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[linux.git] / drivers / edac / mpc85xx_edac.c
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a9a753d5 1/*
775c503f 2 * Freescale MPC85xx Memory Controller kernel module
a9a753d5 3 *
c92132f5
CL		 4 * Parts Copyrighted (c) 2013 by Freescale Semiconductor, Inc.
5 *
a9a753d5
DJ		 6 * Author: Dave Jiang <[email protected]>
7 *
8 * 2006-2007 (c) MontaVista Software, Inc. This file is licensed under
9 * the terms of the GNU General Public License version 2. This program
10 * is licensed "as is" without any warranty of any kind, whether express
11 * or implied.
12 *
13 */
14#include <linux/module.h>
15#include <linux/init.h>
a9a753d5
DJ		 16#include <linux/interrupt.h>
17#include <linux/ctype.h>
18#include <linux/io.h>
19#include <linux/mod_devicetable.h>
20#include <linux/edac.h>
60be7551 21#include <linux/smp.h>
5a0e3ad6 22#include <linux/gfp.h>
666db563 23#include <linux/fsl/edac.h>
a9a753d5
DJ		 24
25#include <linux/of_platform.h>
26#include <linux/of_device.h>
a9a753d5 27#include "edac_module.h"
a9a753d5 28#include "mpc85xx_edac.h"
ea2eb9a8 29#include "fsl_ddr_edac.h"
a9a753d5
DJ		 30
31static int edac_dev_idx;
0616fb00 32#ifdef CONFIG_PCI
a9a753d5 33static int edac_pci_idx;
0616fb00 34#endif
a9a753d5
DJ		 35
36/*
37 * PCI Err defines
38 */
39#ifdef CONFIG_PCI
40static u32 orig_pci_err_cap_dr;
41static u32 orig_pci_err_en;
42#endif
43
44static u32 orig_l2_err_disable;
a9a753d5 45
a9a753d5
DJ		 46/**************************** PCI Err device ***************************/
47#ifdef CONFIG_PCI
48
49static void mpc85xx_pci_check(struct edac_pci_ctl_info *pci)
50{
51 struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
52 u32 err_detect;
53
54 err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
55
56 /* master aborts can happen during PCI config cycles */
57 if (!(err_detect & ~(PCI_EDE_MULTI_ERR | PCI_EDE_MST_ABRT))) {
58 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
59 return;
60 }
61
88857ebe
YS		 62 pr_err("PCI error(s) detected\n");
63 pr_err("PCI/X ERR_DR register: %#08x\n", err_detect);
a9a753d5 64
88857ebe 65 pr_err("PCI/X ERR_ATTRIB register: %#08x\n",
a9a753d5 66 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ATTRIB));
88857ebe 67 pr_err("PCI/X ERR_ADDR register: %#08x\n",
a9a753d5 68 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR));
88857ebe 69 pr_err("PCI/X ERR_EXT_ADDR register: %#08x\n",
a9a753d5 70 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EXT_ADDR));
88857ebe 71 pr_err("PCI/X ERR_DL register: %#08x\n",
a9a753d5 72 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DL));
88857ebe 73 pr_err("PCI/X ERR_DH register: %#08x\n",
a9a753d5
DJ		 74 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DH));
75
76 /* clear error bits */
77 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
78
79 if (err_detect & PCI_EDE_PERR_MASK)
80 edac_pci_handle_pe(pci, pci->ctl_name);
81
82 if ((err_detect & ~PCI_EDE_MULTI_ERR) & ~PCI_EDE_PERR_MASK)
83 edac_pci_handle_npe(pci, pci->ctl_name);
84}
85
c92132f5
CL		 86static void mpc85xx_pcie_check(struct edac_pci_ctl_info *pci)
87{
88 struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
6fa06b0d 89 u32 err_detect, err_cap_stat;
c92132f5
CL		 90
91 err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
6fa06b0d 92 err_cap_stat = in_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR);
c92132f5
CL		 93
94 pr_err("PCIe error(s) detected\n");
95 pr_err("PCIe ERR_DR register: 0x%08x\n", err_detect);
6fa06b0d 96 pr_err("PCIe ERR_CAP_STAT register: 0x%08x\n", err_cap_stat);
c92132f5
CL		 97 pr_err("PCIe ERR_CAP_R0 register: 0x%08x\n",
98 in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R0));
99 pr_err("PCIe ERR_CAP_R1 register: 0x%08x\n",
100 in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R1));
101 pr_err("PCIe ERR_CAP_R2 register: 0x%08x\n",
102 in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R2));
103 pr_err("PCIe ERR_CAP_R3 register: 0x%08x\n",
104 in_be32(pdata->pci_vbase + MPC85XX_PCIE_ERR_CAP_R3));
105
106 /* clear error bits */
107 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, err_detect);
6fa06b0d
TH		 108
109 /* reset error capture */
110 out_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR, err_cap_stat | 0x1);
c92132f5
CL		 111}
112
113static int mpc85xx_pcie_find_capability(struct device_node *np)
114{
115 struct pci_controller *hose;
116
117 if (!np)
118 return -EINVAL;
119
120 hose = pci_find_hose_for_OF_device(np);
121
122 return early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP);
123}
124
a9a753d5
DJ		 125static irqreturn_t mpc85xx_pci_isr(int irq, void *dev_id)
126{
127 struct edac_pci_ctl_info *pci = dev_id;
128 struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
129 u32 err_detect;
130
131 err_detect = in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR);
132
133 if (!err_detect)
134 return IRQ_NONE;
135
c92132f5
CL		 136 if (pdata->is_pcie)
137 mpc85xx_pcie_check(pci);
138 else
139 mpc85xx_pci_check(pci);
a9a753d5
DJ		 140
141 return IRQ_HANDLED;
142}
143
666db563 144static int mpc85xx_pci_err_probe(struct platform_device *op)
a9a753d5
DJ		 145{
146 struct edac_pci_ctl_info *pci;
147 struct mpc85xx_pci_pdata *pdata;
666db563
SW		 148 struct mpc85xx_edac_pci_plat_data *plat_data;
149 struct device_node *of_node;
f87bd330 150 struct resource r;
a9a753d5
DJ		 151 int res = 0;
152
f87bd330 153 if (!devres_open_group(&op->dev, mpc85xx_pci_err_probe, GFP_KERNEL))
a9a753d5
DJ		 154 return -ENOMEM;
155
156 pci = edac_pci_alloc_ctl_info(sizeof(*pdata), "mpc85xx_pci_err");
157 if (!pci)
158 return -ENOMEM;
159
905e75c4
JH		 160 /* make sure error reporting method is sane */
161 switch (edac_op_state) {
162 case EDAC_OPSTATE_POLL:
163 case EDAC_OPSTATE_INT:
164 break;
165 default:
166 edac_op_state = EDAC_OPSTATE_INT;
167 break;
168 }
169
a9a753d5
DJ		 170 pdata = pci->pvt_info;
171 pdata->name = "mpc85xx_pci_err";
c92132f5 172
666db563
SW		 173 plat_data = op->dev.platform_data;
174 if (!plat_data) {
175 dev_err(&op->dev, "no platform data");
176 res = -ENXIO;
177 goto err;
178 }
179 of_node = plat_data->of_node;
180
181 if (mpc85xx_pcie_find_capability(of_node) > 0)
c92132f5
CL		 182 pdata->is_pcie = true;
183
f87bd330
DJ		 184 dev_set_drvdata(&op->dev, pci);
185 pci->dev = &op->dev;
a9a753d5
DJ		 186 pci->mod_name = EDAC_MOD_STR;
187 pci->ctl_name = pdata->name;
031d5518 188 pci->dev_name = dev_name(&op->dev);
a9a753d5 189
c92132f5
CL		 190 if (edac_op_state == EDAC_OPSTATE_POLL) {
191 if (pdata->is_pcie)
192 pci->edac_check = mpc85xx_pcie_check;
193 else
194 pci->edac_check = mpc85xx_pci_check;
195 }
a9a753d5
DJ		 196
197 pdata->edac_idx = edac_pci_idx++;
198
666db563 199 res = of_address_to_resource(of_node, 0, &r);
f87bd330 200 if (res) {
88857ebe 201 pr_err("%s: Unable to get resource for PCI err regs\n", __func__);
a9a753d5
DJ		 202 goto err;
203 }
204
f87bd330
DJ		 205 /* we only need the error registers */
206 r.start += 0xe00;
207
66ed3f75
HS		 208 if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
209 pdata->name)) {
88857ebe 210 pr_err("%s: Error while requesting mem region\n", __func__);
a9a753d5
DJ		 211 res = -EBUSY;
212 goto err;
213 }
214
66ed3f75 215 pdata->pci_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
a9a753d5 216 if (!pdata->pci_vbase) {
88857ebe 217 pr_err("%s: Unable to setup PCI err regs\n", __func__);
a9a753d5
DJ		 218 res = -ENOMEM;
219 goto err;
220 }
221
c92132f5
CL		 222 if (pdata->is_pcie) {
223 orig_pci_err_cap_dr =
224 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR);
225 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR, ~0);
226 orig_pci_err_en =
227 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN);
228 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, 0);
229 } else {
230 orig_pci_err_cap_dr =
231 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR);
232
233 /* PCI master abort is expected during config cycles */
234 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR, 0x40);
235
236 orig_pci_err_en =
237 in_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN);
238
239 /* disable master abort reporting */
240 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, ~0x40);
241 }
a9a753d5
DJ		 242
243 /* clear error bits */
244 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_DR, ~0);
245
6fa06b0d
TH		 246 /* reset error capture */
247 out_be32(pdata->pci_vbase + MPC85XX_PCI_GAS_TIMR, 0x1);
248
a9a753d5 249 if (edac_pci_add_device(pci, pdata->edac_idx) > 0) {
956b9ba1 250 edac_dbg(3, "failed edac_pci_add_device()\n");
a9a753d5
DJ		 251 goto err;
252 }
253
254 if (edac_op_state == EDAC_OPSTATE_INT) {
666db563 255 pdata->irq = irq_of_parse_and_map(of_node, 0);
f87bd330 256 res = devm_request_irq(&op->dev, pdata->irq,
c92132f5 257 mpc85xx_pci_isr,
e245e3b2 258 IRQF_SHARED,
a9a753d5
DJ		 259 "[EDAC] PCI err", pci);
260 if (res < 0) {
88857ebe
YS		 261 pr_err("%s: Unable to request irq %d for MPC85xx PCI err\n",
262 __func__, pdata->irq);
f87bd330 263 irq_dispose_mapping(pdata->irq);
a9a753d5
DJ		 264 res = -ENODEV;
265 goto err2;
266 }
267
88857ebe 268 pr_info(EDAC_MOD_STR " acquired irq %d for PCI Err\n",
a9a753d5
DJ		 269 pdata->irq);
270 }
271
c92132f5
CL		 272 if (pdata->is_pcie) {
273 /*
274 * Enable all PCIe error interrupt & error detect except invalid
275 * PEX_CONFIG_ADDR/PEX_CONFIG_DATA access interrupt generation
276 * enable bit and invalid PEX_CONFIG_ADDR/PEX_CONFIG_DATA access
277 * detection enable bit. Because PCIe bus code to initialize and
278 * configure these PCIe devices on booting will use some invalid
279 * PEX_CONFIG_ADDR/PEX_CONFIG_DATA, edac driver prints the much
280 * notice information. So disable this detect to fix ugly print.
281 */
282 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, ~0
283 & ~PEX_ERR_ICCAIE_EN_BIT);
284 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR, 0
285 | PEX_ERR_ICCAD_DISR_BIT);
286 }
287
f87bd330 288 devres_remove_group(&op->dev, mpc85xx_pci_err_probe);
956b9ba1 289 edac_dbg(3, "success\n");
88857ebe 290 pr_info(EDAC_MOD_STR " PCI err registered\n");
a9a753d5
DJ		 291
292 return 0;
293
294err2:
f87bd330 295 edac_pci_del_device(&op->dev);
a9a753d5
DJ		 296err:
297 edac_pci_free_ctl_info(pci);
f87bd330 298 devres_release_group(&op->dev, mpc85xx_pci_err_probe);
a9a753d5
DJ		 299 return res;
300}
301
27bda205
YJ		 302static int mpc85xx_pci_err_remove(struct platform_device *op)
303{
304 struct edac_pci_ctl_info *pci = dev_get_drvdata(&op->dev);
305 struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
306
307 edac_dbg(0, "\n");
308
309 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_ADDR, orig_pci_err_cap_dr);
310 out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, orig_pci_err_en);
311
312 edac_pci_del_device(&op->dev);
313 edac_pci_free_ctl_info(pci);
314
315 return 0;
316}
317
666db563
SW		 318static const struct platform_device_id mpc85xx_pci_err_match[] = {
319 {
320 .name = "mpc85xx-pci-edac"
321 },
322 {}
323};
324
325static struct platform_driver mpc85xx_pci_err_driver = {
326 .probe = mpc85xx_pci_err_probe,
27bda205 327 .remove = mpc85xx_pci_err_remove,
666db563
SW		 328 .id_table = mpc85xx_pci_err_match,
329 .driver = {
330 .name = "mpc85xx_pci_err",
331 .suppress_bind_attrs = true,
332 },
333};
a9a753d5
DJ		 334#endif /* CONFIG_PCI */
335
336/**************************** L2 Err device ***************************/
337
338/************************ L2 SYSFS parts ***********************************/
339
340static ssize_t mpc85xx_l2_inject_data_hi_show(struct edac_device_ctl_info
341 *edac_dev, char *data)
342{
343 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
344 return sprintf(data, "0x%08x",
345 in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJHI));
346}
347
348static ssize_t mpc85xx_l2_inject_data_lo_show(struct edac_device_ctl_info
349 *edac_dev, char *data)
350{
351 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
352 return sprintf(data, "0x%08x",
353 in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJLO));
354}
355
356static ssize_t mpc85xx_l2_inject_ctrl_show(struct edac_device_ctl_info
357 *edac_dev, char *data)
358{
359 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
360 return sprintf(data, "0x%08x",
361 in_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJCTL));
362}
363
364static ssize_t mpc85xx_l2_inject_data_hi_store(struct edac_device_ctl_info
365 *edac_dev, const char *data,
366 size_t count)
367{
368 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
369 if (isdigit(*data)) {
370 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJHI,
371 simple_strtoul(data, NULL, 0));
372 return count;
373 }
374 return 0;
375}
376
377static ssize_t mpc85xx_l2_inject_data_lo_store(struct edac_device_ctl_info
378 *edac_dev, const char *data,
379 size_t count)
380{
381 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
382 if (isdigit(*data)) {
383 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJLO,
384 simple_strtoul(data, NULL, 0));
385 return count;
386 }
387 return 0;
388}
389
390static ssize_t mpc85xx_l2_inject_ctrl_store(struct edac_device_ctl_info
391 *edac_dev, const char *data,
392 size_t count)
393{
394 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
395 if (isdigit(*data)) {
396 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINJCTL,
397 simple_strtoul(data, NULL, 0));
398 return count;
399 }
400 return 0;
401}
402
403static struct edac_dev_sysfs_attribute mpc85xx_l2_sysfs_attributes[] = {
404 {
405 .attr = {
406 .name = "inject_data_hi",
407 .mode = (S_IRUGO | S_IWUSR)
408 },
409 .show = mpc85xx_l2_inject_data_hi_show,
410 .store = mpc85xx_l2_inject_data_hi_store},
411 {
412 .attr = {
413 .name = "inject_data_lo",
414 .mode = (S_IRUGO | S_IWUSR)
415 },
416 .show = mpc85xx_l2_inject_data_lo_show,
417 .store = mpc85xx_l2_inject_data_lo_store},
418 {
419 .attr = {
420 .name = "inject_ctrl",
421 .mode = (S_IRUGO | S_IWUSR)
422 },
423 .show = mpc85xx_l2_inject_ctrl_show,
424 .store = mpc85xx_l2_inject_ctrl_store},
425
426 /* End of list */
427 {
428 .attr = {.name = NULL}
429 }
430};
431
432static void mpc85xx_set_l2_sysfs_attributes(struct edac_device_ctl_info
433 *edac_dev)
434{
435 edac_dev->sysfs_attributes = mpc85xx_l2_sysfs_attributes;
436}
437
438/***************************** L2 ops ***********************************/
439
440static void mpc85xx_l2_check(struct edac_device_ctl_info *edac_dev)
441{
442 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
443 u32 err_detect;
444
445 err_detect = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET);
446
447 if (!(err_detect & L2_EDE_MASK))
448 return;
449
88857ebe
YS		 450 pr_err("ECC Error in CPU L2 cache\n");
451 pr_err("L2 Error Detect Register: 0x%08x\n", err_detect);
452 pr_err("L2 Error Capture Data High Register: 0x%08x\n",
a9a753d5 453 in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTDATAHI));
88857ebe 454 pr_err("L2 Error Capture Data Lo Register: 0x%08x\n",
a9a753d5 455 in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTDATALO));
88857ebe 456 pr_err("L2 Error Syndrome Register: 0x%08x\n",
a9a753d5 457 in_be32(pdata->l2_vbase + MPC85XX_L2_CAPTECC));
88857ebe 458 pr_err("L2 Error Attributes Capture Register: 0x%08x\n",
a9a753d5 459 in_be32(pdata->l2_vbase + MPC85XX_L2_ERRATTR));
88857ebe 460 pr_err("L2 Error Address Capture Register: 0x%08x\n",
a9a753d5
DJ		 461 in_be32(pdata->l2_vbase + MPC85XX_L2_ERRADDR));
462
463 /* clear error detect register */
464 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET, err_detect);
465
466 if (err_detect & L2_EDE_CE_MASK)
467 edac_device_handle_ce(edac_dev, 0, 0, edac_dev->ctl_name);
468
469 if (err_detect & L2_EDE_UE_MASK)
470 edac_device_handle_ue(edac_dev, 0, 0, edac_dev->ctl_name);
471}
472
473static irqreturn_t mpc85xx_l2_isr(int irq, void *dev_id)
474{
475 struct edac_device_ctl_info *edac_dev = dev_id;
476 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
477 u32 err_detect;
478
479 err_detect = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET);
480
481 if (!(err_detect & L2_EDE_MASK))
482 return IRQ_NONE;
483
484 mpc85xx_l2_check(edac_dev);
485
486 return IRQ_HANDLED;
487}
488
9b3c6e85 489static int mpc85xx_l2_err_probe(struct platform_device *op)
a9a753d5
DJ		 490{
491 struct edac_device_ctl_info *edac_dev;
492 struct mpc85xx_l2_pdata *pdata;
493 struct resource r;
494 int res;
495
496 if (!devres_open_group(&op->dev, mpc85xx_l2_err_probe, GFP_KERNEL))
497 return -ENOMEM;
498
499 edac_dev = edac_device_alloc_ctl_info(sizeof(*pdata),
500 "cpu", 1, "L", 1, 2, NULL, 0,
501 edac_dev_idx);
502 if (!edac_dev) {
503 devres_release_group(&op->dev, mpc85xx_l2_err_probe);
504 return -ENOMEM;
505 }
506
507 pdata = edac_dev->pvt_info;
508 pdata->name = "mpc85xx_l2_err";
a9a753d5
DJ		 509 edac_dev->dev = &op->dev;
510 dev_set_drvdata(edac_dev->dev, edac_dev);
511 edac_dev->ctl_name = pdata->name;
512 edac_dev->dev_name = pdata->name;
513
a26f95fe 514 res = of_address_to_resource(op->dev.of_node, 0, &r);
a9a753d5 515 if (res) {
88857ebe 516 pr_err("%s: Unable to get resource for L2 err regs\n", __func__);
a9a753d5
DJ		 517 goto err;
518 }
519
520 /* we only need the error registers */
521 r.start += 0xe00;
522
28f65c11
JP		 523 if (!devm_request_mem_region(&op->dev, r.start, resource_size(&r),
524 pdata->name)) {
88857ebe 525 pr_err("%s: Error while requesting mem region\n", __func__);
a9a753d5
DJ		 526 res = -EBUSY;
527 goto err;
528 }
529
28f65c11 530 pdata->l2_vbase = devm_ioremap(&op->dev, r.start, resource_size(&r));
a9a753d5 531 if (!pdata->l2_vbase) {
88857ebe 532 pr_err("%s: Unable to setup L2 err regs\n", __func__);
a9a753d5
DJ		 533 res = -ENOMEM;
534 goto err;
535 }
536
537 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDET, ~0);
538
539 orig_l2_err_disable = in_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS);
540
541 /* clear the err_dis */
542 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS, 0);
543
544 edac_dev->mod_name = EDAC_MOD_STR;
545
546 if (edac_op_state == EDAC_OPSTATE_POLL)
547 edac_dev->edac_check = mpc85xx_l2_check;
548
549 mpc85xx_set_l2_sysfs_attributes(edac_dev);
550
551 pdata->edac_idx = edac_dev_idx++;
552
553 if (edac_device_add_device(edac_dev) > 0) {
956b9ba1 554 edac_dbg(3, "failed edac_device_add_device()\n");
a9a753d5
DJ		 555 goto err;
556 }
557
558 if (edac_op_state == EDAC_OPSTATE_INT) {
a26f95fe 559 pdata->irq = irq_of_parse_and_map(op->dev.of_node, 0);
a9a753d5 560 res = devm_request_irq(&op->dev, pdata->irq,
a18c3f16 561 mpc85xx_l2_isr, IRQF_SHARED,
a9a753d5
DJ		 562 "[EDAC] L2 err", edac_dev);
563 if (res < 0) {
88857ebe
YS		 564 pr_err("%s: Unable to request irq %d for MPC85xx L2 err\n",
565 __func__, pdata->irq);
a9a753d5
DJ		 566 irq_dispose_mapping(pdata->irq);
567 res = -ENODEV;
568 goto err2;
569 }
570
88857ebe 571 pr_info(EDAC_MOD_STR " acquired irq %d for L2 Err\n", pdata->irq);
a9a753d5
DJ		 572
573 edac_dev->op_state = OP_RUNNING_INTERRUPT;
574
575 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINTEN, L2_EIE_MASK);
576 }
577
578 devres_remove_group(&op->dev, mpc85xx_l2_err_probe);
579
956b9ba1 580 edac_dbg(3, "success\n");
88857ebe 581 pr_info(EDAC_MOD_STR " L2 err registered\n");
a9a753d5
DJ		 582
583 return 0;
584
585err2:
586 edac_device_del_device(&op->dev);
587err:
588 devres_release_group(&op->dev, mpc85xx_l2_err_probe);
589 edac_device_free_ctl_info(edac_dev);
590 return res;
591}
592
2dc11581 593static int mpc85xx_l2_err_remove(struct platform_device *op)
a9a753d5
DJ		 594{
595 struct edac_device_ctl_info *edac_dev = dev_get_drvdata(&op->dev);
596 struct mpc85xx_l2_pdata *pdata = edac_dev->pvt_info;
597
956b9ba1 598 edac_dbg(0, "\n");
a9a753d5
DJ		 599
600 if (edac_op_state == EDAC_OPSTATE_INT) {
601 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRINTEN, 0);
602 irq_dispose_mapping(pdata->irq);
603 }
604
605 out_be32(pdata->l2_vbase + MPC85XX_L2_ERRDIS, orig_l2_err_disable);
606 edac_device_del_device(&op->dev);
607 edac_device_free_ctl_info(edac_dev);
608 return 0;
609}
610
1afaa055 611static const struct of_device_id mpc85xx_l2_err_of_match[] = {
29d6cf26
KG		 612/* deprecate the fsl,85.. forms in the future, 2.6.30? */
613 { .compatible = "fsl,8540-l2-cache-controller", },
614 { .compatible = "fsl,8541-l2-cache-controller", },
615 { .compatible = "fsl,8544-l2-cache-controller", },
616 { .compatible = "fsl,8548-l2-cache-controller", },
617 { .compatible = "fsl,8555-l2-cache-controller", },
618 { .compatible = "fsl,8568-l2-cache-controller", },
619 { .compatible = "fsl,mpc8536-l2-cache-controller", },
620 { .compatible = "fsl,mpc8540-l2-cache-controller", },
621 { .compatible = "fsl,mpc8541-l2-cache-controller", },
622 { .compatible = "fsl,mpc8544-l2-cache-controller", },
623 { .compatible = "fsl,mpc8548-l2-cache-controller", },
624 { .compatible = "fsl,mpc8555-l2-cache-controller", },
625 { .compatible = "fsl,mpc8560-l2-cache-controller", },
626 { .compatible = "fsl,mpc8568-l2-cache-controller", },
cd1542c8 627 { .compatible = "fsl,mpc8569-l2-cache-controller", },
29d6cf26 628 { .compatible = "fsl,mpc8572-l2-cache-controller", },
cd1542c8
AV		 629 { .compatible = "fsl,p1020-l2-cache-controller", },
630 { .compatible = "fsl,p1021-l2-cache-controller", },
a014554e 631 { .compatible = "fsl,p2020-l2-cache-controller", },
321d17c1 632 { .compatible = "fsl,t2080-l2-cache-controller", },
a9a753d5
DJ		 633 {},
634};
952e1c66 635MODULE_DEVICE_TABLE(of, mpc85xx_l2_err_of_match);
a9a753d5 636
00006124 637static struct platform_driver mpc85xx_l2_err_driver = {
a9a753d5
DJ		 638 .probe = mpc85xx_l2_err_probe,
639 .remove = mpc85xx_l2_err_remove,
640 .driver = {
4018294b 641 .name = "mpc85xx_l2_err",
4018294b
GL		 642 .of_match_table = mpc85xx_l2_err_of_match,
643 },
a9a753d5
DJ		 644};
645
1afaa055 646static const struct of_device_id mpc85xx_mc_err_of_match[] = {
29d6cf26
KG		 647/* deprecate the fsl,85.. forms in the future, 2.6.30? */
648 { .compatible = "fsl,8540-memory-controller", },
649 { .compatible = "fsl,8541-memory-controller", },
650 { .compatible = "fsl,8544-memory-controller", },
651 { .compatible = "fsl,8548-memory-controller", },
652 { .compatible = "fsl,8555-memory-controller", },
653 { .compatible = "fsl,8568-memory-controller", },
654 { .compatible = "fsl,mpc8536-memory-controller", },
655 { .compatible = "fsl,mpc8540-memory-controller", },
656 { .compatible = "fsl,mpc8541-memory-controller", },
657 { .compatible = "fsl,mpc8544-memory-controller", },
658 { .compatible = "fsl,mpc8548-memory-controller", },
659 { .compatible = "fsl,mpc8555-memory-controller", },
660 { .compatible = "fsl,mpc8560-memory-controller", },
661 { .compatible = "fsl,mpc8568-memory-controller", },
5528e229 662 { .compatible = "fsl,mpc8569-memory-controller", },
29d6cf26 663 { .compatible = "fsl,mpc8572-memory-controller", },
b4846251 664 { .compatible = "fsl,mpc8349-memory-controller", },
cd1542c8
AV		 665 { .compatible = "fsl,p1020-memory-controller", },
666 { .compatible = "fsl,p1021-memory-controller", },
a014554e 667 { .compatible = "fsl,p2020-memory-controller", },
86f9a433 668 { .compatible = "fsl,qoriq-memory-controller", },
a9a753d5
DJ		 669 {},
670};
952e1c66 671MODULE_DEVICE_TABLE(of, mpc85xx_mc_err_of_match);
a9a753d5 672
00006124 673static struct platform_driver mpc85xx_mc_err_driver = {
d43a9fb2
YS		 674 .probe = fsl_mc_err_probe,
675 .remove = fsl_mc_err_remove,
a9a753d5 676 .driver = {
4018294b 677 .name = "mpc85xx_mc_err",
4018294b
GL		 678 .of_match_table = mpc85xx_mc_err_of_match,
679 },
a9a753d5
DJ		 680};
681
d54051f1
TR		 682static struct platform_driver * const drivers[] = {
683 &mpc85xx_mc_err_driver,
684 &mpc85xx_l2_err_driver,
666db563
SW		 685#ifdef CONFIG_PCI
686 &mpc85xx_pci_err_driver,
687#endif
d54051f1
TR		 688};
689
a9a753d5
DJ		 690static int __init mpc85xx_mc_init(void)
691{
692 int res = 0;
f2b59ac6 693 u32 __maybe_unused pvr = 0;
a9a753d5 694
88857ebe 695 pr_info("Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software\n");
a9a753d5
DJ		 696
697 /* make sure error reporting method is sane */
698 switch (edac_op_state) {
699 case EDAC_OPSTATE_POLL:
700 case EDAC_OPSTATE_INT:
701 break;
702 default:
703 edac_op_state = EDAC_OPSTATE_INT;
704 break;
705 }
706
d54051f1 707 res = platform_register_drivers(drivers, ARRAY_SIZE(drivers));
a9a753d5 708 if (res)
88857ebe 709 pr_warn(EDAC_MOD_STR "drivers fail to register\n");
a9a753d5 710
a9a753d5
DJ		 711 return 0;
712}
713
714module_init(mpc85xx_mc_init);
715
716static void __exit mpc85xx_mc_exit(void)
717{
d54051f1 718 platform_unregister_drivers(drivers, ARRAY_SIZE(drivers));
a9a753d5
DJ		 719}
720
721module_exit(mpc85xx_mc_exit);
722
723MODULE_LICENSE("GPL");
724MODULE_AUTHOR("Montavista Software, Inc.");
725module_param(edac_op_state, int, 0444);
726MODULE_PARM_DESC(edac_op_state,
727 "EDAC Error Reporting state: 0=Poll, 2=Interrupt");
Empty description
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