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ae9b56e3 PCK |
1 | /* |
2 | * Synopsys DDR ECC Driver | |
3 | * This driver is based on ppc4xx_edac.c drivers | |
4 | * | |
5 | * Copyright (C) 2012 - 2014 Xilinx, Inc. | |
6 | * | |
7 | * This program is free software: you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation, either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * This file is subject to the terms and conditions of the GNU General Public | |
18 | * License. See the file "COPYING" in the main directory of this archive | |
19 | * for more details | |
20 | */ | |
21 | ||
22 | #include <linux/edac.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/platform_device.h> | |
b500b4a0 | 25 | #include <linux/interrupt.h> |
3d02a897 MN |
26 | #include <linux/of.h> |
27 | #include <linux/of_device.h> | |
ae9b56e3 | 28 | |
78d88e8a | 29 | #include "edac_module.h" |
ae9b56e3 PCK |
30 | |
31 | /* Number of cs_rows needed per memory controller */ | |
1b51adc6 | 32 | #define SYNPS_EDAC_NR_CSROWS 1 |
ae9b56e3 PCK |
33 | |
34 | /* Number of channels per memory controller */ | |
1b51adc6 | 35 | #define SYNPS_EDAC_NR_CHANS 1 |
ae9b56e3 PCK |
36 | |
37 | /* Granularity of reported error in bytes */ | |
1b51adc6 | 38 | #define SYNPS_EDAC_ERR_GRAIN 1 |
ae9b56e3 | 39 | |
1b51adc6 | 40 | #define SYNPS_EDAC_MSG_SIZE 256 |
ae9b56e3 | 41 | |
1b51adc6 MN |
42 | #define SYNPS_EDAC_MOD_STRING "synps_edac" |
43 | #define SYNPS_EDAC_MOD_VER "1" | |
ae9b56e3 PCK |
44 | |
45 | /* Synopsys DDR memory controller registers that are relevant to ECC */ | |
1b51adc6 MN |
46 | #define CTRL_OFST 0x0 |
47 | #define T_ZQ_OFST 0xA4 | |
ae9b56e3 PCK |
48 | |
49 | /* ECC control register */ | |
1b51adc6 | 50 | #define ECC_CTRL_OFST 0xC4 |
ae9b56e3 | 51 | /* ECC log register */ |
1b51adc6 | 52 | #define CE_LOG_OFST 0xC8 |
ae9b56e3 | 53 | /* ECC address register */ |
1b51adc6 | 54 | #define CE_ADDR_OFST 0xCC |
ae9b56e3 | 55 | /* ECC data[31:0] register */ |
1b51adc6 | 56 | #define CE_DATA_31_0_OFST 0xD0 |
ae9b56e3 PCK |
57 | |
58 | /* Uncorrectable error info registers */ | |
1b51adc6 MN |
59 | #define UE_LOG_OFST 0xDC |
60 | #define UE_ADDR_OFST 0xE0 | |
61 | #define UE_DATA_31_0_OFST 0xE4 | |
ae9b56e3 | 62 | |
1b51adc6 MN |
63 | #define STAT_OFST 0xF0 |
64 | #define SCRUB_OFST 0xF4 | |
ae9b56e3 PCK |
65 | |
66 | /* Control register bit field definitions */ | |
1b51adc6 MN |
67 | #define CTRL_BW_MASK 0xC |
68 | #define CTRL_BW_SHIFT 2 | |
ae9b56e3 | 69 | |
1b51adc6 MN |
70 | #define DDRCTL_WDTH_16 1 |
71 | #define DDRCTL_WDTH_32 0 | |
ae9b56e3 PCK |
72 | |
73 | /* ZQ register bit field definitions */ | |
1b51adc6 | 74 | #define T_ZQ_DDRMODE_MASK 0x2 |
ae9b56e3 PCK |
75 | |
76 | /* ECC control register bit field definitions */ | |
1b51adc6 MN |
77 | #define ECC_CTRL_CLR_CE_ERR 0x2 |
78 | #define ECC_CTRL_CLR_UE_ERR 0x1 | |
ae9b56e3 PCK |
79 | |
80 | /* ECC correctable/uncorrectable error log register definitions */ | |
1b51adc6 MN |
81 | #define LOG_VALID 0x1 |
82 | #define CE_LOG_BITPOS_MASK 0xFE | |
83 | #define CE_LOG_BITPOS_SHIFT 1 | |
ae9b56e3 PCK |
84 | |
85 | /* ECC correctable/uncorrectable error address register definitions */ | |
1b51adc6 MN |
86 | #define ADDR_COL_MASK 0xFFF |
87 | #define ADDR_ROW_MASK 0xFFFF000 | |
88 | #define ADDR_ROW_SHIFT 12 | |
89 | #define ADDR_BANK_MASK 0x70000000 | |
90 | #define ADDR_BANK_SHIFT 28 | |
ae9b56e3 PCK |
91 | |
92 | /* ECC statistic register definitions */ | |
1b51adc6 MN |
93 | #define STAT_UECNT_MASK 0xFF |
94 | #define STAT_CECNT_MASK 0xFF00 | |
95 | #define STAT_CECNT_SHIFT 8 | |
ae9b56e3 PCK |
96 | |
97 | /* ECC scrub register definitions */ | |
1b51adc6 MN |
98 | #define SCRUB_MODE_MASK 0x7 |
99 | #define SCRUB_MODE_SECDED 0x4 | |
ae9b56e3 | 100 | |
e926ae57 MN |
101 | /* DDR ECC Quirks */ |
102 | #define DDR_ECC_INTR_SUPPORT BIT(0) | |
103 | #define DDR_ECC_DATA_POISON_SUPPORT BIT(1) | |
104 | ||
105 | /* ZynqMP Enhanced DDR memory controller registers that are relevant to ECC */ | |
106 | /* ECC Configuration Registers */ | |
107 | #define ECC_CFG0_OFST 0x70 | |
108 | #define ECC_CFG1_OFST 0x74 | |
109 | ||
110 | /* ECC Status Register */ | |
111 | #define ECC_STAT_OFST 0x78 | |
112 | ||
113 | /* ECC Clear Register */ | |
114 | #define ECC_CLR_OFST 0x7C | |
115 | ||
116 | /* ECC Error count Register */ | |
117 | #define ECC_ERRCNT_OFST 0x80 | |
118 | ||
119 | /* ECC Corrected Error Address Register */ | |
120 | #define ECC_CEADDR0_OFST 0x84 | |
121 | #define ECC_CEADDR1_OFST 0x88 | |
122 | ||
123 | /* ECC Syndrome Registers */ | |
124 | #define ECC_CSYND0_OFST 0x8C | |
125 | #define ECC_CSYND1_OFST 0x90 | |
126 | #define ECC_CSYND2_OFST 0x94 | |
127 | ||
128 | /* ECC Bit Mask0 Address Register */ | |
129 | #define ECC_BITMASK0_OFST 0x98 | |
130 | #define ECC_BITMASK1_OFST 0x9C | |
131 | #define ECC_BITMASK2_OFST 0xA0 | |
132 | ||
133 | /* ECC UnCorrected Error Address Register */ | |
134 | #define ECC_UEADDR0_OFST 0xA4 | |
135 | #define ECC_UEADDR1_OFST 0xA8 | |
136 | ||
137 | /* ECC Syndrome Registers */ | |
138 | #define ECC_UESYND0_OFST 0xAC | |
139 | #define ECC_UESYND1_OFST 0xB0 | |
140 | #define ECC_UESYND2_OFST 0xB4 | |
141 | ||
142 | /* ECC Poison Address Reg */ | |
143 | #define ECC_POISON0_OFST 0xB8 | |
144 | #define ECC_POISON1_OFST 0xBC | |
145 | ||
146 | #define ECC_ADDRMAP0_OFFSET 0x200 | |
147 | ||
148 | /* Control register bitfield definitions */ | |
149 | #define ECC_CTRL_BUSWIDTH_MASK 0x3000 | |
150 | #define ECC_CTRL_BUSWIDTH_SHIFT 12 | |
151 | #define ECC_CTRL_CLR_CE_ERRCNT BIT(2) | |
152 | #define ECC_CTRL_CLR_UE_ERRCNT BIT(3) | |
153 | ||
154 | /* DDR Control Register width definitions */ | |
155 | #define DDRCTL_EWDTH_16 2 | |
156 | #define DDRCTL_EWDTH_32 1 | |
157 | #define DDRCTL_EWDTH_64 0 | |
158 | ||
159 | /* ECC status register definitions */ | |
160 | #define ECC_STAT_UECNT_MASK 0xF0000 | |
161 | #define ECC_STAT_UECNT_SHIFT 16 | |
162 | #define ECC_STAT_CECNT_MASK 0xF00 | |
163 | #define ECC_STAT_CECNT_SHIFT 8 | |
164 | #define ECC_STAT_BITNUM_MASK 0x7F | |
165 | ||
166 | /* DDR QOS Interrupt register definitions */ | |
167 | #define DDR_QOS_IRQ_STAT_OFST 0x20200 | |
168 | #define DDR_QOSUE_MASK 0x4 | |
169 | #define DDR_QOSCE_MASK 0x2 | |
170 | #define ECC_CE_UE_INTR_MASK 0x6 | |
171 | #define DDR_QOS_IRQ_EN_OFST 0x20208 | |
172 | #define DDR_QOS_IRQ_DB_OFST 0x2020C | |
173 | ||
174 | /* ECC Corrected Error Register Mask and Shifts*/ | |
175 | #define ECC_CEADDR0_RW_MASK 0x3FFFF | |
176 | #define ECC_CEADDR0_RNK_MASK BIT(24) | |
177 | #define ECC_CEADDR1_BNKGRP_MASK 0x3000000 | |
178 | #define ECC_CEADDR1_BNKNR_MASK 0x70000 | |
179 | #define ECC_CEADDR1_BLKNR_MASK 0xFFF | |
180 | #define ECC_CEADDR1_BNKGRP_SHIFT 24 | |
181 | #define ECC_CEADDR1_BNKNR_SHIFT 16 | |
182 | ||
183 | /* ECC Poison register shifts */ | |
184 | #define ECC_POISON0_RANK_SHIFT 24 | |
185 | #define ECC_POISON0_RANK_MASK BIT(24) | |
186 | #define ECC_POISON0_COLUMN_SHIFT 0 | |
187 | #define ECC_POISON0_COLUMN_MASK 0xFFF | |
188 | #define ECC_POISON1_BG_SHIFT 28 | |
189 | #define ECC_POISON1_BG_MASK 0x30000000 | |
190 | #define ECC_POISON1_BANKNR_SHIFT 24 | |
191 | #define ECC_POISON1_BANKNR_MASK 0x7000000 | |
192 | #define ECC_POISON1_ROW_SHIFT 0 | |
193 | #define ECC_POISON1_ROW_MASK 0x3FFFF | |
194 | ||
195 | /* DDR Memory type defines */ | |
196 | #define MEM_TYPE_DDR3 0x1 | |
197 | #define MEM_TYPE_LPDDR3 0x8 | |
198 | #define MEM_TYPE_DDR2 0x4 | |
199 | #define MEM_TYPE_DDR4 0x10 | |
200 | #define MEM_TYPE_LPDDR4 0x20 | |
201 | ||
202 | /* DDRC Software control register */ | |
203 | #define DDRC_SWCTL 0x320 | |
204 | ||
205 | /* DDRC ECC CE & UE poison mask */ | |
206 | #define ECC_CEPOISON_MASK 0x3 | |
207 | #define ECC_UEPOISON_MASK 0x1 | |
208 | ||
209 | /* DDRC Device config masks */ | |
210 | #define DDRC_MSTR_CFG_MASK 0xC0000000 | |
211 | #define DDRC_MSTR_CFG_SHIFT 30 | |
212 | #define DDRC_MSTR_CFG_X4_MASK 0x0 | |
213 | #define DDRC_MSTR_CFG_X8_MASK 0x1 | |
214 | #define DDRC_MSTR_CFG_X16_MASK 0x2 | |
215 | #define DDRC_MSTR_CFG_X32_MASK 0x3 | |
216 | ||
217 | #define DDR_MAX_ROW_SHIFT 18 | |
218 | #define DDR_MAX_COL_SHIFT 14 | |
219 | #define DDR_MAX_BANK_SHIFT 3 | |
220 | #define DDR_MAX_BANKGRP_SHIFT 2 | |
221 | ||
222 | #define ROW_MAX_VAL_MASK 0xF | |
223 | #define COL_MAX_VAL_MASK 0xF | |
224 | #define BANK_MAX_VAL_MASK 0x1F | |
225 | #define BANKGRP_MAX_VAL_MASK 0x1F | |
226 | #define RANK_MAX_VAL_MASK 0x1F | |
227 | ||
228 | #define ROW_B0_BASE 6 | |
229 | #define ROW_B1_BASE 7 | |
230 | #define ROW_B2_BASE 8 | |
231 | #define ROW_B3_BASE 9 | |
232 | #define ROW_B4_BASE 10 | |
233 | #define ROW_B5_BASE 11 | |
234 | #define ROW_B6_BASE 12 | |
235 | #define ROW_B7_BASE 13 | |
236 | #define ROW_B8_BASE 14 | |
237 | #define ROW_B9_BASE 15 | |
238 | #define ROW_B10_BASE 16 | |
239 | #define ROW_B11_BASE 17 | |
240 | #define ROW_B12_BASE 18 | |
241 | #define ROW_B13_BASE 19 | |
242 | #define ROW_B14_BASE 20 | |
243 | #define ROW_B15_BASE 21 | |
244 | #define ROW_B16_BASE 22 | |
245 | #define ROW_B17_BASE 23 | |
246 | ||
247 | #define COL_B2_BASE 2 | |
248 | #define COL_B3_BASE 3 | |
249 | #define COL_B4_BASE 4 | |
250 | #define COL_B5_BASE 5 | |
251 | #define COL_B6_BASE 6 | |
252 | #define COL_B7_BASE 7 | |
253 | #define COL_B8_BASE 8 | |
254 | #define COL_B9_BASE 9 | |
255 | #define COL_B10_BASE 10 | |
256 | #define COL_B11_BASE 11 | |
257 | #define COL_B12_BASE 12 | |
258 | #define COL_B13_BASE 13 | |
259 | ||
260 | #define BANK_B0_BASE 2 | |
261 | #define BANK_B1_BASE 3 | |
262 | #define BANK_B2_BASE 4 | |
263 | ||
264 | #define BANKGRP_B0_BASE 2 | |
265 | #define BANKGRP_B1_BASE 3 | |
266 | ||
267 | #define RANK_B0_BASE 6 | |
268 | ||
ae9b56e3 | 269 | /** |
225af74d MN |
270 | * struct ecc_error_info - ECC error log information. |
271 | * @row: Row number. | |
272 | * @col: Column number. | |
273 | * @bank: Bank number. | |
274 | * @bitpos: Bit position. | |
275 | * @data: Data causing the error. | |
b500b4a0 MN |
276 | * @bankgrpnr: Bank group number. |
277 | * @blknr: Block number. | |
ae9b56e3 PCK |
278 | */ |
279 | struct ecc_error_info { | |
280 | u32 row; | |
281 | u32 col; | |
282 | u32 bank; | |
283 | u32 bitpos; | |
284 | u32 data; | |
b500b4a0 MN |
285 | u32 bankgrpnr; |
286 | u32 blknr; | |
ae9b56e3 PCK |
287 | }; |
288 | ||
289 | /** | |
225af74d MN |
290 | * struct synps_ecc_status - ECC status information to report. |
291 | * @ce_cnt: Correctable error count. | |
292 | * @ue_cnt: Uncorrectable error count. | |
293 | * @ceinfo: Correctable error log information. | |
294 | * @ueinfo: Uncorrectable error log information. | |
ae9b56e3 PCK |
295 | */ |
296 | struct synps_ecc_status { | |
297 | u32 ce_cnt; | |
298 | u32 ue_cnt; | |
299 | struct ecc_error_info ceinfo; | |
300 | struct ecc_error_info ueinfo; | |
301 | }; | |
302 | ||
303 | /** | |
225af74d | 304 | * struct synps_edac_priv - DDR memory controller private instance data. |
1a81361f MN |
305 | * @baseaddr: Base address of the DDR controller. |
306 | * @message: Buffer for framing the event specific info. | |
307 | * @stat: ECC status information. | |
308 | * @p_data: Platform data. | |
309 | * @ce_cnt: Correctable Error count. | |
310 | * @ue_cnt: Uncorrectable Error count. | |
311 | * @poison_addr: Data poison address. | |
312 | * @row_shift: Bit shifts for row bit. | |
313 | * @col_shift: Bit shifts for column bit. | |
314 | * @bank_shift: Bit shifts for bank bit. | |
315 | * @bankgrp_shift: Bit shifts for bank group bit. | |
316 | * @rank_shift: Bit shifts for rank bit. | |
ae9b56e3 PCK |
317 | */ |
318 | struct synps_edac_priv { | |
319 | void __iomem *baseaddr; | |
320 | char message[SYNPS_EDAC_MSG_SIZE]; | |
321 | struct synps_ecc_status stat; | |
3d02a897 | 322 | const struct synps_platform_data *p_data; |
ae9b56e3 PCK |
323 | u32 ce_cnt; |
324 | u32 ue_cnt; | |
1a81361f MN |
325 | #ifdef CONFIG_EDAC_DEBUG |
326 | ulong poison_addr; | |
327 | u32 row_shift[18]; | |
328 | u32 col_shift[14]; | |
329 | u32 bank_shift[3]; | |
330 | u32 bankgrp_shift[2]; | |
331 | u32 rank_shift[1]; | |
332 | #endif | |
ae9b56e3 PCK |
333 | }; |
334 | ||
335 | /** | |
3d02a897 MN |
336 | * struct synps_platform_data - synps platform data structure. |
337 | * @get_error_info: Get EDAC error info. | |
338 | * @get_mtype: Get mtype. | |
339 | * @get_dtype: Get dtype. | |
340 | * @get_ecc_state: Get ECC state. | |
341 | * @quirks: To differentiate IPs. | |
342 | */ | |
343 | struct synps_platform_data { | |
344 | int (*get_error_info)(struct synps_edac_priv *priv); | |
345 | enum mem_type (*get_mtype)(const void __iomem *base); | |
346 | enum dev_type (*get_dtype)(const void __iomem *base); | |
347 | bool (*get_ecc_state)(void __iomem *base); | |
348 | int quirks; | |
349 | }; | |
350 | ||
351 | /** | |
352 | * zynq_get_error_info - Get the current ECC error info. | |
353 | * @priv: DDR memory controller private instance data. | |
ae9b56e3 | 354 | * |
3d02a897 | 355 | * Return: one if there is no error, otherwise zero. |
ae9b56e3 | 356 | */ |
3d02a897 | 357 | static int zynq_get_error_info(struct synps_edac_priv *priv) |
ae9b56e3 | 358 | { |
3d02a897 | 359 | struct synps_ecc_status *p; |
ae9b56e3 | 360 | u32 regval, clearval = 0; |
3d02a897 MN |
361 | void __iomem *base; |
362 | ||
363 | base = priv->baseaddr; | |
364 | p = &priv->stat; | |
ae9b56e3 PCK |
365 | |
366 | regval = readl(base + STAT_OFST); | |
367 | if (!regval) | |
368 | return 1; | |
369 | ||
370 | p->ce_cnt = (regval & STAT_CECNT_MASK) >> STAT_CECNT_SHIFT; | |
371 | p->ue_cnt = regval & STAT_UECNT_MASK; | |
372 | ||
373 | regval = readl(base + CE_LOG_OFST); | |
374 | if (!(p->ce_cnt && (regval & LOG_VALID))) | |
375 | goto ue_err; | |
376 | ||
377 | p->ceinfo.bitpos = (regval & CE_LOG_BITPOS_MASK) >> CE_LOG_BITPOS_SHIFT; | |
378 | regval = readl(base + CE_ADDR_OFST); | |
379 | p->ceinfo.row = (regval & ADDR_ROW_MASK) >> ADDR_ROW_SHIFT; | |
380 | p->ceinfo.col = regval & ADDR_COL_MASK; | |
381 | p->ceinfo.bank = (regval & ADDR_BANK_MASK) >> ADDR_BANK_SHIFT; | |
382 | p->ceinfo.data = readl(base + CE_DATA_31_0_OFST); | |
1b51adc6 | 383 | edac_dbg(3, "CE bit position: %d data: %d\n", p->ceinfo.bitpos, |
ae9b56e3 PCK |
384 | p->ceinfo.data); |
385 | clearval = ECC_CTRL_CLR_CE_ERR; | |
386 | ||
387 | ue_err: | |
388 | regval = readl(base + UE_LOG_OFST); | |
389 | if (!(p->ue_cnt && (regval & LOG_VALID))) | |
390 | goto out; | |
391 | ||
392 | regval = readl(base + UE_ADDR_OFST); | |
393 | p->ueinfo.row = (regval & ADDR_ROW_MASK) >> ADDR_ROW_SHIFT; | |
394 | p->ueinfo.col = regval & ADDR_COL_MASK; | |
395 | p->ueinfo.bank = (regval & ADDR_BANK_MASK) >> ADDR_BANK_SHIFT; | |
396 | p->ueinfo.data = readl(base + UE_DATA_31_0_OFST); | |
397 | clearval |= ECC_CTRL_CLR_UE_ERR; | |
398 | ||
399 | out: | |
400 | writel(clearval, base + ECC_CTRL_OFST); | |
401 | writel(0x0, base + ECC_CTRL_OFST); | |
402 | ||
403 | return 0; | |
404 | } | |
405 | ||
b500b4a0 MN |
406 | /** |
407 | * zynqmp_get_error_info - Get the current ECC error info. | |
408 | * @priv: DDR memory controller private instance data. | |
409 | * | |
410 | * Return: one if there is no error otherwise returns zero. | |
411 | */ | |
412 | static int zynqmp_get_error_info(struct synps_edac_priv *priv) | |
413 | { | |
414 | struct synps_ecc_status *p; | |
415 | u32 regval, clearval = 0; | |
416 | void __iomem *base; | |
417 | ||
418 | base = priv->baseaddr; | |
419 | p = &priv->stat; | |
420 | ||
421 | regval = readl(base + ECC_STAT_OFST); | |
422 | if (!regval) | |
423 | return 1; | |
424 | ||
425 | p->ce_cnt = (regval & ECC_STAT_CECNT_MASK) >> ECC_STAT_CECNT_SHIFT; | |
426 | p->ue_cnt = (regval & ECC_STAT_UECNT_MASK) >> ECC_STAT_UECNT_SHIFT; | |
427 | if (!p->ce_cnt) | |
428 | goto ue_err; | |
429 | ||
430 | p->ceinfo.bitpos = (regval & ECC_STAT_BITNUM_MASK); | |
431 | ||
432 | regval = readl(base + ECC_CEADDR0_OFST); | |
433 | p->ceinfo.row = (regval & ECC_CEADDR0_RW_MASK); | |
434 | regval = readl(base + ECC_CEADDR1_OFST); | |
435 | p->ceinfo.bank = (regval & ECC_CEADDR1_BNKNR_MASK) >> | |
436 | ECC_CEADDR1_BNKNR_SHIFT; | |
437 | p->ceinfo.bankgrpnr = (regval & ECC_CEADDR1_BNKGRP_MASK) >> | |
438 | ECC_CEADDR1_BNKGRP_SHIFT; | |
439 | p->ceinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK); | |
440 | p->ceinfo.data = readl(base + ECC_CSYND0_OFST); | |
441 | edac_dbg(2, "ECCCSYN0: 0x%08X ECCCSYN1: 0x%08X ECCCSYN2: 0x%08X\n", | |
442 | readl(base + ECC_CSYND0_OFST), readl(base + ECC_CSYND1_OFST), | |
443 | readl(base + ECC_CSYND2_OFST)); | |
444 | ue_err: | |
445 | if (!p->ue_cnt) | |
446 | goto out; | |
447 | ||
448 | regval = readl(base + ECC_UEADDR0_OFST); | |
449 | p->ueinfo.row = (regval & ECC_CEADDR0_RW_MASK); | |
450 | regval = readl(base + ECC_UEADDR1_OFST); | |
451 | p->ueinfo.bankgrpnr = (regval & ECC_CEADDR1_BNKGRP_MASK) >> | |
452 | ECC_CEADDR1_BNKGRP_SHIFT; | |
453 | p->ueinfo.bank = (regval & ECC_CEADDR1_BNKNR_MASK) >> | |
454 | ECC_CEADDR1_BNKNR_SHIFT; | |
455 | p->ueinfo.blknr = (regval & ECC_CEADDR1_BLKNR_MASK); | |
456 | p->ueinfo.data = readl(base + ECC_UESYND0_OFST); | |
457 | out: | |
458 | clearval = ECC_CTRL_CLR_CE_ERR | ECC_CTRL_CLR_CE_ERRCNT; | |
459 | clearval |= ECC_CTRL_CLR_UE_ERR | ECC_CTRL_CLR_UE_ERRCNT; | |
460 | writel(clearval, base + ECC_CLR_OFST); | |
461 | writel(0x0, base + ECC_CLR_OFST); | |
462 | ||
463 | return 0; | |
464 | } | |
465 | ||
ae9b56e3 | 466 | /** |
225af74d MN |
467 | * handle_error - Handle Correctable and Uncorrectable errors. |
468 | * @mci: EDAC memory controller instance. | |
469 | * @p: Synopsys ECC status structure. | |
ae9b56e3 | 470 | * |
225af74d | 471 | * Handles ECC correctable and uncorrectable errors. |
ae9b56e3 | 472 | */ |
bb894bc4 | 473 | static void handle_error(struct mem_ctl_info *mci, struct synps_ecc_status *p) |
ae9b56e3 PCK |
474 | { |
475 | struct synps_edac_priv *priv = mci->pvt_info; | |
476 | struct ecc_error_info *pinf; | |
477 | ||
478 | if (p->ce_cnt) { | |
479 | pinf = &p->ceinfo; | |
2fb3f6e1 | 480 | if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) { |
b500b4a0 | 481 | snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, |
2fb3f6e1 SS |
482 | "DDR ECC error type:%s Row %d Bank %d BankGroup Number %d Block Number %d Bit Position: %d Data: 0x%08x", |
483 | "CE", pinf->row, pinf->bank, | |
484 | pinf->bankgrpnr, pinf->blknr, | |
b500b4a0 MN |
485 | pinf->bitpos, pinf->data); |
486 | } else { | |
487 | snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, | |
2fb3f6e1 | 488 | "DDR ECC error type:%s Row %d Bank %d Col %d Bit Position: %d Data: 0x%08x", |
dfc6014e | 489 | "CE", pinf->row, pinf->bank, pinf->col, |
b500b4a0 MN |
490 | pinf->bitpos, pinf->data); |
491 | } | |
492 | ||
ae9b56e3 PCK |
493 | edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, |
494 | p->ce_cnt, 0, 0, 0, 0, 0, -1, | |
495 | priv->message, ""); | |
496 | } | |
497 | ||
498 | if (p->ue_cnt) { | |
499 | pinf = &p->ueinfo; | |
2fb3f6e1 | 500 | if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) { |
b500b4a0 | 501 | snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, |
2fb3f6e1 SS |
502 | "DDR ECC error type :%s Row %d Bank %d BankGroup Number %d Block Number %d", |
503 | "UE", pinf->row, pinf->bank, | |
504 | pinf->bankgrpnr, pinf->blknr); | |
b500b4a0 MN |
505 | } else { |
506 | snprintf(priv->message, SYNPS_EDAC_MSG_SIZE, | |
2fb3f6e1 SS |
507 | "DDR ECC error type :%s Row %d Bank %d Col %d ", |
508 | "UE", pinf->row, pinf->bank, pinf->col); | |
b500b4a0 MN |
509 | } |
510 | ||
ae9b56e3 PCK |
511 | edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, |
512 | p->ue_cnt, 0, 0, 0, 0, 0, -1, | |
513 | priv->message, ""); | |
514 | } | |
515 | ||
516 | memset(p, 0, sizeof(*p)); | |
517 | } | |
518 | ||
b500b4a0 MN |
519 | /** |
520 | * intr_handler - Interrupt Handler for ECC interrupts. | |
521 | * @irq: IRQ number. | |
522 | * @dev_id: Device ID. | |
523 | * | |
524 | * Return: IRQ_NONE, if interrupt not set or IRQ_HANDLED otherwise. | |
525 | */ | |
526 | static irqreturn_t intr_handler(int irq, void *dev_id) | |
527 | { | |
528 | const struct synps_platform_data *p_data; | |
529 | struct mem_ctl_info *mci = dev_id; | |
530 | struct synps_edac_priv *priv; | |
531 | int status, regval; | |
532 | ||
533 | priv = mci->pvt_info; | |
534 | p_data = priv->p_data; | |
535 | ||
536 | regval = readl(priv->baseaddr + DDR_QOS_IRQ_STAT_OFST); | |
537 | regval &= (DDR_QOSCE_MASK | DDR_QOSUE_MASK); | |
538 | if (!(regval & ECC_CE_UE_INTR_MASK)) | |
539 | return IRQ_NONE; | |
540 | ||
541 | status = p_data->get_error_info(priv); | |
542 | if (status) | |
543 | return IRQ_NONE; | |
544 | ||
545 | priv->ce_cnt += priv->stat.ce_cnt; | |
546 | priv->ue_cnt += priv->stat.ue_cnt; | |
547 | handle_error(mci, &priv->stat); | |
548 | ||
549 | edac_dbg(3, "Total error count CE %d UE %d\n", | |
550 | priv->ce_cnt, priv->ue_cnt); | |
551 | writel(regval, priv->baseaddr + DDR_QOS_IRQ_STAT_OFST); | |
552 | return IRQ_HANDLED; | |
553 | } | |
554 | ||
ae9b56e3 | 555 | /** |
225af74d MN |
556 | * check_errors - Check controller for ECC errors. |
557 | * @mci: EDAC memory controller instance. | |
ae9b56e3 | 558 | * |
225af74d | 559 | * Check and post ECC errors. Called by the polling thread. |
ae9b56e3 | 560 | */ |
bb894bc4 | 561 | static void check_errors(struct mem_ctl_info *mci) |
ae9b56e3 | 562 | { |
b500b4a0 MN |
563 | const struct synps_platform_data *p_data; |
564 | struct synps_edac_priv *priv; | |
ae9b56e3 PCK |
565 | int status; |
566 | ||
b500b4a0 MN |
567 | priv = mci->pvt_info; |
568 | p_data = priv->p_data; | |
569 | ||
3d02a897 | 570 | status = p_data->get_error_info(priv); |
ae9b56e3 PCK |
571 | if (status) |
572 | return; | |
573 | ||
574 | priv->ce_cnt += priv->stat.ce_cnt; | |
575 | priv->ue_cnt += priv->stat.ue_cnt; | |
bb894bc4 | 576 | handle_error(mci, &priv->stat); |
ae9b56e3 | 577 | |
1b51adc6 | 578 | edac_dbg(3, "Total error count CE %d UE %d\n", |
ae9b56e3 PCK |
579 | priv->ce_cnt, priv->ue_cnt); |
580 | } | |
581 | ||
582 | /** | |
3d02a897 | 583 | * zynq_get_dtype - Return the controller memory width. |
225af74d | 584 | * @base: DDR memory controller base address. |
ae9b56e3 PCK |
585 | * |
586 | * Get the EDAC device type width appropriate for the current controller | |
587 | * configuration. | |
588 | * | |
589 | * Return: a device type width enumeration. | |
590 | */ | |
3d02a897 | 591 | static enum dev_type zynq_get_dtype(const void __iomem *base) |
ae9b56e3 PCK |
592 | { |
593 | enum dev_type dt; | |
594 | u32 width; | |
595 | ||
596 | width = readl(base + CTRL_OFST); | |
597 | width = (width & CTRL_BW_MASK) >> CTRL_BW_SHIFT; | |
598 | ||
599 | switch (width) { | |
600 | case DDRCTL_WDTH_16: | |
601 | dt = DEV_X2; | |
602 | break; | |
603 | case DDRCTL_WDTH_32: | |
604 | dt = DEV_X4; | |
605 | break; | |
606 | default: | |
607 | dt = DEV_UNKNOWN; | |
608 | } | |
609 | ||
610 | return dt; | |
611 | } | |
612 | ||
b500b4a0 MN |
613 | /** |
614 | * zynqmp_get_dtype - Return the controller memory width. | |
615 | * @base: DDR memory controller base address. | |
616 | * | |
617 | * Get the EDAC device type width appropriate for the current controller | |
618 | * configuration. | |
619 | * | |
620 | * Return: a device type width enumeration. | |
621 | */ | |
622 | static enum dev_type zynqmp_get_dtype(const void __iomem *base) | |
623 | { | |
624 | enum dev_type dt; | |
625 | u32 width; | |
626 | ||
627 | width = readl(base + CTRL_OFST); | |
628 | width = (width & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT; | |
629 | switch (width) { | |
630 | case DDRCTL_EWDTH_16: | |
631 | dt = DEV_X2; | |
632 | break; | |
633 | case DDRCTL_EWDTH_32: | |
634 | dt = DEV_X4; | |
635 | break; | |
636 | case DDRCTL_EWDTH_64: | |
637 | dt = DEV_X8; | |
638 | break; | |
639 | default: | |
640 | dt = DEV_UNKNOWN; | |
641 | } | |
642 | ||
643 | return dt; | |
644 | } | |
645 | ||
ae9b56e3 | 646 | /** |
3d02a897 | 647 | * zynq_get_ecc_state - Return the controller ECC enable/disable status. |
225af74d | 648 | * @base: DDR memory controller base address. |
ae9b56e3 | 649 | * |
225af74d | 650 | * Get the ECC enable/disable status of the controller. |
ae9b56e3 | 651 | * |
225af74d | 652 | * Return: true if enabled, otherwise false. |
ae9b56e3 | 653 | */ |
3d02a897 | 654 | static bool zynq_get_ecc_state(void __iomem *base) |
ae9b56e3 PCK |
655 | { |
656 | enum dev_type dt; | |
657 | u32 ecctype; | |
ae9b56e3 | 658 | |
3d02a897 | 659 | dt = zynq_get_dtype(base); |
ae9b56e3 | 660 | if (dt == DEV_UNKNOWN) |
b500b4a0 | 661 | return false; |
ae9b56e3 PCK |
662 | |
663 | ecctype = readl(base + SCRUB_OFST) & SCRUB_MODE_MASK; | |
664 | if ((ecctype == SCRUB_MODE_SECDED) && (dt == DEV_X2)) | |
b500b4a0 MN |
665 | return true; |
666 | ||
667 | return false; | |
668 | } | |
669 | ||
670 | /** | |
671 | * zynqmp_get_ecc_state - Return the controller ECC enable/disable status. | |
672 | * @base: DDR memory controller base address. | |
673 | * | |
674 | * Get the ECC enable/disable status for the controller. | |
675 | * | |
676 | * Return: a ECC status boolean i.e true/false - enabled/disabled. | |
677 | */ | |
678 | static bool zynqmp_get_ecc_state(void __iomem *base) | |
679 | { | |
680 | enum dev_type dt; | |
681 | u32 ecctype; | |
ae9b56e3 | 682 | |
b500b4a0 MN |
683 | dt = zynqmp_get_dtype(base); |
684 | if (dt == DEV_UNKNOWN) | |
685 | return false; | |
686 | ||
687 | ecctype = readl(base + ECC_CFG0_OFST) & SCRUB_MODE_MASK; | |
688 | if ((ecctype == SCRUB_MODE_SECDED) && | |
689 | ((dt == DEV_X2) || (dt == DEV_X4) || (dt == DEV_X8))) | |
690 | return true; | |
691 | ||
692 | return false; | |
ae9b56e3 PCK |
693 | } |
694 | ||
695 | /** | |
225af74d | 696 | * get_memsize - Read the size of the attached memory device. |
ae9b56e3 | 697 | * |
225af74d | 698 | * Return: the memory size in bytes. |
ae9b56e3 | 699 | */ |
bb894bc4 | 700 | static u32 get_memsize(void) |
ae9b56e3 PCK |
701 | { |
702 | struct sysinfo inf; | |
703 | ||
704 | si_meminfo(&inf); | |
705 | ||
706 | return inf.totalram * inf.mem_unit; | |
707 | } | |
708 | ||
709 | /** | |
3d02a897 | 710 | * zynq_get_mtype - Return the controller memory type. |
225af74d | 711 | * @base: Synopsys ECC status structure. |
ae9b56e3 PCK |
712 | * |
713 | * Get the EDAC memory type appropriate for the current controller | |
714 | * configuration. | |
715 | * | |
716 | * Return: a memory type enumeration. | |
717 | */ | |
3d02a897 | 718 | static enum mem_type zynq_get_mtype(const void __iomem *base) |
ae9b56e3 PCK |
719 | { |
720 | enum mem_type mt; | |
721 | u32 memtype; | |
722 | ||
723 | memtype = readl(base + T_ZQ_OFST); | |
724 | ||
725 | if (memtype & T_ZQ_DDRMODE_MASK) | |
726 | mt = MEM_DDR3; | |
727 | else | |
728 | mt = MEM_DDR2; | |
729 | ||
730 | return mt; | |
731 | } | |
732 | ||
b500b4a0 MN |
733 | /** |
734 | * zynqmp_get_mtype - Returns controller memory type. | |
735 | * @base: Synopsys ECC status structure. | |
736 | * | |
737 | * Get the EDAC memory type appropriate for the current controller | |
738 | * configuration. | |
739 | * | |
740 | * Return: a memory type enumeration. | |
741 | */ | |
742 | static enum mem_type zynqmp_get_mtype(const void __iomem *base) | |
743 | { | |
744 | enum mem_type mt; | |
745 | u32 memtype; | |
746 | ||
747 | memtype = readl(base + CTRL_OFST); | |
748 | ||
749 | if ((memtype & MEM_TYPE_DDR3) || (memtype & MEM_TYPE_LPDDR3)) | |
750 | mt = MEM_DDR3; | |
751 | else if (memtype & MEM_TYPE_DDR2) | |
752 | mt = MEM_RDDR2; | |
753 | else if ((memtype & MEM_TYPE_LPDDR4) || (memtype & MEM_TYPE_DDR4)) | |
754 | mt = MEM_DDR4; | |
755 | else | |
756 | mt = MEM_EMPTY; | |
757 | ||
758 | return mt; | |
759 | } | |
760 | ||
ae9b56e3 | 761 | /** |
225af74d MN |
762 | * init_csrows - Initialize the csrow data. |
763 | * @mci: EDAC memory controller instance. | |
ae9b56e3 | 764 | * |
225af74d MN |
765 | * Initialize the chip select rows associated with the EDAC memory |
766 | * controller instance. | |
ae9b56e3 | 767 | */ |
fa9f6b9e | 768 | static void init_csrows(struct mem_ctl_info *mci) |
ae9b56e3 | 769 | { |
1b51adc6 | 770 | struct synps_edac_priv *priv = mci->pvt_info; |
3d02a897 | 771 | const struct synps_platform_data *p_data; |
ae9b56e3 PCK |
772 | struct csrow_info *csi; |
773 | struct dimm_info *dimm; | |
1b51adc6 MN |
774 | u32 size, row; |
775 | int j; | |
ae9b56e3 | 776 | |
3d02a897 MN |
777 | p_data = priv->p_data; |
778 | ||
ae9b56e3 PCK |
779 | for (row = 0; row < mci->nr_csrows; row++) { |
780 | csi = mci->csrows[row]; | |
bb894bc4 | 781 | size = get_memsize(); |
ae9b56e3 PCK |
782 | |
783 | for (j = 0; j < csi->nr_channels; j++) { | |
1b51adc6 MN |
784 | dimm = csi->channels[j]->dimm; |
785 | dimm->edac_mode = EDAC_FLAG_SECDED; | |
3d02a897 | 786 | dimm->mtype = p_data->get_mtype(priv->baseaddr); |
1b51adc6 MN |
787 | dimm->nr_pages = (size >> PAGE_SHIFT) / csi->nr_channels; |
788 | dimm->grain = SYNPS_EDAC_ERR_GRAIN; | |
3d02a897 | 789 | dimm->dtype = p_data->get_dtype(priv->baseaddr); |
ae9b56e3 PCK |
790 | } |
791 | } | |
ae9b56e3 PCK |
792 | } |
793 | ||
794 | /** | |
225af74d MN |
795 | * mc_init - Initialize one driver instance. |
796 | * @mci: EDAC memory controller instance. | |
797 | * @pdev: platform device. | |
ae9b56e3 | 798 | * |
225af74d | 799 | * Perform initialization of the EDAC memory controller instance and |
ae9b56e3 PCK |
800 | * related driver-private data associated with the memory controller the |
801 | * instance is bound to. | |
ae9b56e3 | 802 | */ |
fa9f6b9e | 803 | static void mc_init(struct mem_ctl_info *mci, struct platform_device *pdev) |
ae9b56e3 | 804 | { |
ae9b56e3 PCK |
805 | struct synps_edac_priv *priv; |
806 | ||
807 | mci->pdev = &pdev->dev; | |
808 | priv = mci->pvt_info; | |
809 | platform_set_drvdata(pdev, mci); | |
810 | ||
811 | /* Initialize controller capabilities and configuration */ | |
812 | mci->mtype_cap = MEM_FLAG_DDR3 | MEM_FLAG_DDR2; | |
813 | mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED; | |
814 | mci->scrub_cap = SCRUB_HW_SRC; | |
815 | mci->scrub_mode = SCRUB_NONE; | |
816 | ||
817 | mci->edac_cap = EDAC_FLAG_SECDED; | |
818 | mci->ctl_name = "synps_ddr_controller"; | |
819 | mci->dev_name = SYNPS_EDAC_MOD_STRING; | |
820 | mci->mod_name = SYNPS_EDAC_MOD_VER; | |
ae9b56e3 | 821 | |
b500b4a0 MN |
822 | if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) { |
823 | edac_op_state = EDAC_OPSTATE_INT; | |
824 | } else { | |
825 | edac_op_state = EDAC_OPSTATE_POLL; | |
826 | mci->edac_check = check_errors; | |
827 | } | |
828 | ||
ae9b56e3 PCK |
829 | mci->ctl_page_to_phys = NULL; |
830 | ||
fa9f6b9e | 831 | init_csrows(mci); |
ae9b56e3 PCK |
832 | } |
833 | ||
b500b4a0 MN |
834 | static void enable_intr(struct synps_edac_priv *priv) |
835 | { | |
836 | /* Enable UE/CE Interrupts */ | |
837 | writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, | |
838 | priv->baseaddr + DDR_QOS_IRQ_EN_OFST); | |
839 | } | |
840 | ||
841 | static void disable_intr(struct synps_edac_priv *priv) | |
842 | { | |
843 | /* Disable UE/CE Interrupts */ | |
844 | writel(DDR_QOSUE_MASK | DDR_QOSCE_MASK, | |
845 | priv->baseaddr + DDR_QOS_IRQ_DB_OFST); | |
846 | } | |
847 | ||
848 | static int setup_irq(struct mem_ctl_info *mci, | |
849 | struct platform_device *pdev) | |
850 | { | |
851 | struct synps_edac_priv *priv = mci->pvt_info; | |
852 | int ret, irq; | |
853 | ||
854 | irq = platform_get_irq(pdev, 0); | |
855 | if (irq < 0) { | |
856 | edac_printk(KERN_ERR, EDAC_MC, | |
857 | "No IRQ %d in DT\n", irq); | |
858 | return irq; | |
859 | } | |
860 | ||
861 | ret = devm_request_irq(&pdev->dev, irq, intr_handler, | |
862 | 0, dev_name(&pdev->dev), mci); | |
863 | if (ret < 0) { | |
864 | edac_printk(KERN_ERR, EDAC_MC, "Failed to request IRQ\n"); | |
865 | return ret; | |
866 | } | |
867 | ||
868 | enable_intr(priv); | |
869 | ||
870 | return 0; | |
871 | } | |
872 | ||
3d02a897 MN |
873 | static const struct synps_platform_data zynq_edac_def = { |
874 | .get_error_info = zynq_get_error_info, | |
875 | .get_mtype = zynq_get_mtype, | |
876 | .get_dtype = zynq_get_dtype, | |
877 | .get_ecc_state = zynq_get_ecc_state, | |
878 | .quirks = 0, | |
879 | }; | |
880 | ||
b500b4a0 MN |
881 | static const struct synps_platform_data zynqmp_edac_def = { |
882 | .get_error_info = zynqmp_get_error_info, | |
883 | .get_mtype = zynqmp_get_mtype, | |
884 | .get_dtype = zynqmp_get_dtype, | |
885 | .get_ecc_state = zynqmp_get_ecc_state, | |
1a81361f MN |
886 | .quirks = (DDR_ECC_INTR_SUPPORT |
887 | #ifdef CONFIG_EDAC_DEBUG | |
888 | | DDR_ECC_DATA_POISON_SUPPORT | |
889 | #endif | |
890 | ), | |
b500b4a0 MN |
891 | }; |
892 | ||
3d02a897 | 893 | static const struct of_device_id synps_edac_match[] = { |
b500b4a0 MN |
894 | { |
895 | .compatible = "xlnx,zynq-ddrc-a05", | |
896 | .data = (void *)&zynq_edac_def | |
897 | }, | |
898 | { | |
899 | .compatible = "xlnx,zynqmp-ddrc-2.40a", | |
900 | .data = (void *)&zynqmp_edac_def | |
901 | }, | |
902 | { | |
903 | /* end of table */ | |
904 | } | |
3d02a897 MN |
905 | }; |
906 | ||
907 | MODULE_DEVICE_TABLE(of, synps_edac_match); | |
908 | ||
1a81361f MN |
909 | #ifdef CONFIG_EDAC_DEBUG |
910 | #define to_mci(k) container_of(k, struct mem_ctl_info, dev) | |
911 | ||
912 | /** | |
913 | * ddr_poison_setup - Update poison registers. | |
914 | * @priv: DDR memory controller private instance data. | |
915 | * | |
916 | * Update poison registers as per DDR mapping. | |
917 | * Return: none. | |
918 | */ | |
919 | static void ddr_poison_setup(struct synps_edac_priv *priv) | |
920 | { | |
921 | int col = 0, row = 0, bank = 0, bankgrp = 0, rank = 0, regval; | |
922 | int index; | |
923 | ulong hif_addr = 0; | |
924 | ||
925 | hif_addr = priv->poison_addr >> 3; | |
926 | ||
927 | for (index = 0; index < DDR_MAX_ROW_SHIFT; index++) { | |
928 | if (priv->row_shift[index]) | |
929 | row |= (((hif_addr >> priv->row_shift[index]) & | |
930 | BIT(0)) << index); | |
931 | else | |
932 | break; | |
933 | } | |
934 | ||
935 | for (index = 0; index < DDR_MAX_COL_SHIFT; index++) { | |
936 | if (priv->col_shift[index] || index < 3) | |
937 | col |= (((hif_addr >> priv->col_shift[index]) & | |
938 | BIT(0)) << index); | |
939 | else | |
940 | break; | |
941 | } | |
942 | ||
943 | for (index = 0; index < DDR_MAX_BANK_SHIFT; index++) { | |
944 | if (priv->bank_shift[index]) | |
945 | bank |= (((hif_addr >> priv->bank_shift[index]) & | |
946 | BIT(0)) << index); | |
947 | else | |
948 | break; | |
949 | } | |
950 | ||
951 | for (index = 0; index < DDR_MAX_BANKGRP_SHIFT; index++) { | |
952 | if (priv->bankgrp_shift[index]) | |
953 | bankgrp |= (((hif_addr >> priv->bankgrp_shift[index]) | |
954 | & BIT(0)) << index); | |
955 | else | |
956 | break; | |
957 | } | |
958 | ||
959 | if (priv->rank_shift[0]) | |
960 | rank = (hif_addr >> priv->rank_shift[0]) & BIT(0); | |
961 | ||
962 | regval = (rank << ECC_POISON0_RANK_SHIFT) & ECC_POISON0_RANK_MASK; | |
963 | regval |= (col << ECC_POISON0_COLUMN_SHIFT) & ECC_POISON0_COLUMN_MASK; | |
964 | writel(regval, priv->baseaddr + ECC_POISON0_OFST); | |
965 | ||
966 | regval = (bankgrp << ECC_POISON1_BG_SHIFT) & ECC_POISON1_BG_MASK; | |
967 | regval |= (bank << ECC_POISON1_BANKNR_SHIFT) & ECC_POISON1_BANKNR_MASK; | |
968 | regval |= (row << ECC_POISON1_ROW_SHIFT) & ECC_POISON1_ROW_MASK; | |
969 | writel(regval, priv->baseaddr + ECC_POISON1_OFST); | |
970 | } | |
971 | ||
972 | static ssize_t inject_data_error_show(struct device *dev, | |
973 | struct device_attribute *mattr, | |
974 | char *data) | |
975 | { | |
976 | struct mem_ctl_info *mci = to_mci(dev); | |
977 | struct synps_edac_priv *priv = mci->pvt_info; | |
978 | ||
979 | return sprintf(data, "Poison0 Addr: 0x%08x\n\rPoison1 Addr: 0x%08x\n\r" | |
980 | "Error injection Address: 0x%lx\n\r", | |
981 | readl(priv->baseaddr + ECC_POISON0_OFST), | |
982 | readl(priv->baseaddr + ECC_POISON1_OFST), | |
983 | priv->poison_addr); | |
984 | } | |
985 | ||
986 | static ssize_t inject_data_error_store(struct device *dev, | |
987 | struct device_attribute *mattr, | |
988 | const char *data, size_t count) | |
989 | { | |
990 | struct mem_ctl_info *mci = to_mci(dev); | |
991 | struct synps_edac_priv *priv = mci->pvt_info; | |
992 | ||
993 | if (kstrtoul(data, 0, &priv->poison_addr)) | |
994 | return -EINVAL; | |
995 | ||
996 | ddr_poison_setup(priv); | |
997 | ||
998 | return count; | |
999 | } | |
1000 | ||
1001 | static ssize_t inject_data_poison_show(struct device *dev, | |
1002 | struct device_attribute *mattr, | |
1003 | char *data) | |
1004 | { | |
1005 | struct mem_ctl_info *mci = to_mci(dev); | |
1006 | struct synps_edac_priv *priv = mci->pvt_info; | |
1007 | ||
1008 | return sprintf(data, "Data Poisoning: %s\n\r", | |
1009 | (((readl(priv->baseaddr + ECC_CFG1_OFST)) & 0x3) == 0x3) | |
1010 | ? ("Correctable Error") : ("UnCorrectable Error")); | |
1011 | } | |
1012 | ||
1013 | static ssize_t inject_data_poison_store(struct device *dev, | |
1014 | struct device_attribute *mattr, | |
1015 | const char *data, size_t count) | |
1016 | { | |
1017 | struct mem_ctl_info *mci = to_mci(dev); | |
1018 | struct synps_edac_priv *priv = mci->pvt_info; | |
1019 | ||
1020 | writel(0, priv->baseaddr + DDRC_SWCTL); | |
1021 | if (strncmp(data, "CE", 2) == 0) | |
1022 | writel(ECC_CEPOISON_MASK, priv->baseaddr + ECC_CFG1_OFST); | |
1023 | else | |
1024 | writel(ECC_UEPOISON_MASK, priv->baseaddr + ECC_CFG1_OFST); | |
1025 | writel(1, priv->baseaddr + DDRC_SWCTL); | |
1026 | ||
1027 | return count; | |
1028 | } | |
1029 | ||
1030 | static DEVICE_ATTR_RW(inject_data_error); | |
1031 | static DEVICE_ATTR_RW(inject_data_poison); | |
1032 | ||
1033 | static int edac_create_sysfs_attributes(struct mem_ctl_info *mci) | |
1034 | { | |
1035 | int rc; | |
1036 | ||
1037 | rc = device_create_file(&mci->dev, &dev_attr_inject_data_error); | |
1038 | if (rc < 0) | |
1039 | return rc; | |
1040 | rc = device_create_file(&mci->dev, &dev_attr_inject_data_poison); | |
1041 | if (rc < 0) | |
1042 | return rc; | |
1043 | return 0; | |
1044 | } | |
1045 | ||
1046 | static void edac_remove_sysfs_attributes(struct mem_ctl_info *mci) | |
1047 | { | |
1048 | device_remove_file(&mci->dev, &dev_attr_inject_data_error); | |
1049 | device_remove_file(&mci->dev, &dev_attr_inject_data_poison); | |
1050 | } | |
1051 | ||
1052 | static void setup_row_address_map(struct synps_edac_priv *priv, u32 *addrmap) | |
1053 | { | |
1054 | u32 addrmap_row_b2_10; | |
1055 | int index; | |
1056 | ||
1057 | priv->row_shift[0] = (addrmap[5] & ROW_MAX_VAL_MASK) + ROW_B0_BASE; | |
1058 | priv->row_shift[1] = ((addrmap[5] >> 8) & | |
1059 | ROW_MAX_VAL_MASK) + ROW_B1_BASE; | |
1060 | ||
1061 | addrmap_row_b2_10 = (addrmap[5] >> 16) & ROW_MAX_VAL_MASK; | |
1062 | if (addrmap_row_b2_10 != ROW_MAX_VAL_MASK) { | |
1063 | for (index = 2; index < 11; index++) | |
1064 | priv->row_shift[index] = addrmap_row_b2_10 + | |
1065 | index + ROW_B0_BASE; | |
1066 | ||
1067 | } else { | |
1068 | priv->row_shift[2] = (addrmap[9] & | |
1069 | ROW_MAX_VAL_MASK) + ROW_B2_BASE; | |
1070 | priv->row_shift[3] = ((addrmap[9] >> 8) & | |
1071 | ROW_MAX_VAL_MASK) + ROW_B3_BASE; | |
1072 | priv->row_shift[4] = ((addrmap[9] >> 16) & | |
1073 | ROW_MAX_VAL_MASK) + ROW_B4_BASE; | |
1074 | priv->row_shift[5] = ((addrmap[9] >> 24) & | |
1075 | ROW_MAX_VAL_MASK) + ROW_B5_BASE; | |
1076 | priv->row_shift[6] = (addrmap[10] & | |
1077 | ROW_MAX_VAL_MASK) + ROW_B6_BASE; | |
1078 | priv->row_shift[7] = ((addrmap[10] >> 8) & | |
1079 | ROW_MAX_VAL_MASK) + ROW_B7_BASE; | |
1080 | priv->row_shift[8] = ((addrmap[10] >> 16) & | |
1081 | ROW_MAX_VAL_MASK) + ROW_B8_BASE; | |
1082 | priv->row_shift[9] = ((addrmap[10] >> 24) & | |
1083 | ROW_MAX_VAL_MASK) + ROW_B9_BASE; | |
1084 | priv->row_shift[10] = (addrmap[11] & | |
1085 | ROW_MAX_VAL_MASK) + ROW_B10_BASE; | |
1086 | } | |
1087 | ||
1088 | priv->row_shift[11] = (((addrmap[5] >> 24) & ROW_MAX_VAL_MASK) == | |
1089 | ROW_MAX_VAL_MASK) ? 0 : (((addrmap[5] >> 24) & | |
1090 | ROW_MAX_VAL_MASK) + ROW_B11_BASE); | |
1091 | priv->row_shift[12] = ((addrmap[6] & ROW_MAX_VAL_MASK) == | |
1092 | ROW_MAX_VAL_MASK) ? 0 : ((addrmap[6] & | |
1093 | ROW_MAX_VAL_MASK) + ROW_B12_BASE); | |
1094 | priv->row_shift[13] = (((addrmap[6] >> 8) & ROW_MAX_VAL_MASK) == | |
1095 | ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 8) & | |
1096 | ROW_MAX_VAL_MASK) + ROW_B13_BASE); | |
1097 | priv->row_shift[14] = (((addrmap[6] >> 16) & ROW_MAX_VAL_MASK) == | |
1098 | ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 16) & | |
1099 | ROW_MAX_VAL_MASK) + ROW_B14_BASE); | |
1100 | priv->row_shift[15] = (((addrmap[6] >> 24) & ROW_MAX_VAL_MASK) == | |
1101 | ROW_MAX_VAL_MASK) ? 0 : (((addrmap[6] >> 24) & | |
1102 | ROW_MAX_VAL_MASK) + ROW_B15_BASE); | |
1103 | priv->row_shift[16] = ((addrmap[7] & ROW_MAX_VAL_MASK) == | |
1104 | ROW_MAX_VAL_MASK) ? 0 : ((addrmap[7] & | |
1105 | ROW_MAX_VAL_MASK) + ROW_B16_BASE); | |
1106 | priv->row_shift[17] = (((addrmap[7] >> 8) & ROW_MAX_VAL_MASK) == | |
1107 | ROW_MAX_VAL_MASK) ? 0 : (((addrmap[7] >> 8) & | |
1108 | ROW_MAX_VAL_MASK) + ROW_B17_BASE); | |
1109 | } | |
1110 | ||
1111 | static void setup_column_address_map(struct synps_edac_priv *priv, u32 *addrmap) | |
1112 | { | |
1113 | u32 width, memtype; | |
1114 | int index; | |
1115 | ||
1116 | memtype = readl(priv->baseaddr + CTRL_OFST); | |
1117 | width = (memtype & ECC_CTRL_BUSWIDTH_MASK) >> ECC_CTRL_BUSWIDTH_SHIFT; | |
1118 | ||
1119 | priv->col_shift[0] = 0; | |
1120 | priv->col_shift[1] = 1; | |
1121 | priv->col_shift[2] = (addrmap[2] & COL_MAX_VAL_MASK) + COL_B2_BASE; | |
1122 | priv->col_shift[3] = ((addrmap[2] >> 8) & | |
1123 | COL_MAX_VAL_MASK) + COL_B3_BASE; | |
1124 | priv->col_shift[4] = (((addrmap[2] >> 16) & COL_MAX_VAL_MASK) == | |
1125 | COL_MAX_VAL_MASK) ? 0 : (((addrmap[2] >> 16) & | |
1126 | COL_MAX_VAL_MASK) + COL_B4_BASE); | |
1127 | priv->col_shift[5] = (((addrmap[2] >> 24) & COL_MAX_VAL_MASK) == | |
1128 | COL_MAX_VAL_MASK) ? 0 : (((addrmap[2] >> 24) & | |
1129 | COL_MAX_VAL_MASK) + COL_B5_BASE); | |
1130 | priv->col_shift[6] = ((addrmap[3] & COL_MAX_VAL_MASK) == | |
1131 | COL_MAX_VAL_MASK) ? 0 : ((addrmap[3] & | |
1132 | COL_MAX_VAL_MASK) + COL_B6_BASE); | |
1133 | priv->col_shift[7] = (((addrmap[3] >> 8) & COL_MAX_VAL_MASK) == | |
1134 | COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 8) & | |
1135 | COL_MAX_VAL_MASK) + COL_B7_BASE); | |
1136 | priv->col_shift[8] = (((addrmap[3] >> 16) & COL_MAX_VAL_MASK) == | |
1137 | COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 16) & | |
1138 | COL_MAX_VAL_MASK) + COL_B8_BASE); | |
1139 | priv->col_shift[9] = (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) == | |
1140 | COL_MAX_VAL_MASK) ? 0 : (((addrmap[3] >> 24) & | |
1141 | COL_MAX_VAL_MASK) + COL_B9_BASE); | |
1142 | if (width == DDRCTL_EWDTH_64) { | |
1143 | if (memtype & MEM_TYPE_LPDDR3) { | |
1144 | priv->col_shift[10] = ((addrmap[4] & | |
1145 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1146 | ((addrmap[4] & COL_MAX_VAL_MASK) + | |
1147 | COL_B10_BASE); | |
1148 | priv->col_shift[11] = (((addrmap[4] >> 8) & | |
1149 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1150 | (((addrmap[4] >> 8) & COL_MAX_VAL_MASK) + | |
1151 | COL_B11_BASE); | |
1152 | } else { | |
1153 | priv->col_shift[11] = ((addrmap[4] & | |
1154 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1155 | ((addrmap[4] & COL_MAX_VAL_MASK) + | |
1156 | COL_B10_BASE); | |
1157 | priv->col_shift[13] = (((addrmap[4] >> 8) & | |
1158 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1159 | (((addrmap[4] >> 8) & COL_MAX_VAL_MASK) + | |
1160 | COL_B11_BASE); | |
1161 | } | |
1162 | } else if (width == DDRCTL_EWDTH_32) { | |
1163 | if (memtype & MEM_TYPE_LPDDR3) { | |
1164 | priv->col_shift[10] = (((addrmap[3] >> 24) & | |
1165 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1166 | (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) + | |
1167 | COL_B9_BASE); | |
1168 | priv->col_shift[11] = ((addrmap[4] & | |
1169 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1170 | ((addrmap[4] & COL_MAX_VAL_MASK) + | |
1171 | COL_B10_BASE); | |
1172 | } else { | |
1173 | priv->col_shift[11] = (((addrmap[3] >> 24) & | |
1174 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1175 | (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) + | |
1176 | COL_B9_BASE); | |
1177 | priv->col_shift[13] = ((addrmap[4] & | |
1178 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1179 | ((addrmap[4] & COL_MAX_VAL_MASK) + | |
1180 | COL_B10_BASE); | |
1181 | } | |
1182 | } else { | |
1183 | if (memtype & MEM_TYPE_LPDDR3) { | |
1184 | priv->col_shift[10] = (((addrmap[3] >> 16) & | |
1185 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1186 | (((addrmap[3] >> 16) & COL_MAX_VAL_MASK) + | |
1187 | COL_B8_BASE); | |
1188 | priv->col_shift[11] = (((addrmap[3] >> 24) & | |
1189 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1190 | (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) + | |
1191 | COL_B9_BASE); | |
1192 | priv->col_shift[13] = ((addrmap[4] & | |
1193 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1194 | ((addrmap[4] & COL_MAX_VAL_MASK) + | |
1195 | COL_B10_BASE); | |
1196 | } else { | |
1197 | priv->col_shift[11] = (((addrmap[3] >> 16) & | |
1198 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1199 | (((addrmap[3] >> 16) & COL_MAX_VAL_MASK) + | |
1200 | COL_B8_BASE); | |
1201 | priv->col_shift[13] = (((addrmap[3] >> 24) & | |
1202 | COL_MAX_VAL_MASK) == COL_MAX_VAL_MASK) ? 0 : | |
1203 | (((addrmap[3] >> 24) & COL_MAX_VAL_MASK) + | |
1204 | COL_B9_BASE); | |
1205 | } | |
1206 | } | |
1207 | ||
1208 | if (width) { | |
1209 | for (index = 9; index > width; index--) { | |
1210 | priv->col_shift[index] = priv->col_shift[index - width]; | |
1211 | priv->col_shift[index - width] = 0; | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | } | |
1216 | ||
1217 | static void setup_bank_address_map(struct synps_edac_priv *priv, u32 *addrmap) | |
1218 | { | |
1219 | priv->bank_shift[0] = (addrmap[1] & BANK_MAX_VAL_MASK) + BANK_B0_BASE; | |
1220 | priv->bank_shift[1] = ((addrmap[1] >> 8) & | |
1221 | BANK_MAX_VAL_MASK) + BANK_B1_BASE; | |
1222 | priv->bank_shift[2] = (((addrmap[1] >> 16) & | |
1223 | BANK_MAX_VAL_MASK) == BANK_MAX_VAL_MASK) ? 0 : | |
1224 | (((addrmap[1] >> 16) & BANK_MAX_VAL_MASK) + | |
1225 | BANK_B2_BASE); | |
1226 | ||
1227 | } | |
1228 | ||
1229 | static void setup_bg_address_map(struct synps_edac_priv *priv, u32 *addrmap) | |
1230 | { | |
1231 | priv->bankgrp_shift[0] = (addrmap[8] & | |
1232 | BANKGRP_MAX_VAL_MASK) + BANKGRP_B0_BASE; | |
1233 | priv->bankgrp_shift[1] = (((addrmap[8] >> 8) & BANKGRP_MAX_VAL_MASK) == | |
1234 | BANKGRP_MAX_VAL_MASK) ? 0 : (((addrmap[8] >> 8) | |
1235 | & BANKGRP_MAX_VAL_MASK) + BANKGRP_B1_BASE); | |
1236 | ||
1237 | } | |
1238 | ||
1239 | static void setup_rank_address_map(struct synps_edac_priv *priv, u32 *addrmap) | |
1240 | { | |
1241 | priv->rank_shift[0] = ((addrmap[0] & RANK_MAX_VAL_MASK) == | |
1242 | RANK_MAX_VAL_MASK) ? 0 : ((addrmap[0] & | |
1243 | RANK_MAX_VAL_MASK) + RANK_B0_BASE); | |
1244 | } | |
1245 | ||
1246 | /** | |
1247 | * setup_address_map - Set Address Map by querying ADDRMAP registers. | |
1248 | * @priv: DDR memory controller private instance data. | |
1249 | * | |
1250 | * Set Address Map by querying ADDRMAP registers. | |
1251 | * | |
1252 | * Return: none. | |
1253 | */ | |
1254 | static void setup_address_map(struct synps_edac_priv *priv) | |
1255 | { | |
1256 | u32 addrmap[12]; | |
1257 | int index; | |
1258 | ||
1259 | for (index = 0; index < 12; index++) { | |
1260 | u32 addrmap_offset; | |
1261 | ||
1262 | addrmap_offset = ECC_ADDRMAP0_OFFSET + (index * 4); | |
1263 | addrmap[index] = readl(priv->baseaddr + addrmap_offset); | |
1264 | } | |
1265 | ||
1266 | setup_row_address_map(priv, addrmap); | |
1267 | ||
1268 | setup_column_address_map(priv, addrmap); | |
1269 | ||
1270 | setup_bank_address_map(priv, addrmap); | |
1271 | ||
1272 | setup_bg_address_map(priv, addrmap); | |
1273 | ||
1274 | setup_rank_address_map(priv, addrmap); | |
1275 | } | |
1276 | #endif /* CONFIG_EDAC_DEBUG */ | |
1277 | ||
ae9b56e3 | 1278 | /** |
225af74d MN |
1279 | * mc_probe - Check controller and bind driver. |
1280 | * @pdev: platform device. | |
ae9b56e3 | 1281 | * |
225af74d | 1282 | * Probe a specific controller instance for binding with the driver. |
ae9b56e3 PCK |
1283 | * |
1284 | * Return: 0 if the controller instance was successfully bound to the | |
1285 | * driver; otherwise, < 0 on error. | |
1286 | */ | |
bb894bc4 | 1287 | static int mc_probe(struct platform_device *pdev) |
ae9b56e3 | 1288 | { |
3d02a897 | 1289 | const struct synps_platform_data *p_data; |
ae9b56e3 PCK |
1290 | struct edac_mc_layer layers[2]; |
1291 | struct synps_edac_priv *priv; | |
1b51adc6 | 1292 | struct mem_ctl_info *mci; |
ae9b56e3 | 1293 | void __iomem *baseaddr; |
1b51adc6 MN |
1294 | struct resource *res; |
1295 | int rc; | |
ae9b56e3 PCK |
1296 | |
1297 | res = platform_get_resource(pdev, IORESOURCE_MEM, 0); | |
1298 | baseaddr = devm_ioremap_resource(&pdev->dev, res); | |
1299 | if (IS_ERR(baseaddr)) | |
1300 | return PTR_ERR(baseaddr); | |
1301 | ||
3d02a897 | 1302 | p_data = of_device_get_match_data(&pdev->dev); |
84de0b49 MN |
1303 | if (!p_data) |
1304 | return -ENODEV; | |
1305 | ||
3d02a897 | 1306 | if (!p_data->get_ecc_state(baseaddr)) { |
ae9b56e3 PCK |
1307 | edac_printk(KERN_INFO, EDAC_MC, "ECC not enabled\n"); |
1308 | return -ENXIO; | |
1309 | } | |
1310 | ||
1311 | layers[0].type = EDAC_MC_LAYER_CHIP_SELECT; | |
1312 | layers[0].size = SYNPS_EDAC_NR_CSROWS; | |
1313 | layers[0].is_virt_csrow = true; | |
1314 | layers[1].type = EDAC_MC_LAYER_CHANNEL; | |
1315 | layers[1].size = SYNPS_EDAC_NR_CHANS; | |
1316 | layers[1].is_virt_csrow = false; | |
1317 | ||
1318 | mci = edac_mc_alloc(0, ARRAY_SIZE(layers), layers, | |
1319 | sizeof(struct synps_edac_priv)); | |
1320 | if (!mci) { | |
1321 | edac_printk(KERN_ERR, EDAC_MC, | |
1322 | "Failed memory allocation for mc instance\n"); | |
1323 | return -ENOMEM; | |
1324 | } | |
1325 | ||
1326 | priv = mci->pvt_info; | |
1327 | priv->baseaddr = baseaddr; | |
3d02a897 MN |
1328 | priv->p_data = p_data; |
1329 | ||
fa9f6b9e | 1330 | mc_init(mci, pdev); |
ae9b56e3 | 1331 | |
b500b4a0 MN |
1332 | if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) { |
1333 | rc = setup_irq(mci, pdev); | |
1334 | if (rc) | |
1335 | goto free_edac_mc; | |
1336 | } | |
1337 | ||
ae9b56e3 PCK |
1338 | rc = edac_mc_add_mc(mci); |
1339 | if (rc) { | |
1340 | edac_printk(KERN_ERR, EDAC_MC, | |
1341 | "Failed to register with EDAC core\n"); | |
1342 | goto free_edac_mc; | |
1343 | } | |
1344 | ||
1a81361f MN |
1345 | #ifdef CONFIG_EDAC_DEBUG |
1346 | if (priv->p_data->quirks & DDR_ECC_DATA_POISON_SUPPORT) { | |
61d35648 ZX |
1347 | rc = edac_create_sysfs_attributes(mci); |
1348 | if (rc) { | |
1a81361f MN |
1349 | edac_printk(KERN_ERR, EDAC_MC, |
1350 | "Failed to create sysfs entries\n"); | |
1351 | goto free_edac_mc; | |
1352 | } | |
1353 | } | |
1354 | ||
1355 | if (of_device_is_compatible(pdev->dev.of_node, | |
1356 | "xlnx,zynqmp-ddrc-2.40a")) | |
1357 | setup_address_map(priv); | |
1358 | #endif | |
1359 | ||
ae9b56e3 PCK |
1360 | /* |
1361 | * Start capturing the correctable and uncorrectable errors. A write of | |
1362 | * 0 starts the counters. | |
1363 | */ | |
b500b4a0 MN |
1364 | if (!(priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)) |
1365 | writel(0x0, baseaddr + ECC_CTRL_OFST); | |
1366 | ||
ae9b56e3 PCK |
1367 | return rc; |
1368 | ||
1369 | free_edac_mc: | |
1370 | edac_mc_free(mci); | |
1371 | ||
1372 | return rc; | |
1373 | } | |
1374 | ||
1375 | /** | |
225af74d MN |
1376 | * mc_remove - Unbind driver from controller. |
1377 | * @pdev: Platform device. | |
ae9b56e3 PCK |
1378 | * |
1379 | * Return: Unconditionally 0 | |
1380 | */ | |
bb894bc4 | 1381 | static int mc_remove(struct platform_device *pdev) |
ae9b56e3 PCK |
1382 | { |
1383 | struct mem_ctl_info *mci = platform_get_drvdata(pdev); | |
b500b4a0 MN |
1384 | struct synps_edac_priv *priv = mci->pvt_info; |
1385 | ||
1386 | if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT) | |
1387 | disable_intr(priv); | |
ae9b56e3 | 1388 | |
1a81361f MN |
1389 | #ifdef CONFIG_EDAC_DEBUG |
1390 | if (priv->p_data->quirks & DDR_ECC_DATA_POISON_SUPPORT) | |
1391 | edac_remove_sysfs_attributes(mci); | |
1392 | #endif | |
1393 | ||
ae9b56e3 PCK |
1394 | edac_mc_del_mc(&pdev->dev); |
1395 | edac_mc_free(mci); | |
1396 | ||
1397 | return 0; | |
1398 | } | |
1399 | ||
ae9b56e3 PCK |
1400 | static struct platform_driver synps_edac_mc_driver = { |
1401 | .driver = { | |
1402 | .name = "synopsys-edac", | |
1403 | .of_match_table = synps_edac_match, | |
1404 | }, | |
bb894bc4 MN |
1405 | .probe = mc_probe, |
1406 | .remove = mc_remove, | |
ae9b56e3 PCK |
1407 | }; |
1408 | ||
1409 | module_platform_driver(synps_edac_mc_driver); | |
1410 | ||
1411 | MODULE_AUTHOR("Xilinx Inc"); | |
1412 | MODULE_DESCRIPTION("Synopsys DDR ECC driver"); | |
1413 | MODULE_LICENSE("GPL v2"); |