From 27f0ca18bc6a9a65dcd59664330fdafbf7776847 Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Tue, 9 May 2017 18:38:14 +0200 Subject: nb/intel/x4x: Use a struct for dll settings instead of an array MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This makes the code more readable since it avoids messing with two dimensional arrays and needing remember what the indices mean. Also introduces an unused coarse element which is 0 for all default DLL settings on DDR2. Change-Id: I28377d2d15d0e6a0d12545b837d6369e0dc26b92 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/19767 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Patrick Rudolph --- src/northbridge/intel/x4x/raminit_ddr2.c | 208 +++++++++++++++---------------- src/northbridge/intel/x4x/x4x.h | 9 ++ 2 files changed, 113 insertions(+), 104 deletions(-) (limited to 'src/northbridge') diff --git a/src/northbridge/intel/x4x/raminit_ddr2.c b/src/northbridge/intel/x4x/raminit_ddr2.c index 3a4cf03ea9..bb5ad61d6f 100644 --- a/src/northbridge/intel/x4x/raminit_ddr2.c +++ b/src/northbridge/intel/x4x/raminit_ddr2.c @@ -313,177 +313,177 @@ static void launch_ddr2(struct sysinfo *s) MCHBAR32(0x2c4) = (MCHBAR32(0x2c4) & ~0xf) | 0xc; } -static void clkset0(u8 ch, u8 setting[5]) +static void clkset0(u8 ch, const struct dll_setting *setting) { MCHBAR16(0x400*ch + 0x5a0) = (MCHBAR16(0x400*ch + 0x5a0) & ~0xc440) | - (setting[4] << 14) | - (setting[3] << 6) | - (setting[2] << 10); + (setting->clk_delay << 14) | + (setting->db_sel << 6) | + (setting->db_en << 10); MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x581) = (MCHBAR8(0x400*ch + 0x581) & ~0xf) | - setting[0]; + setting->tap; } -static void clkset1(u8 ch, u8 setting[5]) +static void clkset1(u8 ch, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x5a0) = (MCHBAR32(0x400*ch + 0x5a0) & ~0x30880) | - (setting[4] << 16) | - (setting[3] << 7) | - (setting[2] << 11); + (setting->clk_delay << 16) | + (setting->db_sel << 7) | + (setting->db_en << 11); MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x582) = (MCHBAR8(0x400*ch + 0x582) & ~0xf) | - setting[0]; + setting->tap; } -static void ctrlset0(u8 ch, u8 setting[5]) +static void ctrlset0(u8 ch, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x3300000) | - (setting[4] << 24) | - (setting[3] << 20) | - (setting[2] << 21); + (setting->clk_delay << 24) | + (setting->db_sel << 20) | + (setting->db_en << 21); MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x584) = (MCHBAR8(0x400*ch + 0x584) & ~0xf) | - setting[0]; + setting->tap; } -static void ctrlset1(u8 ch, u8 setting[5]) +static void ctrlset1(u8 ch, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x59c) = (MCHBAR32(0x400*ch + 0x59c) & ~0x18c00000) | - (setting[4] << 27) | - (setting[3] << 22) | - (setting[2] << 23); + (setting->clk_delay << 27) | + (setting->db_sel << 22) | + (setting->db_en << 23); MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x585) = (MCHBAR8(0x400*ch + 0x585) & ~0xf) | - setting[0]; + setting->tap; } -static void ctrlset2(u8 ch, u8 setting[5]) +static void ctrlset2(u8 ch, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) | - (setting[4] << 14) | - (setting[3] << 12) | - (setting[2] << 13); + (setting->clk_delay << 14) | + (setting->db_sel << 12) | + (setting->db_en << 13); MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x586) = (MCHBAR8(0x400*ch + 0x586) & ~0xf) | - setting[0]; + setting->tap; } -static void ctrlset3(u8 ch, u8 setting[5]) +static void ctrlset3(u8 ch, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x598) = (MCHBAR32(0x400*ch + 0x598) & ~0x18c00000) | - (setting[4] << 10) | - (setting[3] << 8) | - (setting[2] << 9); + (setting->clk_delay << 10) | + (setting->db_sel << 8) | + (setting->db_en << 9); MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x587) = (MCHBAR8(0x400*ch + 0x587) & ~0xf) | - setting[0]; + setting->tap; } -static void cmdset(u8 ch, u8 setting[5]) +static void cmdset(u8 ch, const struct dll_setting *setting) { MCHBAR8(0x400*ch + 0x598) = (MCHBAR8(0x400*ch + 0x598) & ~0x30) | - (setting[4] << 4); + (setting->clk_delay << 4); MCHBAR8(0x400*ch + 0x594) = (MCHBAR8(0x400*ch + 0x594) & ~0x60) | - (setting[3] << 5) | - (setting[2] << 6); + (setting->db_sel << 5) | + (setting->db_en << 6); MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x580) = (MCHBAR8(0x400*ch + 0x580) & ~0xf) | - setting[0]; + setting->tap; } -static void dqsset(u8 ch, u8 lane, u8 setting[5]) +static void dqsset(u8 ch, u8 lane, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x5fc) = MCHBAR32(0x400*ch + 0x5fc) & ~(2 << (lane*4)); MCHBAR32(0x400*ch + 0x5b4) = (MCHBAR32(0x400*ch + 0x5b4) & ~(0x201 << lane)) | - (setting[2] << (9 + lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5b8) = (MCHBAR32(0x400*ch + 0x5b8) & ~(0x201 << lane)) | - (setting[2] << (9 + lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5bc) = (MCHBAR32(0x400*ch + 0x5bc) & ~(0x201 << lane)) | - (setting[2] << (9 + lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5c0) = (MCHBAR32(0x400*ch + 0x5c0) & ~(0x201 << lane)) | - (setting[2] << (9 + lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5c8) = (MCHBAR32(0x400*ch + 0x5c8) & ~(0x3 << (16+lane*2))) | - (setting[4] << (16+lane*2)); + (setting->clk_delay << (16+lane*2)); MCHBAR32(0x400*ch + 0x5cc) = (MCHBAR32(0x400*ch + 0x5cc) & ~(0x3 << (16+lane*2))) | - (setting[4] << (16+lane*2)); + (setting->clk_delay << (16+lane*2)); MCHBAR32(0x400*ch + 0x5d0) = (MCHBAR32(0x400*ch + 0x5d0) & ~(0x3 << (16+lane*2))) | - (setting[4] << (16+lane*2)); + (setting->clk_delay << (16+lane*2)); MCHBAR32(0x400*ch + 0x5d4) = (MCHBAR32(0x400*ch + 0x5d4) & ~(0x3 << (16+lane*2))) | - (setting[4] << (16+lane*2)); + (setting->clk_delay << (16+lane*2)); MCHBAR8(0x400*ch + 0x520 + lane*4) = (MCHBAR8(0x400*ch + 0x520 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x520 + lane*4) = (MCHBAR8(0x400*ch + 0x520 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x521 + lane*4) = (MCHBAR8(0x400*ch + 0x521 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x521 + lane*4) = (MCHBAR8(0x400*ch + 0x521 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x522 + lane*4) = (MCHBAR8(0x400*ch + 0x522 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x522 + lane*4) = (MCHBAR8(0x400*ch + 0x522 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x523 + lane*4) = (MCHBAR8(0x400*ch + 0x523 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x523 + lane*4) = (MCHBAR8(0x400*ch + 0x523 + lane*4) & ~0xf) | - setting[0]; + setting->tap; } -static void dqset(u8 ch, u8 lane, u8 setting[5]) +static void dqset(u8 ch, u8 lane, const struct dll_setting *setting) { MCHBAR32(0x400*ch + 0x5fc) = MCHBAR32(0x400*ch + 0x5fc) & ~(1 << (lane*4)); MCHBAR32(0x400*ch + 0x5a4) = (MCHBAR32(0x400*ch + 0x5a4) & ~(0x201 << lane)) | - (setting[2] << (9+lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5a8) = (MCHBAR32(0x400*ch + 0x5a8) & ~(0x201 << lane)) | - (setting[2] << (9+lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5ac) = (MCHBAR32(0x400*ch + 0x5ac) & ~(0x201 << lane)) | - (setting[2] << (9+lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5b0) = (MCHBAR32(0x400*ch + 0x5b0) & ~(0x201 << lane)) | - (setting[2] << (9+lane)) | - (setting[3] << lane); + (setting->db_en << (9 + lane)) | + (setting->db_sel << lane); MCHBAR32(0x400*ch + 0x5c8) = (MCHBAR32(0x400*ch + 0x5c8) & ~(0x3 << (lane*2))) | - (setting[4] << (2*lane)); + (setting->clk_delay << (2 * lane)); MCHBAR32(0x400*ch + 0x5cc) = (MCHBAR32(0x400*ch + 0x5cc) & ~(0x3 << (lane*2))) | - (setting[4] << (2*lane)); + (setting->clk_delay << (2 * lane)); MCHBAR32(0x400*ch + 0x5d0) = (MCHBAR32(0x400*ch + 0x5d0) & ~(0x3 << (lane*2))) | - (setting[4] << (2*lane)); + (setting->clk_delay << (2 * lane)); MCHBAR32(0x400*ch + 0x5d4) = (MCHBAR32(0x400*ch + 0x5d4) & ~(0x3 << (lane*2))) | - (setting[4] << (2*lane)); + (setting->clk_delay << (2 * lane)); MCHBAR8(0x400*ch + 0x500 + lane*4) = (MCHBAR8(0x400*ch + 0x500 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x500 + lane*4) = (MCHBAR8(0x400*ch + 0x500 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x501 + lane*4) = (MCHBAR8(0x400*ch + 0x501 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x501 + lane*4) = (MCHBAR8(0x400*ch + 0x501 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x502 + lane*4) = (MCHBAR8(0x400*ch + 0x502 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x502 + lane*4) = (MCHBAR8(0x400*ch + 0x502 + lane*4) & ~0xf) | - setting[0]; + setting->tap; MCHBAR8(0x400*ch + 0x503 + lane*4) = (MCHBAR8(0x400*ch + 0x503 + lane*4) & ~0x70) | - (setting[1] << 4); + (setting->pi << 4); MCHBAR8(0x400*ch + 0x503 + lane*4) = (MCHBAR8(0x400*ch + 0x503 + lane*4) & ~0xf) | - setting[0]; + setting->tap; } static void timings_ddr2(struct sysinfo *s) @@ -803,7 +803,7 @@ static void dll_ddr2(struct sysinfo *s) MCHBAR8(0x1a4) = MCHBAR8(0x1a4) | 0x40; MCHBAR16(0x5f0) = (MCHBAR16(0x5f0) & ~0x400) | 0x400; - u8 dll_setting_667[23][5] = { + const struct dll_setting dll_setting_667[23] = { // tap pi db delay {13, 0, 1, 0, 0}, {4, 1, 0, 0, 0}, @@ -830,7 +830,7 @@ static void dll_ddr2(struct sysinfo *s) {5, 4, 0, 0, 1} }; - u8 dll_setting_800[23][5] = { + const struct dll_setting dll_setting_800[23] = { // tap pi db delay {11, 5, 1, 0, 0}, {0, 5, 1, 1, 0}, @@ -866,21 +866,21 @@ static void dll_ddr2(struct sysinfo *s) FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) { - clkset0(i, &dll_setting_667[CLKSET0][0]); - clkset1(i, &dll_setting_667[CLKSET1][0]); - ctrlset0(i, &dll_setting_667[CTRL0][0]); - ctrlset1(i, &dll_setting_667[CTRL1][0]); - ctrlset2(i, &dll_setting_667[CTRL2][0]); - ctrlset3(i, &dll_setting_667[CTRL3][0]); - cmdset(i, &dll_setting_667[CMD][0]); + clkset0(i, &dll_setting_667[CLKSET0]); + clkset1(i, &dll_setting_667[CLKSET1]); + ctrlset0(i, &dll_setting_667[CTRL0]); + ctrlset1(i, &dll_setting_667[CTRL1]); + ctrlset2(i, &dll_setting_667[CTRL2]); + ctrlset3(i, &dll_setting_667[CTRL3]); + cmdset(i, &dll_setting_667[CMD]); } else { - clkset0(i, &dll_setting_800[CLKSET0][0]); - clkset1(i, &dll_setting_800[CLKSET1][0]); - ctrlset0(i, &dll_setting_800[CTRL0][0]); - ctrlset1(i, &dll_setting_800[CTRL1][0]); - ctrlset2(i, &dll_setting_800[CTRL2][0]); - ctrlset3(i, &dll_setting_800[CTRL3][0]); - cmdset(i, &dll_setting_800[CMD][0]); + clkset0(i, &dll_setting_800[CLKSET0]); + clkset1(i, &dll_setting_800[CLKSET1]); + ctrlset0(i, &dll_setting_800[CTRL0]); + ctrlset1(i, &dll_setting_800[CTRL1]); + ctrlset2(i, &dll_setting_800[CTRL2]); + ctrlset3(i, &dll_setting_800[CTRL3]); + cmdset(i, &dll_setting_800[CMD]); } } @@ -998,14 +998,14 @@ static void dll_ddr2(struct sysinfo *s) FOR_EACH_POPULATED_CHANNEL(s->dimms, i) { if (s->selected_timings.mem_clk == MEM_CLOCK_667MHz) { for (lane = 0; lane < 8; lane++) - dqsset(i, lane, &dll_setting_667[DQS1+lane][0]); + dqsset(i, lane, &dll_setting_667[DQS1+lane]); for (lane = 0; lane < 8; lane++) - dqset(i, lane, &dll_setting_667[DQ1+lane][0]); + dqset(i, lane, &dll_setting_667[DQ1+lane]); } else { for (lane = 0; lane < 8; lane++) - dqsset(i, lane, &dll_setting_800[DQS1+lane][0]); + dqsset(i, lane, &dll_setting_800[DQS1+lane]); for (lane = 0; lane < 8; lane++) - dqset(i, lane, &dll_setting_800[DQ1+lane][0]); + dqset(i, lane, &dll_setting_800[DQ1+lane]); } } } diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h index 32d4b968e9..7d8f5cc442 100644 --- a/src/northbridge/intel/x4x/x4x.h +++ b/src/northbridge/intel/x4x/x4x.h @@ -240,6 +240,15 @@ enum chip_cap { /* as in DDR3 spd */ CHIP_CAP_16G = 6, }; +struct dll_setting { + u8 tap; + u8 pi; + u8 db_en; + u8 db_sel; + u8 clk_delay; + u8 coarse; +}; + struct timings { unsigned int CAS; enum fsb_clock fsb_clk; -- cgit v1.2.3