[RFC PATCH 05/11] EDAC: Remove Calxeda drivers
From: Rob Herring
Date: Tue Feb 18 2020 - 12:14:18 EST
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: James Morse <james.morse@xxxxxxx>
Cc: Robert Richter <rrichter@xxxxxxxxxxx>
Cc: linux-edac@xxxxxxxxxxxxxxx
Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
Do not apply yet.
MAINTAINERS | 6 -
drivers/edac/Kconfig | 14 --
drivers/edac/Makefile | 3 -
drivers/edac/highbank_l2_edac.c | 142 -----------------
drivers/edac/highbank_mc_edac.c | 272 --------------------------------
5 files changed, 437 deletions(-)
delete mode 100644 drivers/edac/highbank_l2_edac.c
delete mode 100644 drivers/edac/highbank_mc_edac.c
diff --git a/MAINTAINERS b/MAINTAINERS
index a0d86490c2c6..4732bb268299 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5964,12 +5964,6 @@ M: Shravan Kumar Ramani <sramani@xxxxxxxxxxxx>
S: Supported
F: drivers/edac/bluefield_edac.c
-EDAC-CALXEDA
-M: Robert Richter <rric@xxxxxxxxxx>
-L: linux-edac@xxxxxxxxxxxxxxx
-S: Maintained
-F: drivers/edac/highbank*
-
EDAC-CAVIUM OCTEON
M: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
M: Robert Richter <rrichter@xxxxxxxxxxx>
diff --git a/drivers/edac/Kconfig b/drivers/edac/Kconfig
index b3c99bb5fe77..f3ff75e5ed9b 100644
--- a/drivers/edac/Kconfig
+++ b/drivers/edac/Kconfig
@@ -334,20 +334,6 @@ config EDAC_CPC925
a companion chip to the PowerPC 970 family of
processors.
-config EDAC_HIGHBANK_MC
- tristate "Highbank Memory Controller"
- depends on ARCH_HIGHBANK
- help
- Support for error detection and correction on the
- Calxeda Highbank memory controller.
-
-config EDAC_HIGHBANK_L2
- tristate "Highbank L2 Cache"
- depends on ARCH_HIGHBANK
- help
- Support for error detection and correction on the
- Calxeda Highbank memory controller.
-
config EDAC_OCTEON_PC
tristate "Cavium Octeon Primary Caches"
depends on CPU_CAVIUM_OCTEON
diff --git a/drivers/edac/Makefile b/drivers/edac/Makefile
index d77200c9680b..9a563db39bc3 100644
--- a/drivers/edac/Makefile
+++ b/drivers/edac/Makefile
@@ -69,9 +69,6 @@ obj-$(CONFIG_EDAC_PPC4XX) += ppc4xx_edac.o
obj-$(CONFIG_EDAC_AMD8111) += amd8111_edac.o
obj-$(CONFIG_EDAC_AMD8131) += amd8131_edac.o
-obj-$(CONFIG_EDAC_HIGHBANK_MC) += highbank_mc_edac.o
-obj-$(CONFIG_EDAC_HIGHBANK_L2) += highbank_l2_edac.o
-
obj-$(CONFIG_EDAC_OCTEON_PC) += octeon_edac-pc.o
obj-$(CONFIG_EDAC_OCTEON_L2C) += octeon_edac-l2c.o
obj-$(CONFIG_EDAC_OCTEON_LMC) += octeon_edac-lmc.o
diff --git a/drivers/edac/highbank_l2_edac.c b/drivers/edac/highbank_l2_edac.c
deleted file mode 100644
index c4549cec788b..000000000000
--- a/drivers/edac/highbank_l2_edac.c
+++ /dev/null
@@ -1,142 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2011-2012 Calxeda, Inc.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/edac.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/of_platform.h>
-
-#include "edac_module.h"
-
-#define SR_CLR_SB_ECC_INTR 0x0
-#define SR_CLR_DB_ECC_INTR 0x4
-
-struct hb_l2_drvdata {
- void __iomem *base;
- int sb_irq;
- int db_irq;
-};
-
-static irqreturn_t highbank_l2_err_handler(int irq, void *dev_id)
-{
- struct edac_device_ctl_info *dci = dev_id;
- struct hb_l2_drvdata *drvdata = dci->pvt_info;
-
- if (irq == drvdata->sb_irq) {
- writel(1, drvdata->base + SR_CLR_SB_ECC_INTR);
- edac_device_handle_ce(dci, 0, 0, dci->ctl_name);
- }
- if (irq == drvdata->db_irq) {
- writel(1, drvdata->base + SR_CLR_DB_ECC_INTR);
- edac_device_handle_ue(dci, 0, 0, dci->ctl_name);
- }
-
- return IRQ_HANDLED;
-}
-
-static const struct of_device_id hb_l2_err_of_match[] = {
- { .compatible = "calxeda,hb-sregs-l2-ecc", },
- {},
-};
-MODULE_DEVICE_TABLE(of, hb_l2_err_of_match);
-
-static int highbank_l2_err_probe(struct platform_device *pdev)
-{
- const struct of_device_id *id;
- struct edac_device_ctl_info *dci;
- struct hb_l2_drvdata *drvdata;
- struct resource *r;
- int res = 0;
-
- dci = edac_device_alloc_ctl_info(sizeof(*drvdata), "cpu",
- 1, "L", 1, 2, NULL, 0, 0);
- if (!dci)
- return -ENOMEM;
-
- drvdata = dci->pvt_info;
- dci->dev = &pdev->dev;
- platform_set_drvdata(pdev, dci);
-
- if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
- return -ENOMEM;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!r) {
- dev_err(&pdev->dev, "Unable to get mem resource\n");
- res = -ENODEV;
- goto err;
- }
-
- if (!devm_request_mem_region(&pdev->dev, r->start,
- resource_size(r), dev_name(&pdev->dev))) {
- dev_err(&pdev->dev, "Error while requesting mem region\n");
- res = -EBUSY;
- goto err;
- }
-
- drvdata->base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (!drvdata->base) {
- dev_err(&pdev->dev, "Unable to map regs\n");
- res = -ENOMEM;
- goto err;
- }
-
- id = of_match_device(hb_l2_err_of_match, &pdev->dev);
- dci->mod_name = pdev->dev.driver->name;
- dci->ctl_name = id ? id->compatible : "unknown";
- dci->dev_name = dev_name(&pdev->dev);
-
- if (edac_device_add_device(dci))
- goto err;
-
- drvdata->db_irq = platform_get_irq(pdev, 0);
- res = devm_request_irq(&pdev->dev, drvdata->db_irq,
- highbank_l2_err_handler,
- 0, dev_name(&pdev->dev), dci);
- if (res < 0)
- goto err2;
-
- drvdata->sb_irq = platform_get_irq(pdev, 1);
- res = devm_request_irq(&pdev->dev, drvdata->sb_irq,
- highbank_l2_err_handler,
- 0, dev_name(&pdev->dev), dci);
- if (res < 0)
- goto err2;
-
- devres_close_group(&pdev->dev, NULL);
- return 0;
-err2:
- edac_device_del_device(&pdev->dev);
-err:
- devres_release_group(&pdev->dev, NULL);
- edac_device_free_ctl_info(dci);
- return res;
-}
-
-static int highbank_l2_err_remove(struct platform_device *pdev)
-{
- struct edac_device_ctl_info *dci = platform_get_drvdata(pdev);
-
- edac_device_del_device(&pdev->dev);
- edac_device_free_ctl_info(dci);
- return 0;
-}
-
-static struct platform_driver highbank_l2_edac_driver = {
- .probe = highbank_l2_err_probe,
- .remove = highbank_l2_err_remove,
- .driver = {
- .name = "hb_l2_edac",
- .of_match_table = hb_l2_err_of_match,
- },
-};
-
-module_platform_driver(highbank_l2_edac_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Calxeda, Inc.");
-MODULE_DESCRIPTION("EDAC Driver for Calxeda Highbank L2 Cache");
diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
deleted file mode 100644
index 61b76ec226af..000000000000
--- a/drivers/edac/highbank_mc_edac.c
+++ /dev/null
@@ -1,272 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2011-2012 Calxeda, Inc.
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ctype.h>
-#include <linux/edac.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/of_platform.h>
-#include <linux/uaccess.h>
-
-#include "edac_module.h"
-
-/* DDR Ctrlr Error Registers */
-
-#define HB_DDR_ECC_ERR_BASE 0x128
-#define MW_DDR_ECC_ERR_BASE 0x1b4
-
-#define HB_DDR_ECC_OPT 0x00
-#define HB_DDR_ECC_U_ERR_ADDR 0x08
-#define HB_DDR_ECC_U_ERR_STAT 0x0c
-#define HB_DDR_ECC_U_ERR_DATAL 0x10
-#define HB_DDR_ECC_U_ERR_DATAH 0x14
-#define HB_DDR_ECC_C_ERR_ADDR 0x18
-#define HB_DDR_ECC_C_ERR_STAT 0x1c
-#define HB_DDR_ECC_C_ERR_DATAL 0x20
-#define HB_DDR_ECC_C_ERR_DATAH 0x24
-
-#define HB_DDR_ECC_OPT_MODE_MASK 0x3
-#define HB_DDR_ECC_OPT_FWC 0x100
-#define HB_DDR_ECC_OPT_XOR_SHIFT 16
-
-/* DDR Ctrlr Interrupt Registers */
-
-#define HB_DDR_ECC_INT_BASE 0x180
-#define MW_DDR_ECC_INT_BASE 0x218
-
-#define HB_DDR_ECC_INT_STATUS 0x00
-#define HB_DDR_ECC_INT_ACK 0x04
-
-#define HB_DDR_ECC_INT_STAT_CE 0x8
-#define HB_DDR_ECC_INT_STAT_DOUBLE_CE 0x10
-#define HB_DDR_ECC_INT_STAT_UE 0x20
-#define HB_DDR_ECC_INT_STAT_DOUBLE_UE 0x40
-
-struct hb_mc_drvdata {
- void __iomem *mc_err_base;
- void __iomem *mc_int_base;
-};
-
-static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
-{
- struct mem_ctl_info *mci = dev_id;
- struct hb_mc_drvdata *drvdata = mci->pvt_info;
- u32 status, err_addr;
-
- /* Read the interrupt status register */
- status = readl(drvdata->mc_int_base + HB_DDR_ECC_INT_STATUS);
-
- if (status & HB_DDR_ECC_INT_STAT_UE) {
- err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_U_ERR_ADDR);
- 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, "");
- }
- if (status & HB_DDR_ECC_INT_STAT_CE) {
- u32 syndrome = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_STAT);
- syndrome = (syndrome >> 8) & 0xff;
- err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_ADDR);
- 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, "");
- }
-
- /* clear the error, clears the interrupt */
- writel(status, drvdata->mc_int_base + HB_DDR_ECC_INT_ACK);
- return IRQ_HANDLED;
-}
-
-static void highbank_mc_err_inject(struct mem_ctl_info *mci, u8 synd)
-{
- struct hb_mc_drvdata *pdata = mci->pvt_info;
- u32 reg;
-
- reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT);
- reg &= HB_DDR_ECC_OPT_MODE_MASK;
- reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC;
- writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT);
-}
-
-#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
-
-static ssize_t highbank_mc_inject_ctrl(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- struct mem_ctl_info *mci = to_mci(dev);
- u8 synd;
-
- if (kstrtou8(buf, 16, &synd))
- return -EINVAL;
-
- highbank_mc_err_inject(mci, synd);
-
- return count;
-}
-
-static DEVICE_ATTR(inject_ctrl, S_IWUSR, NULL, highbank_mc_inject_ctrl);
-
-static struct attribute *highbank_dev_attrs[] = {
- &dev_attr_inject_ctrl.attr,
- NULL
-};
-
-ATTRIBUTE_GROUPS(highbank_dev);
-
-struct hb_mc_settings {
- int err_offset;
- int int_offset;
-};
-
-static struct hb_mc_settings hb_settings = {
- .err_offset = HB_DDR_ECC_ERR_BASE,
- .int_offset = HB_DDR_ECC_INT_BASE,
-};
-
-static struct hb_mc_settings mw_settings = {
- .err_offset = MW_DDR_ECC_ERR_BASE,
- .int_offset = MW_DDR_ECC_INT_BASE,
-};
-
-static const struct of_device_id hb_ddr_ctrl_of_match[] = {
- { .compatible = "calxeda,hb-ddr-ctrl", .data = &hb_settings },
- { .compatible = "calxeda,ecx-2000-ddr-ctrl", .data = &mw_settings },
- {},
-};
-MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match);
-
-static int highbank_mc_probe(struct platform_device *pdev)
-{
- const struct of_device_id *id;
- const struct hb_mc_settings *settings;
- struct edac_mc_layer layers[2];
- struct mem_ctl_info *mci;
- struct hb_mc_drvdata *drvdata;
- struct dimm_info *dimm;
- struct resource *r;
- void __iomem *base;
- u32 control;
- int irq;
- int res = 0;
-
- id = of_match_device(hb_ddr_ctrl_of_match, &pdev->dev);
- if (!id)
- return -ENODEV;
-
- 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(0, ARRAY_SIZE(layers), layers,
- sizeof(struct hb_mc_drvdata));
- if (!mci)
- return -ENOMEM;
-
- mci->pdev = &pdev->dev;
- drvdata = mci->pvt_info;
- platform_set_drvdata(pdev, mci);
-
- if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL))
- return -ENOMEM;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!r) {
- dev_err(&pdev->dev, "Unable to get mem resource\n");
- res = -ENODEV;
- goto err;
- }
-
- if (!devm_request_mem_region(&pdev->dev, r->start,
- resource_size(r), dev_name(&pdev->dev))) {
- dev_err(&pdev->dev, "Error while requesting mem region\n");
- res = -EBUSY;
- goto err;
- }
-
- base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
- if (!base) {
- dev_err(&pdev->dev, "Unable to map regs\n");
- res = -ENOMEM;
- goto err;
- }
-
- settings = id->data;
- drvdata->mc_err_base = base + settings->err_offset;
- drvdata->mc_int_base = base + settings->int_offset;
-
- control = readl(drvdata->mc_err_base + HB_DDR_ECC_OPT) & 0x3;
- if (!control || (control == 0x2)) {
- dev_err(&pdev->dev, "No ECC present, or ECC disabled\n");
- res = -ENODEV;
- goto err;
- }
-
- mci->mtype_cap = MEM_FLAG_DDR3;
- mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
- mci->edac_cap = EDAC_FLAG_SECDED;
- mci->mod_name = pdev->dev.driver->name;
- mci->ctl_name = id->compatible;
- mci->dev_name = dev_name(&pdev->dev);
- mci->scrub_mode = SCRUB_SW_SRC;
-
- /* Only a single 4GB DIMM is supported */
- dimm = *mci->dimms;
- dimm->nr_pages = (~0UL >> PAGE_SHIFT) + 1;
- dimm->grain = 8;
- dimm->dtype = DEV_X8;
- dimm->mtype = MEM_DDR3;
- dimm->edac_mode = EDAC_SECDED;
-
- res = edac_mc_add_mc_with_groups(mci, highbank_dev_groups);
- if (res < 0)
- goto err;
-
- irq = platform_get_irq(pdev, 0);
- res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler,
- 0, dev_name(&pdev->dev), mci);
- if (res < 0) {
- dev_err(&pdev->dev, "Unable to request irq %d\n", irq);
- goto err2;
- }
-
- devres_close_group(&pdev->dev, NULL);
- return 0;
-err2:
- edac_mc_del_mc(&pdev->dev);
-err:
- devres_release_group(&pdev->dev, NULL);
- edac_mc_free(mci);
- return res;
-}
-
-static int highbank_mc_remove(struct platform_device *pdev)
-{
- struct mem_ctl_info *mci = platform_get_drvdata(pdev);
-
- edac_mc_del_mc(&pdev->dev);
- edac_mc_free(mci);
- return 0;
-}
-
-static struct platform_driver highbank_mc_edac_driver = {
- .probe = highbank_mc_probe,
- .remove = highbank_mc_remove,
- .driver = {
- .name = "hb_mc_edac",
- .of_match_table = hb_ddr_ctrl_of_match,
- },
-};
-
-module_platform_driver(highbank_mc_edac_driver);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Calxeda, Inc.");
-MODULE_DESCRIPTION("EDAC Driver for Calxeda Highbank");
--
2.20.1