diff options
Diffstat (limited to 'src/northbridge/intel/x4x/raminit_ddr23.c')
-rw-r--r-- | src/northbridge/intel/x4x/raminit_ddr23.c | 1744 |
1 files changed, 1744 insertions, 0 deletions
diff --git a/src/northbridge/intel/x4x/raminit_ddr23.c b/src/northbridge/intel/x4x/raminit_ddr23.c new file mode 100644 index 000000000000..f3257a935631 --- /dev/null +++ b/src/northbridge/intel/x4x/raminit_ddr23.c @@ -0,0 +1,1744 @@ +/* + * 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 <assert.h> +#include <stdint.h> +#include <arch/io.h> +#include <arch/cpu.h> +#include <console/console.h> +#include <commonlib/helpers.h> +#include <delay.h> +#include <pc80/mc146818rtc.h> +#if IS_ENABLED(CONFIG_SOUTHBRIDGE_INTEL_I82801GX) +#include <southbridge/intel/i82801gx/i82801gx.h> +#else +#include <southbridge/intel/i82801jx/i82801jx.h> +#endif +#include <string.h> +#include "iomap.h" +#include "x4x.h" + +#define ME_UMA_SIZEMB 0 + +u32 fsb2mhz(u32 speed) +{ + return (speed * 267) + 800; +} + +u32 ddr2mhz(u32 speed) +{ + static const u16 mhz[] = { 0, 0, 667, 800, 1067, 1333 }; + + if (speed >= ARRAY_SIZE(mhz)) + return 0; + + return mhz[speed]; +} + + +static void program_crossclock(struct sysinfo *s) +{ + u8 i, j; + MCHBAR16(0xc1c) = MCHBAR16(0xc1c) | (1 << 15); + + static const u32 clkxtab[6][3][13] = { + /* MEMCLK 400 N/A */ + {{}, {}, {} }, + /* MEMCLK 533 N/A */ + {{}, {}, {} }, + /* MEMCLK 667 + * FSB 800 */ + {{0x1f1f1f1f, 0x1a07070b, 0x00000000, 0x10000000, + 0x20010208, 0x04080000, 0x10010002, 0x00000000, + 0x00000000, 0x02000000, 0x04000100, 0x08000000, + 0x10200204}, + /* FSB 1067 */ + {0x6d5b1f1f, 0x0f0f0f0f, 0x00000000, 0x20000000, + 0x80020410, 0x02040008, 0x10000100, 0x00000000, + 0x00000000, 0x04000000, 0x08000102, 0x20000000, + 0x40010208}, + /* FSB 1333 */ + {0x05050303, 0xffffffff, 0xffff0000, 0x00000000, + 0x08020000, 0x00000000, 0x00020001, 0x00000000, + 0x00000000, 0x00000000, 0x08010204, 0x00000000, + 0x04010000} }, + /* MEMCLK 800 + * FSB 800 */ + {{0xffffffff, 0x05030305, 0x0000ffff, 0x0000000, + 0x08010204, 0x00000000, 0x08010204, 0x0000000, + 0x00000000, 0x00000000, 0x00020001, 0x0000000, + 0x04080102}, + /* FSB 1067 */ + {0x07070707, 0x06030303, 0x00000000, 0x00000000, + 0x08010200, 0x00000000, 0x04000102, 0x00000000, + 0x00000000, 0x00000000, 0x00020001, 0x00000000, + 0x02040801}, + /* FSB 1333 */ + {0x0d0b0707, 0x3e1f1f2f, 0x01010000, 0x00000000, + 0x10020400, 0x02000000, 0x00040100, 0x00000000, + 0x00000000, 0x04080000, 0x00100102, 0x00000000, + 0x08100200} }, + /* MEMCLK 1067 */ + {{}, + /* FSB 1067 */ + {0xffffffff, 0x05030305, 0x0000ffff, 0x00000000, + 0x04080102, 0x00000000, 0x08010204, 0x00000000, + 0x00000000, 0x00000000, 0x00020001, 0x00000000, + 0x02040801}, + /* FSB 1333 */ + {0x0f0f0f0f, 0x5b1f1f6d, 0x00000000, 0x00000000, + 0x08010204, 0x04000000, 0x00080102, 0x00000000, + 0x00000000, 0x02000408, 0x00100001, 0x00000000, + 0x04080102} }, + /* MEMCLK 1333 */ + {{}, {}, + /* FSB 1333 */ + {0xffffffff, 0x05030305, 0x0000ffff, 0x00000000, + 0x04080102, 0x00000000, 0x04080102, 0x00000000, + 0x00000000, 0x00000000, 0x00000000, 0x00000000, + 0x02040801} } + }; + + i = (u8)s->selected_timings.mem_clk; + j = (u8)s->selected_timings.fsb_clk; + + MCHBAR32(0xc04) = clkxtab[i][j][0]; + MCHBAR32(0xc50) = clkxtab[i][j][1]; + MCHBAR32(0xc54) = clkxtab[i][j][2]; + MCHBAR8(0xc08) = MCHBAR8(0xc08) | (1 << 7); + MCHBAR32(0x6d8) = clkxtab[i][j][3]; + MCHBAR32(0x6e0) = clkxtab[i][j][3]; + MCHBAR32(0x6dc) = clkxtab[i][j][4]; + MCHBAR32(0x6e4) = clkxtab[i][j][4]; + MCHBAR32(0x6e8) = clkxtab[i][j][5]; + MCHBAR32(0x6f0) = clkxtab[i][j][5]; + MCHBAR32(0x6ec) = clkxtab[i][j][6]; + MCHBAR32(0x6f4) = clkxtab[i][j][6]; + MCHBAR32(0x6f8) = clkxtab[i][j][7]; + MCHBAR32(0x6fc) = clkxtab[i][j][8]; + MCHBAR32(0x708) = clkxtab[i][j][11]; + MCHBAR32(0x70c) = clkxtab[i][j][12]; +} + +static void setioclk_dram(struct sysinfo *s) +{ + MCHBAR32(0x1bc) = 0x08060402; + MCHBAR16(0x1c0) = MCHBAR16(0x1c0) | 0x200; + MCHBAR16(0x1c0) = MCHBAR16(0x1c0) | 0x100; + MCHBAR16(0x1c0) = MCHBAR16(0x1c0) | 0x20; + MCHBAR16(0x1c0) = MCHBAR16(0x1c0) & ~1; + switch (s->selected_timings.mem_clk) { + default: + case MEM_CLOCK_800MHz: + case MEM_CLOCK_1066MHz: + MCHBAR8(0x5d9) = (MCHBAR8(0x5d9) & ~0x2) | 0x2; + MCHBAR8(0x9d9) = (MCHBAR8(0x9d9) & ~0x2) | 0x2; + MCHBAR8(0x189) = (MCHBAR8(0x189) & ~0xf0) | 0xc0; + MCHBAR8(0x189) = (MCHBAR8(0x189) & ~0xf0) | 0xe0; + MCHBAR8(0x189) = (MCHBAR8(0x189) & ~0xf0) | 0xa0; + break; + case MEM_CLOCK_667MHz: + case MEM_CLOCK_1333MHz: + MCHBAR8(0x5d9) = MCHBAR8(0x5d9) & ~0x2; + MCHBAR8(0x9d9) = MCHBAR8(0x9d9) & ~0x2; + MCHBAR8(0x189) = (MCHBAR8(0x189) & ~0xf0) | 0x40; + break; + } + MCHBAR32(0x594) = MCHBAR32(0x594) | (1 << 31); + MCHBAR32(0x994) = MCHBAR32(0x994) | (1 << 31); +} + +static void launch_dram(struct sysinfo *s) +{ + u8 i; + u32 launch1 = 0x58001117; + u32 launch2 = 0; + u32 launch3 = 0; + + if (s->selected_timings.CAS == 5) + launch2 = 0x00220201; + else if (s->selected_timings.CAS == 6) + launch2 = 0x00230302; + else + die("Unsupported CAS\n"); + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + MCHBAR32(0x400*i + 0x220) = launch1; + MCHBAR32(0x400*i + 0x224) = launch2; + MCHBAR32(0x400*i + 0x21c) = launch3; + MCHBAR32(0x400*i + 0x248) = MCHBAR32(0x400*i + 0x248) | (1 << 23); + } + + MCHBAR32(0x2c0) = (MCHBAR32(0x2c0) & ~0x58000000) | 0x48000000; + MCHBAR32(0x2c0) = MCHBAR32(0x2c0) | 0x1e0; + MCHBAR32(0x2c4) = (MCHBAR32(0x2c4) & ~0xf) | 0xc; +} + +static void clkset0(u8 ch, const struct dll_setting *setting) +{ + MCHBAR16(0x400*ch + 0x5a0) = (MCHBAR16(0x400*ch + 0x5a0) & ~0xc440) | + (setting->clk_delay << 14) | + (setting->db_sel << 6) | + (setting->db_en << 10); + MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0xf) | + setting->tap; +} + +static void clkset1(u8 ch, const struct dll_setting *setting) +{ + MCHBAR32(0x400*ch + 0x5a0) = (MCHBAR32(0x400*ch + 0x5a0) & ~0x30880) | + (setting->clk_delay << 16) | + (setting->db_sel << 7) | + (setting->db_en << 11); + MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0xf) | + setting->tap; +} + +static void ctrlset0(u8 ch, const struct dll_setting *setting) +{ + MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x3300000) | + (setting->clk_delay << 24) | + (setting->db_sel << 20) | + (setting->db_en << 21); + MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0xf) | + setting->tap; +} + +static void ctrlset1(u8 ch, const struct dll_setting *setting) +{ + MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x18c00000) | + (setting->clk_delay << 27) | + (setting->db_sel << 22) | + (setting->db_en << 23); + MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0xf) | + setting->tap; +} + +static void ctrlset2(u8 ch, const struct dll_setting *setting) +{ + MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) | + (setting->clk_delay << 14) | + (setting->db_sel << 12) | + (setting->db_en << 13); + MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0xf) | + setting->tap; +} + +static void ctrlset3(u8 ch, const struct dll_setting *setting) +{ + MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) | + (setting->clk_delay << 10) | + (setting->db_sel << 8) | + (setting->db_en << 9); + MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0xf) | + setting->tap; +} + +static void cmdset(u8 ch, const struct dll_setting *setting) +{ + MCHBAR8(0x400*ch + 0x598) = (MCHBAR8(0x400*ch + 0x598) & ~0x30) | + (setting->clk_delay << 4); + MCHBAR8(0x400*ch + 0x594) = (MCHBAR8(0x400*ch + 0x594) & ~0x60) | + (setting->db_sel << 5) | + (setting->db_en << 6); + MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0x70) | + (setting->pi << 4); + MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0xf) | + setting->tap; +} + +/** + * All finer DQ and DQS DLL settings are set to the same value + * for each rank in a channel, while coarse is common. + */ +void dqsset(u8 ch, u8 lane, const struct dll_setting *setting) +{ + int rank; + + MCHBAR32(0x400 * ch + 0x5fc) = (MCHBAR32(0x400 * ch + 0x5fc) + & ~(1 << (lane * 4 + 1))) + | (setting->coarse << (lane * 4 + 1)); + + for (rank = 0; rank < 4; rank++) { + MCHBAR32(0x400 * ch + 0x5b4 + rank * 4) = + (MCHBAR32(0x400 * ch + 0x5b4 + rank * 4) + & ~(0x201 << lane)) + | (setting->db_en << (9 + lane)) + | (setting->db_sel << lane); + + MCHBAR32(0x400*ch + 0x5c8 + rank * 4) = + (MCHBAR32(0x400 * ch + 0x5c8 + rank * 4) + & ~(0x3 << (16 + lane * 2))) + | (setting->clk_delay << (16+lane * 2)); + + MCHBAR8(0x400*ch + 0x520 + lane * 4 + rank) = + (MCHBAR8(0x400*ch + 0x520 + lane*4) & ~0x7f) + | (setting->pi << 4) + | setting->tap; + } +} + +void dqset(u8 ch, u8 lane, const struct dll_setting *setting) +{ + int rank; + MCHBAR32(0x400 * ch + 0x5fc) = (MCHBAR32(0x400 * ch + 0x5fc) + & ~(1 << (lane * 4))) + | (setting->coarse << (lane * 4)); + + for (rank = 0; rank < 4; rank++) { + MCHBAR32(0x400 * ch + 0x5a4 + rank * 4) = + (MCHBAR32(0x400 * ch + 0x5a4 + rank * 4) + & ~(0x201 << lane)) + | (setting->db_en << (9 + lane)) + | (setting->db_sel << lane); + + MCHBAR32(0x400 * ch + 0x5c8 + rank * 4) = + (MCHBAR32(0x400 * ch + 0x5c8 + rank * 4) + & ~(0x3 << (lane * 2))) + | (setting->clk_delay << (2 * lane)); + + MCHBAR8(0x400*ch + 0x500 + lane * 4 + rank) = + (MCHBAR8(0x400 * ch + 0x500 + lane * 4 + rank) & ~0x7f) + | (setting->pi << 4) + | setting->tap; + } +} + +void rt_set_dqs(u8 channel, u8 lane, u8 rank, + struct rt_dqs_setting *dqs_setting) +{ + u16 saved_tap = MCHBAR16(0x540 + 0x400 * channel + lane * 4); + u16 saved_pi = MCHBAR16(0x542 + 0x400 * channel + lane * 4); + printk(RAM_SPEW, "RT DQS: ch%d, r%d, L%d: %d.%d\n", channel, rank, lane, + dqs_setting->tap, + dqs_setting->pi); + + saved_tap &= ~(0xf << (rank * 4)); + saved_tap |= dqs_setting->tap << (rank * 4); + MCHBAR16(0x540 + 0x400 * channel + lane * 4) = saved_tap; + + saved_pi &= ~(0x7 << (rank * 3)); + saved_pi |= dqs_setting->pi << (rank * 3); + MCHBAR16(0x542 + 0x400 * channel + lane * 4) = saved_pi; +} + +static void program_timings(struct sysinfo *s) +{ + u8 i; + u8 twl, ta1, ta2, ta3, ta4; + u8 reg8; + u8 flag1 = 0; + u8 flag2 = 0; + u16 reg16; + u32 reg32; + u16 ddr, fsb; + u8 trpmod = 0; + u8 bankmod = 1; + u8 pagemod = 0; + u8 adjusted_cas; + + adjusted_cas = s->selected_timings.CAS - 3; + + u16 fsb2ps[3] = { + 5000, // 800 + 3750, // 1067 + 3000 // 1333 + }; + + u16 ddr2ps[6] = { + 5000, // 400 + 3750, // 533 + 3000, // 667 + 2500, // 800 + 1875, // 1067 + 1500 // 1333 + }; + + u16 lut1[6] = { + 0, + 0, + 2600, + 3120, + 4171, + 5200 + }; + + ta1 = 6; + ta2 = 6; + ta3 = 5; + ta4 = 8; + + twl = s->selected_timings.CAS - 1; + + FOR_EACH_POPULATED_DIMM(s->dimms, i) { + if (s->dimms[i].n_banks == N_BANKS_8) { + trpmod = 1; + bankmod = 0; + } + if (s->dimms[i].page_size == 2048) + pagemod = 1; + } + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + MCHBAR8(0x400*i + 0x26f) = MCHBAR8(0x400*i + 0x26f) | 0x3; + MCHBAR8(0x400*i + 0x228) = (MCHBAR8(0x400*i + 0x228) & ~0x7) | 0x2; + MCHBAR8(0x400*i + 0x240) = (MCHBAR8(0x400*i + 0x240) & ~0xf0) + | (0 << 4); /* tWL - x ?? */ + MCHBAR8(0x400*i + 0x240) = (MCHBAR8(0x400*i + 0x240) & ~0xf) | + adjusted_cas; + MCHBAR16(0x400*i + 0x265) = (MCHBAR16(0x400*i + 0x265) & ~0x3f00) | + ((adjusted_cas + 9) << 8); + + reg16 = (s->selected_timings.tRAS << 11) | + ((twl + 4 + s->selected_timings.tWR) << 6) | + ((2 + MAX(s->selected_timings.tRTP, 2)) << 2) | 1; + MCHBAR16(0x400*i + 0x250) = reg16; + + reg32 = (bankmod << 21) | + (s->selected_timings.tRRD << 17) | + (s->selected_timings.tRP << 13) | + ((s->selected_timings.tRP + trpmod) << 9) | + s->selected_timings.tRFC; + reg8 = (MCHBAR8(0x400*i + 0x26f) >> 1) & 1; + if (bankmod) { + switch (s->selected_timings.mem_clk) { + default: + case MEM_CLOCK_667MHz: + if (reg8) { + if (pagemod) + reg32 |= 16 << 22; + else + reg32 |= 12 << 22; + } else { + if (pagemod) + reg32 |= 18 << 22; + else + reg32 |= 14 << 22; + } + break; + case MEM_CLOCK_800MHz: + if (reg8) { + if (pagemod) + reg32 |= 18 << 22; + else + reg32 |= 14 << 22; + } else { + if (pagemod) + reg32 |= 20 << 22; + else + reg32 |= 16 << 22; + } + break; + } + } + MCHBAR32(0x400*i + 0x252) = reg32; + + MCHBAR16(0x400*i + 0x256) = (s->selected_timings.tRCD << 12) | + (0x4 << 8) | (ta2 << 4) | ta4; + + MCHBAR32(0x400*i + 0x258) = (s->selected_timings.tRCD << 17) | + ((twl + 4 + s->selected_timings.tWTR) << 12) | + (ta3 << 8) | (4 << 4) | ta1; + + MCHBAR16(0x400*i + 0x25b) = ((s->selected_timings.tRP + trpmod) << 9) | + s->selected_timings.tRFC; + + MCHBAR16(0x400*i + 0x260) = (MCHBAR16(0x400*i + 0x260) & ~0x3fe) | (100 << 1); + MCHBAR8(0x400*i + 0x264) = 0xff; + MCHBAR8(0x400*i + 0x25d) = (MCHBAR8(0x400*i + 0x25d) & ~0x3f) | + s->selected_timings.tRAS; + MCHBAR16(0x400*i + 0x244) = 0x2310; + + switch (s->selected_timings.mem_clk) { + case MEM_CLOCK_667MHz: + reg8 = 0; + break; + default: + reg8 = 1; + break; + } + + MCHBAR8(0x400*i + 0x246) = (MCHBAR8(0x400*i + 0x246) & ~0x1f) | + (reg8 << 2) | 1; + + fsb = fsb2ps[s->selected_timings.fsb_clk]; + ddr = ddr2ps[s->selected_timings.mem_clk]; + reg32 = (u32)((adjusted_cas + 7 + reg8) * ddr); + reg32 = (u32)((reg32 / fsb) << 8); + reg32 |= 0x0e000000; + if ((fsb2mhz(s->selected_timings.fsb_clk) / + ddr2mhz(s->selected_timings.mem_clk)) > 2) { + reg32 |= 1 << 24; + } + MCHBAR32(0x400*i + 0x248) = (MCHBAR32(0x400*i + 0x248) & ~0x0f001f00) | + reg32; + + if (twl > 2) + flag1 = 1; + + if (s->selected_timings.mem_clk >= MEM_CLOCK_800MHz) + flag2 = 1; + + reg16 = (u8)(twl - 1 - flag1 - flag2); + reg16 |= reg16 << 4; + if (s->selected_timings.mem_clk == MEM_CLOCK_1333MHz) { + if (reg16) + reg16--; + } + reg16 |= flag1 << 8; + reg16 |= flag2 << 9; + MCHBAR16(0x400*i + 0x24d) = (MCHBAR16(0x400*i + 0x24d) & ~0x1ff) | reg16; + MCHBAR16(0x400*i + 0x25e) = 0x15a5; + MCHBAR32(0x400*i + 0x265) = MCHBAR32(0x400*i + 0x265) & ~0x1f; + MCHBAR32(0x400*i + 0x269) = (MCHBAR32(0x400*i + 0x269) & ~0x000fffff) | + (0x3f << 14) | lut1[s->selected_timings.mem_clk]; + MCHBAR8(0x400*i + 0x274) = MCHBAR8(0x400*i + 0x274) | 1; + MCHBAR8(0x400*i + 0x24c) = MCHBAR8(0x400*i + 0x24c) & ~0x3; + + reg16 = 0; + switch (s->selected_timings.mem_clk) { + default: + case MEM_CLOCK_667MHz: + reg16 = 0x99; + break; + case MEM_CLOCK_800MHz: + if (s->selected_timings.CAS == 5) + reg16 = 0x19a; + else if (s->selected_timings.CAS == 6) + reg16 = 0x9a; + break; + } + reg16 &= 0x7; + reg16 += twl + 9; + reg16 <<= 10; + MCHBAR16(0x400*i + 0x24d) = (MCHBAR16(0x400*i + 0x24d) & ~0x7c00) | reg16; + MCHBAR8(0x400*i + 0x267) = (MCHBAR8(0x400*i + 0x267) & ~0x3f) | 0x13; + MCHBAR8(0x400*i + 0x268) = (MCHBAR8(0x400*i + 0x268) & ~0xff) | 0x4a; + + reg16 = (MCHBAR16(0x400*i + 0x269) & 0xc000) >> 2; + reg16 += 2 << 12; + reg16 |= (0x15 << 6) | 0x1f; + MCHBAR16(0x400*i + 0x26d) = (MCHBAR16(0x400*i + 0x26d) & ~0x7fff) | reg16; + + reg32 = (1 << 25) | (6 << 27); + MCHBAR32(0x400*i + 0x269) = (MCHBAR32(0x400*i + 0x269) & ~0xfa300000) | reg32; + MCHBAR8(0x400*i + 0x271) = MCHBAR8(0x400*i + 0x271) & ~0x80; + MCHBAR8(0x400*i + 0x274) = MCHBAR8(0x400*i + 0x274) & ~0x6; + } // END EACH POPULATED CHANNEL + + reg16 = 0x1f << 5; + reg16 |= 0xe << 10; + MCHBAR16(0x125) = (MCHBAR16(0x125) & ~0x3fe0) | reg16; + MCHBAR16(0x127) = (MCHBAR16(0x127) & ~0x7ff) | 0x540; + MCHBAR8(0x129) = MCHBAR8(0x129) | 0x1f; + MCHBAR8(0x12c) = MCHBAR8(0x12c) | 0xa0; + MCHBAR32(0x241) = (MCHBAR32(0x241) & ~0x1ffff) | 0x11; + MCHBAR32(0x641) = (MCHBAR32(0x641) & ~0x1ffff) | 0x11; + MCHBAR8(0x246) = MCHBAR8(0x246) & ~0x10; + MCHBAR8(0x646) = MCHBAR8(0x646) & ~0x10; + MCHBAR32(0x120) = (2 << 29) | (1 << 28) | (1 << 23) | 0xd7f5f; + reg8 = (u8)((MCHBAR32(0x252) & 0x1e000) >> 13); + MCHBAR8(0x12d) = (MCHBAR8(0x12d) & ~0xf0) | (reg8 << 4); + reg8 = (u8)((MCHBAR32(0x258) & 0x1e0000) >> 17); + MCHBAR8(0x12d) = (MCHBAR8(0x12d) & ~0xf) | reg8; + MCHBAR8(0x12f) = 0x4c; + reg32 = (1 << 31) | (0x80 << 14) | (1 << 13) | (0xa << 9); + MCHBAR32(0x6c0) = (MCHBAR32(0x6c0) & ~0xffffff00) | reg32; + MCHBAR8(0x6c4) = (MCHBAR8(0x6c4) & ~0x7) | 0x2; +} + +static void program_dll(struct sysinfo *s) +{ + u8 i, j, r, reg8, clk, async = 0; + u16 reg16 = 0; + u32 reg32 = 0; + + MCHBAR16(0x180) = (MCHBAR16(0x180) & ~0x7e06) | 0xc04; + MCHBAR16(0x182) = (MCHBAR16(0x182) & ~0x3ff) | 0xc8; + MCHBAR16(0x18a) = (MCHBAR16(0x18a) & ~0x1f1f) | 0x0f0f; + MCHBAR16(0x1b4) = (MCHBAR16(0x1b4) & ~0x8020) | 0x100; + MCHBAR8(0x194) = (MCHBAR8(0x194) & ~0x77) | 0x33; + switch (s->selected_timings.mem_clk) { + default: + case MEM_CLOCK_667MHz: + reg16 = (0xa << 9) | 0xa; + break; + case MEM_CLOCK_800MHz: + reg16 = (0x9 << 9) | 0x9; + break; + } + MCHBAR16(0x19c) = (MCHBAR16(0x19c) & ~0x1e0f) | reg16; + MCHBAR16(0x19c) = (MCHBAR16(0x19c) & ~0x2030) | 0x2010; + udelay(1); + MCHBAR16(0x198) = MCHBAR16(0x198) & ~0x100; + + MCHBAR16(0x1c8) = (MCHBAR16(0x1c8) & ~0x1f) | 0xd; + + udelay(1); + MCHBAR8(0x190) = MCHBAR8(0x190) & ~1; + udelay(1); // 533ns + MCHBAR32(0x198) = MCHBAR32(0x198) & ~0x11554000; + udelay(1); + MCHBAR32(0x198) = MCHBAR32(0x198) & ~0x1455; + udelay(1); + MCHBAR8(0x583) = MCHBAR8(0x583) & ~0x1c; + MCHBAR8(0x983) = MCHBAR8(0x983) & ~0x1c; + udelay(1); // 533ns + MCHBAR8(0x583) = MCHBAR8(0x583) & ~0x3; + MCHBAR8(0x983) = MCHBAR8(0x983) & ~0x3; + udelay(1); // 533ns + + // ME related + MCHBAR32(0x1a0) = (MCHBAR32(0x1a0) & ~0x7ffffff) | 0x551803; + + MCHBAR16(0x1b4) = MCHBAR16(0x1b4) & ~0x800; + MCHBAR8(0x1a8) = MCHBAR8(0x1a8) | 0xf0; + + FOR_EACH_CHANNEL(i) { + reg16 = 0; + MCHBAR16(0x400*i + 0x59c) = MCHBAR16(0x400*i + 0x59c) & ~0x3000; + + reg32 = 0; + FOR_EACH_RANK_IN_CHANNEL(r) { + if (!RANK_IS_POPULATED(s->dimms, i, r)) + reg32 |= 0x111 << r; + } + + MCHBAR32(0x400*i + 0x59c) = (MCHBAR32(0x400*i + 0x59c) & ~0xfff) | reg32; + MCHBAR8(0x400*i + 0x594) = MCHBAR8(0x400*i + 0x594) & ~1; + + if (!CHANNEL_IS_POPULATED(s->dimms, i)) { + printk(BIOS_DEBUG, "No dimms in channel %d\n", i); + reg8 = 0x3f; + } else if (ONLY_DIMMA_IS_POPULATED(s->dimms, i)) { + printk(BIOS_DEBUG, "DimmA populated only in channel %d\n", i); + reg8 = 0x38; + } else if (ONLY_DIMMB_IS_POPULATED(s->dimms, i)) { + printk(BIOS_DEBUG, "DimmB populated only in channel %d\n", i); + reg8 = 0x7; + } else if (BOTH_DIMMS_ARE_POPULATED(s->dimms, i)) { + printk(BIOS_DEBUG, "Both dimms populated in channel %d\n", i); + reg8 = 0; + } else { + die("Unhandled case\n"); + } + + //reg8 = 0x00; // FIXME don't switch on all clocks anyway + + MCHBAR32(0x400*i + 0x5a0) = (MCHBAR32(0x400*i + 0x5a0) & ~0x3f000000) | + ((u32)(reg8 << 24)); + } // END EACH CHANNEL + + MCHBAR8(0x1a8) = MCHBAR8(0x1a8) | 1; + MCHBAR8(0x1a8) = MCHBAR8(0x1a8) & ~0x4; + + // Update DLL timing + MCHBAR8(0x1a4) = MCHBAR8(0x1a4) & ~0x80; + MCHBAR8(0x1a4) = MCHBAR8(0x1a4) | 0x40; + MCHBAR16(0x5f0) = (MCHBAR16(0x5f0) & ~0x400) | 0x400; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + MCHBAR16(0x400*i + 0x5f0) = (MCHBAR16(0x400*i + 0x5f0) & ~0x3fc) | 0x3fc; + MCHBAR32(0x400*i + 0x5fc) = MCHBAR32(0x400*i + 0x5fc) & ~0xcccccccc; + MCHBAR8(0x400*i + 0x5d9) = (MCHBAR8(0x400*i + 0x5d9) & ~0xf0) | 0x70; + MCHBAR16(0x400*i + 0x590) = (MCHBAR16(0x400*i + 0x590) & ~0xffff) | 0x5555; + } + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + const struct dll_setting *setting; + + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) + setting = default_ddr2_667_ctrl; + else + setting = default_ddr2_800_ctrl; + + clkset0(i, &setting[CLKSET0]); + clkset1(i, &setting[CLKSET1]); + ctrlset0(i, &setting[CTRL0]); + ctrlset1(i, &setting[CTRL1]); + ctrlset2(i, &setting[CTRL2]); + ctrlset3(i, &setting[CTRL3]); + cmdset(i, &setting[CMD]); + } + + // XXX if not async mode + MCHBAR16(0x180) = MCHBAR16(0x180) & ~0x8200; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x4; + j = 0; + for (i = 0; i < 16; i++) { + MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x1f) | i; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x10; + while (MCHBAR8(0x180) & 0x10) + ; + if (MCHBAR32(0x184) == 0xffffffff) { + j++; + if (j >= 2) + break; + + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) { + j = 2; + break; + } + } else { + j = 0; + } + } + if (i == 1 || ((i == 0) && s->selected_timings.mem_clk == MEM_CLOCK_667MHz)) { + j = 0; + i++; + for (; i < 16; i++) { + MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x1f) | i; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x4; + while (MCHBAR8(0x180) & 0x10) + ; + if (MCHBAR32(0x184) == 0) { + i++; + break; + } + } + for (; i < 16; i++) { + MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x1f) | i; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x10; + while (MCHBAR8(0x180) & 0x10) + ; + if (MCHBAR32(0x184) == 0xffffffff) { + j++; + if (j >= 2) + break; + } else { + j = 0; + } + } + if (j < 2) { + MCHBAR8(0x1c8) = MCHBAR8(0x1c8) & ~0x1f; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x10; + while (MCHBAR8(0x180) & 0x10) + ; + j = 2; + } + } + + if (j < 2) { + MCHBAR8(0x1c8) = MCHBAR8(0x1c8) & ~0x1f; + async = 1; + } + + clk = 0x1a; + if (async != 1) { + reg8 = MCHBAR8(0x188) & 0x1e; + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz && + s->selected_timings.fsb_clk == FSB_CLOCK_800MHz) { + clk = 0x10; + } else if (s->selected_timings.mem_clk == MEM_CLOCK_800MHz) { + clk = 0x10; + } else { + clk = 0x1a; + } + } + MCHBAR8(0x180) = MCHBAR8(0x180) & ~0x80; + + if ((s->selected_timings.fsb_clk == FSB_CLOCK_800MHz) && + (s->selected_timings.mem_clk == MEM_CLOCK_667MHz)) { + i = MCHBAR8(0x1c8) & 0xf; + i = (i + 10) % 14; + MCHBAR8(0x1c8) = (MCHBAR8(0x1c8) & ~0x1f) | i; + MCHBAR8(0x180) = MCHBAR8(0x180) | 0x10; + while (MCHBAR8(0x180) & 0x10) + ; + } + + reg8 = MCHBAR8(0x188) & ~1; + MCHBAR8(0x188) = reg8; + reg8 &= ~0x3e; + reg8 |= clk; + MCHBAR8(0x188) = reg8; + reg8 |= 1; + MCHBAR8(0x188) = reg8; + + if (s->selected_timings.mem_clk == MEM_CLOCK_1333MHz) + MCHBAR8(0x18c) = MCHBAR8(0x18c) | 1; +} + +static void select_default_dq_dqs_settings(struct sysinfo *s) +{ + int ch, lane; + + FOR_EACH_POPULATED_CHANNEL_AND_BYTELANE(s->dimms, ch, lane) { + switch (s->selected_timings.mem_clk) { + case MEM_CLOCK_667MHz: + memcpy(s->dqs_settings[ch], + default_ddr2_667_dqs, + sizeof(s->dqs_settings[ch])); + memcpy(s->dq_settings[ch], + default_ddr2_667_dq, + sizeof(s->dq_settings[ch])); + s->rt_dqs[ch][lane].tap = 7; + s->rt_dqs[ch][lane].pi = 2; + break; + case MEM_CLOCK_800MHz: + if (s->spd_type == DDR2) { + memcpy(s->dqs_settings[ch], + default_ddr2_800_dqs, + sizeof(s->dqs_settings[ch])); + memcpy(s->dq_settings[ch], + default_ddr2_800_dq, + sizeof(s->dq_settings[ch])); + s->rt_dqs[ch][lane].tap = 7; + s->rt_dqs[ch][lane].pi = 0; + } else { /* DDR3 */ + /* TODO: DDR3 write DQ-DQS */ + s->rt_dqs[ch][lane].tap = 6; + s->rt_dqs[ch][lane].pi = 2; + } + break; + case MEM_CLOCK_1066MHz: + /* TODO: DDR3 write DQ-DQS */ + s->rt_dqs[ch][lane].tap = 5; + s->rt_dqs[ch][lane].pi = 2; + break; + case MEM_CLOCK_1333MHz: + /* TODO: DDR3 write DQ-DQS */ + s->rt_dqs[ch][lane].tap = 7; + s->rt_dqs[ch][lane].pi = 0; + break; + default: /* not supported */ + break; + } + } +} + +/* + * It looks like only the RT DQS register for the first rank + * is used for all ranks. Just set all the 'unused' RT DQS registers + * to the same as rank 0, out of precaution. + */ +static void set_all_dq_dqs_dll_settings(struct sysinfo *s) +{ + // Program DQ/DQS dll settings + int ch, lane, rank; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + FOR_EACH_BYTELANE(lane) { + FOR_EACH_RANK_IN_CHANNEL(rank) { + rt_set_dqs(ch, lane, rank, + &s->rt_dqs[ch][lane]); + } + dqsset(ch, lane, &s->dqs_settings[ch][lane]); + dqset(ch, lane, &s->dq_settings[ch][lane]); + } + } +} + +static void prog_rcomp(struct sysinfo *s) +{ + u8 i, j, k; + u32 x32a[8] = { 0x04040404, 0x06050505, 0x09090807, 0x0D0C0B0A, + 0x04040404, 0x08070605, 0x0C0B0A09, 0x100F0E0D }; + u16 x378[6] = { 0, 0xAAAA, 0x7777, 0x7777, 0x7777, 0x7777 }; + u32 x382[6] = { 0, 0x02020202, 0x02020202, 0x02020202, 0x04030303, 0x04030303 }; + u32 x386[6] = { 0, 0x03020202, 0x03020202, 0x03020202, 0x05040404, 0x05040404 }; + u32 x38a[6] = { 0, 0x04040303, 0x04040303, 0x04040303, 0x07070605, 0x07070605 }; + u32 x38e[6] = { 0, 0x06060505, 0x06060505, 0x06060505, 0x09090808, 0x09090808 }; + u32 x392[6] = { 0, 0x02020202, 0x02020202, 0x02020202, 0x03030202, 0x03030202 }; + u32 x396[6] = { 0, 0x03030202, 0x03030202, 0x03030202, 0x05040303, 0x05040303 }; + u32 x39a[6] = { 0, 0x04040403, 0x04040403, 0x04040403, 0x07070605, 0x07070605 }; + u32 x39e[6] = { 0, 0x06060505, 0x06060505, 0x06060505, 0x08080808, 0x08080808 }; + u16 addr[6] = { 0x31c, 0x374, 0x3a2, 0x3d0, 0x3fe, 0x42c }; + u8 bit[6] = { 0, 0, 1, 1, 0, 0 }; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + for (j = 0; j < 6; j++) { + if (j == 0) { + MCHBAR32(0x400*i + addr[j]) = + (MCHBAR32(0x400*i + addr[j]) & ~0xff000) | 0xaa000; + MCHBAR16(0x400*i + 0x320) = (MCHBAR16(0x400*i + 0x320) & ~0xffff) | 0x6666; + for (k = 0; k < 8; k++) { + MCHBAR32(0x400*i + addr[j] + 0xe + (k << 2)) = + (MCHBAR32(0x400*i + addr[j] + 0xe + (k << 2)) & ~0x3f3f3f3f) | x32a[k]; + MCHBAR32(0x400*i + addr[j] + 0x2e + (k << 2)) = + (MCHBAR32(0x400*i + addr[j] + 0x2e + (k << 2)) & ~0x3f3f3f3f) | x32a[k]; + } + } else { + MCHBAR16(0x400*i + addr[j]) = (MCHBAR16(0x400*i + addr[j]) & ~0xf000) | 0xa000; + MCHBAR16(0x400*i + addr[j] + 4) = (MCHBAR16(0x400*i + addr[j] + 4) & ~0xffff) | + x378[j]; + MCHBAR32(0x400*i + addr[j] + 0xe) = + (MCHBAR32(0x400*i + addr[j] + 0xe) & ~0x3f3f3f3f) | x382[j]; + MCHBAR32(0x400*i + addr[j] + 0x12) = + (MCHBAR32(0x400*i + addr[j] + 0x12) & ~0x3f3f3f3f) | x386[j]; + MCHBAR32(0x400*i + addr[j] + 0x16) = + (MCHBAR32(0x400*i + addr[j] + 0x16) & ~0x3f3f3f3f) | x38a[j]; + MCHBAR32(0x400*i + addr[j] + 0x1a) = + (MCHBAR32(0x400*i + addr[j] + 0x1a) & ~0x3f3f3f3f) | x38e[j]; + MCHBAR32(0x400*i + addr[j] + 0x1e) = + (MCHBAR32(0x400*i + addr[j] + 0x1e) & ~0x3f3f3f3f) | x392[j]; + MCHBAR32(0x400*i + addr[j] + 0x22) = + (MCHBAR32(0x400*i + addr[j] + 0x22) & ~0x3f3f3f3f) | x396[j]; + MCHBAR32(0x400*i + addr[j] + 0x26) = + (MCHBAR32(0x400*i + addr[j] + 0x26) & ~0x3f3f3f3f) | x39a[j]; + MCHBAR32(0x400*i + addr[j] + 0x2a) = + (MCHBAR32(0x400*i + addr[j] + 0x2a) & ~0x3f3f3f3f) | x39e[j]; + } + MCHBAR8(0x400*i + addr[j]) = (MCHBAR8(0x400*i + addr[j]) & ~1) | bit[j]; + } + MCHBAR8(0x400*i + 0x45a) = (MCHBAR8(0x400*i + 0x45a) & ~0x3f) | 0x12; + MCHBAR8(0x400*i + 0x45e) = (MCHBAR8(0x400*i + 0x45e) & ~0x3f) | 0x12; + MCHBAR8(0x400*i + 0x462) = (MCHBAR8(0x400*i + 0x462) & ~0x3f) | 0x12; + MCHBAR8(0x400*i + 0x466) = (MCHBAR8(0x400*i + 0x466) & ~0x3f) | 0x12; + } // END EACH POPULATED CHANNEL + + MCHBAR32(0x134) = (MCHBAR32(0x134) & ~0x63c00) | 0x63c00; + MCHBAR16(0x174) = (MCHBAR16(0x174) & ~0x63ff) | 0x63ff; + MCHBAR16(0x178) = 0x0135; + MCHBAR32(0x130) = (MCHBAR32(0x130) & ~0x7bdffe0) | 0x7a9ffa0; + + if (!CHANNEL_IS_POPULATED(s->dimms, 0)) + MCHBAR32(0x130) = MCHBAR32(0x130) & ~(1 << 27); + if (!CHANNEL_IS_POPULATED(s->dimms, 1)) + MCHBAR32(0x130) = MCHBAR32(0x130) & ~(1 << 28); + + MCHBAR8(0x130) = MCHBAR8(0x130) | 1; +} + +static void program_odt(struct sysinfo *s) +{ + u8 i; + u16 odt[16][2] = { + { 0x0000, 0x0000 }, // NC_NC + { 0x0000, 0x0001 }, // x8SS_NC + { 0x0000, 0x0011 }, // x8DS_NC + { 0x0000, 0x0001 }, // x16SS_NC + { 0x0004, 0x0000 }, // NC_x8SS + { 0x0101, 0x0404 }, // x8SS_x8SS + { 0x0101, 0x4444 }, // x8DS_x8SS + { 0x0101, 0x0404 }, // x16SS_x8SS + { 0x0044, 0x0000 }, // NC_x8DS + { 0x1111, 0x0404 }, // x8SS_x8DS + { 0x1111, 0x4444 }, // x8DS_x8DS + { 0x1111, 0x0404 }, // x16SS_x8DS + { 0x0004, 0x0000 }, // NC_x16SS + { 0x0101, 0x0404 }, // x8SS_x16SS + { 0x0101, 0x4444 }, // x8DS_x16SS + { 0x0101, 0x0404 }, // x16SS_x16SS + }; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { + MCHBAR16(0x400*i + 0x298) = odt[s->dimm_config[i]][1]; + MCHBAR16(0x400*i + 0x294) = odt[s->dimm_config[i]][0]; + MCHBAR16(0x400*i + 0x29c) = (MCHBAR16(0x400*i + 0x29c) & ~0xfff) | 0x66b; + MCHBAR32(0x400*i + 0x260) = (MCHBAR32(0x400*i + 0x260) & ~0x70e3c00) | 0x3063c00; + } +} + +static void pre_jedec_memory_map(void) +{ + /* + * Configure the memory mapping in stacked mode (channel 1 being mapped + * above channel 0) and with 128M per rank. + * This simplifies dram trainings a lot since those need a test address. + * + * +-------------+ => 0 + * | ch 0, rank 0| + * +-------------+ => 0x8000000 (128M) + * | ch 0, rank 1| + * +-------------+ => 0x10000000 (256M) + * | ch 0, rank 2| + * +-------------+ => 0x18000000 (384M) + * | ch 0, rank 3| + * +-------------+ => 0x20000000 (512M) + * | ch 1, rank 0| + * +-------------+ => 0x28000000 (640M) + * | ch 1, rank 1| + * +-------------+ => 0x30000000 (768M) + * | ch 1, rank 2| + * +-------------+ => 0x38000000 (896M) + * | ch 1, rank 3| + * +-------------+ + * + * After all trainings are done this is set to the real values specified + * by the SPD. + */ + /* Set rank 0-3 populated */ + MCHBAR32(C0CKECTRL) = (MCHBAR32(C0CKECTRL) & ~1) | 0xf00000; + MCHBAR32(C1CKECTRL) = (MCHBAR32(C1CKECTRL) & ~1) | 0xf00000; + /* Set size of each rank to 128M */ + MCHBAR16(C0DRA01) = 0x0101; + MCHBAR16(C0DRA23) = 0x0101; + MCHBAR16(C1DRA01) = 0x0101; + MCHBAR16(C1DRA23) = 0x0101; + MCHBAR16(C0DRB0) = 0x0002; + MCHBAR16(C0DRB1) = 0x0004; + MCHBAR16(C0DRB2) = 0x0006; + MCHBAR16(C0DRB3) = 0x0008; + MCHBAR16(C1DRB0) = 0x0002; + MCHBAR16(C1DRB1) = 0x0004; + MCHBAR16(C1DRB2) = 0x0006; + /* + * For some reason the boundary needs to be 0x10 instead of 0x8 here. + * Vendor does this too... + */ + MCHBAR16(C1DRB3) = 0x0010; + MCHBAR8(0x111) = MCHBAR8(0x111) | STACKED_MEM; + MCHBAR32(0x104) = 0; + MCHBAR16(0x102) = 0x400; + MCHBAR8(0x110) = (2 << 5) | (3 << 3); + MCHBAR16(0x10e) = 0; + MCHBAR32(0x108) = 0; + pci_write_config16(PCI_DEV(0, 0, 0), D0F0_TOLUD, 0x4000); + /* TOM(64M unit) = 1G = TOTAL_CHANNELS * RANKS_PER_CHANNEL * 128M */ + pci_write_config16(PCI_DEV(0, 0, 0), D0F0_TOM, 0x10); + /* TOUUD(1M unit) = 1G = TOTAL_CHANNELS * RANKS_PER_CHANNEL * 128M */ + pci_write_config16(PCI_DEV(0, 0, 0), D0F0_TOUUD, 0x0400); + pci_write_config32(PCI_DEV(0, 0, 0), D0F0_GBSM, 0x40000000); + pci_write_config32(PCI_DEV(0, 0, 0), D0F0_BGSM, 0x40000000); + pci_write_config32(PCI_DEV(0, 0, 0), D0F0_TSEG, 0x40000000); +} + +u32 test_address(int channel, int rank) +{ + ASSERT(channel <= 1 && rank < 4); + return channel * 512 * MiB + rank * 128 * MiB; +} + +static void dojedec_ddr2(u8 r, u8 ch, u8 cmd, u16 val) +{ + u32 addr = test_address(ch, r); + volatile u32 rubbish; + + MCHBAR8(0x271) = (MCHBAR8(0x271) & ~0x3e) | cmd; + MCHBAR8(0x671) = (MCHBAR8(0x671) & ~0x3e) | cmd; + rubbish = read32((void *)((val<<3) | addr)); + udelay(10); + MCHBAR8(0x271) = (MCHBAR8(0x271) & ~0x3e) | NORMALOP_CMD; + MCHBAR8(0x671) = (MCHBAR8(0x671) & ~0x3e) | NORMALOP_CMD; +} + +static void jedec_ddr2(struct sysinfo *s) +{ + u8 i; + u16 mrsval, ch, r, v; + + u8 odt[16][4] = { + {0x00, 0x00, 0x00, 0x00}, + {0x01, 0x00, 0x00, 0x00}, + {0x01, 0x01, 0x00, 0x00}, + {0x01, 0x00, 0x00, 0x00}, + {0x00, 0x00, 0x01, 0x00}, + {0x11, 0x00, 0x11, 0x00}, + {0x11, 0x11, 0x11, 0x00}, + {0x11, 0x00, 0x11, 0x00}, + {0x00, 0x00, 0x01, 0x01}, + {0x11, 0x00, 0x11, 0x11}, + {0x11, 0x11, 0x11, 0x11}, + {0x11, 0x00, 0x11, 0x11}, + {0x00, 0x00, 0x01, 0x00}, + {0x11, 0x00, 0x11, 0x00}, + {0x11, 0x11, 0x11, 0x00}, + {0x11, 0x00, 0x11, 0x00} + }; + + u16 jedec[12][2] = { + {NOP_CMD, 0x0}, + {PRECHARGE_CMD, 0x0}, + {EMRS2_CMD, 0x0}, + {EMRS3_CMD, 0x0}, + {EMRS1_CMD, 0x0}, + {MRS_CMD, 0x100}, // DLL Reset + {PRECHARGE_CMD, 0x0}, + {CBR_CMD, 0x0}, + {CBR_CMD, 0x0}, + {MRS_CMD, 0x0}, // DLL out of reset + {EMRS1_CMD, 0x380}, // OCD calib default + {EMRS1_CMD, 0x0} + }; + + mrsval = (s->selected_timings.CAS << 4) | ((s->selected_timings.tWR - 1) << 9) | 0xb; + + printk(BIOS_DEBUG, "MRS...\n"); + + udelay(200); + + FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { + printk(BIOS_DEBUG, "CH%d: Found Rank %d\n", ch, r); + for (i = 0; i < 12; i++) { + v = jedec[i][1]; + switch (jedec[i][0]) { + case EMRS1_CMD: + v |= (odt[s->dimm_config[ch]][r] << 2); + break; + case MRS_CMD: + v |= mrsval; + break; + default: + break; + } + dojedec_ddr2(r, ch, jedec[i][0], v); + udelay(1); + printk(RAM_SPEW, "Jedec step %d\n", i); + } + } + printk(BIOS_DEBUG, "MRS done\n"); +} + +static void sdram_recover_receive_enable(const struct sysinfo *s) +{ + u32 reg32; + u16 medium, coarse_offset; + u8 pi_tap; + int lane, channel; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, channel) { + medium = 0; + coarse_offset = 0; + reg32 = MCHBAR32(0x400 * channel + 0x248); + reg32 &= ~0xf0000; + reg32 |= s->rcven_t[channel].min_common_coarse << 16; + MCHBAR32(0x400 * channel + 0x248) = reg32; + + FOR_EACH_BYTELANE(lane) { + medium |= s->rcven_t[channel].medium[lane] + << (lane * 2); + coarse_offset |= + (s->rcven_t[channel].coarse_offset[lane] & 0x3) + << (lane * 2); + + pi_tap = MCHBAR8(0x400 * channel + 0x560 + lane * 4); + pi_tap &= ~0x7f; + pi_tap |= s->rcven_t[channel].tap[lane]; + pi_tap |= s->rcven_t[channel].pi[lane] << 4; + MCHBAR8(0x400 * channel + 0x560 + lane * 4) = pi_tap; + } + MCHBAR16(0x400 * channel + 0x58c) = medium; + MCHBAR16(0x400 * channel + 0x5fa) = coarse_offset; + } +} + +static void sdram_program_receive_enable(struct sysinfo *s, int fast_boot) +{ + /* Program Receive Enable Timings */ + if (fast_boot) + sdram_recover_receive_enable(s); + else + rcven(s); +} + +static void set_dradrb(struct sysinfo *s) +{ + u8 map, i, ch, r, rankpop0, rankpop1; + u32 c0dra = 0; + u32 c1dra = 0; + u32 c0drb = 0; + u32 c1drb = 0; + u32 dra; + u32 dra0; + u32 dra1; + u16 totalmemorymb; + u32 dual_channel_size, single_channel_size, single_channel_offset; + u32 size_ch0, size_ch1, size_me; + u8 dratab[2][2][2][4] = { + { + { + {0xff, 0xff, 0xff, 0xff}, + {0xff, 0x00, 0x02, 0xff} + }, + { + {0xff, 0x01, 0xff, 0xff}, + {0xff, 0x03, 0xff, 0xff} + } + }, + { + { + {0xff, 0xff, 0xff, 0xff}, + {0xff, 0x04, 0x06, 0x08} + }, + { + {0xff, 0xff, 0xff, 0xff}, + {0x05, 0x07, 0x09, 0xff} + } + } + }; + + u8 drbtab[10] = {0x04, 0x02, 0x08, 0x04, 0x08, 0x04, 0x10, 0x08, 0x20, 0x10}; + + // DRA + rankpop0 = 0; + rankpop1 = 0; + FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { + if (s->dimms[ch<<1].card_type != RAW_CARD_UNPOPULATED + && (r) < s->dimms[ch<<1].ranks) + i = ch << 1; + else + i = (ch << 1) + 1; + + dra = dratab[s->dimms[i].n_banks] + [s->dimms[i].width] + [s->dimms[i].cols-9] + [s->dimms[i].rows-12]; + if (s->dimms[i].n_banks == N_BANKS_8) + dra |= 0x80; + if (ch == 0) { + c0dra |= dra << (r*8); + rankpop0 |= 1 << r; + } else { + c1dra |= dra << (r*8); + rankpop1 |= 1 << r; + } + } + MCHBAR32(0x208) = c0dra; + MCHBAR32(0x608) = c1dra; + + MCHBAR8(0x262) = (MCHBAR8(0x262) & ~0xf0) | ((rankpop0 << 4) & 0xf0); + MCHBAR8(0x662) = (MCHBAR8(0x662) & ~0xf0) | ((rankpop1 << 4) & 0xf0); + + if (ONLY_DIMMA_IS_POPULATED(s->dimms, 0) || + ONLY_DIMMB_IS_POPULATED(s->dimms, 0)) + MCHBAR8(0x260) = MCHBAR8(0x260) | 1; + if (ONLY_DIMMA_IS_POPULATED(s->dimms, 1) || + ONLY_DIMMB_IS_POPULATED(s->dimms, 1)) + MCHBAR8(0x660) = MCHBAR8(0x660) | 1; + + // DRB + FOR_EACH_RANK(ch, r) { + if (ch == 0) { + if (RANK_IS_POPULATED(s->dimms, ch, r)) { + dra0 = (c0dra >> (8*r)) & 0x7f; + c0drb = (u16)(c0drb + drbtab[dra0]); + } + MCHBAR16(0x200 + 2*r) = c0drb; + } else { + if (RANK_IS_POPULATED(s->dimms, ch, r)) { + dra1 = (c1dra >> (8*r)) & 0x7f; + c1drb = (u16)(c1drb + drbtab[dra1]); + } + MCHBAR16(0x600 + 2*r) = c1drb; + } + } + + s->channel_capacity[0] = c0drb << 6; + s->channel_capacity[1] = c1drb << 6; + totalmemorymb = s->channel_capacity[0] + s->channel_capacity[1]; + printk(BIOS_DEBUG, "Total memory: %d + %d = %dMiB\n", + s->channel_capacity[0], s->channel_capacity[1], totalmemorymb); + + /* Populated channel sizes in MiB */ + size_ch0 = s->channel_capacity[0]; + size_ch1 = s->channel_capacity[1]; + size_me = ME_UMA_SIZEMB; + + MCHBAR8(0x111) = MCHBAR8(0x111) & ~0x2; + MCHBAR8(0x111) = MCHBAR8(0x111) | (1 << 4); + + if (size_me == 0) { + dual_channel_size = MIN(size_ch0, size_ch1) * 2; + } else { + if (size_ch0 == 0) { + /* ME needs ram on CH0 */ + size_me = 0; + /* TOTEST: bailout? */ + } else { + /* Set ME UMA size in MiB */ + MCHBAR16(0x100) = size_me; + /* Set ME UMA Present bit */ + MCHBAR32(0x111) = MCHBAR32(0x111) | 1; + } + dual_channel_size = MIN(size_ch0 - size_me, size_ch1) * 2; + } + MCHBAR16(0x104) = dual_channel_size; + single_channel_size = size_ch0 + size_ch1 - dual_channel_size; + MCHBAR16(0x102) = single_channel_size; + + map = 0; + if (size_ch0 == 0) + map = 0; + else if (size_ch1 == 0) + map |= 0x20; + else + map |= 0x40; + + if (dual_channel_size == 0) + map |= 0x18; + /* Enable flex mode, we hardcode this everywhere */ + if (size_me == 0) { + map |= 0x04; + if (size_ch0 <= size_ch1) + map |= 0x01; + } else { + if (size_ch0 - size_me < size_ch1) + map |= 0x04; + } + + MCHBAR8(0x110) = map; + MCHBAR16(0x10e) = 0; + + /* + * "108h[15:0] Single Channel Offset for Ch0" + * This is the 'limit' of the part on CH0 that cannot be matched + * with memory on CH1. MCHBAR16(0x10a) is where the dual channel + * memory on ch0s end and MCHBAR16(0x108) is the limit of the single + * channel size on ch0. + */ + if (size_me == 0) { + if (size_ch0 > size_ch1) + single_channel_offset = dual_channel_size / 2 + + single_channel_size; + else + single_channel_offset = dual_channel_size / 2; + } else { + if ((size_ch0 > size_ch1) && ((map & 0x7) == 4)) + single_channel_offset = dual_channel_size / 2 + + single_channel_size; + else + single_channel_offset = dual_channel_size / 2 + + size_me; + } + + MCHBAR16(0x108) = single_channel_offset; + MCHBAR16(0x10a) = dual_channel_size / 2; +} + +static void configure_mmap(struct sysinfo *s) +{ + bool reclaim; + u32 gfxsize, gttsize, tsegsize, mmiosize, tom, tolud, touud; + u32 gfxbase, gttbase, tsegbase, reclaimbase, reclaimlimit; + u32 mmiostart, umasizem; + u16 ggc; + u16 ggc2uma[] = { 0, 1, 4, 8, 16, 32, 48, 64, 128, 256, 96, + 160, 224, 352 }; + u8 ggc2gtt[] = { 0, 1, 0, 2, 0, 0, 0, 0, 0, 2, 3, 4}; + u8 reg8; + + ggc = pci_read_config16(PCI_DEV(0, 0, 0), 0x52); + gfxsize = ggc2uma[(ggc & 0xf0) >> 4]; + gttsize = ggc2gtt[(ggc & 0xf00) >> 8]; + tsegsize = 8; // 8MB TSEG + mmiosize = 0x800; // 2GB MMIO + umasizem = gfxsize + gttsize + tsegsize; + mmiostart = 0x1000 - mmiosize + umasizem; + tom = s->channel_capacity[0] + s->channel_capacity[1] - ME_UMA_SIZEMB; + tolud = MIN(mmiostart, tom); + + reclaim = false; + 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; + + pci_write_config16(PCI_DEV(0, 0, 0), 0xb0, tolud << 4); + pci_write_config16(PCI_DEV(0, 0, 0), 0xa0, 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), 0xa2, touud); + pci_write_config32(PCI_DEV(0, 0, 0), 0xa4, gfxbase << 20); + pci_write_config32(PCI_DEV(0, 0, 0), 0xa8, gttbase << 20); + /* Enable and set tseg size to 8M */ + reg8 = pci_read_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC); + reg8 &= ~0x7; + reg8 |= (2 << 1) | (1 << 0); /* 8M and TSEG_Enable */ + pci_write_config8(PCI_DEV(0, 0, 0), D0F0_ESMRAMC, reg8); + pci_write_config32(PCI_DEV(0, 0, 0), 0xac, tsegbase << 20); +} + +static void set_enhanced_mode(struct sysinfo *s) +{ + u8 ch, reg8; + + MCHBAR32(0xfb0) = 0x1000d024; + MCHBAR32(0xfb4) = 0xc842; + MCHBAR32(0xfbc) = 0xf; + MCHBAR32(0xfc4) = 0xfe22244; + MCHBAR8(0x12f) = 0x5c; + MCHBAR8(0xfb0) = (MCHBAR8(0xfb0) & ~1) | 1; + MCHBAR8(0x12f) = MCHBAR8(0x12f) | 0x2; + MCHBAR8(0x6c0) = (MCHBAR8(0x6c0) & ~0xf0) | 0xa0; + MCHBAR32(0xfa8) = 0x30d400; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + MCHBAR8(0x400*ch + 0x26c) = MCHBAR8(0x400*ch + 0x26c) | 1; + MCHBAR32(0x400*ch + 0x278) = 0x88141881; + MCHBAR16(0x400*ch + 0x27c) = 0x0041; + MCHBAR8(0x400*ch + 0x292) = 0xf2; + MCHBAR16(0x400*ch + 0x272) = MCHBAR16(0x400*ch + 0x272) | 0x100; + MCHBAR8(0x400*ch + 0x243) = (MCHBAR8(0x400*ch + 0x243) & ~0x2) | 1; + MCHBAR32(0x400*ch + 0x288) = 0x8040200; + MCHBAR32(0x400*ch + 0x28c) = 0xff402010; + MCHBAR32(0x400*ch + 0x290) = 0x4f2091c; + } + + reg8 = pci_read_config8(PCI_DEV(0, 0, 0), 0xf0); + pci_write_config8(PCI_DEV(0, 0, 0), 0xf0, reg8 | 1); + MCHBAR32(0xfa0) = (MCHBAR32(0xfa0) & ~0x20002) | 0x2; + MCHBAR32(0xfa4) = (MCHBAR32(0xfa4) & ~0x219100c3) | 0x219100c2; + MCHBAR32(0x2c) = 0x44a53; + MCHBAR32(0x30) = 0x1f5a86; + MCHBAR32(0x34) = 0x1902810; + MCHBAR32(0x38) = 0xf7000000; + MCHBAR32(0x3c) = 0x23014410; + MCHBAR32(0x40) = (MCHBAR32(0x40) & ~0x8f038000) | 0x8f038000; + MCHBAR32(0x20) = 0x33001; + pci_write_config8(PCI_DEV(0, 0, 0), 0xf0, reg8 & ~1); +} + +static void power_settings(struct sysinfo *s) +{ + u32 reg1, reg2, reg3, reg4, clkgate, x592; + u8 lane, ch; + u8 twl = 0; + u16 x264, x23c; + + twl = s->selected_timings.CAS - 1; + x264 = 0x78; + switch (s->selected_timings.mem_clk) { + default: + case MEM_CLOCK_667MHz: + reg1 = 0x99; + reg2 = 0x1048a9; + clkgate = 0x230000; + x23c = 0x7a89; + break; + case MEM_CLOCK_800MHz: + if (s->selected_timings.CAS == 5) { + reg1 = 0x19a; + reg2 = 0x1048aa; + } else { + reg1 = 0x9a; + reg2 = 0x2158aa; + x264 = 0x89; + } + clkgate = 0x280000; + x23c = 0x7b89; + break; + } + reg3 = 0x232; + reg4 = 0x2864; + + if (CHANNEL_IS_POPULATED(s->dimms, 0) && CHANNEL_IS_POPULATED(s->dimms, 1)) + MCHBAR32(0x14) = 0x0010461f; + else + MCHBAR32(0x14) = 0x0010691f; + MCHBAR32(0x18) = 0xdf6437f7; + MCHBAR32(0x1c) = 0x0; + MCHBAR32(0x24) = (MCHBAR32(0x24) & ~0xe0000000) | 0x30000000; + MCHBAR32(0x44) = (MCHBAR32(0x44) & ~0x1fef0000) | 0x6b0000; + MCHBAR16(0x115) = (u16) reg1; + MCHBAR32(0x117) = (MCHBAR32(0x117) & ~0xffffff) | reg2; + MCHBAR8(0x124) = 0x7; + MCHBAR16(0x12a) = (MCHBAR16(0x12a) & 0) | 0x80; + MCHBAR8(0x12c) = (MCHBAR8(0x12c) & 0) | 0xa0; + MCHBAR16(0x174) = MCHBAR16(0x174) & ~(1 << 15); + MCHBAR16(0x188) = (MCHBAR16(0x188) & ~0x1f00) | 0x1f00; + MCHBAR8(0x18c) = MCHBAR8(0x18c) & ~0x8; + MCHBAR8(0x192) = (MCHBAR8(0x192) & ~1) | 1; + MCHBAR8(0x193) = (MCHBAR8(0x193) & ~0xf) | 0xf; + MCHBAR16(0x1b4) = (MCHBAR16(0x1b4) & ~0x480) | 0x80; + MCHBAR16(0x210) = (MCHBAR16(0x210) & ~0x1fff) | 0x3f; // | clockgatingiii + MCHBAR32(0x6d1) = (MCHBAR32(0x6d1) & ~0xff03ff) | 0x100 | clkgate; + MCHBAR8(0x212) = (MCHBAR8(0x212) & ~0x7f) | 0x7f; + MCHBAR32(0x2c0) = (MCHBAR32(0x2c0) & ~0xffff0) | 0xcc5f0; + MCHBAR8(0x2c4) = (MCHBAR8(0x2c4) & ~0x70) | 0x70; + MCHBAR32(0x2d1) = (MCHBAR32(0x2d1) & ~0xffffff) | 0xff2831; // | clockgatingi + MCHBAR32(0x2d4) = 0x40453600; + MCHBAR32(0x300) = 0xc0b0a08; + MCHBAR32(0x304) = 0x6040201; + MCHBAR32(0x30c) = (MCHBAR32(0x30c) & ~0x43c0f) | 0x41405; + MCHBAR16(0x610) = 0x232; + MCHBAR16(0x612) = 0x2864; + MCHBAR32(0x62c) = (MCHBAR32(0x62c) & ~0xc000000) | 0x4000000; + MCHBAR32(0xae4) = 0; + MCHBAR32(0xc00) = (MCHBAR32(0xc00) & ~0xf0000) | 0x10000; + MCHBAR32(0xf00) = 0x393a3b3c; + MCHBAR32(0xf04) = 0x3d3e3f40; + MCHBAR32(0xf08) = 0x393a3b3c; + MCHBAR32(0xf0c) = 0x3d3e3f40; + MCHBAR32(0xf18) = MCHBAR32(0xf18) & ~0xfff00001; + MCHBAR32(0xf48) = 0xfff0ffe0; + MCHBAR32(0xf4c) = 0xffc0ff00; + MCHBAR32(0xf50) = 0xfc00f000; + MCHBAR32(0xf54) = 0xc0008000; + MCHBAR32(0xf6c) = (MCHBAR32(0xf6c) & ~0xffff0000) | 0xffff0000; + MCHBAR32(0xfac) = MCHBAR32(0xfac) & ~0x80000000; + MCHBAR32(0xfb8) = MCHBAR32(0xfb8) & ~0xff000000; + MCHBAR32(0xfbc) = (MCHBAR32(0xfbc) & ~0x7f800) | 0xf000; + MCHBAR32(0x1104) = 0x3003232; + MCHBAR32(0x1108) = 0x74; + if (s->selected_timings.fsb_clk == FSB_CLOCK_800MHz) + MCHBAR32(0x110c) = 0xaa; + else + MCHBAR32(0x110c) = 0x100; + MCHBAR32(0x1110) = 0x10810350 & ~0x78; + MCHBAR32(0x1114) = 0; + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) + twl = 5; + else + twl = 6; + x592 = 0xff; + if (pci_read_config8(PCI_DEV(0, 0, 0), 0x8) < 3) + x592 = ~0x4; + + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + MCHBAR8(0x400*ch + 0x239) = twl + 15; + MCHBAR16(0x400*ch + 0x23c) = x23c; + MCHBAR32(0x400*ch + 0x248) = (MCHBAR32(0x400*ch + 0x248) & ~0x706033) | 0x406033; + MCHBAR32(0x400*ch + 0x260) = (MCHBAR32(0x400*ch + 0x260) & ~(1 << 16)) | (1 << 16); + MCHBAR8(0x400*ch + 0x264) = x264; + MCHBAR8(0x400*ch + 0x592) = (MCHBAR8(0x400*ch + 0x592) & ~0x3f) | (0x3c & x592); + MCHBAR8(0x400*ch + 0x593) = (MCHBAR8(0x400*ch + 0x593) & ~0x1f) | 0x1e; + } + + for (lane = 0; lane < 8; lane++) + MCHBAR8(0x561 + (lane << 2)) = MCHBAR8(0x561 + (lane << 2)) & ~(1 << 3); +} + +void do_raminit(struct sysinfo *s, int fast_boot) +{ + u8 ch; + u8 r, bank; + u32 reg32; + + if (s->boot_path != BOOT_PATH_WARM_RESET) { + // Clear self refresh + MCHBAR32(PMSTS_MCHBAR) = MCHBAR32(PMSTS_MCHBAR) + | PMSTS_BOTH_SELFREFRESH; + + // Clear host clk gate reg + MCHBAR32(0x1c) = MCHBAR32(0x1c) | 0xffffffff; + + // Select DDR2 + MCHBAR8(0x1a8) = MCHBAR8(0x1a8) & ~0x4; + + // Set freq + MCHBAR32(0xc00) = (MCHBAR32(0xc00) & ~0x70) | + (s->selected_timings.mem_clk << 4) | (1 << 10); + + // Overwrite freq if chipset rejects it + s->selected_timings.mem_clk = (MCHBAR8(0xc00) & 0x70) >> 4; + if (s->selected_timings.mem_clk > (s->max_fsb + 3)) + die("Error: DDR is faster than FSB, halt\n"); + } + + // Program clock crossing + program_crossclock(s); + printk(BIOS_DEBUG, "Done clk crossing\n"); + + if (s->boot_path != BOOT_PATH_WARM_RESET) { + setioclk_dram(s); + printk(BIOS_DEBUG, "Done I/O clk\n"); + } + + // Grant to launch + launch_dram(s); + printk(BIOS_DEBUG, "Done launch\n"); + + // Program DRAM timings + program_timings(s); + printk(BIOS_DEBUG, "Done timings\n"); + + // Program DLL + program_dll(s); + if (!fast_boot) + select_default_dq_dqs_settings(s); + set_all_dq_dqs_dll_settings(s); + + // RCOMP + if (s->boot_path != BOOT_PATH_WARM_RESET) { + prog_rcomp(s); + printk(BIOS_DEBUG, "RCOMP\n"); + } + + // ODT + program_odt(s); + printk(BIOS_DEBUG, "Done ODT\n"); + + // RCOMP update + if (s->boot_path != BOOT_PATH_WARM_RESET) { + while ((MCHBAR8(0x130) & 1) != 0) + ; + printk(BIOS_DEBUG, "Done RCOMP update\n"); + } + + pre_jedec_memory_map(); + + // IOBUFACT + if (CHANNEL_IS_POPULATED(s->dimms, 0)) { + MCHBAR8(0x5dd) = (MCHBAR8(0x5dd) & ~0x3f) | 0x3f; + MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 0x7; + } + if (CHANNEL_IS_POPULATED(s->dimms, 1)) { + if (pci_read_config8(PCI_DEV(0, 0, 0), 0x8) < 2) { + MCHBAR8(0x5dd) = (MCHBAR8(0x5dd) & ~0x3f) | 0x3f; + MCHBAR8(0x5d8) = MCHBAR8(0x5d8) | 1; + } + MCHBAR8(0x9dd) = (MCHBAR8(0x9dd) & ~0x3f) | 0x3f; + MCHBAR8(0x9d8) = MCHBAR8(0x9d8) | 0x7; + } + + // Pre jedec + MCHBAR8(0x40) = MCHBAR8(0x40) | 0x2; + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + MCHBAR32(0x400*ch + 0x260) = MCHBAR32(0x400*ch + 0x260) | (1 << 27); + } + MCHBAR16(0x212) = (MCHBAR16(0x212) & ~0xf000) | 0xf000; + MCHBAR16(0x212) = (MCHBAR16(0x212) & ~0xf00) | 0xf00; + printk(BIOS_DEBUG, "Done pre-jedec\n"); + + // JEDEC reset + if (s->boot_path != BOOT_PATH_RESUME) + jedec_ddr2(s); + + printk(BIOS_DEBUG, "Done jedec steps\n"); + + // After JEDEC reset + MCHBAR8(0x40) = MCHBAR8(0x40) & ~0x2; + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) + reg32 = (2 << 18) | (3 << 13) | (5 << 8); + else + reg32 = (2 << 18) | (3 << 13) | (4 << 8); + MCHBAR32(0x400*ch + 0x274) = (MCHBAR32(0x400*ch + 0x274) & ~0xfff00) | reg32; + MCHBAR8(0x400*ch + 0x274) = MCHBAR8(0x400*ch + 0x274) & ~0x80; + MCHBAR8(0x400*ch + 0x26c) = MCHBAR8(0x400*ch + 0x26c) | 1; + MCHBAR32(0x400*ch + 0x278) = 0x88141881; + MCHBAR16(0x400*ch + 0x27c) = 0x41; + MCHBAR8(0x400*ch + 0x292) = 0xf2; + MCHBAR8(0x400*ch + 0x271) = (MCHBAR8(0x400*ch + 0x271) & ~0xe) | 0xe; + } + MCHBAR8(0x2c4) = MCHBAR8(0x2c4) | 0x8; + MCHBAR8(0x2c3) = MCHBAR8(0x2c3) | 0x40; + MCHBAR8(0x2c4) = MCHBAR8(0x2c4) | 0x4; + + printk(BIOS_DEBUG, "Done post-jedec\n"); + + // Set DDR init complete + FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { + MCHBAR32(0x400*ch + 0x268) = (MCHBAR32(0x400*ch + 0x268) & ~0xc0000000) | 0xc0000000; + } + + // Receive enable + sdram_program_receive_enable(s, fast_boot); + printk(BIOS_DEBUG, "Done rcven\n"); + + // Finish rcven + FOR_EACH_CHANNEL(ch) { + MCHBAR8(0x400*ch + 0x5d8) = MCHBAR8(0x400*ch + 0x5d8) & ~0xe; + MCHBAR8(0x400*ch + 0x5d8) = MCHBAR8(0x400*ch + 0x5d8) | 0x2; + MCHBAR8(0x400*ch + 0x5d8) = MCHBAR8(0x400*ch + 0x5d8) | 0x4; + MCHBAR8(0x400*ch + 0x5d8) = MCHBAR8(0x400*ch + 0x5d8) | 0x8; + } + MCHBAR8(0x5dc) = MCHBAR8(0x5dc) | 0x80; + MCHBAR8(0x5dc) = MCHBAR8(0x5dc) & ~0x80; + MCHBAR8(0x5dc) = MCHBAR8(0x5dc) | 0x80; + + // Dummy writes / reads + if (s->boot_path == BOOT_PATH_NORMAL) { + volatile u32 data; + FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { + for (bank = 0; bank < 4; bank++) { + reg32 = test_address(ch, r) | + (bank << 12); + write32((u32 *)reg32, 0xffffffff); + data = read32((u32 *)reg32); + printk(BIOS_DEBUG, "Wrote ones,"); + printk(BIOS_DEBUG, " Read: [0x%08x]=0x%08x\n", + reg32, data); + write32((u32 *)reg32, 0x00000000); + data = read32((u32 *)reg32); + printk(BIOS_DEBUG, "Wrote zeros,"); + printk(BIOS_DEBUG, " Read: [0x%08x]=0x%08x\n", + reg32, data); + } + } + } + printk(BIOS_DEBUG, "Done dummy reads\n"); + + // XXX tRD + + if (!fast_boot) { + if (s->selected_timings.mem_clk > MEM_CLOCK_667MHz) { + if(do_write_training(s)) + die("DQ write training failed!"); + } + if (do_read_training(s)) + die("DQS read training failed!"); + } + + // DRADRB + set_dradrb(s); + printk(BIOS_DEBUG, "Done DRADRB\n"); + + // Memory map + configure_mmap(s); + printk(BIOS_DEBUG, "Done memory map\n"); + + // Enhanced mode + set_enhanced_mode(s); + printk(BIOS_DEBUG, "Done enhanced mode\n"); + + // Periodic RCOMP + MCHBAR16(0x160) = (MCHBAR16(0x160) & ~0xfff) | 0x999; + MCHBAR16(0x1b4) = MCHBAR16(0x1b4) | 0x3000; + MCHBAR8(0x130) = MCHBAR8(0x130) | 0x82; + printk(BIOS_DEBUG, "Done PRCOMP\n"); + + // Power settings + power_settings(s); + printk(BIOS_DEBUG, "Done power settings\n"); + + // ME related + /* + * FIXME: This locks some registers like bit1 of GGC + * and is only needed in case of ME being used. + */ + if (ME_UMA_SIZEMB != 0) { + if (RANK_IS_POPULATED(s->dimms, 0, 0) + || RANK_IS_POPULATED(s->dimms, 1, 0)) + MCHBAR8(0xa2f) = MCHBAR8(0xa2f) | (1 << 0); + if (RANK_IS_POPULATED(s->dimms, 0, 1) + || RANK_IS_POPULATED(s->dimms, 1, 1)) + MCHBAR8(0xa2f) = MCHBAR8(0xa2f) | (1 << 1); + MCHBAR32(0xa30) = MCHBAR32(0xa30) | (1 << 26); + } + + printk(BIOS_DEBUG, "Done raminit\n"); +} |