diff options
Diffstat (limited to 'drivers/edac/mv64x60_edac.c')
| -rw-r--r-- | drivers/edac/mv64x60_edac.c | 883 |
1 files changed, 0 insertions, 883 deletions
diff --git a/drivers/edac/mv64x60_edac.c b/drivers/edac/mv64x60_edac.c deleted file mode 100644 index 3c68bb525d5d..000000000000 --- a/drivers/edac/mv64x60_edac.c +++ /dev/null @@ -1,883 +0,0 @@ -/* - * Marvell MV64x60 Memory Controller kernel module for PPC platforms - * - * Author: Dave Jiang <djiang@mvista.com> - * - * 2006-2007 (c) MontaVista Software, Inc. This file is licensed under - * the terms of the GNU General Public License version 2. This program - * is licensed "as is" without any warranty of any kind, whether express - * or implied. - * - */ - -#include <linux/module.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/io.h> -#include <linux/edac.h> -#include <linux/gfp.h> - -#include "edac_module.h" -#include "mv64x60_edac.h" - -static const char *mv64x60_ctl_name = "MV64x60"; -static int edac_dev_idx; -static int edac_pci_idx; -static int edac_mc_idx; - -/*********************** PCI err device **********************************/ -#ifdef CONFIG_PCI -static void mv64x60_pci_check(struct edac_pci_ctl_info *pci) -{ - struct mv64x60_pci_pdata *pdata = pci->pvt_info; - u32 cause; - - cause = readl(pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE); - if (!cause) - return; - - printk(KERN_ERR "Error in PCI %d Interface\n", pdata->pci_hose); - printk(KERN_ERR "Cause register: 0x%08x\n", cause); - printk(KERN_ERR "Address Low: 0x%08x\n", - readl(pdata->pci_vbase + MV64X60_PCI_ERROR_ADDR_LO)); - printk(KERN_ERR "Address High: 0x%08x\n", - readl(pdata->pci_vbase + MV64X60_PCI_ERROR_ADDR_HI)); - printk(KERN_ERR "Attribute: 0x%08x\n", - readl(pdata->pci_vbase + MV64X60_PCI_ERROR_ATTR)); - printk(KERN_ERR "Command: 0x%08x\n", - readl(pdata->pci_vbase + MV64X60_PCI_ERROR_CMD)); - writel(~cause, pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE); - - if (cause & MV64X60_PCI_PE_MASK) - edac_pci_handle_pe(pci, pci->ctl_name); - - if (!(cause & MV64X60_PCI_PE_MASK)) - edac_pci_handle_npe(pci, pci->ctl_name); -} - -static irqreturn_t mv64x60_pci_isr(int irq, void *dev_id) -{ - struct edac_pci_ctl_info *pci = dev_id; - struct mv64x60_pci_pdata *pdata = pci->pvt_info; - u32 val; - - val = readl(pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE); - if (!val) - return IRQ_NONE; - - mv64x60_pci_check(pci); - - return IRQ_HANDLED; -} - -/* - * Bit 0 of MV64x60_PCIx_ERR_MASK does not exist on the 64360 and because of - * errata FEr-#11 and FEr-##16 for the 64460, it should be 0 on that chip as - * well. IOW, don't set bit 0. - */ - -/* Erratum FEr PCI-#16: clear bit 0 of PCI SERRn Mask reg. */ -static int __init mv64x60_pci_fixup(struct platform_device *pdev) -{ - struct resource *r; - void __iomem *pci_serr; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "PCI err regs\n", __func__); - return -ENOENT; - } - - pci_serr = ioremap(r->start, resource_size(r)); - if (!pci_serr) - return -ENOMEM; - - writel(readl(pci_serr) & ~0x1, pci_serr); - iounmap(pci_serr); - - return 0; -} - -static int mv64x60_pci_err_probe(struct platform_device *pdev) -{ - struct edac_pci_ctl_info *pci; - struct mv64x60_pci_pdata *pdata; - struct resource *r; - int res = 0; - - if (!devres_open_group(&pdev->dev, mv64x60_pci_err_probe, GFP_KERNEL)) - return -ENOMEM; - - pci = edac_pci_alloc_ctl_info(sizeof(*pdata), "mv64x60_pci_err"); - if (!pci) - return -ENOMEM; - - pdata = pci->pvt_info; - - pdata->pci_hose = pdev->id; - pdata->name = "mv64x60_pci_err"; - platform_set_drvdata(pdev, pci); - pci->dev = &pdev->dev; - pci->dev_name = dev_name(&pdev->dev); - pci->mod_name = EDAC_MOD_STR; - pci->ctl_name = pdata->name; - - if (edac_op_state == EDAC_OPSTATE_POLL) - pci->edac_check = mv64x60_pci_check; - - pdata->edac_idx = edac_pci_idx++; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "PCI err regs\n", __func__); - res = -ENOENT; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, - r->start, - resource_size(r), - pdata->name)) { - printk(KERN_ERR "%s: Error while requesting mem region\n", - __func__); - res = -EBUSY; - goto err; - } - - pdata->pci_vbase = devm_ioremap(&pdev->dev, - r->start, - resource_size(r)); - if (!pdata->pci_vbase) { - printk(KERN_ERR "%s: Unable to setup PCI err regs\n", __func__); - res = -ENOMEM; - goto err; - } - - res = mv64x60_pci_fixup(pdev); - if (res < 0) { - printk(KERN_ERR "%s: PCI fixup failed\n", __func__); - goto err; - } - - writel(0, pdata->pci_vbase + MV64X60_PCI_ERROR_CAUSE); - writel(0, pdata->pci_vbase + MV64X60_PCI_ERROR_MASK); - writel(MV64X60_PCIx_ERR_MASK_VAL, - pdata->pci_vbase + MV64X60_PCI_ERROR_MASK); - - 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 = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, - pdata->irq, - mv64x60_pci_isr, - 0, - "[EDAC] PCI err", - pci); - if (res < 0) { - printk(KERN_ERR "%s: Unable to request irq %d for " - "MV64x60 PCI ERR\n", __func__, pdata->irq); - res = -ENODEV; - goto err2; - } - printk(KERN_INFO EDAC_MOD_STR " acquired irq %d for PCI Err\n", - pdata->irq); - } - - devres_remove_group(&pdev->dev, mv64x60_pci_err_probe); - - /* get this far and it's successful */ - edac_dbg(3, "success\n"); - - return 0; - -err2: - edac_pci_del_device(&pdev->dev); -err: - edac_pci_free_ctl_info(pci); - devres_release_group(&pdev->dev, mv64x60_pci_err_probe); - return res; -} - -static int mv64x60_pci_err_remove(struct platform_device *pdev) -{ - struct edac_pci_ctl_info *pci = platform_get_drvdata(pdev); - - edac_dbg(0, "\n"); - - edac_pci_del_device(&pdev->dev); - - edac_pci_free_ctl_info(pci); - - return 0; -} - -static struct platform_driver mv64x60_pci_err_driver = { - .probe = mv64x60_pci_err_probe, - .remove = mv64x60_pci_err_remove, - .driver = { - .name = "mv64x60_pci_err", - } -}; - -#endif /* CONFIG_PCI */ - -/*********************** SRAM err device **********************************/ -static void mv64x60_sram_check(struct edac_device_ctl_info *edac_dev) -{ - struct mv64x60_sram_pdata *pdata = edac_dev->pvt_info; - u32 cause; - - cause = readl(pdata->sram_vbase + MV64X60_SRAM_ERR_CAUSE); - if (!cause) - return; - - printk(KERN_ERR "Error in internal SRAM\n"); - printk(KERN_ERR "Cause register: 0x%08x\n", cause); - printk(KERN_ERR "Address Low: 0x%08x\n", - readl(pdata->sram_vbase + MV64X60_SRAM_ERR_ADDR_LO)); - printk(KERN_ERR "Address High: 0x%08x\n", - readl(pdata->sram_vbase + MV64X60_SRAM_ERR_ADDR_HI)); - printk(KERN_ERR "Data Low: 0x%08x\n", - readl(pdata->sram_vbase + MV64X60_SRAM_ERR_DATA_LO)); - printk(KERN_ERR "Data High: 0x%08x\n", - readl(pdata->sram_vbase + MV64X60_SRAM_ERR_DATA_HI)); - printk(KERN_ERR "Parity: 0x%08x\n", - readl(pdata->sram_vbase + MV64X60_SRAM_ERR_PARITY)); - writel(0, pdata->sram_vbase + MV64X60_SRAM_ERR_CAUSE); - - edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); -} - -static irqreturn_t mv64x60_sram_isr(int irq, void *dev_id) -{ - struct edac_device_ctl_info *edac_dev = dev_id; - struct mv64x60_sram_pdata *pdata = edac_dev->pvt_info; - u32 cause; - - cause = readl(pdata->sram_vbase + MV64X60_SRAM_ERR_CAUSE); - if (!cause) - return IRQ_NONE; - - mv64x60_sram_check(edac_dev); - - return IRQ_HANDLED; -} - -static int mv64x60_sram_err_probe(struct platform_device *pdev) -{ - struct edac_device_ctl_info *edac_dev; - struct mv64x60_sram_pdata *pdata; - struct resource *r; - int res = 0; - - if (!devres_open_group(&pdev->dev, mv64x60_sram_err_probe, GFP_KERNEL)) - return -ENOMEM; - - edac_dev = edac_device_alloc_ctl_info(sizeof(*pdata), - "sram", 1, NULL, 0, 0, NULL, 0, - edac_dev_idx); - if (!edac_dev) { - devres_release_group(&pdev->dev, mv64x60_sram_err_probe); - return -ENOMEM; - } - - pdata = edac_dev->pvt_info; - pdata->name = "mv64x60_sram_err"; - edac_dev->dev = &pdev->dev; - platform_set_drvdata(pdev, edac_dev); - edac_dev->dev_name = dev_name(&pdev->dev); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "SRAM err regs\n", __func__); - res = -ENOENT; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, - r->start, - resource_size(r), - pdata->name)) { - printk(KERN_ERR "%s: Error while request mem region\n", - __func__); - res = -EBUSY; - goto err; - } - - pdata->sram_vbase = devm_ioremap(&pdev->dev, - r->start, - resource_size(r)); - if (!pdata->sram_vbase) { - printk(KERN_ERR "%s: Unable to setup SRAM err regs\n", - __func__); - res = -ENOMEM; - goto err; - } - - /* setup SRAM err registers */ - writel(0, pdata->sram_vbase + MV64X60_SRAM_ERR_CAUSE); - - edac_dev->mod_name = EDAC_MOD_STR; - edac_dev->ctl_name = pdata->name; - - if (edac_op_state == EDAC_OPSTATE_POLL) - edac_dev->edac_check = mv64x60_sram_check; - - 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 = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, - pdata->irq, - mv64x60_sram_isr, - 0, - "[EDAC] SRAM err", - edac_dev); - if (res < 0) { - printk(KERN_ERR - "%s: Unable to request irq %d for " - "MV64x60 SRAM ERR\n", __func__, pdata->irq); - res = -ENODEV; - goto err2; - } - - printk(KERN_INFO EDAC_MOD_STR " acquired irq %d for SRAM Err\n", - pdata->irq); - } - - devres_remove_group(&pdev->dev, mv64x60_sram_err_probe); - - /* get this far and it's successful */ - edac_dbg(3, "success\n"); - - return 0; - -err2: - edac_device_del_device(&pdev->dev); -err: - devres_release_group(&pdev->dev, mv64x60_sram_err_probe); - edac_device_free_ctl_info(edac_dev); - return res; -} - -static int mv64x60_sram_err_remove(struct platform_device *pdev) -{ - struct edac_device_ctl_info *edac_dev = platform_get_drvdata(pdev); - - edac_dbg(0, "\n"); - - edac_device_del_device(&pdev->dev); - edac_device_free_ctl_info(edac_dev); - - return 0; -} - -static struct platform_driver mv64x60_sram_err_driver = { - .probe = mv64x60_sram_err_probe, - .remove = mv64x60_sram_err_remove, - .driver = { - .name = "mv64x60_sram_err", - } -}; - -/*********************** CPU err device **********************************/ -static void mv64x60_cpu_check(struct edac_device_ctl_info *edac_dev) -{ - struct mv64x60_cpu_pdata *pdata = edac_dev->pvt_info; - u32 cause; - - cause = readl(pdata->cpu_vbase[1] + MV64x60_CPU_ERR_CAUSE) & - MV64x60_CPU_CAUSE_MASK; - if (!cause) - return; - - printk(KERN_ERR "Error on CPU interface\n"); - printk(KERN_ERR "Cause register: 0x%08x\n", cause); - printk(KERN_ERR "Address Low: 0x%08x\n", - readl(pdata->cpu_vbase[0] + MV64x60_CPU_ERR_ADDR_LO)); - printk(KERN_ERR "Address High: 0x%08x\n", - readl(pdata->cpu_vbase[0] + MV64x60_CPU_ERR_ADDR_HI)); - printk(KERN_ERR "Data Low: 0x%08x\n", - readl(pdata->cpu_vbase[1] + MV64x60_CPU_ERR_DATA_LO)); - printk(KERN_ERR "Data High: 0x%08x\n", - readl(pdata->cpu_vbase[1] + MV64x60_CPU_ERR_DATA_HI)); - printk(KERN_ERR "Parity: 0x%08x\n", - readl(pdata->cpu_vbase[1] + MV64x60_CPU_ERR_PARITY)); - writel(0, pdata->cpu_vbase[1] + MV64x60_CPU_ERR_CAUSE); - - edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name); -} - -static irqreturn_t mv64x60_cpu_isr(int irq, void *dev_id) -{ - struct edac_device_ctl_info *edac_dev = dev_id; - struct mv64x60_cpu_pdata *pdata = edac_dev->pvt_info; - u32 cause; - - cause = readl(pdata->cpu_vbase[1] + MV64x60_CPU_ERR_CAUSE) & - MV64x60_CPU_CAUSE_MASK; - if (!cause) - return IRQ_NONE; - - mv64x60_cpu_check(edac_dev); - - return IRQ_HANDLED; -} - -static int mv64x60_cpu_err_probe(struct platform_device *pdev) -{ - struct edac_device_ctl_info *edac_dev; - struct resource *r; - struct mv64x60_cpu_pdata *pdata; - int res = 0; - - if (!devres_open_group(&pdev->dev, mv64x60_cpu_err_probe, GFP_KERNEL)) - return -ENOMEM; - - edac_dev = edac_device_alloc_ctl_info(sizeof(*pdata), - "cpu", 1, NULL, 0, 0, NULL, 0, - edac_dev_idx); - if (!edac_dev) { - devres_release_group(&pdev->dev, mv64x60_cpu_err_probe); - return -ENOMEM; - } - - pdata = edac_dev->pvt_info; - pdata->name = "mv64x60_cpu_err"; - edac_dev->dev = &pdev->dev; - platform_set_drvdata(pdev, edac_dev); - edac_dev->dev_name = dev_name(&pdev->dev); - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "CPU err regs\n", __func__); - res = -ENOENT; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, - r->start, - resource_size(r), - pdata->name)) { - printk(KERN_ERR "%s: Error while requesting mem region\n", - __func__); - res = -EBUSY; - goto err; - } - - pdata->cpu_vbase[0] = devm_ioremap(&pdev->dev, - r->start, - resource_size(r)); - if (!pdata->cpu_vbase[0]) { - printk(KERN_ERR "%s: Unable to setup CPU err regs\n", __func__); - res = -ENOMEM; - goto err; - } - - r = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "CPU err regs\n", __func__); - res = -ENOENT; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, - r->start, - resource_size(r), - pdata->name)) { - printk(KERN_ERR "%s: Error while requesting mem region\n", - __func__); - res = -EBUSY; - goto err; - } - - pdata->cpu_vbase[1] = devm_ioremap(&pdev->dev, - r->start, - resource_size(r)); - if (!pdata->cpu_vbase[1]) { - printk(KERN_ERR "%s: Unable to setup CPU err regs\n", __func__); - res = -ENOMEM; - goto err; - } - - /* setup CPU err registers */ - writel(0, pdata->cpu_vbase[1] + MV64x60_CPU_ERR_CAUSE); - writel(0, pdata->cpu_vbase[1] + MV64x60_CPU_ERR_MASK); - writel(0x000000ff, pdata->cpu_vbase[1] + MV64x60_CPU_ERR_MASK); - - edac_dev->mod_name = EDAC_MOD_STR; - edac_dev->ctl_name = pdata->name; - if (edac_op_state == EDAC_OPSTATE_POLL) - edac_dev->edac_check = mv64x60_cpu_check; - - 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 = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, - pdata->irq, - mv64x60_cpu_isr, - 0, - "[EDAC] CPU err", - edac_dev); - if (res < 0) { - printk(KERN_ERR - "%s: Unable to request irq %d for MV64x60 " - "CPU ERR\n", __func__, pdata->irq); - res = -ENODEV; - goto err2; - } - - printk(KERN_INFO EDAC_MOD_STR - " acquired irq %d for CPU Err\n", pdata->irq); - } - - devres_remove_group(&pdev->dev, mv64x60_cpu_err_probe); - - /* get this far and it's successful */ - edac_dbg(3, "success\n"); - - return 0; - -err2: - edac_device_del_device(&pdev->dev); -err: - devres_release_group(&pdev->dev, mv64x60_cpu_err_probe); - edac_device_free_ctl_info(edac_dev); - return res; -} - -static int mv64x60_cpu_err_remove(struct platform_device *pdev) -{ - struct edac_device_ctl_info *edac_dev = platform_get_drvdata(pdev); - - edac_dbg(0, "\n"); - - edac_device_del_device(&pdev->dev); - edac_device_free_ctl_info(edac_dev); - return 0; -} - -static struct platform_driver mv64x60_cpu_err_driver = { - .probe = mv64x60_cpu_err_probe, - .remove = mv64x60_cpu_err_remove, - .driver = { - .name = "mv64x60_cpu_err", - } -}; - -/*********************** DRAM err device **********************************/ - -static void mv64x60_mc_check(struct mem_ctl_info *mci) -{ - struct mv64x60_mc_pdata *pdata = mci->pvt_info; - u32 reg; - u32 err_addr; - u32 sdram_ecc; - u32 comp_ecc; - u32 syndrome; - - reg = readl(pdata->mc_vbase + MV64X60_SDRAM_ERR_ADDR); - if (!reg) - return; - - err_addr = reg & ~0x3; - sdram_ecc = readl(pdata->mc_vbase + MV64X60_SDRAM_ERR_ECC_RCVD); - comp_ecc = readl(pdata->mc_vbase + MV64X60_SDRAM_ERR_ECC_CALC); - syndrome = sdram_ecc ^ comp_ecc; - - /* first bit clear in ECC Err Reg, 1 bit error, correctable by HW */ - if (!(reg & 0x1)) - edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1, - err_addr >> PAGE_SHIFT, - err_addr & PAGE_MASK, syndrome, - 0, 0, -1, - mci->ctl_name, ""); - else /* 2 bit error, UE */ - edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1, - err_addr >> PAGE_SHIFT, - err_addr & PAGE_MASK, 0, - 0, 0, -1, - mci->ctl_name, ""); - - /* clear the error */ - writel(0, pdata->mc_vbase + MV64X60_SDRAM_ERR_ADDR); -} - -static irqreturn_t mv64x60_mc_isr(int irq, void *dev_id) -{ - struct mem_ctl_info *mci = dev_id; - struct mv64x60_mc_pdata *pdata = mci->pvt_info; - u32 reg; - - reg = readl(pdata->mc_vbase + MV64X60_SDRAM_ERR_ADDR); - if (!reg) - return IRQ_NONE; - - /* writing 0's to the ECC err addr in check function clears irq */ - mv64x60_mc_check(mci); - - return IRQ_HANDLED; -} - -static void get_total_mem(struct mv64x60_mc_pdata *pdata) -{ - struct device_node *np = NULL; - const unsigned int *reg; - - np = of_find_node_by_type(NULL, "memory"); - if (!np) - return; - - reg = of_get_property(np, "reg", NULL); - - pdata->total_mem = reg[1]; -} - -static void mv64x60_init_csrows(struct mem_ctl_info *mci, - struct mv64x60_mc_pdata *pdata) -{ - struct csrow_info *csrow; - struct dimm_info *dimm; - - u32 devtype; - u32 ctl; - - get_total_mem(pdata); - - ctl = readl(pdata->mc_vbase + MV64X60_SDRAM_CONFIG); - - csrow = mci->csrows[0]; - dimm = csrow->channels[0]->dimm; - - dimm->nr_pages = pdata->total_mem >> PAGE_SHIFT; - dimm->grain = 8; - - dimm->mtype = (ctl & MV64X60_SDRAM_REGISTERED) ? MEM_RDDR : MEM_DDR; - - devtype = (ctl >> 20) & 0x3; - switch (devtype) { - case 0x0: - dimm->dtype = DEV_X32; - break; - case 0x2: /* could be X8 too, but no way to tell */ - dimm->dtype = DEV_X16; - break; - case 0x3: - dimm->dtype = DEV_X4; - break; - default: - dimm->dtype = DEV_UNKNOWN; - break; - } - - dimm->edac_mode = EDAC_SECDED; -} - -static int mv64x60_mc_err_probe(struct platform_device *pdev) -{ - struct mem_ctl_info *mci; - struct edac_mc_layer layers[2]; - struct mv64x60_mc_pdata *pdata; - struct resource *r; - u32 ctl; - int res = 0; - - if (!devres_open_group(&pdev->dev, mv64x60_mc_err_probe, GFP_KERNEL)) - return -ENOMEM; - - layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; - layers[0].size = 1; - 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(struct mv64x60_mc_pdata)); - if (!mci) { - printk(KERN_ERR "%s: No memory for CPU err\n", __func__); - devres_release_group(&pdev->dev, mv64x60_mc_err_probe); - return -ENOMEM; - } - - pdata = mci->pvt_info; - mci->pdev = &pdev->dev; - platform_set_drvdata(pdev, mci); - pdata->name = "mv64x60_mc_err"; - mci->dev_name = dev_name(&pdev->dev); - pdata->edac_idx = edac_mc_idx++; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!r) { - printk(KERN_ERR "%s: Unable to get resource for " - "MC err regs\n", __func__); - res = -ENOENT; - goto err; - } - - if (!devm_request_mem_region(&pdev->dev, - r->start, - resource_size(r), - pdata->name)) { - printk(KERN_ERR "%s: Error while requesting mem region\n", - __func__); - res = -EBUSY; - goto err; - } - - pdata->mc_vbase = devm_ioremap(&pdev->dev, - r->start, - resource_size(r)); - if (!pdata->mc_vbase) { - printk(KERN_ERR "%s: Unable to setup MC err regs\n", __func__); - res = -ENOMEM; - goto err; - } - - ctl = readl(pdata->mc_vbase + MV64X60_SDRAM_CONFIG); - if (!(ctl & MV64X60_SDRAM_ECC)) { - /* Non-ECC RAM? */ - printk(KERN_WARNING "%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_DDR; - mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; - mci->edac_cap = EDAC_FLAG_SECDED; - mci->mod_name = EDAC_MOD_STR; - mci->ctl_name = mv64x60_ctl_name; - - if (edac_op_state == EDAC_OPSTATE_POLL) - mci->edac_check = mv64x60_mc_check; - - mci->ctl_page_to_phys = NULL; - - mci->scrub_mode = SCRUB_SW_SRC; - - mv64x60_init_csrows(mci, pdata); - - /* setup MC registers */ - writel(0, pdata->mc_vbase + MV64X60_SDRAM_ERR_ADDR); - ctl = readl(pdata->mc_vbase + MV64X60_SDRAM_ERR_ECC_CNTL); - ctl = (ctl & 0xff00ffff) | 0x10000; - writel(ctl, pdata->mc_vbase + MV64X60_SDRAM_ERR_ECC_CNTL); - - res = edac_mc_add_mc(mci); - if (res) { - edac_dbg(3, "failed edac_mc_add_mc()\n"); - goto err; - } - - if (edac_op_state == EDAC_OPSTATE_INT) { - /* acquire interrupt that reports errors */ - pdata->irq = platform_get_irq(pdev, 0); - res = devm_request_irq(&pdev->dev, - pdata->irq, - mv64x60_mc_isr, - 0, - "[EDAC] MC err", - mci); - if (res < 0) { - printk(KERN_ERR "%s: Unable to request irq %d for " - "MV64x60 DRAM ERR\n", __func__, pdata->irq); - res = -ENODEV; - goto err2; - } - - printk(KERN_INFO EDAC_MOD_STR " acquired irq %d for MC Err\n", - pdata->irq); - } - - /* get this far and it's successful */ - edac_dbg(3, "success\n"); - - return 0; - -err2: - edac_mc_del_mc(&pdev->dev); -err: - devres_release_group(&pdev->dev, mv64x60_mc_err_probe); - edac_mc_free(mci); - return res; -} - -static int mv64x60_mc_err_remove(struct platform_device *pdev) -{ - struct mem_ctl_info *mci = platform_get_drvdata(pdev); - - edac_dbg(0, "\n"); - - edac_mc_del_mc(&pdev->dev); - edac_mc_free(mci); - return 0; -} - -static struct platform_driver mv64x60_mc_err_driver = { - .probe = mv64x60_mc_err_probe, - .remove = mv64x60_mc_err_remove, - .driver = { - .name = "mv64x60_mc_err", - } -}; - -static struct platform_driver * const drivers[] = { - &mv64x60_mc_err_driver, - &mv64x60_cpu_err_driver, - &mv64x60_sram_err_driver, -#ifdef CONFIG_PCI - &mv64x60_pci_err_driver, -#endif -}; - -static int __init mv64x60_edac_init(void) -{ - - printk(KERN_INFO "Marvell MV64x60 EDAC driver " MV64x60_REVISION "\n"); - printk(KERN_INFO "\t(C) 2006-2007 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; - } - - return platform_register_drivers(drivers, ARRAY_SIZE(drivers)); -} -module_init(mv64x60_edac_init); - -static void __exit mv64x60_edac_exit(void) -{ - platform_unregister_drivers(drivers, ARRAY_SIZE(drivers)); -} -module_exit(mv64x60_edac_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"); |