diff options
Diffstat (limited to 'resources/coreboot/haswell/patches/0020-haswell-NRI-Add-library-to-change-margins.patch')
| -rw-r--r-- | resources/coreboot/haswell/patches/0020-haswell-NRI-Add-library-to-change-margins.patch | 294 |
1 files changed, 0 insertions, 294 deletions
diff --git a/resources/coreboot/haswell/patches/0020-haswell-NRI-Add-library-to-change-margins.patch b/resources/coreboot/haswell/patches/0020-haswell-NRI-Add-library-to-change-margins.patch deleted file mode 100644 index 30926494..00000000 --- a/resources/coreboot/haswell/patches/0020-haswell-NRI-Add-library-to-change-margins.patch +++ /dev/null @@ -1,294 +0,0 @@ -From 54cfbe4cf53d16f747bfcfadd20445a0f5f1e5db Mon Sep 17 00:00:00 2001 -From: Angel Pons <th3fanbus@gmail.com> -Date: Sun, 8 May 2022 01:11:03 +0200 -Subject: [PATCH 20/26] haswell NRI: Add library to change margins - -Implement a library to change Rx/Tx margins. It will be expanded later. - -Change-Id: I0b55aba428d8b4d4e16d2fbdec57235ce3ce8adf -Signed-off-by: Angel Pons <th3fanbus@gmail.com> ---- - .../intel/haswell/native_raminit/Makefile.inc | 1 + - .../haswell/native_raminit/change_margin.c | 154 ++++++++++++++++++ - .../haswell/native_raminit/raminit_native.h | 50 ++++++ - .../intel/haswell/registers/mchbar.h | 9 + - 4 files changed, 214 insertions(+) - create mode 100644 src/northbridge/intel/haswell/native_raminit/change_margin.c - -diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.inc b/src/northbridge/intel/haswell/native_raminit/Makefile.inc -index 2da950771d..ebe9e9b762 100644 ---- a/src/northbridge/intel/haswell/native_raminit/Makefile.inc -+++ b/src/northbridge/intel/haswell/native_raminit/Makefile.inc -@@ -1,5 +1,6 @@ - ## SPDX-License-Identifier: GPL-2.0-or-later - -+romstage-y += change_margin.c - romstage-y += configure_mc.c - romstage-y += ddr3.c - romstage-y += jedec_reset.c -diff --git a/src/northbridge/intel/haswell/native_raminit/change_margin.c b/src/northbridge/intel/haswell/native_raminit/change_margin.c -new file mode 100644 -index 0000000000..12da59580f ---- /dev/null -+++ b/src/northbridge/intel/haswell/native_raminit/change_margin.c -@@ -0,0 +1,154 @@ -+/* SPDX-License-Identifier: GPL-2.0-or-later */ -+ -+#include <commonlib/clamp.h> -+#include <console/console.h> -+#include <delay.h> -+#include <northbridge/intel/haswell/haswell.h> -+#include <timer.h> -+ -+#include "raminit_native.h" -+ -+void update_rxt( -+ struct sysinfo *ctrl, -+ const uint8_t channel, -+ const uint8_t rank, -+ const uint8_t byte, -+ const enum rxt_subfield subfield, -+ const int32_t value) -+{ -+ union ddr_data_rx_train_rank_reg rxt = { -+ .rcven = ctrl->rcven[channel][rank][byte], -+ .dqs_p = ctrl->rxdqsp[channel][rank][byte], -+ .rx_eq = ctrl->rx_eq[channel][rank][byte], -+ .dqs_n = ctrl->rxdqsn[channel][rank][byte], -+ .vref = ctrl->rxvref[channel][rank][byte], -+ }; -+ int32_t new_value; -+ switch (subfield) { -+ case RXT_RCVEN: -+ new_value = clamp_s32(0, value, 511); -+ rxt.rcven = new_value; -+ break; -+ case RXT_RXDQS_P: -+ new_value = clamp_s32(0, value, 63); -+ rxt.dqs_p = new_value; -+ break; -+ case RXT_RX_EQ: -+ new_value = clamp_s32(0, value, 31); -+ rxt.rx_eq = new_value; -+ break; -+ case RXT_RXDQS_N: -+ new_value = clamp_s32(0, value, 63); -+ rxt.dqs_n = new_value; -+ break; -+ case RXT_RX_VREF: -+ new_value = clamp_s32(-32, value, 31); -+ rxt.vref = new_value; -+ break; -+ case RXT_RXDQS_BOTH: -+ new_value = clamp_s32(0, value, 63); -+ rxt.dqs_p = new_value; -+ rxt.dqs_n = new_value; -+ break; -+ case RXT_RESTORE: -+ new_value = value; -+ break; -+ default: -+ die("%s: Unhandled subfield index %u\n", __func__, subfield); -+ } -+ -+ if (new_value != value) { -+ printk(BIOS_ERR, "%s: Overflow for subfield %u: %d ---> %d\n", -+ __func__, subfield, value, new_value); -+ } -+ mchbar_write32(RX_TRAIN_ch_r_b(channel, rank, byte), rxt.raw); -+ download_regfile(ctrl, channel, false, rank, REG_FILE_USE_RANK, byte, true, false); -+} -+ -+void update_txt( -+ struct sysinfo *ctrl, -+ const uint8_t channel, -+ const uint8_t rank, -+ const uint8_t byte, -+ const enum txt_subfield subfield, -+ const int32_t value) -+{ -+ union ddr_data_tx_train_rank_reg txt = { -+ .dq_delay = ctrl->tx_dq[channel][rank][byte], -+ .dqs_delay = ctrl->txdqs[channel][rank][byte], -+ .tx_eq = ctrl->tx_eq[channel][rank][byte], -+ }; -+ int32_t new_value; -+ switch (subfield) { -+ case TXT_TX_DQ: -+ new_value = clamp_s32(0, value, 511); -+ txt.dq_delay = new_value; -+ break; -+ case TXT_TXDQS: -+ new_value = clamp_s32(0, value, 511); -+ txt.dqs_delay = new_value; -+ break; -+ case TXT_TX_EQ: -+ new_value = clamp_s32(0, value, 63); -+ txt.tx_eq = new_value; -+ break; -+ case TXT_DQDQS_OFF: -+ new_value = value; -+ txt.dqs_delay += new_value; -+ txt.dq_delay += new_value; -+ break; -+ case TXT_RESTORE: -+ new_value = value; -+ break; -+ default: -+ die("%s: Unhandled subfield index %u\n", __func__, subfield); -+ } -+ if (new_value != value) { -+ printk(BIOS_ERR, "%s: Overflow for subfield %u: %d ---> %d\n", -+ __func__, subfield, value, new_value); -+ } -+ mchbar_write32(TX_TRAIN_ch_r_b(channel, rank, byte), txt.raw); -+ download_regfile(ctrl, channel, false, rank, REG_FILE_USE_RANK, byte, false, true); -+} -+ -+void download_regfile( -+ struct sysinfo *ctrl, -+ const uint8_t channel, -+ const bool multicast, -+ const uint8_t rank, -+ const enum regfile_mode regfile, -+ const uint8_t byte, -+ const bool read_rf_rd, -+ const bool read_rf_wr) -+{ -+ union reut_seq_base_addr_reg reut_seq_base_addr; -+ switch (regfile) { -+ case REG_FILE_USE_START: -+ reut_seq_base_addr.raw = mchbar_read64(REUT_ch_SEQ_ADDR_START(channel)); -+ break; -+ case REG_FILE_USE_CURRENT: -+ reut_seq_base_addr.raw = mchbar_read64(REUT_ch_SEQ_ADDR_CURRENT(channel)); -+ break; -+ case REG_FILE_USE_RANK: -+ reut_seq_base_addr.raw = 0; -+ if (rank >= NUM_SLOTRANKS) -+ die("%s: bad rank %u\n", __func__, rank); -+ break; -+ default: -+ die("%s: Invalid regfile param %u\n", __func__, regfile); -+ } -+ uint8_t phys_rank = rank; -+ if (reut_seq_base_addr.raw != 0) { -+ /* Map REUT logical rank to physical rank */ -+ const uint32_t log_to_phys = mchbar_read32(REUT_ch_RANK_LOG_TO_PHYS(channel)); -+ phys_rank = log_to_phys >> (reut_seq_base_addr.rank_addr * 4) & 0x3; -+ } -+ uint32_t reg = multicast ? DDR_DATA_ch_CONTROL_0(channel) : DQ_CONTROL_0(channel, byte); -+ union ddr_data_control_0_reg ddr_data_control_0 = { -+ .raw = mchbar_read32(reg), -+ }; -+ ddr_data_control_0.read_rf_rd = read_rf_rd; -+ ddr_data_control_0.read_rf_wr = read_rf_wr; -+ ddr_data_control_0.read_rf_rank = phys_rank; -+ mchbar_write32(reg, ddr_data_control_0.raw); -+} -diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.h b/src/northbridge/intel/haswell/native_raminit/raminit_native.h -index 56df36ca8d..7c1a786780 100644 ---- a/src/northbridge/intel/haswell/native_raminit/raminit_native.h -+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.h -@@ -117,6 +117,30 @@ enum test_stop { - ALSOE = 3, /* Stop on all lanes error */ - }; - -+enum rxt_subfield { -+ RXT_RCVEN = 0, -+ RXT_RXDQS_P = 1, -+ RXT_RX_EQ = 2, -+ RXT_RXDQS_N = 3, -+ RXT_RX_VREF = 4, -+ RXT_RXDQS_BOTH = 5, -+ RXT_RESTORE = 255, -+}; -+ -+enum txt_subfield { -+ TXT_TX_DQ = 0, -+ TXT_TXDQS = 1, -+ TXT_TX_EQ = 2, -+ TXT_DQDQS_OFF = 3, -+ TXT_RESTORE = 255, -+}; -+ -+enum regfile_mode { -+ REG_FILE_USE_RANK, /* Used when changing parameters for each rank */ -+ REG_FILE_USE_START, /* Used when changing parameters before the test */ -+ REG_FILE_USE_CURRENT, /* Used when changing parameters after the test */ -+}; -+ - struct wdb_pat { - uint32_t start_ptr; /* Starting pointer in WDB */ - uint32_t stop_ptr; /* Stopping pointer in WDB */ -@@ -452,6 +476,32 @@ uint8_t select_reut_ranks(struct sysinfo *ctrl, uint8_t channel, uint8_t rankmas - void run_mpr_io_test(bool clear_errors); - uint8_t run_io_test(struct sysinfo *ctrl, uint8_t chanmask, uint8_t dq_pat, bool clear_errors); - -+void update_rxt( -+ struct sysinfo *ctrl, -+ uint8_t channel, -+ uint8_t rank, -+ uint8_t byte, -+ enum rxt_subfield subfield, -+ int32_t value); -+ -+void update_txt( -+ struct sysinfo *ctrl, -+ uint8_t channel, -+ uint8_t rank, -+ uint8_t byte, -+ enum txt_subfield subfield, -+ int32_t value); -+ -+void download_regfile( -+ struct sysinfo *ctrl, -+ uint8_t channel, -+ bool multicast, -+ uint8_t rank, -+ enum regfile_mode regfile, -+ uint8_t byte, -+ bool read_rf_rd, -+ bool read_rf_wr); -+ - 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/registers/mchbar.h b/src/northbridge/intel/haswell/registers/mchbar.h -index 817a9f8bf8..a81559bb1e 100644 ---- a/src/northbridge/intel/haswell/registers/mchbar.h -+++ b/src/northbridge/intel/haswell/registers/mchbar.h -@@ -15,7 +15,11 @@ - /* Register definitions */ - - /* DDR DATA per-channel per-bytelane */ -+#define RX_TRAIN_ch_r_b(ch, rank, byte) _DDRIO_C_R_B(0x0000, ch, rank, byte) -+#define TX_TRAIN_ch_r_b(ch, rank, byte) _DDRIO_C_R_B(0x0020, ch, rank, byte) -+ - #define DQ_CONTROL_2(ch, byte) _DDRIO_C_R_B(0x0064, ch, 0, byte) -+#define DQ_CONTROL_0(ch, byte) _DDRIO_C_R_B(0x0074, ch, 0, byte) - - /* DDR CKE per-channel */ - #define DDR_CKE_ch_CMD_COMP_OFFSET(ch) _DDRIO_C_R_B(0x1204, ch, 0, 0) -@@ -38,6 +42,9 @@ - #define DDR_SCRAMBLE_ch(ch) (0x2000 + 4 * (ch)) - #define DDR_SCRAM_MISC_CONTROL 0x2008 - -+/* DDR DATA per-channel multicast */ -+#define DDR_DATA_ch_CONTROL_0(ch) _DDRIO_C_R_B(0x3074, ch, 0, 0) -+ - /* DDR CMDN/CMDS per-channel (writes go to both CMDN and CMDS fubs) */ - #define DDR_CMD_ch_COMP_OFFSET(ch) _DDRIO_C_R_B(0x3204, ch, 0, 0) - #define DDR_CMD_ch_PI_CODING(ch) _DDRIO_C_R_B(0x3208, ch, 0, 0) -@@ -147,6 +154,8 @@ - - #define REUT_ch_SEQ_ADDR_WRAP(ch) (0x48e8 + 8 * (ch)) - -+#define REUT_ch_SEQ_ADDR_CURRENT(ch) (0x48f8 + 8 * (ch)) -+ - #define REUT_ch_SEQ_MISC_CTL(ch) (0x4908 + 4 * (ch)) - - #define REUT_ch_SEQ_ADDR_INC_CTL(ch) (0x4910 + 8 * (ch)) --- -2.39.2 - |