_SEL_CA, 0, + SHU_CA_CMD13_RG_TX_ARCLKB_OE_TIE_EN_CA, 1); + } + + phy_ao = &ch[0].phy_ao; + ph_dly_back = READ32_BITFIELD(&phy_ao->byte[0].shu_b0_dq1, + SHU_B0_DQ1_RG_ARPI_MIDPI_8PH_DLY_B0); + SET32_BITFIELDS(&phy_ao->misc_shu_stbcal, + MISC_SHU_STBCAL_STBCALEN, 0x0, + MISC_SHU_STBCAL_STB_SELPHCALEN, 0x0); + SET32_BITFIELDS(&phy_ao->byte[0].shu_b0_dq11, + SHU_B0_DQ11_RG_RX_ARDQ_RANK_SEL_SER_EN_B0, 0); + SET32_BITFIELDS(&phy_ao->byte[1].shu_b0_dq11, + SHU_B1_DQ11_RG_RX_ARDQ_RANK_SEL_SER_EN_B1, 0); + SET32_BITFIELDS(&phy_ao->shu_ca_cmd11, + SHU_CA_CMD11_RG_RX_ARCA_RANK_SEL_SER_EN_CA, 0); + + for (u8 chn = 0; chn < CHANNEL_MAX; chn++) { + phy_ao = &ch[chn].phy_ao; + SET32_BITFIELDS(&phy_ao->shu_ca_dll1, + SHU_CA_DLL1_RG_ARDLL_PHDET_EN_CA, 0x0, + SHU_CA_DLL1_RG_ARDLL_PHDET_OUT_SEL_CA, 0x0); + SET32_BITFIELDS(&phy_ao->byte[0].shu_b0_dll1, + SHU_B0_DLL1_RG_ARDLL_PHDET_EN_B0, 0x0, + SHU_B0_DLL1_RG_ARDLL_PHDET_OUT_SEL_B0, 0x0); + SET32_BITFIELDS(&phy_ao->byte[1].shu_b0_dll1, + SHU_B1_DLL1_RG_ARDLL_PHDET_EN_B1, 0x0, + SHU_B1_DLL1_RG_ARDLL_PHDET_OUT_SEL_B1, 0x0); + } + + phy_ao = &ch[0].phy_ao; + SET32_BITFIELDS(&phy_ao->misc_ctrl1, MISC_CTRL1_R_DMDQSIENCG_EN, 0); + SET32_BITFIELDS(&phy_ao->byte[0].shu_b0_dll_arpi2, + SHU_B0_DLL_ARPI2_RG_ARPI_CG_DQSIEN_B0, 0); + SET32_BITFIELDS(&phy_ao->byte[1].shu_b0_dll_arpi2, + SHU_B1_DLL_ARPI2_RG_ARPI_CG_DQSIEN_B1, 0); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, + MISC_DUTYSCAN1_RX_EYE_SCAN_CG_EN, 1); + SET32_BITFIELDS(&phy_ao->misc_ctrl4, MISC_CTRL4_R_OPT2_CG_DQSIEN, 0); + SET32_BITFIELDS(&phy_ao->misc_stbcal, MISC_STBCAL_DQSIENCG_NORMAL_EN, 0); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_dq6, + B0_DQ6_RG_RX_ARDQ_EYE_DLY_DQS_BYPASS_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_dq6, + B1_DQ6_RG_RX_ARDQ_EYE_DLY_DQS_BYPASS_B1, 1); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, MISC_DUTYSCAN1_RX_EYE_SCAN_EN, 1); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, + MISC_DUTYSCAN1_EYESCAN_DQS_SYNC_EN, 0x1, + MISC_DUTYSCAN1_EYESCAN_NEW_DQ_SYNC_EN, 0x1, + MISC_DUTYSCAN1_EYESCAN_DQ_SYNC_EN, 0x1); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_dq5, B0_DQ5_RG_RX_ARDQ_EYE_EN_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_dq5, B1_DQ5_RG_RX_ARDQ_EYE_EN_B1, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_dq5, B0_DQ5_RG_RX_ARDQ_VREF_EN_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_dq5, B1_DQ5_RG_RX_ARDQ_VREF_EN_B1, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_dq3, B0_DQ3_RG_RX_ARDQ_SMT_EN_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_dq3, B1_DQ3_RG_RX_ARDQ_SMT_EN_B1, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_phy2, B0_PHY2_RG_RX_ARDQS_JM_EN_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_phy2, B1_PHY2_RG_RX_ARDQS_JM_EN_B1, 1); + SET32_BITFIELDS(&phy_ao->misc_jmeter, MISC_JMETER_JMTR_EN, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[0].b0_phy2, B0_PHY2_RG_RX_ARDQS_JM_SEL_B0, 1); + SET32_BITFIELDS(&phy_ao->dvs_b[1].b0_phy2, B1_PHY2_RG_RX_ARDQS_JM_SEL_B1, 1); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, MISC_DUTYSCAN1_RX_MIOCK_JIT_EN, 1); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, MISC_DUTYSCAN1_RX_EYE_SCAN_EN, 0); + SET32_BITFIELDS(&phy_ao->misc_dutyscan1, MISC_DUTYSCAN1_DQSERRCNT_DIS, 0); + + dramc_8_phase_cal_set_best_dly(cali, ph_dly_back); + + for (size_t i = 0; i < ARRAY_SIZE(regs_bak); i++) + write32(regs_bak[i].addr, regs_bak[i].value); +} diff --git a/src/soc/mediatek/mt8192/include/soc/dramc_pi_api.h b/src/soc/mediatek/mt8192/include/soc/dramc_pi_api.h index 5a2583cb7f..2dee0445c3 100644 --- a/src/soc/mediatek/mt8192/include/soc/dramc_pi_api.h +++ b/src/soc/mediatek/mt8192/include/soc/dramc_pi_api.h @@ -34,6 +34,8 @@ #define REG_SHU_OFFSET_WIDTH 0x700 #define SHU_OFFSET (REG_SHU_OFFSET_WIDTH / 4) +#define DQS_LEVEL_UNKNOWN 0xff + typedef enum { DDRFREQ_400, DDRFREQ_600, |