diff options
Diffstat (limited to 'drivers/edac/mpc85xx_edac.c')
-rw-r--r-- | drivers/edac/mpc85xx_edac.c | 107 |
1 files changed, 92 insertions, 15 deletions
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 3eb32f6..939ea18 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -1,5 +1,6 @@ /* * Freescale MPC85xx Memory Controller kenel module + * Copyright (c) 2013 Freescale Semiconductor, Inc. * * Author: Dave Jiang <djiang@mvista.com> * @@ -196,6 +197,42 @@ static void mpc85xx_pci_check(struct edac_pci_ctl_info *pci) 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; @@ -207,7 +244,10 @@ static irqreturn_t mpc85xx_pci_isr(int irq, void *dev_id) if (!err_detect) return IRQ_NONE; - mpc85xx_pci_check(pci); + if (pdata->is_pcie) + mpc85xx_pcie_check(pci); + else + mpc85xx_pci_check(pci); return IRQ_HANDLED; } @@ -239,14 +279,23 @@ int mpc85xx_pci_err_probe(struct platform_device *op) pdata = pci->pvt_info; pdata->name = "mpc85xx_pci_err"; pdata->irq = NO_IRQ; + if (mpc85xx_pcie_find_capability(op->dev.of_node) > 0) + pdata->is_pcie = 1; + else + pdata->is_pcie = 0; + 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) - pci->edac_check = mpc85xx_pci_check; + 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++; @@ -275,16 +324,26 @@ int mpc85xx_pci_err_probe(struct platform_device *op) goto err; } - orig_pci_err_cap_dr = - in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR); + 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); + /* 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); + 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); + /* 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); @@ -297,7 +356,8 @@ int mpc85xx_pci_err_probe(struct platform_device *op) 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_pci_isr, IRQF_DISABLED, + mpc85xx_pci_isr, + IRQF_DISABLED | IRQF_SHARED, "[EDAC] PCI err", pci); if (res < 0) { printk(KERN_ERR @@ -312,6 +372,19 @@ int mpc85xx_pci_err_probe(struct platform_device *op) 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. + */ + 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"); printk(KERN_INFO EDAC_MOD_STR " PCI err registered\n"); @@ -579,7 +652,7 @@ static int mpc85xx_l2_err_probe(struct platform_device *op) 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_DISABLED, + mpc85xx_l2_isr, IRQF_SHARED, "[EDAC] L2 err", edac_dev); if (res < 0) { printk(KERN_ERR @@ -773,6 +846,8 @@ static void sbe_ecc_decode(u32 cap_high, u32 cap_low, u32 cap_ecc, } } +#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; @@ -780,7 +855,7 @@ static void mpc85xx_mc_check(struct mem_ctl_info *mci) u32 bus_width; u32 err_detect; u32 syndrome; - u32 err_addr; + u64 err_addr; u32 pfn; int row_index; u32 cap_high; @@ -811,7 +886,9 @@ static void mpc85xx_mc_check(struct mem_ctl_info *mci) else syndrome &= 0xffff; - err_addr = in_be32(pdata->mc_vbase + MPC85XX_MC_CAPTURE_ADDRESS); + 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++) { @@ -848,7 +925,7 @@ static void mpc85xx_mc_check(struct mem_ctl_info *mci) 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: %#8.8x\n", err_addr); + 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 */ |