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-rw-r--r--resources/coreboot/haswell/patches/0017-haswell-NRI-Add-pre-training-steps.patch384
1 files changed, 0 insertions, 384 deletions
diff --git a/resources/coreboot/haswell/patches/0017-haswell-NRI-Add-pre-training-steps.patch b/resources/coreboot/haswell/patches/0017-haswell-NRI-Add-pre-training-steps.patch
deleted file mode 100644
index e4cea123..00000000
--- a/resources/coreboot/haswell/patches/0017-haswell-NRI-Add-pre-training-steps.patch
+++ /dev/null
@@ -1,384 +0,0 @@
-From 42e43eb210bbb172af8e5ad064326c4570be8654 Mon Sep 17 00:00:00 2001
-From: Angel Pons <th3fanbus@gmail.com>
-Date: Sat, 7 May 2022 23:12:18 +0200
-Subject: [PATCH 17/26] 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 <th3fanbus@gmail.com>
----
- .../intel/haswell/native_raminit/Makefile.inc | 1 +
- .../haswell/native_raminit/raminit_main.c | 34 ++++
- .../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, 272 insertions(+)
- create mode 100644 src/northbridge/intel/haswell/native_raminit/setup_wdb.c
-
-diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.inc b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
-index e9212df9e6..8d7d4e4db0 100644
---- a/src/northbridge/intel/haswell/native_raminit/Makefile.inc
-+++ b/src/northbridge/intel/haswell/native_raminit/Makefile.inc
-@@ -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 73ff180b8c..5e4674957d 100644
---- a/src/northbridge/intel/haswell/native_raminit/raminit_main.c
-+++ b/src/northbridge/intel/haswell/native_raminit/raminit_main.c
-@@ -13,6 +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;
-@@ -26,6 +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 e3cf4254a0..f29c2ec366 100644
---- a/src/northbridge/intel/haswell/native_raminit/raminit_native.h
-+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.h
-@@ -35,6 +35,13 @@
-
- #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 */
-@@ -318,6 +325,23 @@ 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 <northbridge/intel/haswell/haswell.h>
-+#include <types.h>
-+
-+#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
-
generated by cgit v1.2.1 (git 2.18.0) at 2024-06-26 18:40:54 +0000