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path: root/drivers/edac/mpc85xx_edac.c
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Diffstat (limited to 'drivers/edac/mpc85xx_edac.c')
-rw-r--r--drivers/edac/mpc85xx_edac.c685
1 files changed, 42 insertions, 643 deletions
diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index ca63d0da8889..ff0567526ee3 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
@@ -46,103 +43,6 @@ static u32 orig_pci_err_en;
#endif
static u32 orig_l2_err_disable;
-#ifdef CONFIG_FSL_SOC_BOOKE
-static u32 orig_hid1[2];
-#endif
-
-/************************ 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
@@ -160,18 +60,18 @@ static void mpc85xx_pci_check(struct edac_pci_ctl_info *pci)
return;
}
- printk(KERN_ERR "PCI error(s) detected\n");
- printk(KERN_ERR "PCI/X ERR_DR register: %#08x\n", err_detect);
+ pr_err("PCI error(s) detected\n");
+ pr_err("PCI/X ERR_DR register: %#08x\n", err_detect);
- printk(KERN_ERR "PCI/X ERR_ATTRIB register: %#08x\n",
+ pr_err("PCI/X ERR_ATTRIB register: %#08x\n",
in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ATTRIB));
- printk(KERN_ERR "PCI/X ERR_ADDR register: %#08x\n",
+ pr_err("PCI/X ERR_ADDR register: %#08x\n",
in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR));
- printk(KERN_ERR "PCI/X ERR_EXT_ADDR register: %#08x\n",
+ pr_err("PCI/X ERR_EXT_ADDR register: %#08x\n",
in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EXT_ADDR));
- printk(KERN_ERR "PCI/X ERR_DL register: %#08x\n",
+ pr_err("PCI/X ERR_DL register: %#08x\n",
in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DL));
- printk(KERN_ERR "PCI/X ERR_DH register: %#08x\n",
+ pr_err("PCI/X ERR_DH register: %#08x\n",
in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DH));
/* clear error bits */
@@ -187,14 +87,14 @@ static void mpc85xx_pci_check(struct edac_pci_ctl_info *pci)
static void mpc85xx_pcie_check(struct edac_pci_ctl_info *pci)
{
struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
- u32 err_detect;
+ u32 err_detect, err_cap_stat;
err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
+ err_cap_stat = in_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR);
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_STAT register: 0x%08x\n", err_cap_stat);
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",
@@ -206,6 +106,9 @@ static void mpc85xx_pcie_check(struct edac_pci_ctl_info *pci)
/* clear error bits */
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
+
+ /* reset error capture */
+ out_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR, err_cap_stat | 0x1);
}
static int mpc85xx_pcie_find_capability(struct device_node *np)
@@ -267,7 +170,6 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
pdata = pci->pvt_info;
pdata->name = "mpc85xx_pci_err";
- pdata->irq = NO_IRQ;
plat_data = op->dev.platform_data;
if (!plat_data) {
@@ -297,8 +199,7 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
res = of_address_to_resource(of_node, 0, &r);
if (res) {
- printk(KERN_ERR "%s: Unable to get resource for "
- "PCI err regs\n", __func__);
+ pr_err("%s: Unable to get resource for PCI err regs\n", __func__);
goto err;
}
@@ -307,15 +208,14 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
pdata->name)) {
- printk(KERN_ERR "%s: Error while requesting mem region\n",
- __func__);
+ 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) {
- printk(KERN_ERR "%s: Unable to setup PCI err regs\n", __func__);
+ pr_err("%s: Unable to setup PCI err regs\n", __func__);
res = -ENOMEM;
goto err;
}
@@ -344,6 +244,9 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
/* clear error bits */
out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, ~0);
+ /* reset error capture */
+ out_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR, 0x1);
+
if (edac_pci_add_device(pci, pdata->edac_idx) > 0) {
edac_dbg(3, "failed edac_pci_add_device()\n");
goto err;
@@ -356,15 +259,14 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
IRQF_SHARED,
"[EDAC] PCI err", pci);
if (res < 0) {
- printk(KERN_ERR
- "%s: Unable to request irq %d for "
- "MPC85xx PCI err\n", __func__, pdata->irq);
+ 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;
}
- printk(KERN_INFO EDAC_MOD_STR " acquired irq %d for PCI Err\n",
+ pr_info(EDAC_MOD_STR " acquired irq %d for PCI Err\n",
pdata->irq);
}
@@ -386,7 +288,7 @@ static int mpc85xx_pci_err_probe(struct platform_device *op)
devres_remove_group(&op->dev, mpc85xx_pci_err_probe);
edac_dbg(3, "success\n");
- printk(KERN_INFO EDAC_MOD_STR " PCI err registered\n");
+ pr_info(EDAC_MOD_STR " PCI err registered\n");
return 0;
@@ -529,17 +431,17 @@ static void mpc85xx_l2_check(struct edac_device_ctl_info *edac_dev)
if (!(err_detect & L2_EDE_MASK))
return;
- printk(KERN_ERR "ECC Error in CPU L2 cache\n");
- printk(KERN_ERR "L2 Error Detect Register: 0x%08x\n", err_detect);
- printk(KERN_ERR "L2 Error Capture Data High Register: 0x%08x\n",
+ 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));
- printk(KERN_ERR "L2 Error Capture Data Lo Register: 0x%08x\n",
+ pr_err("L2 Error Capture Data Lo Register: 0x%08x\n",
in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTDATALO));
- printk(KERN_ERR "L2 Error Syndrome Register: 0x%08x\n",
+ pr_err("L2 Error Syndrome Register: 0x%08x\n",
in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTECC));
- printk(KERN_ERR "L2 Error Attributes Capture Register: 0x%08x\n",
+ pr_err("L2 Error Attributes Capture Register: 0x%08x\n",
in_be32(pdata->l2_vbase + MPC85XX_L2_ERRATTR));
- printk(KERN_ERR "L2 Error Address Capture Register: 0x%08x\n",
+ pr_err("L2 Error Address Capture Register: 0x%08x\n",
in_be32(pdata->l2_vbase + MPC85XX_L2_ERRADDR));
/* clear error detect register */
@@ -588,7 +490,6 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
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;
@@ -596,8 +497,7 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
res = of_address_to_resource(op->dev.of_node, 0, &r);
if (res) {
- printk(KERN_ERR "%s: Unable to get resource for "
- "L2 err regs\n", __func__);
+ pr_err("%s: Unable to get resource for L2 err regs\n", __func__);
goto err;
}
@@ -606,15 +506,14 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
pdata->name)) {
- printk(KERN_ERR "%s: Error while requesting mem region\n",
- __func__);
+ 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) {
- printk(KERN_ERR "%s: Unable to setup L2 err regs\n", __func__);
+ pr_err("%s: Unable to setup L2 err regs\n", __func__);
res = -ENOMEM;
goto err;
}
@@ -646,16 +545,14 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
mpc85xx_l2_isr, IRQF_SHARED,
"[EDAC] L2 err", edac_dev);
if (res < 0) {
- printk(KERN_ERR
- "%s: Unable to request irq %d for "
- "MPC85xx L2 err\n", __func__, pdata->irq);
+ 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;
}
- printk(KERN_INFO EDAC_MOD_STR " acquired irq %d for L2 Err\n",
- pdata->irq);
+ pr_info(EDAC_MOD_STR " acquired irq %d for L2 Err\n", pdata->irq);
edac_dev->op_state = OP_RUNNING_INTERRUPT;
@@ -665,7 +562,7 @@ static int mpc85xx_l2_err_probe(struct platform_device *op)
devres_remove_group(&op->dev, mpc85xx_l2_err_probe);
edac_dbg(3, "success\n");
- printk(KERN_INFO EDAC_MOD_STR " L2 err registered\n");
+ pr_info(EDAC_MOD_STR " L2 err registered\n");
return 0;
@@ -729,466 +626,6 @@ 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) {
- printk(KERN_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)) {
- printk(KERN_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) {
- printk(KERN_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 */
- 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_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) {
- printk(KERN_ERR "%s: Unable to request irq %d for "
- "MPC85xx DRAM ERR\n", __func__, pdata->irq);
- irq_dispose_mapping(pdata->irq);
- res = -ENODEV;
- goto err2;
- }
-
- printk(KERN_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");
- printk(KERN_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", },
@@ -1217,22 +654,14 @@ static const struct of_device_id mpc85xx_mc_err_of_match[] = {
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,
+ .probe = fsl_mc_err_probe,
+ .remove = fsl_mc_err_remove,
.driver = {
.name = "mpc85xx_mc_err",
.of_match_table = mpc85xx_mc_err_of_match,
},
};
-#ifdef CONFIG_FSL_SOC_BOOKE
-static void __init mpc85xx_mc_clear_rfxe(void *data)
-{
- orig_hid1[smp_processor_id()] = mfspr(SPRN_HID1);
- mtspr(SPRN_HID1, (orig_hid1[smp_processor_id()] & ~HID1_RFXE));
-}
-#endif
-
static struct platform_driver * const drivers[] = {
&mpc85xx_mc_err_driver,
&mpc85xx_l2_err_driver,
@@ -1246,8 +675,7 @@ static int __init mpc85xx_mc_init(void)
int res = 0;
u32 __maybe_unused pvr = 0;
- printk(KERN_INFO "Freescale(R) MPC85xx EDAC driver, "
- "(C) 2006 Montavista Software\n");
+ pr_info("Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software\n");
/* make sure error reporting method is sane */
switch (edac_op_state) {
@@ -1261,44 +689,15 @@ static int __init mpc85xx_mc_init(void)
res = platform_register_drivers(drivers, ARRAY_SIZE(drivers));
if (res)
- printk(KERN_WARNING EDAC_MOD_STR "drivers fail to register\n");
-
-#ifdef CONFIG_FSL_SOC_BOOKE
- pvr = mfspr(SPRN_PVR);
-
- if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
- (PVR_VER(pvr) == PVR_VER_E500V2)) {
- /*
- * need to clear HID1[RFXE] to disable machine check int
- * so we can catch it
- */
- if (edac_op_state == EDAC_OPSTATE_INT)
- on_each_cpu(mpc85xx_mc_clear_rfxe, NULL, 0);
- }
-#endif
+ pr_warn(EDAC_MOD_STR "drivers fail to register\n");
return 0;
}
module_init(mpc85xx_mc_init);
-#ifdef CONFIG_FSL_SOC_BOOKE
-static void __exit mpc85xx_mc_restore_hid1(void *data)
-{
- mtspr(SPRN_HID1, orig_hid1[smp_processor_id()]);
-}
-#endif
-
static void __exit mpc85xx_mc_exit(void)
{
-#ifdef CONFIG_FSL_SOC_BOOKE
- u32 pvr = mfspr(SPRN_PVR);
-
- if ((PVR_VER(pvr) == PVR_VER_E500V1) ||
- (PVR_VER(pvr) == PVR_VER_E500V2)) {
- on_each_cpu(mpc85xx_mc_restore_hid1, NULL, 0);
- }
-#endif
platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
}
generated by cgit (git 2.34.1) at 2024-05-21 21:42:23 +0000