Merge tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp

Pull EDAC updates from Borislav Petkov:

 - Support for ZynqMP DDR controller support to synopsys_edac along with
   a driver cleanup and generalization for the addition of support for
   the new IP. (Manish Narani)

 - Removal of the /sys/bus/edac devices hierarchy. This enabled us to
   get rid of the silly memory controllers maximum number notion. (Tony
   Luck and Borislav Petkov)

 - skx_edac improvements and fixes. (Qiuxu Zhuo and Tony Luck)

 - The usual garden variety of small cleanups and fixes.

* tag 'edac_for_4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: (25 commits)
  EDAC, fsl_ddr: Add LS1021A to the list of supported hardware
  EDAC, i5000: Remove set but not used local variables
  MAINTAINERS, EDAC: Drop bouncing email
  EDAC, i82975x: Fix spelling mistake "reserverd" -> "reserved"
  EDAC, fsl: Move error injection under CONFIG_EDAC_DEBUG
  EDAC, skx: Let EDAC core show the decoded result for debugfs
  EDAC, skx: Move debugfs node under EDAC's hierarchy
  EDAC, skx: Prepend hex formatting with '0x'
  EDAC, skx: Fix function calling order in skx_exit()
  EDAC: Drop per-memory controller buses
  EDAC: Don't add devices under /sys/bus/edac
  EDAC: Fix indentation issues in several EDAC drivers
  EDAC, skx: Fix randconfig builds in a better way
  EDAC, i82975x: Remove set but not used variable dtype
  EDAC, qcom_edac: Remove irq_handled local variable
  EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller
  EDAC, synopsys: Add ECC support for ZynqMP DDR controller
  EDAC, synopsys: Add macro defines for ZynqMP DDRC
  dt: bindings: Document ZynqMP DDRC in Synopsys documentation
  EDAC, synopsys: Add error handling for the of_device_get_match_data() result
  ...

Documentation/devicetree/bindings/memory-controllers/synopsys.txt

 Binding for Synopsys IntelliDDR Multi Protocol Memory Controller
 
-This controller has an optional ECC support in half-bus width (16-bit)
-configuration. The ECC controller corrects one bit error and detects
-two bit errors.
+The ZynqMP DDR ECC controller has an optional ECC support in 64-bit and 32-bit
+bus width configurations.
+
+The Zynq DDR ECC controller has an optional ECC support in half-bus width
+(16-bit) configuration.
+
+These both ECC controllers correct single bit ECC errors and detect double bit
+ECC errors.
 
 Required properties:
- - compatible: Should be 'xlnx,zynq-ddrc-a05'
- - reg: Base address and size of the controllers memory area
+ - compatible: One of:
+	- 'xlnx,zynq-ddrc-a05' : Zynq DDR ECC controller
+	- 'xlnx,zynqmp-ddrc-2.40a' : ZynqMP DDR ECC controller
+ - reg: Should contain DDR controller registers location and length.
+
+Required properties for "xlnx,zynqmp-ddrc-2.40a":
+ - interrupts: Property with a value describing the interrupt number.
 
 Example:
 	memory-controller@f8006000 {
 		compatible = "xlnx,zynq-ddrc-a05";
 		reg = <0xf8006000 0x1000>;
 	};
+
+	mc: memory-controller@fd070000 {
+		compatible = "xlnx,zynqmp-ddrc-2.40a";
+		reg = <0x0 0xfd070000 0x0 0x30000>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 112 4>;
+	};

MAINTAINERS

@@ -5445,7 +5445,6 @@ S:	Maintained
 F:	drivers/edac/i82443bxgx_edac.c
 
 EDAC-I82975X
-M:	Ranganathan Desikan <ravi@jetztechnologies.com>
 M:	"Arvind R." <arvino55@gmail.com>
 L:	linux-edac@vger.kernel.org
 S:	Maintained

drivers/edac/Kconfig

@@ -231,10 +231,10 @@ config EDAC_SBRIDGE
 
 config EDAC_SKX
 	tristate "Intel Skylake server Integrated MC"
-	depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG
+	depends on PCI && X86_64 && X86_MCE_INTEL && PCI_MMCONFIG && ACPI
 	depends on ACPI_NFIT || !ACPI_NFIT # if ACPI_NFIT=m, EDAC_SKX can't be y
 	select DMI
-	select ACPI_ADXL if ACPI
+	select ACPI_ADXL
 	help
 	  Support for error detection and correction the Intel
 	  Skylake server Integrated Memory Controllers. If your
@@ -442,7 +442,7 @@ config EDAC_ALTERA_SDMMC
 
 config EDAC_SYNOPSYS
 	tristate "Synopsys DDR Memory Controller"
-	depends on ARCH_ZYNQ
+	depends on ARCH_ZYNQ || ARCH_ZYNQMP
 	help
 	  Support for error detection and correction on the Synopsys DDR
 	  memory controller.

drivers/edac/e752x_edac.c

@@ -1446,8 +1446,8 @@ static int __init e752x_init(void)
 
 	edac_dbg(3, "\n");
 
-       /* Ensure that the OPSTATE is set correctly for POLL or NMI */
-       opstate_init();
+	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
+	opstate_init();
 
 	pci_rc = pci_register_driver(&e752x_driver);
 	return (pci_rc < 0) ? pci_rc : 0;

drivers/edac/edac_mc.c

@@ -55,8 +55,6 @@ static LIST_HEAD(mc_devices);
  */
 static const char *edac_mc_owner;
 
-static struct bus_type mc_bus[EDAC_MAX_MCS];
-
 int edac_get_report_status(void)
 {
 	return edac_report;
@@ -716,11 +714,6 @@ int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
 	int ret = -EINVAL;
 	edac_dbg(0, "\n");
 
-	if (mci->mc_idx >= EDAC_MAX_MCS) {
-		pr_warn_once("Too many memory controllers: %d\n", mci->mc_idx);
-		return -ENODEV;
-	}
-
 #ifdef CONFIG_EDAC_DEBUG
 	if (edac_debug_level >= 3)
 		edac_mc_dump_mci(mci);
@@ -760,7 +753,7 @@ int edac_mc_add_mc_with_groups(struct mem_ctl_info *mci,
 	/* set load time so that error rate can be tracked */
 	mci->start_time = jiffies;
 
-	mci->bus = &mc_bus[mci->mc_idx];
+	mci->bus = edac_get_sysfs_subsys();
 
 	if (edac_create_sysfs_mci_device(mci, groups)) {
 		edac_mc_printk(mci, KERN_WARNING,

drivers/edac/edac_mc_sysfs.c

@@ -405,7 +405,6 @@ static int edac_create_csrow_object(struct mem_ctl_info *mci,
 				    struct csrow_info *csrow, int index)
 {
 	csrow->dev.type = &csrow_attr_type;
-	csrow->dev.bus = mci->bus;
 	csrow->dev.groups = csrow_dev_groups;
 	device_initialize(&csrow->dev);
 	csrow->dev.parent = &mci->dev;
@@ -636,7 +635,6 @@ static int edac_create_dimm_object(struct mem_ctl_info *mci,
 	dimm->mci = mci;
 
 	dimm->dev.type = &dimm_attr_type;
-	dimm->dev.bus = mci->bus;
 	device_initialize(&dimm->dev);
 
 	dimm->dev.parent = &mci->dev;
@@ -914,33 +912,13 @@ static const struct device_type mci_attr_type = {
 int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
 				 const struct attribute_group **groups)
 {
-	char *name;
 	int i, err;
 
-	/*
-	 * The memory controller needs its own bus, in order to avoid
-	 * namespace conflicts at /sys/bus/edac.
-	 */
-	name = kasprintf(GFP_KERNEL, "mc%d", mci->mc_idx);
-	if (!name)
-		return -ENOMEM;
-
-	mci->bus->name = name;
-
-	edac_dbg(0, "creating bus %s\n", mci->bus->name);
-
-	err = bus_register(mci->bus);
-	if (err < 0) {
-		kfree(name);
-		return err;
-	}
-
 	/* get the /sys/devices/system/edac subsys reference */
 	mci->dev.type = &mci_attr_type;
 	device_initialize(&mci->dev);
 
 	mci->dev.parent = mci_pdev;
-	mci->dev.bus = mci->bus;
 	mci->dev.groups = groups;
 	dev_set_name(&mci->dev, "mc%d", mci->mc_idx);
 	dev_set_drvdata(&mci->dev, mci);
@@ -950,7 +928,7 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
 	err = device_add(&mci->dev);
 	if (err < 0) {
 		edac_dbg(1, "failure: create device %s\n", dev_name(&mci->dev));
-		goto fail_unregister_bus;
+		goto out;
 	}
 
 	/*
@@ -998,10 +976,8 @@ int edac_create_sysfs_mci_device(struct mem_ctl_info *mci,
 		device_unregister(&dimm->dev);
 	}
 	device_unregister(&mci->dev);
-fail_unregister_bus:
-	bus_unregister(mci->bus);
-	kfree(name);
 
+out:
 	return err;
 }
 
@@ -1032,13 +1008,8 @@ void edac_remove_sysfs_mci_device(struct mem_ctl_info *mci)
 
 void edac_unregister_sysfs(struct mem_ctl_info *mci)
 {
-	struct bus_type *bus = mci->bus;
-	const char *name = mci->bus->name;
-
 	edac_dbg(1, "Unregistering device %s\n", dev_name(&mci->dev));
 	device_unregister(&mci->dev);
-	bus_unregister(bus);
-	kfree(name);
 }
 
 static void mc_attr_release(struct device *dev)

drivers/edac/fsl_ddr_edac.c

@@ -2,8 +2,8 @@
  * Freescale Memory Controller kernel module
  *
  * Support Power-based SoCs including MPC85xx, MPC86xx, MPC83xx and
- * ARM-based Layerscape SoCs including LS2xxx. Originally split
- * out from mpc85xx_edac EDAC driver.
+ * ARM-based Layerscape SoCs including LS2xxx and LS1021A. Originally
+ * split out from mpc85xx_edac EDAC driver.
  *
  * Parts Copyrighted (c) 2013 by Freescale Semiconductor, Inc.
  *
@@ -51,6 +51,7 @@ static inline void ddr_out32(void __iomem *addr, u32 value)
 		iowrite32be(value, addr);
 }
 
+#ifdef CONFIG_EDAC_DEBUG
 /************************ MC SYSFS parts ***********************************/
 
 #define to_mci(k) container_of(k, struct mem_ctl_info, dev)
@@ -151,11 +152,14 @@ static DEVICE_ATTR(inject_data_lo, S_IRUGO | S_IWUSR,
 		   fsl_mc_inject_data_lo_show, fsl_mc_inject_data_lo_store);
 static DEVICE_ATTR(inject_ctrl, S_IRUGO | S_IWUSR,
 		   fsl_mc_inject_ctrl_show, fsl_mc_inject_ctrl_store);
+#endif /* CONFIG_EDAC_DEBUG */
 
 static struct attribute *fsl_ddr_dev_attrs[] = {
+#ifdef CONFIG_EDAC_DEBUG
 	&dev_attr_inject_data_hi.attr,
 	&dev_attr_inject_data_lo.attr,
 	&dev_attr_inject_ctrl.attr,
+#endif
 	NULL
 };
 

drivers/edac/fsl_ddr_edac.h

@@ -2,8 +2,8 @@
  * Freescale Memory Controller kernel module
  *
  * Support  Power-based SoCs including MPC85xx, MPC86xx, MPC83xx and
- * ARM-based Layerscape SoCs including LS2xxx. Originally split
- * out from mpc85xx_edac EDAC driver.
+ * ARM-based Layerscape SoCs including LS2xxx and LS1021A. Originally
+ * split out from mpc85xx_edac EDAC driver.
  *
  * Author: Dave Jiang <djiang@mvista.com>
  *

drivers/edac/i3000_edac.c

@@ -508,8 +508,8 @@ static int __init i3000_init(void)
 
 	edac_dbg(3, "MC:\n");
 
-       /* Ensure that the OPSTATE is set correctly for POLL or NMI */
-       opstate_init();
+	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
+	opstate_init();
 
 	pci_rc = pci_register_driver(&i3000_driver);
 	if (pci_rc < 0)

drivers/edac/i5000_edac.c

@@ -1134,8 +1134,6 @@ static void i5000_get_mc_regs(struct mem_ctl_info *mci)
 	u32 actual_tolm;
 	u16 limit;
 	int slot_row;
-	int maxch;
-	int maxdimmperch;
 	int way0, way1;
 
 	pvt = mci->pvt_info;
@@ -1145,9 +1143,6 @@ static void i5000_get_mc_regs(struct mem_ctl_info *mci)
 	pci_read_config_dword(pvt->system_address, AMBASE + sizeof(u32),
 			&pvt->u.ambase_top);
 
-	maxdimmperch = pvt->maxdimmperch;
-	maxch = pvt->maxch;
-
 	edac_dbg(2, "AMBASE= 0x%lx  MAXCH= %d  MAX-DIMM-Per-CH= %d\n",
 		 (long unsigned int)pvt->ambase, pvt->maxch, pvt->maxdimmperch);
 
@@ -1253,7 +1248,7 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
 {
 	struct i5000_pvt *pvt;
 	struct dimm_info *dimm;
-	int empty, channel_count;
+	int empty;
 	int max_csrows;
 	int mtr;
 	int csrow_megs;
@@ -1261,8 +1256,6 @@ static int i5000_init_csrows(struct mem_ctl_info *mci)
 	int slot;
 
 	pvt = mci->pvt_info;
-
-	channel_count = pvt->maxch;
 	max_csrows = pvt->maxdimmperch * 2;
 
 	empty = 1;		/* Assume NO memory */
@@ -1559,8 +1552,8 @@ static int __init i5000_init(void)
 
 	edac_dbg(2, "MC:\n");
 
-       /* Ensure that the OPSTATE is set correctly for POLL or NMI */
-       opstate_init();
+	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
+	opstate_init();
 
 	pci_rc = pci_register_driver(&i5000_driver);
 

drivers/edac/i7core_edac.c

@@ -724,7 +724,7 @@ static ssize_t i7core_inject_type_store(struct device *dev,
 					const char *data, size_t count)
 {
 	struct mem_ctl_info *mci = to_mci(dev);
-struct i7core_pvt *pvt = mci->pvt_info;
+	struct i7core_pvt *pvt = mci->pvt_info;
 	unsigned long value;
 	int rc;
 

drivers/edac/i82975x_edac.c

@@ -104,7 +104,7 @@ NOTE: Only ONE of the three must be enabled
 					 *
 					 * 31:14 Base Addr of 16K memory-mapped
 					 *	configuration space
-					 * 13:1  reserverd
+					 * 13:1  reserved
 					 *  0    mem-mapped config space enable
 					 */
 
@@ -358,14 +358,6 @@ static int dual_channel_active(void __iomem *mch_window)
 	return dualch;
 }
 
-static enum dev_type i82975x_dram_type(void __iomem *mch_window, int rank)
-{
-	/*
-	 * ECC is possible on i92975x ONLY with DEV_X8
-	 */
-	return DEV_X8;
-}
-
 static void i82975x_init_csrows(struct mem_ctl_info *mci,
 		struct pci_dev *pdev, void __iomem *mch_window)
 {
@@ -375,7 +367,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
 	u32 cumul_size, nr_pages;
 	int index, chan;
 	struct dimm_info *dimm;
-	enum dev_type dtype;
 
 	last_cumul_size = 0;
 
@@ -413,7 +404,6 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
 		 *   [0-7] for single-channel; i.e. csrow->nr_channels = 1
 		 *   [0-3] for dual-channel; i.e. csrow->nr_channels = 2
 		 */
-		dtype = i82975x_dram_type(mch_window, index);
 		for (chan = 0; chan < csrow->nr_channels; chan++) {
 			dimm = mci->csrows[index]->channels[chan]->dimm;
 
@@ -423,7 +413,10 @@ static void i82975x_init_csrows(struct mem_ctl_info *mci,
 				 (chan == 0) ? 'A' : 'B',
 				 index);
 			dimm->grain = 1 << 7;	/* 128Byte cache-line resolution */
-			dimm->dtype = i82975x_dram_type(mch_window, index);
+
+			/* ECC is possible on i92975x ONLY with DEV_X8.  */
+			dimm->dtype = DEV_X8;
+
 			dimm->mtype = MEM_DDR2; /* I82975x supports only DDR2 */
 			dimm->edac_mode = EDAC_SECDED; /* only supported */
 		}
@@ -655,8 +648,8 @@ static int __init i82975x_init(void)
 
 	edac_dbg(3, "\n");
 
-       /* Ensure that the OPSTATE is set correctly for POLL or NMI */
-       opstate_init();
+	/* Ensure that the OPSTATE is set correctly for POLL or NMI */
+	opstate_init();
 
 	pci_rc = pci_register_driver(&i82975x_driver);
 	if (pci_rc < 0)

drivers/edac/qcom_edac.c

@@ -292,7 +292,6 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
 	struct llcc_drv_data *drv = edac_dev_ctl->pvt_info;
 	irqreturn_t irq_rc = IRQ_NONE;
 	u32 drp_error, trp_error, i;
-	bool irq_handled;
 	int ret;
 
 	/* Iterate over the banks and look for Tag RAM or Data RAM errors */
@@ -311,7 +310,7 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
 			ret = dump_syn_reg(edev_ctl, LLCC_DRAM_UE, i);
 		}
 		if (!ret)
-			irq_handled = true;
+			irq_rc = IRQ_HANDLED;
 
 		ret = regmap_read(drv->regmap,
 				  drv->offsets[i] + TRP_INTERRUPT_0_STATUS,
@@ -327,12 +326,9 @@ llcc_ecc_irq_handler(int irq, void *edev_ctl)
 			ret = dump_syn_reg(edev_ctl, LLCC_TRAM_UE, i);
 		}
 		if (!ret)
-			irq_handled = true;
+			irq_rc = IRQ_HANDLED;
 	}
 
-	if (irq_handled)
-		irq_rc = IRQ_HANDLED;
-
 	return irq_rc;
 }
 

drivers/edac/skx_edac.c

@@ -209,7 +209,7 @@ static int get_all_bus_mappings(void)
 		d->bus[1] =  GET_BITFIELD(reg, 8, 15);
 		d->bus[2] =  GET_BITFIELD(reg, 16, 23);
 		d->bus[3] =  GET_BITFIELD(reg, 24, 31);
-		edac_dbg(2, "busses: %x, %x, %x, %x\n",
+		edac_dbg(2, "busses: 0x%x, 0x%x, 0x%x, 0x%x\n",
 			 d->bus[0], d->bus[1], d->bus[2], d->bus[3]);
 		list_add_tail(&d->list, &skx_edac_list);
 		skx_num_sockets++;
@@ -245,8 +245,8 @@ static int get_all_munits(const struct munit *m)
 
 		/* Be sure that the device is enabled */
 		if (unlikely(pci_enable_device(pdev) < 0)) {
-			skx_printk(KERN_ERR,
-				"Couldn't enable %04x:%04x\n", PCI_VENDOR_ID_INTEL, m->did);
+			skx_printk(KERN_ERR, "Couldn't enable device %04x:%04x\n",
+				   PCI_VENDOR_ID_INTEL, m->did);
 			goto fail;
 		}
 
@@ -323,7 +323,7 @@ static int get_dimm_attr(u32 reg, int lobit, int hibit, int add, int minval,
 	u32 val = GET_BITFIELD(reg, lobit, hibit);
 
 	if (val < minval || val > maxval) {
-		edac_dbg(2, "bad %s = %d (raw=%x)\n", name, val, reg);
+		edac_dbg(2, "bad %s = %d (raw=0x%x)\n", name, val, reg);
 		return -EINVAL;
 	}
 	return val + add;
@@ -368,7 +368,7 @@ static int skx_get_hi_lo(void)
 	skx_tohm |= (u64)reg << 32;
 
 	pci_dev_put(pdev);
-	edac_dbg(2, "tolm=%llx tohm=%llx\n", skx_tolm, skx_tohm);
+	edac_dbg(2, "tolm=0x%llx tohm=0x%llx\n", skx_tolm, skx_tohm);
 
 	return 0;
 }
@@ -389,7 +389,7 @@ static int get_dimm_info(u32 mtr, u32 amap, struct dimm_info *dimm,
 	size = ((1ull << (rows + cols + ranks)) * banks) >> (20 - 3);
 	npages = MiB_TO_PAGES(size);
 
-	edac_dbg(0, "mc#%d: channel %d, dimm %d, %lld MiB (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
+	edac_dbg(0, "mc#%d: channel %d, dimm %d, %lld MiB (%d pages) bank: %d, rank: %d, row: 0x%#x, col: 0x%#x\n",
 		 imc->mc, chan, dimmno, size, npages,
 		 banks, 1 << ranks, rows, cols);
 
@@ -430,18 +430,18 @@ static int get_nvdimm_info(struct dimm_info *dimm, struct skx_imc *imc,
 	}
 
 	if (smbios_handle < 0) {
-		skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=%x\n", dev_handle);
+		skx_printk(KERN_ERR, "Can't find handle for NVDIMM ADR=0x%x\n", dev_handle);
 		goto unknown_size;
 	}
 
 	if (flags & ACPI_NFIT_MEM_MAP_FAILED) {
-		skx_printk(KERN_ERR, "NVDIMM ADR=%x is not mapped\n", dev_handle);
+		skx_printk(KERN_ERR, "NVDIMM ADR=0x%x is not mapped\n", dev_handle);
 		goto unknown_size;
 	}
 
 	size = dmi_memdev_size(smbios_handle);
 	if (size == ~0ull)
-		skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=%x/SMBIOS=%x\n",
+		skx_printk(KERN_ERR, "Can't find size for NVDIMM ADR=0x%x/SMBIOS=0x%x\n",
 			   dev_handle, smbios_handle);
 
 unknown_size:
@@ -616,7 +616,7 @@ static bool skx_sad_decode(struct decoded_addr *res)
 
 	/* Simple sanity check for I/O space or out of range */
 	if (addr >= skx_tohm || (addr >= skx_tolm && addr < BIT_ULL(32))) {
-		edac_dbg(0, "Address %llx out of range\n", addr);
+		edac_dbg(0, "Address 0x%llx out of range\n", addr);
 		return false;
 	}
 
@@ -631,7 +631,7 @@ static bool skx_sad_decode(struct decoded_addr *res)
 		}
 		prev_limit = limit + 1;
 	}
-	edac_dbg(0, "No SAD entry for %llx\n", addr);
+	edac_dbg(0, "No SAD entry for 0x%llx\n", addr);
 	return false;
 
 sad_found:
@@ -709,7 +709,7 @@ static bool skx_sad_decode(struct decoded_addr *res)
 	res->imc = GET_BITFIELD(d->mcroute, lchan * 3, lchan * 3 + 2);
 	res->channel = GET_BITFIELD(d->mcroute, lchan * 2 + 18, lchan * 2 + 19);
 
-	edac_dbg(2, "%llx: socket=%d imc=%d channel=%d\n",
+	edac_dbg(2, "0x%llx: socket=%d imc=%d channel=%d\n",
 		 res->addr, res->socket, res->imc, res->channel);
 	return true;
 }
@@ -756,7 +756,7 @@ static bool skx_tad_decode(struct decoded_addr *res)
 		if (SKX_TAD_BASE(base) <= res->addr && res->addr <= SKX_TAD_LIMIT(wayness))
 			goto tad_found;
 	}
-	edac_dbg(0, "No TAD entry for %llx\n", res->addr);
+	edac_dbg(0, "No TAD entry for 0x%llx\n", res->addr);
 	return false;
 
 tad_found:
@@ -784,7 +784,7 @@ static bool skx_tad_decode(struct decoded_addr *res)
 
 	res->chan_addr = channel_addr;
 
-	edac_dbg(2, "%llx: chan_addr=%llx sktways=%d chanways=%d\n",
+	edac_dbg(2, "0x%llx: chan_addr=0x%llx sktways=%d chanways=%d\n",
 		 res->addr, res->chan_addr, res->sktways, res->chanways);
 	return true;
 }
@@ -826,7 +826,7 @@ static bool skx_rir_decode(struct decoded_addr *res)
 		}
 		prev_limit = limit;
 	}
-	edac_dbg(0, "No RIR entry for %llx\n", res->addr);
+	edac_dbg(0, "No RIR entry for 0x%llx\n", res->addr);
 	return false;
 
 rir_found:
@@ -845,7 +845,7 @@ static bool skx_rir_decode(struct decoded_addr *res)
 	res->dimm = chan_rank / 4;
 	res->rank = chan_rank % 4;
 
-	edac_dbg(2, "%llx: dimm=%d rank=%d chan_rank=%d rank_addr=%llx\n",
+	edac_dbg(2, "0x%llx: dimm=%d rank=%d chan_rank=%d rank_addr=0x%llx\n",
 		 res->addr, res->dimm, res->rank,
 		 res->channel_rank, res->rank_address);
 	return true;
@@ -908,7 +908,7 @@ static bool skx_mad_decode(struct decoded_addr *r)
 	}
 	r->row &= (1u << dimm->rowbits) - 1;
 
-	edac_dbg(2, "%llx: row=%x col=%x bank_addr=%d bank_group=%d\n",
+	edac_dbg(2, "0x%llx: row=0x%x col=0x%x bank_addr=%d bank_group=%d\n",
 		 r->addr, r->row, r->column, r->bank_address,
 		 r->bank_group);
 	return true;
@@ -921,53 +921,6 @@ static bool skx_decode(struct decoded_addr *res)
 		skx_rir_decode(res) && skx_mad_decode(res);
 }
 
-#ifdef CONFIG_EDAC_DEBUG
-/*
- * Debug feature. Make /sys/kernel/debug/skx_edac_test/addr.
- * Write an address to this file to exercise the address decode
- * logic in this driver.
- */
-static struct dentry *skx_test;
-static u64 skx_fake_addr;
-
-static int debugfs_u64_set(void *data, u64 val)
-{
-	struct decoded_addr res;
-
-	res.addr = val;
-	skx_decode(&res);
-
-	return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
-
-static struct dentry *mydebugfs_create(const char *name, umode_t mode,
-				       struct dentry *parent, u64 *value)
-{
-	return debugfs_create_file(name, mode, parent, value, &fops_u64_wo);
-}
-
-static void setup_skx_debug(void)
-{
-	skx_test = debugfs_create_dir("skx_edac_test", NULL);
-	mydebugfs_create("addr", S_IWUSR, skx_test, &skx_fake_addr);
-}
-
-static void teardown_skx_debug(void)
-{
-	debugfs_remove_recursive(skx_test);
-}
-#else
-static void setup_skx_debug(void)
-{
-}
-
-static void teardown_skx_debug(void)
-{
-}
-#endif /*CONFIG_EDAC_DEBUG*/
-
 static bool skx_adxl_decode(struct decoded_addr *res)
 
 {
@@ -1069,13 +1022,13 @@ static void skx_mce_output_error(struct mem_ctl_info *mci,
 		}
 	}
 	if (adxl_component_count) {
-		snprintf(skx_msg, MSG_SIZE, "%s%s err_code:%04x:%04x %s",
+		snprintf(skx_msg, MSG_SIZE, "%s%s err_code:0x%04x:0x%04x %s",
 			 overflow ? " OVERFLOW" : "",
 			 (uncorrected_error && recoverable) ? " recoverable" : "",
 			 mscod, errcode, adxl_msg);
 	} else {
 		snprintf(skx_msg, MSG_SIZE,
-			 "%s%s err_code:%04x:%04x socket:%d imc:%d rank:%d bg:%d ba:%d row:%x col:%x",
+			 "%s%s err_code:0x%04x:0x%04x socket:%d imc:%d rank:%d bg:%d ba:%d row:0x%x col:0x%x",
 			 overflow ? " OVERFLOW" : "",
 			 (uncorrected_error && recoverable) ? " recoverable" : "",
 			 mscod, errcode,
@@ -1151,15 +1104,15 @@ static int skx_mce_check_error(struct notifier_block *nb, unsigned long val,
 
 	skx_mc_printk(mci, KERN_DEBUG, "HANDLING MCE MEMORY ERROR\n");
 
-	skx_mc_printk(mci, KERN_DEBUG, "CPU %d: Machine Check %s: %Lx "
+	skx_mc_printk(mci, KERN_DEBUG, "CPU %d: Machine Check %s: 0x%llx "
 			  "Bank %d: %016Lx\n", mce->extcpu, type,
 			  mce->mcgstatus, mce->bank, mce->status);
-	skx_mc_printk(mci, KERN_DEBUG, "TSC %llx ", mce->tsc);
-	skx_mc_printk(mci, KERN_DEBUG, "ADDR %llx ", mce->addr);
-	skx_mc_printk(mci, KERN_DEBUG, "MISC %llx ", mce->misc);
+	skx_mc_printk(mci, KERN_DEBUG, "TSC 0x%llx ", mce->tsc);
+	skx_mc_printk(mci, KERN_DEBUG, "ADDR 0x%llx ", mce->addr);
+	skx_mc_printk(mci, KERN_DEBUG, "MISC 0x%llx ", mce->misc);
 
-	skx_mc_printk(mci, KERN_DEBUG, "PROCESSOR %u:%x TIME %llu SOCKET "
-			  "%u APIC %x\n", mce->cpuvendor, mce->cpuid,
+	skx_mc_printk(mci, KERN_DEBUG, "PROCESSOR %u:0x%x TIME %llu SOCKET "
+			  "%u APIC 0x%x\n", mce->cpuvendor, mce->cpuid,
 			  mce->time, mce->socketid, mce->apicid);
 
 	skx_mce_output_error(mci, mce, &res);
@@ -1172,6 +1125,54 @@ static struct notifier_block skx_mce_dec = {
 	.priority	= MCE_PRIO_EDAC,
 };
 
+#ifdef CONFIG_EDAC_DEBUG
+/*
+ * Debug feature.
+ * Exercise the address decode logic by writing an address to
+ * /sys/kernel/debug/edac/skx_test/addr.
+ */
+static struct dentry *skx_test;
+
+static int debugfs_u64_set(void *data, u64 val)
+{
+	struct mce m;
+
+	pr_warn_once("Fake error to 0x%llx injected via debugfs\n", val);
+
+	memset(&m, 0, sizeof(m));
+	/* ADDRV + MemRd + Unknown channel */
+	m.status = MCI_STATUS_ADDRV + 0x90;
+	/* One corrected error */
+	m.status |= BIT_ULL(MCI_STATUS_CEC_SHIFT);
+	m.addr = val;
+	skx_mce_check_error(NULL, 0, &m);
+
+	return 0;
+}
+DEFINE_SIMPLE_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n");
+
+static void setup_skx_debug(void)
+{
+	skx_test = edac_debugfs_create_dir("skx_test");
+	if (!skx_test)
+		return;
+
+	if (!edac_debugfs_create_file("addr", 0200, skx_test,
+				      NULL, &fops_u64_wo)) {
+		debugfs_remove(skx_test);
+		skx_test = NULL;
+	}
+}
+
+static void teardown_skx_debug(void)
+{
+	debugfs_remove_recursive(skx_test);
+}
+#else
+static void setup_skx_debug(void) {}
+static void teardown_skx_debug(void) {}
+#endif /*CONFIG_EDAC_DEBUG*/
+
 static void skx_remove(void)
 {
 	int i, j;
@@ -1291,7 +1292,7 @@ static int __init skx_init(void)
 		if (rc < 0)
 			goto fail;
 		if (rc != m->per_socket * skx_num_sockets) {
-			edac_dbg(2, "Expected %d, got %d of %x\n",
+			edac_dbg(2, "Expected %d, got %d of 0x%x\n",
 				 m->per_socket * skx_num_sockets, rc, m->did);
 			rc = -ENODEV;
 			goto fail;
@@ -1339,11 +1340,11 @@ static void __exit skx_exit(void)
 {
 	edac_dbg(2, "\n");
 	mce_unregister_decode_chain(&skx_mce_dec);
-	skx_remove();
+	teardown_skx_debug();
 	if (nvdimm_count)
 		skx_adxl_put();
 	kfree(skx_msg);
-	teardown_skx_debug();
+	skx_remove();
 }
 
 module_init(skx_init);

drivers/edac/synopsys_edac.c

@@ -22,86 +22,259 @@
 #include <linux/edac.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include "edac_module.h"
 
 /* Number of cs_rows needed per memory controller */
-#define SYNPS_EDAC_NR_CSROWS	1
+#define SYNPS_EDAC_NR_CSROWS		1
 
 /* Number of channels per memory controller */
-#define SYNPS_EDAC_NR_CHANS	1
+#define SYNPS_EDAC_NR_CHANS		1
 
 /* Granularity of reported error in bytes */
-#define SYNPS_EDAC_ERR_GRAIN	1
+#define SYNPS_EDAC_ERR_GRAIN		1
 
-#define SYNPS_EDAC_MSG_SIZE	256
+#define SYNPS_EDAC_MSG_SIZE		256
 
-#define SYNPS_EDAC_MOD_STRING	"synps_edac"
-#define SYNPS_EDAC_MOD_VER	"1"
+#define SYNPS_EDAC_MOD_STRING		"synps_edac"
+#define SYNPS_EDAC_MOD_VER		"1"
 
 /* Synopsys DDR memory controller registers that are relevant to ECC */
-#define CTRL_OFST		0x0
-#define T_ZQ_OFST		0xA4
+#define CTRL_OFST			0x0
+#define T_ZQ_OFST			0xA4
 
 /* ECC control register */
-#define ECC_CTRL_OFST		0xC4
+#define ECC_CTRL_OFST			0xC4
 /* ECC log register */
-#define CE_LOG_OFST		0xC8
+#define CE_LOG_OFST			0xC8
 /* ECC address register */
-#define CE_ADDR_OFST		0xCC
+#define CE_ADDR_OFST			0xCC
 /* ECC data[31:0] register */
-#define CE_DATA_31_0_OFST	0xD0
+#define CE_DATA_31_0_OFST		0xD0
 
 /* Uncorrectable error info registers */
-#define UE_LOG_OFST		0xDC
-#define UE_ADDR_OFST		0xE0
-#define UE_DATA_31_0_OFST	0xE4
+#define UE_LOG_OFST			0xDC
+#define UE_ADDR_OFST			0xE0
+#define UE_DATA_31_0_OFST		0xE4
 
-#define STAT_OFST		0xF0
-#define SCRUB_OFST		0xF4
+#define STAT_OFST			0xF0
+#define SCRUB_OFST			0xF4
 
 /* Control register bit field definitions */
-#define CTRL_BW_MASK		0xC
-#define CTRL_BW_SHIFT		2
+#define CTRL_BW_MASK			0xC
+#define CTRL_BW_SHIFT			2
 
-#define DDRCTL_WDTH_16		1
-#define DDRCTL_WDTH_32		0
+#define DDRCTL_WDTH_16			1
+#define DDRCTL_WDTH_32			0
 
 /* ZQ register bit field definitions */
-#define T_ZQ_DDRMODE_MASK	0x2
+#define T_ZQ_DDRMODE_MASK		0x2
 
 /* ECC control register bit field definitions */
-#define ECC_CTRL_CLR_CE_ERR	0x2
-#define ECC_CTRL_CLR_UE_ERR	0x1
+#define ECC_CTRL_CLR_CE_ERR		0x2
+#define ECC_CTRL_CLR_UE_ERR		0x1
 
 /* ECC correctable/uncorrectable error log register definitions */
-#define LOG_VALID		0x1
-#define CE_LOG_BITPOS_MASK	0xFE
-#define CE_LOG_BITPOS_SHIFT	1
+#define LOG_VALID			0x1
+#define CE_LOG_BITPOS_MASK		0xFE
+#define CE_LOG_BITPOS_SHIFT		1
 
 /* ECC correctable/uncorrectable error address register definitions */
-#define ADDR_COL_MASK		0xFFF
-#define ADDR_ROW_MASK		0xFFFF000
-#define ADDR_ROW_SHIFT		12
-#define ADDR_BANK_MASK		0x70000000
-#define ADDR_BANK_SHIFT		28
+#define ADDR_COL_MASK			0xFFF
+#define ADDR_ROW_MASK			0xFFFF000
+#define ADDR_ROW_SHIFT			12
+#define ADDR_BANK_MASK			0x70000000
+#define ADDR_BANK_SHIFT			28
 
 /* ECC statistic register definitions */
-#define STAT_UECNT_MASK		0xFF
-#define STAT_CECNT_MASK		0xFF00
-#define STAT_CECNT_SHIFT	8
+#define STAT_UECNT_MASK			0xFF
+#define STAT_CECNT_MASK			0xFF00
+#define STAT_CECNT_SHIFT		8
 
 /* ECC scrub register definitions */
-#define SCRUB_MODE_MASK		0x7
-#define SCRUB_MODE_SECDED	0x4
+#define SCRUB_MODE_MASK			0x7
+#define SCRUB_MODE_SECDED		0x4
+
+/* DDR ECC Quirks */
+#define DDR_ECC_INTR_SUPPORT		BIT(0)
+#define DDR_ECC_DATA_POISON_SUPPORT	BIT(1)
+
+/* ZynqMP Enhanced DDR memory controller registers that are relevant to ECC */
+/* ECC Configuration Registers */
+#define ECC_CFG0_OFST			0x70
+#define ECC_CFG1_OFST			0x74
+
+/* ECC Status Register */
+#define ECC_STAT_OFST			0x78
+
+/* ECC Clear Register */
+#define ECC_CLR_OFST			0x7C
+
+/* ECC Error count Register */
+#define ECC_ERRCNT_OFST			0x80
+
+/* ECC Corrected Error Address Register */
+#define ECC_CEADDR0_OFST		0x84
+#define ECC_CEADDR1_OFST		0x88
+
+/* ECC Syndrome Registers */
+#define ECC_CSYND0_OFST			0x8C
+#define ECC_CSYND1_OFST			0x90
+#define ECC_CSYND2_OFST			0x94
+
+/* ECC Bit Mask0 Address Register */
+#define ECC_BITMASK0_OFST		0x98
+#define ECC_BITMASK1_OFST		0x9C
+#define ECC_BITMASK2_OFST		0xA0
+
+/* ECC UnCorrected Error Address Register */
+#define ECC_UEADDR0_OFST		0xA4
+#define ECC_UEADDR1_OFST		0xA8
+
+/* ECC Syndrome Registers */
+#define ECC_UESYND0_OFST		0xAC
+#define ECC_UESYND1_OFST		0xB0
+#define ECC_UESYND2_OFST		0xB4
+
+/* ECC Poison Address Reg */
+#define ECC_POISON0_OFST		0xB8
+#define ECC_POISON1_OFST		0xBC
+
+#define ECC_ADDRMAP0_OFFSET		0x200
+
+/* Control register bitfield definitions */
+#define ECC_CTRL_BUSWIDTH_MASK		0x3000
+#define ECC_CTRL_BUSWIDTH_SHIFT		12
+#define ECC_CTRL_CLR_CE_ERRCNT		BIT(2)
+#define ECC_CTRL_CLR_UE_ERRCNT		BIT(3)
+
+/* DDR Control Register width definitions  */
+#define DDRCTL_EWDTH_16			2
+#define DDRCTL_EWDTH_32			1
+#define DDRCTL_EWDTH_64			0
+
+/* ECC status register definitions */
+#define ECC_STAT_UECNT_MASK		0xF0000
+#define ECC_STAT_UECNT_SHIFT		16
+#define ECC_STAT_CECNT_MASK		0xF00
+#define ECC_STAT_CECNT_SHIFT		8
+#define ECC_STAT_BITNUM_MASK		0x7F
+
+/* DDR QOS Interrupt register definitions */
+#define DDR_QOS_IRQ_STAT_OFST		0x20200
+#define DDR_QOSUE_MASK			0x4
+#define	DDR_QOSCE_MASK			0x2
+#define	ECC_CE_UE_INTR_MASK		0x6
+#define DDR_QOS_IRQ_EN_OFST		0x20208
+#define DDR_QOS_IRQ_DB_OFST		0x2020C
+
+/* ECC Corrected Error Register Mask and Shifts*/
+#define ECC_CEADDR0_RW_MASK		0x3FFFF
+#define ECC_CEADDR0_RNK_MASK		BIT(24)
+#define ECC_CEADDR1_BNKGRP_MASK		0x3000000
+#define ECC_CEADDR1_BNKNR_MASK		0x70000
+#define ECC_CEADDR1_BLKNR_MASK		0xFFF
+#define ECC_CEADDR1_BNKGRP_SHIFT	24
+#define ECC_CEADDR1_BNKNR_SHIFT		16
+
+/* ECC Poison register shifts */
+#define ECC_POISON0_RANK_SHIFT		24
+#define ECC_POISON0_RANK_MASK		BIT(24)
+#define ECC_POISON0_COLUMN_SHIFT	0
+#define ECC_POISON0_COLUMN_MASK		0xFFF
+#define ECC_POISON1_BG_SHIFT		28
+#define ECC_POISON1_BG_MASK		0x30000000
+#define ECC_POISON1_BANKNR_SHIFT	24
+#define ECC_POISON1_BANKNR_MASK		0x7000000
+#define ECC_POISON1_ROW_SHIFT		0
+#define ECC_POISON1_ROW_MASK		0x3FFFF
+
+/* DDR Memory type defines */
+#define MEM_TYPE_DDR3			0x1
+#define MEM_TYPE_LPDDR3			0x8
+#define MEM_TYPE_DDR2			0x4
+#define MEM_TYPE_DDR4			0x10
+#define MEM_TYPE_LPDDR4			0x20
+
+/* DDRC Software control register */
+#define DDRC_SWCTL			0x320
+
+/* DDRC ECC CE & UE poison mask */
+#define ECC_CEPOISON_MASK		0x3
+#define ECC_UEPOISON_MASK		0x1
+
+/* DDRC Device config masks */
+#define DDRC_MSTR_CFG_MASK		0xC0000000
+#define DDRC_MSTR_CFG_SHIFT		30
+#define DDRC_MSTR_CFG_X4_MASK		0x0
+#define DDRC_MSTR_CFG_X8_MASK		0x1
+#define DDRC_MSTR_CFG_X16_MASK		0x2
+#define DDRC_MSTR_CFG_X32_MASK		0x3
+
+#define DDR_MAX_ROW_SHIFT		18
+#define DDR_MAX_COL_SHIFT		14
+#define DDR_MAX_BANK_SHIFT		3
+#define DDR_MAX_BANKGRP_SHIFT		2
+
+#define ROW_MAX_VAL_MASK		0xF
+#define COL_MAX_VAL_MASK		0xF
+#define BANK_MAX_VAL_MASK		0x1F
+#define BANKGRP_MAX_VAL_MASK		0x1F
+#define RANK_MAX_VAL_MASK		0x1F
+
+#define ROW_B0_BASE			6
+#define ROW_B1_BASE			7
+#define ROW_B2_BASE			8
+#define ROW_B3_BASE			9
+#define ROW_B4_BASE			10
+#define ROW_B5_BASE			11
+#define ROW_B6_BASE			12
+#define ROW_B7_BASE			13
+#define ROW_B8_BASE			14
+#define ROW_B9_BASE			15
+#define ROW_B10_BASE			16
+#define ROW_B11_BASE			17
+#define ROW_B12_BASE			18
+#define ROW_B13_BASE			19
+#define ROW_B14_BASE			20
+#define ROW_B15_BASE			21
+#define ROW_B16_BASE			22
+#define ROW_B17_BASE			23
+
+#define COL_B2_BASE			2
+#define COL_B3_BASE			3
+#define COL_B4_BASE			4
+#define COL_B5_BASE			5
+#define COL_B6_BASE			6
+#define COL_B7_BASE			7
+#define COL_B8_BASE			8
+#define COL_B9_BASE			9
+#define COL_B10_BASE			10
+#define COL_B11_BASE			11
+#define COL_B12_BASE			12
+#define COL_B13_BASE			13
+
+#define BANK_B0_BASE			2
+#define BANK_B1_BASE			3
+#define BANK_B2_BASE			4
+
+#define BANKGRP_B0_BASE			2
+#define BANKGRP_B1_BASE			3
+
+#define RANK_B0_BASE			6
 
 /**
- * struct ecc_error_info - ECC error log information
- * @row:	Row number
- * @col:	Column number
- * @bank:	Bank number
- * @bitpos:	Bit position
- * @data:	Data causing the error
+ * struct ecc_error_info - ECC error log information.
+ * @row:	Row number.
+ * @col:	Column number.
+ * @bank:	Bank number.
+ * @bitpos:	Bit position.
+ * @data:	Data causing the error.
+ * @bankgrpnr:	Bank group number.
+ * @blknr:	Block number.
  */
 struct ecc_error_info {
 	u32 row;
@@ -109,14 +282,16 @@ struct ecc_error_info {
 	u32 bank;
 	u32 bitpos;
 	u32 data;
+	u32 bankgrpnr;
+	u32 blknr;
 };
 
 /**
- * struct synps_ecc_status - ECC status information to report
- * @ce_cnt:	Correctable error count
- * @ue_cnt:	Uncorrectable error count
- * @ceinfo:	Correctable error log information
- * @ueinfo:	Uncorrectable error log information
+ * struct synps_ecc_status - ECC status information to report.
+ * @ce_cnt:	Correctable error count.
+ * @ue_cnt:	Uncorrectable error count.
+ * @ceinfo:	Correctable error log information.
+ * @ueinfo:	Uncorrectable error log information.
  */
 struct synps_ecc_status {
 	u32 ce_cnt;
@@ -126,34 +301,67 @@ struct synps_ecc_status {
 };
 
 /**
- * struct synps_edac_priv - DDR memory controller private instance data
- * @baseaddr:	Base address of the DDR controller
- * @message:	Buffer for framing the event specific info
- * @stat:	ECC status information
- * @ce_cnt:	Correctable Error count
- * @ue_cnt:	Uncorrectable Error count
+ * struct synps_edac_priv - DDR memory controller private instance data.
+ * @baseaddr:		Base address of the DDR controller.
+ * @message:		Buffer for framing the event specific info.
+ * @stat:		ECC status information.
+ * @p_data:		Platform data.
+ * @ce_cnt:		Correctable Error count.
+ * @ue_cnt:		Uncorrectable Error count.
+ * @poison_addr:	Data poison address.
+ * @row_shift:		Bit shifts for row bit.
+ * @col_shift:		Bit shifts for column bit.
+ * @bank_shift:		Bit shifts for bank bit.
+ * @bankgrp_shift:	Bit shifts for bank group bit.
+ * @rank_shift:		Bit shifts for rank bit.
  */
 struct synps_edac_priv {
 	void __iomem *baseaddr;
 	char message[SYNPS_EDAC_MSG_SIZE];
 	struct synps_ecc_status stat;
+	const struct synps_platform_data *p_data;
 	u32 ce_cnt;
 	u32 ue_cnt;
+#ifdef CONFIG_EDAC_DEBUG
+	ulong poison_addr;
+	u32 row_shift[18];
+	u32 col_shift[14];
+	u32 bank_shift[3];
+	u32 bankgrp_shift[2];
+	u32 rank_shift[1];
+#endif
 };
 
 /**
- * synps_edac_geterror_info - Get the current ecc error info
- * @base:	Pointer to the base address of the ddr memory controller
- * @p:		Pointer to the synopsys ecc status structure
- *
- * Determines there is any ecc error or not
+ * struct synps_platform_data -  synps platform data structure.
+ * @get_error_info:	Get EDAC error info.
+ * @get_mtype:		Get mtype.
+ * @get_dtype:		Get dtype.
+ * @get_ecc_state:	Get ECC state.
+ * @quirks:		To differentiate IPs.
+ */
+struct synps_platform_data {
+	int (*get_error_info)(struct synps_edac_priv *priv);
+	enum mem_type (*get_mtype)(const void __iomem *base);
+	enum dev_type (*get_dtype)(const void __iomem *base);
+	bool (*get_ecc_state)(void __iomem *base);
+	int quirks;
+};
+
+/**
+ * zynq_get_error_info - Get the current ECC error info.
+ * @priv:	DDR memory controller private instance data.
  *
- * Return: one if there is no error otherwise returns zero
+ * Return: one if there is no error, otherwise zero.
  */
-static int synps_edac_geterror_info(void __iomem *base,
-				    struct synps_ecc_status *p)
+static int zynq_get_error_info(struct synps_edac_priv *priv)
 {
+	struct synps_ecc_status *p;
 	u32 regval, clearval = 0;
+	void __iomem *base;
+
+	base = priv->baseaddr;
+	p = &priv->stat;
 
 	regval = readl(base + STAT_OFST);
 	if (!regval)
@@ -172,7 +380,7 @@ static int synps_edac_geterror_info(void __iomem *base,
 	p->ceinfo.col = regval & ADDR_COL_MASK;
 	p->ceinfo.bank = (regval & ADDR_BANK_MASK) >> ADDR_BANK_SHIFT;
 	p->ceinfo.data = readl(base + CE_DATA_31_0_OFST);
-	edac_dbg(3, "ce bit position: %d data: %d\n", p->ceinfo.bitpos,
+	edac_dbg(3, "CE bit position: %d data: %d\n", p->ceinfo.bitpos,
 		 p->ceinfo.data);
 	clearval = ECC_CTRL_CLR_CE_ERR;
 
@@ -196,23 +404,98 @@ static int synps_edac_geterror_info(void __iomem *base,
 }
 
 /**
- * synps_edac_handle_error - Handle controller error types CE and UE
- * @mci:	Pointer to the edac memory controller instance
- * @p:		Pointer to the synopsys ecc status structure
+ * zynqmp_get_error_info - Get the current ECC error info.
+ * @priv:	DDR memory controller private instance data.
  *
- * Handles the controller ECC correctable and un correctable error.
+ * Return: one if there is no error otherwise returns zero.
  */
-static void synps_edac_handle_error(struct mem_ctl_info *mci,
-				    struct synps_ecc_status *p)
+static int zynqmp_get_error_info(struct synps_edac_priv *priv)
+{
+	struct synps_ecc_status *p;
+	u32 regval, clearval = 0;
+	void __iomem *base;
+
+	base = priv->baseaddr;
+	p = &priv->stat;
+
+	regval = readl(base + ECC_STAT_OFST);
+	if (!regval)
+		return 1;
+
+	p->ce_cnt = (regval & ECC_STAT_CECNT_MASK) >> ECC_STAT_CECNT_SHIFT;
+	p->ue_cnt = (regval & ECC_STAT_UECNT_MASK) >> ECC_STAT_UECNT_SHIFT;
+	if (!p->ce_cnt)
+		goto ue_err;
+
+	p->ceinfo.bitpos = (regval & ECC_STAT_BITNUM_MASK);
+
+	regval = readl(base + ECC_CEADDR0_OFST);
+	p->ceinfo.row = (regval & ECC_CEADDR0_RW_MASK);
+	regval = readl(base + ECC_CEADDR1_OFST);
+	p->ceinfo.bank = (regval & ECC_CEADDR1_BNKNR_MASK) >>
+					ECC_CEADDR1_BNKNR_SHIFT;
+	p->ceinfo.bankgrpnr = (regval &	ECC_CEADDR1_BNKGRP_MASK) >>
+					ECC_CEADDR1_BNKGRP_SHIFT;
+	p->ceinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK);
+	p->ceinfo.data = readl(base + ECC_CSYND0_OFST);
+	edac_dbg(2, "ECCCSYN0: 0x%08X ECCCSYN1: 0x%08X ECCCSYN2: 0x%08X\n",
+		 readl(base + ECC_CSYND0_OFST), readl(base + ECC_CSYND1_OFST),
+		 readl(base + ECC_CSYND2_OFST));
+ue_err:
+	if (!p->ue_cnt)
+		goto out;
+
+	regval = readl(base + ECC_UEADDR0_OFST);
+	p->ueinfo.row = (regval & ECC_CEADDR0_RW_MASK);
+	regval = readl(base + ECC_UEADDR1_OFST);
+	p->ueinfo.bankgrpnr = (regval & ECC_CEADDR1_BNKGRP_MASK) >>
+					ECC_CEADDR1_BNKGRP_SHIFT;
+	p->ueinfo.bank = (regval & ECC_CEADDR1_BNKNR_MASK) >>
+					ECC_CEADDR1_BNKNR_SHIFT;
+	p->ueinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK);
+	p->ueinfo.data = readl(base + ECC_UESYND0_OFST);
+out:
+	clearval = ECC_CTRL_CLR_CE_ERR | ECC_CTRL_CLR_CE_ERRCNT;
+	clearval |= ECC_CTRL_CLR_UE_ERR | ECC_CTRL_CLR_UE_ERRCNT;
+	writel(clearval, base + ECC_CLR_OFST);
+	writel(0x0, base + ECC_CLR_OFST);
+
+	return 0;
+}
+
+/**
+ * handle_error - Handle Correctable and Uncorrectable errors.
+ * @mci:	EDAC memory controller instance.
+ * @p:		Synopsys ECC status structure.
+ *
+ * Handles ECC correctable and uncorrectable errors.
+ */
+static void handle_error(struct mem_ctl_info *mci, struct synps_ecc_status *p)
 {
 	struct synps_edac_priv *priv = mci->pvt_info;
 	struct ecc_error_info *pinf;
 
 	if (p->ce_cnt) {
 		pinf = &p->ceinfo;
-		snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
-			 "DDR ECC error type :%s Row %d Bank %d Col %d ",
-			 "CE", pinf->row, pinf->bank, pinf->col);
+		if (!priv->p_data->quirks) {
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "DDR ECC error type:%s Row %d Bank %d Col %d ",
+				  "CE", pinf->row, pinf->bank, pinf->col);
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "Bit Position: %d Data: 0x%08x\n",
+				 pinf->bitpos, pinf->data);
+		} else {
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "DDR ECC error type:%s Row %d Bank %d Col %d ",
+				  "CE", pinf->row, pinf->bank, pinf->col);
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "BankGroup Number %d Block Number %d ",
+				 pinf->bankgrpnr, pinf->blknr);
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "Bit Position: %d Data: 0x%08x\n",
+				 pinf->bitpos, pinf->data);
+		}
+
 		edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci,
 				     p->ce_cnt, 0, 0, 0, 0, 0, -1,
 				     priv->message, "");
@@ -220,9 +503,19 @@ static void synps_edac_handle_error(struct mem_ctl_info *mci,
 
 	if (p->ue_cnt) {
 		pinf = &p->ueinfo;
-		snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
-			 "DDR ECC error type :%s Row %d Bank %d Col %d ",
-			 "UE", pinf->row, pinf->bank, pinf->col);
+		if (!priv->p_data->quirks) {
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "DDR ECC error type :%s Row %d Bank %d Col %d ",
+				"UE", pinf->row, pinf->bank, pinf->col);
+		} else {
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "DDR ECC error type :%s Row %d Bank %d Col %d ",
+				 "UE", pinf->row, pinf->bank, pinf->col);
+			snprintf(priv->message, SYNPS_EDAC_MSG_SIZE,
+				 "BankGroup Number %d Block Number %d",
+				 pinf->bankgrpnr, pinf->blknr);
+		}
+
 		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci,
 				     p->ue_cnt, 0, 0, 0, 0, 0, -1,
 				     priv->message, "");
@@ -232,38 +525,78 @@ static void synps_edac_handle_error(struct mem_ctl_info *mci,
 }
 
 /**
- * synps_edac_check - Check controller for ECC errors
- * @mci:	Pointer to the edac memory controller instance
+ * intr_handler - Interrupt Handler for ECC interrupts.
+ * @irq:        IRQ number.
+ * @dev_id:     Device ID.
  *
- * Used to check and post ECC errors. Called by the polling thread
+ * Return: IRQ_NONE, if interrupt not set or IRQ_HANDLED otherwise.
  */
-static void synps_edac_check(struct mem_ctl_info *mci)
+static irqreturn_t intr_handler(int irq, void *dev_id)
 {
-	struct synps_edac_priv *priv = mci->pvt_info;
+	const struct synps_platform_data *p_data;
+	struct mem_ctl_info *mci = dev_id;
+	struct synps_edac_priv *priv;
+	int status, regval;
+
+	priv = mci->pvt_info;
+	p_data = priv->p_data;
+
+	regval = readl(priv->baseaddr + DDR_QOS_IRQ_STAT_OFST);
+	regval &= (DDR_QOSCE_MASK | DDR_QOSUE_MASK);
+	if (!(regval & ECC_CE_UE_INTR_MASK))
+		return IRQ_NONE;
+
+	status = p_data->get_error_info(priv);
+	if (status)
+		return IRQ_NONE;
+
+	priv->ce_cnt += priv->stat.ce_cnt;
+	priv->ue_cnt += priv->stat.ue_cnt;
+	handle_error(mci, &priv->stat);
+
+	edac_dbg(3, "Total error count CE %d UE %d\n",
+		 priv->ce_cnt, priv->ue_cnt);
+	writel(regval, priv->baseaddr + DDR_QOS_IRQ_STAT_OFST);
+	return IRQ_HANDLED;
+}
+
+/**
+ * check_errors - Check controller for ECC errors.
+ * @mci:	EDAC memory controller instance.
+ *
+ * Check and post ECC errors. Called by the polling thread.
+ */
+static void check_errors(struct mem_ctl_info *mci)
+{
+	const struct synps_platform_data *p_data;
+	struct synps_edac_priv *priv;
 	int status;
 
-	status = synps_edac_geterror_info(priv->baseaddr, &priv->stat);
+	priv = mci->pvt_info;
+	p_data = priv->p_data;
+
+	status = p_data->get_error_info(priv);
 	if (status)
 		return;
 
 	priv->ce_cnt += priv->stat.ce_cnt;
 	priv->ue_cnt += priv->stat.ue_cnt;
-	synps_edac_handle_error(mci, &priv->stat);
+	handle_error(mci, &priv->stat);
 
-	edac_dbg(3, "Total error count ce %d ue %d\n",
+	edac_dbg(3, "Total error count CE %d UE %d\n",
 		 priv->ce_cnt, priv->ue_cnt);
 }
 
 /**
- * synps_edac_get_dtype - Return the controller memory width
- * @base:	Pointer to the ddr memory controller base address
+ * zynq_get_dtype - Return the controller memory width.
+ * @base:	DDR memory controller base address.
  *
  * Get the EDAC device type width appropriate for the current controller
  * configuration.
  *
  * Return: a device type width enumeration.
  */
-static enum dev_type synps_edac_get_dtype(const void __iomem *base)
+static enum dev_type zynq_get_dtype(const void __iomem *base)
 {
 	enum dev_type dt;
 	u32 width;
@@ -286,36 +619,93 @@ static enum dev_type synps_edac_get_dtype(const void __iomem *base)
 }
 
 /**
- * synps_edac_get_eccstate - Return the controller ecc enable/disable status
- * @base:	Pointer to the ddr memory controller base address
+ * zynqmp_get_dtype - Return the controller memory width.
+ * @base:	DDR memory controller base address.
+ *
+ * Get the EDAC device type width appropriate for the current controller
+ * configuration.
+ *
+ * Return: a device type width enumeration.
+ */
+static enum dev_type zynqmp_get_dtype(const void __iomem *base)
+{
+	enum dev_type dt;
+	u32 width;
+
+	width = readl(base + CTRL_OFST);
+	width = (width & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT;
+	switch (width) {
+	case DDRCTL_EWDTH_16:
+		dt = DEV_X2;
+		break;
+	case DDRCTL_EWDTH_32:
+		dt = DEV_X4;
+		break;
+	case DDRCTL_EWDTH_64:
+		dt = DEV_X8;
+		break;
+	default:
+		dt = DEV_UNKNOWN;
+	}
+
+	return dt;
+}
+
+/**
+ * zynq_get_ecc_state - Return the controller ECC enable/disable status.
+ * @base:	DDR memory controller base address.
  *
- * Get the ECC enable/disable status for the controller
+ * Get the ECC enable/disable status of the controller.
  *
- * Return: a ecc status boolean i.e true/false - enabled/disabled.
+ * Return: true if enabled, otherwise false.
  */
-static bool synps_edac_get_eccstate(void __iomem *base)
+static bool zynq_get_ecc_state(void __iomem *base)
 {
 	enum dev_type dt;
 	u32 ecctype;
-	bool state = false;
 
-	dt = synps_edac_get_dtype(base);
+	dt = zynq_get_dtype(base);
 	if (dt == DEV_UNKNOWN)
-		return state;
+		return false;
 
 	ecctype = readl(base + SCRUB_OFST) & SCRUB_MODE_MASK;
 	if ((ecctype == SCRUB_MODE_SECDED) && (dt == DEV_X2))
-		state = true;
+		return true;
 
-	return state;
+	return false;
 }
 
 /**
- * synps_edac_get_memsize - reads the size of the attached memory device
+ * zynqmp_get_ecc_state - Return the controller ECC enable/disable status.
+ * @base:	DDR memory controller base address.
  *
- * Return: the memory size in bytes
+ * Get the ECC enable/disable status for the controller.
+ *
+ * Return: a ECC status boolean i.e true/false - enabled/disabled.
  */
-static u32 synps_edac_get_memsize(void)
+static bool zynqmp_get_ecc_state(void __iomem *base)
+{
+	enum dev_type dt;
+	u32 ecctype;
+
+	dt = zynqmp_get_dtype(base);
+	if (dt == DEV_UNKNOWN)
+		return false;
+
+	ecctype = readl(base + ECC_CFG0_OFST) & SCRUB_MODE_MASK;
+	if ((ecctype == SCRUB_MODE_SECDED) &&
+	    ((dt == DEV_X2) || (dt == DEV_X4) || (dt == DEV_X8)))
+		return true;
+
+	return false;
+}
+
+/**
+ * get_memsize - Read the size of the attached memory device.
+ *
+ * Return: the memory size in bytes.
+ */
+static u32 get_memsize(void)
 {
 	struct sysinfo inf;
 
@@ -325,15 +715,15 @@ static u32 synps_edac_get_memsize(void)
 }
 
 /**
- * synps_edac_get_mtype - Returns controller memory type
- * @base:	pointer to the synopsys ecc status structure
+ * zynq_get_mtype - Return the controller memory type.
+ * @base:	Synopsys ECC status structure.
  *
  * Get the EDAC memory type appropriate for the current controller
  * configuration.
  *
  * Return: a memory type enumeration.
  */
-static enum mem_type synps_edac_get_mtype(const void __iomem *base)
+static enum mem_type zynq_get_mtype(const void __iomem *base)
 {
 	enum mem_type mt;
 	u32 memtype;
@@ -349,54 +739,77 @@ static enum mem_type synps_edac_get_mtype(const void __iomem *base)
 }
 
 /**
- * synps_edac_init_csrows - Initialize the cs row data
- * @mci:	Pointer to the edac memory controller instance
+ * zynqmp_get_mtype - Returns controller memory type.
+ * @base:	Synopsys ECC status structure.
  *
- * Initializes the chip select rows associated with the EDAC memory
- * controller instance
+ * Get the EDAC memory type appropriate for the current controller
+ * configuration.
  *
- * Return: Unconditionally 0.
+ * Return: a memory type enumeration.
  */
-static int synps_edac_init_csrows(struct mem_ctl_info *mci)
+static enum mem_type zynqmp_get_mtype(const void __iomem *base)
 {
+	enum mem_type mt;
+	u32 memtype;
+
+	memtype = readl(base + CTRL_OFST);
+
+	if ((memtype & MEM_TYPE_DDR3) || (memtype & MEM_TYPE_LPDDR3))
+		mt = MEM_DDR3;
+	else if (memtype & MEM_TYPE_DDR2)
+		mt = MEM_RDDR2;
+	else if ((memtype & MEM_TYPE_LPDDR4) || (memtype & MEM_TYPE_DDR4))
+		mt = MEM_DDR4;
+	else
+		mt = MEM_EMPTY;
+
+	return mt;
+}
+
+/**
+ * init_csrows - Initialize the csrow data.
+ * @mci:	EDAC memory controller instance.
+ *
+ * Initialize the chip select rows associated with the EDAC memory
+ * controller instance.
+ */
+static void init_csrows(struct mem_ctl_info *mci)
+{
+	struct synps_edac_priv *priv = mci->pvt_info;
+	const struct synps_platform_data *p_data;
 	struct csrow_info *csi;
 	struct dimm_info *dimm;
-	struct synps_edac_priv *priv = mci->pvt_info;
-	u32 size;
-	int row, j;
+	u32 size, row;
+	int j;
+
+	p_data = priv->p_data;
 
 	for (row = 0; row < mci->nr_csrows; row++) {
 		csi = mci->csrows[row];
-		size = synps_edac_get_memsize();
+		size = get_memsize();
 
 		for (j = 0; j < csi->nr_channels; j++) {
-			dimm            = csi->channels[j]->dimm;
-			dimm->edac_mode = EDAC_FLAG_SECDED;
-			dimm->mtype     = synps_edac_get_mtype(priv->baseaddr);
-			dimm->nr_pages  = (size >> PAGE_SHIFT) / csi->nr_channels;
-			dimm->grain     = SYNPS_EDAC_ERR_GRAIN;
-			dimm->dtype     = synps_edac_get_dtype(priv->baseaddr);
+			dimm		= csi->channels[j]->dimm;
+			dimm->edac_mode	= EDAC_FLAG_SECDED;
+			dimm->mtype	= p_data->get_mtype(priv->baseaddr);
+			dimm->nr_pages	= (size >> PAGE_SHIFT) / csi->nr_channels;
+			dimm->grain	= SYNPS_EDAC_ERR_GRAIN;
+			dimm->dtype	= p_data->get_dtype(priv->baseaddr);
 		}
 	}
-
-	return 0;
 }
 
 /**
- * synps_edac_mc_init - Initialize driver instance
- * @mci:	Pointer to the edac memory controller instance
- * @pdev:	Pointer to the platform_device struct
+ * mc_init - Initialize one driver instance.
+ * @mci:	EDAC memory controller instance.
+ * @pdev:	platform device.
  *
- * Performs initialization of the EDAC memory controller instance and
+ * Perform initialization of the EDAC memory controller instance and
  * related driver-private data associated with the memory controller the
  * instance is bound to.
- *
- * Return: Always zero.
  */
-static int synps_edac_mc_init(struct mem_ctl_info *mci,
-				 struct platform_device *pdev)
+static void mc_init(struct mem_ctl_info *mci, struct platform_device *pdev)
 {
-	int status;
 	struct synps_edac_priv *priv;
 
 	mci->pdev = &pdev->dev;
@@ -414,39 +827,491 @@ static int synps_edac_mc_init(struct mem_ctl_info *mci,
 	mci->dev_name = SYNPS_EDAC_MOD_STRING;
 	mci->mod_name = SYNPS_EDAC_MOD_VER;
 
-	edac_op_state = EDAC_OPSTATE_POLL;
-	mci->edac_check = synps_edac_check;
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) {
+		edac_op_state = EDAC_OPSTATE_INT;
+	} else {
+		edac_op_state = EDAC_OPSTATE_POLL;
+		mci->edac_check = check_errors;
+	}
+
 	mci->ctl_page_to_phys = NULL;
 
-	status = synps_edac_init_csrows(mci);
+	init_csrows(mci);
+}
+
+static void enable_intr(struct synps_edac_priv *priv)
+{
+	/* Enable UE/CE Interrupts */
+	writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK,
+			priv->baseaddr + DDR_QOS_IRQ_EN_OFST);
+}
+
+static void disable_intr(struct synps_edac_priv *priv)
+{
+	/* Disable UE/CE Interrupts */
+	writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK,
+			priv->baseaddr + DDR_QOS_IRQ_DB_OFST);
+}
+
+static int setup_irq(struct mem_ctl_info *mci,
+		     struct platform_device *pdev)
+{
+	struct synps_edac_priv *priv = mci->pvt_info;
+	int ret, irq;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		edac_printk(KERN_ERR, EDAC_MC,
+			    "No IRQ %d in DT\n", irq);
+		return irq;
+	}
+
+	ret = devm_request_irq(&pdev->dev, irq, intr_handler,
+			       0, dev_name(&pdev->dev), mci);
+	if (ret < 0) {
+		edac_printk(KERN_ERR, EDAC_MC, "Failed to request IRQ\n");
+		return ret;
+	}
+
+	enable_intr(priv);
+
+	return 0;
+}
+
+static const struct synps_platform_data zynq_edac_def = {
+	.get_error_info	= zynq_get_error_info,
+	.get_mtype	= zynq_get_mtype,
+	.get_dtype	= zynq_get_dtype,
+	.get_ecc_state	= zynq_get_ecc_state,
+	.quirks		= 0,
+};
+
+static const struct synps_platform_data zynqmp_edac_def = {
+	.get_error_info	= zynqmp_get_error_info,
+	.get_mtype	= zynqmp_get_mtype,
+	.get_dtype	= zynqmp_get_dtype,
+	.get_ecc_state	= zynqmp_get_ecc_state,
+	.quirks         = (DDR_ECC_INTR_SUPPORT
+#ifdef CONFIG_EDAC_DEBUG
+			  | DDR_ECC_DATA_POISON_SUPPORT
+#endif
+			  ),
+};
+
+static const struct of_device_id synps_edac_match[] = {
+	{
+		.compatible = "xlnx,zynq-ddrc-a05",
+		.data = (void *)&zynq_edac_def
+	},
+	{
+		.compatible = "xlnx,zynqmp-ddrc-2.40a",
+		.data = (void *)&zynqmp_edac_def
+	},
+	{
+		/* end of table */
+	}
+};
+
+MODULE_DEVICE_TABLE(of, synps_edac_match);
+
+#ifdef CONFIG_EDAC_DEBUG
+#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
+
+/**
+ * ddr_poison_setup -	Update poison registers.
+ * @priv:		DDR memory controller private instance data.
+ *
+ * Update poison registers as per DDR mapping.
+ * Return: none.
+ */
+static void ddr_poison_setup(struct synps_edac_priv *priv)
+{
+	int col = 0, row = 0, bank = 0, bankgrp = 0, rank = 0, regval;
+	int index;
+	ulong hif_addr = 0;
+
+	hif_addr = priv->poison_addr >> 3;
+
+	for (index = 0; index < DDR_MAX_ROW_SHIFT; index++) {
+		if (priv->row_shift[index])
+			row |= (((hif_addr >> priv->row_shift[index]) &
+						BIT(0)) << index);
+		else
+			break;
+	}
+
+	for (index = 0; index < DDR_MAX_COL_SHIFT; index++) {
+		if (priv->col_shift[index] || index < 3)
+			col |= (((hif_addr >> priv->col_shift[index]) &
+						BIT(0)) << index);
+		else
+			break;
+	}
+
+	for (index = 0; index < DDR_MAX_BANK_SHIFT; index++) {
+		if (priv->bank_shift[index])
+			bank |= (((hif_addr >> priv->bank_shift[index]) &
+						BIT(0)) << index);
+		else
+			break;
+	}
+
+	for (index = 0; index < DDR_MAX_BANKGRP_SHIFT; index++) {
+		if (priv->bankgrp_shift[index])
+			bankgrp |= (((hif_addr >> priv->bankgrp_shift[index])
+						& BIT(0)) << index);
+		else
+			break;
+	}
+
+	if (priv->rank_shift[0])
+		rank = (hif_addr >> priv->rank_shift[0]) & BIT(0);
+
+	regval = (rank << ECC_POISON0_RANK_SHIFT) & ECC_POISON0_RANK_MASK;
+	regval |= (col << ECC_POISON0_COLUMN_SHIFT) & ECC_POISON0_COLUMN_MASK;
+	writel(regval, priv->baseaddr + ECC_POISON0_OFST);
+
+	regval = (bankgrp << ECC_POISON1_BG_SHIFT) & ECC_POISON1_BG_MASK;
+	regval |= (bank << ECC_POISON1_BANKNR_SHIFT) & ECC_POISON1_BANKNR_MASK;
+	regval |= (row << ECC_POISON1_ROW_SHIFT) & ECC_POISON1_ROW_MASK;
+	writel(regval, priv->baseaddr + ECC_POISON1_OFST);
+}
+
+static ssize_t inject_data_error_show(struct device *dev,
+				      struct device_attribute *mattr,
+				      char *data)
+{
+	struct mem_ctl_info *mci = to_mci(dev);
+	struct synps_edac_priv *priv = mci->pvt_info;
+
+	return sprintf(data, "Poison0 Addr: 0x%08x\n\rPoison1 Addr: 0x%08x\n\r"
+			"Error injection Address: 0x%lx\n\r",
+			readl(priv->baseaddr + ECC_POISON0_OFST),
+			readl(priv->baseaddr + ECC_POISON1_OFST),
+			priv->poison_addr);
+}
+
+static ssize_t inject_data_error_store(struct device *dev,
+				       struct device_attribute *mattr,
+				       const char *data, size_t count)
+{
+	struct mem_ctl_info *mci = to_mci(dev);
+	struct synps_edac_priv *priv = mci->pvt_info;
+
+	if (kstrtoul(data, 0, &priv->poison_addr))
+		return -EINVAL;
+
+	ddr_poison_setup(priv);
+
+	return count;
+}
+
+static ssize_t inject_data_poison_show(struct device *dev,
+				       struct device_attribute *mattr,
+				       char *data)
+{
+	struct mem_ctl_info *mci = to_mci(dev);
+	struct synps_edac_priv *priv = mci->pvt_info;
+
+	return sprintf(data, "Data Poisoning: %s\n\r",
+			(((readl(priv->baseaddr + ECC_CFG1_OFST)) & 0x3) == 0x3)
+			? ("Correctable Error") : ("UnCorrectable Error"));
+}
+
+static ssize_t inject_data_poison_store(struct device *dev,
+					struct device_attribute *mattr,
+					const char *data, size_t count)
+{
+	struct mem_ctl_info *mci = to_mci(dev);
+	struct synps_edac_priv *priv = mci->pvt_info;
+
+	writel(0, priv->baseaddr + DDRC_SWCTL);
+	if (strncmp(data, "CE", 2) == 0)
+		writel(ECC_CEPOISON_MASK, priv->baseaddr + ECC_CFG1_OFST);
+	else
+		writel(ECC_UEPOISON_MASK, priv->baseaddr + ECC_CFG1_OFST);
+	writel(1, priv->baseaddr + DDRC_SWCTL);
+
+	return count;
+}
+
+static DEVICE_ATTR_RW(inject_data_error);
+static DEVICE_ATTR_RW(inject_data_poison);
+
+static int edac_create_sysfs_attributes(struct mem_ctl_info *mci)
+{
+	int rc;
+
+	rc = device_create_file(&mci->dev, &dev_attr_inject_data_error);
+	if (rc < 0)
+		return rc;
+	rc = device_create_file(&mci->dev, &dev_attr_inject_data_poison);
+	if (rc < 0)
+		return rc;
+	return 0;
+}
+
+static void edac_remove_sysfs_attributes(struct mem_ctl_info *mci)
+{
+	device_remove_file(&mci->dev, &dev_attr_inject_data_error);
+	device_remove_file(&mci->dev, &dev_attr_inject_data_poison);
+}
+
+static void setup_row_address_map(struct synps_edac_priv *priv, u32 *addrmap)
+{
+	u32 addrmap_row_b2_10;
+	int index;
+
+	priv->row_shift[0] = (addrmap[5] & ROW_MAX_VAL_MASK) + ROW_B0_BASE;
+	priv->row_shift[1] = ((addrmap[5] >> 8) &
+			ROW_MAX_VAL_MASK) + ROW_B1_BASE;
+
+	addrmap_row_b2_10 = (addrmap[5] >> 16) & ROW_MAX_VAL_MASK;
+	if (addrmap_row_b2_10 != ROW_MAX_VAL_MASK) {
+		for (index = 2; index < 11; index++)
+			priv->row_shift[index] = addrmap_row_b2_10 +
+				index + ROW_B0_BASE;
+
+	} else {
+		priv->row_shift[2] = (addrmap[9] &
+				ROW_MAX_VAL_MASK) + ROW_B2_BASE;
+		priv->row_shift[3] = ((addrmap[9] >> 8) &
+				ROW_MAX_VAL_MASK) + ROW_B3_BASE;
+		priv->row_shift[4] = ((addrmap[9] >> 16) &
+				ROW_MAX_VAL_MASK) + ROW_B4_BASE;
+		priv->row_shift[5] = ((addrmap[9] >> 24) &
+				ROW_MAX_VAL_MASK) + ROW_B5_BASE;
+		priv->row_shift[6] = (addrmap[10] &
+				ROW_MAX_VAL_MASK) + ROW_B6_BASE;
+		priv->row_shift[7] = ((addrmap[10] >> 8) &
+				ROW_MAX_VAL_MASK) + ROW_B7_BASE;
+		priv->row_shift[8] = ((addrmap[10] >> 16) &
+				ROW_MAX_VAL_MASK) + ROW_B8_BASE;
+		priv->row_shift[9] = ((addrmap[10] >> 24) &
+				ROW_MAX_VAL_MASK) + ROW_B9_BASE;
+		priv->row_shift[10] = (addrmap[11] &
+				ROW_MAX_VAL_MASK) + ROW_B10_BASE;
+	}
 
-	return status;
+	priv->row_shift[11] = (((addrmap[5] >> 24) & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : (((addrmap[5] >> 24) &
+				ROW_MAX_VAL_MASK) + ROW_B11_BASE);
+	priv->row_shift[12] = ((addrmap[6] & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : ((addrmap[6] &
+				ROW_MAX_VAL_MASK) + ROW_B12_BASE);
+	priv->row_shift[13] = (((addrmap[6] >> 8) & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 8) &
+				ROW_MAX_VAL_MASK) + ROW_B13_BASE);
+	priv->row_shift[14] = (((addrmap[6] >> 16) & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 16) &
+				ROW_MAX_VAL_MASK) + ROW_B14_BASE);
+	priv->row_shift[15] = (((addrmap[6] >> 24) & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 24) &
+				ROW_MAX_VAL_MASK) + ROW_B15_BASE);
+	priv->row_shift[16] = ((addrmap[7] & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : ((addrmap[7] &
+				ROW_MAX_VAL_MASK) + ROW_B16_BASE);
+	priv->row_shift[17] = (((addrmap[7] >> 8) & ROW_MAX_VAL_MASK) ==
+				ROW_MAX_VAL_MASK) ? 0 : (((addrmap[7] >> 8) &
+				ROW_MAX_VAL_MASK) + ROW_B17_BASE);
+}
+
+static void setup_column_address_map(struct synps_edac_priv *priv, u32 *addrmap)
+{
+	u32 width, memtype;
+	int index;
+
+	memtype = readl(priv->baseaddr + CTRL_OFST);
+	width = (memtype & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT;
+
+	priv->col_shift[0] = 0;
+	priv->col_shift[1] = 1;
+	priv->col_shift[2] = (addrmap[2] & COL_MAX_VAL_MASK) + COL_B2_BASE;
+	priv->col_shift[3] = ((addrmap[2] >> 8) &
+			COL_MAX_VAL_MASK) + COL_B3_BASE;
+	priv->col_shift[4] = (((addrmap[2] >> 16) & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : (((addrmap[2] >> 16) &
+					COL_MAX_VAL_MASK) + COL_B4_BASE);
+	priv->col_shift[5] = (((addrmap[2] >> 24) & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : (((addrmap[2] >> 24) &
+					COL_MAX_VAL_MASK) + COL_B5_BASE);
+	priv->col_shift[6] = ((addrmap[3] & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : ((addrmap[3] &
+					COL_MAX_VAL_MASK) + COL_B6_BASE);
+	priv->col_shift[7] = (((addrmap[3] >> 8) & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 8) &
+					COL_MAX_VAL_MASK) + COL_B7_BASE);
+	priv->col_shift[8] = (((addrmap[3] >> 16) & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 16) &
+					COL_MAX_VAL_MASK) + COL_B8_BASE);
+	priv->col_shift[9] = (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) ==
+			COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 24) &
+					COL_MAX_VAL_MASK) + COL_B9_BASE);
+	if (width == DDRCTL_EWDTH_64) {
+		if (memtype & MEM_TYPE_LPDDR3) {
+			priv->col_shift[10] = ((addrmap[4] &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				((addrmap[4] & COL_MAX_VAL_MASK) +
+				 COL_B10_BASE);
+			priv->col_shift[11] = (((addrmap[4] >> 8) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[4] >> 8) & COL_MAX_VAL_MASK) +
+				 COL_B11_BASE);
+		} else {
+			priv->col_shift[11] = ((addrmap[4] &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				((addrmap[4] & COL_MAX_VAL_MASK) +
+				 COL_B10_BASE);
+			priv->col_shift[13] = (((addrmap[4] >> 8) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[4] >> 8) & COL_MAX_VAL_MASK) +
+				 COL_B11_BASE);
+		}
+	} else if (width == DDRCTL_EWDTH_32) {
+		if (memtype & MEM_TYPE_LPDDR3) {
+			priv->col_shift[10] = (((addrmap[3] >> 24) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 24) & COL_MAX_VAL_MASK) +
+				 COL_B9_BASE);
+			priv->col_shift[11] = ((addrmap[4] &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				((addrmap[4] & COL_MAX_VAL_MASK) +
+				 COL_B10_BASE);
+		} else {
+			priv->col_shift[11] = (((addrmap[3] >> 24) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 24) & COL_MAX_VAL_MASK) +
+				 COL_B9_BASE);
+			priv->col_shift[13] = ((addrmap[4] &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				((addrmap[4] & COL_MAX_VAL_MASK) +
+				 COL_B10_BASE);
+		}
+	} else {
+		if (memtype & MEM_TYPE_LPDDR3) {
+			priv->col_shift[10] = (((addrmap[3] >> 16) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 16) & COL_MAX_VAL_MASK) +
+				 COL_B8_BASE);
+			priv->col_shift[11] = (((addrmap[3] >> 24) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 24) & COL_MAX_VAL_MASK) +
+				 COL_B9_BASE);
+			priv->col_shift[13] = ((addrmap[4] &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				((addrmap[4] & COL_MAX_VAL_MASK) +
+				 COL_B10_BASE);
+		} else {
+			priv->col_shift[11] = (((addrmap[3] >> 16) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 16) & COL_MAX_VAL_MASK) +
+				 COL_B8_BASE);
+			priv->col_shift[13] = (((addrmap[3] >> 24) &
+				COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 :
+				(((addrmap[3] >> 24) & COL_MAX_VAL_MASK) +
+				 COL_B9_BASE);
+		}
+	}
+
+	if (width) {
+		for (index = 9; index > width; index--) {
+			priv->col_shift[index] = priv->col_shift[index - width];
+			priv->col_shift[index - width] = 0;
+		}
+	}
+
+}
+
+static void setup_bank_address_map(struct synps_edac_priv *priv, u32 *addrmap)
+{
+	priv->bank_shift[0] = (addrmap[1] & BANK_MAX_VAL_MASK) + BANK_B0_BASE;
+	priv->bank_shift[1] = ((addrmap[1] >> 8) &
+				BANK_MAX_VAL_MASK) + BANK_B1_BASE;
+	priv->bank_shift[2] = (((addrmap[1] >> 16) &
+				BANK_MAX_VAL_MASK) == BANK_MAX_VAL_MASK) ? 0 :
+				(((addrmap[1] >> 16) & BANK_MAX_VAL_MASK) +
+				 BANK_B2_BASE);
+
+}
+
+static void setup_bg_address_map(struct synps_edac_priv *priv, u32 *addrmap)
+{
+	priv->bankgrp_shift[0] = (addrmap[8] &
+				BANKGRP_MAX_VAL_MASK) + BANKGRP_B0_BASE;
+	priv->bankgrp_shift[1] = (((addrmap[8] >> 8) & BANKGRP_MAX_VAL_MASK) ==
+				BANKGRP_MAX_VAL_MASK) ? 0 : (((addrmap[8] >> 8)
+				& BANKGRP_MAX_VAL_MASK) + BANKGRP_B1_BASE);
+
+}
+
+static void setup_rank_address_map(struct synps_edac_priv *priv, u32 *addrmap)
+{
+	priv->rank_shift[0] = ((addrmap[0] & RANK_MAX_VAL_MASK) ==
+				RANK_MAX_VAL_MASK) ? 0 : ((addrmap[0] &
+				RANK_MAX_VAL_MASK) + RANK_B0_BASE);
 }
 
 /**
- * synps_edac_mc_probe - Check controller and bind driver
- * @pdev:	Pointer to the platform_device struct
+ * setup_address_map -	Set Address Map by querying ADDRMAP registers.
+ * @priv:		DDR memory controller private instance data.
  *
- * Probes a specific controller instance for binding with the driver.
+ * Set Address Map by querying ADDRMAP registers.
+ *
+ * Return: none.
+ */
+static void setup_address_map(struct synps_edac_priv *priv)
+{
+	u32 addrmap[12];
+	int index;
+
+	for (index = 0; index < 12; index++) {
+		u32 addrmap_offset;
+
+		addrmap_offset = ECC_ADDRMAP0_OFFSET + (index * 4);
+		addrmap[index] = readl(priv->baseaddr + addrmap_offset);
+	}
+
+	setup_row_address_map(priv, addrmap);
+
+	setup_column_address_map(priv, addrmap);
+
+	setup_bank_address_map(priv, addrmap);
+
+	setup_bg_address_map(priv, addrmap);
+
+	setup_rank_address_map(priv, addrmap);
+}
+#endif /* CONFIG_EDAC_DEBUG */
+
+/**
+ * mc_probe - Check controller and bind driver.
+ * @pdev:	platform device.
+ *
+ * Probe a specific controller instance for binding with the driver.
  *
  * Return: 0 if the controller instance was successfully bound to the
  * driver; otherwise, < 0 on error.
  */
-static int synps_edac_mc_probe(struct platform_device *pdev)
+static int mc_probe(struct platform_device *pdev)
 {
-	struct mem_ctl_info *mci;
+	const struct synps_platform_data *p_data;
 	struct edac_mc_layer layers[2];
 	struct synps_edac_priv *priv;
-	int rc;
-	struct resource *res;
+	struct mem_ctl_info *mci;
 	void __iomem *baseaddr;
+	struct resource *res;
+	int rc;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	baseaddr = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(baseaddr))
 		return PTR_ERR(baseaddr);
 
-	if (!synps_edac_get_eccstate(baseaddr)) {
+	p_data = of_device_get_match_data(&pdev->dev);
+	if (!p_data)
+		return -ENODEV;
+
+	if (!p_data->get_ecc_state(baseaddr)) {
 		edac_printk(KERN_INFO, EDAC_MC, "ECC not enabled\n");
 		return -ENXIO;
 	}
@@ -468,11 +1333,14 @@ static int synps_edac_mc_probe(struct platform_device *pdev)
 
 	priv = mci->pvt_info;
 	priv->baseaddr = baseaddr;
-	rc = synps_edac_mc_init(mci, pdev);
-	if (rc) {
-		edac_printk(KERN_ERR, EDAC_MC,
-			    "Failed to initialize instance\n");
-		goto free_edac_mc;
+	priv->p_data = p_data;
+
+	mc_init(mci, pdev);
+
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) {
+		rc = setup_irq(mci, pdev);
+		if (rc)
+			goto free_edac_mc;
 	}
 
 	rc = edac_mc_add_mc(mci);
@@ -482,11 +1350,27 @@ static int synps_edac_mc_probe(struct platform_device *pdev)
 		goto free_edac_mc;
 	}
 
+#ifdef CONFIG_EDAC_DEBUG
+	if (priv->p_data->quirks & DDR_ECC_DATA_POISON_SUPPORT) {
+		if (edac_create_sysfs_attributes(mci)) {
+			edac_printk(KERN_ERR, EDAC_MC,
+					"Failed to create sysfs entries\n");
+			goto free_edac_mc;
+		}
+	}
+
+	if (of_device_is_compatible(pdev->dev.of_node,
+				    "xlnx,zynqmp-ddrc-2.40a"))
+		setup_address_map(priv);
+#endif
+
 	/*
 	 * Start capturing the correctable and uncorrectable errors. A write of
 	 * 0 starts the counters.
 	 */
-	writel(0x0, baseaddr + ECC_CTRL_OFST);
+	if (!(priv->p_data->quirks & DDR_ECC_INTR_SUPPORT))
+		writel(0x0, baseaddr + ECC_CTRL_OFST);
+
 	return rc;
 
 free_edac_mc:
@@ -496,14 +1380,23 @@ static int synps_edac_mc_probe(struct platform_device *pdev)
 }
 
 /**
- * synps_edac_mc_remove - Unbind driver from controller
- * @pdev:	Pointer to the platform_device struct
+ * mc_remove - Unbind driver from controller.
+ * @pdev:	Platform device.
  *
  * Return: Unconditionally 0
  */
-static int synps_edac_mc_remove(struct platform_device *pdev)
+static int mc_remove(struct platform_device *pdev)
 {
 	struct mem_ctl_info *mci = platform_get_drvdata(pdev);
+	struct synps_edac_priv *priv = mci->pvt_info;
+
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)
+		disable_intr(priv);
+
+#ifdef CONFIG_EDAC_DEBUG
+	if (priv->p_data->quirks & DDR_ECC_DATA_POISON_SUPPORT)
+		edac_remove_sysfs_attributes(mci);
+#endif
 
 	edac_mc_del_mc(&pdev->dev);
 	edac_mc_free(mci);
@@ -511,20 +1404,13 @@ static int synps_edac_mc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id synps_edac_match[] = {
-	{ .compatible = "xlnx,zynq-ddrc-a05", },
-	{ /* end of table */ }
-};
-
-MODULE_DEVICE_TABLE(of, synps_edac_match);
-
 static struct platform_driver synps_edac_mc_driver = {
 	.driver = {
 		   .name = "synopsys-edac",
 		   .of_match_table = synps_edac_match,
 		   },
-	.probe = synps_edac_mc_probe,
-	.remove = synps_edac_mc_remove,
+	.probe = mc_probe,
+	.remove = mc_remove,
 };
 
 module_platform_driver(synps_edac_mc_driver);

include/linux/adxl.h

@@ -7,12 +7,7 @@
 #ifndef _LINUX_ADXL_H
 #define _LINUX_ADXL_H
 
-#ifdef CONFIG_ACPI_ADXL
 const char * const *adxl_get_component_names(void);
 int adxl_decode(u64 addr, u64 component_values[]);
-#else
-static inline const char * const *adxl_get_component_names(void)  { return NULL; }
-static inline int adxl_decode(u64 addr, u64 component_values[])   { return  -EOPNOTSUPP; }
-#endif
 
 #endif /* _LINUX_ADXL_H */

include/linux/edac.h

@@ -669,10 +669,4 @@ struct mem_ctl_info {
 	bool fake_inject_ue;
 	u16 fake_inject_count;
 };
-
-/*
- * Maximum number of memory controllers in the coherent fabric.
- */
-#define EDAC_MAX_MCS	2 * MAX_NUMNODES
-
 #endif