path: root/config/coreboot/default/patches/0057-haswell-NRI-Add-final-raminit-steps.patch

From e30c9c431ef11d87c6f46071ec43cc34391b8349 Mon Sep 17 00:00:00 2001
From: Angel Pons <th3fanbus@gmail.com>
Date: Sun, 8 May 2022 14:29:05 +0200
Subject: [PATCH 15/17] haswell NRI: Add final raminit steps

Implement the remaining raminit steps. Although many training steps are
missing, this is enough to boot on the Asrock B85M Pro4.

Change-Id: I94f3b65f0218d4da4fda4d84592dfd91f77f8f21
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
---
 src/northbridge/intel/haswell/Kconfig         |   4 +-
 .../intel/haswell/native_raminit/Makefile.mk  |   1 +
 .../haswell/native_raminit/activate_mc.c      | 388 ++++++++++++++++++
 .../haswell/native_raminit/raminit_main.c     |   5 +-
 .../haswell/native_raminit/raminit_native.c   |   5 +-
 .../haswell/native_raminit/raminit_native.h   |   2 +
 .../haswell/native_raminit/reg_structs.h      |  12 +
 .../intel/haswell/registers/mchbar.h          |   7 +
 8 files changed, 416 insertions(+), 8 deletions(-)
 create mode 100644 src/northbridge/intel/haswell/native_raminit/activate_mc.c

diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig
index 4b83a25bc1..c6ab27184e 100644
--- a/src/northbridge/intel/haswell/Kconfig
+++ b/src/northbridge/intel/haswell/Kconfig
@@ -11,12 +11,12 @@ config NORTHBRIDGE_INTEL_HASWELL
 if NORTHBRIDGE_INTEL_HASWELL
 
 config USE_NATIVE_RAMINIT
-	bool "[NOT WORKING] Use native raminit"
+	bool "[NOT COMPLETE] Use native raminit"
 	default n
 	select HAVE_DEBUG_RAM_SETUP
 	help
 	  Select if you want to use coreboot implementation of raminit rather than
-	  MRC.bin. Currently incomplete and does not boot.
+	  MRC.bin. Currently incomplete and does not support S3 resume.
 
 config HASWELL_VBOOT_IN_BOOTBLOCK
 	depends on VBOOT
diff --git a/src/northbridge/intel/haswell/native_raminit/Makefile.mk b/src/northbridge/intel/haswell/native_raminit/Makefile.mk
index 40c2f5e014..d97da72890 100644
--- a/src/northbridge/intel/haswell/native_raminit/Makefile.mk
+++ b/src/northbridge/intel/haswell/native_raminit/Makefile.mk
@@ -1,5 +1,6 @@
 ## SPDX-License-Identifier: GPL-2.0-or-later
 
+romstage-y += activate_mc.c
 romstage-y += change_margin.c
 romstage-y += configure_mc.c
 romstage-y += ddr3.c
diff --git a/src/northbridge/intel/haswell/native_raminit/activate_mc.c b/src/northbridge/intel/haswell/native_raminit/activate_mc.c
new file mode 100644
index 0000000000..78a7ad27ef
--- /dev/null
+++ b/src/northbridge/intel/haswell/native_raminit/activate_mc.c
@@ -0,0 +1,388 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <console/console.h>
+#include <delay.h>
+#include <device/pci_ops.h>
+#include <northbridge/intel/haswell/haswell.h>
+#include <timer.h>
+#include <types.h>
+
+#include "raminit_native.h"
+
+static void update_internal_clocks_on(struct sysinfo *ctrl)
+{
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		if (!does_ch_exist(ctrl, channel))
+			continue;
+
+		bool clocks_on = false;
+		for (uint8_t byte = 0; byte < ctrl->lanes; byte++) {
+			const union ddr_data_control_1_reg data_control_1 = {
+				.raw = ctrl->dq_control_1[channel][byte],
+			};
+			const int8_t o_on = data_control_1.odt_delay;
+			const int8_t s_on = data_control_1.sense_amp_delay;
+			const int8_t o_off = data_control_1.odt_duration;
+			const int8_t s_off = data_control_1.sense_amp_duration;
+			if (o_on + o_off >= 7 || s_on + s_off >= 7) {
+				clocks_on = true;
+				break;
+			}
+		}
+		union ddr_data_control_0_reg data_control_0 = {
+			.raw = ctrl->dq_control_0[channel],
+		};
+		data_control_0.internal_clocks_on = clocks_on;
+		ctrl->dq_control_0[channel] = data_control_0.raw;
+		mchbar_write32(DDR_DATA_ch_CONTROL_0(channel), data_control_0.raw);
+	}
+}
+
+/* Switch off unused segments of the SDLL to save power */
+static void update_sdll_length(struct sysinfo *ctrl)
+{
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		if (!does_ch_exist(ctrl, channel))
+			continue;
+
+		for (uint8_t byte = 0; byte < ctrl->lanes; byte++) {
+			uint8_t max_pi = 0;
+			for (uint8_t rank = 0; rank < NUM_SLOTRANKS; rank++) {
+				if (!rank_in_ch(ctrl, rank, channel))
+					continue;
+
+				const uint8_t rx_dqs_p = ctrl->rxdqsp[channel][rank][byte];
+				const uint8_t rx_dqs_n = ctrl->rxdqsn[channel][rank][byte];
+				max_pi = MAX(max_pi, MAX(rx_dqs_p, rx_dqs_n));
+			}
+			/* Update SDLL length for power savings */
+			union ddr_data_control_1_reg data_control_1 = {
+				.raw = ctrl->dq_control_1[channel][byte],
+			};
+			/* Calculate which segments to turn off */
+			data_control_1.sdll_segment_disable = (7 - (max_pi >> 3)) & ~1;
+			ctrl->dq_control_1[channel][byte] = data_control_1.raw;
+			mchbar_write32(DQ_CONTROL_1(channel, byte), data_control_1.raw);
+		}
+	}
+}
+
+static void set_rx_clk_stg_num(struct sysinfo *ctrl, const uint8_t channel)
+{
+	const uint8_t rcven_drift = ctrl->lpddr ? DIV_ROUND_UP(tDQSCK_DRIFT, ctrl->qclkps) : 1;
+	uint8_t max_rcven = 0;
+	for (uint8_t rank = 0; rank < NUM_SLOTRANKS; rank++) {
+		if (!rank_in_ch(ctrl, rank, channel))
+			continue;
+
+		for (uint8_t byte = 0; byte < ctrl->lanes; byte++)
+			max_rcven = MAX(max_rcven, ctrl->rcven[channel][rank][byte] / 64);
+	}
+	const union ddr_data_control_1_reg ddr_data_control_1 = {
+		.raw = ctrl->dq_control_1[channel][0],
+	};
+	const bool lpddr_long_odt = ddr_data_control_1.lpddr_long_odt_en;
+	const uint8_t rcven_turnoff = max_rcven + 18 + 2 * rcven_drift + lpddr_long_odt;
+	const union ddr_data_control_0_reg ddr_data_control_0 = {
+		.raw = ctrl->dq_control_0[channel],
+	};
+	for (uint8_t byte = 0; byte < ctrl->lanes; byte++) {
+		union ddr_data_control_2_reg ddr_data_control_2 = {
+			.raw = ctrl->dq_control_2[channel][byte],
+		};
+		if (ddr_data_control_0.odt_samp_extend_en) {
+			if (ddr_data_control_2.rx_clk_stg_num < rcven_turnoff)
+				ddr_data_control_2.rx_clk_stg_num = rcven_turnoff;
+		} else {
+			const int8_t o_on = ddr_data_control_1.odt_delay;
+			const int8_t o_off = ddr_data_control_1.odt_duration;
+			ddr_data_control_2.rx_clk_stg_num = MAX(17, o_on + o_off + 14);
+		}
+		ctrl->dq_control_2[channel][byte] = ddr_data_control_2.raw;
+		mchbar_write32(DQ_CONTROL_2(channel, byte), ddr_data_control_2.raw);
+	}
+}
+
+#define SELF_REFRESH_IDLE_COUNT 0x200
+
+static void enter_sr(void)
+{
+	mchbar_write32(PM_SREF_CONFIG, SELF_REFRESH_IDLE_COUNT | BIT(16));
+	udelay(1);
+}
+
+enum power_down_mode {
+	PDM_NO_PD	= 0,
+	PDM_APD		= 1,
+	PDM_PPD		= 2,
+	PDM_PPD_DLL_OFF	= 6,
+};
+
+static void power_down_config(struct sysinfo *ctrl)
+{
+	const enum power_down_mode pd_mode = ctrl->lpddr ? PDM_PPD : PDM_PPD_DLL_OFF;
+	mchbar_write32(PM_PDWN_CONFIG, pd_mode << 12 | 0x40);
+}
+
+static void train_power_modes_post(struct sysinfo *ctrl)
+{
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		if (!does_ch_exist(ctrl, channel))
+			continue;
+
+		/* Adjust tCPDED and tPRPDEN */
+		if (ctrl->mem_clock_mhz >= 933)
+			ctrl->tc_bankrank_d[channel].tCPDED = 2;
+
+		if (ctrl->mem_clock_mhz >= 1066)
+			ctrl->tc_bankrank_d[channel].tPRPDEN = 2;
+
+		mchbar_write32(TC_BANK_RANK_D_ch(channel), ctrl->tc_bankrank_d[channel].raw);
+	}
+	power_down_config(ctrl);
+	mchbar_write32(MCDECS_CBIT, BIT(30));	/* dis_msg_clk_gate */
+}
+
+static uint8_t compute_burst_end_odt_delay(const struct sysinfo *const ctrl)
+{
+	/* Must be disabled for LPDDR */
+	if (ctrl->lpddr)
+		return 0;
+
+	const uint8_t beod = MIN(7, DIV_ROUND_CLOSEST(14300 * 20 / 100, ctrl->qclkps));
+	if (beod < 3)
+		return 0;
+
+	if (beod < 4)
+		return 4;
+
+	return beod;
+}
+
+static void program_burst_end_odt_delay(struct sysinfo *ctrl)
+{
+	/* Program burst_end_odt_delay - it should be zero during training steps */
+	const uint8_t beod = compute_burst_end_odt_delay(ctrl);
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		if (!does_ch_exist(ctrl, channel))
+			continue;
+
+		for (uint8_t byte = 0; byte < ctrl->lanes; byte++) {
+			union ddr_data_control_1_reg ddr_data_control_1 = {
+				.raw = ctrl->dq_control_1[channel][byte],
+			};
+			ddr_data_control_1.burst_end_odt_delay = beod;
+			ctrl->dq_control_1[channel][byte] = ddr_data_control_1.raw;
+			mchbar_write32(DQ_CONTROL_1(channel, byte), ddr_data_control_1.raw);
+		}
+	}
+}
+
+/*
+ * Return a random value to use for scrambler seeds. Try to use RDRAND
+ * first and fall back to hardcoded values if RDRAND does not succeed.
+ */
+static uint16_t get_random_number(const uint8_t channel)
+{
+	/* The RDRAND instruction is only available 100k cycles after reset */
+	for (size_t i = 0; i < 100000; i++) {
+		uint32_t status;
+		uint32_t random;
+		/** TODO: Clean up asm **/
+		__asm__ __volatile__(
+			"\n\t .byte 0x0F, 0xC7, 0xF0"
+			"\n\t movl %%eax, %0"
+			"\n\t pushf"
+			"\n\t pop %%eax"
+			"\n\t movl %%eax, %1"
+			: "=m"(random),
+			  "=m"(status)
+			: /* No inputs */
+			: "eax", "cc");
+
+		/* Only consider non-zero random values as valid */
+		if (status & 1 && random)
+			return random;
+	}
+
+	/* https://xkcd.com/221 */
+	if (channel)
+		return 0x28f4;
+	else
+		return 0x893e;
+}
+
+/* Work around "error: 'typeof' applied to a bit-field" */
+static inline uint32_t max(const uint32_t a, const uint32_t b)
+{
+	return MAX(a, b);
+}
+
+enum raminit_status activate_mc(struct sysinfo *ctrl)
+{
+	const bool enable_scrambling = true;
+	const bool enable_cmd_tristate = true;
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		if (!does_ch_exist(ctrl, channel))
+			continue;
+
+		if (enable_scrambling && ctrl->stepping < STEPPING_C0) {
+			/* Make sure tRDRD_(sr, dr, dd) are at least 6 for scrambler W/A */
+			union tc_bank_rank_a_reg tc_bank_rank_a = {
+				.raw = mchbar_read32(TC_BANK_RANK_A_ch(channel)),
+			};
+			tc_bank_rank_a.tRDRD_sr = max(tc_bank_rank_a.tRDRD_sr, 6);
+			tc_bank_rank_a.tRDRD_dr = max(tc_bank_rank_a.tRDRD_dr, 6);
+			tc_bank_rank_a.tRDRD_dd = max(tc_bank_rank_a.tRDRD_dd, 6);
+			mchbar_write32(TC_BANK_RANK_A_ch(channel), tc_bank_rank_a.raw);
+		}
+		if (enable_scrambling) {
+			const union ddr_scramble_reg ddr_scramble = {
+				.scram_key = get_random_number(channel),
+				.scram_en  = 1,
+			};
+			mchbar_write32(DDR_SCRAMBLE_ch(channel), ddr_scramble.raw);
+		}
+		if (ctrl->tCMD == 1) {
+			/* If we are in 1N mode, enable and set command rate limit to 3 */
+			union mcmain_command_rate_limit_reg cmd_rate_limit = {
+				.raw = mchbar_read32(COMMAND_RATE_LIMIT_ch(channel)),
+			};
+			cmd_rate_limit.enable_cmd_limit = 1;
+			cmd_rate_limit.cmd_rate_limit   = 3;
+			mchbar_write32(COMMAND_RATE_LIMIT_ch(channel), cmd_rate_limit.raw);
+		}
+		if (enable_cmd_tristate) {
+			/* Enable command tri-state at the end of training */
+			union tc_bank_rank_a_reg tc_bank_rank_a = {
+				.raw = mchbar_read32(TC_BANK_RANK_A_ch(channel)),
+			};
+			tc_bank_rank_a.cmd_3st_dis = 0;
+			mchbar_write32(TC_BANK_RANK_A_ch(channel), tc_bank_rank_a.raw);
+		}
+		/* Set MC to normal mode and clean the ODT and CKE */
+		mchbar_write32(REUT_ch_SEQ_CFG(channel), REUT_MODE_NOP << 12);
+		/* Set again the rank occupancy */
+		mchbar_write8(MC_INIT_STATE_ch(channel), ctrl->rankmap[channel]);
+		if (ctrl->is_ecc) {
+			/* Enable ECC I/O and logic */
+			union mad_dimm_reg mad_dimm = {
+				.raw = mchbar_read32(MAD_DIMM(channel)),
+			};
+			mad_dimm.ecc_mode = 3;
+			mchbar_write32(MAD_DIMM(channel), mad_dimm.raw);
+		}
+	}
+
+	if (!is_hsw_ult())
+		update_internal_clocks_on(ctrl);
+
+	update_sdll_length(ctrl);
+
+	program_burst_end_odt_delay(ctrl);
+
+	if (is_hsw_ult()) {
+		for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+			if (!does_ch_exist(ctrl, channel))
+				continue;
+
+			set_rx_clk_stg_num(ctrl, channel);
+		}
+		/** TODO: Program DDRPL_CR_DDR_TX_DELAY if Memory Trace is enabled **/
+	}
+
+	/* Enable periodic COMP */
+	mchbar_write32(M_COMP, (union pcu_comp_reg) {
+		.comp_interval = COMP_INT,
+	}.raw);
+
+	/* Enable the power mode before PCU starts working */
+	train_power_modes_post(ctrl);
+
+	/* Set idle timer and self refresh enable bits */
+	enter_sr();
+
+	/** FIXME: Do not hardcode power weights and RAPL settings **/
+	mchbar_write32(0x5888, 0x00000d0d);
+	mchbar_write32(0x5884, 0x00000004);	/* 58.2 pJ */
+
+	mchbar_write32(0x58e0, 0);
+	mchbar_write32(0x58e4, 0);
+
+	mchbar_write32(0x5890, 0xffff);
+	mchbar_write32(0x5894, 0xffff);
+	mchbar_write32(0x5898, 0xffff);
+	mchbar_write32(0x589c, 0xffff);
+	mchbar_write32(0x58d0, 0xffff);
+	mchbar_write32(0x58d4, 0xffff);
+	mchbar_write32(0x58d8, 0xffff);
+	mchbar_write32(0x58dc, 0xffff);
+
+	/* Overwrite thermal parameters */
+	for (uint8_t channel = 0; channel < NUM_CHANNELS; channel++) {
+		mchbar_write32(_MCMAIN_C(0x42ec, channel), 0x0000000f);
+		mchbar_write32(_MCMAIN_C(0x42f0, channel), 0x00000009);
+		mchbar_write32(_MCMAIN_C(0x42f4, channel), 0x00000093);
+		mchbar_write32(_MCMAIN_C(0x42f8, channel), 0x00000087);
+		mchbar_write32(_MCMAIN_C(0x42fc, channel), 0x000000de);
+
+		/** TODO: Differs for LPDDR **/
+		mchbar_write32(PM_THRT_CKE_MIN_ch(channel), 0x30);
+	}
+	mchbar_write32(PCU_DDR_PTM_CTL, 0x40);
+	return RAMINIT_STATUS_SUCCESS;
+}
+
+static void mc_lockdown(void)
+{
+	/* Lock memory controller registers */
+	mchbar_write32(MC_LOCK, 0x8f);
+
+	/* MPCOHTRK_GDXC_OCLA_ADDRESS_HI_LOCK is set when programming the memory map */
+
+	/* Lock memory map registers */
+	pci_or_config16(HOST_BRIDGE, GGC,         1 <<  0);
+	pci_or_config32(HOST_BRIDGE, DPR,         1 <<  0);
+	pci_or_config32(HOST_BRIDGE, MESEG_LIMIT, 1 << 10);
+	pci_or_config32(HOST_BRIDGE, REMAPBASE,   1 <<  0);
+	pci_or_config32(HOST_BRIDGE, REMAPLIMIT,  1 <<  0);
+	pci_or_config32(HOST_BRIDGE, TOM,         1 <<  0);
+	pci_or_config32(HOST_BRIDGE, TOUUD,       1 <<  0);
+	pci_or_config32(HOST_BRIDGE, BDSM,        1 <<  0);
+	pci_or_config32(HOST_BRIDGE, BGSM,        1 <<  0);
+	pci_or_config32(HOST_BRIDGE, TOLUD,       1 <<  0);
+}
+
+enum raminit_status raminit_done(struct sysinfo *ctrl)
+{
+	union mc_init_state_g_reg mc_init_state_g = {
+		.raw = mchbar_read32(MC_INIT_STATE_G),
+	};
+	mc_init_state_g.refresh_enable = 1;
+	mc_init_state_g.pu_mrc_done    = 1;
+	mc_init_state_g.mrc_done       = 1;
+	mchbar_write32(MC_INIT_STATE_G, mc_init_state_g.raw);
+
+	/* Lock the memory controller to enable normal operation */
+	mc_lockdown();
+
+	/* Poll for mc_init_done_ack to make sure memory initialization is complete */
+	printk(BIOS_DEBUG, "Waiting for mc_init_done acknowledgement... ");
+
+	struct stopwatch timer;
+	stopwatch_init_msecs_expire(&timer, 2000);
+	do {
+		mc_init_state_g.raw = mchbar_read32(MC_INIT_STATE_G);
+
+		/* DRAM will NOT work without the acknowledgement. There is no hope. */
+		if (stopwatch_expired(&timer))
+			die("\nTimed out waiting for mc_init_done acknowledgement\n");
+
+	} while (mc_init_state_g.mc_init_done_ack == 0);
+	printk(BIOS_DEBUG, "DONE!\n");
+
+	/* Provide some data for the graphics driver. Yes, it's hardcoded. */
+	mchbar_write32(SSKPD + 0, 0x05a2404f);
+	mchbar_write32(SSKPD + 4, 0x140000a0);
+	return RAMINIT_STATUS_SUCCESS;
+}
diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_main.c b/src/northbridge/intel/haswell/native_raminit/raminit_main.c
index 1ff23be615..3a65fb01fb 100644
--- a/src/northbridge/intel/haswell/native_raminit/raminit_main.c
+++ b/src/northbridge/intel/haswell/native_raminit/raminit_main.c
@@ -63,6 +63,8 @@ static const struct task_entry cold_boot[] = {
 	{ train_receive_enable,                                   true, "RCVET",      },
 	{ train_read_mpr,                                         true, "RDMPRT",     },
 	{ train_jedec_write_leveling,                             true, "JWRL",       },
+	{ activate_mc,                                            true, "ACTIVATE",   },
+	{ raminit_done,                                           true, "RAMINITEND", },
 };
 
 /* Return a generic stepping value to make stepping checks simpler */
@@ -143,7 +145,4 @@ void raminit_main(const enum raminit_boot_mode bootmode)
 
 	if (status != RAMINIT_STATUS_SUCCESS)
 		die("Memory initialization was met with utmost failure and misery\n");
-
-	/** TODO: Implement the required magic **/
-	die("NATIVE RAMINIT: More Magic (tm) required.\n");
 }
diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.c b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
index 2fed93de5b..5f7ceec222 100644
--- a/src/northbridge/intel/haswell/native_raminit/raminit_native.c
+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.c
@@ -199,8 +199,6 @@ void perform_raminit(const int s3resume)
 		else
 			me_status = ME_INIT_STATUS_SUCCESS;
 
-		/** TODO: Remove this once raminit is implemented **/
-		me_status = ME_INIT_STATUS_ERROR;
 		intel_early_me_init_done(me_status);
 	}
 
@@ -214,7 +212,8 @@ void perform_raminit(const int s3resume)
 	}
 
 	/* Save training data on non-S3 resumes */
-	if (!s3resume)
+	/** TODO: Enable this once training data is populated **/
+	if (0 && !s3resume)
 		save_mrc_data(&md);
 
 	/** TODO: setup_sdram_meminfo **/
diff --git a/src/northbridge/intel/haswell/native_raminit/raminit_native.h b/src/northbridge/intel/haswell/native_raminit/raminit_native.h
index d6b11b9d3c..a0a913f926 100644
--- a/src/northbridge/intel/haswell/native_raminit/raminit_native.h
+++ b/src/northbridge/intel/haswell/native_raminit/raminit_native.h
@@ -448,6 +448,8 @@ enum raminit_status do_jedec_init(struct sysinfo *ctrl);
 enum raminit_status train_receive_enable(struct sysinfo *ctrl);
 enum raminit_status train_read_mpr(struct sysinfo *ctrl);
 enum raminit_status train_jedec_write_leveling(struct sysinfo *ctrl);
+enum raminit_status activate_mc(struct sysinfo *ctrl);
+enum raminit_status raminit_done(struct sysinfo *ctrl);
 
 void configure_timings(struct sysinfo *ctrl);
 void configure_refresh(struct sysinfo *ctrl);
diff --git a/src/northbridge/intel/haswell/native_raminit/reg_structs.h b/src/northbridge/intel/haswell/native_raminit/reg_structs.h
index a0e36ed082..0d9aaa1f7c 100644
--- a/src/northbridge/intel/haswell/native_raminit/reg_structs.h
+++ b/src/northbridge/intel/haswell/native_raminit/reg_structs.h
@@ -294,6 +294,18 @@ union ddr_cke_ctl_controls_reg {
 	uint32_t raw;
 };
 
+union ddr_scramble_reg {
+	struct __packed {
+		uint32_t scram_en    :  1; // Bits  0:0
+		uint32_t scram_key   : 16; // Bits 16:1
+		uint32_t clk_gate_ab :  2; // Bits 18:17
+		uint32_t clk_gate_c  :  2; // Bits 20:19
+		uint32_t en_dbi_ab   :  1; // Bits 21:21
+		uint32_t             : 10; // Bits 31:17
+	};
+	uint32_t raw;
+};
+
 union ddr_scram_misc_control_reg {
 	struct __packed {
 		uint32_t wl_wake_cycles       :  2; // Bits  1:0
diff --git a/src/northbridge/intel/haswell/registers/mchbar.h b/src/northbridge/intel/haswell/registers/mchbar.h
index 7c0b5a49de..49a215aa71 100644
--- a/src/northbridge/intel/haswell/registers/mchbar.h
+++ b/src/northbridge/intel/haswell/registers/mchbar.h
@@ -20,6 +20,7 @@
 
 #define DDR_DATA_TRAIN_FEEDBACK(ch, byte)	_DDRIO_C_R_B(0x0054, ch, 0, byte)
 
+#define DQ_CONTROL_1(ch, byte)			_DDRIO_C_R_B(0x0060, ch, 0, byte)
 #define DQ_CONTROL_2(ch, byte)			_DDRIO_C_R_B(0x0064, ch, 0, byte)
 #define DDR_DATA_OFFSET_TRAIN_ch_b(ch, byte)	_DDRIO_C_R_B(0x0070, ch, 0, byte)
 #define DQ_CONTROL_0(ch, byte)			_DDRIO_C_R_B(0x0074, ch, 0, byte)
@@ -147,6 +148,8 @@
 #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 PM_THRT_CKE_MIN_ch(ch)			_MCMAIN_C(0x4328, ch)
+
 #define REUT_GLOBAL_CTL				0x4800
 #define REUT_GLOBAL_ERR				0x4804
 
@@ -175,6 +178,8 @@
 
 #define MCSCHEDS_DFT_MISC	0x4c30
 
+#define PM_PDWN_CONFIG		0x4cb0
+
 #define REUT_ERR_DATA_STATUS	0x4ce0
 
 #define REUT_MISC_CKE_CTRL	0x4d90
@@ -186,8 +191,10 @@
 #define MAD_CHNL		0x5000 /* Address Decoder Channel Configuration */
 #define MAD_DIMM(ch)		(0x5004 + (ch) * 4)
 #define MAD_ZR			0x5014
+#define MCDECS_CBIT		0x501c
 #define MC_INIT_STATE_G		0x5030
 #define MRC_REVISION		0x5034 /* MRC Revision */
+#define PM_SREF_CONFIG		0x5060
 
 #define RCOMP_TIMER		0x5084
 
-- 
2.39.2