From 877f5d6aeb6a1a62f09c95cc214c874d057310d6 Mon Sep 17 00:00:00 2001 From: Leah Rowe Date: Sat, 10 Aug 2024 14:43:19 +0100 Subject: coreboot/default: merge coreboot/haswell Signed-off-by: Leah Rowe --- .../0049-haswell-NRI-Add-pre-training-steps.patch | 392 +++++++++++++++++++++ 1 file changed, 392 insertions(+) create mode 100644 config/coreboot/default/patches/0049-haswell-NRI-Add-pre-training-steps.patch (limited to 'config/coreboot/default/patches/0049-haswell-NRI-Add-pre-training-steps.patch') diff --git a/config/coreboot/default/patches/0049-haswell-NRI-Add-pre-training-steps.patch b/config/coreboot/default/patches/0049-haswell-NRI-Add-pre-training-steps.patch new file mode 100644 index 00000000..c6beea66 --- /dev/null +++ b/config/coreboot/default/patches/0049-haswell-NRI-Add-pre-training-steps.patch @@ -0,0 +1,392 @@ +From 19890277e3a0d411b016efbe1b54e511d4f36c0d Mon Sep 17 00:00:00 2001 +From: Angel Pons +Date: Sat, 7 May 2022 23:12:18 +0200 +Subject: [PATCH 07/17] haswell NRI: Add pre-training steps + +Implement pre-training steps, which consist of enabling ECC I/O and +filling the WDB (Write Data Buffer, stores test patterns) through a +magic LDAT port. + +Change-Id: Ie2e09e3b218c4569ed8de5c5e1b05d491032e0f1 +Signed-off-by: Angel Pons +--- + .../intel/haswell/native_raminit/Makefile.mk | 1 + + .../haswell/native_raminit/raminit_main.c | 35 ++++ + .../haswell/native_raminit/raminit_native.h | 24 +++ + .../haswell/native_raminit/reg_structs.h | 45 +++++ + .../intel/haswell/native_raminit/setup_wdb.c | 159 ++++++++++++++++++ + .../intel/haswell/registers/mchbar.h | 9 + + 6 files changed, 273 insertions(+) + create mode 100644 src/northbridge/intel/haswell/native_raminit/setup_wdb.c + +diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.mk b/src/northbridge/intel/haswell/native_raminit/Makefile.mk +index e9212df9e6..8d7d4e4db0 100644 +--- a/src/northbridge/intel/haswell/native_raminit/Makefile.mk ++++ b/src/northbridge/intel/haswell/native_raminit/Makefile.mk +@@ -10,5 +10,6 @@ romstage-y += memory_map.c + romstage-y += raminit_main.c + romstage-y += raminit_native.c + romstage-y += reut.c ++romstage-y += setup_wdb.c + romstage-y += spd_bitmunching.c + romstage-y += timings_refresh.c +diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_main.c b/src/northbridge/intel/haswell/native_raminit/raminit_main.c +index 94b268468c..5e4674957d 100644 +--- a/src/northbridge/intel/haswell/native_raminit/raminit_main.c ++++ b/src/northbridge/intel/haswell/native_raminit/raminit_main.c +@@ -3,6 +3,7 @@ + #include + #include + #include ++#include + #include + #include + #include +@@ -12,6 +13,39 @@ + + #include "raminit_native.h" + ++static enum raminit_status pre_training(struct sysinfo *ctrl) ++{ ++ /* Skip on S3 resume */ ++ if (ctrl->bootmode == BOOTMODE_S3) ++ return RAMINIT_STATUS_SUCCESS; ++ ++ for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) { ++ for (uint8_t slot = 0; slot < NUM_SLOTS; slot++) { ++ if (!rank_in_ch(ctrl, slot + slot, channel)) ++ continue; ++ ++ printk(RAM_DEBUG, "C%uS%u:\n", channel, slot); ++ printk(RAM_DEBUG, "\tMR0: 0x%04x\n", ctrl->mr0[channel][slot]); ++ printk(RAM_DEBUG, "\tMR1: 0x%04x\n", ctrl->mr1[channel][slot]); ++ printk(RAM_DEBUG, "\tMR2: 0x%04x\n", ctrl->mr2[channel][slot]); ++ printk(RAM_DEBUG, "\tMR3: 0x%04x\n", ctrl->mr3[channel][slot]); ++ printk(RAM_DEBUG, "\n"); ++ } ++ if (ctrl->is_ecc) { ++ union mad_dimm_reg mad_dimm = { ++ .raw = mchbar_read32(MAD_DIMM(channel)), ++ }; ++ /* Enable ECC I/O */ ++ mad_dimm.ecc_mode = 1; ++ mchbar_write32(MAD_DIMM(channel), mad_dimm.raw); ++ /* Wait 4 usec after enabling the ECC I/O, needed by HW */ ++ udelay(4); ++ } ++ } ++ setup_wdb(ctrl); ++ return RAMINIT_STATUS_SUCCESS; ++} ++ + struct task_entry { + enum raminit_status (*task)(struct sysinfo *); + bool is_enabled; +@@ -25,6 +59,7 @@ static const struct task_entry cold_boot[] = { + { configure_mc, true, "CONFMC", }, + { configure_memory_map, true, "MEMMAP", }, + { do_jedec_init, true, "JEDECINIT", }, ++ { pre_training, true, "PRETRAIN", }, + }; + + /* Return a generic stepping value to make stepping checks simpler */ +diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.h b/src/northbridge/intel/haswell/native_raminit/raminit_native.h +index 759d755d6d..4d9487d79c 100644 +--- a/src/northbridge/intel/haswell/native_raminit/raminit_native.h ++++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.h +@@ -36,6 +36,13 @@ + + #define RTTNOM_MASK (BIT(9) | BIT(6) | BIT(2)) + ++#define BASIC_VA_PAT_SPREAD_8 0x01010101 ++ ++#define WDB_CACHE_LINE_SIZE 8 ++ ++#define NUM_WDB_CL_MUX_SEEDS 3 ++#define NUM_CADB_MUX_SEEDS 3 ++ + /* ZQ calibration types */ + enum { + ZQ_INIT, /* DDR3: ZQCL with tZQinit, LPDDR3: ZQ Init with tZQinit */ +@@ -317,6 +324,23 @@ void reut_issue_mrs_all( + + enum raminit_status reut_issue_zq(struct sysinfo *ctrl, uint8_t chanmask, uint8_t zq_type); + ++void write_wdb_fixed_pat( ++ const struct sysinfo *ctrl, ++ const uint8_t patterns[], ++ const uint8_t pat_mask[], ++ uint8_t spread, ++ uint16_t start); ++ ++void write_wdb_va_pat( ++ const struct sysinfo *ctrl, ++ uint32_t agg_mask, ++ uint32_t vic_mask, ++ uint8_t vic_rot, ++ uint16_t start); ++ ++void program_wdb_lfsr(const struct sysinfo *ctrl, bool cleanup); ++void setup_wdb(const struct sysinfo *ctrl); ++ + uint8_t get_rx_bias(const struct sysinfo *ctrl); + + uint8_t get_tCWL(uint32_t mem_clock_mhz); +diff --git a/src/northbridge/intel/haswell/native_raminit/reg_structs.h b/src/northbridge/intel/haswell/native_raminit/reg_structs.h +index 9929f617fe..7aa8d8c8b2 100644 +--- a/src/northbridge/intel/haswell/native_raminit/reg_structs.h ++++ b/src/northbridge/intel/haswell/native_raminit/reg_structs.h +@@ -335,6 +335,18 @@ union mcscheds_cbit_reg { + uint32_t raw; + }; + ++union reut_pat_cl_mux_lmn_reg { ++ struct __packed { ++ uint32_t l_data_select : 1; // Bits 0:0 ++ uint32_t en_sweep_freq : 1; // Bits 1:1 ++ uint32_t : 6; // Bits 7:2 ++ uint32_t l_counter : 8; // Bits 15:8 ++ uint32_t m_counter : 8; // Bits 23:16 ++ uint32_t n_counter : 8; // Bits 31:24 ++ }; ++ uint32_t raw; ++}; ++ + union reut_pat_cadb_prog_reg { + struct __packed { + uint32_t addr : 16; // Bits 15:0 +@@ -439,6 +451,39 @@ union reut_misc_odt_ctrl_reg { + uint32_t raw; + }; + ++union ldat_pdat_reg { ++ struct __packed { ++ uint32_t fast_addr : 12; // Bits 11:0 ++ uint32_t : 4; // Bits 15:12 ++ uint32_t addr_en : 1; // Bits 16:16 ++ uint32_t seq_en : 1; // Bits 17:17 ++ uint32_t pol_0 : 1; // Bits 18:18 ++ uint32_t pol_1 : 1; // Bits 19:19 ++ uint32_t cmd_a : 4; // Bits 23:20 ++ uint32_t cmd_b : 4; // Bits 27:24 ++ uint32_t cmd_c : 4; // Bits 31:28 ++ }; ++ uint32_t raw; ++}; ++ ++union ldat_sdat_reg { ++ struct __packed { ++ uint32_t bank_sel : 4; // Bits 3:0 ++ uint32_t : 1; // Bits 4:4 ++ uint32_t array_sel : 5; // Bits 9:5 ++ uint32_t cmp : 1; // Bits 10:10 ++ uint32_t replicate : 1; // Bits 11:11 ++ uint32_t dword : 4; // Bits 15:12 ++ uint32_t mode : 2; // Bits 17:16 ++ uint32_t mpmap : 6; // Bits 23:18 ++ uint32_t mpb_offset : 4; // Bits 27:24 ++ uint32_t stage_en : 1; // Bits 28:28 ++ uint32_t shadow : 2; // Bits 30:29 ++ uint32_t : 1; // Bits 31:31 ++ }; ++ uint32_t raw; ++}; ++ + union mcscheds_dft_misc_reg { + struct __packed { + uint32_t wdar : 1; // Bits 0:0 +diff --git a/src/northbridge/intel/haswell/native_raminit/setup_wdb.c b/src/northbridge/intel/haswell/native_raminit/setup_wdb.c +new file mode 100644 +index 0000000000..ec37c48415 +--- /dev/null ++++ b/src/northbridge/intel/haswell/native_raminit/setup_wdb.c +@@ -0,0 +1,159 @@ ++/* SPDX-License-Identifier: GPL-2.0-or-later */ ++ ++#include ++#include ++ ++#include "raminit_native.h" ++ ++static void ldat_write_cacheline( ++ const struct sysinfo *const ctrl, ++ const uint8_t chunk, ++ const uint16_t start, ++ const uint64_t data) ++{ ++ for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) { ++ if (!does_ch_exist(ctrl, channel)) ++ continue; ++ ++ /* ++ * Do not do a 64-bit write here. The register is not aligned ++ * to a 64-bit boundary, which could potentially cause issues. ++ */ ++ mchbar_write32(QCLK_ch_LDAT_DATA_IN_x(channel, 0), data & UINT32_MAX); ++ mchbar_write32(QCLK_ch_LDAT_DATA_IN_x(channel, 1), data >> 32); ++ /* ++ * Set REPLICATE = 0 as you don't want to replicate the data. ++ * Set BANK_SEL to the chunk you want to write the 64 bits to. ++ * Set ARRAY_SEL = 0 (the MC WDB) and MODE = 1. ++ */ ++ const union ldat_sdat_reg ldat_sdat = { ++ .bank_sel = chunk, ++ .mode = 1, ++ }; ++ mchbar_write32(QCLK_ch_LDAT_SDAT(channel), ldat_sdat.raw); ++ /* ++ * Finally, write the PDAT register indicating which cacheline ++ * of the WDB you want to write to by setting FAST_ADDR field ++ * to one of the 64 cache lines. Also set CMD_B in the PDAT ++ * register to 4'b1000, indicating that this is a LDAT write. ++ */ ++ const union ldat_pdat_reg ldat_pdat = { ++ .fast_addr = MIN(start, 0xfff), ++ .cmd_b = 8, ++ }; ++ mchbar_write32(QCLK_ch_LDAT_PDAT(channel), ldat_pdat.raw); ++ } ++} ++ ++static void clear_ldat_mode(const struct sysinfo *const ctrl) ++{ ++ for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) ++ mchbar_write32(QCLK_ch_LDAT_SDAT(channel), 0); ++} ++ ++void write_wdb_fixed_pat( ++ const struct sysinfo *const ctrl, ++ const uint8_t patterns[], ++ const uint8_t pat_mask[], ++ const uint8_t spread, ++ const uint16_t start) ++{ ++ for (uint8_t chunk = 0; chunk < WDB_CACHE_LINE_SIZE; chunk++) { ++ uint64_t data = 0; ++ for (uint8_t b = 0; b < 64; b++) { ++ const uint8_t beff = b % spread; ++ const uint8_t burst = patterns[pat_mask[beff]]; ++ if (burst & BIT(chunk)) ++ data |= 1ULL << b; ++ } ++ ldat_write_cacheline(ctrl, chunk, start, data); ++ } ++ clear_ldat_mode(ctrl); ++} ++ ++static inline uint32_t rol_u32(const uint32_t val) ++{ ++ return (val << 1) | ((val >> 31) & 1); ++} ++ ++void write_wdb_va_pat( ++ const struct sysinfo *const ctrl, ++ const uint32_t agg_mask, ++ const uint32_t vic_mask, ++ const uint8_t vic_rot, ++ const uint16_t start) ++{ ++ static const uint8_t va_mask_to_compressed[4] = {0xaa, 0xc0, 0xcc, 0xf0}; ++ uint32_t v_mask = vic_mask; ++ uint32_t a_mask = agg_mask; ++ for (uint8_t v = 0; v < vic_rot; v++) { ++ uint8_t compressed[32] = {0}; ++ /* Iterate through all 32 bits and create a compressed version of cacheline */ ++ for (uint8_t b = 0; b < ARRAY_SIZE(compressed); b++) { ++ const uint8_t vic = !!(v_mask & BIT(b)); ++ const uint8_t agg = !!(a_mask & BIT(b)); ++ const uint8_t index = !vic << 1 | agg << 0; ++ compressed[b] = va_mask_to_compressed[index]; ++ } ++ for (uint8_t chunk = 0; chunk < WDB_CACHE_LINE_SIZE; chunk++) { ++ uint32_t data = 0; ++ for (uint8_t b = 0; b < ARRAY_SIZE(compressed); b++) ++ data |= !!(compressed[b] & BIT(chunk)) << b; ++ ++ const uint64_t data64 = (uint64_t)data << 32 | data; ++ ldat_write_cacheline(ctrl, chunk, start + v, data64); ++ } ++ v_mask = rol_u32(v_mask); ++ a_mask = rol_u32(a_mask); ++ } ++ clear_ldat_mode(ctrl); ++} ++ ++void program_wdb_lfsr(const struct sysinfo *ctrl, const bool cleanup) ++{ ++ /* Cleanup LFSR seeds are sequential */ ++ const uint32_t cleanup_seeds[NUM_WDB_CL_MUX_SEEDS] = { 0xaaaaaa, 0xcccccc, 0xf0f0f0 }; ++ const uint32_t regular_seeds[NUM_WDB_CL_MUX_SEEDS] = { 0xa10ca1, 0xef0d08, 0xad0a1e }; ++ const uint32_t *seeds = cleanup ? cleanup_seeds : regular_seeds; ++ ++ for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) { ++ if (!does_ch_exist(ctrl, channel)) ++ continue; ++ ++ for (uint8_t i = 0; i < NUM_WDB_CL_MUX_SEEDS; i++) { ++ mchbar_write32(REUT_ch_PAT_WDB_CL_MUX_RD_x(channel, i), seeds[i]); ++ mchbar_write32(REUT_ch_PAT_WDB_CL_MUX_WR_x(channel, i), seeds[i]); ++ } ++ } ++} ++ ++void setup_wdb(const struct sysinfo *ctrl) ++{ ++ const uint32_t amask[9] = { ++ 0x86186186, 0x18618618, 0x30c30c30, ++ 0xa28a28a2, 0x8a28a28a, 0x14514514, ++ 0x28a28a28, 0x92492492, 0x24924924, ++ }; ++ const uint32_t vmask = 0x41041041; ++ ++ /* Fill first 8 entries with simple 2-LFSR VA pattern */ ++ write_wdb_va_pat(ctrl, 0, BASIC_VA_PAT_SPREAD_8, 8, 0); ++ ++ /* Fill next 54 entries with 3-LFSR VA pattern */ ++ for (uint8_t a = 0; a < ARRAY_SIZE(amask); a++) ++ write_wdb_va_pat(ctrl, amask[a], vmask, 6, 8 + a * 6); ++ ++ program_wdb_lfsr(ctrl, false); ++ for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) { ++ if (!does_ch_exist(ctrl, channel)) ++ continue; ++ ++ const union reut_pat_cl_mux_lmn_reg wdb_cl_mux_lmn = { ++ .en_sweep_freq = 1, ++ .l_counter = 1, ++ .m_counter = 1, ++ .n_counter = 10, ++ }; ++ mchbar_write32(REUT_ch_PAT_WDB_CL_MUX_LMN(channel), wdb_cl_mux_lmn.raw); ++ } ++} +diff --git a/src/northbridge/intel/haswell/registers/mchbar.h b/src/northbridge/intel/haswell/registers/mchbar.h +index 4fc78a7f43..f8408e51a0 100644 +--- a/src/northbridge/intel/haswell/registers/mchbar.h ++++ b/src/northbridge/intel/haswell/registers/mchbar.h +@@ -94,6 +94,11 @@ + #define TC_BANK_RANK_D_ch(ch) _MCMAIN_C(0x4014, ch) + #define SC_ROUNDT_LAT_ch(ch) _MCMAIN_C(0x4024, ch) + ++#define REUT_ch_PAT_WDB_CL_MUX_WR_x(ch, x) _MCMAIN_C_X(0x4048, ch, x) /* x in 0 .. 2 */ ++#define REUT_ch_PAT_WDB_CL_MUX_RD_x(ch, x) _MCMAIN_C_X(0x4054, ch, x) /* x in 0 .. 2 */ ++ ++#define REUT_ch_PAT_WDB_CL_MUX_LMN(ch) _MCMAIN_C(0x4078, ch) ++ + #define SC_WR_ADD_DELAY_ch(ch) _MCMAIN_C(0x40d0, ch) + + #define REUT_ch_MISC_CKE_CTRL(ch) _MCMAIN_C(0x4190, ch) +@@ -110,6 +115,10 @@ + #define MC_INIT_STATE_ch(ch) _MCMAIN_C(0x42a0, ch) + #define TC_SRFTP_ch(ch) _MCMAIN_C(0x42a4, ch) + ++#define QCLK_ch_LDAT_PDAT(ch) _MCMAIN_C(0x42d0, ch) ++#define QCLK_ch_LDAT_SDAT(ch) _MCMAIN_C(0x42d4, ch) ++#define QCLK_ch_LDAT_DATA_IN_x(ch, x) _MCMAIN_C_X(0x42dc, ch, x) /* x in 0 .. 1 */ ++ + #define REUT_GLOBAL_ERR 0x4804 + + #define REUT_ch_SEQ_CFG(ch) (0x48a8 + 8 * (ch)) +-- +2.39.2 + -- cgit v1.2.1