diff options
author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-05-24 02:02:42 +0300 |
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committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2018-05-31 03:45:19 +0000 |
commit | f99fa1058dc89fb4fc0c23f0217a0257fffdf9f9 (patch) | |
tree | 51b22089587d0a680507b7c976cfb382f36ec6e7 /src/northbridge/via/vx800/dev_init.c | |
parent | e99f0390b9b8e04b197b165e6e63826ce9631d35 (diff) |
Remove VIA VX800 northbridge support
Change-Id: Id6026e9d7ff064d54b0dd93e80dabdcc4efd2b8e
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/26679
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/northbridge/via/vx800/dev_init.c')
-rw-r--r-- | src/northbridge/via/vx800/dev_init.c | 942 |
1 files changed, 0 insertions, 942 deletions
diff --git a/src/northbridge/via/vx800/dev_init.c b/src/northbridge/via/vx800/dev_init.c deleted file mode 100644 index 1bc779f16a..0000000000 --- a/src/northbridge/via/vx800/dev_init.c +++ /dev/null @@ -1,942 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2009 One Laptop per Child, Association, 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. - */ - -void DRAMSetVRNum(DRAM_SYS_ATTR *DramAttr, u8 PhyRank /* physical rank */, - u8 VirRank /* virtual rank */, BOOLEAN Enable); -void SetEndingAddr(DRAM_SYS_ATTR *DramAttr, u8 VirRank /* Ending address - register number indicator (INDEX */, INT8 Value /* (value) - add or subtract value to this and after banks. */); -void InitDDR2CHA(DRAM_SYS_ATTR *DramAttr); -void InitDDR2CHB(DRAM_SYS_ATTR *DramAttr); -void InitDDR2CHC(DRAM_SYS_ATTR *DramAttr); - -CB_STATUS VerifyChc(void); - -/*=================================================================== -Function : DRAMRegInitValue() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard -Output : Void -Purpose : Set necessary register before DRAM initialize -===================================================================*/ - -static const u8 DramRegTbl[][3] = { - /* Reg AND OR */ - {0x50, 0x11, 0xEE}, // DDR default MA7 for DRAM init - {0x51, 0x11, 0x60}, // DDR default MA3 for CHB init - {0x52, 0x00, 0x33}, // DDR use BA0 = M17, BA1 = M18, - {0x53, 0x00, 0x3F}, // DDR BA2 = M19 - - {0x54, 0x00, 0x00}, // default PR0 = VR0; PR1 = VR1 - {0x55, 0x00, 0x00}, // default PR2 = VR2; PR3 = VR3 - {0x56, 0x00, 0x00}, // default PR4 = VR4; PR5 = VR5 - {0x57, 0x00, 0x00}, // default PR4 = VR4; PR5 = VR5 - - {0x60, 0x00, 0x00}, // disable fast turn-around - {0x65, 0x00, 0xD9}, // AGP timer = 0XD; Host timer = 8; - {0x66, 0x00, 0x88}, // DRAMC Queue Size = 4; park at the last bus - // owner,Priority promotion timer = 8 - {0x68, 0x00, 0x0C}, - {0x69, 0xF0, 0x04}, // set RX69[3:0]=0000b - {0x6A, 0x00, 0x00}, // refresh counter - {0x6E, 0xF8, 0x80}, // must set 6E[7], or else DDR2 probe test - // will fail - /* - * In here, we not set RX70~RX74, because we just init DRAM but no - * need R/W DRAM, when we check DQS input/output delay, then we need - * R/W DRAM. - */ - - {0x85, 0x00, 0x00}, - {0x40, 0x00, 0x00}, - - {0, 0, 0} -}; - -void DRAMRegInitValue(DRAM_SYS_ATTR *DramAttr) -{ - u8 Idx, CL, Data; - - for (Idx = 0; DramRegTbl[Idx][0] != 0; Idx++) { - Data = pci_read_config8(MEMCTRL, DramRegTbl[Idx][0]); - Data &= DramRegTbl[Idx][1]; - Data |= DramRegTbl[Idx][2]; - pci_write_config8(MEMCTRL, DramRegTbl[Idx][0], Data); - } - - Data = 0x80; - pci_write_config8(PCI_DEV(0, 0, 4), 0xa3, Data); - - // Set DRAM controller mode. */ - Data = pci_read_config8(MEMCTRL, 0x6c); - Data &= 0xFB; - if (ENABLE_CHC == 0) { - Data |= 0x4; /* Only CHA 64 bit mode */ - pci_write_config8(MEMCTRL, 0x6c, Data); - } else { - Data |= 0x0; /* CHA + CHC */ - pci_write_config8(MEMCTRL, 0x6c, Data); - - // set CHB DQSB input delay, or else will meet error which - // is some byte is right but another bit is error. - Data = pci_read_config8(MEMCTRL, 0xff); - Data = (Data & 0x03) | 0x3D; - pci_write_config8(MEMCTRL, 0xff, Data); - - // enable CHC RXDB[7] - - // rx62[2:0], CHA and CHB CL - Data = pci_read_config8(MEMCTRL, 0x62); - CL = Data & 0x07; - - // If CL = 6, so I set CHB CL = 5 default. - if (CL >= 4) - CL = 3; - - /* Set CHC Read CL rxDC[6:7]. */ - Data = pci_read_config8(MEMCTRL, 0xdc); - Data = (Data & 0x3F) | (CL << 6); - pci_write_config8(MEMCTRL, 0xdc, Data); - - /* Set CHC write CL rxDF[6:7]. */ - Data = pci_read_config8(MEMCTRL, 0xdf); - Data = (Data & 0x3F) | (CL << 6); - pci_write_config8(MEMCTRL, 0xdf, Data); - - /* Set CHC ODT RxDC[5:0] */ - Data = pci_read_config8(MEMCTRL, 0xdc); - Data = (Data & 0xC0) | 0x03; - pci_write_config8(MEMCTRL, 0xdc, Data); - - /* Set column type RXDD[6] and enable ODT PAD RXDD[7]. */ - Data = pci_read_config8(MEMCTRL, 0xdd); - Data |= 0x80; - Idx = DramAttr->DimmInfo[2].SPDDataBuf[SPD_SDRAM_COL_ADDR]; - if ((Idx & 0x0F) == 10) - Data |= 0x40; /* MA9~MA0 */ - else - Data &= 0xBF; /* MA8~MA0 */ - pci_write_config8(MEMCTRL, 0xdd, Data); - } - - // Disable Read DRAM fast ready ;Rx51[7] - // Disable Read Around Write ;Rx51[6] - - // Disable Consecutive Read ;RX52[1:0] - // Disable Speculative Read -} - -/*=================================================================== -Function : DRAMInitializeProc() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard -Output : Void -Purpose : DRAM initialize according to the bios porting guid -===================================================================*/ - -#define EXIST_TEST_PATTERN 0x55555555 -#define NOT_EXIST_TEST_PATTERN 0xAAAAAAAA - -static BOOLEAN ChkForExistLowBank(void) -{ - u32 *Address, data32; - - /* Check pattern */ - Address = (u32 *) 8; - *Address = EXIST_TEST_PATTERN; - Address = (u32 *) 4; - *Address = EXIST_TEST_PATTERN; - - // _asm {WBINVD} - WaitMicroSec(100); - Address = (u32 *) 8; - data32 = *Address; - if (data32 != EXIST_TEST_PATTERN) - return FALSE; - Address = (u32 *) 4; - data32 = *Address; - if (data32 != EXIST_TEST_PATTERN) - return FALSE; - - /* Check not Pattern */ - Address = (u32 *) 8; - *Address = NOT_EXIST_TEST_PATTERN; - Address = (u32 *) 4; - *Address = NOT_EXIST_TEST_PATTERN; - // _asm {WBINVD} - WaitMicroSec(100); - - Address = (u32 *) 8; - data32 = *Address; - if (data32 != (u32) (NOT_EXIST_TEST_PATTERN)) - return FALSE; - Address = (u32 *) 4; - data32 = *Address; - if (data32 != (u32) (NOT_EXIST_TEST_PATTERN)) - return FALSE; - - return TRUE; -} - -void DRAMInitializeProc(DRAM_SYS_ATTR *DramAttr) -{ - u8 shift, idx; - BOOLEAN Status; - - shift = 1; - for (idx = 0; idx < MAX_RANKS; idx++) { - if ((DramAttr->RankPresentMap & shift) != 0) { - /* - * Set VR# to physical rank indicated = PR + physical - * rank enable bit. - */ - DRAMSetVRNum(DramAttr, idx, idx, TRUE); - SetEndingAddr(DramAttr, idx, 0x10); /* Assume 1G size */ - if (idx < 4) /* CHA init */ - InitDDR2CHA(DramAttr); // temp wjb 2007/1 only for compiling - // in the function InitDDR2,the parameter is no need - Status = ChkForExistLowBank(); - if (Status == TRUE) { - PRINT_DEBUG_MEM(" S\r"); - } else { - PRINT_DEBUG_MEM(" F\r"); - } - - /* - * Set VR# to physical rank indicated = 00h + physical - * rank enable bit. - */ - DRAMSetVRNum(DramAttr, idx, 0, FALSE); - SetEndingAddr(DramAttr, idx, -16); - } - shift <<= 1; - } - if (ENABLE_CHC) - InitDDR2CHC(DramAttr); - -} - -/*=================================================================== -Function : DRAMSetVRNUM() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard - PhyRank: Physical Rank number - VirRank: Virtual Rank number - Enable: Enable/Disable Physical Rank -Output : Void -Purpose : Set virtual rank number for physical rank - Program the specific physical rank with specific virtual rank number - Program when necessary, otherwise don't touch the pr-vr-mapping registers -===================================================================*/ - -void DRAMSetVRNum(DRAM_SYS_ATTR *DramAttr, u8 PhyRank /* physical rank */, - u8 VirRank /* virtual rank */, BOOLEAN Enable) -{ - u8 Data, AndData, OrData; - - Data = pci_read_config8(MEMCTRL, (0x54 + (PhyRank >> 1))); - - OrData = 0; - if (Enable) - OrData |= 0x08; - OrData |= VirRank; - if ((PhyRank & 0x01) == 0x00) { - AndData = 0x0F; // keep the value of odd rank on PR # is even(keep 1,3,5,7) - OrData <<= 4; // VR #, value to be set - } else { - AndData = 0xF0; // keep the value of even rank on PR # is odd(keep 0,2,4,6) - } - - Data &= AndData; - Data |= OrData; - pci_write_config8(MEMCTRL, (0x54 + (PhyRank >> 1)), Data); -} - -/*=================================================================== -Function : SetEndingAddr() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard - VirRank: Virtual Rank number - Value: (value) add or subtract value to this and after banks -Output : Void -Purpose : Set ending address of virtual rank specified by VirRank -===================================================================*/ - -void SetEndingAddr(DRAM_SYS_ATTR *DramAttr, u8 VirRank /* ending address - register number indicator (INDEX */, INT8 Value /* (value) - add or subtract value to this and after banks */) { - u8 Data; - - /* Read register,Rx40-Rx47(0,1,2,3,4,5,6,7) and set ending address. */ - Data = pci_read_config8(MEMCTRL, 0x40 + VirRank); - Data = (u8) (Data + Value); - pci_write_config8(MEMCTRL, 0x40 + VirRank, Data); - - /* Program the virank's begining address to zero. */ - Data = 0x00; - pci_write_config8(MEMCTRL, 0x48 + VirRank, Data); -} - -/*=================================================================== -Function : InitDDR2() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard -Output : Void -Purpose : Initialize DDR2 by standard sequence -===================================================================*/ - -// DLL: Enable Reset -static const u32 CHA_MRS_DLL_150[2] = { 0x00020200, 0x00000800 }; // with 150 ohm (A17 = 1, A9 = 1), (A11 = 1)(cpu address) -static const u32 CHA_MRS_DLL_75[2] = { 0x00020020, 0x00000800 }; // with 75 ohm (A17 = 1, A5 = 1), (A11 = 1)(cpu address) - -// CPU(DRAM) -// { DLL: Enable. A17(BA0)=1 and A3(MA0)=0 } -// { DLL: reset. A11(MA8)=1 } -// -// DDR2 CL = 2 CL = 3 CL = 4 CL = 5 CL = 6(Burst type = interleave)(WR fine tune in code) -static const u16 CHA_DDR2_MRS_table[5] = { 0x0150, 0x01D0, 0x0250, 0x02D0, 0x350 }; // BL = 4; Use 1X-bandwidth MA table to init DRAM - -// MA11 MA10(AP) MA9 -#define CHA_MRS_DDR2_TWR2 (0 << 13) + (0 << 20) + (1 << 12) // Value = 001000h -#define CHA_MRS_DDR2_TWR3 (0 << 13) + (1 << 20) + (0 << 12) // Value = 100000h -#define CHA_MRS_DDR2_TWR4 (0 << 13) + (1 << 20) + (1 << 12) // Value = 101000h -#define CHA_MRS_DDR2_TWR5 (1 << 13) + (0 << 20) + (0 << 12) // Value = 002000h -#define CHA_MRS_DDR2_TWR6 (1 << 13) + (0 << 20) + (1 << 12) // Value = 003000h - -// DDR2 Twr = 2 Twr = 3 Twr = 4 Twr = 5 -static const u32 CHA_DDR2_Twr_table[5] = { - CHA_MRS_DDR2_TWR2, CHA_MRS_DDR2_TWR3, CHA_MRS_DDR2_TWR4, - CHA_MRS_DDR2_TWR5, CHA_MRS_DDR2_TWR6 -}; - -#define CHA_OCD_Exit_150ohm 0x20200 // EMRS(1), BA0 = 1, MA9 = MA8 = MA7 = 0,MA6 = 1,MA2 = 0 (DRAM bus address) -// A17 = 1, A12 = A11 = A10 = 0,A9 = 1 ,A5 = 0 (CPU address) -#define CHA_OCD_Default_150ohm 0x21E00 // EMRS(1), BA0 = 1, MA9 = MA8 = MA7 = 1,MA6 = 1,MA2 = 0 (DRAM bus address) -// A17 = 1, A12 = A11 = A10 = 1,A9 = 1 ,A5 = 0 (CPU address) -#define CHA_OCD_Exit_75ohm 0x20020 // EMRS(1), BA0 = 1, MA9 = MA8 = MA7 = 0,MA6 = 0,MA2 = 1 (DRAM bus address) -// A17 = 1, A12 = A11 = A10 = 0,A9 = 0 ,A5 = 1 (CPU address) -#define CHA_OCD_Default_75ohm 0x21C20 // EMRS(1), BA0 = 1, MA9 = MA8 = MA7 = 1,MA6 = 0,MA2 = 1 (DRAM bus address) -// A17 = 1, A12 = A11 = A10 = 1,A9 = 0 ,A5 = 1 (CPU address) - -void InitDDR2CHA(DRAM_SYS_ATTR *DramAttr) -{ - u8 Data, Reg6BVal, Idx, CL, BL, Twr, DimmNum; - u32 AccessAddr; - - /* Step 2 */ - /* Disable bank paging and multi page. */ - Data = pci_read_config8(MEMCTRL, 0x69); - Data &= ~0x03; - pci_write_config8(MEMCTRL, 0x69, Data); - - Reg6BVal = pci_read_config8(MEMCTRL, 0x6b); - Reg6BVal &= ~0x07; - - /* Step 3 */ - /* At least one NOP cycle will be issued after the 1m sec device - * deselect. - */ - Data = Reg6BVal | 0x01; - pci_write_config8(MEMCTRL, 0x6b, Data); - - /* Step 4 */ - /* Read a double word from any address of the DIMM. */ - DimmRead(0x0); - - /* Step 5 */ - /* - * A minimum pause of 200u sec will be provided after the NOP. - * - <<< reduce BOOT UP time >>> - - * Loop 200us - */ - for (Idx = 0; Idx < 0x10; Idx++) - WaitMicroSec(100); - - // Step 6. - // Precharge all (PALL) will be issued to the DDR. - Data = Reg6BVal | 0x02; - pci_write_config8(MEMCTRL, 0x6b, Data); - - // Step7. - // Read a double word from any address of the DIMM - DimmRead(0x0); - - // Step 8. - // MSR Eable will be issued to the DDR - Data = Reg6BVal | 0x03; - pci_write_config8(MEMCTRL, 0x6b, Data); - - /* Step 9, 10. - * - * Check ODT value for EMRS(1) command according to ODTLookUp_TBL - * in driving_setting.c if there is one DIMM in MB's one channel, - * the DDR2's ODT is 150ohm if there is two DIMM in MB's one channel, - * the DDR2's ODT is 75 ohm. - */ - DimmNum = DramAttr->DimmNumChA; - - if (DimmNum == 1) { /* DDR's ODT is 150ohm */ - AccessAddr = (u32) CHA_MRS_DLL_150[0]; - DimmRead(AccessAddr); /* Issue EMRS DLL Enable. */ - PRINT_DEBUG_MEM("Step 9 Address "); - PRINT_DEBUG_MEM_HEX32(AccessAddr); - PRINT_DEBUG_MEM("\r"); - - AccessAddr = (u32) CHA_MRS_DLL_150[1]; - DimmRead(AccessAddr); /* Issue MRS DLL Reset. */ - PRINT_DEBUG_MEM("Step 10 Address "); - PRINT_DEBUG_MEM_HEX32(AccessAddr); - PRINT_DEBUG_MEM("\r"); - } else if (DimmNum == 2) { /* DDR's ODT is 75ohm */ - AccessAddr = (u32) CHA_MRS_DLL_75[0]; - DimmRead(AccessAddr); /* Issue EMRS DLL Enable. */ - AccessAddr = (u32) CHA_MRS_DLL_75[1]; - DimmRead(AccessAddr); /* Issue MRS DLL Reset. */ - } else { - PRINT_DEBUG_MEM("Dimm NUM ERROR:"); - PRINT_DEBUG_MEM_HEX8(DimmNum); - PRINT_DEBUG_MEM("\r"); - } - - /* Step 11. Precharge all (PALL) will be issued to the DDR. */ - Data = Reg6BVal | 0x02; - pci_write_config8(MEMCTRL, 0x6b, Data); - - /* Step 12. Read a double word from any address of the DIMM. */ - DimmRead(0x0); - - /* Step 13. Execute 8 CBR refresh. */ - Data = Reg6BVal | 0x04; - pci_write_config8(MEMCTRL, 0x6b, Data); - - // issue 14,15 , 16 - //reads and wait 100us between each read - for (Idx = 0; Idx < 8; Idx++) { - DimmRead(0x0); - WaitMicroSec(100); - } - - /* Step 17. Enable MRS for MAA. */ - Data = Reg6BVal | 0x03; - pci_write_config8(MEMCTRL, 0x6b, Data); - - /* - * Step 18. The SDRAM parameters (Burst Length, CAS# Latency, - * Write recovery etc.) - */ - - /* Burst Length: really offset Rx6c[3] */ - Data = pci_read_config8(MEMCTRL, 0x6c); - BL = (Data & 0x08) >> 3; - - /* CL: really offset RX62[2:0] */ - Data = pci_read_config8(MEMCTRL, 0x62); - CL = Data & 0x03; - - AccessAddr = (u32) (CHA_DDR2_MRS_table[CL]); - if (BL) - AccessAddr += 8; - - /* Write recovery: really offset Rx63[7-5] */ - Data = pci_read_config8(MEMCTRL, 0x63); - Twr = (Data & 0xE0) >> 5; - - AccessAddr += CHA_DDR2_Twr_table[Twr]; - - DimmRead(AccessAddr); /* Set MRS command. */ - PRINT_DEBUG_MEM("Step 18 Address"); - PRINT_DEBUG_MEM_HEX32(AccessAddr); - PRINT_DEBUG_MEM("\r"); - - /* Step 19, 20 */ - if (DimmNum == 1) { /* DDR's ODT is 150ohm */ - AccessAddr = (u32) CHA_OCD_Default_150ohm; - DimmRead(AccessAddr); /* Issue EMRS OCD Default. */ - PRINT_DEBUG_MEM("Step 19 Address "); - PRINT_DEBUG_MEM_HEX32(AccessAddr); - PRINT_DEBUG_MEM("\r"); - - AccessAddr = (u32) CHA_OCD_Exit_150ohm; - DimmRead(AccessAddr); /* Issue EMRS OCD Calibration Mode Exit. */ - PRINT_DEBUG_MEM("Step 20 Address "); - PRINT_DEBUG_MEM_HEX32(AccessAddr); - PRINT_DEBUG_MEM("\r"); - } else if (DimmNum == 2) { /* DDR's ODT is 75ohm */ - AccessAddr = (u32) CHA_OCD_Default_75ohm; - DimmRead(AccessAddr); /* Issue EMRS OCD Default. */ - AccessAddr = (u32) CHA_OCD_Exit_75ohm; - DimmRead(AccessAddr); /* Issue EMRS OCD Calibration Mode Exit. */ - } else { - PRINT_DEBUG_MEM("Dimm NUM ERROR: "); - PRINT_DEBUG_MEM_HEX8(DimmNum); - PRINT_DEBUG_MEM("\r"); - } - - /* - * Step 21. After MRS the device should be ready for full - * functionality within 3 clocks after Tmrd is met. - */ - Data = Reg6BVal; - pci_write_config8(MEMCTRL, 0x6b, Data); - - /* Enable bank paging and multi page. */ - Data = pci_read_config8(MEMCTRL, 0x69); - Data |= 0x03; - pci_write_config8(MEMCTRL, 0x69, Data); -} - -/*=================================================================== -Function : InitDDR2CHC() -Precondition : -Input : - DramAttr: pointer point to DRAM_SYS_ATTR which consist the DDR and Dimm information - in MotherBoard -Output : Void -Purpose : Initialize DDR2 of CHC by standard sequence -Reference : -===================================================================*/ -// DDR2 CL = 2 CL = 3 CL = 4 CL = 5 (Burst type = interleave)(WR fine tune in code) -static const u16 CHC_MRS_table[4] = { 0x22B, 0x23B, 0x24B, 0x25B }; // Use 1X-bandwidth MA table to init DRAM - -void InitDDR2CHC(DRAM_SYS_ATTR *DramAttr) -{ - u8 Data, Idx, CL, Twr; - u32 AccessAddr; - CB_STATUS Status; - - /* Step 3. Clear RxDF[2] to disable Tri-state output. */ - Data = pci_read_config8(MEMCTRL, 0xdf); - Data &= 0xFB; - pci_write_config8(MEMCTRL, 0xdf, Data); - - /* - * Step 4. Enable the initialization mode of DRAM Controller C with - * NB's PLL clock. - */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x60; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 5. NOP command enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x00; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 6. Issue a nop cycle, RegDB[1] 0 -> 1. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* - * Step 7. - * A minimum pause of 200u sec will be provided after the NOP. - * - <<< reduce BOOT UP time >>> - - * Loop 200us - */ - for (Idx = 0; Idx < 0x10; Idx++) - WaitMicroSec(100); - - /* Step 8. Signal bank precharge command enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x14; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Set MA10 = 1, precharge all bank. */ - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x04; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* step 9. Issue a precharge all cycle, RegD3[7] 0 -> 1. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 10. MRS enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x1C; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 11. EMRS DLL enable and Disable DQS. */ - Data = 0x40; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x24; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Step 12. Issue EMRS cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 13. MSR enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x1C; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 14. MSR DLL Reset. */ - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x01; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Step 15. Issue MRS cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 16. Signal banks precharge command enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x14; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Set MA10 = 1, precharge all bank. */ - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x04; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Step 17. Issue precharge all cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Step 18. CBR cycle enable. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x18; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf9, Data); - - //step 19.20.21 - //repeat issue 8 CBR cycle, between each cycle stop 100us - for (Idx = 0; Idx < 8; Idx++) { - // issue CBR cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - WaitMicroSec(100); - } - - //the SDRAM parameters.(, CAS# Latency , Write recovery etc.) - //------------------------------------------------------------ - - // CL = really offset RXDC[7:6] - Data = pci_read_config8(MEMCTRL, 0xdc); - CL = (Data & 0xC0) >> 6; - - AccessAddr = (u32) (CHC_MRS_table[CL]); - - //Write recovery : really offset Rx63[7:5] - Data = pci_read_config8(MEMCTRL, 0x63); - Twr = (Data & 0xE0) >> 5; - - AccessAddr += Twr * 0x200; - - //step22. MSR enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x1C; - pci_write_config8(MEMCTRL, 0xdb, Data); - - //step 23. MSR command - Data = (u8) (AccessAddr & 0xFF); - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = (u8) ((AccessAddr & 0xFF00) >> 8); - pci_write_config8(MEMCTRL, 0xf9, Data); - - //step 24. issue MRS cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - //step 25. EMRS enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x1C; - pci_write_config8(MEMCTRL, 0xdb, Data); - - //step 26. OCD default - Data = 0xC0; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x27; - pci_write_config8(MEMCTRL, 0xf9, Data); - - //step 27. issue EMRS cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - //step 28. OCD Exit - Data = 0x40; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x24; - pci_write_config8(MEMCTRL, 0xf9, Data); - - //step 29. issue EMRS cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Status = VerifyChc(); - if (Status != CB_SUCCESS) - PRINT_DEBUG_MEM("Error!!!!CHC init error!\r"); - //step 31. exit the initialization mode - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0x9F; - pci_write_config8(MEMCTRL, 0xdb, Data); -} - -CB_STATUS VerifyChc(void) -{ - u8 Data, ByteVal, Index, pad; - u16 row; - - //first write the pad to all the address - - //the row bits is 13 and rank bit is 2, so the address bits is 15 and the value is 0x7fff - //verify each MA[0:12],BA[0:1] - pad = 1; - for (row = 0; row < 0x8000; row++) { - /* Set the write value, Verify each MD[15:0]. */ - for (Data = pad, Index = 0; Index < 16; Index++) { - Data <<= 1; - if (Data == 0) - Data = 1; - pci_write_config8(PCI_DEV(0, 0, 7), 0xC0 + Index, Data); - } - - /* Issue the bank active command. */ - // bank active command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x10; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = (u8) (row && 0xFF); - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = (u8) ((row && 0xFF) >> 8); - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Issue active cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Issue ready/completion for read/write. */ - // read/completion command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x04; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Issue read/completion cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Issue write command. */ - // write command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x0C; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = (u8) ((row & 0x60) << 5); - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Issue write cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - ////issue ready/completion for read/write - // read/completion command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x04; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Issue read/completion cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Issue the bank active command. */ - // bank active command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x10; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = (u8) (row && 0xFF); - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = (u8) ((row && 0xFF) >> 8); - pci_write_config8(MEMCTRL, 0xf9, Data); - - // issue active cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - ////issue ready/completion for read/write - // read/completion command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x04; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf9, Data); - - // issue read/completion cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - ////issue read command - // read/completion command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x08; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = (u8) ((row & 0x60) << 5); - pci_write_config8(MEMCTRL, 0xf9, Data); - - // issue read cycle - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - ////issue ready/completion for read/write - // read/completion command enable - Data = pci_read_config8(MEMCTRL, 0xdb); - Data &= 0xE3; - Data |= 0x04; - pci_write_config8(MEMCTRL, 0xdb, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf8, Data); - - Data = 0x00; - pci_write_config8(MEMCTRL, 0xf9, Data); - - /* Issue read/completion cycle. */ - Data = pci_read_config8(MEMCTRL, 0xdb); - Data |= 0x2; - pci_write_config8(MEMCTRL, 0xdb, Data); - Data &= 0xFD; - pci_write_config8(MEMCTRL, 0xdb, Data); - - /* Verify the value. */ - for (ByteVal = pad, Index = 0; Index < 16; Index++) { - Data = pci_read_config8(PCI_DEV(0, 0, 7), 0xD0 + Index); - if (ByteVal != Data) { - PRINT_DEBUG_MEM("Error! row = %x, index =%x, " - "data = %x, byteval=%x\r"); - } - ByteVal <<= 1; - if (ByteVal == 0) - ByteVal = 1; - } - pad <<= 1; - if (pad == 0) - pad = 1; - } - - return CB_SUCCESS; -} |