| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <assert.h> |
| #include <stdint.h> |
| #include <device/mmio.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <commonlib/helpers.h> |
| #include <delay.h> |
| #if CONFIG(SOUTHBRIDGE_INTEL_I82801GX) |
| #include <southbridge/intel/i82801gx/i82801gx.h> |
| #else |
| #include <southbridge/intel/i82801jx/i82801jx.h> |
| #endif |
| #include <string.h> |
| #include "raminit.h" |
| #include "x4x.h" |
| |
| #define ME_UMA_SIZEMB 0 |
| |
| u32 fsb_to_mhz(u32 speed) |
| { |
| return (speed * 267) + 800; |
| } |
| |
| u32 ddr_to_mhz(u32 speed) |
| { |
| static const u16 mhz[] = { 0, 0, 667, 800, 1067, 1333 }; |
| |
| if (speed <= 1 || speed >= ARRAY_SIZE(mhz)) |
| die("RAM init: invalid memory speed %u\n", speed); |
| |
| return mhz[speed]; |
| } |
| |
| static void program_crossclock(struct sysinfo *s) |
| { |
| u8 i, j; |
| u32 reg32; |
| mchbar_setbits16(0xc1c, 1 << 15); |
| |
| static const u32 clkxtab[6][3][13] = { |
| /* MEMCLK 400 N/A */ |
| {{}, {}, {} }, |
| /* MEMCLK 533 N/A */ |
| {{}, {}, {} }, |
| /* MEMCLK 667 |
| * FSB 800 */ |
| {{0x1f1f1f1f, 0x0d07070b, 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, 0x00020100, 0x00000000, |
| 0x04080100}, |
| /* 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; |
| |
| mchbar_write32(0xc04, clkxtab[i][j][0]); |
| reg32 = clkxtab[i][j][1]; |
| if (s->spd_type == DDR3 && s->max_fsb == FSB_CLOCK_1333MHz |
| && s->selected_timings.mem_clk == MEM_CLOCK_800MHz) { |
| reg32 &= ~(0xff << 24); |
| reg32 |= 0x3d << 24; |
| } |
| mchbar_write32(0xc50, reg32); |
| mchbar_write32(0xc54, clkxtab[i][j][2]); |
| mchbar_setbits8(0xc08, 1 << 7); |
| mchbar_write32(0x6d8, clkxtab[i][j][3]); |
| mchbar_write32(0x6e0, clkxtab[i][j][3]); |
| mchbar_write32(0x6dc, clkxtab[i][j][4]); |
| mchbar_write32(0x6e4, clkxtab[i][j][4]); |
| mchbar_write32(0x6e8, clkxtab[i][j][5]); |
| mchbar_write32(0x6f0, clkxtab[i][j][5]); |
| mchbar_write32(0x6ec, clkxtab[i][j][6]); |
| mchbar_write32(0x6f4, clkxtab[i][j][6]); |
| mchbar_write32(0x6f8, clkxtab[i][j][7]); |
| mchbar_write32(0x6fc, clkxtab[i][j][8]); |
| mchbar_write32(0x708, clkxtab[i][j][11]); |
| mchbar_write32(0x70c, clkxtab[i][j][12]); |
| } |
| |
| static void setioclk_dram(struct sysinfo *s) |
| { |
| mchbar_write32(0x1bc, 0x08060402); |
| mchbar_setbits16(0x1c0, 1 << 9); |
| mchbar_setbits16(0x1c0, 1 << 8); |
| mchbar_setbits16(0x1c0, 1 << 5); |
| mchbar_clrbits16(0x1c0, 1 << 0); |
| switch (s->selected_timings.mem_clk) { |
| default: |
| case MEM_CLOCK_800MHz: |
| case MEM_CLOCK_1066MHz: |
| mchbar_setbits8(0x5d9, 1 << 1); |
| mchbar_setbits8(0x9d9, 1 << 1); |
| mchbar_clrsetbits8(0x189, 0xf0, 0xc0); |
| mchbar_clrsetbits8(0x189, 0xf0, 0xe0); |
| mchbar_clrsetbits8(0x189, 0xf0, 0xa0); |
| break; |
| case MEM_CLOCK_667MHz: |
| case MEM_CLOCK_1333MHz: |
| mchbar_clrbits8(0x5d9, 1 << 1); |
| mchbar_clrbits8(0x9d9, 1 << 1); |
| mchbar_clrsetbits8(0x189, 0xf0, 0x40); |
| break; |
| } |
| mchbar_setbits32(0x594, 1 << 31); |
| mchbar_setbits32(0x994, 1 << 31); |
| } |
| |
| static void launch_dram(struct sysinfo *s) |
| { |
| u8 i; |
| u32 launch1; |
| u32 launch2 = 0; |
| |
| static const u32 ddr3_launch1_tab[2][3] = { |
| /* 1N */ |
| {0x58000007, /* DDR3 800 */ |
| 0x58000007, /* DDR3 1067 */ |
| 0x58100107}, /* DDR3 1333 */ |
| /* 2N */ |
| {0x58001117, /* DDR3 800 */ |
| 0x58001117, /* DDR3 1067 */ |
| 0x58001117} /* DDR3 1333 */ |
| }; |
| |
| static const u32 ddr3_launch2_tab[2][3][6] = { |
| { /* 1N */ |
| /* DDR3 800 */ |
| {0x08030000, /* CL = 5 */ |
| 0x0C040100}, /* CL = 6 */ |
| /* DDR3 1066 */ |
| {0x00000000, /* CL = 5 */ |
| 0x00000000, /* CL = 6 */ |
| 0x10050100, /* CL = 7 */ |
| 0x14260200}, /* CL = 8 */ |
| /* DDR3 1333 */ |
| {0x00000000, /* CL = 5 */ |
| 0x00000000, /* CL = 6 */ |
| 0x00000000, /* CL = 7 */ |
| 0x14060000, /* CL = 8 */ |
| 0x18070100, /* CL = 9 */ |
| 0x1C280200}, /* CL = 10 */ |
| |
| }, |
| { /* 2N */ |
| /* DDR3 800 */ |
| {0x00040101, /* CL = 5 */ |
| 0x00250201}, /* CL = 6 */ |
| /* DDR3 1066 */ |
| {0x00000000, /* CL = 5 */ |
| 0x00050101, /* CL = 6 */ |
| 0x04260201, /* CL = 7 */ |
| 0x08470301}, /* CL = 8 */ |
| /* DDR3 1333 */ |
| {0x00000000, /* CL = 5 */ |
| 0x00000000, /* CL = 6 */ |
| 0x00000000, /* CL = 7 */ |
| 0x08070100, /* CL = 8 */ |
| 0x0C280200, /* CL = 9 */ |
| 0x10490300} /* CL = 10 */ |
| } |
| }; |
| |
| if (s->spd_type == DDR2) { |
| launch1 = 0x58001117; |
| if (s->selected_timings.CAS == 5) |
| launch2 = 0x00220201; |
| else if (s->selected_timings.CAS == 6) |
| launch2 = 0x00230302; |
| else |
| die("Unsupported CAS\n"); |
| } else { /* DDR3 */ |
| /* Default 2N mode */ |
| s->nmode = 2; |
| |
| if (s->selected_timings.mem_clk <= MEM_CLOCK_1066MHz) |
| s->nmode = 1; |
| /* 2N on DDR3 1066 with 2 dimms per channel */ |
| if ((s->selected_timings.mem_clk == MEM_CLOCK_1066MHz) && |
| (BOTH_DIMMS_ARE_POPULATED(s->dimms, 0) || |
| BOTH_DIMMS_ARE_POPULATED(s->dimms, 1))) |
| s->nmode = 2; |
| launch1 = ddr3_launch1_tab[s->nmode - 1] |
| [s->selected_timings.mem_clk - MEM_CLOCK_800MHz]; |
| launch2 = ddr3_launch2_tab[s->nmode - 1] |
| [s->selected_timings.mem_clk - MEM_CLOCK_800MHz] |
| [s->selected_timings.CAS - 5]; |
| } |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { |
| mchbar_write32(0x400 * i + 0x220, launch1); |
| mchbar_write32(0x400 * i + 0x224, launch2); |
| mchbar_write32(0x400 * i + 0x21c, 0); |
| mchbar_setbits32(0x400 * i + 0x248, 1 << 23); |
| } |
| |
| mchbar_clrsetbits32(0x2c0, 0x58 << 24, 0x48 << 24); |
| mchbar_setbits32(0x2c0, 0xf << 5); |
| mchbar_clrsetbits32(0x2c4, 0xf, 0xc); |
| if (s->spd_type == DDR3) |
| mchbar_setbits32(0x2c4, 1 << 8); |
| } |
| |
| static void write_txdll_tap_pi(u8 ch, u16 reg, u8 tap, u8 pi) |
| { |
| mchbar_clrsetbits8(0x400 * ch + reg, 0x7f, pi << 4 | tap); |
| } |
| |
| static void clkset0(u8 ch, const struct dll_setting *setting) |
| { |
| mchbar_clrsetbits16(0x400 * ch + 0x5a0, 0xc440, |
| (setting->clk_delay << 14) | |
| (setting->db_sel << 6) | |
| (setting->db_en << 10)); |
| write_txdll_tap_pi(ch, 0x581, setting->tap, setting->pi); |
| } |
| |
| static void clkset1(u8 ch, const struct dll_setting *setting) |
| { |
| mchbar_clrsetbits32(0x400 * ch + 0x5a0, 0x30880, |
| (setting->clk_delay << 16) | |
| (setting->db_sel << 7) | |
| (setting->db_en << 11)); |
| write_txdll_tap_pi(ch, 0x582, setting->tap, setting->pi); |
| } |
| |
| static void ctrlset0(u8 ch, const struct dll_setting *setting) |
| { |
| mchbar_clrsetbits32(0x400 * ch + 0x59c, 0x3300000, |
| (setting->clk_delay << 24) | |
| (setting->db_sel << 20) | |
| (setting->db_en << 21)); |
| write_txdll_tap_pi(ch, 0x584, setting->tap, setting->pi); |
| } |
| |
| static void ctrlset1(u8 ch, const struct dll_setting *setting) |
| { |
| mchbar_clrsetbits32(0x400 * ch + 0x59c, 0x18c00000, |
| (setting->clk_delay << 27) | |
| (setting->db_sel << 22) | |
| (setting->db_en << 23)); |
| write_txdll_tap_pi(ch, 0x585, setting->tap, setting->pi); |
| } |
| |
| static void ctrlset2(u8 ch, const struct dll_setting *setting) |
| { |
| /* |
| * MRC uses an incorrect mask when programming this register, but |
| * the reset default value is zero and it is only programmed once. |
| * As it makes no difference, we can safely use the correct mask. |
| */ |
| mchbar_clrsetbits32(0x400 * ch + 0x598, 0xf000, |
| (setting->clk_delay << 14) | |
| (setting->db_sel << 12) | |
| (setting->db_en << 13)); |
| write_txdll_tap_pi(ch, 0x586, setting->tap, setting->pi); |
| } |
| |
| static void ctrlset3(u8 ch, const struct dll_setting *setting) |
| { |
| /* |
| * MRC uses an incorrect mask when programming this register, but |
| * the reset default value is zero and it is only programmed once. |
| * As it makes no difference, we can safely use the correct mask. |
| */ |
| mchbar_clrsetbits32(0x400 * ch + 0x598, 0xf00, |
| (setting->clk_delay << 10) | |
| (setting->db_sel << 8) | |
| (setting->db_en << 9)); |
| write_txdll_tap_pi(ch, 0x587, setting->tap, setting->pi); |
| } |
| |
| static void cmdset(u8 ch, const struct dll_setting *setting) |
| { |
| mchbar_clrsetbits8(0x400 * ch + 0x598, 0x30, setting->clk_delay << 4); |
| mchbar_clrsetbits8(0x400 * ch + 0x594, 0x60, |
| (setting->db_sel << 5) | |
| (setting->db_en << 6)); |
| write_txdll_tap_pi(ch, 0x580, setting->tap, setting->pi); |
| } |
| |
| /** |
| * 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; |
| |
| mchbar_clrsetbits32(0x400 * ch + 0x5fc, 1 << (lane * 4 + 1), |
| setting->coarse << (lane * 4 + 1)); |
| |
| for (rank = 0; rank < 4; rank++) { |
| mchbar_clrsetbits32(0x400 * ch + 0x5b4 + rank * 4, 0x201 << lane, |
| (setting->db_en << (9 + lane)) | |
| (setting->db_sel << lane)); |
| |
| mchbar_clrsetbits32(0x400 * ch + 0x5c8 + rank * 4, 0x3 << (16 + lane * 2), |
| setting->clk_delay << (16 + lane * 2)); |
| |
| write_txdll_tap_pi(ch, 0x520 + lane * 4 + rank, setting->tap, setting->pi); |
| } |
| } |
| |
| void dqset(u8 ch, u8 lane, const struct dll_setting *setting) |
| { |
| int rank; |
| mchbar_clrsetbits32(0x400 * ch + 0x5fc, 1 << (lane * 4), |
| setting->coarse << (lane * 4)); |
| |
| for (rank = 0; rank < 4; rank++) { |
| mchbar_clrsetbits32(0x400 * ch + 0x5a4 + rank * 4, 0x201 << lane, |
| (setting->db_en << (9 + lane)) | |
| (setting->db_sel << lane)); |
| |
| mchbar_clrsetbits32(0x400 * ch + 0x5c8 + rank * 4, 0x3 << (lane * 2), |
| setting->clk_delay << (2 * lane)); |
| |
| write_txdll_tap_pi(ch, 0x500 + lane * 4 + rank, setting->tap, setting->pi); |
| } |
| } |
| |
| void rt_set_dqs(u8 channel, u8 lane, u8 rank, struct rt_dqs_setting *dqs_setting) |
| { |
| u16 saved_tap = mchbar_read16(0x540 + 0x400 * channel + lane * 4); |
| u16 saved_pi = mchbar_read16(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); |
| mchbar_write16(0x540 + 0x400 * channel + lane * 4, saved_tap); |
| |
| saved_pi &= ~(0x7 << (rank * 3)); |
| saved_pi |= dqs_setting->pi << (rank * 3); |
| mchbar_write16(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 fsb_to_ps[3] = { |
| 5000, /* 800 */ |
| 3750, /* 1067 */ |
| 3000 /* 1333 */ |
| }; |
| |
| u16 ddr_to_ps[6] = { |
| 5000, /* 400 */ |
| 3750, /* 533 */ |
| 3000, /* 667 */ |
| 2500, /* 800 */ |
| 1875, /* 1067 */ |
| 1500 /* 1333 */ |
| }; |
| |
| u16 lut1[6] = { |
| 0, |
| 0, |
| 2600, |
| 3120, |
| 4171, |
| 5200 |
| }; |
| |
| static const u8 ddr3_turnaround_tab[3][6][4] = { |
| { /* DDR3 800 */ |
| {0x9, 0x7, 0x9, 0x7}, /* CL = 5 */ |
| {0x9, 0x7, 0x8, 0x8}, /* CL = 6 */ |
| }, |
| { /* DDR3 1066 */ |
| {0x0, 0x0, 0x0, 0x0}, /* CL = 5 - Not supported */ |
| {0x9, 0x7, 0x9, 0x7}, /* CL = 6 */ |
| {0x9, 0x7, 0x8, 0x8}, /* CL = 7 */ |
| {0x9, 0x7, 0x7, 0x9} /* CL = 8 */ |
| }, |
| { /* DDR3 1333 */ |
| {0x0, 0x0, 0x0, 0x0}, /* CL = 5 - Not supported */ |
| {0x0, 0x0, 0x0, 0x0}, /* CL = 6 - Not supported */ |
| {0x0, 0x0, 0x0, 0x0}, /* CL = 7 - Not supported */ |
| {0x9, 0x7, 0x8, 0x9}, /* CL = 8 */ |
| {0x9, 0x7, 0x7, 0xa}, /* CL = 9 */ |
| {0x9, 0x7, 0x6, 0xb}, /* CL = 10 */ |
| } |
| }; |
| |
| /* [DDR freq][0x26F & 1][pagemod] */ |
| static const u8 ddr2_x252_tab[2][2][2] = { |
| { /* DDR2 667 */ |
| {12, 16}, |
| {14, 18} |
| }, |
| { /* DDR2 800 */ |
| {14, 18}, |
| {16, 20} |
| } |
| }; |
| |
| static const u8 ddr3_x252_tab[3][2][2] = { |
| { /* DDR3 800 */ |
| {16, 20}, |
| {18, 22} |
| }, |
| { /* DDR3 1067 */ |
| {20, 26}, |
| {26, 26} |
| }, |
| { /* DDR3 1333 */ |
| {20, 30}, |
| {22, 32}, |
| } |
| }; |
| |
| if (s->spd_type == DDR2) { |
| ta1 = 6; |
| ta2 = 6; |
| ta3 = 5; |
| ta4 = 8; |
| } else { |
| int ddr3_idx = s->selected_timings.mem_clk - MEM_CLOCK_800MHz; |
| int cas_idx = s->selected_timings.CAS - 5; |
| ta1 = ddr3_turnaround_tab[ddr3_idx][cas_idx][0]; |
| ta2 = ddr3_turnaround_tab[ddr3_idx][cas_idx][1]; |
| ta3 = ddr3_turnaround_tab[ddr3_idx][cas_idx][2]; |
| ta4 = ddr3_turnaround_tab[ddr3_idx][cas_idx][3]; |
| } |
| |
| if (s->spd_type == DDR2) |
| twl = s->selected_timings.CAS - 1; |
| else /* DDR3 */ |
| twl = s->selected_timings.mem_clk - MEM_CLOCK_800MHz + 5; |
| |
| 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) { |
| mchbar_setbits8(0x400 * i + 0x26f, 0x3); |
| mchbar_clrsetbits8(0x400 * i + 0x228, 0x7, 0x2); |
| /* tWL - x ?? */ |
| mchbar_clrsetbits8(0x400 * i + 0x240, 0xf << 4, 0 << 4); |
| mchbar_clrsetbits8(0x400 * i + 0x240, 0xf, adjusted_cas); |
| mchbar_clrsetbits16(0x400 * i + 0x265, 0x3f << 8, (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; |
| mchbar_write16(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; |
| if (bankmod == 0) { |
| reg8 = mchbar_read8(0x400 * i + 0x26f) >> 1 & 1; |
| if (s->spd_type == DDR2) |
| reg32 |= ddr2_x252_tab[s->selected_timings.mem_clk |
| - MEM_CLOCK_667MHz][reg8][pagemod] << 22; |
| else |
| reg32 |= ddr3_x252_tab[s->selected_timings.mem_clk |
| - MEM_CLOCK_800MHz][reg8][pagemod] << 22; |
| } |
| mchbar_write32(0x400 * i + 0x252, reg32); |
| |
| mchbar_write16(0x400 * i + 0x256, s->selected_timings.tRCD << 12 | 4 << 8 | |
| ta2 << 4 | ta4); |
| |
| mchbar_write32(0x400 * i + 0x258, s->selected_timings.tRCD << 17 | |
| (twl + 4 + s->selected_timings.tWTR) << 12 | |
| ta3 << 8 | 4 << 4 | ta1); |
| |
| mchbar_write16(0x400 * i + 0x25b, (s->selected_timings.tRP + trpmod) << 9 | |
| s->selected_timings.tRFC); |
| |
| mchbar_clrsetbits16(0x400 * i + 0x260, 0x1ff << 1, |
| (s->spd_type == DDR2 ? 100 : 256) << 1); |
| mchbar_write8(0x400 * i + 0x264, 0xff); |
| mchbar_clrsetbits8(0x400 * i + 0x25d, 0x3f, s->selected_timings.tRAS); |
| mchbar_write16(0x400 * i + 0x244, 0x2310); |
| |
| switch (s->selected_timings.mem_clk) { |
| case MEM_CLOCK_667MHz: |
| reg8 = 0; |
| break; |
| default: |
| reg8 = 1; |
| break; |
| } |
| |
| mchbar_clrsetbits8(0x400 * i + 0x246, 0x1f, (reg8 << 2) | 1); |
| |
| fsb = fsb_to_ps[s->selected_timings.fsb_clk]; |
| ddr = ddr_to_ps[s->selected_timings.mem_clk]; |
| reg32 = (u32)((s->selected_timings.CAS + 7 + reg8) * ddr); |
| reg32 = (u32)((reg32 / fsb) << 8); |
| reg32 |= 0x0e000000; |
| if ((fsb_to_mhz(s->selected_timings.fsb_clk) / |
| ddr_to_mhz(s->selected_timings.mem_clk)) > 2) { |
| reg32 |= 1 << 24; |
| } |
| mchbar_clrsetbits32(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; |
| mchbar_clrsetbits16(0x400 * i + 0x24d, 0x1ff, reg16); |
| mchbar_write16(0x400 * i + 0x25e, 0x15a5); |
| mchbar_clrbits32(0x400 * i + 0x265, 0x1f); |
| mchbar_clrsetbits32(0x400 * i + 0x269, 0x000fffff, |
| (0x3f << 14) | lut1[s->selected_timings.mem_clk]); |
| mchbar_setbits8(0x400 * i + 0x274, 1); |
| mchbar_clrbits8(0x400 * i + 0x24c, 3); |
| |
| reg16 = 0; |
| if (s->spd_type == DDR2) { |
| 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; |
| } |
| } else { /* DDR3 */ |
| switch (s->selected_timings.mem_clk) { |
| default: |
| case MEM_CLOCK_800MHz: |
| case MEM_CLOCK_1066MHz: |
| reg16 = 1; |
| break; |
| case MEM_CLOCK_1333MHz: |
| reg16 = 2; |
| break; |
| } |
| } |
| |
| reg16 &= 0x7; |
| reg16 += twl + 9; |
| reg16 <<= 10; |
| mchbar_clrsetbits16(0x400 * i + 0x24d, 0x1f << 10, reg16); |
| mchbar_clrsetbits8(0x400 * i + 0x267, 0x3f, 0x13); |
| mchbar_clrsetbits8(0x400 * i + 0x268, 0xff, 0x4a); |
| |
| reg16 = (mchbar_read16(0x400 * i + 0x269) & 0xc000) >> 2; |
| reg16 += 2 << 12; |
| reg16 |= (0x15 << 6) | 0x1f; |
| mchbar_clrsetbits16(0x400 * i + 0x26d, 0x7fff, reg16); |
| |
| reg32 = (1 << 25) | (6 << 27); |
| mchbar_clrsetbits32(0x400 * i + 0x269, 0xfa300000, reg32); |
| mchbar_clrbits8(0x400 * i + 0x271, 1 << 7); |
| mchbar_clrbits8(0x400 * i + 0x274, 3 << 1); |
| } /* END EACH POPULATED CHANNEL */ |
| |
| reg16 = 0x1f << 5; |
| reg16 |= 0xe << 10; |
| mchbar_clrsetbits16(0x125, 0x1ff << 5, reg16); |
| mchbar_clrsetbits16(0x127, 0x7ff, 0x540); |
| mchbar_setbits8(0x129, 0x1f); |
| mchbar_setbits8(0x12c, 0xa0); |
| mchbar_clrsetbits32(0x241, 0x1ffff, 0x11); |
| mchbar_clrsetbits32(0x641, 0x1ffff, 0x11); |
| mchbar_clrbits8(0x246, 1 << 4); |
| mchbar_clrbits8(0x646, 1 << 4); |
| mchbar_write32(0x120, 2 << 29 | 1 << 28 | 1 << 23 | 0xd7f5f); |
| reg8 = (u8)(mchbar_read32(0x252) >> 13 & 0xf); |
| mchbar_clrsetbits8(0x12d, 0xf << 4, reg8 << 4); |
| reg8 = (u8)(mchbar_read32(0x258) >> 17 & 0xf); |
| mchbar_clrsetbits8(0x12d, 0xf << 0, reg8 << 0); |
| mchbar_write8(0x12f, 0x4c); |
| reg32 = (1 << 31) | (0x80 << 14) | (1 << 13) | (0xa << 9); |
| if (s->spd_type == DDR3) { |
| mchbar_write8(0x114, 0x42); |
| reg16 = (512 - MAX(5, s->selected_timings.tRFC + 10000 |
| / ddr_to_ps[s->selected_timings.mem_clk])) |
| / 2; |
| reg16 &= 0x1ff; |
| reg32 = (reg16 << 22) | (0x80 << 14) | (0xa << 9); |
| } |
| mchbar_clrsetbits32(0x6c0, 0xffffff00, reg32); |
| mchbar_clrsetbits8(0x6c4, 0x7, 0x2); |
| } |
| |
| const unsigned int sync_dll_max_taps = 16; |
| |
| static void sync_dll_load_tap(unsigned int tap) |
| { |
| mchbar_clrsetbits8(0x1c8, 0x1f, tap & 0x1f); |
| mchbar_setbits8(0x180, 1 << 4); |
| do {} while (mchbar_read8(0x180) & (1 << 4)); |
| } |
| |
| static bool sync_dll_test_tap(unsigned int tap, uint32_t val) |
| { |
| if (tap >= sync_dll_max_taps) |
| return false; |
| sync_dll_load_tap(tap); |
| return mchbar_read32(0x184) == val; |
| } |
| |
| static void sync_dll_search_tap(unsigned int *tap, uint32_t val) |
| { |
| for (; *tap < sync_dll_max_taps; ++*tap) |
| if (sync_dll_test_tap(*tap, val)) |
| return; |
| } |
| |
| static void program_dll(struct sysinfo *s) |
| { |
| u8 i, r, reg8, clk, async = 0; |
| u16 reg16 = 0; |
| u32 reg32 = 0; |
| |
| const u8 rank2clken[8] = { 0x04, 0x01, 0x20, 0x08, 0x01, 0x04, 0x08, 0x10 }; |
| |
| mchbar_clrsetbits16(0x180, 0x7e06, 0xc04); |
| mchbar_clrsetbits16(0x182, 0x3ff, 0xc8); |
| mchbar_clrsetbits16(0x18a, 0x1f1f, 0x0f0f); |
| mchbar_clrsetbits16(0x1b4, 0x8020, 0x100); |
| mchbar_clrsetbits8(0x194, 0x77, 0x33); |
| switch (s->selected_timings.mem_clk) { |
| default: |
| case MEM_CLOCK_667MHz: |
| case MEM_CLOCK_1333MHz: |
| reg16 = (0xa << 9) | 0xa; |
| break; |
| case MEM_CLOCK_800MHz: |
| reg16 = (0x9 << 9) | 0x9; |
| break; |
| case MEM_CLOCK_1066MHz: |
| reg16 = (0x7 << 9) | 0x7; |
| break; |
| } |
| mchbar_clrsetbits16(0x19c, 0xf << 9 | 0xf, reg16); |
| mchbar_clrsetbits16(0x19c, 0x2030, 0x2010); |
| udelay(1); |
| mchbar_clrbits16(0x198, 1 << 8); |
| |
| mchbar_clrsetbits16(0x1c8, 0x1f, 0xd); |
| |
| udelay(1); |
| mchbar_clrbits8(0x190, 1); |
| udelay(1); /* 533ns */ |
| mchbar_clrbits32(0x198, 0x11554000); |
| udelay(1); |
| mchbar_clrbits32(0x198, 0x1455); |
| udelay(1); |
| mchbar_clrbits8(0x583, 0x1c); |
| mchbar_clrbits8(0x983, 0x1c); |
| udelay(1); /* 533ns */ |
| mchbar_clrbits8(0x583, 0x3); |
| mchbar_clrbits8(0x983, 0x3); |
| udelay(1); /* 533ns */ |
| |
| /* ME related */ |
| mchbar_clrsetbits32(0x1a0, 0x7ffffff, s->spd_type == DDR2 ? 0x551803 : 0x555801); |
| |
| mchbar_clrbits16(0x1b4, 0x800); |
| if (s->spd_type == DDR2) { |
| mchbar_setbits8(0x1a8, 0xf0); |
| } else { /* DDR3 */ |
| reg8 = 0x9; /* 0x9 << 4 ?? */ |
| if (s->dimms[0].ranks == 2) |
| reg8 &= ~0x80; |
| if (s->dimms[3].ranks == 2) |
| reg8 &= ~0x10; |
| mchbar_clrsetbits8(0x1a8, 0xf0, reg8); |
| } |
| |
| FOR_EACH_CHANNEL(i) { |
| reg16 = 0; |
| if ((s->spd_type == DDR3) && (i == 0)) |
| reg16 = (0x3 << 12); |
| mchbar_clrsetbits16(0x400 * i + 0x59c, 0x3 << 12, reg16); |
| |
| reg32 = 0; |
| FOR_EACH_RANK_IN_CHANNEL(r) { |
| if (!RANK_IS_POPULATED(s->dimms, i, r)) |
| reg32 |= 0x111 << r; |
| } |
| |
| mchbar_clrsetbits32(0x400 * i + 0x59c, 0xfff, reg32); |
| mchbar_clrbits8(0x400 * i + 0x594, 1); |
| |
| if (s->spd_type == DDR2) { |
| 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"); |
| } |
| mchbar_clrsetbits32(0x400 * i + 0x5a0, 0x3f000000, reg8 << 24); |
| |
| } else { /* DDR3 */ |
| FOR_EACH_POPULATED_RANK_IN_CHANNEL(s->dimms, i, r) { |
| mchbar_clrbits8(0x400 * i + 0x5a0 + 3, rank2clken[r + i * 4]); |
| } |
| } |
| } /* END EACH CHANNEL */ |
| |
| if (s->spd_type == DDR2) { |
| mchbar_setbits8(0x1a8, 1 << 0); |
| mchbar_clrbits8(0x1a8, 1 << 2); |
| } else { /* DDR3 */ |
| mchbar_clrbits8(0x1a8, 1 << 0); |
| mchbar_setbits8(0x1a8, 1 << 2); |
| } |
| |
| /* Update DLL timing */ |
| mchbar_clrbits8(0x1a4, 1 << 7); |
| mchbar_setbits8(0x1a4, 1 << 6); |
| mchbar_setbits16(0x5f0, 1 << 10); |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { |
| mchbar_setbits16(0x400 * i + 0x5f0, 0x3fc); |
| mchbar_clrbits32(0x400 * i + 0x5fc, 0xcccccccc); |
| mchbar_clrsetbits8(0x400 * i + 0x5d9, 0xf0, s->spd_type == DDR2 ? 0x70 : 0x60); |
| mchbar_clrsetbits16(0x400 * i + 0x590, ~0, |
| s->spd_type == DDR2 ? 0x5555 : 0xa955); |
| } |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { |
| const struct dll_setting *setting; |
| |
| switch (s->selected_timings.mem_clk) { |
| default: /* Should not happen */ |
| case MEM_CLOCK_667MHz: |
| setting = default_ddr2_667_ctrl; |
| break; |
| case MEM_CLOCK_800MHz: |
| if (s->spd_type == DDR2) |
| setting = default_ddr2_800_ctrl; |
| else |
| setting = default_ddr3_800_ctrl[s->nmode - 1]; |
| break; |
| case MEM_CLOCK_1066MHz: |
| setting = default_ddr3_1067_ctrl[s->nmode - 1]; |
| break; |
| case MEM_CLOCK_1333MHz: |
| setting = default_ddr3_1333_ctrl[s->nmode - 1]; |
| break; |
| } |
| |
| 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 */ |
| unsigned int tap; |
| mchbar_clrbits16(0x180, 1 << 15 | 1 << 9); |
| mchbar_setbits8(0x180, 1 << 2); |
| for (tap = 0; tap < sync_dll_max_taps; ++tap) { |
| sync_dll_search_tap(&tap, 0xffffffff); |
| |
| if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) |
| break; |
| |
| ++tap; /* other clock speeds need a second match */ |
| if (sync_dll_test_tap(tap, 0xffffffff)) |
| break; |
| } |
| |
| /* look for a real edge if we started with a match */ |
| if (tap <= 1) { |
| unsigned int tap2 = tap + 1; |
| sync_dll_search_tap(&tap2, 0); |
| |
| for (++tap2; tap2 < sync_dll_max_taps; ++tap2) { |
| sync_dll_search_tap(&tap2, 0xffffffff); |
| |
| ++tap2; /* we need a second match */ |
| if (sync_dll_test_tap(tap2, 0xffffffff)) |
| break; |
| } |
| |
| if (tap2 < sync_dll_max_taps) { |
| tap = tap2; |
| } else { |
| /* Using 0 instead of the original `tap` seems |
| inconsistent, but is what the code always did. */ |
| sync_dll_load_tap(0); |
| tap = 0; |
| } |
| } |
| |
| if (tap >= sync_dll_max_taps) { |
| mchbar_clrsetbits8(0x1c8, 0x1f, 0); |
| tap = 0; |
| async = 1; |
| printk(BIOS_NOTICE, "HMC failed, using async mode\n"); |
| } |
| |
| mchbar_clrbits8(0x180, 1 << 7); |
| |
| if (s->spd_type == DDR3 && s->selected_timings.mem_clk == MEM_CLOCK_1066MHz) |
| sync_dll_load_tap((tap + 3) % 12); |
| |
| if (s->spd_type == DDR2 && |
| s->selected_timings.fsb_clk == FSB_CLOCK_800MHz && |
| s->selected_timings.mem_clk == MEM_CLOCK_667MHz) |
| sync_dll_load_tap((tap + 10) % 14); |
| |
| switch (s->selected_timings.mem_clk) { |
| case MEM_CLOCK_667MHz: |
| clk = 0x1a; |
| if (async != 1) { |
| if (s->selected_timings.fsb_clk == FSB_CLOCK_800MHz) |
| clk = 0x10; |
| } |
| break; |
| case MEM_CLOCK_800MHz: |
| case MEM_CLOCK_1066MHz: |
| if (async != 1) |
| clk = 0x10; |
| else |
| clk = 0x1a; |
| break; |
| case MEM_CLOCK_1333MHz: |
| clk = 0x18; |
| break; |
| default: |
| clk = 0x1a; |
| break; |
| } |
| |
| reg8 = mchbar_read8(0x188) & ~1; |
| mchbar_write8(0x188, reg8); |
| reg8 &= ~0x3e; |
| reg8 |= clk; |
| mchbar_write8(0x188, reg8); |
| reg8 |= 1; |
| mchbar_write8(0x188, reg8); |
| |
| if (s->selected_timings.mem_clk == MEM_CLOCK_1333MHz) |
| mchbar_setbits8(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 */ |
| memcpy(s->dqs_settings[ch], |
| default_ddr3_800_dqs[s->nmode - 1], |
| sizeof(s->dqs_settings[ch])); |
| memcpy(s->dq_settings[ch], |
| default_ddr3_800_dq[s->nmode - 1], |
| sizeof(s->dq_settings[ch])); |
| s->rt_dqs[ch][lane].tap = 6; |
| s->rt_dqs[ch][lane].pi = 3; |
| } |
| break; |
| case MEM_CLOCK_1066MHz: |
| memcpy(s->dqs_settings[ch], |
| default_ddr3_1067_dqs[s->nmode - 1], |
| sizeof(s->dqs_settings[ch])); |
| memcpy(s->dq_settings[ch], |
| default_ddr3_1067_dq[s->nmode - 1], |
| sizeof(s->dq_settings[ch])); |
| s->rt_dqs[ch][lane].tap = 5; |
| s->rt_dqs[ch][lane].pi = 3; |
| break; |
| case MEM_CLOCK_1333MHz: |
| memcpy(s->dqs_settings[ch], |
| default_ddr3_1333_dqs[s->nmode - 1], |
| sizeof(s->dqs_settings[ch])); |
| memcpy(s->dq_settings[ch], |
| default_ddr3_1333_dq[s->nmode - 1], |
| sizeof(s->dq_settings[ch])); |
| 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, reg8; |
| const u32 ddr2_x32a[8] = { 0x04040404, 0x06050505, 0x09090807, 0x0d0c0b0a, |
| 0x04040404, 0x08070605, 0x0c0b0a09, 0x100f0e0d }; |
| const u16 ddr2_x378[5] = { 0xaaaa, 0x7777, 0x7777, 0x7777, 0x7777 }; |
| const u32 ddr2_x382[5] = { 0x02020202, 0x02020202, 0x02020202, 0x04030303, 0x04030303 }; |
| const u32 ddr2_x386[5] = { 0x03020202, 0x03020202, 0x03020202, 0x05040404, 0x05040404 }; |
| const u32 ddr2_x38a[5] = { 0x04040303, 0x04040303, 0x04040303, 0x07070605, 0x07070605 }; |
| const u32 ddr2_x38e[5] = { 0x06060505, 0x06060505, 0x06060505, 0x09090808, 0x09090808 }; |
| const u32 ddr2_x392[5] = { 0x02020202, 0x02020202, 0x02020202, 0x03030202, 0x03030202 }; |
| const u32 ddr2_x396[5] = { 0x03030202, 0x03030202, 0x03030202, 0x05040303, 0x05040303 }; |
| const u32 ddr2_x39a[5] = { 0x04040403, 0x04040403, 0x04040403, 0x07070605, 0x07070605 }; |
| const u32 ddr2_x39e[5] = { 0x06060505, 0x06060505, 0x06060505, 0x08080808, 0x08080808 }; |
| |
| const u32 ddr3_x32a[8] = { 0x06060606, 0x06060606, 0x0b090807, 0x12110f0d, |
| 0x06060606, 0x08070606, 0x0d0b0a09, 0x16161511 }; |
| const u16 ddr3_x378[5] = { 0xbbbb, 0x6666, 0x6666, 0x6666, 0x6666 }; |
| const u32 ddr3_x382[5] = { 0x05050505, 0x04040404, 0x04040404, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x386[5] = { 0x05050505, 0x04040404, 0x04040404, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x38a[5] = { 0x06060605, 0x07060504, 0x07060504, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x38e[5] = { 0x09080707, 0x09090808, 0x09090808, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x392[5] = { 0x05050505, 0x04040404, 0x04040404, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x396[5] = { 0x05050505, 0x04040404, 0x04040404, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x39a[5] = { 0x07060606, 0x08070605, 0x08070605, 0x34343434, 0x34343434 }; |
| const u32 ddr3_x39e[5] = { 0x09090807, 0x0b0b0a09, 0x0b0b0a09, 0x34343434, 0x34343434 }; |
| |
| const u16 *x378; |
| const u32 *x32a, *x382, *x386, *x38a, *x38e; |
| const u32 *x392, *x396, *x39a, *x39e; |
| |
| const u16 addr[5] = { 0x374, 0x3a2, 0x3d0, 0x3fe, 0x42c }; |
| const u8 bit[5] = { 0, 1, 1, 0, 0 }; |
| |
| if (s->spd_type == DDR2) { |
| x32a = ddr2_x32a; |
| x378 = ddr2_x378; |
| x382 = ddr2_x382; |
| x386 = ddr2_x386; |
| x38a = ddr2_x38a; |
| x38e = ddr2_x38e; |
| x392 = ddr2_x392; |
| x396 = ddr2_x396; |
| x39a = ddr2_x39a; |
| x39e = ddr2_x39e; |
| } else { /* DDR3 */ |
| x32a = ddr3_x32a; |
| x378 = ddr3_x378; |
| x382 = ddr3_x382; |
| x386 = ddr3_x386; |
| x38a = ddr3_x38a; |
| x38e = ddr3_x38e; |
| x392 = ddr3_x392; |
| x396 = ddr3_x396; |
| x39a = ddr3_x39a; |
| x39e = ddr3_x39e; |
| } |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { |
| /* RCOMP data group is special, program it separately */ |
| mchbar_clrsetbits32(0x400 * i + 0x31c, 0xff000, 0xaa000); |
| mchbar_clrsetbits16(0x400 * i + 0x320, 0xffff, 0x6666); |
| for (k = 0; k < 8; k++) { |
| mchbar_clrsetbits32(0x400 * i + 0x32a + (k << 2), 0x3f3f3f3f, x32a[k]); |
| mchbar_clrsetbits32(0x400 * i + 0x34a + (k << 2), 0x3f3f3f3f, x32a[k]); |
| } |
| mchbar_clrsetbits8(0x400 * i + 0x31c, 1, 0); |
| |
| /* Now program the other RCOMP groups */ |
| for (j = 0; j < ARRAY_SIZE(addr); j++) { |
| mchbar_clrsetbits16(0x400 * i + addr[j] + 0, 0xf000, 0xa000); |
| mchbar_clrsetbits16(0x400 * i + addr[j] + 4, 0xffff, x378[j]); |
| |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x0e, 0x3f3f3f3f, x382[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x12, 0x3f3f3f3f, x386[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x16, 0x3f3f3f3f, x38a[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x1a, 0x3f3f3f3f, x38e[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x1e, 0x3f3f3f3f, x392[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x22, 0x3f3f3f3f, x396[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x26, 0x3f3f3f3f, x39a[j]); |
| mchbar_clrsetbits32(0x400 * i + addr[j] + 0x2a, 0x3f3f3f3f, x39e[j]); |
| |
| /* Override command group strength multiplier */ |
| if (s->spd_type == DDR3 && BOTH_DIMMS_ARE_POPULATED(s->dimms, i)) { |
| mchbar_clrsetbits16(0x378 + 0x400 * i, 0xffff, 0xcccc); |
| } |
| mchbar_clrsetbits8(0x400 * i + addr[j], 1, bit[j]); |
| } |
| reg8 = (s->spd_type == DDR2) ? 0x12 : 0x36; |
| mchbar_clrsetbits8(0x400 * i + 0x45a, 0x3f, reg8); |
| mchbar_clrsetbits8(0x400 * i + 0x45e, 0x3f, reg8); |
| mchbar_clrsetbits8(0x400 * i + 0x462, 0x3f, reg8); |
| mchbar_clrsetbits8(0x400 * i + 0x466, 0x3f, reg8); |
| } /* END EACH POPULATED CHANNEL */ |
| |
| mchbar_clrsetbits32(0x134, 0x63c00, 0x63c00); |
| mchbar_clrsetbits16(0x174, 0x63ff, 0x63ff); |
| mchbar_write16(0x178, 0x0135); |
| mchbar_clrsetbits32(0x130, 0x7bdffe0, 0x7a9ffa0); |
| |
| if (!CHANNEL_IS_POPULATED(s->dimms, 0)) |
| mchbar_clrbits32(0x130, 1 << 27); |
| if (!CHANNEL_IS_POPULATED(s->dimms, 1)) |
| mchbar_clrbits32(0x130, 1 << 28); |
| |
| mchbar_setbits8(0x130, 1); |
| } |
| |
| static void program_odt(struct sysinfo *s) |
| { |
| u8 i; |
| static const u16 ddr2_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 */ |
| }; |
| |
| static const u16 ddr3_odt[16][2] = { |
| { 0x0000, 0x0000 }, /* NC_NC */ |
| { 0x0000, 0x0001 }, /* x8SS_NC */ |
| { 0x0000, 0x0021 }, /* x8DS_NC */ |
| { 0x0000, 0x0001 }, /* x16SS_NC */ |
| { 0x0004, 0x0000 }, /* NC_x8SS */ |
| { 0x0105, 0x0405 }, /* x8SS_x8SS */ |
| { 0x0105, 0x4465 }, /* x8DS_x8SS */ |
| { 0x0105, 0x0405 }, /* x16SS_x8SS */ |
| { 0x0084, 0x0000 }, /* NC_x8DS */ |
| { 0x1195, 0x0405 }, /* x8SS_x8DS */ |
| { 0x1195, 0x4465 }, /* x8DS_x8DS */ |
| { 0x1195, 0x0405 }, /* x16SS_x8DS */ |
| { 0x0004, 0x0000 }, /* NC_x16SS */ |
| { 0x0105, 0x0405 }, /* x8SS_x16SS */ |
| { 0x0105, 0x4465 }, /* x8DS_x16SS */ |
| { 0x0105, 0x0405 }, /* x16SS_x16SS */ |
| }; |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { |
| if (s->spd_type == DDR2) { |
| mchbar_write16(0x400 * i + 0x298, ddr2_odt[s->dimm_config[i]][1]); |
| mchbar_write16(0x400 * i + 0x294, ddr2_odt[s->dimm_config[i]][0]); |
| } else { |
| mchbar_write16(0x400 * i + 0x298, ddr3_odt[s->dimm_config[i]][1]); |
| mchbar_write16(0x400 * i + 0x294, ddr3_odt[s->dimm_config[i]][0]); |
| } |
| u16 reg16 = mchbar_read16(0x400 * i + 0x29c); |
| reg16 &= ~0xfff; |
| reg16 |= (s->spd_type == DDR2 ? 0x66b : 0x778); |
| mchbar_write16(0x400 * i + 0x29c, reg16); |
| mchbar_clrsetbits32(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 */ |
| mchbar_clrsetbits32(C0CKECTRL, 1 << 0, 0xf << 20); |
| mchbar_clrsetbits32(C1CKECTRL, 1 << 0, 0xf << 20); |
| /* Set size of each rank to 128M */ |
| mchbar_write16(C0DRA01, 0x0101); |
| mchbar_write16(C0DRA23, 0x0101); |
| mchbar_write16(C1DRA01, 0x0101); |
| mchbar_write16(C1DRA23, 0x0101); |
| mchbar_write16(C0DRB0, 0x0002); |
| mchbar_write16(C0DRB1, 0x0004); |
| mchbar_write16(C0DRB2, 0x0006); |
| mchbar_write16(C0DRB3, 0x0008); |
| mchbar_write16(C1DRB0, 0x0002); |
| mchbar_write16(C1DRB1, 0x0004); |
| mchbar_write16(C1DRB2, 0x0006); |
| /* In stacked mode the last present rank on ch1 needs to have its |
| size doubled in c1drbx */ |
| mchbar_write16(C1DRB3, 0x0010); |
| mchbar_setbits8(0x111, STACKED_MEM); |
| mchbar_write32(0x104, 0); |
| mchbar_write16(0x102, 0x400); |
| mchbar_write8(0x110, 2 << 5 | 3 << 3); |
| mchbar_write16(0x10e, 0); |
| mchbar_write32(0x108, 0); |
| pci_write_config16(HOST_BRIDGE, D0F0_TOLUD, 0x4000); |
| /* TOM(64M unit) = 1G = TOTAL_CHANNELS * RANKS_PER_CHANNEL * 128M */ |
| pci_write_config16(HOST_BRIDGE, D0F0_TOM, 0x10); |
| /* TOUUD(1M unit) = 1G = TOTAL_CHANNELS * RANKS_PER_CHANNEL * 128M */ |
| pci_write_config16(HOST_BRIDGE, D0F0_TOUUD, 0x0400); |
| pci_write_config32(HOST_BRIDGE, D0F0_GBSM, 0x40000000); |
| pci_write_config32(HOST_BRIDGE, D0F0_BGSM, 0x40000000); |
| pci_write_config32(HOST_BRIDGE, D0F0_TSEG, 0x40000000); |
| } |
| |
| u32 test_address(int channel, int rank) |
| { |
| ASSERT(channel <= 1 && rank < 4); |
| return channel * 512 * MiB + rank * 128 * MiB; |
| } |
| |
| /* DDR3 Rank1 Address mirror |
| swap the following pins: |
| A3<->A4, A5<->A6, A7<->A8, BA0<->BA1 */ |
| static u32 mirror_shift_bit(const u32 data, u8 bit) |
| { |
| u32 temp0 = data, temp1 = data; |
| temp0 &= 1 << bit; |
| temp0 <<= 1; |
| temp1 &= 1 << (bit + 1); |
| temp1 >>= 1; |
| return (data & ~(3 << bit)) | temp0 | temp1; |
| } |
| |
| void send_jedec_cmd(const struct sysinfo *s, u8 r, u8 ch, u8 cmd, u32 val) |
| { |
| u32 addr = test_address(ch, r); |
| u8 data8 = cmd; |
| u32 data32; |
| |
| if (s->spd_type == DDR3 && (r & 1) |
| && s->dimms[ch * 2 + (r >> 1)].mirrored) { |
| data8 = (u8)mirror_shift_bit(data8, 4); |
| } |
| |
| mchbar_clrsetbits8(0x271, 0x3e, data8); |
| mchbar_clrsetbits8(0x671, 0x3e, data8); |
| data32 = val; |
| if (s->spd_type == DDR3 && (r & 1) |
| && s->dimms[ch * 2 + (r >> 1)].mirrored) { |
| data32 = mirror_shift_bit(data32, 3); |
| data32 = mirror_shift_bit(data32, 5); |
| data32 = mirror_shift_bit(data32, 7); |
| } |
| data32 <<= 3; |
| |
| read32p(data32 | addr); |
| udelay(10); |
| mchbar_clrsetbits8(0x271, 0x3e, NORMALOP_CMD); |
| mchbar_clrsetbits8(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; |
| } |
| send_jedec_cmd(s, r, ch, jedec[i][0], v); |
| udelay(1); |
| printk(RAM_SPEW, "Jedec step %d\n", i); |
| } |
| } |
| printk(BIOS_DEBUG, "MRS done\n"); |
| } |
| |
| static void jedec_ddr3(struct sysinfo *s) |
| { |
| int ch, r, dimmconfig, cmd, ddr3_freq; |
| |
| u8 ddr3_emrs2_rtt_wr_config[16][4] = { /* [config][Rank] */ |
| {0, 0, 0, 0}, /* NC_NC */ |
| {0, 0, 0, 0}, /* x8ss_NC */ |
| {0, 0, 0, 0}, /* x8ds_NC */ |
| {0, 0, 0, 0}, /* x16ss_NC */ |
| {0, 0, 0, 0}, /* NC_x8ss */ |
| {2, 0, 2, 0}, /* x8ss_x8ss */ |
| {2, 2, 2, 0}, /* x8ds_x8ss */ |
| {2, 0, 2, 0}, /* x16ss_x8ss */ |
| {0, 0, 0, 0}, /* NC_x8ss */ |
| {2, 0, 2, 2}, /* x8ss_x8ds */ |
| {2, 2, 2, 2}, /* x8ds_x8ds */ |
| {2, 0, 2, 2}, /* x16ss_x8ds */ |
| {0, 0, 0, 0}, /* NC_x16ss */ |
| {2, 0, 2, 0}, /* x8ss_x16ss */ |
| {2, 2, 2, 0}, /* x8ds_x16ss */ |
| {2, 0, 2, 0}, /* x16ss_x16ss */ |
| }; |
| |
| printk(BIOS_DEBUG, "MRS...\n"); |
| |
| ddr3_freq = s->selected_timings.mem_clk - MEM_CLOCK_800MHz; |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| printk(BIOS_DEBUG, "CH%d: Found Rank %d\n", ch, r); |
| send_jedec_cmd(s, r, ch, NOP_CMD, 0); |
| udelay(200); |
| dimmconfig = s->dimm_config[ch]; |
| cmd = ddr3_freq << 3; /* actually twl - 5 which is same */ |
| cmd |= ddr3_emrs2_rtt_wr_config[dimmconfig][r] << 9; |
| send_jedec_cmd(s, r, ch, EMRS2_CMD, cmd); |
| send_jedec_cmd(s, r, ch, EMRS3_CMD, 0); |
| cmd = ddr3_emrs1_rtt_nom_config[dimmconfig][r] << 2; |
| /* Hardcode output drive strength to 34 Ohm / RZQ/7 (why??) */ |
| cmd |= (1 << 1); |
| send_jedec_cmd(s, r, ch, EMRS1_CMD, cmd); |
| /* Burst type interleaved, burst length 8, Reset DLL, |
| Precharge PD: DLL on */ |
| send_jedec_cmd(s, r, ch, MRS_CMD, (1 << 3) | (1 << 8) |
| | (1 << 12) | ((s->selected_timings.CAS - 4) << 4) |
| | ((s->selected_timings.tWR - 4) << 9)); |
| send_jedec_cmd(s, r, ch, ZQCAL_CMD, (1 << 10)); |
| } |
| 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 = mchbar_read32(0x400 * channel + 0x248); |
| reg32 &= ~0xf0000; |
| reg32 |= s->rcven_t[channel].min_common_coarse << 16; |
| mchbar_write32(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 = mchbar_read8(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; |
| mchbar_write8(0x400 * channel + 0x560 + lane * 4, pi_tap); |
| } |
| mchbar_write16(0x400 * channel + 0x58c, medium); |
| mchbar_write16(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, lastrank_ch1; |
| 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; |
| } |
| } |
| mchbar_write32(0x208, c0dra); |
| mchbar_write32(0x608, c1dra); |
| |
| mchbar_clrsetbits8(0x262, 0xf0, (rankpop0 << 4) & 0xf0); |
| mchbar_clrsetbits8(0x662, 0xf0, (rankpop1 << 4) & 0xf0); |
| |
| if (s->spd_type == DDR3) { |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| /* ZQCAL enable */ |
| mchbar_setbits32(0x269 + 0x400 * ch, 1 << 26); |
| } |
| } |
| |
| if (ONLY_DIMMA_IS_POPULATED(s->dimms, 0) || ONLY_DIMMB_IS_POPULATED(s->dimms, 0)) |
| mchbar_setbits8(0x260, 1); |
| if (ONLY_DIMMA_IS_POPULATED(s->dimms, 1) || ONLY_DIMMB_IS_POPULATED(s->dimms, 1)) |
| mchbar_setbits8(0x660, 1); |
| |
| /* DRB */ |
| lastrank_ch1 = 0; |
| 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]); |
| } |
| mchbar_write16(0x200 + 2 * r, c0drb); |
| } else { |
| if (RANK_IS_POPULATED(s->dimms, ch, r)) { |
| lastrank_ch1 = r; |
| dra1 = (c1dra >> (8*r)) & 0x7f; |
| c1drb = (u16)(c1drb + drbtab[dra1]); |
| } |
| mchbar_write16(0x600 + 2 * r, c1drb); |
| } |
| } |
| |
| s->channel_capacity[0] = c0drb << 6; |
| s->channel_capacity[1] = c1drb << 6; |
| |
| /* |
| * In stacked mode the last present rank on ch1 needs to have its |
| * size doubled in c1drbx. All subsequent ranks need the same setting |
| * according to: "Intel 4 Series Chipset Family Datasheet" |
| */ |
| if (s->stacked_mode) { |
| for (r = lastrank_ch1; r < 4; r++) |
| mchbar_write16(0x600 + 2 * r, 2 * c1drb); |
| } |
| |
| 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; |
| |
| if (s->stacked_mode) { |
| mchbar_setbits8(0x111, STACKED_MEM); |
| } else { |
| mchbar_clrbits8(0x111, STACKED_MEM); |
| mchbar_setbits8(0x111, 1 << 4); |
| } |
| |
| if (s->stacked_mode) { |
| dual_channel_size = 0; |
| } else 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 */ |
| mchbar_write16(0x100, size_me); |
| /* Set ME UMA Present bit */ |
| mchbar_setbits8(0x111, 1 << 0); |
| } |
| dual_channel_size = MIN(size_ch0 - size_me, size_ch1) * 2; |
| } |
| |
| mchbar_write16(0x104, dual_channel_size); |
| single_channel_size = size_ch0 + size_ch1 - dual_channel_size; |
| mchbar_write16(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) { |
| if (!(s->stacked_mode && size_ch0 != 0 && size_ch1 != 0)) { |
| map |= 0x04; |
| if (size_ch0 <= size_ch1) |
| map |= 0x01; |
| } |
| } else { |
| if (s->stacked_mode == 0 && size_ch0 - size_me < size_ch1) |
| map |= 0x04; |
| } |
| |
| mchbar_write8(0x110, map); |
| mchbar_write16(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 (s->stacked_mode && size_ch1 != 0) { |
| single_channel_offset = 0; |
| } else 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; |
| } |
| |
| mchbar_write16(0x108, single_channel_offset); |
| mchbar_write16(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}; |
| |
| ggc = pci_read_config16(HOST_BRIDGE, 0x52); |
| gfxsize = ggc2uma[(ggc & 0xf0) >> 4]; |
| gttsize = ggc2gtt[(ggc & 0xf00) >> 8]; |
| /* TSEG 2M, This amount can easily be covered by SMRR MTRR's, |
| which requires to have TSEG_BASE aligned to TSEG_SIZE. */ |
| tsegsize = 2; |
| 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(HOST_BRIDGE, 0xb0, tolud << 4); |
| pci_write_config16(HOST_BRIDGE, 0xa0, tom >> 6); |
| if (reclaim) { |
| pci_write_config16(HOST_BRIDGE, 0x98, (u16)(reclaimbase >> 6)); |
| pci_write_config16(HOST_BRIDGE, 0x9a, (u16)(reclaimlimit >> 6)); |
| } |
| pci_write_config16(HOST_BRIDGE, 0xa2, touud); |
| pci_write_config32(HOST_BRIDGE, 0xa4, gfxbase << 20); |
| pci_write_config32(HOST_BRIDGE, 0xa8, gttbase << 20); |
| /* Enable and set TSEG size to 2M */ |
| pci_update_config8(HOST_BRIDGE, D0F0_ESMRAMC, ~0x07, (1 << 1) | (1 << 0)); |
| pci_write_config32(HOST_BRIDGE, 0xac, tsegbase << 20); |
| } |
| |
| static void set_enhanced_mode(struct sysinfo *s) |
| { |
| u8 ch, reg8; |
| u32 reg32; |
| |
| mchbar_write32(0xfb0, 0x1000d024); |
| mchbar_write32(0xfb4, 0xc842); |
| mchbar_write32(0xfbc, 0xf); |
| mchbar_write32(0xfc4, 0xfe22244); |
| mchbar_write8(0x12f, 0x5c); |
| mchbar_setbits8(0xfb0, 1 << 0); |
| if (s->selected_timings.mem_clk <= MEM_CLOCK_800MHz) |
| mchbar_setbits8(0x12f, 1 << 1); |
| else |
| mchbar_clrbits8(0x12f, 1 << 1); |
| mchbar_clrsetbits8(0x6c0, 0xf0, 0xa0); |
| mchbar_write32(0xfa8, 0x30d400); |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| mchbar_setbits8(0x400 * ch + 0x26c, 1); |
| mchbar_write32(0x400 * ch + 0x278, 0x88141881); |
| mchbar_write16(0x400 * ch + 0x27c, 0x0041); |
| mchbar_write8(0x400 * ch + 0x292, 0xf2); |
| mchbar_setbits16(0x400 * ch + 0x272, 1 << 8); |
| mchbar_clrsetbits8(0x400 * ch + 0x243, 3, 1); |
| mchbar_write32(0x400 * ch + 0x288, 0x8040200); |
| mchbar_write32(0x400 * ch + 0x28c, 0xff402010); |
| mchbar_write32(0x400 * ch + 0x290, 0x4f2091c); |
| } |
| |
| reg8 = pci_read_config8(HOST_BRIDGE, 0xf0); |
| pci_write_config8(HOST_BRIDGE, 0xf0, reg8 | 1); |
| mchbar_clrsetbits32(0xfa0, 0x20002, 0x2 | (s->selected_timings.fsb_clk == |
| FSB_CLOCK_1333MHz ? 0x20000 : 0)); |
| reg32 = 0x219100c2; |
| if (s->selected_timings.fsb_clk == FSB_CLOCK_1333MHz) { |
| reg32 |= 1; |
| if (s->selected_timings.mem_clk == MEM_CLOCK_1066MHz) |
| reg32 &= ~0x10000; |
| } else if (s->selected_timings.fsb_clk == FSB_CLOCK_1066MHz) { |
| reg32 &= ~0x10000; |
| } |
| mchbar_clrsetbits32(0xfa4, 0x219100c3, reg32); |
| reg32 = 0x44a00; |
| switch (s->selected_timings.fsb_clk) { |
| case FSB_CLOCK_1333MHz: |
| reg32 |= 0x62; |
| break; |
| case FSB_CLOCK_1066MHz: |
| reg32 |= 0x5a; |
| break; |
| default: |
| case FSB_CLOCK_800MHz: |
| reg32 |= 0x53; |
| break; |
| } |
| |
| mchbar_write32(0x2c, reg32); |
| mchbar_write32(0x30, 0x1f5a86); |
| mchbar_write32(0x34, 0x1902810); |
| mchbar_write32(0x38, 0xf7000000); |
| reg32 = 0x23014410; |
| if (s->selected_timings.fsb_clk > FSB_CLOCK_800MHz) |
| reg32 = (reg32 & ~0x2000000) | 0x44000000; |
| mchbar_write32(0x3c, reg32); |
| reg32 = 0x8f038000; |
| if (s->selected_timings.fsb_clk == FSB_CLOCK_1333MHz) |
| reg32 &= ~0x4000000; |
| mchbar_clrsetbits32(0x40, 0x8f038000, reg32); |
| reg32 = 0x00013001; |
| if (s->selected_timings.fsb_clk < FSB_CLOCK_1333MHz) |
| reg32 |= 0x20000; |
| mchbar_write32(0x20, reg32); |
| pci_write_config8(HOST_BRIDGE, 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; |
| |
| if (s->spd_type == DDR2) { |
| 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; |
| } else { /* DDR3 */ |
| int ddr3_idx = s->selected_timings.mem_clk - MEM_CLOCK_800MHz; |
| int cas_idx = s->selected_timings.CAS - 5; |
| |
| twl = s->selected_timings.mem_clk - MEM_CLOCK_800MHz + 5; |
| reg1 = ddr3_c2_tab[s->nmode - 1][ddr3_idx][cas_idx][0]; |
| reg2 = ddr3_c2_tab[s->nmode - 1][ddr3_idx][cas_idx][1]; |
| reg3 = 0x764; |
| reg4 = 0x78c8; |
| x264 = ddr3_c2_x264[ddr3_idx][cas_idx]; |
| x23c = ddr3_c2_x23c[ddr3_idx][cas_idx]; |
| switch (s->selected_timings.mem_clk) { |
| case MEM_CLOCK_800MHz: |
| default: |
| clkgate = 0x280000; |
| break; |
| case MEM_CLOCK_1066MHz: |
| clkgate = 0x350000; |
| break; |
| case MEM_CLOCK_1333MHz: |
| clkgate = 0xff0000; |
| break; |
| } |
| } |
| |
| if (CHANNEL_IS_POPULATED(s->dimms, 0) && CHANNEL_IS_POPULATED(s->dimms, 1)) |
| mchbar_write32(0x14, 0x0010461f); |
| else |
| mchbar_write32(0x14, 0x0010691f); |
| mchbar_write32(0x18, 0xdf6437f7); |
| mchbar_write32(0x1c, 0); |
| mchbar_clrsetbits32(0x24, 0xe0000000, 0x60000000); |
| mchbar_clrsetbits32(0x44, 0x1fef0000, 0x6b0000); |
| mchbar_write16(0x115, reg1); |
| mchbar_clrsetbits32(0x117, 0xffffff, reg2); |
| mchbar_write8(0x124, 0x7); |
| /* not sure if dummy reads are needed */ |
| mchbar_clrsetbits16(0x12a, ~0, 0x80); |
| mchbar_clrsetbits8(0x12c, ~0, 0xa0); |
| mchbar_clrbits16(0x174, 1 << 15); |
| mchbar_clrsetbits16(0x188, 0x1f00, 0x1f00); |
| mchbar_clrbits8(0x18c, 1 << 3); |
| mchbar_setbits8(0x192, 1); |
| mchbar_setbits8(0x193, 0xf); |
| mchbar_clrsetbits16(0x1b4, 0x480, 0x80); |
| mchbar_clrsetbits16(0x210, 0x1fff, 0x3f); /* clockgating iii */ |
| /* non-aligned access: possible bug? */ |
| mchbar_clrsetbits32(0x6d1, 0xff03ff, 0x100 | clkgate); |
| mchbar_clrsetbits8(0x212, 0x7f, 0x7f); |
| mchbar_clrsetbits32(0x2c0, 0xffff0, 0xcc5f0); |
| mchbar_clrsetbits8(0x2c4, 0x70, 0x70); |
| /* non-aligned access: possible bug? */ |
| mchbar_clrsetbits32(0x2d1, 0xffffff, 0xff2831); /* clockgating i */ |
| mchbar_write32(0x2d4, 0x40453600); |
| mchbar_write32(0x300, 0xc0b0a08); |
| mchbar_write32(0x304, 0x6040201); |
| mchbar_clrsetbits32(0x30c, 0x43c0f, 0x41405); |
| mchbar_write16(0x610, reg3); |
| mchbar_write16(0x612, reg4); |
| mchbar_clrsetbits32(0x62c, 0xc000000, 0x4000000); |
| mchbar_write32(0xae4, 0); |
| mchbar_clrsetbits32(0xc00, 0xf0000, 0x10000); |
| mchbar_write32(0xf00, 0x393a3b3c); |
| mchbar_write32(0xf04, 0x3d3e3f40); |
| mchbar_write32(0xf08, 0x393a3b3c); |
| mchbar_write32(0xf0c, 0x3d3e3f40); |
| mchbar_clrbits32(0xf18, 0xfff00001); |
| mchbar_write32(0xf48, 0xfff0ffe0); |
| mchbar_write32(0xf4c, 0xffc0ff00); |
| mchbar_write32(0xf50, 0xfc00f000); |
| mchbar_write32(0xf54, 0xc0008000); |
| mchbar_clrsetbits32(0xf6c, 0xffff0000, 0xffff0000); |
| mchbar_clrbits32(0xfac, 0x80000000); |
| mchbar_clrbits32(0xfb8, 0xff000000); |
| mchbar_clrsetbits32(0xfbc, 0x7f800, 0xf000); |
| mchbar_write32(0x1104, 0x3003232); |
| mchbar_write32(0x1108, 0x74); |
| if (s->selected_timings.fsb_clk == FSB_CLOCK_800MHz) |
| mchbar_write32(0x110c, 0xaa); |
| else |
| mchbar_write32(0x110c, 0x100); |
| mchbar_write32(0x1110, 0x10810350 & ~0x78); |
| mchbar_write32(0x1114, 0); |
| x592 = 0xff; |
| if (pci_read_config8(HOST_BRIDGE, 0x8) < 3) |
| x592 = ~0x4; |
| |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| mchbar_write8(0x400 * ch + 0x239, twl + 15); |
| mchbar_write16(0x400 * ch + 0x23c, x23c); |
| mchbar_clrsetbits32(0x400 * ch + 0x248, 0x706033, 0x406033); |
| mchbar_clrsetbits32(0x400 * ch + 0x260, 1 << 16, 1 << 16); |
| mchbar_write8(0x400 * ch + 0x264, x264); |
| mchbar_clrsetbits8(0x400 * ch + 0x592, 0x3f, 0x3c & x592); |
| mchbar_clrsetbits8(0x400 * ch + 0x593, 0x1f, 0x1e); |
| } |
| |
| for (lane = 0; lane < 8; lane++) |
| mchbar_clrbits8(0x561 + (lane << 2), 1 << 3); |
| } |
| |
| static void software_ddr3_reset(struct sysinfo *s) |
| { |
| printk(BIOS_DEBUG, "Software initiated DDR3 reset.\n"); |
| mchbar_setbits8(0x1a8, 1 << 1); |
| mchbar_clrbits8(0x5da, 1 << 7); |
| mchbar_clrbits8(0x1a8, 1 << 1); |
| mchbar_clrsetbits8(0x5da, 3, 1); |
| udelay(200); |
| mchbar_clrbits8(0x1a8, 1 << 1); |
| mchbar_setbits8(0x5da, 1 << 7); |
| mchbar_clrbits8(0x5da, 1 << 7); |
| udelay(500); |
| mchbar_setbits8(0x5da, 3); |
| mchbar_clrbits8(0x5da, 3); |
| /* After write leveling the dram needs to be reset and reinitialised */ |
| jedec_ddr3(s); |
| } |
| |
| 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 */ |
| mchbar_setbits32(PMSTS_MCHBAR, PMSTS_BOTH_SELFREFRESH); |
| |
| /* Clear host clk gate reg */ |
| mchbar_setbits32(0x1c, 0xffffffff); |
| |
| /* Select type */ |
| if (s->spd_type == DDR2) |
| mchbar_clrbits8(0x1a8, 1 << 2); |
| else |
| mchbar_setbits8(0x1a8, 1 << 2); |
| |
| /* Set frequency */ |
| mchbar_clrsetbits32(CLKCFG_MCHBAR, CLKCFG_MEMCLK_MASK, |
| (s->selected_timings.mem_clk << CLKCFG_MEMCLK_SHIFT) | CLKCFG_UPDATE); |
| |
| /* Overwrite value if chipset rejects it */ |
| s->selected_timings.mem_clk = (mchbar_read8(CLKCFG_MCHBAR) & |
| CLKCFG_MEMCLK_MASK) >> CLKCFG_MEMCLK_SHIFT; |
| 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 (mchbar_read8(0x130) & 1) |
| ; |
| printk(BIOS_DEBUG, "Done RCOMP update\n"); |
| } |
| |
| pre_jedec_memory_map(); |
| |
| /* IOBUFACT */ |
| if (CHANNEL_IS_POPULATED(s->dimms, 0)) { |
| mchbar_clrsetbits8(0x5dd, 0x3f, 0x3f); |
| mchbar_setbits8(0x5d8, 0x7); |
| } |
| if (CHANNEL_IS_POPULATED(s->dimms, 1)) { |
| if (pci_read_config8(HOST_BRIDGE, 0x8) < 2) { |
| mchbar_clrsetbits8(0x5dd, 0x3f, 0x3f); |
| mchbar_setbits8(0x5d8, 1); |
| } |
| mchbar_setbits8(0x9dd, 0x3f); |
| mchbar_setbits8(0x9d8, 0x7); |
| } |
| |
| /* DDR3 reset */ |
| if ((s->spd_type == DDR3) && (s->boot_path != BOOT_PATH_RESUME)) { |
| printk(BIOS_DEBUG, "DDR3 Reset.\n"); |
| mchbar_clrbits8(0x1a8, 1 << 1); |
| mchbar_setbits8(0x5da, 1 << 7); |
| udelay(500); |
| mchbar_clrbits8(0x1a8, 1 << 1); |
| mchbar_clrbits8(0x5da, 1 << 7); |
| udelay(500); |
| } |
| |
| /* Pre jedec */ |
| mchbar_setbits8(0x40, 1 << 1); |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| mchbar_setbits32(0x400 * ch + 0x260, 1 << 27); |
| } |
| mchbar_setbits16(0x212, 0xf << 12); |
| mchbar_setbits16(0x212, 0xf << 8); |
| printk(BIOS_DEBUG, "Done pre-jedec\n"); |
| |
| /* JEDEC reset */ |
| if (s->boot_path != BOOT_PATH_RESUME) { |
| if (s->spd_type == DDR2) |
| jedec_ddr2(s); |
| else /* DDR3 */ |
| jedec_ddr3(s); |
| } |
| |
| printk(BIOS_DEBUG, "Done jedec steps\n"); |
| |
| if (s->spd_type == DDR3) { |
| if (!fast_boot) |
| search_write_leveling(s); |
| if (s->boot_path == BOOT_PATH_NORMAL) |
| software_ddr3_reset(s); |
| } |
| |
| /* After JEDEC reset */ |
| mchbar_clrbits8(0x40, 1 << 1); |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| reg32 = (2 << 18); |
| reg32 |= post_jedec_tab[s->selected_timings.fsb_clk] |
| [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][0] << 13; |
| if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz && |
| s->selected_timings.fsb_clk == FSB_CLOCK_1066MHz && |
| ch == 1) { |
| reg32 |= (post_jedec_tab[s->selected_timings.fsb_clk] |
| [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1] - 1) << 8; |
| } else { |
| reg32 |= post_jedec_tab[s->selected_timings.fsb_clk] |
| [s->selected_timings.mem_clk - MEM_CLOCK_667MHz][1] << 8; |
| } |
| mchbar_clrsetbits32(0x400 * ch + 0x274, 0xfff00, reg32); |
| mchbar_clrbits8(0x400 * ch + 0x274, 1 << 7); |
| mchbar_setbits8(0x400 * ch + 0x26c, 1 << 0); |
| mchbar_write32(0x400 * ch + 0x278, 0x88141881); |
| mchbar_write16(0x400 * ch + 0x27c, 0x41); |
| mchbar_write8(0x400 * ch + 0x292, 0xf2); |
| mchbar_setbits8(0x400 * ch + 0x271, 0xe); |
| } |
| mchbar_setbits8(0x2c4, 1 << 3); |
| mchbar_setbits8(0x2c3, 1 << 6); |
| mchbar_setbits8(0x2c4, 1 << 2); |
| |
| printk(BIOS_DEBUG, "Done post-jedec\n"); |
| |
| /* Set DDR init complete */ |
| FOR_EACH_POPULATED_CHANNEL(s->dimms, ch) { |
| mchbar_setbits32(0x400 * ch + 0x268, 3 << 30); |
| } |
| |
| /* Dummy reads */ |
| if (s->boot_path == BOOT_PATH_NORMAL) { |
| FOR_EACH_POPULATED_RANK(s->dimms, ch, r) { |
| for (bank = 0; bank < 4; bank++) |
| read32p(test_address(ch, r) | 0x800000 | (bank << 12)); |
| } |
| } |
| printk(BIOS_DEBUG, "Done dummy reads\n"); |
| |
| /* Receive enable */ |
| sdram_program_receive_enable(s, fast_boot); |
| printk(BIOS_DEBUG, "Done rcven\n"); |
| |
| /* Finish rcven */ |
| FOR_EACH_CHANNEL(ch) { |
| mchbar_clrbits8(0x400 * ch + 0x5d8, 7 << 1); |
| mchbar_setbits8(0x400 * ch + 0x5d8, 1 << 1); |
| mchbar_setbits8(0x400 * ch + 0x5d8, 1 << 2); |
| mchbar_setbits8(0x400 * ch + 0x5d8, 1 << 3); |
| } |
| mchbar_setbits8(0x5dc, 1 << 7); |
| mchbar_clrbits8(0x5dc, 1 << 7); |
| mchbar_setbits8(0x5dc, 1 << 7); |
| |
| /* 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 */ |
| mchbar_clrsetbits16(0x160, 0xfff, 0x999); |
| mchbar_setbits16(0x1b4, 0x3000); |
| mchbar_setbits8(0x130, 1 << 7 | 1 << 1); |
| 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)) |
| mchbar_setbits8(0xa2f, 1 << 0); |
| if (RANK_IS_POPULATED(s->dimms, 0, 1) || RANK_IS_POPULATED(s->dimms, 1, 1)) |
| mchbar_setbits8(0xa2f, 1 << 1); |
| mchbar_setbits32(0xa30, 1 << 26); |
| } |
| |
| printk(BIOS_DEBUG, "Done raminit\n"); |
| } |