| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* This file is part of the coreboot project. */ |
| |
| #include <device/mmio.h> |
| #include <console/console.h> |
| #include <delay.h> |
| #include <soc/addressmap.h> |
| #include <soc/clock.h> |
| #include <soc/emc.h> |
| #include <soc/mc.h> |
| #include <soc/pmc.h> |
| #include <soc/sdram.h> |
| #include <symbols.h> |
| |
| |
| static void sdram_patch(uintptr_t addr, uint32_t value) |
| { |
| if (addr) |
| write32((uint32_t *)addr, value); |
| } |
| |
| static void writebits(uint32_t value, uint32_t *addr, uint32_t mask) |
| { |
| clrsetbits32(addr, mask, (value & mask)); |
| } |
| |
| /* PMC must be configured before clock-enable and de-reset of MC/EMC. */ |
| static void sdram_configure_pmc(const struct sdram_params *param, |
| struct tegra_pmc_regs *regs) |
| { |
| /* VDDP Select */ |
| write32(®s->vddp_sel, param->PmcVddpSel); |
| udelay(param->PmcVddpSelWait); |
| |
| /* Set DDR pad voltage */ |
| writebits(param->PmcDdrPwr, ®s->ddr_pwr, PMC_DDR_PWR_VAL_MASK); |
| |
| /* Set package and DPD pad control */ |
| writebits(param->PmcDdrCfg, ®s->ddr_cfg, |
| (PMC_DDR_CFG_PKG_MASK | PMC_DDR_CFG_IF_MASK | |
| PMC_DDR_CFG_XM0_RESET_TRI_MASK | |
| PMC_DDR_CFG_XM0_RESET_DPDIO_MASK)); |
| |
| /* Turn on MEM IO Power */ |
| writebits(param->PmcNoIoPower, ®s->no_iopower, |
| (PMC_NO_IOPOWER_MEM_MASK | PMC_NO_IOPOWER_MEM_COMP_MASK)); |
| |
| write32(®s->reg_short, param->PmcRegShort); |
| } |
| |
| static void sdram_start_clocks(const struct sdram_params *param) |
| { |
| u32 is_same_freq = (param->McEmemArbMisc0 & |
| MC_EMEM_ARB_MISC0_MC_EMC_SAME_FREQ_MASK) ? 1 : 0; |
| |
| clock_sdram(param->PllMInputDivider, param->PllMFeedbackDivider, |
| param->PllMSelectDiv2, param->PllMSetupControl, |
| param->PllMPDLshiftPh45, param->PllMPDLshiftPh90, |
| param->PllMPDLshiftPh135, param->PllMKVCO, |
| param->PllMKCP, param->PllMStableTime, |
| param->EmcClockSource, is_same_freq); |
| } |
| |
| static void sdram_deassert_clock_enable_signal(const struct sdram_params *param, |
| struct tegra_pmc_regs *regs) |
| { |
| clrbits32(®s->por_dpd_ctrl, |
| PMC_POR_DPD_CTRL_MEM0_HOLD_CKE_LOW_OVR_MASK); |
| udelay(param->PmcPorDpdCtrlWait); |
| } |
| |
| static void sdram_deassert_sel_dpd(const struct sdram_params *param, |
| struct tegra_pmc_regs *regs) |
| { |
| clrbits32(®s->por_dpd_ctrl, |
| (PMC_POR_DPD_CTRL_MEM0_ADDR0_CLK_SEL_DPD_MASK | |
| PMC_POR_DPD_CTRL_MEM0_ADDR1_CLK_SEL_DPD_MASK)); |
| /* |
| * Note NVIDIA recommended to always do 10us delay here and ignore |
| * BCT.PmcPorDpdCtrlWait. |
| * */ |
| udelay(10); |
| } |
| |
| static void sdram_set_swizzle(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| write32(®s->swizzle_rank0_byte_cfg, param->EmcSwizzleRank0ByteCfg); |
| write32(®s->swizzle_rank0_byte0, param->EmcSwizzleRank0Byte0); |
| write32(®s->swizzle_rank0_byte1, param->EmcSwizzleRank0Byte1); |
| write32(®s->swizzle_rank0_byte2, param->EmcSwizzleRank0Byte2); |
| write32(®s->swizzle_rank0_byte3, param->EmcSwizzleRank0Byte3); |
| write32(®s->swizzle_rank1_byte_cfg, param->EmcSwizzleRank1ByteCfg); |
| write32(®s->swizzle_rank1_byte0, param->EmcSwizzleRank1Byte0); |
| write32(®s->swizzle_rank1_byte1, param->EmcSwizzleRank1Byte1); |
| write32(®s->swizzle_rank1_byte2, param->EmcSwizzleRank1Byte2); |
| write32(®s->swizzle_rank1_byte3, param->EmcSwizzleRank1Byte3); |
| } |
| |
| static void sdram_set_pad_controls(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Program the pad controls */ |
| write32(®s->xm2cmdpadctrl, param->EmcXm2CmdPadCtrl); |
| write32(®s->xm2cmdpadctrl2, param->EmcXm2CmdPadCtrl2); |
| write32(®s->xm2cmdpadctrl3, param->EmcXm2CmdPadCtrl3); |
| write32(®s->xm2cmdpadctrl4, param->EmcXm2CmdPadCtrl4); |
| write32(®s->xm2cmdpadctrl5, param->EmcXm2CmdPadCtrl5); |
| |
| write32(®s->xm2dqspadctrl, param->EmcXm2DqsPadCtrl); |
| write32(®s->xm2dqspadctrl2, param->EmcXm2DqsPadCtrl2); |
| write32(®s->xm2dqspadctrl3, param->EmcXm2DqsPadCtrl3); |
| write32(®s->xm2dqspadctrl4, param->EmcXm2DqsPadCtrl4); |
| write32(®s->xm2dqspadctrl5, param->EmcXm2DqsPadCtrl5); |
| write32(®s->xm2dqspadctrl6, param->EmcXm2DqsPadCtrl6); |
| |
| write32(®s->xm2dqpadctrl, param->EmcXm2DqPadCtrl); |
| write32(®s->xm2dqpadctrl2, param->EmcXm2DqPadCtrl2); |
| write32(®s->xm2dqpadctrl3, param->EmcXm2DqPadCtrl3); |
| |
| write32(®s->xm2clkpadctrl, param->EmcXm2ClkPadCtrl); |
| write32(®s->xm2clkpadctrl2, param->EmcXm2ClkPadCtrl2); |
| |
| write32(®s->xm2comppadctrl, param->EmcXm2CompPadCtrl); |
| |
| write32(®s->xm2vttgenpadctrl, param->EmcXm2VttGenPadCtrl); |
| write32(®s->xm2vttgenpadctrl2, param->EmcXm2VttGenPadCtrl2); |
| write32(®s->xm2vttgenpadctrl3, param->EmcXm2VttGenPadCtrl3); |
| |
| write32(®s->ctt_term_ctrl, param->EmcCttTermCtrl); |
| } |
| |
| static void sdram_trigger_emc_timing_update(struct tegra_emc_regs *regs) |
| { |
| write32(®s->timing_control, EMC_TIMING_CONTROL_TIMING_UPDATE); |
| } |
| |
| static void sdram_init_mc(const struct sdram_params *param, |
| struct tegra_mc_regs *regs) |
| { |
| /* Initialize MC VPR settings */ |
| write32(®s->display_snap_ring, param->McDisplaySnapRing); |
| write32(®s->video_protect_bom, param->McVideoProtectBom); |
| write32(®s->video_protect_bom_adr_hi, |
| param->McVideoProtectBomAdrHi); |
| write32(®s->video_protect_size_mb, param->McVideoProtectSizeMb); |
| write32(®s->video_protect_vpr_override, |
| param->McVideoProtectVprOverride); |
| write32(®s->video_protect_vpr_override1, |
| param->McVideoProtectVprOverride1); |
| write32(®s->video_protect_gpu_override_0, |
| param->McVideoProtectGpuOverride0); |
| write32(®s->video_protect_gpu_override_1, |
| param->McVideoProtectGpuOverride1); |
| |
| /* Program SDRAM geometry paarameters */ |
| write32(®s->emem_adr_cfg, param->McEmemAdrCfg); |
| write32(®s->emem_adr_cfg_dev0, param->McEmemAdrCfgDev0); |
| write32(®s->emem_adr_cfg_dev1, param->McEmemAdrCfgDev1); |
| |
| /* Program bank swizzling */ |
| write32(®s->emem_bank_swizzle_cfg0, param->McEmemAdrCfgBankMask0); |
| write32(®s->emem_bank_swizzle_cfg1, param->McEmemAdrCfgBankMask1); |
| write32(®s->emem_bank_swizzle_cfg2, param->McEmemAdrCfgBankMask2); |
| write32(®s->emem_bank_swizzle_cfg3, |
| param->McEmemAdrCfgBankSwizzle3); |
| |
| /* Program external memory aperature (base and size) */ |
| write32(®s->emem_cfg, param->McEmemCfg); |
| |
| /* Program SEC carveout (base and size) */ |
| write32(®s->sec_carveout_bom, param->McSecCarveoutBom); |
| write32(®s->sec_carveout_adr_hi, param->McSecCarveoutAdrHi); |
| write32(®s->sec_carveout_size_mb, param->McSecCarveoutSizeMb); |
| |
| /* Program MTS carveout (base and size) */ |
| write32(®s->mts_carveout_bom, param->McMtsCarveoutBom); |
| write32(®s->mts_carveout_adr_hi, param->McMtsCarveoutAdrHi); |
| write32(®s->mts_carveout_size_mb, param->McMtsCarveoutSizeMb); |
| |
| /* Program the memory arbiter */ |
| write32(®s->emem_arb_cfg, param->McEmemArbCfg); |
| write32(®s->emem_arb_outstanding_req, |
| param->McEmemArbOutstandingReq); |
| write32(®s->emem_arb_timing_rcd, param->McEmemArbTimingRcd); |
| write32(®s->emem_arb_timing_rp, param->McEmemArbTimingRp); |
| write32(®s->emem_arb_timing_rc, param->McEmemArbTimingRc); |
| write32(®s->emem_arb_timing_ras, param->McEmemArbTimingRas); |
| write32(®s->emem_arb_timing_faw, param->McEmemArbTimingFaw); |
| write32(®s->emem_arb_timing_rrd, param->McEmemArbTimingRrd); |
| write32(®s->emem_arb_timing_rap2pre, param->McEmemArbTimingRap2Pre); |
| write32(®s->emem_arb_timing_wap2pre, param->McEmemArbTimingWap2Pre); |
| write32(®s->emem_arb_timing_r2r, param->McEmemArbTimingR2R); |
| write32(®s->emem_arb_timing_w2w, param->McEmemArbTimingW2W); |
| write32(®s->emem_arb_timing_r2w, param->McEmemArbTimingR2W); |
| write32(®s->emem_arb_timing_w2r, param->McEmemArbTimingW2R); |
| write32(®s->emem_arb_da_turns, param->McEmemArbDaTurns); |
| write32(®s->emem_arb_da_covers, param->McEmemArbDaCovers); |
| write32(®s->emem_arb_misc0, param->McEmemArbMisc0); |
| write32(®s->emem_arb_misc1, param->McEmemArbMisc1); |
| write32(®s->emem_arb_ring1_throttle, param->McEmemArbRing1Throttle); |
| write32(®s->emem_arb_override, param->McEmemArbOverride); |
| write32(®s->emem_arb_override_1, param->McEmemArbOverride1); |
| write32(®s->emem_arb_rsv, param->McEmemArbRsv); |
| |
| /* Program extra snap levels for display client */ |
| write32(®s->dis_extra_snap_levels, param->McDisExtraSnapLevels); |
| |
| /* Trigger MC timing update */ |
| write32(®s->timing_control, MC_TIMING_CONTROL_TIMING_UPDATE); |
| |
| /* Program second-level clock enable overrides */ |
| write32(®s->clken_override, param->McClkenOverride); |
| |
| /* Program statistics gathering */ |
| write32(®s->stat_control, param->McStatControl); |
| } |
| |
| static void sdram_init_emc(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Program SDRAM geometry parameters */ |
| write32(®s->adr_cfg, param->EmcAdrCfg); |
| |
| /* Program second-level clock enable overrides */ |
| write32(®s->clken_override, param->EmcClkenOverride); |
| |
| /* Program EMC pad auto calibration */ |
| write32(®s->auto_cal_interval, param->EmcAutoCalInterval); |
| write32(®s->auto_cal_config2, param->EmcAutoCalConfig2); |
| write32(®s->auto_cal_config3, param->EmcAutoCalConfig3); |
| write32(®s->auto_cal_config, param->EmcAutoCalConfig); |
| udelay(param->EmcAutoCalWait); |
| } |
| |
| static void sdram_set_emc_timing(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Program EMC timing configuration */ |
| write32(®s->cfg_2, param->EmcCfg2); |
| write32(®s->cfg_pipe, param->EmcCfgPipe); |
| write32(®s->dbg, param->EmcDbg); |
| write32(®s->cmdq, param->EmcCmdQ); |
| write32(®s->mc2emcq, param->EmcMc2EmcQ); |
| write32(®s->mrs_wait_cnt, param->EmcMrsWaitCnt); |
| write32(®s->mrs_wait_cnt2, param->EmcMrsWaitCnt2); |
| write32(®s->fbio_cfg5, param->EmcFbioCfg5); |
| write32(®s->rc, param->EmcRc); |
| write32(®s->rfc, param->EmcRfc); |
| write32(®s->rfc_slr, param->EmcRfcSlr); |
| write32(®s->ras, param->EmcRas); |
| write32(®s->rp, param->EmcRp); |
| write32(®s->r2r, param->EmcR2r); |
| write32(®s->w2w, param->EmcW2w); |
| write32(®s->r2w, param->EmcR2w); |
| write32(®s->w2r, param->EmcW2r); |
| write32(®s->r2p, param->EmcR2p); |
| write32(®s->w2p, param->EmcW2p); |
| write32(®s->rd_rcd, param->EmcRdRcd); |
| write32(®s->wr_rcd, param->EmcWrRcd); |
| write32(®s->rrd, param->EmcRrd); |
| write32(®s->rext, param->EmcRext); |
| write32(®s->wext, param->EmcWext); |
| write32(®s->wdv, param->EmcWdv); |
| write32(®s->wdv_mask, param->EmcWdvMask); |
| write32(®s->quse, param->EmcQUse); |
| write32(®s->quse_width, param->EmcQuseWidth); |
| write32(®s->ibdly, param->EmcIbdly); |
| write32(®s->einput, param->EmcEInput); |
| write32(®s->einput_duration, param->EmcEInputDuration); |
| write32(®s->puterm_extra, param->EmcPutermExtra); |
| write32(®s->puterm_width, param->EmcPutermWidth); |
| write32(®s->puterm_adj, param->EmcPutermAdj); |
| write32(®s->cdb_cntl_1, param->EmcCdbCntl1); |
| write32(®s->cdb_cntl_2, param->EmcCdbCntl2); |
| write32(®s->cdb_cntl_3, param->EmcCdbCntl3); |
| write32(®s->qrst, param->EmcQRst); |
| write32(®s->qsafe, param->EmcQSafe); |
| write32(®s->rdv, param->EmcRdv); |
| write32(®s->rdv_mask, param->EmcRdvMask); |
| write32(®s->qpop, param->EmcQpop); |
| write32(®s->ctt, param->EmcCtt); |
| write32(®s->ctt_duration, param->EmcCttDuration); |
| write32(®s->refresh, param->EmcRefresh); |
| write32(®s->burst_refresh_num, param->EmcBurstRefreshNum); |
| write32(®s->pre_refresh_req_cnt, param->EmcPreRefreshReqCnt); |
| write32(®s->pdex2wr, param->EmcPdEx2Wr); |
| write32(®s->pdex2rd, param->EmcPdEx2Rd); |
| write32(®s->pchg2pden, param->EmcPChg2Pden); |
| write32(®s->act2pden, param->EmcAct2Pden); |
| write32(®s->ar2pden, param->EmcAr2Pden); |
| write32(®s->rw2pden, param->EmcRw2Pden); |
| write32(®s->txsr, param->EmcTxsr); |
| write32(®s->txsrdll, param->EmcTxsrDll); |
| write32(®s->tcke, param->EmcTcke); |
| write32(®s->tckesr, param->EmcTckesr); |
| write32(®s->tpd, param->EmcTpd); |
| write32(®s->tfaw, param->EmcTfaw); |
| write32(®s->trpab, param->EmcTrpab); |
| write32(®s->tclkstable, param->EmcTClkStable); |
| write32(®s->tclkstop, param->EmcTClkStop); |
| write32(®s->trefbw, param->EmcTRefBw); |
| write32(®s->odt_write, param->EmcOdtWrite); |
| write32(®s->odt_read, param->EmcOdtRead); |
| write32(®s->fbio_cfg6, param->EmcFbioCfg6); |
| write32(®s->cfg_dig_dll, param->EmcCfgDigDll); |
| write32(®s->cfg_dig_dll_period, param->EmcCfgDigDllPeriod); |
| |
| /* Don't write bit 1: addr swizzle lock bit. Written at end of sequence. */ |
| write32(®s->fbio_spare, param->EmcFbioSpare & 0xfffffffd); |
| |
| write32(®s->cfg_rsv, param->EmcCfgRsv); |
| write32(®s->dll_xform_dqs0, param->EmcDllXformDqs0); |
| write32(®s->dll_xform_dqs1, param->EmcDllXformDqs1); |
| write32(®s->dll_xform_dqs2, param->EmcDllXformDqs2); |
| write32(®s->dll_xform_dqs3, param->EmcDllXformDqs3); |
| write32(®s->dll_xform_dqs4, param->EmcDllXformDqs4); |
| write32(®s->dll_xform_dqs5, param->EmcDllXformDqs5); |
| write32(®s->dll_xform_dqs6, param->EmcDllXformDqs6); |
| write32(®s->dll_xform_dqs7, param->EmcDllXformDqs7); |
| write32(®s->dll_xform_dqs8, param->EmcDllXformDqs8); |
| write32(®s->dll_xform_dqs9, param->EmcDllXformDqs9); |
| write32(®s->dll_xform_dqs10, param->EmcDllXformDqs10); |
| write32(®s->dll_xform_dqs11, param->EmcDllXformDqs11); |
| write32(®s->dll_xform_dqs12, param->EmcDllXformDqs12); |
| write32(®s->dll_xform_dqs13, param->EmcDllXformDqs13); |
| write32(®s->dll_xform_dqs14, param->EmcDllXformDqs14); |
| write32(®s->dll_xform_dqs15, param->EmcDllXformDqs15); |
| write32(®s->dll_xform_quse0, param->EmcDllXformQUse0); |
| write32(®s->dll_xform_quse1, param->EmcDllXformQUse1); |
| write32(®s->dll_xform_quse2, param->EmcDllXformQUse2); |
| write32(®s->dll_xform_quse3, param->EmcDllXformQUse3); |
| write32(®s->dll_xform_quse4, param->EmcDllXformQUse4); |
| write32(®s->dll_xform_quse5, param->EmcDllXformQUse5); |
| write32(®s->dll_xform_quse6, param->EmcDllXformQUse6); |
| write32(®s->dll_xform_quse7, param->EmcDllXformQUse7); |
| write32(®s->dll_xform_quse8, param->EmcDllXformQUse8); |
| write32(®s->dll_xform_quse9, param->EmcDllXformQUse9); |
| write32(®s->dll_xform_quse10, param->EmcDllXformQUse10); |
| write32(®s->dll_xform_quse11, param->EmcDllXformQUse11); |
| write32(®s->dll_xform_quse12, param->EmcDllXformQUse12); |
| write32(®s->dll_xform_quse13, param->EmcDllXformQUse13); |
| write32(®s->dll_xform_quse14, param->EmcDllXformQUse14); |
| write32(®s->dll_xform_quse15, param->EmcDllXformQUse15); |
| write32(®s->dll_xform_dq0, param->EmcDllXformDq0); |
| write32(®s->dll_xform_dq1, param->EmcDllXformDq1); |
| write32(®s->dll_xform_dq2, param->EmcDllXformDq2); |
| write32(®s->dll_xform_dq3, param->EmcDllXformDq3); |
| write32(®s->dll_xform_dq4, param->EmcDllXformDq4); |
| write32(®s->dll_xform_dq5, param->EmcDllXformDq5); |
| write32(®s->dll_xform_dq6, param->EmcDllXformDq6); |
| write32(®s->dll_xform_dq7, param->EmcDllXformDq7); |
| write32(®s->dll_xform_addr0, param->EmcDllXformAddr0); |
| write32(®s->dll_xform_addr1, param->EmcDllXformAddr1); |
| write32(®s->dll_xform_addr2, param->EmcDllXformAddr2); |
| write32(®s->dll_xform_addr3, param->EmcDllXformAddr3); |
| write32(®s->dll_xform_addr4, param->EmcDllXformAddr4); |
| write32(®s->dll_xform_addr5, param->EmcDllXformAddr5); |
| write32(®s->acpd_control, param->EmcAcpdControl); |
| write32(®s->dsr_vttgen_drv, param->EmcDsrVttgenDrv); |
| write32(®s->txdsrvttgen, param->EmcTxdsrvttgen); |
| write32(®s->bgbias_ctl0, param->EmcBgbiasCtl0); |
| |
| /* |
| * Set pipe bypass enable bits before sending any DRAM commands. |
| * Note other bits in EMC_CFG must be set AFTER REFCTRL is configured. |
| */ |
| writebits(param->EmcCfg, ®s->cfg, |
| (EMC_CFG_EMC2PMACRO_CFG_BYPASS_ADDRPIPE_MASK | |
| EMC_CFG_EMC2PMACRO_CFG_BYPASS_DATAPIPE1_MASK | |
| EMC_CFG_EMC2PMACRO_CFG_BYPASS_DATAPIPE2_MASK)); |
| } |
| |
| static void sdram_patch_bootrom(const struct sdram_params *param, |
| struct tegra_mc_regs *regs) |
| { |
| if (param->BootRomPatchControl & BOOT_ROM_PATCH_CONTROL_ENABLE_MASK) { |
| uintptr_t addr = ((param->BootRomPatchControl & |
| BOOT_ROM_PATCH_CONTROL_OFFSET_MASK) >> |
| BOOT_ROM_PATCH_CONTROL_OFFSET_SHIFT); |
| addr = BOOT_ROM_PATCH_CONTROL_BASE_ADDRESS + (addr << 2); |
| write32((uint32_t *)addr, param->BootRomPatchData); |
| write32(®s->timing_control, 1); |
| } |
| } |
| |
| static void sdram_set_dpd3(const struct sdram_params *param, |
| struct tegra_pmc_regs *regs) |
| { |
| /* Program DPD request */ |
| write32(®s->io_dpd3_req, param->PmcIoDpd3Req); |
| udelay(param->PmcIoDpd3ReqWait); |
| } |
| |
| static void sdram_set_dli_trims(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Program DLI trims */ |
| write32(®s->dli_trim_txdqs0, param->EmcDliTrimTxDqs0); |
| write32(®s->dli_trim_txdqs1, param->EmcDliTrimTxDqs1); |
| write32(®s->dli_trim_txdqs2, param->EmcDliTrimTxDqs2); |
| write32(®s->dli_trim_txdqs3, param->EmcDliTrimTxDqs3); |
| write32(®s->dli_trim_txdqs4, param->EmcDliTrimTxDqs4); |
| write32(®s->dli_trim_txdqs5, param->EmcDliTrimTxDqs5); |
| write32(®s->dli_trim_txdqs6, param->EmcDliTrimTxDqs6); |
| write32(®s->dli_trim_txdqs7, param->EmcDliTrimTxDqs7); |
| write32(®s->dli_trim_txdqs8, param->EmcDliTrimTxDqs8); |
| write32(®s->dli_trim_txdqs9, param->EmcDliTrimTxDqs9); |
| write32(®s->dli_trim_txdqs10, param->EmcDliTrimTxDqs10); |
| write32(®s->dli_trim_txdqs11, param->EmcDliTrimTxDqs11); |
| write32(®s->dli_trim_txdqs12, param->EmcDliTrimTxDqs12); |
| write32(®s->dli_trim_txdqs13, param->EmcDliTrimTxDqs13); |
| write32(®s->dli_trim_txdqs14, param->EmcDliTrimTxDqs14); |
| write32(®s->dli_trim_txdqs15, param->EmcDliTrimTxDqs15); |
| |
| write32(®s->ca_training_timing_cntl1, |
| param->EmcCaTrainingTimingCntl1); |
| write32(®s->ca_training_timing_cntl2, |
| param->EmcCaTrainingTimingCntl2); |
| |
| sdram_trigger_emc_timing_update(regs); |
| udelay(param->EmcTimingControlWait); |
| } |
| |
| static void sdram_set_clock_enable_signal(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| volatile uint32_t dummy = 0; |
| clrbits32(®s->pin, (EMC_PIN_RESET_MASK | EMC_PIN_DQM_MASK | |
| EMC_PIN_CKE_MASK)); |
| /* |
| * Assert dummy read of PIN register to ensure above write to PIN |
| * register went through. 200 is the recommended value by NVIDIA. |
| */ |
| dummy |= read32(®s->pin); |
| udelay(200 + param->EmcPinExtraWait); |
| |
| /* Deassert reset */ |
| setbits32(®s->pin, EMC_PIN_RESET_INACTIVE); |
| /* |
| * Assert dummy read of PIN register to ensure above write to PIN |
| * register went through. 200 is the recommended value by NVIDIA. |
| */ |
| dummy |= read32(®s->pin); |
| udelay(500 + param->EmcPinExtraWait); |
| |
| /* Enable clock enable signal */ |
| setbits32(®s->pin, EMC_PIN_CKE_NORMAL); |
| /* |
| * Assert dummy read of PIN register to ensure above write to PIN |
| * register went through. 200 is the recommended value by NVIDIA. |
| */ |
| dummy |= read32(®s->pin); |
| udelay(param->EmcPinProgramWait); |
| |
| if (!dummy) { |
| die("Failed to program EMC pin."); |
| } |
| |
| /* Send NOP (trigger) */ |
| writebits(((1 << EMC_NOP_NOP_CMD_SHIFT) | |
| (param->EmcDevSelect << EMC_NOP_NOP_DEV_SELECTN_SHIFT)), |
| ®s->nop, |
| EMC_NOP_NOP_CMD_MASK | EMC_NOP_NOP_DEV_SELECTN_MASK); |
| |
| /* Write mode registers */ |
| write32(®s->emrs2, param->EmcEmrs2); |
| write32(®s->emrs3, param->EmcEmrs3); |
| write32(®s->emrs, param->EmcEmrs); |
| write32(®s->mrs, param->EmcMrs); |
| |
| if (param->EmcExtraModeRegWriteEnable) { |
| write32(®s->mrs, param->EmcMrwExtra); |
| } |
| } |
| |
| static void sdram_init_zq_calibration(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| if ((param->EmcZcalWarmColdBootEnables & |
| EMC_ZCAL_WARM_COLD_BOOT_ENABLES_COLDBOOT_MASK) == 1) { |
| /* Need to initialize ZCAL on coldboot. */ |
| write32(®s->zq_cal, param->EmcZcalInitDev0); |
| udelay(param->EmcZcalInitWait); |
| |
| if ((param->EmcDevSelect & 2) == 0) { |
| write32(®s->zq_cal, param->EmcZcalInitDev1); |
| udelay(param->EmcZcalInitWait); |
| } |
| } else { |
| udelay(param->EmcZcalInitWait); |
| } |
| } |
| |
| static void sdram_set_zq_calibration(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Start periodic ZQ calibration */ |
| write32(®s->zcal_interval, param->EmcZcalInterval); |
| write32(®s->zcal_wait_cnt, param->EmcZcalWaitCnt); |
| write32(®s->zcal_mrw_cmd, param->EmcZcalMrwCmd); |
| } |
| |
| static void sdram_set_refresh(const struct sdram_params *param, |
| struct tegra_emc_regs *regs) |
| { |
| /* Insert burst refresh */ |
| if (param->EmcExtraRefreshNum > 0) { |
| uint32_t refresh_num = (1 << param->EmcExtraRefreshNum) - 1; |
| writebits((EMC_REF_CMD_REFRESH | EMC_REF_NORMAL_ENABLED | |
| (refresh_num << EMC_REF_NUM_SHIFT) | |
| (param->EmcDevSelect << EMC_REF_DEV_SELECTN_SHIFT)), |
| ®s->ref, (EMC_REF_CMD_MASK | EMC_REF_NORMAL_MASK | |
| EMC_REF_NUM_MASK | |
| EMC_REF_DEV_SELECTN_MASK)); |
| } |
| |
| /* Enable refresh */ |
| write32(®s->refctrl, |
| (param->EmcDevSelect | EMC_REFCTRL_REF_VALID_ENABLED)); |
| |
| write32(®s->dyn_self_ref_control, param->EmcDynSelfRefControl); |
| write32(®s->cfg, param->EmcCfg); |
| write32(®s->sel_dpd_ctrl, param->EmcSelDpdCtrl); |
| |
| /* Write addr swizzle lock bit */ |
| write32(®s->fbio_spare, param->EmcFbioSpare); |
| |
| /* Re-trigger timing to latch power saving functions */ |
| sdram_trigger_emc_timing_update(regs); |
| } |
| |
| static void sdram_enable_arbiter(const struct sdram_params *param) |
| { |
| /* TODO(hungte) Move values here to standalone header file. */ |
| uint32_t *AHB_ARBITRATION_XBAR_CTRL = (uint32_t*)(0x6000c000 + 0xe0); |
| setbits32(AHB_ARBITRATION_XBAR_CTRL, |
| param->AhbArbitrationXbarCtrlMemInitDone << 16); |
| } |
| |
| static void sdram_lock_carveouts(const struct sdram_params *param, |
| struct tegra_mc_regs *regs) |
| { |
| /* Lock carveouts, and emem_cfg registers */ |
| write32(®s->video_protect_reg_ctrl, |
| param->McVideoProtectWriteAccess); |
| write32(®s->emem_cfg_access_ctrl, |
| MC_EMEM_CFG_ACCESS_CTRL_WRITE_ACCESS_DISABLED); |
| write32(®s->sec_carveout_reg_ctrl, |
| param->McSecCarveoutProtectWriteAccess); |
| write32(®s->mts_carveout_reg_ctrl, param->McMtsCarveoutRegCtrl); |
| } |
| |
| void sdram_init(const struct sdram_params *param) |
| { |
| struct tegra_pmc_regs *pmc = (struct tegra_pmc_regs*)TEGRA_PMC_BASE; |
| struct tegra_mc_regs *mc = (struct tegra_mc_regs*)TEGRA_MC_BASE; |
| struct tegra_emc_regs *emc = (struct tegra_emc_regs*)TEGRA_EMC_BASE; |
| |
| printk(BIOS_DEBUG, "Initializing SDRAM of type %d with %dKHz\n", |
| param->MemoryType, clock_get_pll_input_khz() * |
| param->PllMFeedbackDivider / param->PllMInputDivider / |
| (1 + param->PllMSelectDiv2)); |
| if (param->MemoryType != NvBootMemoryType_Ddr3) |
| die("Unsupported memory type!\n"); |
| |
| sdram_configure_pmc(param, pmc); |
| sdram_patch(param->EmcBctSpare0, param->EmcBctSpare1); |
| |
| sdram_start_clocks(param); |
| sdram_patch(param->EmcBctSpare2, param->EmcBctSpare3); |
| |
| sdram_deassert_sel_dpd(param, pmc); |
| sdram_set_swizzle(param, emc); |
| sdram_set_pad_controls(param, emc); |
| sdram_patch(param->EmcBctSpare4, param->EmcBctSpare5); |
| |
| sdram_trigger_emc_timing_update(emc); |
| sdram_init_mc(param, mc); |
| sdram_init_emc(param, emc); |
| sdram_patch(param->EmcBctSpare6, param->EmcBctSpare7); |
| |
| sdram_set_emc_timing(param, emc); |
| sdram_patch_bootrom(param, mc); |
| sdram_set_dpd3(param, pmc); |
| sdram_set_dli_trims(param, emc); |
| sdram_deassert_clock_enable_signal(param, pmc); |
| sdram_set_clock_enable_signal(param, emc); |
| sdram_init_zq_calibration(param, emc); |
| sdram_patch(param->EmcBctSpare8, param->EmcBctSpare9); |
| |
| sdram_set_zq_calibration(param, emc); |
| sdram_patch(param->EmcBctSpare10, param->EmcBctSpare11); |
| |
| sdram_trigger_emc_timing_update(emc); |
| sdram_set_refresh(param, emc); |
| sdram_enable_arbiter(param); |
| sdram_lock_carveouts(param, mc); |
| |
| sdram_lp0_save_params(param); |
| } |
| |
| uint32_t sdram_get_ram_code(void) |
| { |
| struct tegra_pmc_regs *pmc = (struct tegra_pmc_regs*)TEGRA_PMC_BASE; |
| return ((read32(&pmc->strapping_opt_a) & |
| PMC_STRAPPING_OPT_A_RAM_CODE_MASK) >> |
| PMC_STRAPPING_OPT_A_RAM_CODE_SHIFT); |
| } |
| |
| /* returns total amount of DRAM (in MB) from memory controller registers */ |
| int sdram_size_mb(void) |
| { |
| struct tegra_mc_regs *mc = (struct tegra_mc_regs *)TEGRA_MC_BASE; |
| static int total_size = 0; |
| |
| if (total_size) |
| return total_size; |
| |
| /* |
| * This obtains memory size from the External Memory Aperture |
| * Configuration register. Nvidia confirmed that it is safe to assume |
| * this value represents the total physical DRAM size. |
| */ |
| total_size = (read32(&mc->emem_cfg) >> |
| MC_EMEM_CFG_SIZE_MB_SHIFT) & MC_EMEM_CFG_SIZE_MB_MASK; |
| |
| printk(BIOS_DEBUG, "%s: Total SDRAM (MB): %u\n", __func__, total_size); |
| return total_size; |
| } |
| |
| uintptr_t sdram_max_addressable_mb(void) |
| { |
| return MIN(((uintptr_t)_dram/MiB) + sdram_size_mb(), 4096); |
| } |