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Message-ID: <1470946525-3410-1-git-send-email-york.sun@nxp.com>
Date: Thu, 11 Aug 2016 13:15:18 -0700
From: York Sun <york.sun@....com>
To: <linux-edac@...r.kernel.org>
CC: <morbidrsa@...il.com>, <oss@...error.net>, <stuart.yoder@....com>,
<bp@...en8.de>, York Sun <york.sun@....com>,
Doug Thompson <dougthompson@...ssion.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
<linux-kernel@...r.kernel.org>
Subject: [Patch v5 3/9] driver/edac/fsl-ddr: Separate FSL DDR EDAC driver from MPC85xx
The mpc85xx compatible DDR controllers are used on ARM-based SoCs.
Separate the DDR part from mpc85xx EDAC driver and prepare to support
both architecture.
Signed-off-by: York Sun <york.sun@....com>
---
Change log
v5: Rebase onto git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git
edac-for-4.9 branch
v4: Change comment in file header
Use lower case "fsl_ddr_edac" for EDAC_MOD_STR
Drop exporting probe and remove symbols
v3: Fix compiling errors and warnings caused by patch ordering
v2: Reordered patch
Separate FSL DDR commont code as shared object, not another driver
This patch is generated with "git format-patch -M40 -C40" to show
copy-and-delete.
drivers/edac/Makefile | 5 +-
drivers/edac/{mpc85xx_edac.c => fsl_ddr_edac.c} | 702 +-----------------------
drivers/edac/{mpc85xx_edac.h => fsl_ddr_edac.h} | 110 +---
drivers/edac/mpc85xx_edac.c | 556 +------------------
drivers/edac/mpc85xx_edac.h | 66 ---
5 files changed, 33 insertions(+), 1406 deletions(-)
copy drivers/edac/{mpc85xx_edac.c => fsl_ddr_edac.c} (43%)
copy drivers/edac/{mpc85xx_edac.h => fsl_ddr_edac.h} (43%)
diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile
index f9e4a3e..ee047a4 100644
--- a/drivers/edac/Makefile
+++ b/drivers/edac/Makefile
@@ -50,7 +50,10 @@ amd64_edac_mod-$(CONFIG_EDAC_AMD64_ERROR_INJECTION) += amd64_edac_inj.o
obj-$(CONFIG_EDAC_AMD64) += amd64_edac_mod.o
obj-$(CONFIG_EDAC_PASEMI) += pasemi_edac.o
-obj-$(CONFIG_EDAC_MPC85XX) += mpc85xx_edac.o
+
+mpc85xx_edac_mod-y := fsl_ddr_edac.o mpc85xx_edac.o
+obj-$(CONFIG_EDAC_MPC85XX) += mpc85xx_edac_mod.o
+
obj-$(CONFIG_EDAC_MV64X60) += mv64x60_edac.o
obj-$(CONFIG_EDAC_CELL) += cell_edac.o
obj-$(CONFIG_EDAC_PPC4XX) += ppc4xx_edac.o
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/fsl_ddr_edac.c
similarity index 43%
copy from drivers/edac/mpc85xx_edac.c
copy to drivers/edac/fsl_ddr_edac.c
index 5bfb4e7..ca7636f 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/fsl_ddr_edac.c
@@ -1,5 +1,9 @@
/*
- * Freescale MPC85xx Memory Controller kernel module
+ * 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.
*
* Parts Copyrighted (c) 2013 by Freescale Semiconductor, Inc.
*
@@ -20,33 +24,20 @@
#include <linux/edac.h>
#include <linux/smp.h>
#include <linux/gfp.h>
-#include <linux/fsl/edac.h>
#include <linux/of_platform.h>
#include <linux/of_device.h>
#include "edac_module.h"
#include "edac_core.h"
-#include "mpc85xx_edac.h"
+#include "fsl_ddr_edac.h"
+
+#define EDAC_MOD_STR "fsl_ddr_edac"
-static int edac_dev_idx;
-#ifdef CONFIG_PCI
-static int edac_pci_idx;
-#endif
static int edac_mc_idx;
static u32 orig_ddr_err_disable;
static u32 orig_ddr_err_sbe;
-/*
- * PCI Err defines
- */
-#ifdef CONFIG_PCI
-static u32 orig_pci_err_cap_dr;
-static u32 orig_pci_err_en;
-#endif
-
-static u32 orig_l2_err_disable;
-
/************************ MC SYSFS parts ***********************************/
#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
@@ -141,584 +132,6 @@ static struct attribute *mpc85xx_dev_attrs[] = {
ATTRIBUTE_GROUPS(mpc85xx_dev);
-/**************************** PCI Err device ***************************/
-#ifdef CONFIG_PCI
-
-static void mpc85xx_pci_check(struct edac_pci_ctl_info *pci)
-{
- struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
-
- /* master aborts can happen during PCI config cycles */
- if (!(err_detect & ~(PCI_EDE_MULTI_ERR | PCI_EDE_MST_ABRT))) {
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
- return;
- }
-
- pr_err("PCI error(s) detected\n");
- pr_err("PCI/X ERR_DR register: %#08x\n", err_detect);
-
- pr_err("PCI/X ERR_ATTRIB register: %#08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ATTRIB));
- pr_err("PCI/X ERR_ADDR register: %#08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR));
- pr_err("PCI/X ERR_EXT_ADDR register: %#08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EXT_ADDR));
- pr_err("PCI/X ERR_DL register: %#08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DL));
- pr_err("PCI/X ERR_DH register: %#08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DH));
-
- /* clear error bits */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
-
- if (err_detect & PCI_EDE_PERR_MASK)
- edac_pci_handle_pe(pci, pci->ctl_name);
-
- if ((err_detect & ~PCI_EDE_MULTI_ERR) & ~PCI_EDE_PERR_MASK)
- edac_pci_handle_npe(pci, pci->ctl_name);
-}
-
-static void mpc85xx_pcie_check(struct edac_pci_ctl_info *pci)
-{
- struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
-
- pr_err("PCIe error(s) detected\n");
- pr_err("PCIe ERR_DR register: 0x%08x\n", err_detect);
- pr_err("PCIe ERR_CAP_STAT register: 0x%08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR));
- pr_err("PCIe ERR_CAP_R0 register: 0x%08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R0));
- pr_err("PCIe ERR_CAP_R1 register: 0x%08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R1));
- pr_err("PCIe ERR_CAP_R2 register: 0x%08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R2));
- pr_err("PCIe ERR_CAP_R3 register: 0x%08x\n",
- in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R3));
-
- /* clear error bits */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
-}
-
-static int mpc85xx_pcie_find_capability(struct device_node *np)
-{
- struct pci_controller *hose;
-
- if (!np)
- return -EINVAL;
-
- hose = pci_find_hose_for_OF_device(np);
-
- return early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP);
-}
-
-static irqreturn_t mpc85xx_pci_isr(int irq, void *dev_id)
-{
- struct edac_pci_ctl_info *pci = dev_id;
- struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
-
- if (!err_detect)
- return IRQ_NONE;
-
- if (pdata->is_pcie)
- mpc85xx_pcie_check(pci);
- else
- mpc85xx_pci_check(pci);
-
- return IRQ_HANDLED;
-}
-
-static int mpc85xx_pci_err_probe(struct platform_device *op)
-{
- struct edac_pci_ctl_info *pci;
- struct mpc85xx_pci_pdata *pdata;
- struct mpc85xx_edac_pci_plat_data *plat_data;
- struct device_node *of_node;
- struct resource r;
- int res = 0;
-
- if (!devres_open_group(&op->dev, mpc85xx_pci_err_probe, GFP_KERNEL))
- return -ENOMEM;
-
- pci = edac_pci_alloc_ctl_info(sizeof(*pdata), "mpc85xx_pci_err");
- if (!pci)
- return -ENOMEM;
-
- /* make sure error reporting method is sane */
- switch (edac_op_state) {
- case EDAC_OPSTATE_POLL:
- case EDAC_OPSTATE_INT:
- break;
- default:
- edac_op_state = EDAC_OPSTATE_INT;
- break;
- }
-
- pdata = pci->pvt_info;
- pdata->name = "mpc85xx_pci_err";
- pdata->irq = NO_IRQ;
-
- plat_data = op->dev.platform_data;
- if (!plat_data) {
- dev_err(&op->dev, "no platform data");
- res = -ENXIO;
- goto err;
- }
- of_node = plat_data->of_node;
-
- if (mpc85xx_pcie_find_capability(of_node) > 0)
- pdata->is_pcie = true;
-
- dev_set_drvdata(&op->dev, pci);
- pci->dev = &op->dev;
- pci->mod_name = EDAC_MOD_STR;
- pci->ctl_name = pdata->name;
- pci->dev_name = dev_name(&op->dev);
-
- if (edac_op_state == EDAC_OPSTATE_POLL) {
- if (pdata->is_pcie)
- pci->edac_check = mpc85xx_pcie_check;
- else
- pci->edac_check = mpc85xx_pci_check;
- }
-
- pdata->edac_idx = edac_pci_idx++;
-
- res = of_address_to_resource(of_node, 0, &r);
- if (res) {
- pr_err("%s: Unable to get resource for PCI err regs\n", __func__);
- goto err;
- }
-
- /* we only need the error registers */
- r.start += 0xe00;
-
- if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
- pdata->name)) {
- pr_err("%s: Error while requesting mem region\n", __func__);
- res = -EBUSY;
- goto err;
- }
-
- pdata->pci_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
- if (!pdata->pci_vbase) {
- pr_err("%s: Unable to setup PCI err regs\n", __func__);
- res = -ENOMEM;
- goto err;
- }
-
- if (pdata->is_pcie) {
- orig_pci_err_cap_dr =
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR);
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR, ~0);
- orig_pci_err_en =
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN);
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, 0);
- } else {
- orig_pci_err_cap_dr =
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR);
-
- /* PCI master abort is expected during config cycles */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR, 0x40);
-
- orig_pci_err_en =
- in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN);
-
- /* disable master abort reporting */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, ~0x40);
- }
-
- /* clear error bits */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, ~0);
-
- if (edac_pci_add_device(pci, pdata->edac_idx) > 0) {
- edac_dbg(3, "failed edac_pci_add_device()\n");
- goto err;
- }
-
- if (edac_op_state == EDAC_OPSTATE_INT) {
- pdata->irq = irq_of_parse_and_map(of_node, 0);
- res = devm_request_irq(&op->dev, pdata->irq,
- mpc85xx_pci_isr,
- IRQF_SHARED,
- "[EDAC] PCI err", pci);
- if (res < 0) {
- pr_err("%s: Unable to request irq %d for MPC85xx PCI err\n",
- __func__, pdata->irq);
- irq_dispose_mapping(pdata->irq);
- res = -ENODEV;
- goto err2;
- }
-
- pr_info(EDAC_MOD_STR " acquired irq %d for PCI Err\n",
- pdata->irq);
- }
-
- if (pdata->is_pcie) {
- /*
- * Enable all PCIe error interrupt & error detect except invalid
- * PEX_CONFIG_ADDR/PEX_CONFIG_DATA access interrupt generation
- * enable bit and invalid PEX_CONFIG_ADDR/PEX_CONFIG_DATA access
- * detection enable bit. Because PCIe bus code to initialize and
- * configure these PCIe devices on booting will use some invalid
- * PEX_CONFIG_ADDR/PEX_CONFIG_DATA, edac driver prints the much
- * notice information. So disable this detect to fix ugly print.
- */
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, ~0
- & ~PEX_ERR_ICCAIE_EN_BIT);
- out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR, 0
- | PEX_ERR_ICCAD_DISR_BIT);
- }
-
- devres_remove_group(&op->dev, mpc85xx_pci_err_probe);
- edac_dbg(3, "success\n");
- pr_info(EDAC_MOD_STR " PCI err registered\n");
-
- return 0;
-
-err2:
- edac_pci_del_device(&op->dev);
-err:
- edac_pci_free_ctl_info(pci);
- devres_release_group(&op->dev, mpc85xx_pci_err_probe);
- return res;
-}
-
-static const struct platform_device_id mpc85xx_pci_err_match[] = {
- {
- .name = "mpc85xx-pci-edac"
- },
- {}
-};
-
-static struct platform_driver mpc85xx_pci_err_driver = {
- .probe = mpc85xx_pci_err_probe,
- .id_table = mpc85xx_pci_err_match,
- .driver = {
- .name = "mpc85xx_pci_err",
- .suppress_bind_attrs = true,
- },
-};
-#endif /* CONFIG_PCI */
-
-/**************************** L2 Err device ***************************/
-
-/************************ L2 SYSFS parts ***********************************/
-
-static ssize_t mpc85xx_l2_inject_data_hi_show(struct edac_device_ctl_info
- *edac_dev, char *data)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJHI));
-}
-
-static ssize_t mpc85xx_l2_inject_data_lo_show(struct edac_device_ctl_info
- *edac_dev, char *data)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJLO));
-}
-
-static ssize_t mpc85xx_l2_inject_ctrl_show(struct edac_device_ctl_info
- *edac_dev, char *data)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJCTL));
-}
-
-static ssize_t mpc85xx_l2_inject_data_hi_store(struct edac_device_ctl_info
- *edac_dev, const char *data,
- size_t count)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJHI,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-static ssize_t mpc85xx_l2_inject_data_lo_store(struct edac_device_ctl_info
- *edac_dev, const char *data,
- size_t count)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJLO,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-static ssize_t mpc85xx_l2_inject_ctrl_store(struct edac_device_ctl_info
- *edac_dev, const char *data,
- size_t count)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJCTL,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-static struct edac_dev_sysfs_attribute mpc85xx_l2_sysfs_attributes[] = {
- {
- .attr = {
- .name = "inject_data_hi",
- .mode = (S_IRUGO | S_IWUSR)
- },
- .show = mpc85xx_l2_inject_data_hi_show,
- .store = mpc85xx_l2_inject_data_hi_store},
- {
- .attr = {
- .name = "inject_data_lo",
- .mode = (S_IRUGO | S_IWUSR)
- },
- .show = mpc85xx_l2_inject_data_lo_show,
- .store = mpc85xx_l2_inject_data_lo_store},
- {
- .attr = {
- .name = "inject_ctrl",
- .mode = (S_IRUGO | S_IWUSR)
- },
- .show = mpc85xx_l2_inject_ctrl_show,
- .store = mpc85xx_l2_inject_ctrl_store},
-
- /* End of list */
- {
- .attr = {.name = NULL}
- }
-};
-
-static void mpc85xx_set_l2_sysfs_attributes(struct edac_device_ctl_info
- *edac_dev)
-{
- edac_dev->sysfs_attributes = mpc85xx_l2_sysfs_attributes;
-}
-
-/***************************** L2 ops ***********************************/
-
-static void mpc85xx_l2_check(struct edac_device_ctl_info *edac_dev)
-{
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET);
-
- if (!(err_detect & L2_EDE_MASK))
- return;
-
- pr_err("ECC Error in CPU L2 cache\n");
- pr_err("L2 Error Detect Register: 0x%08x\n", err_detect);
- pr_err("L2 Error Capture Data High Register: 0x%08x\n",
- in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTDATAHI));
- pr_err("L2 Error Capture Data Lo Register: 0x%08x\n",
- in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTDATALO));
- pr_err("L2 Error Syndrome Register: 0x%08x\n",
- in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTECC));
- pr_err("L2 Error Attributes Capture Register: 0x%08x\n",
- in_be32(pdata->l2_vbase + MPC85XX_L2_ERRATTR));
- pr_err("L2 Error Address Capture Register: 0x%08x\n",
- in_be32(pdata->l2_vbase + MPC85XX_L2_ERRADDR));
-
- /* clear error detect register */
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET, err_detect);
-
- if (err_detect & L2_EDE_CE_MASK)
- edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
-
- if (err_detect & L2_EDE_UE_MASK)
- edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
-}
-
-static irqreturn_t mpc85xx_l2_isr(int irq, void *dev_id)
-{
- struct edac_device_ctl_info *edac_dev = dev_id;
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET);
-
- if (!(err_detect & L2_EDE_MASK))
- return IRQ_NONE;
-
- mpc85xx_l2_check(edac_dev);
-
- return IRQ_HANDLED;
-}
-
-static int mpc85xx_l2_err_probe(struct platform_device *op)
-{
- struct edac_device_ctl_info *edac_dev;
- struct mpc85xx_l2_pdata *pdata;
- struct resource r;
- int res;
-
- if (!devres_open_group(&op->dev, mpc85xx_l2_err_probe, GFP_KERNEL))
- return -ENOMEM;
-
- edac_dev = edac_device_alloc_ctl_info(sizeof(*pdata),
- "cpu", 1, "L", 1, 2, NULL, 0,
- edac_dev_idx);
- if (!edac_dev) {
- devres_release_group(&op->dev, mpc85xx_l2_err_probe);
- return -ENOMEM;
- }
-
- pdata = edac_dev->pvt_info;
- pdata->name = "mpc85xx_l2_err";
- pdata->irq = NO_IRQ;
- edac_dev->dev = &op->dev;
- dev_set_drvdata(edac_dev->dev, edac_dev);
- edac_dev->ctl_name = pdata->name;
- edac_dev->dev_name = pdata->name;
-
- res = of_address_to_resource(op->dev.of_node, 0, &r);
- if (res) {
- pr_err("%s: Unable to get resource for L2 err regs\n", __func__);
- goto err;
- }
-
- /* we only need the error registers */
- r.start += 0xe00;
-
- if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
- pdata->name)) {
- pr_err("%s: Error while requesting mem region\n", __func__);
- res = -EBUSY;
- goto err;
- }
-
- pdata->l2_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
- if (!pdata->l2_vbase) {
- pr_err("%s: Unable to setup L2 err regs\n", __func__);
- res = -ENOMEM;
- goto err;
- }
-
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET, ~0);
-
- orig_l2_err_disable = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS);
-
- /* clear the err_dis */
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS, 0);
-
- edac_dev->mod_name = EDAC_MOD_STR;
-
- if (edac_op_state == EDAC_OPSTATE_POLL)
- edac_dev->edac_check = mpc85xx_l2_check;
-
- mpc85xx_set_l2_sysfs_attributes(edac_dev);
-
- pdata->edac_idx = edac_dev_idx++;
-
- if (edac_device_add_device(edac_dev) > 0) {
- edac_dbg(3, "failed edac_device_add_device()\n");
- goto err;
- }
-
- if (edac_op_state == EDAC_OPSTATE_INT) {
- pdata->irq = irq_of_parse_and_map(op->dev.of_node, 0);
- res = devm_request_irq(&op->dev, pdata->irq,
- mpc85xx_l2_isr, IRQF_SHARED,
- "[EDAC] L2 err", edac_dev);
- if (res < 0) {
- pr_err("%s: Unable to request irq %d for MPC85xx L2 err\n",
- __func__, pdata->irq);
- irq_dispose_mapping(pdata->irq);
- res = -ENODEV;
- goto err2;
- }
-
- pr_info(EDAC_MOD_STR " acquired irq %d for L2 Err\n", pdata->irq);
-
- edac_dev->op_state = OP_RUNNING_INTERRUPT;
-
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINTEN, L2_EIE_MASK);
- }
-
- devres_remove_group(&op->dev, mpc85xx_l2_err_probe);
-
- edac_dbg(3, "success\n");
- pr_info(EDAC_MOD_STR " L2 err registered\n");
-
- return 0;
-
-err2:
- edac_device_del_device(&op->dev);
-err:
- devres_release_group(&op->dev, mpc85xx_l2_err_probe);
- edac_device_free_ctl_info(edac_dev);
- return res;
-}
-
-static int mpc85xx_l2_err_remove(struct platform_device *op)
-{
- struct edac_device_ctl_info *edac_dev = dev_get_drvdata(&op->dev);
- struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
-
- edac_dbg(0, "\n");
-
- if (edac_op_state == EDAC_OPSTATE_INT) {
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINTEN, 0);
- irq_dispose_mapping(pdata->irq);
- }
-
- out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS, orig_l2_err_disable);
- edac_device_del_device(&op->dev);
- edac_device_free_ctl_info(edac_dev);
- return 0;
-}
-
-static const struct of_device_id mpc85xx_l2_err_of_match[] = {
-/* deprecate the fsl,85.. forms in the future, 2.6.30? */
- { .compatible = "fsl,8540-l2-cache-controller", },
- { .compatible = "fsl,8541-l2-cache-controller", },
- { .compatible = "fsl,8544-l2-cache-controller", },
- { .compatible = "fsl,8548-l2-cache-controller", },
- { .compatible = "fsl,8555-l2-cache-controller", },
- { .compatible = "fsl,8568-l2-cache-controller", },
- { .compatible = "fsl,mpc8536-l2-cache-controller", },
- { .compatible = "fsl,mpc8540-l2-cache-controller", },
- { .compatible = "fsl,mpc8541-l2-cache-controller", },
- { .compatible = "fsl,mpc8544-l2-cache-controller", },
- { .compatible = "fsl,mpc8548-l2-cache-controller", },
- { .compatible = "fsl,mpc8555-l2-cache-controller", },
- { .compatible = "fsl,mpc8560-l2-cache-controller", },
- { .compatible = "fsl,mpc8568-l2-cache-controller", },
- { .compatible = "fsl,mpc8569-l2-cache-controller", },
- { .compatible = "fsl,mpc8572-l2-cache-controller", },
- { .compatible = "fsl,p1020-l2-cache-controller", },
- { .compatible = "fsl,p1021-l2-cache-controller", },
- { .compatible = "fsl,p2020-l2-cache-controller", },
- {},
-};
-MODULE_DEVICE_TABLE(of, mpc85xx_l2_err_of_match);
-
-static struct platform_driver mpc85xx_l2_err_driver = {
- .probe = mpc85xx_l2_err_probe,
- .remove = mpc85xx_l2_err_remove,
- .driver = {
- .name = "mpc85xx_l2_err",
- .of_match_table = mpc85xx_l2_err_of_match,
- },
-};
-
/**************************** MC Err device ***************************/
/*
@@ -1021,7 +434,7 @@ static void mpc85xx_init_csrows(struct mem_ctl_info *mci)
}
}
-static int mpc85xx_mc_err_probe(struct platform_device *op)
+int mpc85xx_mc_err_probe(struct platform_device *op)
{
struct mem_ctl_info *mci;
struct edac_mc_layer layers[2];
@@ -1057,13 +470,15 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
res = of_address_to_resource(op->dev.of_node, 0, &r);
if (res) {
- pr_err("%s: Unable to get resource for MC err regs\n", __func__);
+ pr_err("%s: Unable to get resource for MC err regs\n",
+ __func__);
goto err;
}
if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
pdata->name)) {
- pr_err("%s: Error while requesting mem region\n", __func__);
+ pr_err("%s: Error while requesting mem region\n",
+ __func__);
res = -EBUSY;
goto err;
}
@@ -1089,7 +504,6 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
mci->edac_cap = EDAC_FLAG_SECDED;
mci->mod_name = EDAC_MOD_STR;
- mci->mod_ver = MPC85XX_REVISION;
if (edac_op_state == EDAC_OPSTATE_POLL)
mci->edac_check = mpc85xx_mc_check;
@@ -1132,13 +546,14 @@ static int mpc85xx_mc_err_probe(struct platform_device *op)
"[EDAC] MC err", mci);
if (res < 0) {
pr_err("%s: Unable to request irq %d for MPC85xx DRAM ERR\n",
- __func__, pdata->irq);
+ __func__, pdata->irq);
irq_dispose_mapping(pdata->irq);
res = -ENODEV;
goto err2;
}
- pr_info(EDAC_MOD_STR " acquired irq %d for MC\n", pdata->irq);
+ pr_info(EDAC_MOD_STR " acquired irq %d for MC\n",
+ pdata->irq);
}
devres_remove_group(&op->dev, mpc85xx_mc_err_probe);
@@ -1155,7 +570,7 @@ err:
return res;
}
-static int mpc85xx_mc_err_remove(struct platform_device *op)
+int mpc85xx_mc_err_remove(struct platform_device *op)
{
struct mem_ctl_info *mci = dev_get_drvdata(&op->dev);
struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
@@ -1175,86 +590,3 @@ static int mpc85xx_mc_err_remove(struct platform_device *op)
edac_mc_free(mci);
return 0;
}
-
-static const struct of_device_id mpc85xx_mc_err_of_match[] = {
-/* deprecate the fsl,85.. forms in the future, 2.6.30? */
- { .compatible = "fsl,8540-memory-controller", },
- { .compatible = "fsl,8541-memory-controller", },
- { .compatible = "fsl,8544-memory-controller", },
- { .compatible = "fsl,8548-memory-controller", },
- { .compatible = "fsl,8555-memory-controller", },
- { .compatible = "fsl,8568-memory-controller", },
- { .compatible = "fsl,mpc8536-memory-controller", },
- { .compatible = "fsl,mpc8540-memory-controller", },
- { .compatible = "fsl,mpc8541-memory-controller", },
- { .compatible = "fsl,mpc8544-memory-controller", },
- { .compatible = "fsl,mpc8548-memory-controller", },
- { .compatible = "fsl,mpc8555-memory-controller", },
- { .compatible = "fsl,mpc8560-memory-controller", },
- { .compatible = "fsl,mpc8568-memory-controller", },
- { .compatible = "fsl,mpc8569-memory-controller", },
- { .compatible = "fsl,mpc8572-memory-controller", },
- { .compatible = "fsl,mpc8349-memory-controller", },
- { .compatible = "fsl,p1020-memory-controller", },
- { .compatible = "fsl,p1021-memory-controller", },
- { .compatible = "fsl,p2020-memory-controller", },
- { .compatible = "fsl,qoriq-memory-controller", },
- {},
-};
-MODULE_DEVICE_TABLE(of, mpc85xx_mc_err_of_match);
-
-static struct platform_driver mpc85xx_mc_err_driver = {
- .probe = mpc85xx_mc_err_probe,
- .remove = mpc85xx_mc_err_remove,
- .driver = {
- .name = "mpc85xx_mc_err",
- .of_match_table = mpc85xx_mc_err_of_match,
- },
-};
-
-static struct platform_driver * const drivers[] = {
- &mpc85xx_mc_err_driver,
- &mpc85xx_l2_err_driver,
-#ifdef CONFIG_PCI
- &mpc85xx_pci_err_driver,
-#endif
-};
-
-static int __init mpc85xx_mc_init(void)
-{
- int res = 0;
- u32 __maybe_unused pvr = 0;
-
- pr_info("Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software\n");
-
- /* make sure error reporting method is sane */
- switch (edac_op_state) {
- case EDAC_OPSTATE_POLL:
- case EDAC_OPSTATE_INT:
- break;
- default:
- edac_op_state = EDAC_OPSTATE_INT;
- break;
- }
-
- res = platform_register_drivers(drivers, ARRAY_SIZE(drivers));
- if (res)
- pr_warn(EDAC_MOD_STR "drivers fail to register\n");
-
- return 0;
-}
-
-module_init(mpc85xx_mc_init);
-
-static void __exit mpc85xx_mc_exit(void)
-{
- platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
-}
-
-module_exit(mpc85xx_mc_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Montavista Software, Inc.");
-module_param(edac_op_state, int, 0444);
-MODULE_PARM_DESC(edac_op_state,
- "EDAC Error Reporting state: 0=Poll, 2=Interrupt");
diff --git a/drivers/edac/mpc85xx_edac.h b/drivers/edac/fsl_ddr_edac.h
similarity index 43%
copy from drivers/edac/mpc85xx_edac.h
copy to drivers/edac/fsl_ddr_edac.h
index 9352e88..2f2c2b1 100644
--- a/drivers/edac/mpc85xx_edac.h
+++ b/drivers/edac/fsl_ddr_edac.h
@@ -1,5 +1,10 @@
/*
- * Freescale MPC85xx Memory Controller kernel module
+ * 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.
+ *
* Author: Dave Jiang <djiang@...sta.com>
*
* 2006-2007 (c) MontaVista Software, Inc. This file is licensed under
@@ -8,17 +13,11 @@
* or implied.
*
*/
-#ifndef _MPC85XX_EDAC_H_
-#define _MPC85XX_EDAC_H_
-
-#define MPC85XX_REVISION " Ver: 2.0.0"
-#define EDAC_MOD_STR "MPC85xx_edac"
-
-#define mpc85xx_printk(level, fmt, arg...) \
- edac_printk(level, "MPC85xx", fmt, ##arg)
+#ifndef _FSL_DDR_EDAC_H_
+#define _FSL_DDR_EDAC_H_
#define mpc85xx_mc_printk(mci, level, fmt, arg...) \
- edac_mc_chipset_printk(mci, level, "MPC85xx", fmt, ##arg)
+ edac_mc_chipset_printk(mci, level, "FSL_DDR", fmt, ##arg)
/*
* DRAM error defines
@@ -76,99 +75,12 @@
#define DDR_EDI_SBED 0x4 /* single-bit ECC error disable */
#define DDR_EDI_MBED 0x8 /* multi-bit ECC error disable */
-/*
- * L2 Err defines
- */
-#define MPC85XX_L2_ERRINJHI 0x0000
-#define MPC85XX_L2_ERRINJLO 0x0004
-#define MPC85XX_L2_ERRINJCTL 0x0008
-#define MPC85XX_L2_CAPTDATAHI 0x0020
-#define MPC85XX_L2_CAPTDATALO 0x0024
-#define MPC85XX_L2_CAPTECC 0x0028
-#define MPC85XX_L2_ERRDET 0x0040
-#define MPC85XX_L2_ERRDIS 0x0044
-#define MPC85XX_L2_ERRINTEN 0x0048
-#define MPC85XX_L2_ERRATTR 0x004c
-#define MPC85XX_L2_ERRADDR 0x0050
-#define MPC85XX_L2_ERRCTL 0x0058
-
-/* Error Interrupt Enable */
-#define L2_EIE_L2CFGINTEN 0x1
-#define L2_EIE_SBECCINTEN 0x4
-#define L2_EIE_MBECCINTEN 0x8
-#define L2_EIE_TPARINTEN 0x10
-#define L2_EIE_MASK (L2_EIE_L2CFGINTEN | L2_EIE_SBECCINTEN | \
- L2_EIE_MBECCINTEN | L2_EIE_TPARINTEN)
-
-/* Error Detect */
-#define L2_EDE_L2CFGERR 0x1
-#define L2_EDE_SBECCERR 0x4
-#define L2_EDE_MBECCERR 0x8
-#define L2_EDE_TPARERR 0x10
-#define L2_EDE_MULL2ERR 0x80000000
-
-#define L2_EDE_CE_MASK L2_EDE_SBECCERR
-#define L2_EDE_UE_MASK (L2_EDE_L2CFGERR | L2_EDE_MBECCERR | \
- L2_EDE_TPARERR)
-#define L2_EDE_MASK (L2_EDE_L2CFGERR | L2_EDE_SBECCERR | \
- L2_EDE_MBECCERR | L2_EDE_TPARERR | L2_EDE_MULL2ERR)
-
-/*
- * PCI Err defines
- */
-#define PCI_EDE_TOE 0x00000001
-#define PCI_EDE_SCM 0x00000002
-#define PCI_EDE_IRMSV 0x00000004
-#define PCI_EDE_ORMSV 0x00000008
-#define PCI_EDE_OWMSV 0x00000010
-#define PCI_EDE_TGT_ABRT 0x00000020
-#define PCI_EDE_MST_ABRT 0x00000040
-#define PCI_EDE_TGT_PERR 0x00000080
-#define PCI_EDE_MST_PERR 0x00000100
-#define PCI_EDE_RCVD_SERR 0x00000200
-#define PCI_EDE_ADDR_PERR 0x00000400
-#define PCI_EDE_MULTI_ERR 0x80000000
-
-#define PCI_EDE_PERR_MASK (PCI_EDE_TGT_PERR | PCI_EDE_MST_PERR | \
- PCI_EDE_ADDR_PERR)
-
-#define MPC85XX_PCI_ERR_DR 0x0000
-#define MPC85XX_PCI_ERR_CAP_DR 0x0004
-#define MPC85XX_PCI_ERR_EN 0x0008
-#define PEX_ERR_ICCAIE_EN_BIT 0x00020000
-#define MPC85XX_PCI_ERR_ATTRIB 0x000c
-#define MPC85XX_PCI_ERR_ADDR 0x0010
-#define PEX_ERR_ICCAD_DISR_BIT 0x00020000
-#define MPC85XX_PCI_ERR_EXT_ADDR 0x0014
-#define MPC85XX_PCI_ERR_DL 0x0018
-#define MPC85XX_PCI_ERR_DH 0x001c
-#define MPC85XX_PCI_GAS_TIMR 0x0020
-#define MPC85XX_PCI_PCIX_TIMR 0x0024
-#define MPC85XX_PCIE_ERR_CAP_R0 0x0028
-#define MPC85XX_PCIE_ERR_CAP_R1 0x002c
-#define MPC85XX_PCIE_ERR_CAP_R2 0x0030
-#define MPC85XX_PCIE_ERR_CAP_R3 0x0034
-
struct mpc85xx_mc_pdata {
char *name;
int edac_idx;
void __iomem *mc_vbase;
int irq;
};
-
-struct mpc85xx_l2_pdata {
- char *name;
- int edac_idx;
- void __iomem *l2_vbase;
- int irq;
-};
-
-struct mpc85xx_pci_pdata {
- char *name;
- bool is_pcie;
- int edac_idx;
- void __iomem *pci_vbase;
- int irq;
-};
-
+int mpc85xx_mc_err_probe(struct platform_device *op);
+int mpc85xx_mc_err_remove(struct platform_device *op);
#endif
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 5bfb4e7..71fac00 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -27,15 +27,12 @@
#include "edac_module.h"
#include "edac_core.h"
#include "mpc85xx_edac.h"
+#include "fsl_ddr_edac.h"
static int edac_dev_idx;
#ifdef CONFIG_PCI
static int edac_pci_idx;
#endif
-static int edac_mc_idx;
-
-static u32 orig_ddr_err_disable;
-static u32 orig_ddr_err_sbe;
/*
* PCI Err defines
@@ -47,100 +44,6 @@ static u32 orig_pci_err_en;
static u32 orig_l2_err_disable;
-/************************ MC SYSFS parts ***********************************/
-
-#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
-
-static ssize_t mpc85xx_mc_inject_data_hi_show(struct device *dev,
- struct device_attribute *mattr,
- char *data)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->mc_vbase +
- MPC85XX_MC_DATA_ERR_INJECT_HI));
-}
-
-static ssize_t mpc85xx_mc_inject_data_lo_show(struct device *dev,
- struct device_attribute *mattr,
- char *data)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->mc_vbase +
- MPC85XX_MC_DATA_ERR_INJECT_LO));
-}
-
-static ssize_t mpc85xx_mc_inject_ctrl_show(struct device *dev,
- struct device_attribute *mattr,
- char *data)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- return sprintf(data, "0x%08x",
- in_be32(pdata->mc_vbase + MPC85XX_MC_ECC_ERR_INJECT));
-}
-
-static ssize_t mpc85xx_mc_inject_data_hi_store(struct device *dev,
- struct device_attribute *mattr,
- const char *data, size_t count)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_DATA_ERR_INJECT_HI,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-static ssize_t mpc85xx_mc_inject_data_lo_store(struct device *dev,
- struct device_attribute *mattr,
- const char *data, size_t count)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_DATA_ERR_INJECT_LO,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-static ssize_t mpc85xx_mc_inject_ctrl_store(struct device *dev,
- struct device_attribute *mattr,
- const char *data, size_t count)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- if (isdigit(*data)) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_ECC_ERR_INJECT,
- simple_strtoul(data, NULL, 0));
- return count;
- }
- return 0;
-}
-
-DEVICE_ATTR(inject_data_hi, S_IRUGO | S_IWUSR,
- mpc85xx_mc_inject_data_hi_show, mpc85xx_mc_inject_data_hi_store);
-DEVICE_ATTR(inject_data_lo, S_IRUGO | S_IWUSR,
- mpc85xx_mc_inject_data_lo_show, mpc85xx_mc_inject_data_lo_store);
-DEVICE_ATTR(inject_ctrl, S_IRUGO | S_IWUSR,
- mpc85xx_mc_inject_ctrl_show, mpc85xx_mc_inject_ctrl_store);
-
-static struct attribute *mpc85xx_dev_attrs[] = {
- &dev_attr_inject_data_hi.attr,
- &dev_attr_inject_data_lo.attr,
- &dev_attr_inject_ctrl.attr,
- NULL
-};
-
-ATTRIBUTE_GROUPS(mpc85xx_dev);
-
/**************************** PCI Err device ***************************/
#ifdef CONFIG_PCI
@@ -719,463 +622,6 @@ static struct platform_driver mpc85xx_l2_err_driver = {
},
};
-/**************************** MC Err device ***************************/
-
-/*
- * Taken from table 8-55 in the MPC8641 User's Manual and/or 9-61 in the
- * MPC8572 User's Manual. Each line represents a syndrome bit column as a
- * 64-bit value, but split into an upper and lower 32-bit chunk. The labels
- * below correspond to Freescale's manuals.
- */
-static unsigned int ecc_table[16] = {
- /* MSB LSB */
- /* [0:31] [32:63] */
- 0xf00fe11e, 0xc33c0ff7, /* Syndrome bit 7 */
- 0x00ff00ff, 0x00fff0ff,
- 0x0f0f0f0f, 0x0f0fff00,
- 0x11113333, 0x7777000f,
- 0x22224444, 0x8888222f,
- 0x44448888, 0xffff4441,
- 0x8888ffff, 0x11118882,
- 0xffff1111, 0x22221114, /* Syndrome bit 0 */
-};
-
-/*
- * Calculate the correct ECC value for a 64-bit value specified by high:low
- */
-static u8 calculate_ecc(u32 high, u32 low)
-{
- u32 mask_low;
- u32 mask_high;
- int bit_cnt;
- u8 ecc = 0;
- int i;
- int j;
-
- for (i = 0; i < 8; i++) {
- mask_high = ecc_table[i * 2];
- mask_low = ecc_table[i * 2 + 1];
- bit_cnt = 0;
-
- for (j = 0; j < 32; j++) {
- if ((mask_high >> j) & 1)
- bit_cnt ^= (high >> j) & 1;
- if ((mask_low >> j) & 1)
- bit_cnt ^= (low >> j) & 1;
- }
-
- ecc |= bit_cnt << i;
- }
-
- return ecc;
-}
-
-/*
- * Create the syndrome code which is generated if the data line specified by
- * 'bit' failed. Eg generate an 8-bit codes seen in Table 8-55 in the MPC8641
- * User's Manual and 9-61 in the MPC8572 User's Manual.
- */
-static u8 syndrome_from_bit(unsigned int bit) {
- int i;
- u8 syndrome = 0;
-
- /*
- * Cycle through the upper or lower 32-bit portion of each value in
- * ecc_table depending on if 'bit' is in the upper or lower half of
- * 64-bit data.
- */
- for (i = bit < 32; i < 16; i += 2)
- syndrome |= ((ecc_table[i] >> (bit % 32)) & 1) << (i / 2);
-
- return syndrome;
-}
-
-/*
- * Decode data and ecc syndrome to determine what went wrong
- * Note: This can only decode single-bit errors
- */
-static void sbe_ecc_decode(u32 cap_high, u32 cap_low, u32 cap_ecc,
- int *bad_data_bit, int *bad_ecc_bit)
-{
- int i;
- u8 syndrome;
-
- *bad_data_bit = -1;
- *bad_ecc_bit = -1;
-
- /*
- * Calculate the ECC of the captured data and XOR it with the captured
- * ECC to find an ECC syndrome value we can search for
- */
- syndrome = calculate_ecc(cap_high, cap_low) ^ cap_ecc;
-
- /* Check if a data line is stuck... */
- for (i = 0; i < 64; i++) {
- if (syndrome == syndrome_from_bit(i)) {
- *bad_data_bit = i;
- return;
- }
- }
-
- /* If data is correct, check ECC bits for errors... */
- for (i = 0; i < 8; i++) {
- if ((syndrome >> i) & 0x1) {
- *bad_ecc_bit = i;
- return;
- }
- }
-}
-
-#define make64(high, low) (((u64)(high) << 32) | (low))
-
-static void mpc85xx_mc_check(struct mem_ctl_info *mci)
-{
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- struct csrow_info *csrow;
- u32 bus_width;
- u32 err_detect;
- u32 syndrome;
- u64 err_addr;
- u32 pfn;
- int row_index;
- u32 cap_high;
- u32 cap_low;
- int bad_data_bit;
- int bad_ecc_bit;
-
- err_detect = in_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT);
- if (!err_detect)
- return;
-
- mpc85xx_mc_printk(mci, KERN_ERR, "Err Detect Register: %#8.8x\n",
- err_detect);
-
- /* no more processing if not ECC bit errors */
- if (!(err_detect & (DDR_EDE_SBE | DDR_EDE_MBE))) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, err_detect);
- return;
- }
-
- syndrome = in_be32(pdata->mc_vbase + MPC85XX_MC_CAPTURE_ECC);
-
- /* Mask off appropriate bits of syndrome based on bus width */
- bus_width = (in_be32(pdata->mc_vbase + MPC85XX_MC_DDR_SDRAM_CFG) &
- DSC_DBW_MASK) ? 32 : 64;
- if (bus_width == 64)
- syndrome &= 0xff;
- else
- syndrome &= 0xffff;
-
- err_addr = make64(
- in_be32(pdata->mc_vbase + MPC85XX_MC_CAPTURE_EXT_ADDRESS),
- in_be32(pdata->mc_vbase + MPC85XX_MC_CAPTURE_ADDRESS));
- pfn = err_addr >> PAGE_SHIFT;
-
- for (row_index = 0; row_index < mci->nr_csrows; row_index++) {
- csrow = mci->csrows[row_index];
- if ((pfn >= csrow->first_page) && (pfn <= csrow->last_page))
- break;
- }
-
- cap_high = in_be32(pdata->mc_vbase + MPC85XX_MC_CAPTURE_DATA_HI);
- cap_low = in_be32(pdata->mc_vbase + MPC85XX_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)) {
- sbe_ecc_decode(cap_high, cap_low, syndrome,
- &bad_data_bit, &bad_ecc_bit);
-
- if (bad_data_bit != -1)
- mpc85xx_mc_printk(mci, KERN_ERR,
- "Faulty Data bit: %d\n", bad_data_bit);
- if (bad_ecc_bit != -1)
- mpc85xx_mc_printk(mci, KERN_ERR,
- "Faulty ECC bit: %d\n", bad_ecc_bit);
-
- mpc85xx_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));
- }
-
- mpc85xx_mc_printk(mci, KERN_ERR,
- "Captured Data / ECC:\t%#8.8x_%08x / %#2.2x\n",
- cap_high, cap_low, syndrome);
- mpc85xx_mc_printk(mci, KERN_ERR, "Err addr: %#8.8llx\n", err_addr);
- mpc85xx_mc_printk(mci, KERN_ERR, "PFN: %#8.8x\n", pfn);
-
- /* we are out of range */
- if (row_index == mci->nr_csrows)
- mpc85xx_mc_printk(mci, KERN_ERR, "PFN out of range!\n");
-
- if (err_detect & DDR_EDE_SBE)
- edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
- pfn, err_addr & ~PAGE_MASK, syndrome,
- row_index, 0, -1,
- mci->ctl_name, "");
-
- if (err_detect & DDR_EDE_MBE)
- edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
- pfn, err_addr & ~PAGE_MASK, syndrome,
- row_index, 0, -1,
- mci->ctl_name, "");
-
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, err_detect);
-}
-
-static irqreturn_t mpc85xx_mc_isr(int irq, void *dev_id)
-{
- struct mem_ctl_info *mci = dev_id;
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- u32 err_detect;
-
- err_detect = in_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT);
- if (!err_detect)
- return IRQ_NONE;
-
- mpc85xx_mc_check(mci);
-
- return IRQ_HANDLED;
-}
-
-static void mpc85xx_init_csrows(struct mem_ctl_info *mci)
-{
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
- struct csrow_info *csrow;
- struct dimm_info *dimm;
- u32 sdram_ctl;
- u32 sdtype;
- enum mem_type mtype;
- u32 cs_bnds;
- int index;
-
- sdram_ctl = in_be32(pdata->mc_vbase + MPC85XX_MC_DDR_SDRAM_CFG);
-
- sdtype = sdram_ctl & DSC_SDTYPE_MASK;
- if (sdram_ctl & DSC_RD_EN) {
- switch (sdtype) {
- case DSC_SDTYPE_DDR:
- mtype = MEM_RDDR;
- break;
- case DSC_SDTYPE_DDR2:
- mtype = MEM_RDDR2;
- break;
- case DSC_SDTYPE_DDR3:
- mtype = MEM_RDDR3;
- break;
- default:
- mtype = MEM_UNKNOWN;
- break;
- }
- } else {
- switch (sdtype) {
- case DSC_SDTYPE_DDR:
- mtype = MEM_DDR;
- break;
- case DSC_SDTYPE_DDR2:
- mtype = MEM_DDR2;
- break;
- case DSC_SDTYPE_DDR3:
- mtype = MEM_DDR3;
- break;
- default:
- mtype = MEM_UNKNOWN;
- break;
- }
- }
-
- for (index = 0; index < mci->nr_csrows; index++) {
- u32 start;
- u32 end;
-
- csrow = mci->csrows[index];
- dimm = csrow->channels[0]->dimm;
-
- cs_bnds = in_be32(pdata->mc_vbase + MPC85XX_MC_CS_BNDS_0 +
- (index * MPC85XX_MC_CS_BNDS_OFS));
-
- start = (cs_bnds & 0xffff0000) >> 16;
- end = (cs_bnds & 0x0000ffff);
-
- if (start == end)
- continue; /* not populated */
-
- start <<= (24 - PAGE_SHIFT);
- end <<= (24 - PAGE_SHIFT);
- end |= (1 << (24 - PAGE_SHIFT)) - 1;
-
- csrow->first_page = start;
- csrow->last_page = end;
-
- dimm->nr_pages = end + 1 - start;
- dimm->grain = 8;
- dimm->mtype = mtype;
- dimm->dtype = DEV_UNKNOWN;
- if (sdram_ctl & DSC_X32_EN)
- dimm->dtype = DEV_X32;
- dimm->edac_mode = EDAC_SECDED;
- }
-}
-
-static int mpc85xx_mc_err_probe(struct platform_device *op)
-{
- struct mem_ctl_info *mci;
- struct edac_mc_layer layers[2];
- struct mpc85xx_mc_pdata *pdata;
- struct resource r;
- u32 sdram_ctl;
- int res;
-
- if (!devres_open_group(&op->dev, mpc85xx_mc_err_probe, GFP_KERNEL))
- return -ENOMEM;
-
- layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
- layers[0].size = 4;
- layers[0].is_virt_csrow = true;
- layers[1].type = EDAC_MC_LAYER_CHANNEL;
- layers[1].size = 1;
- layers[1].is_virt_csrow = false;
- mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), layers,
- sizeof(*pdata));
- if (!mci) {
- devres_release_group(&op->dev, mpc85xx_mc_err_probe);
- return -ENOMEM;
- }
-
- pdata = mci->pvt_info;
- pdata->name = "mpc85xx_mc_err";
- pdata->irq = NO_IRQ;
- mci->pdev = &op->dev;
- pdata->edac_idx = edac_mc_idx++;
- dev_set_drvdata(mci->pdev, mci);
- mci->ctl_name = pdata->name;
- mci->dev_name = pdata->name;
-
- res = of_address_to_resource(op->dev.of_node, 0, &r);
- if (res) {
- pr_err("%s: Unable to get resource for MC err regs\n", __func__);
- goto err;
- }
-
- if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
- pdata->name)) {
- pr_err("%s: Error while requesting mem region\n", __func__);
- res = -EBUSY;
- goto err;
- }
-
- pdata->mc_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
- if (!pdata->mc_vbase) {
- pr_err("%s: Unable to setup MC err regs\n", __func__);
- res = -ENOMEM;
- goto err;
- }
-
- sdram_ctl = in_be32(pdata->mc_vbase + MPC85XX_MC_DDR_SDRAM_CFG);
- if (!(sdram_ctl & DSC_ECC_EN)) {
- /* no ECC */
- pr_warn("%s: No ECC DIMMs discovered\n", __func__);
- res = -ENODEV;
- goto err;
- }
-
- edac_dbg(3, "init mci\n");
- mci->mtype_cap = MEM_FLAG_RDDR | MEM_FLAG_RDDR2 |
- MEM_FLAG_DDR | MEM_FLAG_DDR2;
- mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
- mci->edac_cap = EDAC_FLAG_SECDED;
- mci->mod_name = EDAC_MOD_STR;
- mci->mod_ver = MPC85XX_REVISION;
-
- if (edac_op_state == EDAC_OPSTATE_POLL)
- mci->edac_check = mpc85xx_mc_check;
-
- mci->ctl_page_to_phys = NULL;
-
- mci->scrub_mode = SCRUB_SW_SRC;
-
- mpc85xx_init_csrows(mci);
-
- /* store the original error disable bits */
- orig_ddr_err_disable =
- in_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DISABLE);
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DISABLE, 0);
-
- /* clear all error bits */
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DETECT, ~0);
-
- if (edac_mc_add_mc_with_groups(mci, mpc85xx_dev_groups)) {
- edac_dbg(3, "failed edac_mc_add_mc()\n");
- goto err;
- }
-
- if (edac_op_state == EDAC_OPSTATE_INT) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_INT_EN,
- DDR_EIE_MBEE | DDR_EIE_SBEE);
-
- /* store the original error management threshold */
- orig_ddr_err_sbe = in_be32(pdata->mc_vbase +
- MPC85XX_MC_ERR_SBE) & 0xff0000;
-
- /* set threshold to 1 error per interrupt */
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_SBE, 0x10000);
-
- /* register interrupts */
- pdata->irq = irq_of_parse_and_map(op->dev.of_node, 0);
- res = devm_request_irq(&op->dev, pdata->irq,
- mpc85xx_mc_isr,
- IRQF_SHARED,
- "[EDAC] MC err", mci);
- if (res < 0) {
- pr_err("%s: Unable to request irq %d for MPC85xx DRAM ERR\n",
- __func__, pdata->irq);
- irq_dispose_mapping(pdata->irq);
- res = -ENODEV;
- goto err2;
- }
-
- pr_info(EDAC_MOD_STR " acquired irq %d for MC\n", pdata->irq);
- }
-
- devres_remove_group(&op->dev, mpc85xx_mc_err_probe);
- edac_dbg(3, "success\n");
- pr_info(EDAC_MOD_STR " MC err registered\n");
-
- return 0;
-
-err2:
- edac_mc_del_mc(&op->dev);
-err:
- devres_release_group(&op->dev, mpc85xx_mc_err_probe);
- edac_mc_free(mci);
- return res;
-}
-
-static int mpc85xx_mc_err_remove(struct platform_device *op)
-{
- struct mem_ctl_info *mci = dev_get_drvdata(&op->dev);
- struct mpc85xx_mc_pdata *pdata = mci->pvt_info;
-
- edac_dbg(0, "\n");
-
- if (edac_op_state == EDAC_OPSTATE_INT) {
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_INT_EN, 0);
- irq_dispose_mapping(pdata->irq);
- }
-
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_DISABLE,
- orig_ddr_err_disable);
- out_be32(pdata->mc_vbase + MPC85XX_MC_ERR_SBE, orig_ddr_err_sbe);
-
- edac_mc_del_mc(&op->dev);
- edac_mc_free(mci);
- return 0;
-}
-
static const struct of_device_id mpc85xx_mc_err_of_match[] = {
/* deprecate the fsl,85.. forms in the future, 2.6.30? */
{ .compatible = "fsl,8540-memory-controller", },
diff --git a/drivers/edac/mpc85xx_edac.h b/drivers/edac/mpc85xx_edac.h
index 9352e88..3f6fb16 100644
--- a/drivers/edac/mpc85xx_edac.h
+++ b/drivers/edac/mpc85xx_edac.h
@@ -17,65 +17,6 @@
#define mpc85xx_printk(level, fmt, arg...) \
edac_printk(level, "MPC85xx", fmt, ##arg)
-#define mpc85xx_mc_printk(mci, level, fmt, arg...) \
- edac_mc_chipset_printk(mci, level, "MPC85xx", fmt, ##arg)
-
-/*
- * DRAM error defines
- */
-
-/* DDR_SDRAM_CFG */
-#define MPC85XX_MC_DDR_SDRAM_CFG 0x0110
-#define MPC85XX_MC_CS_BNDS_0 0x0000
-#define MPC85XX_MC_CS_BNDS_1 0x0008
-#define MPC85XX_MC_CS_BNDS_2 0x0010
-#define MPC85XX_MC_CS_BNDS_3 0x0018
-#define MPC85XX_MC_CS_BNDS_OFS 0x0008
-
-#define MPC85XX_MC_DATA_ERR_INJECT_HI 0x0e00
-#define MPC85XX_MC_DATA_ERR_INJECT_LO 0x0e04
-#define MPC85XX_MC_ECC_ERR_INJECT 0x0e08
-#define MPC85XX_MC_CAPTURE_DATA_HI 0x0e20
-#define MPC85XX_MC_CAPTURE_DATA_LO 0x0e24
-#define MPC85XX_MC_CAPTURE_ECC 0x0e28
-#define MPC85XX_MC_ERR_DETECT 0x0e40
-#define MPC85XX_MC_ERR_DISABLE 0x0e44
-#define MPC85XX_MC_ERR_INT_EN 0x0e48
-#define MPC85XX_MC_CAPTURE_ATRIBUTES 0x0e4c
-#define MPC85XX_MC_CAPTURE_ADDRESS 0x0e50
-#define MPC85XX_MC_CAPTURE_EXT_ADDRESS 0x0e54
-#define MPC85XX_MC_ERR_SBE 0x0e58
-
-#define DSC_MEM_EN 0x80000000
-#define DSC_ECC_EN 0x20000000
-#define DSC_RD_EN 0x10000000
-#define DSC_DBW_MASK 0x00180000
-#define DSC_DBW_32 0x00080000
-#define DSC_DBW_64 0x00000000
-
-#define DSC_SDTYPE_MASK 0x07000000
-
-#define DSC_SDTYPE_DDR 0x02000000
-#define DSC_SDTYPE_DDR2 0x03000000
-#define DSC_SDTYPE_DDR3 0x07000000
-#define DSC_X32_EN 0x00000020
-
-/* Err_Int_En */
-#define DDR_EIE_MSEE 0x1 /* memory select */
-#define DDR_EIE_SBEE 0x4 /* single-bit ECC error */
-#define DDR_EIE_MBEE 0x8 /* multi-bit ECC error */
-
-/* Err_Detect */
-#define DDR_EDE_MSE 0x1 /* memory select */
-#define DDR_EDE_SBE 0x4 /* single-bit ECC error */
-#define DDR_EDE_MBE 0x8 /* multi-bit ECC error */
-#define DDR_EDE_MME 0x80000000 /* multiple memory errors */
-
-/* Err_Disable */
-#define DDR_EDI_MSED 0x1 /* memory select disable */
-#define DDR_EDI_SBED 0x4 /* single-bit ECC error disable */
-#define DDR_EDI_MBED 0x8 /* multi-bit ECC error disable */
-
/*
* L2 Err defines
*/
@@ -149,13 +90,6 @@
#define MPC85XX_PCIE_ERR_CAP_R2 0x0030
#define MPC85XX_PCIE_ERR_CAP_R3 0x0034
-struct mpc85xx_mc_pdata {
- char *name;
- int edac_idx;
- void __iomem *mc_vbase;
- int irq;
-};
-
struct mpc85xx_l2_pdata {
char *name;
int edac_idx;
--
2.7.4
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