diff options
Diffstat (limited to 'drivers/edac/altera_edac.c')
| -rw-r--r-- | drivers/edac/altera_edac.c | 30 |
1 files changed, 13 insertions, 17 deletions
diff --git a/drivers/edac/altera_edac.c b/drivers/edac/altera_edac.c index 5ff263850cc7..acb3006df631 100644 --- a/drivers/edac/altera_edac.c +++ b/drivers/edac/altera_edac.c @@ -1762,28 +1762,24 @@ static ssize_t altr_edac_a10_device_trig2(struct file *file, if (trig_type == ALTR_UE_TRIGGER_CHAR) { writel(priv->ue_set_mask, set_addr); } else { - /* Setup write of 0 to first 4 bytes */ - writel(0x0, drvdata->base + ECC_BLK_WDATA0_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA1_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA2_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA3_OFST); - /* Setup write of 4 bytes */ + /* Setup read/write of 4 bytes */ writel(ECC_WORD_WRITE, drvdata->base + ECC_BLK_DBYTECTRL_OFST); /* Setup Address to 0 */ - writel(0x0, drvdata->base + ECC_BLK_ADDRESS_OFST); - /* Setup accctrl to write & data override */ - writel(ECC_WRITE_DOVR, drvdata->base + ECC_BLK_ACCCTRL_OFST); - /* Kick it. */ - writel(ECC_XACT_KICK, drvdata->base + ECC_BLK_STARTACC_OFST); - /* Setup accctrl to read & ecc override */ - writel(ECC_READ_EOVR, drvdata->base + ECC_BLK_ACCCTRL_OFST); + writel(0, drvdata->base + ECC_BLK_ADDRESS_OFST); + /* Setup accctrl to read & ecc & data override */ + writel(ECC_READ_EDOVR, drvdata->base + ECC_BLK_ACCCTRL_OFST); /* Kick it. */ writel(ECC_XACT_KICK, drvdata->base + ECC_BLK_STARTACC_OFST); /* Setup write for single bit change */ - writel(0x1, drvdata->base + ECC_BLK_WDATA0_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA1_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA2_OFST); - writel(0x0, drvdata->base + ECC_BLK_WDATA3_OFST); + writel(readl(drvdata->base + ECC_BLK_RDATA0_OFST) ^ 0x1, + drvdata->base + ECC_BLK_WDATA0_OFST); + writel(readl(drvdata->base + ECC_BLK_RDATA1_OFST), + drvdata->base + ECC_BLK_WDATA1_OFST); + writel(readl(drvdata->base + ECC_BLK_RDATA2_OFST), + drvdata->base + ECC_BLK_WDATA2_OFST); + writel(readl(drvdata->base + ECC_BLK_RDATA3_OFST), + drvdata->base + ECC_BLK_WDATA3_OFST); + /* Copy Read ECC to Write ECC */ writel(readl(drvdata->base + ECC_BLK_RECC0_OFST), drvdata->base + ECC_BLK_WECC0_OFST); |