/* * This file is part of the coreboot project. * * Copyright (C) 2007-2009 coresystems GmbH * * 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include "cx700_registers.h" /* Debugging macros. */ #if CONFIG_DEBUG_RAM_SETUP #define PRINTK_DEBUG(x...) printk(BIOS_DEBUG, x) #else #define PRINTK_DEBUG(x...) #endif #define RAM_COMMAND_NORMAL 0x0 #define RAM_COMMAND_NOP 0x1 #define RAM_COMMAND_PRECHARGE 0x2 #define RAM_COMMAND_MRS 0x3 #define RAM_COMMAND_CBR 0x4 #define HOSTCTRL PCI_DEV(0, 0, 2) #define MEMCTRL PCI_DEV(0, 0, 3) #define DDRII_666 0x5 #define DDRII_533 0x4 #define DDRII_400 0x3 #define DDRII_333 0x2 #define DDRII_266 0x1 #define DDRII_200 0x0 #define OHM_150 1 #ifdef MEM_WIDTH_32BIT_MODE #define SDRAM1X_RA_14 30 #define SDRAM1X_RA_13 29 #define SDRAM1X_RA_12 28 #define SDRAM1X_RA_12_8bk 26 #define SDRAM1X_CA_12 15 #define SDRAM1X_CA_11 14 #define SDRAM1X_CA_09 11 #define SDRAM1X_CA_09_8bk 11 #define SDRAM1X_BA1 13 #define SDRAM1X_BA2_8bk 14 #define SDRAM1X_BA1_8bk 13 #else #define SDRAM1X_RA_14 31 #define SDRAM1X_RA_13 30 #define SDRAM1X_RA_12 29 #define SDRAM1X_RA_12_8bk 27 #define SDRAM1X_CA_12 16 #define SDRAM1X_CA_11 15 #define SDRAM1X_CA_09 12 #define SDRAM1X_CA_09_8bk 12 #define SDRAM1X_BA1 14 #define SDRAM1X_BA2_8bk 15 #define SDRAM1X_BA1_8bk 14 #endif #define MA_Column 0x06 #define MA_Bank 0x08 #define MA_Row 0x30 #define MA_4_Bank 0x00 #define MA_8_Bank 0x08 #define MA_12_Row 0x00 #define MA_13_Row 0x10 #define MA_14_Row 0x20 #define MA_15_Row 0x30 #define MA_9_Column 0x00 #define MA_10_Column 0x02 #define MA_11_Column 0x04 #define MA_12_Column 0x06 #define GET_SPD(i, val, tmp, reg) \ do{ \ val = 0; \ tmp = 0; \ for(i = 0; i < 2; i++) { \ if(pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_REG_BASE + (i << 1)))) { \ tmp = get_spd_data(ctrl, i, reg); \ if(tmp > val) \ val = tmp; \ } \ } \ } while ( 0 ) #define REGISTERPRESET(bus,dev,fun,bdfspec) \ { u8 j, reg; \ for (j=0; j<(sizeof((bdfspec))/sizeof(struct regmask)); j++) { \ printk(BIOS_DEBUG, "Writing bus " #bus " dev " #dev " fun " #fun " register "); \ printk(BIOS_DEBUG, "%02x", (bdfspec)[j].reg); \ printk(BIOS_DEBUG, "\n"); \ reg = pci_read_config8(PCI_DEV((bus), (dev), (fun)), (bdfspec)[j].reg); \ reg &= (bdfspec)[j].mask; \ reg |= (bdfspec)[j].val; \ pci_write_config8(PCI_DEV((bus), (dev), (fun)), (bdfspec)[j].reg, reg); \ } \ } static void do_ram_command(const struct mem_controller *ctrl, u8 command) { u8 reg; reg = pci_read_config8(MEMCTRL, 0x6b); reg &= 0xf8; /* Clear bits 2-0. */ reg |= command; pci_write_config8(MEMCTRL, 0x6b, reg); PRINTK_DEBUG(" Sending RAM command 0x%02x\n", reg); } // TODO factor out to another file static void c7_cpu_setup(const struct mem_controller *ctrl) { u8 size, i; size = sizeof(Reg_Val) / sizeof(Reg_Val[0]); for (i = 0; i < size; i += 2) pci_write_config8(HOSTCTRL, Reg_Val[i], Reg_Val[i + 1]); } static void ddr_detect(const struct mem_controller *ctrl) { /* FIXME: Only supports 2 ranks per DIMM */ u8 val, rsize, dimm; u8 nrank = 0; u8 ndimm = 0; u8 rmap = 0; for (dimm = 0; dimm < DIMM_SOCKETS; dimm++) { val = get_spd_data(ctrl, dimm, 0); if ((val == 0x80) || (val == 0xff)) { ndimm++; rsize = get_spd_data(ctrl, dimm, SPD_RANK_SIZE); /* unit is 128M */ rsize = (rsize << 3) | (rsize >> 5); val = get_spd_data(ctrl, dimm, SPD_MOD_ATTRIB_RANK) & SPD_MOD_ATTRIB_RANK_NUM_MASK; switch (val) { case 1: pci_write_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_1 + (dimm << 1)), rsize); rmap |= (1 << ((dimm << 1) + 1)); nrank++; case 0: pci_write_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + (dimm << 1)), rsize); rmap |= (1 << (dimm << 1)); nrank++; } } } pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_DIMM_NUM, ndimm); pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM, nrank); pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_MAP, rmap); } static void sdram_set_safe_values(const struct mem_controller *ctrl) { /* The purpose of this function is to set initial values for the dram * size and timings. It will be replaced with the SPD based function * once the RAM commands are working with these values. */ u8 regs, val, t, dimm; u32 spds, tmp; regs = pci_read_config8(MEMCTRL, 0x6c); if (regs & (1 << 6)) printk(BIOS_DEBUG, "DDR2 Detected.\n"); else die("ERROR: DDR1 memory detected but not supported by coreboot.\n"); /* Enable DDR2 */ regs |= (1 << 7); pci_write_config8(MEMCTRL, 0x6c, regs); /* SPD 5 # of ranks */ pci_write_config8(MEMCTRL, 0x6d, 0xc0); /**********************************************/ /* Set DRAM Freq (DDR2 533) */ /**********************************************/ /* SPD 9 SDRAM Cycle Time */ GET_SPD(dimm, spds, regs, 9); printk(BIOS_DEBUG, "\nDDRII "); if (spds <= 0x3d) { printk(BIOS_DEBUG, "533"); val = DDRII_533; t = 38; } else if (spds <= 0x50) { printk(BIOS_DEBUG, "400"); val = DDRII_400; t = 50; } else if (spds <= 0x60) { printk(BIOS_DEBUG, "333"); val = DDRII_333; t = 60; } else if (spds <= 0x75) { printk(BIOS_DEBUG, "266"); val = DDRII_266; t = 75; } else { printk(BIOS_DEBUG, "200"); val = DDRII_200; t = 100; } /* To store DDRII frequence */ pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ, val); /* Manual reset and adjust DLL when DRAM change frequency * This is a necessary sequence. */ udelay(2000); regs = pci_read_config8(MEMCTRL, 0x90); regs |= 0x7; pci_write_config8(MEMCTRL, 0x90, regs); udelay(2000); regs = pci_read_config8(MEMCTRL, 0x90); regs &= ~0x7; regs |= val; pci_write_config8(MEMCTRL, 0x90, regs); udelay(2000); regs = pci_read_config8(MEMCTRL, 0x6b); regs |= 0xc0; regs &= ~0x10; pci_write_config8(MEMCTRL, 0x6b, regs); udelay(1); regs |= 0x10; pci_write_config8(MEMCTRL, 0x6b, regs); udelay(1); regs &= ~0xc0; pci_write_config8(MEMCTRL, 0x6b, regs); regs = pci_read_config8(MEMCTRL, 0x6f); regs |= 0x1; pci_write_config8(MEMCTRL, 0x6f, regs); /**********************************************/ /* Set DRAM Timing Setting (DDR2 533) */ /**********************************************/ /* SPD 9 18 23 25 CAS Latency NB3DRAM_REG62[2:0] */ /* Read SPD byte 18 CAS Latency */ GET_SPD(dimm, spds, regs, SPD_CAS_LAT); printk(BIOS_DEBUG, "\nCAS Supported "); if (spds & SPD_CAS_LAT_2) printk(BIOS_DEBUG, "2 "); if (spds & SPD_CAS_LAT_3) printk(BIOS_DEBUG, "3 "); if (spds & SPD_CAS_LAT_4) printk(BIOS_DEBUG, "4 "); if (spds & SPD_CAS_LAT_5) printk(BIOS_DEBUG, "5 "); if (spds & SPD_CAS_LAT_6) printk(BIOS_DEBUG, "6"); /* We don't consider CAS = 6, because CX700 doesn't support it */ printk(BIOS_DEBUG, "\n CAS:"); if (spds & SPD_CAS_LAT_5) { printk(BIOS_DEBUG, "Starting at CL5"); val = 0x3; /* See whether we can improve it */ GET_SPD(dimm, tmp, regs, SPD_CAS_LAT_MIN_X_1); if ((spds & SPD_CAS_LAT_4) && (tmp < 0x50)) { printk(BIOS_DEBUG, "\n... going to CL4"); val = 0x2; } GET_SPD(dimm, tmp, regs, SPD_CAS_LAT_MIN_X_2); if ((spds & SPD_CAS_LAT_3) && (tmp < 0x50)) { printk(BIOS_DEBUG, "\n... going to CL3"); val = 0x1; } } else { printk(BIOS_DEBUG, "Starting at CL4"); val = 0x2; GET_SPD(dimm, tmp, regs, SPD_CAS_LAT_MIN_X_1); if ((spds & SPD_CAS_LAT_3) && (tmp < 0x50)) { printk(BIOS_DEBUG, "\n... going to CL3"); val = 0x1; } GET_SPD(dimm, tmp, regs, SPD_CAS_LAT_MIN_X_2); if ((spds & SPD_CAS_LAT_2) && (tmp < 0x50)) { printk(BIOS_DEBUG, "\n... going to CL2"); val = 0x0; } } regs = pci_read_config8(MEMCTRL, 0x62); regs &= ~0x7; regs |= val; pci_write_config8(MEMCTRL, 0x62, regs); /* SPD 27 Trp NB3DRAM_REG64[3:2] */ GET_SPD(dimm, spds, regs, SPD_TRP); printk(BIOS_DEBUG, "\nTrp %d", spds); spds >>= 2; for (val = 2; val <= 5; val++) { if (spds <= (val * t / 10)) { val = val - 2; break; } } val <<= 2; regs = pci_read_config8(MEMCTRL, 0x64); regs &= ~0xc; regs |= val; pci_write_config8(MEMCTRL, 0x64, regs); /* SPD 29 Trcd NB3DRAM_REG64[7:6] */ GET_SPD(dimm, spds, regs, SPD_TRCD); printk(BIOS_DEBUG, "\nTrcd %d", spds); spds >>= 2; for (val = 2; val <= 5; val++) { if (spds <= (val * t / 10)) { val = val - 2; break; } } val <<= 6; regs = pci_read_config8(MEMCTRL, 0x64); regs &= ~0xc0; regs |= val; pci_write_config8(MEMCTRL, 0x64, regs); /* SPD 30 Tras NB3DRAM_REG62[7:4] */ GET_SPD(dimm, spds, regs, SPD_TRAS); printk(BIOS_DEBUG, "\nTras %d", spds); for (val = 5; val <= 20; val++) { if (spds <= (val * t / 10)) { val = val - 5; break; } } val <<= 4; regs = pci_read_config8(MEMCTRL, 0x62); regs &= ~0xf0; regs |= val; pci_write_config8(MEMCTRL, 0x62, regs); /* SPD 42 SPD 40 Trfc NB3DRAM_REG61[5:0] */ GET_SPD(dimm, spds, regs, SPD_TRFC); printk(BIOS_DEBUG, "\nTrfc %d", spds); tmp = spds; GET_SPD(dimm, spds, regs, SPD_EX_TRC_TRFC); if (spds & 0x1) tmp += 256; if (spds & 0xe) tmp++; for (val = 8; val <= 71; val++) { if (tmp <= (val * t / 10)) { val = val - 8; break; } } regs = pci_read_config8(MEMCTRL, 0x61); regs &= ~0x3f; regs |= val; pci_write_config8(MEMCTRL, 0x61, regs); /* SPD 28 Trrd NB3DRAM_REG63[7:6] */ GET_SPD(dimm, spds, regs, SPD_TRRD); for (val = 2; val <= 5; val++) { if (spds <= (val * t / 10)) { val = val - 2; break; } } val <<= 6; printk(BIOS_DEBUG, "\nTrrd val = 0x%x", val); regs = pci_read_config8(MEMCTRL, 0x63); regs &= ~0xc0; regs |= val; pci_write_config8(MEMCTRL, 0x63, regs); /* SPD 36 Twr NB3DRAM_REG61[7:6] */ GET_SPD(dimm, spds, regs, SPD_TWR); for (val = 2; val <= 5; val++) { if (spds <= (val * t / 10)) { val = val - 2; break; } } val <<= 6; printk(BIOS_DEBUG, "\nTwr val = 0x%x", val); regs = pci_read_config8(MEMCTRL, 0x61); regs &= ~0xc0; regs |= val; pci_write_config8(MEMCTRL, 0x61, regs); /* SPD 37 Twtr NB3DRAM_REG63[1] */ GET_SPD(dimm, spds, regs, SPD_TWTR); spds >>= 2; printk(BIOS_DEBUG, "\nTwtr 0x%x", spds); if (spds <= (t * 2 / 10)) val = 0; else val = 1; val <<= 1; printk(BIOS_DEBUG, "\nTwtr val = 0x%x", val); regs = pci_read_config8(MEMCTRL, 0x63); regs &= ~0x2; regs |= val; pci_write_config8(MEMCTRL, 0x63, regs); /* SPD 38 Trtp NB3DRAM_REG63[3] */ GET_SPD(dimm, spds, regs, SPD_TRTP); spds >>= 2; printk(BIOS_DEBUG, "\nTrtp 0x%x", spds); if (spds <= (t * 2 / 10)) val = 0; else val = 1; val <<= 3; printk(BIOS_DEBUG, "\nTrtp val = 0x%x", val); regs = pci_read_config8(MEMCTRL, 0x63); regs &= ~0x8; regs |= val; pci_write_config8(MEMCTRL, 0x63, regs); /**********************************************/ /* Set DRAM DRDY Setting */ /**********************************************/ /* Write slowest value to register */ tmp = sizeof(Host_Reg_Val) / sizeof(Host_Reg_Val[0]); for (val = 0; val < tmp; val += 2) pci_write_config8(HOSTCTRL, Host_Reg_Val[val], Host_Reg_Val[val + 1]); /* F2_RX51[7]=0, disable DRDY timing */ regs = pci_read_config8(HOSTCTRL, 0x51); regs &= ~0x80; pci_write_config8(HOSTCTRL, 0x51, regs); /**********************************************/ /* Set DRAM BurstLength */ /**********************************************/ regs = pci_read_config8(MEMCTRL, 0x6c); for (dimm = 0; dimm < DIMM_SOCKETS; dimm++) { if (pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_REG_BASE + (dimm << 1)))) { spds = get_spd_data(ctrl, dimm, 16); if (!(spds & 0x8)) break; } } if (dimm == 2) regs |= 0x8; pci_write_config8(MEMCTRL, 0x6c, regs); val = pci_read_config8(HOSTCTRL, 0x54); val &= ~0x10; if (dimm == 2) val |= 0x10; pci_write_config8(HOSTCTRL, 0x54, val); /**********************************************/ /* Set DRAM Driving Setting */ /**********************************************/ /* DRAM Timing ODT */ tmp = sizeof(Dram_Driving_ODT_CTRL) / sizeof(Dram_Driving_ODT_CTRL[0]); for (val = 0; val < tmp; val += 2) pci_write_config8(MEMCTRL, Dram_Driving_ODT_CTRL[val], Dram_Driving_ODT_CTRL[val + 1]); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM); val = pci_read_config8(MEMCTRL, 0xd5); val &= ~0xaa; switch (regs) { case 3: case 2: val |= 0xa0; break; default: val |= 0x80; } regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DIMM_NUM); if (regs == 1) val |= 0xa; pci_write_config8(MEMCTRL, 0xd5, val); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DIMM_NUM); val = pci_read_config8(MEMCTRL, 0xd6); val &= ~0x2; if (regs == 1) val |= 0x2; pci_write_config8(MEMCTRL, 0xd6, val); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_MAP); tmp = sizeof(ODT_TBL) / sizeof(ODT_TBL[0]); for (val = 0; val < tmp; val += 3) { if (regs == ODT_TBL[val]) { pci_write_config8(MEMCTRL, 0xd8, ODT_TBL[val + 1]); /* Store DRAM & NB ODT setting in d0f4_Rxd8 */ pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_NB_ODT, ODT_TBL[val + 2]); break; } } pci_write_config8(MEMCTRL, 0xd9, 0x0a); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM); regs--; regs = regs << 1; pci_write_config8(MEMCTRL, 0xe0, DQS_DQ_TBL[regs++]); pci_write_config8(MEMCTRL, 0xe2, DQS_DQ_TBL[regs]); /* DRAM Timing CS */ pci_write_config8(MEMCTRL, 0xe4, 0x66); /* DRAM Timing MAA */ val = 0; for (dimm = 0; dimm < DIMM_SOCKETS; dimm++) { if (pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_REG_BASE + (dimm << 1)))) { spds = get_spd_data(ctrl, dimm, SPD_PRI_WIDTH); spds = 64 / spds; if (pci_read_config8 (PCI_DEV(0, 0, 4), (SCRATCH_REG_BASE + (dimm << 1) + 1))) spds = spds << 1; val += spds; } } printk(BIOS_DEBUG, "\nchip #%d", val); if (val > 18) regs = 0xdb; else regs = 0x86; pci_write_config8(MEMCTRL, 0xe8, regs); /* DRAM Timing MAB */ pci_write_config8(MEMCTRL, 0xe9, 0x0); /* DRAM Timing DCLK VT8454C always 0x66 */ pci_write_config8(MEMCTRL, 0xe6, 0xaa); /**********************************************/ /* Set DRAM Duty Control */ /**********************************************/ regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM); switch (regs) { case 1: case 2: /* 1~2 rank */ val = 0; break; case 3: case 4: /* 3~4 rank */ regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ); if (regs == DDRII_533) val = 4; else /* DDRII-400 */ val = 0; break; } regs = 0xec; for (t = 0; t < 4; t++) { pci_write_config8(MEMCTRL, regs, Duty_Control_DDR2[val]); regs++; val++; } /**********************************************/ /* Set DRAM Clock Control */ /**********************************************/ /* Write Data Phase */ val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ); regs = pci_read_config8(MEMCTRL, 0x75); regs &= 0xf0; switch (val) { case DDRII_533: pci_write_config8(MEMCTRL, 0x74, 0x07); regs |= 0x7; break; case DDRII_400: default: pci_write_config8(MEMCTRL, 0x74, 0x05); regs |= 0x5; break; } pci_write_config8(MEMCTRL, 0x75, regs); pci_write_config8(MEMCTRL, 0x76, 0x80); /* Clock Phase Control for FeedBack Mode */ regs = pci_read_config8(MEMCTRL, 0x90); // regs |= 0x80; pci_write_config8(MEMCTRL, 0x90, regs); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ); switch (regs) { case DDRII_533: regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM); if (regs == 1) val = 0; else val = 3; break; case DDRII_400: default: val = 6; break; } regs = pci_read_config8(MEMCTRL, 0x91); regs &= ~0xc0; regs |= 0x80; pci_write_config8(MEMCTRL, 0x91, regs); regs = 0x91; for (t = 0; t < 3; t++) { dimm = pci_read_config8(MEMCTRL, regs); dimm &= ~0x7; dimm |= ChA_Clk_Phase_DDR2_Table[val]; pci_write_config8(MEMCTRL, regs, dimm); regs++; val++; } pci_write_config8(MEMCTRL, 0x97, 0x12); pci_write_config8(MEMCTRL, 0x98, 0x33); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_0); val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_2); if (regs && val) pci_write_config8(MEMCTRL, 0x9d, 0x00); else pci_write_config8(MEMCTRL, 0x9d, 0x0f); tmp = sizeof(DQ_DQS_Table) / sizeof(DQ_DQS_Table[0]); for (val = 0; val < tmp; val += 2) pci_write_config8(MEMCTRL, DQ_DQS_Table[val], DQ_DQS_Table[val + 1]); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ); if (regs == DDRII_533) pci_write_config8(MEMCTRL, 0x7b, 0xa0); else pci_write_config8(MEMCTRL, 0x7b, 0x10); /***************************************************/ /* Set necessary register before DRAM initialize */ /***************************************************/ tmp = sizeof(Mem_Reg_Init) / sizeof(Mem_Reg_Init[0]); for (val = 0; val < tmp; val += 3) { regs = pci_read_config8(MEMCTRL, Mem_Reg_Init[val]); regs &= Mem_Reg_Init[val + 1]; regs |= Mem_Reg_Init[val + 2]; pci_write_config8(MEMCTRL, Mem_Reg_Init[val], regs); } regs = pci_read_config8(HOSTCTRL, 0x51); regs &= 0xbf; // Clear bit 6 Disable Read Around Write pci_write_config8(HOSTCTRL, 0x51, regs); regs = pci_read_config8(HOSTCTRL, 0x54); t = regs >> 5; val = pci_read_config8(HOSTCTRL, 0x57); dimm = val >> 5; if (t == dimm) t = 0x0; else t = 0x1; regs &= ~0x1; regs |= t; val &= ~0x1; val |= t; pci_write_config8(HOSTCTRL, 0x57, val); regs = pci_read_config8(HOSTCTRL, 0x51); regs |= t; pci_write_config8(HOSTCTRL, 0x51, regs); regs = pci_read_config8(MEMCTRL, 0x90); regs &= 0x7; val = 0; if (regs < 0x2) val = 0x80; regs = pci_read_config8(MEMCTRL, 0x76); regs &= 0x80; regs |= val; pci_write_config8(MEMCTRL, 0x76, regs); regs = pci_read_config8(MEMCTRL, 0x6f); regs |= 0x10; pci_write_config8(MEMCTRL, 0x6f, regs); /***************************************************/ /* Find suitable DQS value for ChA and ChB */ /***************************************************/ // Set DQS output delay for Channel A regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_FREQ); val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_NUM); switch (regs) { case DDRII_533: if (val < 2) val = 0; else val = 2; break; case DDRII_400: default: if (val < 2) val = 4; else val = 6; break; } for (t = 0; t < 2; t++) pci_write_config8(MEMCTRL, (0x70 + t), DQSOChA_DDR2_Driving_Table[val + t]); // Set DQS output delay for Channel B pci_write_config8(MEMCTRL, 0x72, 0x0); regs = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_0); val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_RANK_2); if (regs && val) pci_write_config8(MEMCTRL, 0x73, 0xfd); else pci_write_config8(MEMCTRL, 0x73, 0x01); } static void sdram_set_registers(const struct mem_controller *ctrl) { c7_cpu_setup(ctrl); ddr_detect(ctrl); sdram_set_safe_values(ctrl); } static void step_20_21(const struct mem_controller *ctrl) { u8 val; // Step 20 udelay(200); val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_NB_ODT); if (val & DDR2_ODT_150ohm) read32(0x102200); else read32(0x102020); /* Step 21. Normal operation */ print_spew("RAM Enable 5: Normal operation\n"); do_ram_command(ctrl, RAM_COMMAND_NORMAL); udelay(3); } static void step_2_19(const struct mem_controller *ctrl) { u32 i; u8 val; // Step 2 val = pci_read_config8(MEMCTRL, 0x69); val &= ~0x03; pci_write_config8(MEMCTRL, 0x69, val); /* Step 3 Apply NOP. */ print_spew("RAM Enable 1: Apply NOP\n"); do_ram_command(ctrl, RAM_COMMAND_NOP); udelay(15); // Step 4 print_spew("SEND: "); read32(0); print_spew("OK\n"); // Step 5 udelay(400); /* 6. Precharge all. Wait tRP. */ print_spew("RAM Enable 2: Precharge all\n"); do_ram_command(ctrl, RAM_COMMAND_PRECHARGE); // Step 7 print_spew("SEND: "); read32(0); print_spew("OK\n"); /* Step 8. Mode register set. */ print_spew("RAM Enable 4: Mode register set\n"); do_ram_command(ctrl, RAM_COMMAND_MRS); //enable dll // Step 9 print_spew("SEND: "); val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_NB_ODT); if (val & DDR2_ODT_150ohm) read32(0x102200); //DDR2_ODT_150ohm else read32(0x102020); print_spew("OK\n"); // Step 10 print_spew("SEND: "); read32(0x800); print_spew("OK\n"); /* Step 11. Precharge all. Wait tRP. */ print_spew("RAM Enable 2: Precharge all\n"); do_ram_command(ctrl, RAM_COMMAND_PRECHARGE); // Step 12 print_spew("SEND: "); read32(0x0); print_spew("OK\n"); /* Step 13. Perform 8 refresh cycles. Wait tRC each time. */ print_spew("RAM Enable 3: CBR\n"); do_ram_command(ctrl, RAM_COMMAND_CBR); /* JEDEC says only twice, do 8 times for posterity */ // Step 16: Repeat Step 14 and 15 another 7 times for (i = 0; i < 8; i++) { // Step 14 read32(0); print_spew("."); // Step 15 udelay(100); } /* Step 17. Mode register set. Wait 200us. */ print_spew("\nRAM Enable 4: Mode register set\n"); //safe value for now, BL=8, WR=4, CAS=4 do_ram_command(ctrl, RAM_COMMAND_MRS); udelay(200); /* Use Single Chanel temporarily */ val = pci_read_config8(MEMCTRL, 0x6c); if (val & 0x8) { /* Burst Length = 8 */ val = pci_read_config8(MEMCTRL, 0x62); val &= 0x7; i = DDR2_MRS_table[4 + val]; } else { val = pci_read_config8(MEMCTRL, 0x62); val &= 0x7; i = DDR2_MRS_table[val]; } // Step 18 val = pci_read_config8(MEMCTRL, 0x61); val = val >> 6; i |= DDR2_Twr_table[val]; read32(i); printk(BIOS_DEBUG, "MRS = %08x\n", i); udelay(15); // Step 19 val = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_NB_ODT); if (val & DDR2_ODT_150ohm) read32(0x103e00); //EMRS OCD Default else read32(0x103c20); } static void sdram_set_vr(const struct mem_controller *ctrl, u8 num) { u8 reg, val; val = 0x54 + (num >> 1); reg = pci_read_config8(MEMCTRL, val); reg &= (0xf << (4 * (num & 0x1))); reg |= (((0x8 | num) << 4) >> (4 * (num & 0x1))); pci_write_config8(MEMCTRL, val, reg); } static void sdram_ending_addr(const struct mem_controller *ctrl, u8 num) { u8 reg, val; /* Set Ending Address */ val = 0x40 + num; reg = pci_read_config8(MEMCTRL, val); reg += 0x10; pci_write_config8(MEMCTRL, val, reg); /* Set Beginning Address */ val = 0x48 + num; pci_write_config8(MEMCTRL, val, 0x0); } static void sdram_clear_vr_addr(const struct mem_controller *ctrl, u8 num) { u8 reg, val; val = 0x54 + (num >> 1); reg = pci_read_config8(MEMCTRL, val); reg = ~(0x80 >> (4 * (num & 0x1))); pci_write_config8(MEMCTRL, val, reg); val = 0x40 + num; reg = pci_read_config8(MEMCTRL, val); reg -= 0x10; pci_write_config8(MEMCTRL, val, reg); val = 0x48 + num; pci_write_config8(MEMCTRL, val, 0x0); } /* Perform sizing DRAM by dynamic method */ static void sdram_calc_size(const struct mem_controller *ctrl, u8 num) { u8 ca, ra, ba, reg; ba = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_FLAGS); if (ba == 8) { write8(0, 0x0d); ra = read8(0); write8((1 << SDRAM1X_RA_12_8bk), 0x0c); ra = read8(0); write8(0, 0x0a); ca = read8(0); write8((1 << SDRAM1X_CA_09_8bk), 0x0c); ca = read8(0); write8(0, 0x03); ba = read8(0); write8((1 << SDRAM1X_BA2_8bk), 0x02); ba = read8(0); write8((1 << SDRAM1X_BA1_8bk), 0x01); ba = read8(0); } else { write8(0, 0x0f); ra = read8(0); write8((1 << SDRAM1X_RA_14), 0x0e); ra = read8(0); write8((1 << SDRAM1X_RA_13), 0x0d); ra = read8(0); write8((1 << SDRAM1X_RA_12), 0x0c); ra = read8(0); write8(0, 0x0c); ca = read8(0); write8((1 << SDRAM1X_CA_12), 0x0b); ca = read8(0); write8((1 << SDRAM1X_CA_11), 0x0a); ca = read8(0); write8((1 << SDRAM1X_CA_09), 0x09); ca = read8(0); write8(0, 0x02); ba = read8(0); write8((1 << SDRAM1X_BA1), 0x01); ba = read8(0); } if (ra < 10 || ra > 15) die("bad RA"); if (ca < 8 || ca > 12) die("bad CA"); if (ba < 1 || ba > 3) die("bad BA"); /* Calculate MA type save to scratch register */ reg = 0; switch (ra) { case 12: reg |= MA_12_Row; break; case 13: reg |= MA_13_Row; break; case 14: reg |= MA_14_Row; break; default: reg |= MA_15_Row; } switch (ca) { case 9: reg |= MA_9_Column; break; case 10: reg |= MA_10_Column; break; case 11: reg |= MA_11_Column; break; default: reg |= MA_12_Column; } switch (ba) { case 3: reg |= MA_8_Bank; break; default: reg |= MA_4_Bank; } pci_write_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK0_MA_REG + num), reg); if (ra >= 13) pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_256M_BIT, 1); /* Calculate rank size save to scratch register */ ra = ra + ca + ba + 3 - 26; /* 1 unit = 64M */ ra = 1 << ra; pci_write_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK0_SIZE_REG + num), ra); } static void sdram_enable(const struct mem_controller *ctrl) { u8 reg8; u8 val, i; device_t dev; u8 dl, dh; u32 quot; /* Init Present Bank */ val = sizeof(Init_Rank_Reg_Table) / sizeof(Init_Rank_Reg_Table[0]); for (i = 0; i < val; i++) pci_write_config8(MEMCTRL, Init_Rank_Reg_Table[i], 0x0); /* Init other banks */ for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { sdram_set_vr(ctrl, i); sdram_ending_addr(ctrl, i); step_2_19(ctrl); step_20_21(ctrl); sdram_clear_vr_addr(ctrl, i); } } #ifdef MEM_WIDTH_32BIT_MODE /****************************************************************/ /* Set Dram 32bit Mode */ /****************************************************************/ reg8 = pci_read_config8(MEMCTRL, 0x6c); reg8 |= 0x20; pci_write_config(MEMCTRL, 0x6c, reg8); #endif /****************************************************************/ /* Find the DQSI Low/High bound and save it to Scratch register */ /****************************************************************/ for (dl = 0; dl < 0x3f; dl += 2) { reg8 = dl & 0x3f; reg8 |= 0x80; /* Set Manual Mode */ pci_write_config8(MEMCTRL, 0x77, reg8); for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { sdram_set_vr(ctrl, i); sdram_ending_addr(ctrl, i); write32(0, 0x55555555); write32(4, 0x55555555); udelay(15); if (read32(0) != 0x55555555) break; if (read32(4) != 0x55555555) break; write32(0, 0xaaaaaaaa); write32(4, 0xaaaaaaaa); udelay(15); if (read32(0) != 0xaaaaaaaa) break; if (read32(4) != 0xaaaaaaaa) break; sdram_clear_vr_addr(ctrl, i); } } if (i == 4) break; else sdram_clear_vr_addr(ctrl, i); } printk(BIOS_DEBUG, "\nDQSI Low %08x", dl); for (dh = dl; dh < 0x3f; dh += 2) { reg8 = dh & 0x3f; reg8 |= 0x80; /* Set Manual Mode */ pci_write_config8(MEMCTRL, 0x77, reg8); for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { sdram_set_vr(ctrl, i); sdram_ending_addr(ctrl, i); write32(0, 0x55555555); write32(4, 0x55555555); udelay(15); if (read32(0) != 0x55555555) break; if (read32(4) != 0x55555555) break; write32(0, 0xaaaaaaaa); write32(4, 0xaaaaaaaa); udelay(15); if (read32(0) != 0xaaaaaaaa) break; if (read32(4) != 0xaaaaaaaa) break; sdram_clear_vr_addr(ctrl, i); } } if (i != 4) { sdram_clear_vr_addr(ctrl, i); break; } } printk(BIOS_DEBUG, "\nDQSI High %02x", dh); pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_CHA_DQSI_LOW_REG, dl); pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_CHA_DQSI_HIGH_REG, dh); reg8 = pci_read_config8(MEMCTRL, 0X90) & 0X7; val = DQSI_Rate_Table[reg8]; quot = dh - dl; quot = quot * val; quot >>= 4; val = quot + dl; pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_ChA_DQSI_REG, val); reg8 = val & 0x3f; reg8 |= 0x80; pci_write_config8(MEMCTRL, 0x77, reg8); /****************************************************************/ /* Find out the lowest Bank Interleave and Set Register */ /****************************************************************/ #if 0 //TODO reg8 = pci_read_config8(MEMCTRL, 0x69); reg8 &= ~0xc0; reg8 |= 0x80; //8 banks pci_write_config8(MEMCTRL, 0x69, reg8); #endif dl = 2; for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { reg8 = get_spd_data(ctrl, (i >> 1), 17); sdram_set_vr(ctrl, i); sdram_ending_addr(ctrl, i); if (reg8 == 4) { write8(0, 0x02); val = read8(0); write8((1 << SDRAM1X_BA1), 0x01); val = read8(0); } else { write8(0, 0x03); val = read8(0); write8((1 << SDRAM1X_BA2_8bk), 0x02); val = read8(0); write8((1 << SDRAM1X_BA1_8bk), 0x01); val = read8(0); } if (val < dl) dl = val; sdram_clear_vr_addr(ctrl, i); } } dl <<= 6; reg8 = pci_read_config8(MEMCTRL, 0x69); reg8 &= ~0xc0; reg8 |= dl; pci_write_config8(MEMCTRL, 0x69, reg8); /****************************************************************/ /* DRAM Sizing and Fill MA type */ /****************************************************************/ for (i = 0; i < 4; i++) { val = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (val) { reg8 = get_spd_data(ctrl, (i >> 1), 17); pci_write_config8(PCI_DEV(0, 0, 4), SCRATCH_FLAGS, reg8); if (reg8 == 4) { /* Use MA Type 3 for DRAM sizing */ reg8 = pci_read_config8(MEMCTRL, 0x50); reg8 &= 0x11; reg8 |= 0x66; pci_write_config8(MEMCTRL, 0x50, reg8); pci_write_config8(MEMCTRL, 0x51, reg8); } else { /* Use MA Type 5 for DRAM sizing */ reg8 = pci_read_config8(MEMCTRL, 0x50); reg8 &= 0x11; reg8 |= 0xaa; pci_write_config8(MEMCTRL, 0x50, reg8); pci_write_config8(MEMCTRL, 0x51, reg8); reg8 = pci_read_config8(MEMCTRL, 0x53); reg8 &= 0x0f; reg8 |= 0x90; pci_write_config8(MEMCTRL, 0x53, reg8); } sdram_set_vr(ctrl, i); val = 0x40 + i; reg8 = pci_read_config8(MEMCTRL, val); /* max size 3G for new MA table */ reg8 += 0x30; pci_write_config8(MEMCTRL, val, reg8); /* Set Beginning Address */ val = 0x48 + i; pci_write_config8(MEMCTRL, val, 0x0); sdram_calc_size(ctrl, i); /* Clear */ val = 0x54 + (i >> 1); reg8 = pci_read_config8(MEMCTRL, val); reg8 = ~(0x80 >> (4 * (i & 0x1))); pci_write_config8(MEMCTRL, val, reg8); val = 0x40 + i; reg8 = pci_read_config8(MEMCTRL, val); reg8 -= 0x30; pci_write_config8(MEMCTRL, val, reg8); val = 0x48 + i; pci_write_config8(MEMCTRL, val, 0x0); } } /* Clear MA Type */ reg8 = pci_read_config8(MEMCTRL, 0x50); reg8 &= 0x11; pci_write_config8(MEMCTRL, 0x50, reg8); pci_write_config8(MEMCTRL, 0x51, reg8); reg8 = pci_read_config8(MEMCTRL, 0x6b); reg8 &= ~0x08; pci_write_config8(MEMCTRL, 0x6b, reg8); /****************************************************************/ /* DRAM re-initialize for burst length */ /****************************************************************/ for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { sdram_set_vr(ctrl, i); sdram_ending_addr(ctrl, i); step_2_19(ctrl); step_20_21(ctrl); sdram_clear_vr_addr(ctrl, i); } } /****************************************************************/ /* Set the MA Type */ /****************************************************************/ reg8 = pci_read_config8(MEMCTRL, 0x50); reg8 &= 0x11; pci_write_config8(MEMCTRL, 0x50, reg8); reg8 = pci_read_config8(MEMCTRL, 0x51); reg8 &= 0x11; pci_write_config8(MEMCTRL, 0x51, reg8); reg8 = pci_read_config8(MEMCTRL, 0x6b); reg8 &= ~0x08; pci_write_config8(MEMCTRL, 0x6b, reg8); for (i = 0; i < 4; i += 2) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK0_MA_REG + i)); reg8 &= (MA_Bank + MA_Column); val = pci_read_config8(MEMCTRL, 0x50); if (i == 0) { reg8 <<= 4; val &= 0x1f; } else val &= 0xf1; val |= reg8; pci_write_config8(MEMCTRL, 0x50, val); } } /****************************************************************/ /* Set Start and Ending Address */ /****************************************************************/ dl = 0; /* Begin Address */ dh = 0; /* Ending Address */ for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK0_SIZE_REG + i)); if (reg8 == 0) continue; dh += reg8; pci_write_config8(MEMCTRL, (0x40 + i), dh); pci_write_config8(MEMCTRL, (0x48 + i), dl); dl = dh; } } dh <<= 2; // F7_Rx57 Ending address mirror register pci_write_config8(PCI_DEV(0, 0, 7), 0x57, dh); dev = pci_locate_device(PCI_ID(0x1106, 0x324e), 0); pci_write_config8(dev, 0x57, dh); // LOW TOP Address pci_write_config8(MEMCTRL, 0x88, dh); pci_write_config8(MEMCTRL, 0x85, dh); // also program vlink mirror pci_write_config8(PCI_DEV(0, 0, 7), 0xe5, dh); /****************************************************************/ /* Set Physical to Virtual Rank mapping */ /****************************************************************/ pci_write_config32(MEMCTRL, 0x54, 0x0); for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) { reg8 = pci_read_config8(MEMCTRL, (0x54 + (i >> 1))); if (i & 0x1) { /* Odd Rank */ reg8 &= 0xf0; reg8 |= (0x8 | i); } else { /* Even Rank */ reg8 &= 0x0f; reg8 |= ((0x8 | i) << 4); } pci_write_config8(MEMCTRL, (0x54 + (i >> 1)), reg8); } } /****************************************************************/ /* Set DRAM Refresh Counter */ /****************************************************************/ val = pci_read_config8(MEMCTRL, 0X90) & 0X7; val <<= 1; reg8 = pci_read_config8(PCI_DEV(0, 0, 4), SCRATCH_DRAM_256M_BIT); if (reg8) val++; pci_write_config8(MEMCTRL, 0x6a, REFC_Table[val]); /****************************************************************/ /* Chipset Performance UP and other setting after DRAM Sizing */ /****************************************************************/ /* Dram Registers */ val = sizeof(Dram_Table) / sizeof(Dram_Table[0]); for (i = 0; i < val; i += 3) { reg8 = pci_read_config8(MEMCTRL, Dram_Table[i]); reg8 &= Dram_Table[i + 1]; reg8 |= Dram_Table[i + 2]; pci_write_config8(MEMCTRL, Dram_Table[i], reg8); } /* Host Registers */ val = sizeof(Host_Table) / sizeof(Host_Table[0]); for (i = 0; i < val; i += 3) { reg8 = pci_read_config8(HOSTCTRL, Host_Table[i]); reg8 &= Host_Table[i + 1]; reg8 |= Host_Table[i + 2]; pci_write_config8(HOSTCTRL, Host_Table[i], reg8); } /* PM Registers */ #ifdef SETUP_PM_REGISTERS val = sizeof(PM_Table) / sizeof(PM_Table[0]); for (i = 0; i < val; i += 3) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), PM_Table[i]); reg8 &= PM_Table[i + 1]; reg8 |= PM_Table[i + 2]; pci_write_config8(PCI_DEV(0, 0, 4), PM_Table[i], reg8); } #endif pci_write_config8(HOSTCTRL, 0x5d, 0xb2); /****************************************************************/ /* UMA registers for N-series projects */ /****************************************************************/ /* Manual setting frame buffer bank */ for (i = 0; i < 4; i++) { reg8 = pci_read_config8(PCI_DEV(0, 0, 4), (SCRATCH_RANK_0 + i)); if (reg8) val = i; } pci_write_config8(MEMCTRL, 0xb0, val); reg8 = 0x40; // Frame buffer size 64M reg8 |= 0x80; // VGA Enable reg8 |= 0x0a; // A[31:28] = 1010b pci_write_config8(MEMCTRL, 0xa1, reg8); #ifdef ECC // Clear Ecc outl(0x80000180, 0xcf8); outb(0xff, 0xcfc); // Enable Ecc outl(0x80000188, 0xcf8); outb(0xcf, 0xcfc); reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xa5); reg8 |= 0x10; pci_write_config8(PCI_DEV(0, 0, 0), 0xa5, reg8); reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0x91); reg8 |= 0x20; pci_write_config8(PCI_DEV(0, 0, 0), 0x91, reg8); #endif static const struct regmask { u8 reg; u8 mask; u8 val; } b0d1f0[] = { { 0x40, 0x00, 0x8b}, { 0x41, 0x80, 0x43}, { 0x42, 0x00, 0x62}, { 0x43, 0x00, 0x44}, { 0x44, 0x00, 0x34}, { 0x45, 0x00, 0x72} }, b0d0f3[] = { { 0x53, 0xf0, 0x0f}, { 0x60, 0x00, 0x03}, { 0x65, 0x00, 0xd9}, { 0x66, 0x00, 0x80}, { 0x67, 0x00, 0x00}, { 0x68, 0x00, 0x01}, { 0x69, 0xe0, 0x03}, { 0x6b, 0x00, 0x10}, { 0x6c, 0xc1, 0x08}, { 0x6e, 0x00, 0x89}, { 0x6f, 0x00, 0x51}, { 0x75, ~0x40, 0x40}, { 0x76, 0x8f, 0x00}, { 0x7b, 0x00, 0xa0}, { 0x86, 0x01, 0x24}, { 0x86, 0x04, 0x29}, { 0x8c, 0x00, 0x00}, { 0x8d, 0x00, 0x00}, { 0x95, ~0x40, 0x00}, { 0xa2, 0x00, 0x44}, { 0xb1, 0x00, 0xaa} }, b0d0f0[] = { { 0x4d, 0x00, 0x24}, { 0x4f, 0x00, 0x01}, { 0xbc, 0x00, 0x21}, { 0xbe, 0x00, 0x00}, { 0xbf, 0x7f, 0x80} }, b0d17f0[] = { { 0x40, ~0x01, 0x01}, // enable timer/counter shadow registers { 0x67, ~0x03, 0x01}, { 0x5b, ~0x01, 0x00}, { 0x8d, ~0x02, 0x02}, { 0x97, 0x7f, 0x00}, { 0xd2, ~0x18, 0x00}, { 0xe2, ~0x36, 0x06}, { 0xe4, 0x7f, 0x00}, { 0xe5, 0x00, 0x40}, { 0xe6, 0x00, 0x20}, { 0xe7, 0x2f, 0xc0}, { 0xec, ~0x08, 0x00} }, b0d17f7[] = { { 0x4e, 0x7f, 0x80}, { 0x4f, ~(1 << 6), 1 << 6 }, /* PG_CX700: 14.1.1 enable P2P Bridge Header for External PCI Bus */ { 0x74, ~0x00, 0x04}, /* PG_CX700: 14.1.2 APIC FSB directly up to snmic, not on pci */ { 0x7c, ~0x00, 0x02}, /* PG_CX700: 14.1.1 APIC FSB directly up to snmic, not on pci */ { 0xe6, 0x0, 0x04} // MSI post }, b0d19f0[] = { /* P2PE */ { 0x42, ~0x08, 0x08}, // Disable HD Audio, { 0x40, 0x3f, 0x80} // 14.1.3.1.1 of the PG: extended cfg mode for pcie. enable capability, but don't activate }, b0d0f2[] = { { 0x50, ~0x40, 0x88}, { 0x51, 0x80, 0x7b}, { 0x52, 0x90, 0x6f}, { 0x53, 0x00, 0x88}, { 0x54, 0xe4, 0x16}, { 0x55, 0xf2, 0x04}, { 0x56, 0x0f, 0x00}, { 0x57, ~0x04, 0x00}, { 0x5d, 0x00, 0xb2}, { 0x5e, 0x00, 0x88}, { 0x5f, 0x00, 0xc7}, { 0x5c, 0x00, 0x01} }; REGISTERPRESET(0, 0, 0, b0d0f0); REGISTERPRESET(0, 0, 2, b0d0f2); REGISTERPRESET(0, 0, 3, b0d0f3); REGISTERPRESET(0, 1, 0, b0d1f0); REGISTERPRESET(0, 17, 0, b0d17f0); REGISTERPRESET(0, 17, 7, b0d17f7); REGISTERPRESET(0, 19, 0, b0d19f0); }