| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
| * Copyright (C) 2007-2008 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* Call-backs */ |
| #include <delay.h> |
| |
| #define NVRAM_DDR2_800 0 |
| #define NVRAM_DDR2_667 1 |
| #define NVRAM_DDR2_533 2 |
| #define NVRAM_DDR2_400 3 |
| |
| #define NVRAM_DDR3_1600 0 |
| #define NVRAM_DDR3_1333 1 |
| #define NVRAM_DDR3_1066 2 |
| #define NVRAM_DDR3_800 3 |
| |
| /* The recommended maximum GFX Upper Memory Area |
| * size is 256M, however, to be on the safe side |
| * move TOM down by 512M. |
| */ |
| #define MAXIMUM_GFXUMA_SIZE 0x20000000 |
| |
| /* Do not allow less than 16M of DRAM in 32-bit space. |
| * This number is not hardware constrained and can be |
| * changed as needed. |
| */ |
| #define MINIMUM_DRAM_BELOW_4G 0x1000000 |
| |
| static const uint16_t ddr2_limits[4] = {400, 333, 266, 200}; |
| static const uint16_t ddr3_limits[16] = {933, 800, 666, 533, 400, 333, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| |
| static u16 mctGet_NVbits(u8 index) |
| { |
| u16 val = 0; |
| int nvram; |
| |
| switch (index) { |
| case NV_PACK_TYPE: |
| #if CONFIG_CPU_SOCKET_TYPE == 0x10 /* Socket F */ |
| val = 0; |
| #elif CONFIG_CPU_SOCKET_TYPE == 0x11 /* AM3 */ |
| val = 1; |
| #elif CONFIG_CPU_SOCKET_TYPE == 0x13 /* ASB2 */ |
| val = 4; |
| #elif CONFIG_CPU_SOCKET_TYPE == 0x14 /* C32 */ |
| val = 5; |
| #elif CONFIG_CPU_SOCKET_TYPE == 0x15 /* G34 */ |
| val = 3; |
| #elif CONFIG_CPU_SOCKET_TYPE == 0x16 /* FM2 */ |
| val = 6; |
| //#elif SYSTEM_TYPE == MOBILE |
| // val = 2; |
| #endif |
| break; |
| case NV_MAX_NODES: |
| val = MAX_NODES_SUPPORTED; |
| break; |
| case NV_MAX_DIMMS: |
| val = MAX_DIMMS_SUPPORTED; |
| //val = 8; |
| break; |
| case NV_MAX_DIMMS_PER_CH: |
| /* FIXME |
| * Mainboards need to be able to specify the maximum number of DIMMs installable per channel |
| * For now assume a maximum of 2 DIMMs per channel can be installed |
| */ |
| val = 2; |
| break; |
| case NV_MAX_MEMCLK: |
| /* Maximum platform supported memclk */ |
| val = MEM_MAX_LOAD_FREQ; |
| |
| if (get_option(&nvram, "max_mem_clock") == CB_SUCCESS) { |
| int limit = val; |
| if (IS_ENABLED(CONFIG_DIMM_DDR3)) |
| limit = ddr3_limits[nvram & 0xf]; |
| else if (IS_ENABLED(CONFIG_DIMM_DDR2)) |
| limit = ddr2_limits[nvram & 0x3]; |
| val = min(limit, val); |
| } |
| break; |
| case NV_MIN_MEMCLK: |
| /* Minimum platform supported memclk */ |
| if (is_fam15h()) |
| val = MEM_MIN_PLATFORM_FREQ_FAM15; |
| else |
| val = MEM_MIN_PLATFORM_FREQ_FAM10; |
| break; |
| case NV_ECC_CAP: |
| #if SYSTEM_TYPE == SERVER |
| val = 1; /* memory bus ECC capable */ |
| #else |
| val = 0; /* memory bus ECC not capable */ |
| #endif |
| break; |
| case NV_4RANKType: |
| /* Quad Rank DIMM slot type */ |
| val = 0; /* normal */ |
| //val = 1; /* R4 (registered DIMMs in AMD server configuration) */ |
| //val = 2; /* S4 (Unbuffered SO-DIMMS) */ |
| break; |
| case NV_BYPMAX: |
| #if !CONFIG_GFXUMA |
| val = 4; |
| #elif CONFIG_GFXUMA |
| val = 7; |
| #endif |
| break; |
| case NV_RDWRQBYP: |
| #if !CONFIG_GFXUMA |
| val = 2; |
| #elif CONFIG_GFXUMA |
| val = 3; |
| #endif |
| break; |
| case NV_MCTUSRTMGMODE: |
| val = 0; /* Automatic (recommended) */ |
| //val = 1; /* Limited */ |
| //val = 2; /* Manual */ |
| break; |
| case NV_MemCkVal: |
| //val = 0; /* 200MHz */ |
| //val = 1; /* 266MHz */ |
| val = 2; /* 333MHz */ |
| break; |
| case NV_BankIntlv: |
| /* Bank (chip select) interleaving */ |
| //val = 0; /* disabled */ |
| val = 1; /* enabled (recommended) */ |
| |
| if (get_option(&nvram, "interleave_chip_selects") == CB_SUCCESS) |
| val = !!nvram; |
| break; |
| case NV_MemHole: |
| //val = 0; /* Disabled */ |
| val = 1; /* Enabled (recommended) */ |
| break; |
| case NV_AllMemClks: |
| val = 0; /* Normal (only to slots that have enabled DIMMs) */ |
| //val = 1; /* Enable all memclocks */ |
| break; |
| case NV_SPDCHK_RESTRT: |
| val = 0; /* Exit current node initialization if any DIMM has SPD checksum error */ |
| //val = 1; /* Ignore faulty SPD checksum (DIMM will still be disabled), continue current node intialization */ |
| //val = 2; /* Override faulty SPD checksum (DIMM will be enabled), continue current node intialization */ |
| |
| if (get_option(&nvram, "dimm_spd_checksum") == CB_SUCCESS) |
| val = nvram & 0x3; |
| |
| if (val > 2) |
| val = 2; |
| |
| break; |
| case NV_DQSTrainCTL: |
| //val = 0; /*Skip dqs training */ |
| val = 1; /* Perform dqs training */ |
| break; |
| case NV_NodeIntlv: |
| val = 0; /* Disabled (recommended) */ |
| //val = 1; /* Enable */ |
| |
| if (get_option(&nvram, "interleave_nodes") == CB_SUCCESS) |
| val = !!nvram; |
| break; |
| case NV_BurstLen32: |
| #if !CONFIG_GFXUMA |
| val = 0; /* 64 byte mode */ |
| #elif CONFIG_GFXUMA |
| val = 1; /* 32 byte mode */ |
| #endif |
| break; |
| case NV_CKE_PDEN: |
| //val = 0; /* Disable */ |
| val = 1; /* Enable */ |
| break; |
| case NV_CKE_CTL: |
| val = 0; /* per channel control */ |
| //val = 1; /* per chip select control */ |
| break; |
| case NV_CLKHZAltVidC3: |
| val = 0; /* disable */ |
| //val = 1; /* enable */ |
| break; |
| case NV_BottomIO: |
| case NV_BottomUMA: |
| /* address bits [31:24] */ |
| #if !CONFIG_GFXUMA |
| val = (CONFIG_MMCONF_BASE_ADDRESS >> 24); |
| #elif CONFIG_GFXUMA |
| #if (CONFIG_MMCONF_BASE_ADDRESS < (MAXIMUM_GFXUMA_SIZE + MINIMUM_DRAM_BELOW_4G)) |
| #error "MMCONF_BASE_ADDRESS is too small" |
| #endif |
| val = ((CONFIG_MMCONF_BASE_ADDRESS - MAXIMUM_GFXUMA_SIZE) >> 24); |
| #endif |
| break; |
| case NV_ECC: |
| #if (SYSTEM_TYPE == SERVER) |
| val = 1; /* Enable */ |
| #else |
| val = 0; /* Disable */ |
| #endif |
| |
| if (get_option(&nvram, "ECC_memory") == CB_SUCCESS) |
| val = !!nvram; |
| break; |
| case NV_NBECC: |
| #if (SYSTEM_TYPE == SERVER) |
| val = 1; /* Enable */ |
| #else |
| val = 0; /* Disable */ |
| #endif |
| break; |
| case NV_ChipKill: |
| #if (SYSTEM_TYPE == SERVER) |
| val = 1; /* Enable */ |
| #else |
| val = 0; /* Disable */ |
| #endif |
| break; |
| case NV_ECCRedir: |
| /* |
| * 0: Disable |
| * 1: Enable |
| */ |
| val = 0; |
| |
| if (get_option(&nvram, "ECC_redirection") == CB_SUCCESS) |
| val = !!nvram; |
| break; |
| case NV_DramBKScrub: |
| /* |
| * 0x00: Disabled |
| * 0x01: 40ns |
| * 0x02: 80ns |
| * 0x03: 160ns |
| * 0x04: 320ns |
| * 0x05: 640ns |
| * 0x06: 1.28us |
| * 0x07: 2.56us |
| * 0x08: 5.12us |
| * 0x09: 10.2us |
| * 0x0a: 20.5us |
| * 0x0b: 41us |
| * 0x0c: 81.9us |
| * 0x0d: 163.8us |
| * 0x0e: 327.7us |
| * 0x0f: 655.4us |
| * 0x10: 1.31ms |
| * 0x11: 2.62ms |
| * 0x12: 5.24ms |
| * 0x13: 10.49ms |
| * 0x14: 20.97sms |
| * 0x15: 42ms |
| * 0x16: 84ms |
| */ |
| val = 0; |
| |
| if ((get_option(&nvram, "ecc_scrub_rate") == CB_SUCCESS) && (nvram <= 0x16)) |
| val = nvram; |
| break; |
| case NV_L2BKScrub: |
| val = 0; /* Disabled - See L2Scrub in BKDG */ |
| break; |
| case NV_L3BKScrub: |
| val = 0; /* Disabled - See L3Scrub in BKDG */ |
| break; |
| case NV_DCBKScrub: |
| val = 0; /* Disabled - See DcacheScrub in BKDG */ |
| break; |
| case NV_CS_SpareCTL: |
| val = 0; /* Disabled */ |
| //val = 1; /* Enabled */ |
| break; |
| case NV_SyncOnUnEccEn: |
| val = 0; /* Disabled */ |
| //val = 1; /* Enabled */ |
| break; |
| case NV_Unganged: |
| /* channel interleave is better performance than ganged mode at this time */ |
| val = 1; /* Enabled */ |
| //val = 0; /* Disabled */ |
| |
| if (get_option(&nvram, "interleave_memory_channels") == CB_SUCCESS) |
| val = !!nvram; |
| break; |
| case NV_ChannelIntlv: |
| val = 5; /* Not currently checked in mctchi_d.c */ |
| /* Bit 0 = 0 - Disable |
| * 1 - Enable |
| * Bits[2:1] = 00b - Address bits 6 |
| * 01b - Address bits 1 |
| * 10b - Hash*, XOR of address bits [20:16, 6] |
| * 11b - Hash*, XOR of address bits [20:16, 9] |
| */ |
| break; |
| } |
| |
| return val; |
| } |
| |
| |
| static void mctHookAfterDIMMpre(void) |
| { |
| } |
| |
| |
| static void mctGet_MaxLoadFreq(struct DCTStatStruc *pDCTstat) |
| { |
| pDCTstat->PresetmaxFreq = mctGet_NVbits(NV_MAX_MEMCLK); |
| |
| /* Determine the number of installed DIMMs */ |
| int ch1_count = 0; |
| int ch2_count = 0; |
| uint8_t ch1_registered = 0; |
| uint8_t ch2_registered = 0; |
| uint8_t ch1_voltage = 0; |
| uint8_t ch2_voltage = 0; |
| uint8_t highest_rank_count[2]; |
| int i; |
| for (i = 0; i < 15; i = i + 2) { |
| if (pDCTstat->DIMMValid & (1 << i)) |
| ch1_count++; |
| if (pDCTstat->DIMMValid & (1 << (i + 1))) |
| ch2_count++; |
| } |
| for (i = 0; i < MAX_DIMMS_SUPPORTED; i = i + 2) { |
| if (pDCTstat->DimmRegistered[i]) |
| ch1_registered = 1; |
| if (pDCTstat->DimmRegistered[i + 1]) |
| ch2_registered = 1; |
| } |
| if (IS_ENABLED(CONFIG_DEBUG_RAM_SETUP)) { |
| printk(BIOS_DEBUG, "mctGet_MaxLoadFreq: Channel 1: %d DIMM(s) detected\n", ch1_count); |
| printk(BIOS_DEBUG, "mctGet_MaxLoadFreq: Channel 2: %d DIMM(s) detected\n", ch2_count); |
| } |
| |
| #if (CONFIG_DIMM_SUPPORT & 0x000F) == 0x0005 /* AMD_FAM10_DDR3 */ |
| uint8_t dimm; |
| |
| for (i = 0; i < MAX_DIMMS_SUPPORTED; i = i + 2) { |
| if (pDCTstat->DIMMValid & (1 << i)) |
| ch1_voltage |= pDCTstat->DimmConfiguredVoltage[i]; |
| if (pDCTstat->DIMMValid & (1 << (i + 1))) |
| ch2_voltage |= pDCTstat->DimmConfiguredVoltage[i + 1]; |
| } |
| |
| for (i = 0; i < 2; i++) { |
| highest_rank_count[i] = 0x0; |
| for (dimm = 0; dimm < MAX_DIMMS_SUPPORTED; dimm++) { |
| if (pDCTstat->DimmRanks[dimm] > highest_rank_count[i]) |
| highest_rank_count[i] = pDCTstat->DimmRanks[dimm]; |
| } |
| } |
| #endif |
| |
| /* Set limits if needed */ |
| pDCTstat->PresetmaxFreq = mct_MaxLoadFreq(max(ch1_count, ch2_count), max(highest_rank_count[0], highest_rank_count[1]), (ch1_registered || ch2_registered), (ch1_voltage | ch2_voltage), pDCTstat->PresetmaxFreq); |
| } |
| |
| #ifdef UNUSED_CODE |
| static void mctAdjustAutoCycTmg(void) |
| { |
| } |
| #endif |
| |
| |
| static void mctAdjustAutoCycTmg_D(void) |
| { |
| } |
| |
| |
| static void mctHookAfterAutoCycTmg(void) |
| { |
| } |
| |
| |
| static void mctGetCS_ExcludeMap(void) |
| { |
| } |
| |
| |
| static void mctHookAfterAutoCfg(void) |
| { |
| } |
| |
| |
| static void mctHookAfterPSCfg(void) |
| { |
| } |
| |
| |
| static void mctHookAfterHTMap(void) |
| { |
| } |
| |
| |
| static void mctHookAfterCPU(void) |
| { |
| } |
| |
| |
| #if IS_ENABLED(CONFIG_DIMM_DDR2) |
| static void mctSaveDQSSigTmg_D(void) |
| { |
| } |
| #endif |
| |
| |
| #if IS_ENABLED(CONFIG_DIMM_DDR2) |
| static void mctGetDQSSigTmg_D(void) |
| { |
| } |
| #endif |
| |
| |
| static void mctHookBeforeECC(void) |
| { |
| } |
| |
| |
| static void mctHookAfterECC(void) |
| { |
| } |
| |
| #ifdef UNUSED_CODE |
| static void mctInitMemGPIOs_A(void) |
| { |
| } |
| #endif |
| |
| |
| static void mctInitMemGPIOs_A_D(void) |
| { |
| } |
| |
| |
| static void mctNodeIDDebugPort_D(void) |
| { |
| } |
| |
| |
| #ifdef UNUSED_CODE |
| static void mctWarmReset(void) |
| { |
| } |
| #endif |
| |
| |
| static void mctWarmReset_D(void) |
| { |
| } |
| |
| |
| static void mctHookBeforeDramInit(void) |
| { |
| } |
| |
| |
| static void mctHookAfterDramInit(void) |
| { |
| } |
| |
| #if (CONFIG_DIMM_SUPPORT & 0x000F) == 0x0005 /* AMD_FAM10_DDR3 */ |
| static void vErratum372(struct DCTStatStruc *pDCTstat) |
| { |
| msr_t msr = rdmsr(NB_CFG_MSR); |
| |
| int nbPstate1supported = !(msr.hi & (1 << (NB_GfxNbPstateDis -32))); |
| |
| // is this the right way to check for NB pstate 1 or DDR3-1333 ? |
| if (((pDCTstat->PresetmaxFreq == 1333)||(nbPstate1supported)) |
| && (!pDCTstat->GangedMode)) { |
| /* DisableCf8ExtCfg */ |
| msr.hi &= ~(3 << (51 - 32)); |
| wrmsr(NB_CFG_MSR, msr); |
| } |
| } |
| |
| static void vErratum414(struct DCTStatStruc *pDCTstat) |
| { |
| int dct = 0; |
| for (; dct < 2 ; dct++) { |
| int dRAMConfigHi = Get_NB32(pDCTstat->dev_dct,0x94 + (0x100 * dct)); |
| int powerDown = dRAMConfigHi & (1 << PowerDownEn); |
| int ddr3 = dRAMConfigHi & (1 << Ddr3Mode); |
| int dRAMMRS = Get_NB32(pDCTstat->dev_dct,0x84 + (0x100 * dct)); |
| int pchgPDModeSel = dRAMMRS & (1 << PchgPDModeSel); |
| if (powerDown && ddr3 && pchgPDModeSel) |
| Set_NB32(pDCTstat->dev_dct,0x84 + (0x100 * dct), dRAMMRS & ~(1 << PchgPDModeSel)); |
| } |
| } |
| #endif |
| |
| |
| static void mctHookBeforeAnyTraining(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA) |
| { |
| #if (CONFIG_DIMM_SUPPORT & 0x000F) == 0x0005 /* AMD_FAM10_DDR3 */ |
| /* FIXME : as of 25.6.2010 errata 350 and 372 should apply to ((RB|BL|DA)-C[23])|(HY-D[01])|(PH-E0) but I don't find constants for all of them */ |
| if (pDCTstatA->LogicalCPUID & (AMD_DRBH_Cx | AMD_DR_Dx)) { |
| vErratum372(pDCTstatA); |
| vErratum414(pDCTstatA); |
| } |
| #endif |
| } |
| |
| #if (CONFIG_DIMM_SUPPORT & 0x000F) == 0x0005 /* AMD_FAM10_DDR3 */ |
| static u32 mct_AdjustSPDTimings(struct MCTStatStruc *pMCTstat, struct DCTStatStruc *pDCTstatA, u32 val) |
| { |
| if (pDCTstatA->LogicalCPUID & AMD_DR_Bx) { |
| if (pDCTstatA->Status & (1 << SB_Registered)) { |
| val ++; |
| } |
| } |
| return val; |
| } |
| #endif |
| |
| static void mctHookAfterAnyTraining(void) |
| { |
| } |
| |
| static uint64_t mctGetLogicalCPUID_D(u8 node) |
| { |
| return mctGetLogicalCPUID(node); |
| } |
| |
| #if (CONFIG_DIMM_SUPPORT & 0x000F)!=0x0005 /* not needed for AMD_FAM10_DDR3 */ |
| static u8 mctSetNodeBoundary_D(void) |
| { |
| return 0; |
| } |
| #endif |