| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2015 Damien Zammit <damien@zamaudio.com> |
| * |
| * 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; either version 2 of |
| * the License, or (at your option) any later version. |
| * |
| * 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. |
| */ |
| |
| #include <cf9_reset.h> |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <commonlib/helpers.h> |
| #include <console/console.h> |
| #include <cpu/x86/cache.h> |
| #include <delay.h> |
| #include <lib.h> |
| #include "pineview.h" |
| #include "raminit.h" |
| #include <spd.h> |
| #include <string.h> |
| |
| /* Debugging macros. */ |
| #if CONFIG(DEBUG_RAM_SETUP) |
| #define PRINTK_DEBUG(x...) printk(BIOS_DEBUG, x) |
| #else |
| #define PRINTK_DEBUG(x...) |
| #endif |
| |
| #define MAX_TCLK_667 0x30 |
| #define MAX_TCLK_800 0x25 |
| #define MAX_TAC_667 0x45 |
| #define MAX_TAC_800 0x40 |
| |
| #define NOP_CMD (1 << 1) |
| #define PRE_CHARGE_CMD (1 << 2) |
| #define MRS_CMD ((1 << 2) | (1 << 1)) |
| #define EMRS_CMD (1 << 3) |
| #define EMRS1_CMD (EMRS_CMD | (1 << 4)) |
| #define EMRS2_CMD (EMRS_CMD | (1 << 5)) |
| #define EMRS3_CMD (EMRS_CMD | (1 << 5) | (1 << 4)) |
| #define ZQCAL_CMD ((1 << 3) | (1 << 1)) |
| #define CBR_CMD ((1 << 3) | (1 << 2)) |
| #define NORMAL_OP_CMD ((1 << 3) | (1 << 2) | (1 << 1)) |
| |
| #define UBDIMM 1 |
| #define SODIMM 2 |
| |
| #define TOTAL_CHANNELS 1 |
| #define TOTAL_DIMMS 2 |
| |
| #define DIMM_IS_POPULATED(dimms, idx) (dimms[idx].card_type != 0) |
| #define IF_DIMM_POPULATED(dimms, idx) if (dimms[idx].card_type != 0) |
| #define ONLY_DIMMA_IS_POPULATED(dimms, ch) (\ |
| (DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2) && \ |
| !DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3))) |
| #define ONLY_DIMMB_IS_POPULATED(dimms, ch) (\ |
| (DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3) && \ |
| !DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2))) |
| #define BOTH_DIMMS_ARE_POPULATED(dimms, ch) (\ |
| (DIMM_IS_POPULATED(dimms, (ch == 0) ? 0 : 2) && \ |
| (DIMM_IS_POPULATED(dimms, (ch == 0) ? 1 : 3)))) |
| #define FOR_EACH_DIMM(idx) \ |
| for (idx = 0; idx < TOTAL_DIMMS; ++idx) |
| #define FOR_EACH_POPULATED_DIMM(dimms, idx) \ |
| FOR_EACH_DIMM(idx) IF_DIMM_POPULATED(dimms, idx) |
| #define CHANNEL_IS_POPULATED(dimms, idx) ((dimms[idx<<1].card_type != 0) || (dimms[(idx<<1) + 1].card_type != 0)) |
| #define CHANNEL_IS_CARDF(dimms, idx) ((dimms[idx<<1].card_type == 0xf) || (dimms[(idx<<1) + 1].card_type == 0xf)) |
| #define IF_CHANNEL_POPULATED(dimms, idx) if ((dimms[idx<<1].card_type != 0) || (dimms[(idx<<1) + 1].card_type != 0)) |
| #define FOR_EACH_CHANNEL(idx) \ |
| for (idx = 0; idx < TOTAL_CHANNELS; ++idx) |
| #define FOR_EACH_POPULATED_CHANNEL(dimms, idx) \ |
| FOR_EACH_CHANNEL(idx) IF_CHANNEL_POPULATED(dimms, idx) |
| |
| #define RANKS_PER_CHANNEL 4 |
| |
| #define FOR_EACH_RANK_IN_CHANNEL(r) \ |
| for (r = 0; r < RANKS_PER_CHANNEL; ++r) |
| #define FOR_EACH_POPULATED_RANK_IN_CHANNEL(dimms, ch, r) \ |
| FOR_EACH_RANK_IN_CHANNEL(r) if (rank_is_populated(dimms, ch, r)) |
| #define FOR_EACH_RANK(ch, r) \ |
| FOR_EACH_CHANNEL(ch) FOR_EACH_RANK_IN_CHANNEL(r) |
| #define FOR_EACH_POPULATED_RANK(dimms, ch, r) \ |
| FOR_EACH_RANK(ch, r) if (rank_is_populated(dimms, ch, r)) |
| |
| static bool rank_is_populated(struct dimminfo dimms[], u8 ch, u8 r) |
| { |
| return ((dimms[ch<<1].card_type && ((r) < dimms[ch<<1].ranks)) |
| || (dimms[(ch<<1) + 1].card_type |
| && ((r) >= 2) |
| && ((r) < (dimms[(ch<<1) + 1].ranks + 2)))); |
| } |
| |
| static inline void barrier(void) |
| { |
| __asm__ __volatile__("": : :"memory"); |
| } |
| |
| static int decode_spd(struct dimminfo *d, int i) |
| { |
| d->type = 0; |
| if (d->spd_data[20] == 0x2) { |
| d->type = UBDIMM; |
| } else if (d->spd_data[20] == 0x4) { |
| d->type = SODIMM; |
| } |
| d->sides = (d->spd_data[5] & 0x7) + 1; |
| d->banks = (d->spd_data[17] >> 2) - 1; |
| d->chip_capacity = d->banks; |
| d->rows = d->spd_data[3];// - 12; |
| d->cols = d->spd_data[4];// - 9; |
| d->cas_latencies = 0x78; |
| d->cas_latencies &= d->spd_data[18]; |
| if (d->cas_latencies == 0) |
| d->cas_latencies = 7; |
| d->tAAmin = d->spd_data[26]; |
| d->tCKmin = d->spd_data[25]; |
| d->width = (d->spd_data[13] >> 3) - 1; |
| d->page_size = (d->width+1) * (1 << d->cols); // Bytes |
| d->tRAS = d->spd_data[30]; |
| d->tRP = d->spd_data[27]; |
| d->tRCD = d->spd_data[29]; |
| d->tWR = d->spd_data[36]; |
| d->ranks = d->sides; // XXX |
| #if CONFIG(DEBUG_RAM_SETUP) |
| const char *ubso[2] = { "UB", "SO" }; |
| #endif |
| PRINTK_DEBUG("%s-DIMM %d\n", &ubso[d->type][0], i); |
| PRINTK_DEBUG(" Sides : %d\n", d->sides); |
| PRINTK_DEBUG(" Banks : %d\n", d->banks); |
| PRINTK_DEBUG(" Ranks : %d\n", d->ranks); |
| PRINTK_DEBUG(" Rows : %d\n", d->rows); |
| PRINTK_DEBUG(" Cols : %d\n", d->cols); |
| PRINTK_DEBUG(" Page size : %d\n", d->page_size); |
| PRINTK_DEBUG(" Width : %d\n", (d->width + 1) * 8); |
| |
| return 0; |
| } |
| |
| /* Ram Config: DIMMB-DIMMA |
| * 0 EMPTY-EMPTY |
| * 1 EMPTY-x16SS |
| * 2 EMPTY-x16DS |
| * 3 x16SS-x16SS |
| * 4 x16DS-x16DS |
| * 5 EMPTY- x8DS |
| * 6 x8DS - x8DS |
| */ |
| static void find_ramconfig(struct sysinfo *s, u32 chan) |
| { |
| if (s->dimms[chan>>1].sides == 0) { |
| // NC |
| if (s->dimms[(chan>>1) + 1].sides == 0) { |
| // NC/NC |
| s->dimm_config[chan] = 0; |
| } else if (s->dimms[(chan>>1) + 1].sides == 1) { |
| // NC/SS |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // NC/8SS |
| s->dimm_config[chan] = 1; |
| } else { |
| // NC/16SS |
| s->dimm_config[chan] = 1; |
| } |
| } else { |
| // NC/DS |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // NC/8DS |
| s->dimm_config[chan] = 5; |
| } else { |
| // NC/16DS |
| s->dimm_config[chan] = 2; |
| } |
| } |
| } else if (s->dimms[chan>>1].sides == 1) { |
| // SS |
| if (s->dimms[(chan>>1) + 1].sides == 0) { |
| // SS/NC |
| if (s->dimms[chan>>1].width == 0) { |
| // 8SS/NC |
| s->dimm_config[chan] = 1; |
| } else { |
| // 16SS/NC |
| s->dimm_config[chan] = 1; |
| } |
| } else if (s->dimms[(chan>>1) + 1].sides == 1) { |
| // SS/SS |
| if (s->dimms[chan>>1].width == 0) { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // 8SS/8SS |
| s->dimm_config[chan] = 3; |
| } else { |
| // 8SS/16SS |
| die("Mixed Not supported\n"); |
| } |
| } else { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // 16SS/8SS |
| die("Mixed Not supported\n"); |
| } else { |
| // 16SS/16SS |
| s->dimm_config[chan] = 3; |
| } |
| } |
| } else { |
| // SS/DS |
| if (s->dimms[chan>>1].width == 0) { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // 8SS/8DS |
| die("Mixed Not supported\n"); |
| } else { |
| die("Mixed Not supported\n"); |
| } |
| } else { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // 16SS/8DS |
| die("Mixed Not supported\n"); |
| } else { |
| die("Mixed Not supported\n"); |
| } |
| } |
| } |
| } else { |
| // DS |
| if (s->dimms[(chan>>1) + 1].sides == 0) { |
| // DS/NC |
| if (s->dimms[chan>>1].width == 0) { |
| // 8DS/NC |
| s->dimm_config[chan] = 5; |
| } else { |
| s->dimm_config[chan] = 4; |
| } |
| } else if (s->dimms[(chan>>1) + 1].sides == 1) { |
| // DS/SS |
| if (s->dimms[chan>>1].width == 0) { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| // 8DS/8SS |
| die("Mixed Not supported\n"); |
| } else { |
| // 8DS/16SS |
| die("Mixed Not supported\n"); |
| } |
| } else { |
| if (s->dimms[(chan>>1) + 1].width == 0) { |
| die("Mixed Not supported\n"); |
| } else { |
| // 16DS/16DS |
| s->dimm_config[chan] = 4; |
| } |
| } |
| } else { |
| // DS/DS |
| if (s->dimms[chan>>1].width == 0 && s->dimms[(chan>>1)+1].width == 0) { |
| // 8DS/8DS |
| s->dimm_config[chan] = 6; |
| } |
| } |
| } |
| } |
| |
| static void sdram_read_spds(struct sysinfo *s) |
| { |
| u8 i, chan; |
| s->dt0mode = 0; |
| FOR_EACH_DIMM(i) { |
| if (i2c_eeprom_read(s->spd_map[i], 0, 64, s->dimms[i].spd_data) != 64) |
| s->dimms[i].card_type = 0; |
| |
| s->dimms[i].card_type = s->dimms[i].spd_data[62] & 0x1f; |
| hexdump(s->dimms[i].spd_data, 64); |
| } |
| |
| s->spd_type = 0; |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| switch (s->dimms[i].spd_data[2]) { |
| case 0x8: |
| s->spd_type = DDR2; |
| break; |
| case 0xb: |
| default: |
| die("DIMM type mismatch\n"); |
| break; |
| } |
| } |
| |
| int err = 1; |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| err = decode_spd(&s->dimms[i], i); |
| s->dt0mode |= (s->dimms[i].spd_data[49] & 0x2) >> 1; |
| } |
| if (err) { |
| die("No memory dimms, halt\n"); |
| } |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, chan) { |
| find_ramconfig(s, chan); |
| PRINTK_DEBUG(" Config[CH%d] : %d\n", |
| chan, s->dimm_config[chan]); |
| } |
| } |
| |
| #if CONFIG(DEBUG_RAM_SETUP) |
| static u32 fsb_reg_to_mhz(u32 speed) |
| { |
| return (speed * 133) + 667; |
| } |
| |
| static u32 ddr_reg_to_mhz(u32 speed) |
| { |
| u32 mhz; |
| mhz = (speed == 0) ? 667 : |
| (speed == 1) ? 800 : |
| 0; |
| return mhz; |
| } |
| #endif |
| |
| // Return the position of the least significant set bit, 0-indexed. |
| // 0 does not have a lsb, so return -1 for error. |
| static int lsbpos(u8 val) |
| { |
| for (int i = 0; i < 8; i++) |
| if (val & (1 << i)) |
| return i; |
| return -1; |
| } |
| |
| // Return the position of the most significant set bit, 0-indexed. |
| // 0 does not have a msb, so return -1 for error. |
| static int msbpos(u8 val) |
| { |
| for (int i = 7; i >= 0; i--) |
| if (val & (1 << i)) |
| return i; |
| return -1; |
| } |
| |
| static void sdram_detect_smallest_params(struct sysinfo *s) |
| { |
| static const u16 mult[6] = { |
| 3000, // 667 |
| 2500, // 800 |
| }; |
| |
| u8 i; |
| u32 maxtras = 0; |
| u32 maxtrp = 0; |
| u32 maxtrcd = 0; |
| u32 maxtwr = 0; |
| u32 maxtrfc = 0; |
| u32 maxtwtr = 0; |
| u32 maxtrrd = 0; |
| u32 maxtrtp = 0; |
| |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| maxtras = MAX(maxtras, s->dimms[i].spd_data[30] * 1000); |
| maxtrp = MAX(maxtrp, (s->dimms[i].spd_data[27] * 1000) >> 2); |
| maxtrcd = MAX(maxtrcd, (s->dimms[i].spd_data[29] * 1000) >> 2); |
| maxtwr = MAX(maxtwr, (s->dimms[i].spd_data[36] * 1000) >> 2); |
| maxtrfc = MAX(maxtrfc, s->dimms[i].spd_data[42] * 1000 + |
| (s->dimms[i].spd_data[40] & 0xf)); |
| maxtwtr = MAX(maxtwtr, (s->dimms[i].spd_data[37] * 1000) >> 2); |
| maxtrrd = MAX(maxtrrd, (s->dimms[i].spd_data[28] * 1000) >> 2); |
| maxtrtp = MAX(maxtrtp, (s->dimms[i].spd_data[38] * 1000) >> 2); |
| } |
| /* |
| * TODO: on ddr3 there might be some minimal required values for some |
| * Timings: MIN_TRAS = 9, MIN_TRP = 3, MIN_TRCD = 3, MIN_TWR = 3, |
| * MIN_TWTR = 4, MIN_TRRD = 2, MIN_TRTP = 4 |
| */ |
| s->selected_timings.tRAS = MIN(24, DIV_ROUND_UP(maxtras, |
| mult[s->selected_timings.mem_clock])); |
| s->selected_timings.tRP = MIN(10, DIV_ROUND_UP(maxtrp, |
| mult[s->selected_timings.mem_clock])); |
| s->selected_timings.tRCD = MIN(10, DIV_ROUND_UP(maxtrcd, |
| mult[s->selected_timings.mem_clock])); |
| s->selected_timings.tWR = MIN(15, DIV_ROUND_UP(maxtwr, |
| mult[s->selected_timings.mem_clock])); |
| /* Needs to be even */ |
| s->selected_timings.tRFC = 0xfe & (MIN(78, DIV_ROUND_UP(maxtrfc, |
| mult[s->selected_timings.mem_clock])) + 1); |
| s->selected_timings.tWTR = MIN(15, DIV_ROUND_UP(maxtwtr, |
| mult[s->selected_timings.mem_clock])); |
| s->selected_timings.tRRD = MIN(15, DIV_ROUND_UP(maxtrrd, |
| mult[s->selected_timings.mem_clock])); |
| s->selected_timings.tRTP = MIN(15, DIV_ROUND_UP(maxtrtp, |
| mult[s->selected_timings.mem_clock])); |
| |
| PRINTK_DEBUG("Selected timings:\n"); |
| PRINTK_DEBUG("\tFSB: %dMHz\n", fsb_reg_to_mhz(s->selected_timings.fsb_clock)); |
| PRINTK_DEBUG("\tDDR: %dMHz\n", ddr_reg_to_mhz(s->selected_timings.mem_clock)); |
| |
| PRINTK_DEBUG("\tCAS: %d\n", s->selected_timings.CAS); |
| PRINTK_DEBUG("\ttRAS: %d\n", s->selected_timings.tRAS); |
| PRINTK_DEBUG("\ttRP: %d\n", s->selected_timings.tRP); |
| PRINTK_DEBUG("\ttRCD: %d\n", s->selected_timings.tRCD); |
| PRINTK_DEBUG("\ttWR: %d\n", s->selected_timings.tWR); |
| PRINTK_DEBUG("\ttRFC: %d\n", s->selected_timings.tRFC); |
| PRINTK_DEBUG("\ttWTR: %d\n", s->selected_timings.tWTR); |
| PRINTK_DEBUG("\ttRRD: %d\n", s->selected_timings.tRRD); |
| PRINTK_DEBUG("\ttRTP: %d\n", s->selected_timings.tRTP); |
| } |
| |
| static void sdram_detect_ram_speed(struct sysinfo *s) |
| { |
| u8 cas, reg8; |
| u32 reg32; |
| u32 freq = 0; |
| u32 fsb = 0; |
| u8 i; |
| u8 commoncas = 0; |
| u8 highcas = 0; |
| u8 lowcas = 0; |
| |
| // Core frequency |
| fsb = (pci_read_config8(PCI_DEV(0,0,0), 0xe3) & 0x70) >> 4; |
| if (fsb) { |
| fsb = 5 - fsb; |
| } else { |
| fsb = FSB_CLOCK_800MHz; |
| } |
| |
| // DDR frequency |
| freq = (pci_read_config8(PCI_DEV(0,0,0), 0xe3) & 0x80) >> 7; |
| freq |= (pci_read_config8(PCI_DEV(0,0,0), 0xe4) & 0x3) << 1; |
| if (freq) { |
| freq = 6 - freq; |
| } else { |
| freq = MEM_CLOCK_800MHz; |
| } |
| |
| // Detect a common CAS latency |
| commoncas = 0xff; |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| commoncas &= s->dimms[i].spd_data[18]; |
| } |
| if (commoncas == 0) { |
| die("No common CAS among dimms\n"); |
| } |
| |
| // commoncas is nonzero, so these calls will not error |
| u8 msbp = (u8)msbpos(commoncas); |
| u8 lsbp = (u8)lsbpos(commoncas); |
| |
| // Start with fastest common CAS |
| cas = 0; |
| highcas = msbp; |
| lowcas = MAX(lsbp, 5); |
| |
| while (cas == 0 && highcas >= lowcas) { |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| switch (freq) { |
| case MEM_CLOCK_800MHz: |
| if ((s->dimms[i].spd_data[9] > 0x25) || |
| (s->dimms[i].spd_data[10] > 0x40)) { |
| // CAS too fast, lower it |
| highcas--; |
| break; |
| } else { |
| cas = highcas; |
| } |
| break; |
| case MEM_CLOCK_667MHz: |
| default: |
| if ((s->dimms[i].spd_data[9] > 0x30) || |
| (s->dimms[i].spd_data[10] > 0x45)) { |
| // CAS too fast, lower it |
| highcas--; |
| break; |
| } else { |
| cas = highcas; |
| } |
| break; |
| } |
| } |
| } |
| if (highcas < lowcas) { |
| // Timings not supported by MCH, lower the frequency |
| if (freq == MEM_CLOCK_800MHz) { |
| freq--; |
| PRINTK_DEBUG("Run DDR clock speed reduced due to timings\n"); |
| } else { |
| die("Timings not supported by MCH\n"); |
| } |
| cas = 0; |
| highcas = msbp; |
| lowcas = lsbp; |
| while (cas == 0 && highcas >= lowcas) { |
| FOR_EACH_POPULATED_DIMM(s->dimms, i) { |
| if ((s->dimms[i].spd_data[9] > 0x30) || |
| (s->dimms[i].spd_data[10] > 0x45)) { |
| // CAS too fast, lower it |
| highcas--; |
| } else { |
| cas = highcas; |
| } |
| } |
| } |
| if (cas == 0) { |
| die("Unsupported dimms\n"); |
| } |
| } |
| |
| s->selected_timings.CAS = cas; |
| s->selected_timings.mem_clock = freq; |
| s->selected_timings.fsb_clock = fsb; |
| |
| PRINTK_DEBUG("Drive Memory at %dMHz with CAS = %d clocks\n", ddr_reg_to_mhz(s->selected_timings.mem_clock), s->selected_timings.CAS); |
| |
| // Set memory frequency |
| if (s->boot_path == BOOT_PATH_RESET) |
| return; |
| MCHBAR32(0xf14) = MCHBAR32(0xf14) | 0x1; |
| reg32 = (MCHBAR32(0xc00) & (~0x70)) | (1 << 10); |
| if (s->selected_timings.mem_clock == MEM_CLOCK_800MHz) { |
| reg8 = 3; |
| } else { |
| reg8 = 2; |
| } |
| reg32 |= reg8 << 4; |
| MCHBAR32(0xc00) = reg32; |
| s->selected_timings.mem_clock = ((MCHBAR32(0xc00) >> 4) & 0x7) - 2; |
| if (s->selected_timings.mem_clock == MEM_CLOCK_800MHz) { |
| PRINTK_DEBUG("MCH validated at 800MHz\n"); |
| s->nodll = 0; |
| s->maxpi = 63; |
| s->pioffset = 0; |
| } else if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| PRINTK_DEBUG("MCH validated at 667MHz\n"); |
| s->nodll = 1; |
| s->maxpi = 15; |
| s->pioffset = 1; |
| } else { |
| PRINTK_DEBUG("MCH set to unknown (%02x)\n", |
| (uint8_t) s->selected_timings.mem_clock & 0xff); |
| } |
| } |
| |
| #define HPET_BASE 0xfed00000 |
| #define HPET32(x) *((volatile u32 *)(HPET_BASE + x)) |
| static void enable_hpet(void) |
| { |
| u32 reg32; |
| reg32 = RCBA32(HPTC); |
| reg32 &= ~0x3; |
| reg32 |= (1 << 7); |
| RCBA32(HPTC) = reg32; |
| /* On NM10 this only works if read back */ |
| RCBA32(HPTC); |
| HPET32(0x10) = HPET32(0x10) | 1; |
| } |
| |
| static void sdram_clk_crossing(struct sysinfo *s) |
| { |
| u8 clk_idx, fsb_idx; |
| static const u32 clkcross[2][2][4] = { |
| { |
| {0xFFFFFFFF, 0x05030305, 0x0000FFFF, 0x00000000}, //667 667 |
| {0x1F1F1F1F, 0x2A1F1FA5, 0x00000000, 0x05000002}, //667 800 |
| }, |
| { |
| {0x1F1F1F1F, 0x0D07070B, 0x00000000, 0x00000000}, //800 667 |
| {0xFFFFFFFF, 0x05030305, 0x0000FFFF, 0x00000000}, //800 800 |
| } |
| }; |
| clk_idx = s->selected_timings.mem_clock; |
| fsb_idx = s->selected_timings.fsb_clock; |
| |
| MCHBAR32(0xc04) = clkcross[fsb_idx][clk_idx][0]; |
| MCHBAR32(0xc50) = clkcross[fsb_idx][clk_idx][1]; |
| MCHBAR32(0xc54) = clkcross[fsb_idx][clk_idx][2]; |
| MCHBAR32(0xc28) = 0; |
| MCHBAR32(0xc2c) = clkcross[fsb_idx][clk_idx][3]; |
| MCHBAR32(0xc08) = MCHBAR32(0xc08) | (1 << 7); |
| |
| if ((fsb_idx == 0) && (clk_idx == 1)) { |
| MCHBAR8(0x6d4) = 0; |
| MCHBAR32(0x700) = 0; |
| MCHBAR32(0x704) = 0; |
| } |
| |
| static const u32 clkcross2[2][2][8] = { |
| { |
| { 0, 0x08010204, 0, 0x08010204, 0, 0, 0, 0x04080102}, // 667 667 |
| { 0x04080000, 0x10010002, 0x10000000, 0x20010208, 0, 0x00000004, 0x02040000, 0x08100102}, // 667 800 |
| }, |
| { |
| { 0x10000000, 0x20010208, 0x04080000, 0x10010002, 0, 0, 0x08000000, 0x10200204}, // 800 667 |
| { 0x00000000, 0x08010204, 0, 0x08010204, 0, 0, 0, 0x04080102}, // 800 800 |
| } |
| }; |
| |
| MCHBAR32(0x6d8) = clkcross2[fsb_idx][clk_idx][0]; |
| MCHBAR32(0x6e0) = clkcross2[fsb_idx][clk_idx][0]; |
| MCHBAR32(0x6e8) = clkcross2[fsb_idx][clk_idx][0]; |
| MCHBAR32(0x6d8+4) = clkcross2[fsb_idx][clk_idx][1]; |
| MCHBAR32(0x6e0+4) = clkcross2[fsb_idx][clk_idx][1]; |
| MCHBAR32(0x6e8+4) = clkcross2[fsb_idx][clk_idx][1]; |
| MCHBAR32(0x6f0) = clkcross2[fsb_idx][clk_idx][2]; |
| MCHBAR32(0x6f4) = clkcross2[fsb_idx][clk_idx][3]; |
| MCHBAR32(0x6f8) = clkcross2[fsb_idx][clk_idx][4]; |
| MCHBAR32(0x6fc) = clkcross2[fsb_idx][clk_idx][5]; |
| MCHBAR32(0x708) = clkcross2[fsb_idx][clk_idx][6]; |
| MCHBAR32(0x70c) = clkcross2[fsb_idx][clk_idx][7]; |
| } |
| |
| static void sdram_clkmode(struct sysinfo *s) |
| { |
| u8 reg8; |
| u16 reg16; |
| |
| MCHBAR16(0x1b6) = MCHBAR16(0x1b6) & ~(1 << 8); |
| MCHBAR8(0x1b6) = MCHBAR8(0x1b6) & ~0x3f; |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| reg8 = 0; |
| reg16 = 1; |
| } else { |
| reg8 = 1; |
| reg16 = (1 << 8) | (1 << 5); |
| } |
| if (s->boot_path != BOOT_PATH_RESET) |
| MCHBAR16(0x1c0) = (MCHBAR16(0x1c0) & ~(0x033f)) | reg16; |
| |
| MCHBAR32(0x220) = 0x58001117; |
| MCHBAR32(0x248) = (MCHBAR32(0x248) | (1 << 23)); |
| |
| const u32 cas_to_reg[2][4] = { |
| {0x00000000, 0x00030100, 0x0C240201, 0x00000000}, // 667 |
| {0x00000000, 0x00030100, 0x0C240201, 0x10450302} // 800 |
| }; |
| |
| MCHBAR32(0x224) = cas_to_reg[reg8][s->selected_timings.CAS - 3]; |
| } |
| |
| static void sdram_timings(struct sysinfo *s) |
| { |
| u8 i, j, ch, r, ta1, ta2, ta3, ta4, trp, bank, page, flag; |
| u8 reg8, wl; |
| u16 reg16; |
| u32 reg32, reg2; |
| static const u8 pagetab[2][2] = {{0xe, 0x12}, {0x10, 0x14}}; |
| |
| // Only consider DDR2 |
| wl = s->selected_timings.CAS - 1; |
| ta1 = ta2 = 6; |
| ta3 = s->selected_timings.CAS; |
| ta4 = 8; |
| s->selected_timings.tRFC = (s->selected_timings.tRFC + 1) & 0xfe; |
| trp = 0; |
| bank = 1; |
| page = 0; |
| |
| MCHBAR8(0x240) = ((wl - 3) << 4) | (s->selected_timings.CAS - 3); |
| |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| i = ch << 1; |
| if (s->dimms[i].banks == 1) { |
| trp = 1; |
| bank = 0; |
| } |
| if (s->dimms[i].page_size == 2048) { |
| page = 1; |
| } |
| } |
| PRINTK_DEBUG("trp=%d bank=%d page=%d\n",trp, bank, page); |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| flag = 0; |
| } else { |
| flag = 1; |
| } |
| |
| MCHBAR8(0x26f) = MCHBAR8(0x26f) | 0x3; |
| MCHBAR16(0x250) = ((wl + 4 + s->selected_timings.tWR) << 6) | |
| ((2 + MAX(s->selected_timings.tRTP, 2)) << 2) | 1; |
| reg32 = (bank << 21) | (s->selected_timings.tRRD << 17) | |
| (s->selected_timings.tRP << 13) | |
| ((s->selected_timings.tRP + trp) << 9) | |
| s->selected_timings.tRFC; |
| if (bank == 0) { |
| reg32 |= (pagetab[flag][page] << 22); |
| } |
| MCHBAR16(0x252) = (u16) reg32; |
| MCHBAR16(0x254) = (u16) (reg32 >> 16); |
| |
| reg16 = (MCHBAR16(0x254) & 0xfc0) >> 6; |
| MCHBAR16(0x62c) = (MCHBAR16(0x62c) & ~0x1f80) | (reg16 << 7); |
| |
| reg16 = (s->selected_timings.tRCD << 12) | (4 << 8) | (ta2 << 4) | ta4; |
| MCHBAR16(0x256) = reg16; |
| |
| reg32 = (s->selected_timings.tRCD << 17) | |
| ((wl + 4 + s->selected_timings.tWTR) << 12) | |
| (ta3 << 8) | (4 << 4) | ta1; |
| MCHBAR32(0x258) = reg32; |
| |
| reg16 = ((s->selected_timings.tRP + trp) << 9) | |
| s->selected_timings.tRFC; |
| MCHBAR8(0x25b) = (u8) reg16; |
| MCHBAR8(0x25c) = (u8) (reg16 >> 8); |
| |
| MCHBAR16(0x260) = (MCHBAR16(0x260) & ~0x3fe) | (100 << 1); |
| MCHBAR8(0x25d) = (MCHBAR8(0x25d) & ~0x3f) | s->selected_timings.tRAS; |
| MCHBAR16(0x244) = 0x2310; |
| |
| MCHBAR8(0x246) = (MCHBAR8(0x246) & ~0x1f) | 1; |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| reg32 = 3000; |
| } else { |
| reg32 = 2500; |
| } |
| if (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) { |
| reg2 = 6000; |
| } else { |
| reg2 = 5000; |
| } |
| reg16 = (u16)((((s->selected_timings.CAS + 7)*(reg32)) / reg2) << 8); |
| MCHBAR16(0x248) = (MCHBAR16(0x248) & ~0x1f00) | reg16; |
| |
| flag = 0; |
| if (wl > 2) { |
| flag = 1; |
| } |
| reg16 = (u8) (wl - 1 - flag); |
| reg16 |= reg16 << 4; |
| reg16 |= flag << 8; |
| MCHBAR16(0x24d) = (MCHBAR16(0x24d) & ~0x1ff) | reg16; |
| |
| MCHBAR16(0x25e) = 0x1585; |
| MCHBAR8(0x265) = MCHBAR8(0x265) & ~0x1f; |
| MCHBAR16(0x265) = (MCHBAR16(0x265) & ~0x3f00) | |
| ((s->selected_timings.CAS + 9) << 8); |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| reg16 = 0x514; |
| reg32 = 0xa28; |
| } else { |
| reg16 = 0x618; |
| reg32 = 0xc30; |
| } |
| MCHBAR32(0x268) = (MCHBAR32(0x268) & ~0xfffff00) | |
| (0x3f << 22) | (reg32 << 8); |
| MCHBAR8(0x26c) = 0x00; |
| MCHBAR16(0x2b8) = (MCHBAR16(0x2b8) & 0xc000) | reg16; |
| MCHBAR8(0x274) = MCHBAR8(0x274) | 1; |
| |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0x7f000000) | (0xb << 25); |
| i = s->selected_timings.mem_clock; |
| j = s->selected_timings.fsb_clock; |
| if (i > j) { |
| MCHBAR32(0x248) = MCHBAR32(0x248) | (1 << 24); |
| } |
| |
| MCHBAR8(0x24c) = MCHBAR8(0x24c) & ~0x3; |
| MCHBAR16(0x24d) = (MCHBAR16(0x24d) & ~0x7c00) | ((wl + 10) << 10); |
| MCHBAR32(0x260) = (MCHBAR32(0x260) & ~0x70e0000) | (3 << 24) | (3 << 17); |
| reg16 = 0x15 << 6; |
| reg16 |= 0x1f; |
| reg16 |= (0x6 << 12); |
| MCHBAR16(0x26d) = (MCHBAR16(0x26d) & ~0x7fff) | reg16; |
| |
| reg32 = (0x6 << 27) | (1 << 25); |
| MCHBAR32(0x268) = (MCHBAR32(0x268) & ~0x30000000) | ((u32)(reg32 << 8)); |
| MCHBAR8(0x26c) = (MCHBAR8(0x26c) & ~0xfa) | ((u8)(reg32 >> 24)); |
| MCHBAR8(0x271) = MCHBAR8(0x271) & ~(1 << 7); |
| MCHBAR8(0x274) = MCHBAR8(0x274) & ~0x6; |
| reg32 = (u32) (((6 & 0x03) << 30) | (4 << 25) | (1 << 20) | (8 << 15) | |
| (6 << 10) | (4 << 5) | 1); |
| MCHBAR32(0x278) = reg32; |
| |
| MCHBAR16(0x27c) = (MCHBAR16(0x27c) & ~0x1ff) | (8 << 3) | (6 >> 2); |
| MCHBAR16(0x125) = MCHBAR16(0x125) | 0x1c00 | (0x1f << 5); |
| MCHBAR8(0x127) = (MCHBAR8(0x127) & ~0xff) | 0x40; |
| MCHBAR8(0x128) = (MCHBAR8(0x128) & ~0x7) | 0x5; |
| MCHBAR8(0x129) = MCHBAR8(0x129) | 0x1f; |
| reg8 = 3 << 6; |
| reg8 |= (s->dt0mode << 4); |
| reg8 |= 0x0c; |
| MCHBAR8(0x12f) = (MCHBAR8(0x12f) & ~0xdf) | reg8; |
| MCHBAR8(0x18c) = MCHBAR8(0x18c) & ~0x2; |
| MCHBAR8(0x228) = (MCHBAR8(0x228) & ~0x7) | 0x2; |
| MCHBAR16(0x241) = (MCHBAR16(0x241) & ~0x3fc) | (4 << 2); |
| reg32 = (2 << 29) | (1 << 28) | (1 << 23); |
| MCHBAR32(0x120) = (MCHBAR32(0x120) & ~0xffb00000) | reg32; |
| |
| reg8 = (u8) ((MCHBAR16(0x252) & 0xe000) >> 13); |
| reg8 |= (u8) ((MCHBAR16(0x254) & 1) << 3); |
| MCHBAR8(0x12d) = (MCHBAR8(0x12d) & ~0xf0) | (reg8 << 4); |
| reg8 = (u8) ((MCHBAR32(0x258) & 0xf0000) >> 17); |
| MCHBAR8(0x12d) = (MCHBAR8(0x12d) & ~0xf) | reg8; |
| MCHBAR8(0x12e) = MCHBAR8(0x12e) & ~0xfc; |
| MCHBAR8(0x12e) = MCHBAR8(0x12e) & ~0x3; |
| MCHBAR8(0x12f) = MCHBAR8(0x12f) & ~0x3; |
| MCHBAR8(0x241) = MCHBAR8(0x241) | 1; |
| MCHBAR16(0x1b6) = MCHBAR16(0x1b6) | (1 << 9); |
| for (i = 0; i < 8; i++) { |
| MCHBAR32(0x540 + i*4) = (MCHBAR32(0x540 + i*4) & ~0x3f3f3f3f) | |
| 0x0c0c0c0c; |
| } |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) | |
| ((s->selected_timings.CAS + 1) << 16); |
| for (i = 0; i < 8; i++) { |
| MCHBAR8(0x560 + i*4) = MCHBAR8(0x560 + i*4) & ~0x3f; |
| MCHBAR16(0x58c) = MCHBAR16(0x58c) & ((u16) (~(3 << (i*2)))); |
| MCHBAR16(0x588) = MCHBAR16(0x588) & ((u16) (~(3 << (i*2)))); |
| MCHBAR16(0x5fa) = MCHBAR16(0x5fa) & ((u16) (~(3 << (i*2)))); |
| } |
| MCHBAR8(0x5f0) = MCHBAR8(0x5f0) & ~0x1; |
| MCHBAR8(0x5f0) = MCHBAR8(0x5f0) | 0x2; |
| MCHBAR8(0x5f0) = MCHBAR8(0x5f0) | 0x4; |
| MCHBAR32(0x2c0) = MCHBAR32(0x2c0) | 0xc0400; |
| MCHBAR32(0x594) = MCHBAR32(0x594) | (1 << 31); |
| } |
| |
| static void sdram_p_clkset0(const struct pllparam *pll, u8 f, u8 i) |
| { |
| MCHBAR16(0x5a0) = (MCHBAR16(0x5a0) & ~0xc440) | |
| (pll->clkdelay[f][i] << 14) | |
| (pll->dben[f][i] << 10) | |
| (pll->dbsel[f][i] << 6); |
| MCHBAR8(0x581) = (MCHBAR8(0x581) & ~0x3f) | pll->pi[f][i]; |
| } |
| |
| static void sdram_p_clkset1(const struct pllparam *pll, u8 f, u8 i) |
| { |
| MCHBAR16(0x5a0) = (MCHBAR16(0x5a0) & ~0x30880) | |
| (pll->clkdelay[f][i] << 16) | |
| (pll->dben[f][i] << 11) | |
| (pll->dbsel[f][i] << 7); |
| MCHBAR8(0x582) = (MCHBAR8(0x582) & ~0x3f) | pll->pi[f][i]; |
| } |
| |
| static void sdram_p_cmd(const struct pllparam *pll, u8 f, u8 i) |
| { |
| u8 reg8; |
| reg8 = pll->dbsel[f][i] << 5; |
| reg8 |= pll->dben[f][i] << 6; |
| MCHBAR8(0x594) = (MCHBAR8(0x594) & ~0x60) | reg8; |
| |
| reg8 = pll->clkdelay[f][i] << 4; |
| MCHBAR8(0x598) = (MCHBAR8(0x598) & ~0x30) | reg8; |
| |
| reg8 = pll->pi[f][i]; |
| MCHBAR8(0x580) = (MCHBAR8(0x580) & ~0x3f) | reg8; |
| MCHBAR8(0x583) = (MCHBAR8(0x583) & ~0x3f) | reg8; |
| } |
| |
| static void sdram_p_ctrl(const struct pllparam *pll, u8 f, u8 i) |
| { |
| u8 reg8; |
| u32 reg32; |
| reg32 = ((u32) pll->dbsel[f][i]) << 20; |
| reg32 |= ((u32) pll->dben[f][i]) << 21; |
| reg32 |= ((u32) pll->dbsel[f][i]) << 22; |
| reg32 |= ((u32) pll->dben[f][i]) << 23; |
| reg32 |= ((u32) pll->clkdelay[f][i]) << 24; |
| reg32 |= ((u32) pll->clkdelay[f][i]) << 27; |
| MCHBAR32(0x59c) = (MCHBAR32(0x59c) & ~0x1bf0000) | reg32; |
| |
| reg8 = pll->pi[f][i]; |
| MCHBAR8(0x584) = (MCHBAR8(0x584) & ~0x3f) | reg8; |
| MCHBAR8(0x585) = (MCHBAR8(0x585) & ~0x3f) | reg8; |
| |
| reg32 = ((u32) pll->dbsel[f][i]) << 12; |
| reg32 |= ((u32) pll->dben[f][i]) << 13; |
| reg32 |= ((u32) pll->dbsel[f][i]) << 8; |
| reg32 |= ((u32) pll->dben[f][i]) << 9; |
| reg32 |= ((u32) pll->clkdelay[f][i]) << 14; |
| reg32 |= ((u32) pll->clkdelay[f][i]) << 10; |
| MCHBAR32(0x598) = (MCHBAR32(0x598) & ~0xff00) | reg32; |
| |
| reg8 = pll->pi[f][i]; |
| MCHBAR8(0x586) = (MCHBAR8(0x586) & ~0x3f) | reg8; |
| MCHBAR8(0x587) = (MCHBAR8(0x587) & ~0x3f) | reg8; |
| } |
| |
| static void sdram_p_dqs(struct pllparam *pll, u8 f, u8 clk) |
| { |
| u8 rank, dqs, reg8, j; |
| u32 reg32; |
| |
| j = clk - 40; |
| reg8 = 0; |
| reg32 = 0; |
| rank = j % 4; |
| dqs = j / 4; |
| |
| reg32 |= ((u32) pll->dben[f][clk]) << (dqs + 9); |
| reg32 |= ((u32) pll->dbsel[f][clk]) << dqs; |
| MCHBAR32(0x5b4+rank*4) = (MCHBAR32(0x5b4+rank*4) & |
| ~((1 << (dqs+9))|(1 << dqs))) | reg32; |
| |
| reg32 = ((u32) pll->clkdelay[f][clk]) << ((dqs*2) + 16); |
| MCHBAR32(0x5c8+rank*4) = (MCHBAR32(0x5c8+rank*4) & |
| ~((1 << (dqs*2 + 17))|(1 << (dqs*2 + 16)))) | reg32; |
| |
| reg8 = pll->pi[f][clk]; |
| MCHBAR8(0x520+j) = (MCHBAR8(0x520+j) & ~0x3f) | reg8; |
| } |
| |
| |
| static void sdram_p_dq(struct pllparam *pll, u8 f, u8 clk) |
| { |
| u8 rank, dq, reg8, j; |
| u32 reg32; |
| |
| j = clk - 8; |
| reg8 = 0; |
| reg32 = 0; |
| rank = j % 4; |
| dq = j / 4; |
| |
| reg32 |= ((u32) pll->dben[f][clk]) << (dq + 9); |
| reg32 |= ((u32) pll->dbsel[f][clk]) << dq; |
| MCHBAR32(0x5a4+rank*4) = (MCHBAR32(0x5a4+rank*4) & |
| ~((1 << (dq+9))|(1 << dq))) | reg32; |
| |
| reg32 = ((u32) pll->clkdelay[f][clk]) << (dq*2); |
| MCHBAR32(0x5c8+rank*4) = (MCHBAR32(0x5c8+rank*4) & |
| ~((1 << (dq*2 + 1))|(1 << (dq*2)))) | reg32; |
| |
| reg8 = pll->pi[f][clk]; |
| MCHBAR8(0x500+j) = (MCHBAR8(0x500+j) & ~0x3f) | reg8; |
| } |
| |
| static void sdram_calibratepll(struct sysinfo *s, u8 pidelay) |
| { |
| struct pllparam pll = { |
| .pi = { |
| { // 667 |
| 3, 3, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, |
| 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, |
| 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, |
| 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, |
| 0, 0, 0, 0, 1, 1, 1, 1, 3, 3, 3, 3 |
| }, |
| { // 800 |
| 53, 53, 10, 10, 5, 5, 5, 5, 27, 27, 27, 27, |
| 34, 34, 34, 34, 34, 34, 34, 34, 39, 39, 39, 39, |
| 47, 47, 47, 47, 44, 44, 44, 44, 47, 47, 47, 47, |
| 47, 47, 47, 47, 59, 59, 59, 59, 2, 2, 2, 2, |
| 2, 2, 2, 2, 7, 7, 7, 7, 15, 15, 15, 15, |
| 12, 12, 12, 12, 15, 15, 15, 15, 15, 15, 15, 15 |
| }}, |
| |
| .dben = { |
| { // 667 |
| 0,0,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 1,1,1,1,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0 |
| }, |
| { // 800 |
| 1,1,1,1,1,1,1,1,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,0,0,0,0, |
| 1,1,1,1,0,0,0,0,0,0,0,0 |
| }}, |
| |
| .dbsel = { |
| { // 667 |
| 0,0,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 1,1,1,1,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0 |
| }, |
| { // 800 |
| 0,0,1,1,1,1,1,1,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,1,1,1,1, |
| 1,1,1,1,1,1,1,1,0,0,0,0, |
| 1,1,1,1,0,0,0,0,0,0,0,0 |
| }}, |
| |
| .clkdelay = { |
| { // 667 |
| 0,0,1,1,0,0,0,0,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0, |
| 0,0,0,0,0,0,0,0,0,0,0,0 |
| }, |
| { // 800 |
| 0,0,0,0,0,0,0,0,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,0,0,0,0,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1, |
| 1,1,1,1,1,1,1,1,1,1,1,1 |
| }} |
| }; |
| |
| u8 i, f; |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| f = 0; |
| } else { |
| f = 1; |
| } |
| for (i = 0; i < 72; i++) { |
| pll.pi[f][i] += pidelay; |
| } |
| |
| MCHBAR8(0x1a4) = MCHBAR8(0x1a4) & ~(1 << 7); |
| MCHBAR16(0x190) = (MCHBAR16(0x190) & (u16) ~(0x3fff)) | 0x1fff; |
| |
| sdram_p_clkset0(&pll, f, 0); |
| sdram_p_clkset1(&pll, f, 1); |
| sdram_p_cmd(&pll, f, 2); |
| sdram_p_ctrl(&pll, f, 4); |
| for (i = 0; i < 32; i++) { |
| sdram_p_dqs(&pll, f, i+40); |
| } |
| for (i = 0; i < 32; i++) { |
| sdram_p_dq(&pll, f, i+8); |
| } |
| } |
| |
| static void sdram_calibratehwpll(struct sysinfo *s) |
| { |
| u8 reg8; |
| |
| s->async = 0; |
| reg8 = 0; |
| MCHBAR16(0x180) = MCHBAR16(0x180) | (1 << 15); |
| MCHBAR8(0x180) = MCHBAR8(0x180) & ~(1 << 7); |
| MCHBAR8(0x180) = MCHBAR8(0x180) | (1 << 3); |
| MCHBAR8(0x180) = MCHBAR8(0x180) | (1 << 2); |
| |
| MCHBAR8(0x180) = MCHBAR8(0x180) | (1 << 7); |
| while ((MCHBAR8(0x180) & (1 << 2)) == 0); |
| |
| reg8 = (MCHBAR8(0x180) & (1 << 3)) >> 3; |
| if (reg8 != 0) { |
| s->async = 1; |
| } |
| } |
| |
| static void sdram_dlltiming(struct sysinfo *s) |
| { |
| u8 reg8, i; |
| u16 reg16; |
| u32 reg32; |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| reg32 = 0x8014227; |
| } else { |
| reg32 = 0x14221; |
| } |
| MCHBAR32(0x19c) = (MCHBAR32(0x19c) & ~0xfffffff) | reg32; |
| MCHBAR32(0x19c) = MCHBAR32(0x19c) | (1 << 23); |
| MCHBAR32(0x19c) = MCHBAR32(0x19c) | (1 << 15); |
| MCHBAR32(0x19c) = MCHBAR32(0x19c) & ~(1 << 15); |
| |
| if (s->nodll) { |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 0); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 2); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 4); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 8); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 10); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 12); |
| MCHBAR16(0x198) = MCHBAR16(0x198) | (1 << 14); |
| } else { |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 0); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 2); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 4); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 8); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 10); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 12); |
| MCHBAR16(0x198) = MCHBAR16(0x198) & ~(1 << 14); |
| } |
| |
| if (s->nodll) { |
| MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x3f) | 0x7; |
| } else { |
| MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x3f); |
| } |
| |
| sdram_calibratepll(s, 0); // XXX check |
| |
| MCHBAR16(0x5f0) = MCHBAR16(0x5f0) | (1 << 11); |
| MCHBAR16(0x5f0) = MCHBAR16(0x5f0) | (1 << 12); |
| |
| for (i = 0; i < 8; i++) { |
| MCHBAR16(0x5f0) = MCHBAR16(0x5f0) | ((1 << 10) >> i); |
| } |
| MCHBAR8(0x2c14) = MCHBAR8(0x2c14) | 1; |
| MCHBAR16(0x182) = 0x5005; |
| MCHBAR16(0x18a) = (MCHBAR16(0x18a) & ~0x1f1f) | 0x51a; |
| MCHBAR16(0x2c00) = (MCHBAR16(0x2c00) & ~0xbf3f) | 0x9010; |
| |
| if (s->nodll) { |
| MCHBAR8(0x18e) = (MCHBAR8(0x18e) & ~0x7f) | 0x6b; |
| } else { |
| MCHBAR8(0x18e) = (MCHBAR8(0x18e) & ~0x7f) | 0x55; |
| sdram_calibratehwpll(s); |
| } |
| |
| MCHBAR32(0x248) = MCHBAR32(0x248) & ~(1 << 22); |
| MCHBAR8(0x5d9) = MCHBAR8(0x5d9) & ~0x2; |
| MCHBAR8(0x189) = MCHBAR8(0x189) | 0xc0; |
| MCHBAR8(0x189) = MCHBAR8(0x189) & ~(1 << 5); |
| MCHBAR8(0x189) = (MCHBAR8(0x189) & ~0xc0) | (1 << 6); |
| MCHBAR8(0x188) = (MCHBAR8(0x188) & ~0x3f) | 0x1a; |
| MCHBAR8(0x188) = MCHBAR8(0x188) | 1; |
| |
| MCHBAR8(0x1a8) = MCHBAR8(0x1a8) | 1; |
| MCHBAR32(0x1a0) = 0x551803; |
| |
| reg8 = 0x00; //switch all clocks on anyway |
| |
| MCHBAR32(0x5a0) = (MCHBAR32(0x5a0) & ~0x3f000000) | (reg8 << 24); |
| MCHBAR8(0x594) = MCHBAR8(0x594) & ~1; |
| reg16 = 0; |
| if (!rank_is_populated(s->dimms, 0, 0)) { |
| reg16 |= (1 << 8) | (1 << 4) | (1 << 0); |
| } |
| if (!rank_is_populated(s->dimms, 0, 1)) { |
| reg16 |= (1 << 9) | (1 << 5) | (1 << 1); |
| } |
| if (!rank_is_populated(s->dimms, 0, 2)) { |
| reg16 |= (1 << 10) | (1 << 6) | (1 << 2); |
| } |
| if (!rank_is_populated(s->dimms, 0, 3)) { |
| reg16 |= (1 << 11) | (1 << 7) | (1 << 3); |
| } |
| MCHBAR16(0x59c) = MCHBAR16(0x59c) | reg16; |
| } |
| |
| static void sdram_rcomp(struct sysinfo *s) |
| { |
| u8 i, j, reg8, rcompp, rcompn, srup, srun; |
| u16 reg16; |
| u32 reg32, rcomp1, rcomp2; |
| |
| static const u8 rcompupdate[7] = { 0, 0, 0, 1, 1, 0, 0 }; |
| static const u8 rcompslew = 0xa; |
| static const u8 rcompstr[7] = { 0x66, 0, 0xaa, 0x55, 0x55, 0x77, 0x77 }; |
| static const u16 rcompscomp[7] = { 0xa22a, 0, 0xe22e, 0xe22e, 0xe22e, 0xa22a, 0xa22a }; |
| static const u8 rcompdelay[7] = { 1, 0, 0, 0, 0, 1, 1 }; |
| static const u16 rcompctl[7] = { 0x31c, 0, 0x374, 0x3a2, 0x3d0, 0x3fe, 0x42c }; |
| static const u16 rcompf[7] = { 0x1114, 0, 0x0505, 0x0909, 0x0909, 0x0a0a, 0x0a0a }; |
| |
| // NC-NC x16SS x16DS x16SS2 x16DS2 x8DS, x8DS2 |
| static const u8 rcompstr2[7] = { 0x00, 0x55, 0x55, 0xaa, |
| 0xaa , 0x55, 0xaa}; |
| static const u16 rcompscomp2[7] = { 0x0000, 0xe22e, 0xe22e, 0xe22e, |
| 0x8228 , 0xe22e, 0x8228 }; |
| static const u8 rcompdelay2[7] = { 0, 0, 0, 0, 2 , 0, 2}; |
| |
| static const u8 rcomplut[64][12] = { |
| { 9, 9,11,11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 9, 9,11, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 10,9,12, 11, 2, 2, 5,5, 6, 6,5, 5}, |
| { 10,9,12, 11, 2, 2, 6,5, 7, 6,6, 5}, |
| { 10,10,12, 12, 2, 2, 6,5, 7, 6,6, 5}, |
| { 10,10,12, 12, 2, 2, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 2, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 2, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 2, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 10,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 11,10,12, 12, 3, 3, 6,6, 7, 7,6, 6}, |
| { 11,10,14, 13, 3, 3, 6,6, 7, 7,6, 6}, |
| { 12,10,14, 13, 3, 3, 6,6, 7, 7,6, 6}, |
| { 12,12,14, 13, 3, 3, 7,6, 7, 7,7, 6}, |
| { 13,12,16, 15, 3, 3, 7,6, 8, 7,7, 6}, |
| { 13,14,16, 15, 4, 3, 7,7, 8, 8,7, 7}, |
| { 14,14,16, 17, 4, 3, 7,7, 8, 8,7, 7}, |
| { 14,16,18, 17, 4, 4, 8,7, 8, 8,8, 7}, |
| { 15,16,18, 19, 4, 4, 8,7, 9, 8,8, 7}, |
| { 15,18,18, 19, 4, 4, 8,8, 9, 9,8, 8}, |
| { 16,18,20, 21, 4, 4, 8,8, 9, 9,8, 8}, |
| { 16,19,20, 21, 5, 4, 9,8, 10, 9,9, 8}, |
| { 16,19,20, 23, 5, 5, 9,9, 10, 10,9, 9}, |
| { 17,19,22, 23, 5, 5, 9,9, 10, 10,9, 9}, |
| { 17,20,22, 25, 5, 5, 9,9, 10, 10,9, 9}, |
| { 17,20,22, 25, 5, 5, 9,9, 10, 10,9, 9}, |
| { 18,20,22, 25, 5, 5, 9,9, 10, 10,9, 9}, |
| { 18,21,24, 25, 5, 5, 9,9, 11, 10,9, 9}, |
| { 19,21,24, 27, 5, 5, 9, 9, 11, 11,9, 9}, |
| { 19,22,24, 27, 5, 5, 10,9, 11, 11,10, 9}, |
| { 20,22,24, 27, 6, 5, 10,10, 11, 11,10, 10}, |
| { 20,23,26, 27, 6, 6, 10,10, 12, 12,10, 10}, |
| { 20,23,26, 29, 6, 6, 10,10, 12, 12,10, 10}, |
| { 21,24,26, 29, 6, 6, 10,10, 12, 12,10, 10}, |
| { 21,24,26, 29, 6, 6, 11,10, 12, 13,11, 10}, |
| { 22,25,28, 29, 6, 6, 11,11, 13, 13,11, 11}, |
| { 22,25,28, 31, 6, 6, 11,11, 13, 13,11, 11}, |
| { 22,26,28, 31, 6, 6, 11,11, 13, 14,11, 11}, |
| { 23,26,30, 31, 7, 6, 12,11, 14, 14,12, 11}, |
| { 23,27,30, 33, 7, 7, 12,12, 14, 14,12, 12}, |
| { 23,27,30, 33, 7, 7, 12,12, 14, 15,12, 12}, |
| { 24,28,32, 33, 7, 7, 12,12, 15, 15,12, 12}, |
| { 24,28,32, 33, 7, 7, 12,12, 15, 16,12, 12}, |
| { 24,29,32, 35, 7, 7, 12,12, 15, 16,12, 12}, |
| { 25,29,32, 35, 7, 7, 12,12, 15, 17,12, 12}, |
| { 25,30,32, 35, 7, 7, 12,12, 15, 17,12, 12}, |
| { 25,30,32, 35, 7, 7, 12,12, 15, 17,12, 12}, |
| }; |
| |
| srup = 0; |
| srun = 0; |
| |
| if (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) { |
| rcomp1 = 0x00050431; |
| } else { |
| rcomp1 = 0x00050542; |
| } |
| if (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) { |
| rcomp2 = 0x14C42827; |
| } else { |
| rcomp2 = 0x19042827; |
| } |
| |
| for (i = 0; i < 7; i++) { |
| if (i == 1) |
| continue; |
| reg8 = rcompupdate[i]; |
| MCHBAR8(rcompctl[i]) = (MCHBAR8(rcompctl[i]) & ~0x1) | reg8; |
| MCHBAR8(rcompctl[i]) = MCHBAR8(rcompctl[i]) & ~0x2; |
| reg16 = (u16) rcompslew; |
| MCHBAR16(rcompctl[i]) = (MCHBAR16(rcompctl[i]) & ~0xf000) | |
| (reg16 << 12); |
| MCHBAR8(rcompctl[i]+4) = rcompstr[i]; |
| MCHBAR16(rcompctl[i]+0xe) = rcompscomp[i]; |
| MCHBAR8(rcompctl[i]+0x14) = (MCHBAR8(rcompctl[i]+0x14) & ~0x3) | |
| rcompdelay[i]; |
| if (i == 2) { |
| reg16 = (u16) rcompslew; |
| MCHBAR16(rcompctl[i]) = (MCHBAR16(rcompctl[i]) & |
| ~0xf000) | (reg16 << 12); |
| MCHBAR8(rcompctl[i]+4) = rcompstr2[s->dimm_config[0]]; |
| MCHBAR16(rcompctl[i]+0xe) = rcompscomp2[s->dimm_config[0]]; |
| MCHBAR8(rcompctl[i]+0x14) = (MCHBAR8(rcompctl[i]+0x14) & |
| ~0x3) | rcompdelay2[s->dimm_config[0]]; |
| } |
| |
| MCHBAR16(rcompctl[i]+0x16) = MCHBAR16(rcompctl[i]+0x16) & ~0x7f7f; |
| MCHBAR16(rcompctl[i]+0x18) = MCHBAR16(rcompctl[i]+0x18) & ~0x3f3f; |
| MCHBAR16(rcompctl[i]+0x1a) = MCHBAR16(rcompctl[i]+0x1a) & ~0x3f3f; |
| MCHBAR16(rcompctl[i]+0x1c) = MCHBAR16(rcompctl[i]+0x1c) & ~0x3f3f; |
| MCHBAR16(rcompctl[i]+0x1e) = MCHBAR16(rcompctl[i]+0x1e) & ~0x3f3f; |
| } |
| |
| MCHBAR8(0x45a) = (MCHBAR8(0x45a) & ~0x3f) | 0x36; |
| MCHBAR8(0x462) = (MCHBAR8(0x462) & ~0x3f) | 0x36; |
| |
| for (i = 0; i < 7; i++) { |
| if (i == 1) |
| continue; |
| MCHBAR8(rcompctl[i]) = MCHBAR8(rcompctl[i]) & ~0x60; |
| MCHBAR16(rcompctl[i]+2) = MCHBAR16(rcompctl[i]+2) & ~0x706; |
| MCHBAR16(rcompctl[i]+0xa) = MCHBAR16(rcompctl[i]+0xa) & ~0x7f7f; |
| MCHBAR16(rcompctl[i]+0x12) = MCHBAR16(rcompctl[i]+0x12) & ~0x3f3f; |
| MCHBAR16(rcompctl[i]+0x24) = MCHBAR16(rcompctl[i]+0x24) & ~0x1f1f; |
| MCHBAR8(rcompctl[i]+0x26) = MCHBAR8(rcompctl[i]+0x26) & ~0x1f; |
| } |
| |
| MCHBAR16(0x45a) = MCHBAR16(0x45a) & ~0xffc0; |
| MCHBAR16(0x45c) = MCHBAR16(0x45c) & ~0xf; |
| MCHBAR16(0x462) = MCHBAR16(0x462) & ~0xffc0; |
| MCHBAR16(0x464) = MCHBAR16(0x464) & ~0xf; |
| |
| for (i = 0; i < 7; i++) { |
| if (i == 1) |
| continue; |
| MCHBAR16(rcompctl[i]+0x10) = rcompf[i]; |
| MCHBAR16(rcompctl[i]+0x20) = 0x1219; |
| MCHBAR16(rcompctl[i]+0x22) = 0x000C; |
| } |
| |
| MCHBAR32(0x164) = (MCHBAR32(0x164) & ~0x1f1f1f) | 0x0c1219; |
| MCHBAR16(0x4b0) = (MCHBAR16(0x4b0) & ~0x1f00) | 0x1200; |
| MCHBAR8(0x4b0) = (MCHBAR8(0x4b0) & ~0x1f) | 0x12; |
| MCHBAR32(0x138) = 0x007C9007; |
| MCHBAR32(0x16c) = rcomp1; |
| MCHBAR16(0x17a) = 0x1f7f; |
| MCHBAR32(0x134) = rcomp2; |
| MCHBAR16(0x170) = (MCHBAR16(0x170) & ~0xf) | 1; |
| MCHBAR16(0x178) = 0x134; |
| MCHBAR32(0x130) = 0x4C293600; |
| MCHBAR8(0x133) = (MCHBAR8(0x133) & ~0x44) | (1 << 6) | (1 << 2); |
| MCHBAR16(0x4b0) = MCHBAR16(0x4b0) & ~(1 << 13); |
| MCHBAR8(0x4b0) = MCHBAR8(0x4b0) & ~(1 << 5); |
| |
| for (i = 0; i < 7; i++) { |
| if (i == 1) |
| continue; |
| MCHBAR8(rcompctl[i]+2) = MCHBAR8(rcompctl[i]) & ~0x71; |
| } |
| |
| if ((MCHBAR32(0x130) & (1 << 30)) == 0) { |
| MCHBAR8(0x130) = MCHBAR8(0x130) | 0x1; |
| while ((MCHBAR8(0x130) & 0x1) != 0); |
| |
| reg32 = MCHBAR32(0x13c); |
| rcompp = (u8) ((reg32 & ~(1 << 31)) >> 24); |
| rcompn = (u8) ((reg32 & ~(0xff800000)) >> 16); |
| |
| for (i = 0; i < 7; i++) { |
| if (i == 1) |
| continue; |
| srup = (MCHBAR8(rcompctl[i]+1) & 0xc0) >> 6; |
| srun = (MCHBAR8(rcompctl[i]+1) & 0x30) >> 4; |
| reg16 = (u16)(rcompp - (1 << (srup + 1))) << 8; |
| MCHBAR16(rcompctl[i]+0x16) = (MCHBAR16(rcompctl[i]+0x16) |
| & ~0x7f00) | reg16; |
| reg16 = (u16)(rcompn - (1 << (srun + 1))); |
| MCHBAR8(rcompctl[i]+0x16) = (MCHBAR8(rcompctl[i]+0x16) & |
| ~0x7f) | (u8)reg16; |
| } |
| |
| reg8 = rcompp - (1 << (srup + 1)); |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srup)) { |
| MCHBAR8(rcompctl[0]+0x18+i) = |
| (MCHBAR8(rcompctl[0]+0x18+i) & ~0x3f) | |
| rcomplut[j][0]; |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srup)) { |
| if (s->dimm_config[0] < 3 || s->dimm_config[0] == 5) { |
| MCHBAR8(rcompctl[2]+0x18+i) = |
| (MCHBAR8(rcompctl[2]+0x18+i) & ~0x3f) | |
| rcomplut[j][10]; |
| } |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srup)) { |
| MCHBAR8(rcompctl[3]+0x18+i) = |
| (MCHBAR8(rcompctl[3]+0x18+i) & ~0x3f) | |
| rcomplut[j][6]; |
| MCHBAR8(rcompctl[4]+0x18+i) = |
| (MCHBAR8(rcompctl[4]+0x18+i) & ~0x3f) | |
| rcomplut[j][6]; |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srup)) { |
| MCHBAR8(rcompctl[5]+0x18+i) = |
| (MCHBAR8(rcompctl[5]+0x18+i) & ~0x3f) | |
| rcomplut[j][8]; |
| MCHBAR8(rcompctl[6]+0x18+i) = |
| (MCHBAR8(rcompctl[6]+0x18+i) & ~0x3f) | |
| rcomplut[j][8]; |
| } |
| |
| reg8 = rcompn - (1 << (srun + 1)); |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srun)) { |
| MCHBAR8(rcompctl[0]+0x1c+i) = |
| (MCHBAR8(rcompctl[0]+0x1c+i) & ~0x3f) | |
| rcomplut[j][1]; |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srun)) { |
| if (s->dimm_config[0] < 3 || s->dimm_config[0] == 5) { |
| MCHBAR8(rcompctl[2]+0x1c+i) = |
| (MCHBAR8(rcompctl[2]+0x1c+i) & ~0x3f) | |
| rcomplut[j][11]; |
| } |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srun)) { |
| MCHBAR8(rcompctl[3]+0x1c+i) = |
| (MCHBAR8(rcompctl[3]+0x1c+i) & ~0x3f) | |
| rcomplut[j][7]; |
| MCHBAR8(rcompctl[4]+0x1c+i) = |
| (MCHBAR8(rcompctl[4]+0x1c+i) & ~0x3f) | |
| rcomplut[j][7]; |
| } |
| |
| for (i = 0, j = reg8; i < 4; i++, j += (1 << srun)) { |
| MCHBAR8(rcompctl[5]+0x1c+i) = |
| (MCHBAR8(rcompctl[5]+0x1c+i) & ~0x3f) | |
| rcomplut[j][9]; |
| MCHBAR8(rcompctl[6]+0x1c+i) = |
| (MCHBAR8(rcompctl[6]+0x1c+i) & ~0x3f) | |
| rcomplut[j][9]; |
| } |
| } |
| MCHBAR8(0x130) = MCHBAR8(0x130) | 1; |
| } |
| |
| static void sdram_odt(struct sysinfo *s) |
| { |
| u8 rankindex = 0; |
| |
| static const u16 odt294[16] = { |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0044, 0x1111, 0x0000, 0x1111, |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0044, 0x1111, 0x0000, 0x1111 |
| }; |
| static const u16 odt298[16] = { |
| 0x0000, 0x0011, 0x0000, 0x0011, |
| 0x0000, 0x4444, 0x0000, 0x4444, |
| 0x0000, 0x0000, 0x0000, 0x0000, |
| 0x0000, 0x4444, 0x0000, 0x4444 |
| }; |
| |
| switch (s->dimms[0].ranks) { |
| case 0: |
| if (s->dimms[1].ranks == 0) { |
| rankindex = 0; |
| } else if (s->dimms[1].ranks == 1) { |
| rankindex = 4; |
| } else if (s->dimms[1].ranks == 2) { |
| rankindex = 12; |
| } |
| break; |
| case 1: |
| if (s->dimms[1].ranks == 0) { |
| rankindex = 1; |
| } else if (s->dimms[1].ranks == 1) { |
| rankindex = 5; |
| } else if (s->dimms[1].ranks == 2) { |
| rankindex = 13; |
| } |
| break; |
| case 2: |
| if (s->dimms[1].ranks == 0) { |
| rankindex = 3; |
| } else if (s->dimms[1].ranks == 1) { |
| rankindex = 7; |
| } else if (s->dimms[1].ranks == 2) { |
| rankindex = 15; |
| } |
| break; |
| } |
| |
| MCHBAR16(0x298) = odt298[rankindex]; |
| MCHBAR16(0x294) = odt294[rankindex]; |
| } |
| |
| static void sdram_mmap(struct sysinfo *s) |
| { |
| static const u32 w260[7] = {0, 0x400001, 0xc00001, 0x500000, 0xf00000, |
| 0xc00001, 0xf00000}; |
| static const u32 w208[7] = {0, 0x10000, 0x1010000, 0x10001, 0x1010101, |
| 0x1010000, 0x1010101}; |
| static const u32 w200[7] = {0, 0, 0, 0x20002, 0x40002, 0, 0x40002}; |
| static const u32 w204[7] = {0, 0x20002, 0x40002, 0x40004, 0x80006, |
| 0x40002, 0x80006}; |
| |
| static const u16 tolud[7] = {0x800, 0x800, 0x1000, 0x1000, 0x2000, |
| 0x1000, 0x2000}; |
| static const u16 tom[7] = {0x2, 0x2, 0x4, 0x4, 0x8, 0x4, 0x8}; |
| static const u16 touud[7] = {0x80, 0x80, 0x100, 0x100, 0x200, 0x100, |
| 0x200}; |
| static const u32 gbsm[7] = {0x8000000, 0x8000000, 0x10000000, 0x8000000, |
| 0x20000000, 0x10000000, 0x20000000}; |
| static const u32 bgsm[7] = {0x8000000, 0x8000000, 0x10000000, 0x8000000, |
| 0x20000000, 0x10000000, 0x20000000}; |
| static const u32 tsegmb[7] = {0x8000000, 0x8000000, 0x10000000, |
| 0x8000000, 0x20000000, 0x10000000, |
| 0x20000000}; |
| |
| if ((s->dimm_config[0] < 3) && rank_is_populated(s->dimms, 0, 0)) { |
| if (s->dimms[0].sides > 1) { |
| // 2R/NC |
| MCHBAR32(0x260) = (MCHBAR32(0x260) & ~0x1) | 0x300001; |
| MCHBAR32(0x208) = 0x101; |
| MCHBAR32(0x200) = 0x40002; |
| MCHBAR32(0x204) = w204[s->dimm_config[0]]; |
| } else { |
| // 1R/NC |
| MCHBAR32(0x260) = (MCHBAR32(0x260) & ~0x1) | 0x100001; |
| MCHBAR32(0x208) = 0x1; |
| MCHBAR32(0x200) = 0x20002; |
| MCHBAR32(0x204) = w204[s->dimm_config[0]]; |
| } |
| } else if ((s->dimm_config[0] == 5) && rank_is_populated(s->dimms, 0, 0)) { |
| |
| MCHBAR32(0x260) = (MCHBAR32(0x260) & ~0x1) | 0x300001; |
| MCHBAR32(0x208) = 0x101; |
| MCHBAR32(0x200) = 0x40002; |
| MCHBAR32(0x204) = 0x40004; |
| } else { |
| MCHBAR32(0x260) = (MCHBAR32(0x260) & ~0x1) | w260[s->dimm_config[0]]; |
| MCHBAR32(0x208) = w208[s->dimm_config[0]]; |
| MCHBAR32(0x200) = w200[s->dimm_config[0]]; |
| MCHBAR32(0x204) = w204[s->dimm_config[0]]; |
| } |
| pci_write_config16(PCI_DEV(0, 0, 0), 0xb0, tolud[s->dimm_config[0]]); |
| pci_write_config16(PCI_DEV(0, 0, 0), 0xa0, tom[s->dimm_config[0]]); |
| pci_write_config16(PCI_DEV(0, 0, 0), 0xa2, touud[s->dimm_config[0]]); |
| pci_write_config32(PCI_DEV(0, 0, 0), 0xa4, gbsm[s->dimm_config[0]]); |
| pci_write_config32(PCI_DEV(0, 0, 0), 0xa8, bgsm[s->dimm_config[0]]); |
| pci_write_config32(PCI_DEV(0, 0, 0), 0xac, tsegmb[s->dimm_config[0]]); |
| } |
| |
| #if 1 |
| static void hpet_udelay(u32 del) |
| { |
| u32 start, finish, now; |
| |
| del *= 15; /* now in usec */ |
| |
| start = HPET32(0xf0); |
| finish = start + del; |
| while (1) { |
| now = HPET32(0xf0); |
| if (finish > start) { |
| if (now >= finish) |
| break; |
| } else { |
| if ((now < start) && (now >= finish)) { |
| break; |
| } |
| } |
| } |
| } |
| #endif |
| |
| static u8 sdram_checkrcompoverride(void) |
| { |
| u32 xcomp; |
| u8 aa, bb, a, b, c, d; |
| |
| xcomp = MCHBAR32(0x13c); |
| a = (u8)((xcomp & 0x7f000000) >> 24); |
| b = (u8)((xcomp & 0x7f0000) >> 16); |
| c = (u8)((xcomp & 0x3f00) >> 8); |
| d = (u8)(xcomp & 0x3f); |
| |
| if (a > b) { |
| aa = a - b; |
| } else { |
| aa = b - a; |
| } |
| if (c > d) { |
| bb = c - d; |
| } else { |
| bb = d - c; |
| } |
| if ((aa > 18) || (bb > 7) || |
| (a <= 5) || (b <= 5) || (c <= 5) || (d <= 5) || |
| (a >= 0x7a) || (b >= 0x7a) || (c >= 0x3a) || (d >= 0x3a)) { |
| MCHBAR32(0x140) = 0x9718a729; |
| return 1; |
| } |
| return 0; |
| } |
| |
| static void sdram_rcompupdate(struct sysinfo *s) |
| { |
| u8 i, ok; |
| u32 reg32a, reg32b; |
| |
| ok = 0; |
| MCHBAR8(0x170) = MCHBAR8(0x170) & ~(1 << 3); |
| MCHBAR8(0x130) = MCHBAR8(0x130) & ~(1 << 7); |
| for (i = 0; i < 3; i++) { |
| MCHBAR8(0x130) = MCHBAR8(0x130) | 1; |
| hpet_udelay(1000); |
| while ((MCHBAR8(0x130) & 0x1) != 0); |
| ok |= sdram_checkrcompoverride(); |
| } |
| if (!ok) { |
| reg32a = MCHBAR32(0x13c); |
| reg32b = (reg32a >> 16) & 0x0000ffff; |
| reg32a = ((reg32a << 16) & 0xffff0000) | reg32b; |
| reg32a |= (1 << 31) | (1 << 15); |
| MCHBAR32(0x140) = reg32a; |
| } |
| MCHBAR8(0x130) = MCHBAR8(0x130) | 1; |
| hpet_udelay(1000); |
| while ((MCHBAR8(0x130) & 0x1) != 0); |
| } |
| |
| static void __attribute__((noinline)) |
| sdram_jedec(struct sysinfo *s, u8 rank, u8 jmode, u16 jval) |
| { |
| u32 reg32; |
| |
| reg32 = jval << 3; |
| reg32 |= rank * 0x8000000; |
| MCHBAR8(0x271) = (MCHBAR8(0x271) & ~0x3e) | jmode; |
| read32((void *)reg32); |
| barrier(); |
| hpet_udelay(1); // 1us |
| } |
| |
| static void sdram_zqcl(struct sysinfo *s) |
| { |
| if (s->boot_path == BOOT_PATH_RESUME) { |
| MCHBAR32(0x260) = MCHBAR32(0x260) | (1 << 27); |
| MCHBAR8(0x271) = (MCHBAR8(0x271) & ~0xe) | NORMAL_OP_CMD; |
| MCHBAR8(0x271) = MCHBAR8(0x271) & ~0x30; |
| MCHBAR32(0x268) = (MCHBAR32(0x268) & ~((1 << 30) | (1 << 31))) | |
| (1 << 30) | (1 << 31); |
| } |
| } |
| |
| static void sdram_jedecinit(struct sysinfo *s) |
| { |
| u8 r, i, ch; |
| u16 reg16, mrs, rttnom; |
| struct jedeclist { |
| char debug[15]; |
| u8 cmd; |
| u16 val; |
| }; |
| |
| static const struct jedeclist jedec[12] = { |
| { " NOP ", NOP_CMD, 0 }, |
| { " PRE CHARGE ", PRE_CHARGE_CMD, 0 }, |
| { " EMRS2 ", EMRS2_CMD, 0 }, |
| { " EMRS3 ", EMRS3_CMD, 0 }, |
| { " EMRS1 ", EMRS1_CMD, 0 }, |
| { " DLL RESET ", MRS_CMD, (1 << 8) }, |
| { " PRE CHARGE ", PRE_CHARGE_CMD, 0 }, |
| { " AUTOREFRESH", CBR_CMD, 0 }, |
| { " AUTOREFRESH", CBR_CMD, 0 }, |
| { " INITIALISE ", MRS_CMD, 0 }, |
| { " EMRS1 OCD ", EMRS1_CMD, (1 << 9) | (1 << 8) | (1 << 7) }, |
| { " EMRS1 EXIT ", EMRS1_CMD, 0 } |
| }; |
| |
| mrs = (s->selected_timings.CAS << 4) | |
| ((s->selected_timings.tWR - 1) << 9) | (1 << 3) | (1 << 1) | 1; |
| rttnom = (1 << 2); |
| if (rank_is_populated(s->dimms, 0, 0) && rank_is_populated(s->dimms, 0, 2)) { |
| rttnom |= (1 << 6); |
| } |
| |
| hpet_udelay(200); // 200us |
| reg16 = 0; |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| for (i = 0; i < 12; i++) { |
| PRINTK_DEBUG("Rank:%d Jedec:%14s...", r, jedec[i].debug); |
| reg16 = jedec[i].val; |
| switch (jedec[i].cmd) { |
| case EMRS1_CMD: |
| reg16 |= rttnom; |
| break; |
| case MRS_CMD: |
| reg16 |= mrs; |
| break; |
| default: |
| break; |
| } |
| sdram_jedec(s, r, jedec[i].cmd, reg16); |
| PRINTK_DEBUG("done\n"); |
| } |
| } |
| } |
| |
| static void sdram_misc(struct sysinfo *s) |
| { |
| u32 reg32; |
| |
| reg32 = 0; |
| reg32 |= (0x4 << 13); |
| reg32 |= (0x6 << 8); |
| MCHBAR32(0x274) = (MCHBAR32(0x274) & ~0x3ff00) | reg32; |
| MCHBAR8(0x274) = MCHBAR8(0x274) & ~(1 << 7); |
| MCHBAR8(0x26c) = MCHBAR8(0x26c) | 1; |
| if (s->boot_path != BOOT_PATH_RESUME) { |
| MCHBAR8(0x271) = (MCHBAR8(0x271) & ~0xe) | NORMAL_OP_CMD; |
| MCHBAR8(0x271) = MCHBAR8(0x271) & ~0x30; |
| } else { |
| sdram_zqcl(s); |
| } |
| } |
| |
| static void sdram_checkreset(void) |
| { |
| u8 pmcon2, pmcon3, reset; |
| |
| pmcon2 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); |
| pmcon3 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa4); |
| pmcon3 &= ~0x2; |
| if (pmcon2 & 0x80) { |
| pmcon2 &= ~0x80; |
| reset = 1; |
| } else { |
| pmcon2 |= 0x80; |
| reset = 0; |
| } |
| if (pmcon2 & 0x4) { |
| pmcon2 |= 0x4; |
| pmcon3 = (pmcon3 & ~0x30) | 0x30; |
| pmcon3 |= (1 << 3); |
| } |
| pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, pmcon2); |
| pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa4, pmcon3); |
| if (reset) |
| full_reset(); |
| } |
| |
| static void sdram_dradrb(struct sysinfo *s) |
| { |
| u8 i, reg8, ch, r; |
| u32 reg32, ind, c0dra, c0drb, dra; |
| u16 addr; |
| i = 0; |
| static const u8 dratab[2][2][2][4] = |
| {{ |
| { |
| {0xff, 0xff, 0xff, 0xff}, |
| {0xff, 0x00, 0x02, 0xff} |
| }, |
| { |
| {0xff, 0x01, 0xff, 0xff}, |
| {0xff, 0x03, 0xff, 0x06} |
| } |
| }, |
| { |
| { |
| {0xff, 0xff, 0xff, 0xff}, |
| {0xff, 0x04, 0x06, 0x08} |
| }, |
| { |
| {0xff, 0xff, 0xff, 0xff}, |
| {0x05, 0x07, 0x09, 0xff} |
| } |
| }}; |
| |
| static const u8 dradrb[10][6] = { |
| //Row Col Bank Width DRB |
| {0x01, 0x01, 0x00, 0x08, 0, 0x04}, |
| {0x01, 0x00, 0x00, 0x10, 0, 0x02}, |
| {0x02, 0x01, 0x00, 0x08, 1, 0x08}, |
| {0x01, 0x01, 0x00, 0x10, 1, 0x04}, |
| {0x01, 0x01, 0x01, 0x08, 1, 0x08}, |
| {0x00, 0x01, 0x01, 0x10, 1, 0x04}, |
| {0x02, 0x01, 0x01, 0x08, 2, 0x10}, |
| {0x01, 0x01, 0x01, 0x10, 2, 0x08}, |
| {0x03, 0x01, 0x01, 0x08, 3, 0x20}, |
| {0x02, 0x01, 0x01, 0x10, 3, 0x10}, |
| }; |
| |
| reg32 = 0; |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| i = r / 2; |
| PRINTK_DEBUG("RANK %d PRESENT\n", r); |
| dra = dratab[s->dimms[i].banks] |
| [s->dimms[i].width] |
| [s->dimms[i].cols - 9] |
| [s->dimms[i].rows - 12]; |
| |
| if (s->dimms[i].banks == 1) { |
| dra |= (1 << 7); |
| } |
| reg32 |= (dra << (r*8)); |
| } |
| MCHBAR32(0x208) = reg32; |
| c0dra = reg32; |
| PRINTK_DEBUG("C0DRA = 0x%08x\n", c0dra); |
| |
| reg32 = 0; |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| reg32 |= (1 << r); |
| } |
| reg8 = (u8)(reg32 << 4) & 0xf0; |
| MCHBAR8(0x262) = (MCHBAR8(0x262) & ~0xf0) | reg8; |
| if (ONLY_DIMMA_IS_POPULATED(s->dimms, 0) || |
| ONLY_DIMMB_IS_POPULATED(s->dimms, 0)) { |
| MCHBAR8(0x260) = MCHBAR8(0x260) | 1; |
| } |
| |
| addr = 0x200; |
| c0drb = 0; |
| FOR_EACH_RANK(ch, r) { |
| if (rank_is_populated(s->dimms, ch, r)) { |
| ind = (c0dra >> (8*r)) & 0x7f; |
| c0drb = (u16)(c0drb + dradrb[ind][5]); |
| s->channel_capacity[0] += dradrb[ind][5] << 6; |
| } |
| MCHBAR16(addr) = c0drb; |
| addr += 2; |
| } |
| printk(BIOS_DEBUG, "Total memory = %dMB\n", s->channel_capacity[0]); |
| } |
| |
| static u8 sampledqs(u32 dqshighaddr, u32 strobeaddr, u8 highlow, u8 count) |
| { |
| u8 dqsmatches = 1; |
| while (count--) { |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) & ~0x2; |
| hpet_udelay(1); |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x2; |
| hpet_udelay(1); |
| barrier(); |
| read32((void *)strobeaddr); |
| barrier(); |
| hpet_udelay(1); |
| |
| if (((MCHBAR8(dqshighaddr) & 0x40) >> 6) != highlow) { |
| dqsmatches = 0; |
| } |
| } |
| |
| return dqsmatches; |
| } |
| |
| static void rcvenclock(u8 *coarse, u8 *medium, u8 bytelane) |
| { |
| if (*medium < 3) { |
| (*medium)++; |
| MCHBAR16(0x58c) = (MCHBAR16(0x58c) & (u16)(~(0x3 << (bytelane*2)))) |
| | (*medium << (bytelane*2)); |
| } else { |
| *medium = 0; |
| (*coarse)++; |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) | (*coarse << 16); |
| MCHBAR16(0x58c) = (MCHBAR16(0x58c) & (u16)(~0x3 << (bytelane*2))) |
| | (*medium << (bytelane*2)); |
| } |
| } |
| |
| static void sdram_rcven(struct sysinfo *s) |
| { |
| u8 curcoarse, savecoarse; |
| u8 curmedium, savemedium; |
| u8 pi, savepi; |
| u8 bytelane; |
| u8 bytelanecoarse[8] = { 0 }; |
| u8 minbytelanecoarse = 0xff; |
| u8 bytelaneoffset; |
| u8 maxbytelane = 8; |
| /* Since dra/drb is already set up we know that at address 0x00000000 |
| we will always find the first available rank */ |
| u32 strobeaddr = 0; |
| u32 dqshighaddr; |
| |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) & ~0xc; |
| MCHBAR8(0x5dc) = MCHBAR8(0x5dc) & ~0x80; |
| |
| PRINTK_DEBUG("rcven 0\n"); |
| for (bytelane = 0; bytelane < maxbytelane; bytelane++) { |
| PRINTK_DEBUG("rcven bytelane %d\n", bytelane); |
| //trylaneagain: |
| dqshighaddr = 0x561 + (bytelane << 2); |
| |
| curcoarse = s->selected_timings.CAS + 1; |
| pi = 0; |
| curmedium = 0; |
| |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) | (curcoarse << 16); |
| MCHBAR16(0x58c) = (MCHBAR16(0x58c) & (u16)(~(0x3 << (bytelane*2)))) |
| | (curmedium << (bytelane*2)); |
| MCHBAR8(0x560+bytelane*4) = MCHBAR8(0x560+bytelane*4) & ~0x3f; |
| |
| savecoarse = curcoarse; |
| savemedium = curmedium; |
| savepi = pi; |
| |
| PRINTK_DEBUG("rcven 0.1\n"); |
| |
| //MCHBAR16(0x588) = (MCHBAR16(0x588) & (u16)~(0x3 << (bytelane*2))) | (1 << (bytelane*2)); // XXX comment out |
| |
| while (sampledqs(dqshighaddr, strobeaddr, 0, 3) == 0) { |
| //printk(BIOS_DEBUG, "coarse=%d medium=%d\n", curcoarse, curmedium); |
| rcvenclock(&curcoarse, &curmedium, bytelane); |
| if (curcoarse > 0xf) { |
| PRINTK_DEBUG("Error: coarse > 0xf\n"); |
| //goto trylaneagain; |
| break; |
| } |
| } |
| PRINTK_DEBUG("rcven 0.2\n"); |
| |
| savecoarse = curcoarse; |
| savemedium = curmedium; |
| rcvenclock(&curcoarse, &curmedium, bytelane); |
| |
| while (sampledqs(dqshighaddr, strobeaddr, 1, 3) == 0) { |
| savecoarse = curcoarse; |
| savemedium = curmedium; |
| rcvenclock(&curcoarse, &curmedium, bytelane); |
| if (curcoarse > 0xf) { |
| PRINTK_DEBUG("Error: coarse > 0xf\n"); |
| //goto trylaneagain; |
| break; |
| } |
| } |
| |
| PRINTK_DEBUG("rcven 0.3\n"); |
| curcoarse = savecoarse; |
| curmedium = savemedium; |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) | (curcoarse << 16); |
| MCHBAR16(0x58c) = (MCHBAR16(0x58c) & (u16)(~(0x3 << bytelane*2))) |
| | (curmedium << (bytelane*2)); |
| |
| while (sampledqs(dqshighaddr, strobeaddr, 1, 3) == 0) { |
| savepi = pi; |
| pi++; |
| if (pi > s->maxpi) { |
| //if (s->nodll) { |
| pi = savepi = s->maxpi; |
| break; |
| //} |
| } |
| MCHBAR8(0x560 + bytelane*4) = (MCHBAR8(0x560 + bytelane*4) |
| & ~0x3f) | (pi << s->pioffset); |
| } |
| PRINTK_DEBUG("rcven 0.4\n"); |
| |
| pi = savepi; |
| MCHBAR8(0x560 + bytelane*4) = (MCHBAR8(0x560 + bytelane*4) & ~0x3f) |
| | (pi << s->pioffset); |
| rcvenclock(&curcoarse, &curmedium, bytelane); |
| if (sampledqs(dqshighaddr, strobeaddr, 1, 1) == 0) { |
| PRINTK_DEBUG("Error: DQS not high\n"); |
| //goto trylaneagain; |
| } |
| PRINTK_DEBUG("rcven 0.5\n"); |
| while (sampledqs(dqshighaddr, strobeaddr, 0, 3) == 0) { |
| curcoarse--; |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) |
| | (curcoarse << 16); |
| if (curcoarse == 0) { |
| PRINTK_DEBUG("Error: DQS did not hit 0\n"); |
| break; |
| } |
| } |
| |
| PRINTK_DEBUG("rcven 0.6\n"); |
| rcvenclock(&curcoarse, &curmedium, bytelane); |
| s->pi[bytelane] = pi; |
| bytelanecoarse[bytelane] = curcoarse; |
| } |
| |
| PRINTK_DEBUG("rcven 1\n"); |
| |
| bytelane = maxbytelane; |
| do { |
| bytelane--; |
| if (minbytelanecoarse > bytelanecoarse[bytelane]) { |
| minbytelanecoarse = bytelanecoarse[bytelane]; |
| } |
| } while (bytelane != 0); |
| |
| bytelane = maxbytelane; |
| do { |
| bytelane--; |
| bytelaneoffset = bytelanecoarse[bytelane] - minbytelanecoarse; |
| MCHBAR16(0x5fa) = (MCHBAR16(0x5fa) & (u16)(~(0x3 << (bytelane*2)))) |
| | (bytelaneoffset << (bytelane*2)); |
| } while (bytelane != 0); |
| |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0xf0000) | (minbytelanecoarse << 16); |
| |
| s->coarsectrl = minbytelanecoarse; |
| s->coarsedelay = MCHBAR16(0x5fa); |
| s->mediumphase = MCHBAR16(0x58c); |
| s->readptrdelay = MCHBAR16(0x588); |
| |
| PRINTK_DEBUG("rcven 2\n"); |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) & ~0xe; |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x2; |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x4; |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x8; |
| |
| MCHBAR8(0x5dc) = MCHBAR8(0x5dc) | 0x80; |
| MCHBAR8(0x5dc) = MCHBAR8(0x5dc) & ~0x80; |
| MCHBAR8(0x5dc) = MCHBAR8(0x5dc) | 0x80; |
| PRINTK_DEBUG("rcven 3\n"); |
| } |
| |
| static void sdram_mmap_regs(struct sysinfo *s) |
| { |
| bool reclaim; |
| u32 tsegsize; |
| u32 mmiosize; |
| u32 tom, tolud, touud, reclaimbase, reclaimlimit; |
| u32 gfxbase, gfxsize, gttbase, gttsize, tsegbase; |
| u16 ggc; |
| u16 ggc_to_uma[10] = { 0, 1, 4, 8, 16, 32, 48, 64, 128, 256 }; |
| u8 ggc_to_gtt[4] = { 0, 1, 0, 0 }; |
| |
| reclaimbase = 0; |
| reclaimlimit = 0; |
| ggc = pci_read_config16(PCI_DEV(0,0,0), GGC); |
| printk(BIOS_DEBUG, "GGC = 0x%04x\n", ggc); |
| gfxsize = ggc_to_uma[(ggc & 0xf0) >> 4]; |
| gttsize = ggc_to_gtt[(ggc & 0x300) >> 8]; |
| tom = s->channel_capacity[0]; |
| |
| /* with GTT always being 1M, TSEG 1M is the only setting that can |
| be covered by SMRR which has alignment requirements. */ |
| tsegsize = 0x1; |
| mmiosize = 0x400; // 1GB |
| |
| reclaim = false; |
| tolud = MIN(0x1000 - mmiosize, tom); |
| if ((tom - tolud) > 0x40) { |
| reclaim = true; |
| } |
| if (reclaim) { |
| tolud = tolud & ~0x3f; |
| tom = tom & ~0x3f; |
| reclaimbase = MAX(0x1000, tom); |
| reclaimlimit = reclaimbase + (MIN(0x1000, tom) - tolud) - 0x40; |
| } |
| touud = tom; |
| if (reclaim) { |
| touud = reclaimlimit + 0x40; |
| } |
| |
| gfxbase = tolud - gfxsize; |
| gttbase = gfxbase - gttsize; |
| tsegbase = gttbase - tsegsize; |
| |
| /* Program the regs */ |
| pci_write_config16(PCI_DEV(0,0,0), TOLUD, (u16)(tolud << 4)); |
| pci_write_config16(PCI_DEV(0,0,0), TOM, (u16)(tom >> 6)); |
| if (reclaim) { |
| pci_write_config16(PCI_DEV(0,0,0), 0x98, (u16)(reclaimbase >> 6)); |
| pci_write_config16(PCI_DEV(0,0,0), 0x9a, (u16)(reclaimlimit >> 6)); |
| } |
| pci_write_config16(PCI_DEV(0,0,0), TOUUD, (u16)(touud)); |
| pci_write_config32(PCI_DEV(0,0,0), GBSM, gfxbase << 20); |
| pci_write_config32(PCI_DEV(0,0,0), BGSM, gttbase << 20); |
| pci_write_config32(PCI_DEV(0,0,0), TSEG, tsegbase << 20); |
| |
| u8 reg8 = pci_read_config8(PCI_DEV(0, 0, 0), ESMRAMC); |
| reg8 &= ~0x7; |
| reg8 |= (0 << 1) | (1 << 0); /* 1M and TSEG_Enable */ |
| pci_write_config8(PCI_DEV(0, 0, 0), ESMRAMC, reg8); |
| |
| printk(BIOS_DEBUG, "GBSM (igd) = verified %08x (written %08x)\n", |
| pci_read_config32(PCI_DEV(0,0,0), GBSM), gfxbase << 20); |
| printk(BIOS_DEBUG, "BGSM (gtt) = verified %08x (written %08x)\n", |
| pci_read_config32(PCI_DEV(0,0,0), BGSM), gttbase << 20); |
| printk(BIOS_DEBUG, "TSEG (smm) = verified %08x (written %08x)\n", |
| pci_read_config32(PCI_DEV(0,0,0), TSEG), tsegbase << 20); |
| } |
| |
| static void sdram_enhancedmode(struct sysinfo *s) |
| { |
| u8 reg8, ch, r, j, i; |
| u32 mask32, reg32; |
| MCHBAR8(0x246) = MCHBAR8(0x246) | 1; |
| MCHBAR8(0x269 + 3) = MCHBAR8(0x269 + 3) | 1; |
| mask32 = (0x1f << 15) | (0x1f << 10) | (0x1f << 5) | 0x1f; |
| reg32 = (0x1e << 15) | (0x10 << 10) | (0x1e << 5) | 0x10; |
| MCHBAR32(0x120) = (MCHBAR32(0x120) & ~mask32) | reg32; |
| MCHBAR8(0x288 + 1) = 0x2; |
| MCHBAR16(0x288 + 2) = 0x0804; |
| MCHBAR16(0x288 + 4) = 0x2010; |
| MCHBAR8(0x288 + 6) = 0x40; |
| MCHBAR16(0x288 + 8) = 0x091c; |
| MCHBAR8(0x288 + 10) = 0xf2; |
| MCHBAR8(0x241) = MCHBAR8(0x241) | 1; |
| MCHBAR8(0x243) = MCHBAR8(0x243) | 1; |
| MCHBAR16(0x272) = MCHBAR16(0x272) | 0x100; |
| |
| reg8 = pci_read_config8(PCI_DEV(0,0,0), 0xf0); |
| pci_write_config8(PCI_DEV(0,0,0), 0xf0, reg8 | 1); |
| MCHBAR32(0xfa0) = 0x00000002; |
| MCHBAR32(0xfa4) = 0x20310002; |
| MCHBAR32(0x24) = 0x02020302; |
| MCHBAR32(0x30) = 0x001f1806; |
| MCHBAR32(0x34) = 0x01102800; |
| MCHBAR32(0x38) = 0x07000000; |
| MCHBAR32(0x3c) = 0x01014010; |
| MCHBAR32(0x40) = 0x0f038000; |
| reg8 = pci_read_config8(PCI_DEV(0,0,0), 0xf0); |
| pci_write_config8(PCI_DEV(0,0,0), 0xf0, reg8 & ~1); |
| |
| u32 nranks, curranksize, maxranksize, dra; |
| u8 rankmismatch; |
| static const u8 drbtab[10] = { 0x4, 0x2, 0x8, 0x4, 0x8, 0x4, 0x10, 0x8, |
| 0x20, 0x10 }; |
| |
| nranks = 0; |
| curranksize = 0; |
| maxranksize = 0; |
| rankmismatch = 0; |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| nranks++; |
| dra = (u8) ((MCHBAR32(0x208) >> (8*r)) & 0x7f); |
| curranksize = drbtab[dra]; |
| if (maxranksize == 0) { |
| maxranksize = curranksize; |
| } |
| if (curranksize != maxranksize) { |
| rankmismatch = 1; |
| } |
| } |
| |
| reg8 = 0; |
| switch (nranks) { |
| case 4: |
| if (rankmismatch) { |
| reg8 = 0x64; |
| } else { |
| reg8 = 0xa4; |
| } |
| break; |
| case 1: |
| case 3: |
| reg8 = 0x64; |
| break; |
| case 2: |
| if (rankmismatch) { |
| reg8 = 0x64; |
| } else { |
| reg8 = 0x24; |
| } |
| break; |
| default: |
| die("Invalid number of ranks found, halt\n"); |
| break; |
| } |
| MCHBAR8(0x111) = (MCHBAR8(0x111) & ~0xfc) | (reg8 & 0xfc); |
| MCHBAR32(0xd0) = MCHBAR32(0xd0) & ~0x80000000; |
| |
| MCHBAR32(0x28) = 0xf; |
| MCHBAR8(0x2c4) = MCHBAR8(0x2c4) | 1; |
| |
| MCHBAR32(0x3c) = MCHBAR32(0x3c) & ~0xe000000; |
| MCHBAR32(0x40) = (MCHBAR32(0x40) & ~0xc0000) | 0x40000; |
| u32 clkcx[2][2][3] = { |
| { |
| {0, 0x0c080302, 0x08010204}, // 667 |
| {0x02040000, 0x08100102, 0} |
| }, |
| { |
| {0x18000000, 0x3021060c, 0x20010208}, |
| {0, 0x0c090306, 0} // 800 |
| } |
| }; |
| j = s->selected_timings.fsb_clock; |
| i = s->selected_timings.mem_clock; |
| |
| MCHBAR32(0x708) = clkcx[j][i][0]; |
| MCHBAR32(0x70c) = clkcx[j][i][1]; |
| MCHBAR32(0x6dc) = clkcx[j][i][2]; |
| MCHBAR8(0x40) = MCHBAR8(0x40) & ~0x2; |
| } |
| |
| static void sdram_periodic_rcomp(void) |
| { |
| MCHBAR8(0x130) = MCHBAR8(0x130) & ~0x2; |
| while ((MCHBAR32(0x130) & 0x80000000) > 0) { |
| ; |
| } |
| MCHBAR16(0x1b4) = (MCHBAR16(0x1b4) & ~0x3000); |
| |
| MCHBAR8(0x5dc) = MCHBAR8(0x5dc) | 0x80; |
| MCHBAR16(0x170) = (MCHBAR16(0x170) & ~0xf) | 0x9; |
| |
| MCHBAR8(0x130) = MCHBAR8(0x130) | 0x82; |
| } |
| |
| static void sdram_new_trd(struct sysinfo *s) |
| { |
| u8 pidelay, i, j, k, cc, trd_perphase[5]; |
| u8 bypass, freqgb, trd, reg8, txfifo; |
| u32 reg32, datadelay, tio, rcvendelay, maxrcvendelay; |
| u16 tmclk, thclk, buffertocore, postcalib; |
| static const u8 txfifo_lut[8] = { 0, 7, 6, 5, 2, 1, 4, 3 }; |
| static const u16 trd_adjust[2][2][5] = { |
| { |
| {3000, 3000, 0,0,0}, |
| {1000,2000,3000,1500,2500} |
| }, |
| { |
| {2000,1000,3000,0,0}, |
| {2500, 2500, 0,0,0} |
| }}; |
| |
| freqgb = 110; |
| buffertocore = 5000; |
| postcalib = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 1250 : 500; |
| tmclk = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 3000 : 2500; |
| tmclk = tmclk * 100 / freqgb; |
| thclk = (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) ? 6000 : 5000; |
| switch (s->selected_timings.mem_clock) { |
| case MEM_CLOCK_667MHz: |
| if (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) { |
| cc = 2; |
| } else { |
| cc = 3; |
| } |
| break; |
| default: |
| case MEM_CLOCK_800MHz: |
| if (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) { |
| cc = 5; |
| } else { |
| cc = 2; |
| } |
| break; |
| } |
| tio = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 2700 : 3240; |
| maxrcvendelay = 0; |
| pidelay = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 24 : 20; |
| |
| for (i = 0; i < 8; i++) { |
| rcvendelay = ((u32)((s->coarsedelay >> (i << 1)) & 0x3) * (u32)(tmclk)); |
| rcvendelay += ((u32)((s->readptrdelay >> (i << 1)) & 0x3) * (u32)(tmclk) / 2); |
| rcvendelay += ((u32)((s->mediumphase >> (i << 1)) & 0x3) * (u32)(tmclk) / 4); |
| rcvendelay += (u32)(pidelay * s->pi[i]); |
| maxrcvendelay = MAX(maxrcvendelay, rcvendelay); |
| } |
| |
| if ((MCHBAR8(0xc54+3) == 0xff) && (MCHBAR8(0xc08) & 0x80)) { |
| bypass = 1; |
| } else { |
| bypass = 0; |
| } |
| |
| txfifo = 0; |
| reg8 = (MCHBAR8(0x188) & 0xe) >> 1; |
| txfifo = txfifo_lut[reg8] & 0x7; |
| |
| datadelay = tmclk * (2*txfifo + 4*s->coarsectrl + 4*(bypass-1) + 13) / 4 |
| + tio + maxrcvendelay + pidelay + buffertocore + postcalib; |
| if (s->async) { |
| datadelay += tmclk / 2; |
| } |
| |
| j = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 0 : 1; |
| k = (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) ? 0 : 1; |
| |
| if (j == 0 && k == 0) { |
| datadelay -= 3084; |
| } |
| |
| trd = 0; |
| for (i = 0; i < cc; i++) { |
| reg32 = datadelay - (trd_adjust[k][j][i] * 100 / freqgb); |
| trd_perphase[i] = (u8)(reg32 / thclk) - 2; |
| trd_perphase[i] += 1; |
| if (trd_perphase[i] > trd) { |
| trd = trd_perphase[i]; |
| } |
| } |
| |
| MCHBAR16(0x248) = (MCHBAR16(0x248) & ~0x1f00) | (trd << 8); |
| } |
| |
| static void sdram_powersettings(struct sysinfo *s) |
| { |
| u8 j; |
| u32 reg32; |
| |
| /* Thermal sensor */ |
| MCHBAR8(0x3808) = 0x9b; |
| MCHBAR32(0x380c) = (MCHBAR32(0x380c) & ~0x00ffffff) | 0x1d00; |
| MCHBAR8(0x3814) = 0x08; |
| MCHBAR8(0x3824) = 0x00; |
| MCHBAR8(0x3809) = (MCHBAR8(0x3809) & ~0xf) | 0x4; |
| MCHBAR8(0x3814) = (MCHBAR8(0x3814) & ~1) | 1; |
| MCHBAR8(0x3812) = (MCHBAR8(0x3812) & ~0x80) | 0x80; |
| |
| /* Clock gating */ |
| MCHBAR32(0xf18) = MCHBAR32(0xf18) & ~0x00040001; |
| MCHBAR8(0xfac+3) = MCHBAR8(0xfac+3) & ~0x80; |
| MCHBAR8(0xff8+3) = MCHBAR8(0xff8+3) & ~0x80; |
| MCHBAR16(0xff0) = MCHBAR16(0xff0) & ~0x1fff; |
| MCHBAR32(0xfb0) = MCHBAR32(0xfb0) & ~0x0001ffff; |
| MCHBAR16(0x48) = (MCHBAR16(0x48) & ~0x03ff) & 0x6; |
| MCHBAR32(0x20) = (MCHBAR32(0x20) & ~0xffffffff) | 0x20; |
| MCHBAR8(0xd14) = MCHBAR8(0xd14) & ~1; |
| MCHBAR8(0x239) = s->selected_timings.CAS - 1 + 0x15; |
| MCHBAR16(0x2d1) = (MCHBAR16(0x2d1) & ~0x07fc) | 0x40; |
| MCHBAR16(0x6d1) = (MCHBAR16(0x6d1) & ~0x0fff) | 0xd00; |
| MCHBAR16(0x210) = MCHBAR16(0x210) & ~0x0d80; |
| MCHBAR16(0xf6c+2) = 0xffff; |
| |
| /* Sequencing */ |
| MCHBAR32(0x14) = (MCHBAR32(0x14) & ~0x1fffffff) | 0x1f643fff; |
| MCHBAR32(0x18) = (MCHBAR32(0x18) & ~0xffffff7f) | 0x02010000; |
| MCHBAR16(0x1c) = (MCHBAR16(0x1c) & ~0x7000) | (0x3 << 12); |
| |
| /* Power */ |
| MCHBAR32(0x1104) = (MCHBAR32(0x1104) & ~0xffff0003) | 0x10100000; |
| MCHBAR32(0x1108) = (MCHBAR32(0x1108) & ~0x0001bff7) | 0x00000078; |
| if (s->selected_timings.fsb_clock == FSB_CLOCK_667MHz) { |
| MCHBAR16(0x110c) = (MCHBAR16(0x110c) & ~0x03ff) | 0xc8; |
| } else { |
| MCHBAR16(0x110c) = (MCHBAR16(0x110c) & ~0x03ff) | 0x100; |
| } |
| j = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 0 : 1; |
| |
| MCHBAR32(0x1110) = (MCHBAR32(0x1110) & ~0x1fff37f) | 0x10810700; |
| MCHBAR8(0x1114) = (MCHBAR8(0x1114) & ~0x07) | 1; |
| MCHBAR8(0x1124) = MCHBAR8(0x1124) & ~0x02; |
| |
| static const u16 ddr2lut[2][4][2] = {{ |
| {0x0000, 0x0000}, |
| {0x019A, 0x0039}, |
| {0x0099, 0x1049}, |
| {0x0000, 0x0000} |
| }, |
| { |
| {0x0000, 0x0000}, |
| {0x019A, 0x0039}, |
| {0x0099, 0x1049}, |
| {0x0099, 0x2159} |
| }}; |
| |
| MCHBAR16(0x23c) = 0x7a89; |
| MCHBAR8(0x117) = 0xaa; |
| MCHBAR16(0x118) = ddr2lut[j][s->selected_timings.CAS - 3][1]; |
| MCHBAR16(0x115) = (MCHBAR16(0x115) & ~0x7fff) | ddr2lut[j] |
| [s->selected_timings.CAS - 3][0]; |
| MCHBAR16(0x210) = (MCHBAR16(0x210) & ~0xf000) | 0xf000; |
| MCHBAR8(0x2c02) = (MCHBAR8(0x2c02) & ~0x77) | (4 << 4 | 4); |
| if (s->nodll) { |
| reg32 = 0x30000000; |
| } else { |
| reg32 = 0; |
| } |
| MCHBAR32(0x2c0) = (MCHBAR32(0x2c0) & ~0x0f000000) | 0x20000000 | reg32; |
| MCHBAR32(0x2d1) = (MCHBAR32(0x2d1) & ~0x00f00000) | 0x00f00000; |
| MCHBAR32(0x6d0) = (MCHBAR32(0x6d0) & ~0x001ff000) | (0xbf << 20); |
| MCHBAR16(0x610) = (MCHBAR16(0x610) & ~0x1f7f) | (0xb << 8) | (7 << 4) | 0xb; |
| MCHBAR16(0x612) = 0x3264; |
| MCHBAR16(0x614) = (MCHBAR16(0x614) & ~0x3f3f) | (0x14 << 8) | 0xa; |
| |
| MCHBAR32(0x6c0) = MCHBAR32(0x6c0) | 0x80002000; |
| } |
| |
| static void sdram_programddr(void) |
| { |
| MCHBAR16(0x6d1) = (MCHBAR16(0x6d1) & ~0x03ff) | 0x100; |
| MCHBAR16(0x210) = (MCHBAR16(0x210) & ~0x003f) | 0x10; |
| MCHBAR16(0x2d1) = (MCHBAR16(0x2d1) & ~0x7000) | 0x2000; |
| MCHBAR8(0x180) = MCHBAR8(0x180) & ~0xe; |
| MCHBAR8(0x18c) = MCHBAR8(0x18c) & ~0xc; |
| MCHBAR8(0x561) = MCHBAR8(0x561) & ~0xe; |
| MCHBAR8(0x565) = MCHBAR8(0x565) & ~0xe; |
| MCHBAR8(0x569) = MCHBAR8(0x569) & ~0xe; |
| MCHBAR8(0x56d) = MCHBAR8(0x56d) & ~0xe; |
| MCHBAR8(0x571) = MCHBAR8(0x571) & ~0xe; |
| MCHBAR8(0x575) = MCHBAR8(0x575) & ~0xe; |
| MCHBAR8(0x579) = MCHBAR8(0x579) & ~0xe; |
| MCHBAR8(0x57d) = MCHBAR8(0x57d) & ~0xe; |
| MCHBAR8(0x18c) = MCHBAR8(0x18c) & ~0x2; |
| MCHBAR16(0x1b4) = MCHBAR16(0x1b4) & ~0x400; |
| MCHBAR16(0x210) = MCHBAR16(0x210) & ~0xdc0; |
| MCHBAR8(0x239) = MCHBAR8(0x239) & ~0x80; |
| MCHBAR32(0x2c0) = MCHBAR32(0x2c0) & ~(1 << 22); |
| MCHBAR16(0x2d1) = MCHBAR16(0x2d1) & ~0x80fc; |
| MCHBAR16(0x6d1) = MCHBAR16(0x6d1) & ~0xc00; |
| MCHBAR8(0x180) = MCHBAR8(0x180) & ~0xd; |
| MCHBAR8(0x561) = MCHBAR8(0x561) & ~1; |
| MCHBAR8(0x565) = MCHBAR8(0x565) & ~1; |
| MCHBAR8(0x569) = MCHBAR8(0x569) & ~1; |
| MCHBAR8(0x56d) = MCHBAR8(0x56d) & ~1; |
| MCHBAR8(0x571) = MCHBAR8(0x571) & ~1; |
| MCHBAR8(0x575) = MCHBAR8(0x575) & ~1; |
| MCHBAR8(0x579) = MCHBAR8(0x579) & ~1; |
| MCHBAR8(0x57d) = MCHBAR8(0x57d) & ~1; |
| MCHBAR32(0x248) = (MCHBAR32(0x248) & ~0x700000) | (0x3 << 20); |
| MCHBAR32(0x2c0) = MCHBAR32(0x2c0) & ~0x100000; |
| MCHBAR8(0x592) = MCHBAR8(0x592) | 0x1e; |
| MCHBAR8(0x2c15) = MCHBAR8(0x2c15) | 0x3; |
| MCHBAR32(0x62c) = (MCHBAR32(0x62c) & ~0xc000000) | 0x4000000; |
| MCHBAR16(0x248) = MCHBAR16(0x248) | 0x6000; |
| MCHBAR32(0x260) = MCHBAR32(0x260) | 0x10000; |
| MCHBAR8(0x2c0) = MCHBAR8(0x2c0) | 0x10; |
| MCHBAR32(0x2d0) = MCHBAR32(0x2d0) | (0xf << 24); |
| MCHBAR8(0x189) = MCHBAR8(0x189) | 0x7; |
| MCHBAR8(0x592) = MCHBAR8(0x592) | 0xc0; |
| MCHBAR8(0x124) = MCHBAR8(0x124) | 0x7; |
| MCHBAR16(0x12a) = (MCHBAR16(0x12a) & ~0xffff) | 0x0080; |
| MCHBAR8(0x12c) = (MCHBAR8(0x12c) & ~0xff) | 0x10; |
| MCHBAR16(0x2c0) = MCHBAR16(0x2c0) | 0x1e0; |
| MCHBAR8(0x189) = MCHBAR8(0x189) | 0x18; |
| MCHBAR8(0x193) = MCHBAR8(0x193) | 0xd; |
| MCHBAR16(0x212) = MCHBAR16(0x212) | 0xa3f; |
| MCHBAR8(0x248) = MCHBAR8(0x248) | 0x3; |
| MCHBAR8(0x268) = (MCHBAR8(0x268) & ~0xff) | 0x4a; |
| MCHBAR8(0x2c4) = MCHBAR8(0x2c4) & ~0x60; |
| MCHBAR16(0x592) = MCHBAR16(0x592) | 0x321; |
| } |
| |
| static void sdram_programdqdqs(struct sysinfo *s) |
| { |
| u16 mdclk, tpi, refclk, dqdqs_out, dqdqs_outdelay, dqdqs_delay; |
| u32 coretomcp, txdelay, tmaxunmask, tmaxpi; |
| u8 repeat, halfclk, feature, reg8, push; |
| u16 cwb, pimdclk; |
| u32 reg32; |
| static const u8 txfifotab[8] = { 0, 7, 6, 5, 2, 1, 4, 3 }; |
| |
| tpi = 3000; |
| dqdqs_out = 4382; |
| dqdqs_outdelay = 5083; |
| dqdqs_delay = 4692; |
| coretomcp = 0; |
| txdelay = 0; |
| halfclk = 0; |
| tmaxunmask = 0; |
| tmaxpi = 0; |
| repeat = 2; |
| feature = 0; |
| cwb = 0; |
| pimdclk = 0; |
| reg32 = 0; |
| push = 0; |
| reg8 = 0; |
| |
| mdclk = (s->selected_timings.mem_clock == MEM_CLOCK_667MHz) ? 3000 : 2500; |
| refclk = 3000 - mdclk; |
| |
| coretomcp = ((MCHBAR8(0x246) >> 2) & 0x3) + 1; |
| coretomcp *= mdclk; |
| |
| reg8 = (MCHBAR8(0x188) & 0xe) >> 1; |
| |
| while (repeat) { |
| txdelay = mdclk * ( |
| ((MCHBAR16(0x220) >> 8) & 0x7) + |
| (MCHBAR8(0x24d) & 0xf) + |
| (MCHBAR8(0x24e) & 0x1) |
| ) + |
| txfifotab[reg8]*(mdclk/2) + |
| coretomcp + |
| refclk + |
| cwb; |
| halfclk = (MCHBAR8(0x5d9) >> 1) & 0x1; |
| if (halfclk) { |
| txdelay -= mdclk / 2; |
| reg32 = dqdqs_outdelay + coretomcp - mdclk / 2; |
| } else { |
| reg32 = dqdqs_outdelay + coretomcp; |
| } |
| |
| tmaxunmask = txdelay - mdclk - dqdqs_out; |
| tmaxpi = tmaxunmask - tpi; |
| |
| if ((tmaxunmask >= reg32) && tmaxpi >= dqdqs_delay) { |
| if (repeat == 2) { |
| MCHBAR32(0x2c0) = MCHBAR32(0x2c0) & ~(1 << 23); |
| } |
| feature = 1; |
| repeat = 0; |
| } else { |
| repeat--; |
| MCHBAR32(0x2c0) = MCHBAR32(0x2c0) | (1 << 23); |
| cwb = 2 * mdclk; |
| } |
| } |
| |
| if (!feature) { |
| MCHBAR8(0x2d1) = MCHBAR8(0x2d1) & ~0x3; |
| return; |
| } |
| MCHBAR8(0x2d1) = MCHBAR8(0x2d1) | 0x3; |
| MCHBAR16(0x210) = (MCHBAR16(0x210) & ~0xf000) | (pimdclk << 12); |
| MCHBAR8(0x2c02) = (MCHBAR8(0x2c02) & ~0x77) | (push << 4) | push; |
| MCHBAR32(0x2c0) = (MCHBAR32(0x2c0) & ~0xf000000) | 0x3000000; |
| } |
| |
| /** |
| * @param boot_path: 0 = normal, 1 = reset, 2 = resume from s3 |
| */ |
| void sdram_initialize(int boot_path, const u8 *spd_addresses) |
| { |
| struct sysinfo si; |
| u8 reg8; |
| const char *boot_str[] = { "Normal", "Reset", "Resume"}; |
| |
| PRINTK_DEBUG("Setting up RAM controller.\n"); |
| |
| memset(&si, 0, sizeof(si)); |
| |
| si.boot_path = boot_path; |
| printk(BIOS_DEBUG, "Boot path: %s\n", boot_str[boot_path]); |
| si.spd_map[0] = spd_addresses[0]; |
| si.spd_map[1] = spd_addresses[1]; |
| si.spd_map[2] = spd_addresses[2]; |
| si.spd_map[3] = spd_addresses[3]; |
| |
| sdram_read_spds(&si); |
| |
| /* Choose Common Frequency */ |
| sdram_detect_ram_speed(&si); |
| |
| /* Determine smallest common tRAS, tRP, tRCD, etc */ |
| sdram_detect_smallest_params(&si); |
| |
| /* Enable HPET */ |
| enable_hpet(); |
| |
| MCHBAR16(0xc1c) = MCHBAR16(0xc1c) | (1 << 15); |
| |
| sdram_clk_crossing(&si); |
| |
| sdram_checkreset(); |
| PRINTK_DEBUG("Done checkreset\n"); |
| |
| sdram_clkmode(&si); |
| PRINTK_DEBUG("Done clkmode\n"); |
| |
| sdram_timings(&si); |
| PRINTK_DEBUG("Done timings (dqs dll enabled)\n"); |
| |
| if (si.boot_path != BOOT_PATH_RESET) { |
| sdram_dlltiming(&si); |
| PRINTK_DEBUG("Done dlltiming\n"); |
| } |
| |
| if (si.boot_path != BOOT_PATH_RESET) { |
| sdram_rcomp(&si); |
| PRINTK_DEBUG("Done RCOMP\n"); |
| } |
| |
| sdram_odt(&si); |
| PRINTK_DEBUG("Done odt\n"); |
| |
| if (si.boot_path != BOOT_PATH_RESET) { |
| while ((MCHBAR8(0x130) & 0x1) != 0) |
| ; |
| } |
| |
| sdram_mmap(&si); |
| PRINTK_DEBUG("Done mmap\n"); |
| |
| // Enable DDR IO buffer |
| MCHBAR8(0x5dd) = (MCHBAR8(0x5dd) & ~0x3f) | 0x8; |
| MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x1; |
| |
| sdram_rcompupdate(&si); |
| PRINTK_DEBUG("Done RCOMP update\n"); |
| |
| MCHBAR8(0x40) = MCHBAR8(0x40) | 0x2; |
| |
| if (si.boot_path != BOOT_PATH_RESUME) { |
| MCHBAR32(0x260) = MCHBAR32(0x260) | (1 << 27); |
| |
| sdram_jedecinit(&si); |
| PRINTK_DEBUG("Done MRS\n"); |
| } |
| |
| sdram_misc(&si); |
| PRINTK_DEBUG("Done misc\n"); |
| |
| sdram_zqcl(&si); |
| PRINTK_DEBUG("Done zqcl\n"); |
| |
| if (si.boot_path != BOOT_PATH_RESUME) { |
| MCHBAR32(0x268) = MCHBAR32(0x268) | 0xc0000000; |
| } |
| |
| sdram_dradrb(&si); |
| PRINTK_DEBUG("Done dradrb\n"); |
| |
| sdram_rcven(&si); |
| PRINTK_DEBUG("Done rcven\n"); |
| |
| sdram_new_trd(&si); |
| PRINTK_DEBUG("Done tRD\n"); |
| |
| sdram_mmap_regs(&si); |
| PRINTK_DEBUG("Done mmap regs\n"); |
| |
| sdram_enhancedmode(&si); |
| PRINTK_DEBUG("Done enhanced mode\n"); |
| |
| sdram_powersettings(&si); |
| PRINTK_DEBUG("Done power settings\n"); |
| |
| sdram_programddr(); |
| PRINTK_DEBUG("Done programming ddr\n"); |
| |
| sdram_programdqdqs(&si); |
| PRINTK_DEBUG("Done programming dqdqs\n"); |
| |
| sdram_periodic_rcomp(); |
| PRINTK_DEBUG("Done periodic RCOMP\n"); |
| |
| /* Set init done */ |
| MCHBAR32(0x268) = MCHBAR32(0x268) | 0x40000000; |
| |
| /* Tell ICH7 that we're done */ |
| reg8 = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xa2); |
| pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xa2, reg8 & ~0x80); |
| |
| /* Tell northbridge we're done */ |
| reg8 = pci_read_config8(PCI_DEV(0,0,0), 0xf4); |
| pci_write_config8(PCI_DEV(0,0,0), 0xf4, reg8 | 1); |
| |
| printk(BIOS_DEBUG, "RAM initialization finished.\n"); |
| } |