diff --git a/CREDITS b/CREDITS
index 4e680556f92a..2562f1375eb3 100644
--- a/CREDITS
+++ b/CREDITS
@@ -3800,6 +3800,10 @@ S: Department of Zoology, University of Washington
 S: Seattle, WA  98195-1800
 S: USA
 
+N: York Sun
+E: york.sun@nxp.com
+D: Freescale DDR EDAC
+
 N: Eugene Surovegin
 E: ebs@ebshome.net
 W: https://kernel.ebshome.net/
diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
index 84f778a99546..e0786153eec7 100644
--- a/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
+++ b/Documentation/devicetree/bindings/memory-controllers/fsl/fsl,ddr.yaml
@@ -40,6 +40,7 @@ properties:
           - fsl,p1021-memory-controller
           - fsl,p2020-memory-controller
           - fsl,qoriq-memory-controller
+          - nxp,imx9-memory-controller
 
   interrupts:
     maxItems: 1
@@ -51,13 +52,41 @@ properties:
     type: boolean
 
   reg:
-    maxItems: 1
+    items:
+      - description: Controller register space
+      - description: Inject register space
+    minItems: 1
+
+  reg-names:
+    items:
+      - const: ctrl
+      - const: inject
+    minItems: 1
 
 required:
   - compatible
   - interrupts
   - reg
 
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nxp,imx9-memory-controller
+    then:
+      properties:
+        reg:
+          minItems: 2
+        reg-names:
+          minItems: 2
+    else:
+      properties:
+        reg:
+          maxItems: 1
+        reg-names: false
+
 additionalProperties: false
 
 examples:
diff --git a/MAINTAINERS b/MAINTAINERS
index afd984b3cc6c..b23f8e9f23b3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8103,7 +8103,8 @@ S:	Maintained
 F:	drivers/edac/e7xxx_edac.c
 
 EDAC-FSL_DDR
-M:	York Sun <york.sun@nxp.com>
+R:	Frank Li <Frank.Li@nxp.com>
+L:	imx@lists.linux.dev
 L:	linux-edac@vger.kernel.org
 S:	Maintained
 F:	drivers/edac/fsl_ddr_edac.*
diff --git a/drivers/edac/bluefield_edac.c b/drivers/edac/bluefield_edac.c
index 5b3164560648..739132e5ed8a 100644
--- a/drivers/edac/bluefield_edac.c
+++ b/drivers/edac/bluefield_edac.c
@@ -47,13 +47,22 @@
 #define MLXBF_EDAC_MAX_DIMM_PER_MC	2
 #define MLXBF_EDAC_ERROR_GRAIN		8
 
+#define MLXBF_WRITE_REG_32		(0x82000009)
+#define MLXBF_READ_REG_32		(0x8200000A)
+#define MLXBF_SIP_SVC_VERSION		(0x8200ff03)
+
+#define MLXBF_SMCCC_ACCESS_VIOLATION	(-4)
+
+#define MLXBF_SVC_REQ_MAJOR		0
+#define MLXBF_SVC_REQ_MINOR		3
+
 /*
- * Request MLNX_SIP_GET_DIMM_INFO
+ * Request MLXBF_SIP_GET_DIMM_INFO
  *
  * Retrieve information about DIMM on a certain slot.
  *
  * Call register usage:
- * a0: MLNX_SIP_GET_DIMM_INFO
+ * a0: MLXBF_SIP_GET_DIMM_INFO
  * a1: (Memory controller index) << 16 | (Dimm index in memory controller)
  * a2-7: not used.
  *
@@ -61,7 +70,7 @@
  * a0: MLXBF_DIMM_INFO defined below describing the DIMM.
  * a1-3: not used.
  */
-#define MLNX_SIP_GET_DIMM_INFO		0x82000008
+#define MLXBF_SIP_GET_DIMM_INFO		0x82000008
 
 /* Format for the SMC response about the memory information */
 #define MLXBF_DIMM_INFO__SIZE_GB GENMASK_ULL(15, 0)
@@ -72,9 +81,15 @@
 #define MLXBF_DIMM_INFO__PACKAGE_X GENMASK_ULL(31, 24)
 
 struct bluefield_edac_priv {
+	/* pointer to device structure */
+	struct device *dev;
 	int dimm_ranks[MLXBF_EDAC_MAX_DIMM_PER_MC];
 	void __iomem *emi_base;
 	int dimm_per_mc;
+	/* access to secure regs supported */
+	bool svc_sreg_support;
+	/* SMC table# for secure regs access */
+	u32 sreg_tbl;
 };
 
 static u64 smc_call1(u64 smc_op, u64 smc_arg)
@@ -86,6 +101,71 @@ static u64 smc_call1(u64 smc_op, u64 smc_arg)
 	return res.a0;
 }
 
+static int secure_readl(void __iomem *addr, u32 *result, u32 sreg_tbl)
+{
+	struct arm_smccc_res res;
+	int status;
+
+	arm_smccc_smc(MLXBF_READ_REG_32, sreg_tbl, (uintptr_t)addr,
+		      0, 0, 0, 0, 0, &res);
+
+	status = res.a0;
+
+	if (status == SMCCC_RET_NOT_SUPPORTED ||
+	    status == MLXBF_SMCCC_ACCESS_VIOLATION)
+		return -1;
+
+	*result = (u32)res.a1;
+	return 0;
+}
+
+static int secure_writel(void __iomem *addr, u32 data, u32 sreg_tbl)
+{
+	struct arm_smccc_res res;
+	int status;
+
+	arm_smccc_smc(MLXBF_WRITE_REG_32, sreg_tbl, data, (uintptr_t)addr,
+		      0, 0, 0, 0, &res);
+
+	status = res.a0;
+
+	if (status == SMCCC_RET_NOT_SUPPORTED ||
+	    status == MLXBF_SMCCC_ACCESS_VIOLATION)
+		return -1;
+	else
+		return 0;
+}
+
+static int bluefield_edac_readl(struct bluefield_edac_priv *priv, u32 offset, u32 *result)
+{
+	void __iomem *addr;
+	int err = 0;
+
+	addr = priv->emi_base + offset;
+
+	if (priv->svc_sreg_support)
+		err = secure_readl(addr, result, priv->sreg_tbl);
+	else
+		*result = readl(addr);
+
+	return err;
+}
+
+static int bluefield_edac_writel(struct bluefield_edac_priv *priv, u32 offset, u32 data)
+{
+	void __iomem *addr;
+	int err = 0;
+
+	addr = priv->emi_base + offset;
+
+	if (priv->svc_sreg_support)
+		err = secure_writel(addr, data, priv->sreg_tbl);
+	else
+		writel(data, addr);
+
+	return err;
+}
+
 /*
  * Gather the ECC information from the External Memory Interface registers
  * and report it to the edac handler.
@@ -99,7 +179,7 @@ static void bluefield_gather_report_ecc(struct mem_ctl_info *mci,
 	u32 ecc_latch_select, dram_syndrom, serr, derr, syndrom;
 	enum hw_event_mc_err_type ecc_type;
 	u64 ecc_dimm_addr;
-	int ecc_dimm;
+	int ecc_dimm, err;
 
 	ecc_type = is_single_ecc ? HW_EVENT_ERR_CORRECTED :
 				   HW_EVENT_ERR_UNCORRECTED;
@@ -109,14 +189,19 @@ static void bluefield_gather_report_ecc(struct mem_ctl_info *mci,
 	 * registers with information about the last ECC error occurrence.
 	 */
 	ecc_latch_select = MLXBF_ECC_LATCH_SEL__START;
-	writel(ecc_latch_select, priv->emi_base + MLXBF_ECC_LATCH_SEL);
+	err = bluefield_edac_writel(priv, MLXBF_ECC_LATCH_SEL, ecc_latch_select);
+	if (err)
+		dev_err(priv->dev, "ECC latch select write failed.\n");
 
 	/*
 	 * Verify that the ECC reported info in the registers is of the
 	 * same type as the one asked to report. If not, just report the
 	 * error without the detailed information.
 	 */
-	dram_syndrom = readl(priv->emi_base + MLXBF_SYNDROM);
+	err = bluefield_edac_readl(priv, MLXBF_SYNDROM, &dram_syndrom);
+	if (err)
+		dev_err(priv->dev, "DRAM syndrom read failed.\n");
+
 	serr = FIELD_GET(MLXBF_SYNDROM__SERR, dram_syndrom);
 	derr = FIELD_GET(MLXBF_SYNDROM__DERR, dram_syndrom);
 	syndrom = FIELD_GET(MLXBF_SYNDROM__SYN, dram_syndrom);
@@ -127,13 +212,21 @@ static void bluefield_gather_report_ecc(struct mem_ctl_info *mci,
 		return;
 	}
 
-	dram_additional_info = readl(priv->emi_base + MLXBF_ADD_INFO);
+	err = bluefield_edac_readl(priv, MLXBF_ADD_INFO, &dram_additional_info);
+	if (err)
+		dev_err(priv->dev, "DRAM additional info read failed.\n");
+
 	err_prank = FIELD_GET(MLXBF_ADD_INFO__ERR_PRANK, dram_additional_info);
 
 	ecc_dimm = (err_prank >= 2 && priv->dimm_ranks[0] <= 2) ? 1 : 0;
 
-	edea0 = readl(priv->emi_base + MLXBF_ERR_ADDR_0);
-	edea1 = readl(priv->emi_base + MLXBF_ERR_ADDR_1);
+	err = bluefield_edac_readl(priv, MLXBF_ERR_ADDR_0, &edea0);
+	if (err)
+		dev_err(priv->dev, "Error addr 0 read failed.\n");
+
+	err = bluefield_edac_readl(priv, MLXBF_ERR_ADDR_1, &edea1);
+	if (err)
+		dev_err(priv->dev, "Error addr 1 read failed.\n");
 
 	ecc_dimm_addr = ((u64)edea1 << 32) | edea0;
 
@@ -147,6 +240,7 @@ static void bluefield_edac_check(struct mem_ctl_info *mci)
 {
 	struct bluefield_edac_priv *priv = mci->pvt_info;
 	u32 ecc_count, single_error_count, double_error_count, ecc_error = 0;
+	int err;
 
 	/*
 	 * The memory controller might not be initialized by the firmware
@@ -155,7 +249,10 @@ static void bluefield_edac_check(struct mem_ctl_info *mci)
 	if (mci->edac_cap == EDAC_FLAG_NONE)
 		return;
 
-	ecc_count = readl(priv->emi_base + MLXBF_ECC_CNT);
+	err = bluefield_edac_readl(priv, MLXBF_ECC_CNT, &ecc_count);
+	if (err)
+		dev_err(priv->dev, "ECC count read failed.\n");
+
 	single_error_count = FIELD_GET(MLXBF_ECC_CNT__SERR_CNT, ecc_count);
 	double_error_count = FIELD_GET(MLXBF_ECC_CNT__DERR_CNT, ecc_count);
 
@@ -172,15 +269,18 @@ static void bluefield_edac_check(struct mem_ctl_info *mci)
 	}
 
 	/* Write to clear reported errors. */
-	if (ecc_count)
-		writel(ecc_error, priv->emi_base + MLXBF_ECC_ERR);
+	if (ecc_count) {
+		err = bluefield_edac_writel(priv, MLXBF_ECC_ERR, ecc_error);
+		if (err)
+			dev_err(priv->dev, "ECC Error write failed.\n");
+	}
 }
 
 /* Initialize the DIMMs information for the given memory controller. */
 static void bluefield_edac_init_dimms(struct mem_ctl_info *mci)
 {
 	struct bluefield_edac_priv *priv = mci->pvt_info;
-	int mem_ctrl_idx = mci->mc_idx;
+	u64 mem_ctrl_idx = mci->mc_idx;
 	struct dimm_info *dimm;
 	u64 smc_info, smc_arg;
 	int is_empty = 1, i;
@@ -189,7 +289,7 @@ static void bluefield_edac_init_dimms(struct mem_ctl_info *mci)
 		dimm = mci->dimms[i];
 
 		smc_arg = mem_ctrl_idx << 16 | i;
-		smc_info = smc_call1(MLNX_SIP_GET_DIMM_INFO, smc_arg);
+		smc_info = smc_call1(MLXBF_SIP_GET_DIMM_INFO, smc_arg);
 
 		if (!FIELD_GET(MLXBF_DIMM_INFO__SIZE_GB, smc_info)) {
 			dimm->mtype = MEM_EMPTY;
@@ -244,6 +344,7 @@ static int bluefield_edac_mc_probe(struct platform_device *pdev)
 	struct bluefield_edac_priv *priv;
 	struct device *dev = &pdev->dev;
 	struct edac_mc_layer layers[1];
+	struct arm_smccc_res res;
 	struct mem_ctl_info *mci;
 	struct resource *emi_res;
 	unsigned int mc_idx, dimm_count;
@@ -279,13 +380,43 @@ static int bluefield_edac_mc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	priv = mci->pvt_info;
+	priv->dev = dev;
+
+	/*
+	 * The "sec_reg_block" property in the ACPI table determines the method
+	 * the driver uses to access the EMI registers:
+	 * a) property is not present - directly access registers via readl/writel
+	 * b) property is present - indirectly access registers via SMC calls
+	 *    (assuming required Silicon Provider service version found)
+	 */
+	if (device_property_read_u32(dev, "sec_reg_block", &priv->sreg_tbl)) {
+		priv->svc_sreg_support = false;
+	} else {
+		/*
+		 * Check for minimum required Arm Silicon Provider (SiP) service
+		 * version, ensuring support of required SMC function IDs.
+		 */
+		arm_smccc_smc(MLXBF_SIP_SVC_VERSION, 0, 0, 0, 0, 0, 0, 0, &res);
+		if (res.a0 == MLXBF_SVC_REQ_MAJOR &&
+		    res.a1 >= MLXBF_SVC_REQ_MINOR) {
+			priv->svc_sreg_support = true;
+		} else {
+			dev_err(dev, "Required SMCs are not supported.\n");
+			ret = -EINVAL;
+			goto err;
+		}
+	}
 
 	priv->dimm_per_mc = dimm_count;
-	priv->emi_base = devm_ioremap_resource(dev, emi_res);
-	if (IS_ERR(priv->emi_base)) {
-		dev_err(dev, "failed to map EMI IO resource\n");
-		ret = PTR_ERR(priv->emi_base);
-		goto err;
+	if (!priv->svc_sreg_support) {
+		priv->emi_base = devm_ioremap_resource(dev, emi_res);
+		if (IS_ERR(priv->emi_base)) {
+			dev_err(dev, "failed to map EMI IO resource\n");
+			ret = PTR_ERR(priv->emi_base);
+			goto err;
+		}
+	} else {
+		priv->emi_base = (void __iomem *)emi_res->start;
 	}
 
 	mci->pdev = dev;
@@ -320,7 +451,6 @@ static int bluefield_edac_mc_probe(struct platform_device *pdev)
 	edac_mc_free(mci);
 
 	return ret;
-
 }
 
 static void bluefield_edac_mc_remove(struct platform_device *pdev)
diff --git a/drivers/edac/fsl_ddr_edac.c b/drivers/edac/fsl_ddr_edac.c
index d148d262d0d4..e4eaec0aa81d 100644
--- a/drivers/edac/fsl_ddr_edac.c
+++ b/drivers/edac/fsl_ddr_edac.c
@@ -31,18 +31,30 @@
 
 static int edac_mc_idx;
 
-static u32 orig_ddr_err_disable;
-static u32 orig_ddr_err_sbe;
-static bool little_endian;
-
-static inline u32 ddr_in32(void __iomem *addr)
+static inline void __iomem *ddr_reg_addr(struct fsl_mc_pdata *pdata, unsigned int off)
 {
-	return little_endian ? ioread32(addr) : ioread32be(addr);
+	if (pdata->flag == TYPE_IMX9 && off >= FSL_MC_DATA_ERR_INJECT_HI && off <= FSL_MC_ERR_SBE)
+		return pdata->inject_vbase + off - FSL_MC_DATA_ERR_INJECT_HI
+		       + IMX9_MC_DATA_ERR_INJECT_OFF;
+
+	if (pdata->flag == TYPE_IMX9 && off >= IMX9_MC_ERR_EN)
+		return pdata->inject_vbase + off - IMX9_MC_ERR_EN;
+
+	return pdata->mc_vbase + off;
 }
 
-static inline void ddr_out32(void __iomem *addr, u32 value)
+static inline u32 ddr_in32(struct fsl_mc_pdata *pdata, unsigned int off)
 {
-	if (little_endian)
+	void __iomem *addr = ddr_reg_addr(pdata, off);
+
+	return pdata->little_endian ? ioread32(addr) : ioread32be(addr);
+}
+
+static inline void ddr_out32(struct fsl_mc_pdata *pdata, unsigned int off, u32 value)
+{
+	void __iomem *addr = ddr_reg_addr(pdata, off);
+
+	if (pdata->little_endian)
 		iowrite32(value, addr);
 	else
 		iowrite32be(value, addr);
@@ -60,7 +72,7 @@ static ssize_t fsl_mc_inject_data_hi_show(struct device *dev,
 	struct mem_ctl_info *mci = to_mci(dev);
 	struct fsl_mc_pdata *pdata = mci->pvt_info;
 	return sprintf(data, "0x%08x",
-		       ddr_in32(pdata->mc_vbase + FSL_MC_DATA_ERR_INJECT_HI));
+		       ddr_in32(pdata, FSL_MC_DATA_ERR_INJECT_HI));
 }
 
 static ssize_t fsl_mc_inject_data_lo_show(struct device *dev,
@@ -70,7 +82,7 @@ static ssize_t fsl_mc_inject_data_lo_show(struct device *dev,
 	struct mem_ctl_info *mci = to_mci(dev);
 	struct fsl_mc_pdata *pdata = mci->pvt_info;
 	return sprintf(data, "0x%08x",
-		       ddr_in32(pdata->mc_vbase + FSL_MC_DATA_ERR_INJECT_LO));
+		       ddr_in32(pdata, FSL_MC_DATA_ERR_INJECT_LO));
 }
 
 static ssize_t fsl_mc_inject_ctrl_show(struct device *dev,
@@ -80,7 +92,7 @@ static ssize_t fsl_mc_inject_ctrl_show(struct device *dev,
 	struct mem_ctl_info *mci = to_mci(dev);
 	struct fsl_mc_pdata *pdata = mci->pvt_info;
 	return sprintf(data, "0x%08x",
-		       ddr_in32(pdata->mc_vbase + FSL_MC_ECC_ERR_INJECT));
+		       ddr_in32(pdata, FSL_MC_ECC_ERR_INJECT));
 }
 
 static ssize_t fsl_mc_inject_data_hi_store(struct device *dev,
@@ -97,7 +109,7 @@ static ssize_t fsl_mc_inject_data_hi_store(struct device *dev,
 		if (rc)
 			return rc;
 
-		ddr_out32(pdata->mc_vbase + FSL_MC_DATA_ERR_INJECT_HI, val);
+		ddr_out32(pdata, FSL_MC_DATA_ERR_INJECT_HI, val);
 		return count;
 	}
 	return 0;
@@ -117,7 +129,7 @@ static ssize_t fsl_mc_inject_data_lo_store(struct device *dev,
 		if (rc)
 			return rc;
 
-		ddr_out32(pdata->mc_vbase + FSL_MC_DATA_ERR_INJECT_LO, val);
+		ddr_out32(pdata, FSL_MC_DATA_ERR_INJECT_LO, val);
 		return count;
 	}
 	return 0;
@@ -137,7 +149,7 @@ static ssize_t fsl_mc_inject_ctrl_store(struct device *dev,
 		if (rc)
 			return rc;
 
-		ddr_out32(pdata->mc_vbase + FSL_MC_ECC_ERR_INJECT, val);
+		ddr_out32(pdata, FSL_MC_ECC_ERR_INJECT, val);
 		return count;
 	}
 	return 0;
@@ -286,7 +298,7 @@ static void fsl_mc_check(struct mem_ctl_info *mci)
 	int bad_data_bit;
 	int bad_ecc_bit;
 
-	err_detect = ddr_in32(pdata->mc_vbase + FSL_MC_ERR_DETECT);
+	err_detect = ddr_in32(pdata, FSL_MC_ERR_DETECT);
 	if (!err_detect)
 		return;
 
@@ -295,14 +307,14 @@ static void fsl_mc_check(struct mem_ctl_info *mci)
 
 	/* no more processing if not ECC bit errors */
 	if (!(err_detect & (DDR_EDE_SBE | DDR_EDE_MBE))) {
-		ddr_out32(pdata->mc_vbase + FSL_MC_ERR_DETECT, err_detect);
+		ddr_out32(pdata, FSL_MC_ERR_DETECT, err_detect);
 		return;
 	}
 
-	syndrome = ddr_in32(pdata->mc_vbase + FSL_MC_CAPTURE_ECC);
+	syndrome = ddr_in32(pdata, FSL_MC_CAPTURE_ECC);
 
 	/* Mask off appropriate bits of syndrome based on bus width */
-	bus_width = (ddr_in32(pdata->mc_vbase + FSL_MC_DDR_SDRAM_CFG) &
+	bus_width = (ddr_in32(pdata, FSL_MC_DDR_SDRAM_CFG) &
 		     DSC_DBW_MASK) ? 32 : 64;
 	if (bus_width == 64)
 		syndrome &= 0xff;
@@ -310,8 +322,8 @@ static void fsl_mc_check(struct mem_ctl_info *mci)
 		syndrome &= 0xffff;
 
 	err_addr = make64(
-		ddr_in32(pdata->mc_vbase + FSL_MC_CAPTURE_EXT_ADDRESS),
-		ddr_in32(pdata->mc_vbase + FSL_MC_CAPTURE_ADDRESS));
+		ddr_in32(pdata, FSL_MC_CAPTURE_EXT_ADDRESS),
+		ddr_in32(pdata, FSL_MC_CAPTURE_ADDRESS));
 	pfn = err_addr >> PAGE_SHIFT;
 
 	for (row_index = 0; row_index < mci->nr_csrows; row_index++) {
@@ -320,29 +332,33 @@ static void fsl_mc_check(struct mem_ctl_info *mci)
 			break;
 	}
 
-	cap_high = ddr_in32(pdata->mc_vbase + FSL_MC_CAPTURE_DATA_HI);
-	cap_low = ddr_in32(pdata->mc_vbase + FSL_MC_CAPTURE_DATA_LO);
+	cap_high = ddr_in32(pdata, FSL_MC_CAPTURE_DATA_HI);
+	cap_low = ddr_in32(pdata, FSL_MC_CAPTURE_DATA_LO);
 
 	/*
 	 * Analyze single-bit errors on 64-bit wide buses
 	 * TODO: Add support for 32-bit wide buses
 	 */
 	if ((err_detect & DDR_EDE_SBE) && (bus_width == 64)) {
+		u64 cap = (u64)cap_high << 32 | cap_low;
+		u32 s = syndrome;
+
 		sbe_ecc_decode(cap_high, cap_low, syndrome,
 				&bad_data_bit, &bad_ecc_bit);
 
-		if (bad_data_bit != -1)
-			fsl_mc_printk(mci, KERN_ERR,
-				"Faulty Data bit: %d\n", bad_data_bit);
-		if (bad_ecc_bit != -1)
-			fsl_mc_printk(mci, KERN_ERR,
-				"Faulty ECC bit: %d\n", bad_ecc_bit);
+		if (bad_data_bit >= 0) {
+			fsl_mc_printk(mci, KERN_ERR, "Faulty Data bit: %d\n", bad_data_bit);
+			cap ^= 1ULL << bad_data_bit;
+		}
+
+		if (bad_ecc_bit >= 0) {
+			fsl_mc_printk(mci, KERN_ERR, "Faulty ECC bit: %d\n", bad_ecc_bit);
+			s ^= 1 << bad_ecc_bit;
+		}
 
 		fsl_mc_printk(mci, KERN_ERR,
 			"Expected Data / ECC:\t%#8.8x_%08x / %#2.2x\n",
-			cap_high ^ (1 << (bad_data_bit - 32)),
-			cap_low ^ (1 << bad_data_bit),
-			syndrome ^ (1 << bad_ecc_bit));
+			upper_32_bits(cap), lower_32_bits(cap), s);
 	}
 
 	fsl_mc_printk(mci, KERN_ERR,
@@ -367,7 +383,7 @@ static void fsl_mc_check(struct mem_ctl_info *mci)
 				     row_index, 0, -1,
 				     mci->ctl_name, "");
 
-	ddr_out32(pdata->mc_vbase + FSL_MC_ERR_DETECT, err_detect);
+	ddr_out32(pdata, FSL_MC_ERR_DETECT, err_detect);
 }
 
 static irqreturn_t fsl_mc_isr(int irq, void *dev_id)
@@ -376,7 +392,7 @@ static irqreturn_t fsl_mc_isr(int irq, void *dev_id)
 	struct fsl_mc_pdata *pdata = mci->pvt_info;
 	u32 err_detect;
 
-	err_detect = ddr_in32(pdata->mc_vbase + FSL_MC_ERR_DETECT);
+	err_detect = ddr_in32(pdata, FSL_MC_ERR_DETECT);
 	if (!err_detect)
 		return IRQ_NONE;
 
@@ -396,7 +412,7 @@ static void fsl_ddr_init_csrows(struct mem_ctl_info *mci)
 	u32 cs_bnds;
 	int index;
 
-	sdram_ctl = ddr_in32(pdata->mc_vbase + FSL_MC_DDR_SDRAM_CFG);
+	sdram_ctl = ddr_in32(pdata, FSL_MC_DDR_SDRAM_CFG);
 
 	sdtype = sdram_ctl & DSC_SDTYPE_MASK;
 	if (sdram_ctl & DSC_RD_EN) {
@@ -431,6 +447,9 @@ static void fsl_ddr_init_csrows(struct mem_ctl_info *mci)
 		case 0x05000000:
 			mtype = MEM_DDR4;
 			break;
+		case 0x04000000:
+			mtype = MEM_LPDDR4;
+			break;
 		default:
 			mtype = MEM_UNKNOWN;
 			break;
@@ -444,7 +463,7 @@ static void fsl_ddr_init_csrows(struct mem_ctl_info *mci)
 		csrow = mci->csrows[index];
 		dimm = csrow->channels[0]->dimm;
 
-		cs_bnds = ddr_in32(pdata->mc_vbase + FSL_MC_CS_BNDS_0 +
+		cs_bnds = ddr_in32(pdata, FSL_MC_CS_BNDS_0 +
 				   (index * FSL_MC_CS_BNDS_OFS));
 
 		start = (cs_bnds & 0xffff0000) >> 16;
@@ -464,7 +483,9 @@ static void fsl_ddr_init_csrows(struct mem_ctl_info *mci)
 		dimm->grain = 8;
 		dimm->mtype = mtype;
 		dimm->dtype = DEV_UNKNOWN;
-		if (sdram_ctl & DSC_X32_EN)
+		if (pdata->flag == TYPE_IMX9)
+			dimm->dtype = DEV_X16;
+		else if (sdram_ctl & DSC_X32_EN)
 			dimm->dtype = DEV_X32;
 		dimm->edac_mode = EDAC_SECDED;
 	}
@@ -476,6 +497,7 @@ int fsl_mc_err_probe(struct platform_device *op)
 	struct edac_mc_layer layers[2];
 	struct fsl_mc_pdata *pdata;
 	struct resource r;
+	u32 ecc_en_mask;
 	u32 sdram_ctl;
 	int res;
 
@@ -503,11 +525,13 @@ int fsl_mc_err_probe(struct platform_device *op)
 	mci->ctl_name = pdata->name;
 	mci->dev_name = pdata->name;
 
+	pdata->flag = (unsigned long)device_get_match_data(&op->dev);
+
 	/*
 	 * Get the endianness of DDR controller registers.
 	 * Default is big endian.
 	 */
-	little_endian = of_property_read_bool(op->dev.of_node, "little-endian");
+	pdata->little_endian = of_property_read_bool(op->dev.of_node, "little-endian");
 
 	res = of_address_to_resource(op->dev.of_node, 0, &r);
 	if (res) {
@@ -531,8 +555,23 @@ int fsl_mc_err_probe(struct platform_device *op)
 		goto err;
 	}
 
-	sdram_ctl = ddr_in32(pdata->mc_vbase + FSL_MC_DDR_SDRAM_CFG);
-	if (!(sdram_ctl & DSC_ECC_EN)) {
+	if (pdata->flag == TYPE_IMX9) {
+		pdata->inject_vbase = devm_platform_ioremap_resource_byname(op, "inject");
+		if (IS_ERR(pdata->inject_vbase)) {
+			res = -ENOMEM;
+			goto err;
+		}
+	}
+
+	if (pdata->flag == TYPE_IMX9) {
+		sdram_ctl = ddr_in32(pdata, IMX9_MC_ERR_EN);
+		ecc_en_mask = ERR_ECC_EN | ERR_INLINE_ECC;
+	} else {
+		sdram_ctl = ddr_in32(pdata, FSL_MC_DDR_SDRAM_CFG);
+		ecc_en_mask = DSC_ECC_EN;
+	}
+
+	if ((sdram_ctl & ecc_en_mask) != ecc_en_mask) {
 		/* no ECC */
 		pr_warn("%s: No ECC DIMMs discovered\n", __func__);
 		res = -ENODEV;
@@ -543,7 +582,8 @@ int fsl_mc_err_probe(struct platform_device *op)
 	mci->mtype_cap = MEM_FLAG_DDR | MEM_FLAG_RDDR |
 			 MEM_FLAG_DDR2 | MEM_FLAG_RDDR2 |
 			 MEM_FLAG_DDR3 | MEM_FLAG_RDDR3 |
-			 MEM_FLAG_DDR4 | MEM_FLAG_RDDR4;
+			 MEM_FLAG_DDR4 | MEM_FLAG_RDDR4 |
+			 MEM_FLAG_LPDDR4;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
 	mci->edac_cap = EDAC_FLAG_SECDED;
 	mci->mod_name = EDAC_MOD_STR;
@@ -558,11 +598,11 @@ int fsl_mc_err_probe(struct platform_device *op)
 	fsl_ddr_init_csrows(mci);
 
 	/* store the original error disable bits */
-	orig_ddr_err_disable = ddr_in32(pdata->mc_vbase + FSL_MC_ERR_DISABLE);
-	ddr_out32(pdata->mc_vbase + FSL_MC_ERR_DISABLE, 0);
+	pdata->orig_ddr_err_disable = ddr_in32(pdata, FSL_MC_ERR_DISABLE);
+	ddr_out32(pdata, FSL_MC_ERR_DISABLE, 0);
 
 	/* clear all error bits */
-	ddr_out32(pdata->mc_vbase + FSL_MC_ERR_DETECT, ~0);
+	ddr_out32(pdata, FSL_MC_ERR_DETECT, ~0);
 
 	res = edac_mc_add_mc_with_groups(mci, fsl_ddr_dev_groups);
 	if (res) {
@@ -571,15 +611,15 @@ int fsl_mc_err_probe(struct platform_device *op)
 	}
 
 	if (edac_op_state == EDAC_OPSTATE_INT) {
-		ddr_out32(pdata->mc_vbase + FSL_MC_ERR_INT_EN,
+		ddr_out32(pdata, FSL_MC_ERR_INT_EN,
 			  DDR_EIE_MBEE | DDR_EIE_SBEE);
 
 		/* store the original error management threshold */
-		orig_ddr_err_sbe = ddr_in32(pdata->mc_vbase +
-					    FSL_MC_ERR_SBE) & 0xff0000;
+		pdata->orig_ddr_err_sbe = ddr_in32(pdata,
+						   FSL_MC_ERR_SBE) & 0xff0000;
 
 		/* set threshold to 1 error per interrupt */
-		ddr_out32(pdata->mc_vbase + FSL_MC_ERR_SBE, 0x10000);
+		ddr_out32(pdata, FSL_MC_ERR_SBE, 0x10000);
 
 		/* register interrupts */
 		pdata->irq = platform_get_irq(op, 0);
@@ -620,12 +660,13 @@ void fsl_mc_err_remove(struct platform_device *op)
 	edac_dbg(0, "\n");
 
 	if (edac_op_state == EDAC_OPSTATE_INT) {
-		ddr_out32(pdata->mc_vbase + FSL_MC_ERR_INT_EN, 0);
+		ddr_out32(pdata, FSL_MC_ERR_INT_EN, 0);
 	}
 
-	ddr_out32(pdata->mc_vbase + FSL_MC_ERR_DISABLE,
-		  orig_ddr_err_disable);
-	ddr_out32(pdata->mc_vbase + FSL_MC_ERR_SBE, orig_ddr_err_sbe);
+	ddr_out32(pdata, FSL_MC_ERR_DISABLE,
+		  pdata->orig_ddr_err_disable);
+	ddr_out32(pdata, FSL_MC_ERR_SBE, pdata->orig_ddr_err_sbe);
+
 
 	edac_mc_del_mc(&op->dev);
 	edac_mc_free(mci);
diff --git a/drivers/edac/fsl_ddr_edac.h b/drivers/edac/fsl_ddr_edac.h
index c0994a2a003c..73618f79e587 100644
--- a/drivers/edac/fsl_ddr_edac.h
+++ b/drivers/edac/fsl_ddr_edac.h
@@ -39,6 +39,9 @@
 #define FSL_MC_CAPTURE_EXT_ADDRESS	0x0e54
 #define FSL_MC_ERR_SBE		0x0e58
 
+#define IMX9_MC_ERR_EN			0x1000
+#define IMX9_MC_DATA_ERR_INJECT_OFF	0x100
+
 #define DSC_MEM_EN	0x80000000
 #define DSC_ECC_EN	0x20000000
 #define DSC_RD_EN	0x10000000
@@ -46,6 +49,9 @@
 #define DSC_DBW_32	0x00080000
 #define DSC_DBW_64	0x00000000
 
+#define ERR_ECC_EN      0x80000000
+#define ERR_INLINE_ECC  0x40000000
+
 #define DSC_SDTYPE_MASK		0x07000000
 #define DSC_X32_EN	0x00000020
 
@@ -65,11 +71,18 @@
 #define	DDR_EDI_SBED	0x4	/* single-bit ECC error disable */
 #define	DDR_EDI_MBED	0x8	/* multi-bit ECC error disable */
 
+#define TYPE_IMX9	0x1	/* MC used by iMX9 having registers changed */
+
 struct fsl_mc_pdata {
 	char *name;
 	int edac_idx;
 	void __iomem *mc_vbase;
+	void __iomem *inject_vbase;
 	int irq;
+	u32 orig_ddr_err_disable;
+	u32 orig_ddr_err_sbe;
+	bool little_endian;
+	unsigned long flag;
 };
 int fsl_mc_err_probe(struct platform_device *op);
 void fsl_mc_err_remove(struct platform_device *op);
diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c
index e2a954de913b..51556c72a967 100644
--- a/drivers/edac/i10nm_base.c
+++ b/drivers/edac/i10nm_base.c
@@ -1036,6 +1036,7 @@ static int __init i10nm_init(void)
 		return -ENODEV;
 
 	cfg = (struct res_config *)id->driver_data;
+	skx_set_res_cfg(cfg);
 	res_cfg = cfg;
 
 	rc = skx_get_hi_lo(0x09a2, off, &tolm, &tohm);
diff --git a/drivers/edac/ie31200_edac.c b/drivers/edac/ie31200_edac.c
index 9ef13570f2e5..4fc16922dc1a 100644
--- a/drivers/edac/ie31200_edac.c
+++ b/drivers/edac/ie31200_edac.c
@@ -19,7 +19,8 @@
  * 0c04: Xeon E3-1200 v3/4th Gen Core Processor DRAM Controller
  * 0c08: Xeon E3-1200 v3 Processor DRAM Controller
  * 1918: Xeon E3-1200 v5 Skylake Host Bridge/DRAM Registers
- * 5918: Xeon E3-1200 Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
+ * 590f: Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
+ * 5918: Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers
  * 190f: 6th Gen Core Dual-Core Processor Host Bridge/DRAM Registers
  * 191f: 6th Gen Core Quad-Core Processor Host Bridge/DRAM Registers
  * 3e..: 8th/9th Gen Core Processor Host Bridge/DRAM Registers
@@ -67,7 +68,8 @@
 #define PCI_DEVICE_ID_INTEL_IE31200_HB_8  0x190F
 #define PCI_DEVICE_ID_INTEL_IE31200_HB_9  0x1918
 #define PCI_DEVICE_ID_INTEL_IE31200_HB_10 0x191F
-#define PCI_DEVICE_ID_INTEL_IE31200_HB_11 0x5918
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_11 0x590f
+#define PCI_DEVICE_ID_INTEL_IE31200_HB_12 0x5918
 
 /* Coffee Lake-S */
 #define PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK 0x3e00
@@ -88,6 +90,7 @@
 	 ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_9) ||                        \
 	 ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_10) ||                       \
 	 ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_11) ||                       \
+	 ((did) == PCI_DEVICE_ID_INTEL_IE31200_HB_12) ||                       \
 	 (((did) & PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK) ==                 \
 	  PCI_DEVICE_ID_INTEL_IE31200_HB_CFL_MASK))
 
@@ -587,6 +590,7 @@ static const struct pci_device_id ie31200_pci_tbl[] = {
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_9),      PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_10),     PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_11),     PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
+	{ PCI_VEND_DEV(INTEL, IE31200_HB_12),     PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_CFL_1),  PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_CFL_2),  PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
 	{ PCI_VEND_DEV(INTEL, IE31200_HB_CFL_3),  PCI_ANY_ID, PCI_ANY_ID, 0, 0, IE31200 },
diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c
index 189a2fc29e74..fdf3a84fe698 100644
--- a/drivers/edac/igen6_edac.c
+++ b/drivers/edac/igen6_edac.c
@@ -263,6 +263,11 @@ static struct work_struct ecclog_work;
 #define DID_ARL_UH_SKU2	0x7d20
 #define DID_ARL_UH_SKU3	0x7d30
 
+/* Compute die IDs for Panther Lake-H with IBECC */
+#define DID_PTL_H_SKU1	0xb000
+#define DID_PTL_H_SKU2	0xb001
+#define DID_PTL_H_SKU3	0xb002
+
 static int get_mchbar(struct pci_dev *pdev, u64 *mchbar)
 {
 	union  {
@@ -605,6 +610,9 @@ static const struct pci_device_id igen6_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, DID_ARL_UH_SKU1), (kernel_ulong_t)&mtl_p_cfg },
 	{ PCI_VDEVICE(INTEL, DID_ARL_UH_SKU2), (kernel_ulong_t)&mtl_p_cfg },
 	{ PCI_VDEVICE(INTEL, DID_ARL_UH_SKU3), (kernel_ulong_t)&mtl_p_cfg },
+	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU1), (kernel_ulong_t)&mtl_p_cfg },
+	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU2), (kernel_ulong_t)&mtl_p_cfg },
+	{ PCI_VDEVICE(INTEL, DID_PTL_H_SKU3), (kernel_ulong_t)&mtl_p_cfg },
 	{ },
 };
 MODULE_DEVICE_TABLE(pci, igen6_pci_tbl);
@@ -1170,6 +1178,20 @@ static int igen6_pci_setup(struct pci_dev *pdev, u64 *mchbar)
 	return -ENODEV;
 }
 
+static void igen6_check(struct mem_ctl_info *mci)
+{
+	struct igen6_imc *imc = mci->pvt_info;
+	u64 ecclog;
+
+	/* errsts_clear() isn't NMI-safe. Delay it in the IRQ context */
+	ecclog = ecclog_read_and_clear(imc);
+	if (!ecclog)
+		return;
+
+	if (!ecclog_gen_pool_add(imc->mc, ecclog))
+		irq_work_queue(&ecclog_irq_work);
+}
+
 static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev)
 {
 	struct edac_mc_layer layers[2];
@@ -1211,6 +1233,8 @@ static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev)
 	mci->edac_cap = EDAC_FLAG_SECDED;
 	mci->mod_name = EDAC_MOD_STR;
 	mci->dev_name = pci_name(pdev);
+	if (edac_op_state == EDAC_OPSTATE_POLL)
+		mci->edac_check = igen6_check;
 	mci->pvt_info = &igen6_pvt->imc[mc];
 
 	imc = mci->pvt_info;
@@ -1245,6 +1269,7 @@ static int igen6_register_mci(int mc, u64 mchbar, struct pci_dev *pdev)
 	imc->mci = mci;
 	return 0;
 fail3:
+	mci->pvt_info = NULL;
 	kfree(mci->ctl_name);
 fail2:
 	edac_mc_free(mci);
@@ -1269,6 +1294,7 @@ static void igen6_unregister_mcis(void)
 
 		edac_mc_del_mc(mci->pdev);
 		kfree(mci->ctl_name);
+		mci->pvt_info = NULL;
 		edac_mc_free(mci);
 		iounmap(imc->window);
 	}
@@ -1348,6 +1374,25 @@ static void unregister_err_handler(void)
 	unregister_nmi_handler(NMI_SERR, IGEN6_NMI_NAME);
 }
 
+static void opstate_set(struct res_config *cfg, const struct pci_device_id *ent)
+{
+	/*
+	 * Quirk: Certain SoCs' error reporting interrupts don't work.
+	 *        Force polling mode for them to ensure that memory error
+	 *        events can be handled.
+	 */
+	if (ent->device == DID_ADL_N_SKU4) {
+		edac_op_state = EDAC_OPSTATE_POLL;
+		return;
+	}
+
+	/* Set the mode according to the configuration data. */
+	if (cfg->machine_check)
+		edac_op_state = EDAC_OPSTATE_INT;
+	else
+		edac_op_state = EDAC_OPSTATE_NMI;
+}
+
 static int igen6_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
 	u64 mchbar;
@@ -1365,6 +1410,8 @@ static int igen6_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (rc)
 		goto fail;
 
+	opstate_set(res_cfg, ent);
+
 	for (i = 0; i < res_cfg->num_imc; i++) {
 		rc = igen6_register_mci(i, mchbar, pdev);
 		if (rc)
@@ -1448,8 +1495,6 @@ static int __init igen6_init(void)
 	if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR)))
 		return -EBUSY;
 
-	edac_op_state = EDAC_OPSTATE_NMI;
-
 	rc = pci_register_driver(&igen6_driver);
 	if (rc)
 		return rc;
diff --git a/drivers/edac/layerscape_edac.c b/drivers/edac/layerscape_edac.c
index 0d42c1238908..9a0c92ebbc3c 100644
--- a/drivers/edac/layerscape_edac.c
+++ b/drivers/edac/layerscape_edac.c
@@ -21,6 +21,7 @@
 
 static const struct of_device_id fsl_ddr_mc_err_of_match[] = {
 	{ .compatible = "fsl,qoriq-memory-controller", },
+	{ .compatible = "nxp,imx9-memory-controller", .data = (void *)TYPE_IMX9, },
 	{},
 };
 MODULE_DEVICE_TABLE(of, fsl_ddr_mc_err_of_match);
diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index 85713646957b..6cf17af7d911 100644
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -47,6 +47,7 @@ static skx_show_retry_log_f skx_show_retry_rd_err_log;
 static u64 skx_tolm, skx_tohm;
 static LIST_HEAD(dev_edac_list);
 static bool skx_mem_cfg_2lm;
+static struct res_config *skx_res_cfg;
 
 int skx_adxl_get(void)
 {
@@ -119,7 +120,7 @@ void skx_adxl_put(void)
 }
 EXPORT_SYMBOL_GPL(skx_adxl_put);
 
-static bool skx_adxl_decode(struct decoded_addr *res, bool error_in_1st_level_mem)
+static bool skx_adxl_decode(struct decoded_addr *res, enum error_source err_src)
 {
 	struct skx_dev *d;
 	int i, len = 0;
@@ -135,8 +136,24 @@ static bool skx_adxl_decode(struct decoded_addr *res, bool error_in_1st_level_me
 		return false;
 	}
 
+	/*
+	 * GNR with a Flat2LM memory configuration may mistakenly classify
+	 * a near-memory error(DDR5) as a far-memory error(CXL), resulting
+	 * in the incorrect selection of decoded ADXL components.
+	 * To address this, prefetch the decoded far-memory controller ID
+	 * and adjust the error source to near-memory if the far-memory
+	 * controller ID is invalid.
+	 */
+	if (skx_res_cfg && skx_res_cfg->type == GNR && err_src == ERR_SRC_2LM_FM) {
+		res->imc = (int)adxl_values[component_indices[INDEX_MEMCTRL]];
+		if (res->imc == -1) {
+			err_src = ERR_SRC_2LM_NM;
+			edac_dbg(0, "Adjust the error source to near-memory.\n");
+		}
+	}
+
 	res->socket  = (int)adxl_values[component_indices[INDEX_SOCKET]];
-	if (error_in_1st_level_mem) {
+	if (err_src == ERR_SRC_2LM_NM) {
 		res->imc     = (adxl_nm_bitmap & BIT_NM_MEMCTRL) ?
 			       (int)adxl_values[component_indices[INDEX_NM_MEMCTRL]] : -1;
 		res->channel = (adxl_nm_bitmap & BIT_NM_CHANNEL) ?
@@ -191,6 +208,12 @@ void skx_set_mem_cfg(bool mem_cfg_2lm)
 }
 EXPORT_SYMBOL_GPL(skx_set_mem_cfg);
 
+void skx_set_res_cfg(struct res_config *cfg)
+{
+	skx_res_cfg = cfg;
+}
+EXPORT_SYMBOL_GPL(skx_set_res_cfg);
+
 void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log)
 {
 	driver_decode = decode;
@@ -620,31 +643,27 @@ static void skx_mce_output_error(struct mem_ctl_info *mci,
 			     optype, skx_msg);
 }
 
-static bool skx_error_in_1st_level_mem(const struct mce *m)
+static enum error_source skx_error_source(const struct mce *m)
 {
-	u32 errcode;
+	u32 errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK;
+
+	if (errcode != MCACOD_MEM_CTL_ERR && errcode != MCACOD_EXT_MEM_ERR)
+		return ERR_SRC_NOT_MEMORY;
 
 	if (!skx_mem_cfg_2lm)
-		return false;
+		return ERR_SRC_1LM;
 
-	errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK;
+	if (errcode == MCACOD_EXT_MEM_ERR)
+		return ERR_SRC_2LM_NM;
 
-	return errcode == MCACOD_EXT_MEM_ERR;
-}
-
-static bool skx_error_in_mem(const struct mce *m)
-{
-	u32 errcode;
-
-	errcode = GET_BITFIELD(m->status, 0, 15) & MCACOD_MEM_ERR_MASK;
-
-	return (errcode == MCACOD_MEM_CTL_ERR || errcode == MCACOD_EXT_MEM_ERR);
+	return ERR_SRC_2LM_FM;
 }
 
 int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
 			void *data)
 {
 	struct mce *mce = (struct mce *)data;
+	enum error_source err_src;
 	struct decoded_addr res;
 	struct mem_ctl_info *mci;
 	char *type;
@@ -652,8 +671,10 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
 	if (mce->kflags & MCE_HANDLED_CEC)
 		return NOTIFY_DONE;
 
+	err_src = skx_error_source(mce);
+
 	/* Ignore unless this is memory related with an address */
-	if (!skx_error_in_mem(mce) || !(mce->status & MCI_STATUS_ADDRV))
+	if (err_src == ERR_SRC_NOT_MEMORY || !(mce->status & MCI_STATUS_ADDRV))
 		return NOTIFY_DONE;
 
 	memset(&res, 0, sizeof(res));
@@ -667,7 +688,7 @@ int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
 	/* Try driver decoder first */
 	if (!(driver_decode && driver_decode(&res))) {
 		/* Then try firmware decoder (ACPI DSM methods) */
-		if (!(adxl_component_count && skx_adxl_decode(&res, skx_error_in_1st_level_mem(mce))))
+		if (!(adxl_component_count && skx_adxl_decode(&res, err_src)))
 			return NOTIFY_DONE;
 	}
 
diff --git a/drivers/edac/skx_common.h b/drivers/edac/skx_common.h
index f945c1bf5ca4..54bba8a62f72 100644
--- a/drivers/edac/skx_common.h
+++ b/drivers/edac/skx_common.h
@@ -146,6 +146,13 @@ enum {
 	INDEX_MAX
 };
 
+enum error_source {
+	ERR_SRC_1LM,
+	ERR_SRC_2LM_NM,
+	ERR_SRC_2LM_FM,
+	ERR_SRC_NOT_MEMORY,
+};
+
 #define BIT_NM_MEMCTRL	BIT_ULL(INDEX_NM_MEMCTRL)
 #define BIT_NM_CHANNEL	BIT_ULL(INDEX_NM_CHANNEL)
 #define BIT_NM_DIMM	BIT_ULL(INDEX_NM_DIMM)
@@ -234,6 +241,7 @@ int skx_adxl_get(void);
 void skx_adxl_put(void);
 void skx_set_decode(skx_decode_f decode, skx_show_retry_log_f show_retry_log);
 void skx_set_mem_cfg(bool mem_cfg_2lm);
+void skx_set_res_cfg(struct res_config *cfg);
 
 int skx_get_src_id(struct skx_dev *d, int off, u8 *id);
 int skx_get_node_id(struct skx_dev *d, u8 *id);
diff --git a/drivers/ras/amd/atl/access.c b/drivers/ras/amd/atl/access.c
index ee4661ed28ba..c2334f8f9add 100644
--- a/drivers/ras/amd/atl/access.c
+++ b/drivers/ras/amd/atl/access.c
@@ -70,12 +70,16 @@ static int __df_indirect_read(u16 node, u8 func, u16 reg, u8 instance_id, u32 *l
 	u32 ficaa = 0;
 
 	node = get_accessible_node(node);
-	if (node >= amd_nb_num())
+	if (node >= amd_nb_num()) {
+		pr_debug("Node %u is out of bounds\n", node);
 		goto out;
+	}
 
 	F4 = node_to_amd_nb(node)->link;
-	if (!F4)
+	if (!F4) {
+		pr_debug("DF function 4 not found\n");
 		goto out;
+	}
 
 	/* Enable instance-specific access. */
 	if (instance_id != DF_BROADCAST) {