1 /* 2 * Copyright 2008-2015 Freescale Semiconductor Inc. 3 * Copyright 2020 NXP 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * * Neither the name of Freescale Semiconductor nor the 13 * names of its contributors may be used to endorse or promote products 14 * derived from this software without specific prior written permission. 15 * 16 * 17 * ALTERNATIVELY, this software may be distributed under the terms of the 18 * GNU General Public License ("GPL") as published by the Free Software 19 * Foundation, either version 2 of that License or (at your option) any 20 * later version. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY 23 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 25 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY 26 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 27 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 31 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 35 36 #include <linux/fsl/guts.h> 37 #include <linux/slab.h> 38 #include <linux/delay.h> 39 #include <linux/module.h> 40 #include <linux/of_platform.h> 41 #include <linux/clk.h> 42 #include <linux/of_address.h> 43 #include <linux/of_irq.h> 44 #include <linux/interrupt.h> 45 #include <linux/libfdt_env.h> 46 47 #include "fman.h" 48 #include "fman_muram.h" 49 #include "fman_keygen.h" 50 51 /* General defines */ 52 #define FMAN_LIODN_TBL 64 /* size of LIODN table */ 53 #define MAX_NUM_OF_MACS 10 54 #define FM_NUM_OF_FMAN_CTRL_EVENT_REGS 4 55 #define BASE_RX_PORTID 0x08 56 #define BASE_TX_PORTID 0x28 57 58 /* Modules registers offsets */ 59 #define BMI_OFFSET 0x00080000 60 #define QMI_OFFSET 0x00080400 61 #define KG_OFFSET 0x000C1000 62 #define DMA_OFFSET 0x000C2000 63 #define FPM_OFFSET 0x000C3000 64 #define IMEM_OFFSET 0x000C4000 65 #define HWP_OFFSET 0x000C7000 66 #define CGP_OFFSET 0x000DB000 67 68 /* Exceptions bit map */ 69 #define EX_DMA_BUS_ERROR 0x80000000 70 #define EX_DMA_READ_ECC 0x40000000 71 #define EX_DMA_SYSTEM_WRITE_ECC 0x20000000 72 #define EX_DMA_FM_WRITE_ECC 0x10000000 73 #define EX_FPM_STALL_ON_TASKS 0x08000000 74 #define EX_FPM_SINGLE_ECC 0x04000000 75 #define EX_FPM_DOUBLE_ECC 0x02000000 76 #define EX_QMI_SINGLE_ECC 0x01000000 77 #define EX_QMI_DEQ_FROM_UNKNOWN_PORTID 0x00800000 78 #define EX_QMI_DOUBLE_ECC 0x00400000 79 #define EX_BMI_LIST_RAM_ECC 0x00200000 80 #define EX_BMI_STORAGE_PROFILE_ECC 0x00100000 81 #define EX_BMI_STATISTICS_RAM_ECC 0x00080000 82 #define EX_IRAM_ECC 0x00040000 83 #define EX_MURAM_ECC 0x00020000 84 #define EX_BMI_DISPATCH_RAM_ECC 0x00010000 85 #define EX_DMA_SINGLE_PORT_ECC 0x00008000 86 87 /* DMA defines */ 88 /* masks */ 89 #define DMA_MODE_BER 0x00200000 90 #define DMA_MODE_ECC 0x00000020 91 #define DMA_MODE_SECURE_PROT 0x00000800 92 #define DMA_MODE_AXI_DBG_MASK 0x0F000000 93 94 #define DMA_TRANSFER_PORTID_MASK 0xFF000000 95 #define DMA_TRANSFER_TNUM_MASK 0x00FF0000 96 #define DMA_TRANSFER_LIODN_MASK 0x00000FFF 97 98 #define DMA_STATUS_BUS_ERR 0x08000000 99 #define DMA_STATUS_READ_ECC 0x04000000 100 #define DMA_STATUS_SYSTEM_WRITE_ECC 0x02000000 101 #define DMA_STATUS_FM_WRITE_ECC 0x01000000 102 #define DMA_STATUS_FM_SPDAT_ECC 0x00080000 103 104 #define DMA_MODE_CACHE_OR_SHIFT 30 105 #define DMA_MODE_AXI_DBG_SHIFT 24 106 #define DMA_MODE_CEN_SHIFT 13 107 #define DMA_MODE_CEN_MASK 0x00000007 108 #define DMA_MODE_DBG_SHIFT 7 109 #define DMA_MODE_AID_MODE_SHIFT 4 110 111 #define DMA_THRESH_COMMQ_SHIFT 24 112 #define DMA_THRESH_READ_INT_BUF_SHIFT 16 113 #define DMA_THRESH_READ_INT_BUF_MASK 0x0000003f 114 #define DMA_THRESH_WRITE_INT_BUF_MASK 0x0000003f 115 116 #define DMA_TRANSFER_PORTID_SHIFT 24 117 #define DMA_TRANSFER_TNUM_SHIFT 16 118 119 #define DMA_CAM_SIZEOF_ENTRY 0x40 120 #define DMA_CAM_UNITS 8 121 122 #define DMA_LIODN_SHIFT 16 123 #define DMA_LIODN_BASE_MASK 0x00000FFF 124 125 /* FPM defines */ 126 #define FPM_EV_MASK_DOUBLE_ECC 0x80000000 127 #define FPM_EV_MASK_STALL 0x40000000 128 #define FPM_EV_MASK_SINGLE_ECC 0x20000000 129 #define FPM_EV_MASK_RELEASE_FM 0x00010000 130 #define FPM_EV_MASK_DOUBLE_ECC_EN 0x00008000 131 #define FPM_EV_MASK_STALL_EN 0x00004000 132 #define FPM_EV_MASK_SINGLE_ECC_EN 0x00002000 133 #define FPM_EV_MASK_EXTERNAL_HALT 0x00000008 134 #define FPM_EV_MASK_ECC_ERR_HALT 0x00000004 135 136 #define FPM_RAM_MURAM_ECC 0x00008000 137 #define FPM_RAM_IRAM_ECC 0x00004000 138 #define FPM_IRAM_ECC_ERR_EX_EN 0x00020000 139 #define FPM_MURAM_ECC_ERR_EX_EN 0x00040000 140 #define FPM_RAM_IRAM_ECC_EN 0x40000000 141 #define FPM_RAM_RAMS_ECC_EN 0x80000000 142 #define FPM_RAM_RAMS_ECC_EN_SRC_SEL 0x08000000 143 144 #define FPM_REV1_MAJOR_MASK 0x0000FF00 145 #define FPM_REV1_MINOR_MASK 0x000000FF 146 147 #define FPM_DISP_LIMIT_SHIFT 24 148 149 #define FPM_PRT_FM_CTL1 0x00000001 150 #define FPM_PRT_FM_CTL2 0x00000002 151 #define FPM_PORT_FM_CTL_PORTID_SHIFT 24 152 #define FPM_PRC_ORA_FM_CTL_SEL_SHIFT 16 153 154 #define FPM_THR1_PRS_SHIFT 24 155 #define FPM_THR1_KG_SHIFT 16 156 #define FPM_THR1_PLCR_SHIFT 8 157 #define FPM_THR1_BMI_SHIFT 0 158 159 #define FPM_THR2_QMI_ENQ_SHIFT 24 160 #define FPM_THR2_QMI_DEQ_SHIFT 0 161 #define FPM_THR2_FM_CTL1_SHIFT 16 162 #define FPM_THR2_FM_CTL2_SHIFT 8 163 164 #define FPM_EV_MASK_CAT_ERR_SHIFT 1 165 #define FPM_EV_MASK_DMA_ERR_SHIFT 0 166 167 #define FPM_REV1_MAJOR_SHIFT 8 168 169 #define FPM_RSTC_FM_RESET 0x80000000 170 #define FPM_RSTC_MAC0_RESET 0x40000000 171 #define FPM_RSTC_MAC1_RESET 0x20000000 172 #define FPM_RSTC_MAC2_RESET 0x10000000 173 #define FPM_RSTC_MAC3_RESET 0x08000000 174 #define FPM_RSTC_MAC8_RESET 0x04000000 175 #define FPM_RSTC_MAC4_RESET 0x02000000 176 #define FPM_RSTC_MAC5_RESET 0x01000000 177 #define FPM_RSTC_MAC6_RESET 0x00800000 178 #define FPM_RSTC_MAC7_RESET 0x00400000 179 #define FPM_RSTC_MAC9_RESET 0x00200000 180 181 #define FPM_TS_INT_SHIFT 16 182 #define FPM_TS_CTL_EN 0x80000000 183 184 /* BMI defines */ 185 #define BMI_INIT_START 0x80000000 186 #define BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC 0x80000000 187 #define BMI_ERR_INTR_EN_LIST_RAM_ECC 0x40000000 188 #define BMI_ERR_INTR_EN_STATISTICS_RAM_ECC 0x20000000 189 #define BMI_ERR_INTR_EN_DISPATCH_RAM_ECC 0x10000000 190 #define BMI_NUM_OF_TASKS_MASK 0x3F000000 191 #define BMI_NUM_OF_EXTRA_TASKS_MASK 0x000F0000 192 #define BMI_NUM_OF_DMAS_MASK 0x00000F00 193 #define BMI_NUM_OF_EXTRA_DMAS_MASK 0x0000000F 194 #define BMI_FIFO_SIZE_MASK 0x000003FF 195 #define BMI_EXTRA_FIFO_SIZE_MASK 0x03FF0000 196 #define BMI_CFG2_DMAS_MASK 0x0000003F 197 #define BMI_CFG2_TASKS_MASK 0x0000003F 198 199 #define BMI_CFG2_TASKS_SHIFT 16 200 #define BMI_CFG2_DMAS_SHIFT 0 201 #define BMI_CFG1_FIFO_SIZE_SHIFT 16 202 #define BMI_NUM_OF_TASKS_SHIFT 24 203 #define BMI_EXTRA_NUM_OF_TASKS_SHIFT 16 204 #define BMI_NUM_OF_DMAS_SHIFT 8 205 #define BMI_EXTRA_NUM_OF_DMAS_SHIFT 0 206 207 #define BMI_FIFO_ALIGN 0x100 208 209 #define BMI_EXTRA_FIFO_SIZE_SHIFT 16 210 211 /* QMI defines */ 212 #define QMI_CFG_ENQ_EN 0x80000000 213 #define QMI_CFG_DEQ_EN 0x40000000 214 #define QMI_CFG_EN_COUNTERS 0x10000000 215 #define QMI_CFG_DEQ_MASK 0x0000003F 216 #define QMI_CFG_ENQ_MASK 0x00003F00 217 #define QMI_CFG_ENQ_SHIFT 8 218 219 #define QMI_ERR_INTR_EN_DOUBLE_ECC 0x80000000 220 #define QMI_ERR_INTR_EN_DEQ_FROM_DEF 0x40000000 221 #define QMI_INTR_EN_SINGLE_ECC 0x80000000 222 223 #define QMI_GS_HALT_NOT_BUSY 0x00000002 224 225 /* HWP defines */ 226 #define HWP_RPIMAC_PEN 0x00000001 227 228 /* IRAM defines */ 229 #define IRAM_IADD_AIE 0x80000000 230 #define IRAM_READY 0x80000000 231 232 /* Default values */ 233 #define DEFAULT_CATASTROPHIC_ERR 0 234 #define DEFAULT_DMA_ERR 0 235 #define DEFAULT_AID_MODE FMAN_DMA_AID_OUT_TNUM 236 #define DEFAULT_DMA_COMM_Q_LOW 0x2A 237 #define DEFAULT_DMA_COMM_Q_HIGH 0x3F 238 #define DEFAULT_CACHE_OVERRIDE 0 239 #define DEFAULT_DMA_CAM_NUM_OF_ENTRIES 64 240 #define DEFAULT_DMA_DBG_CNT_MODE 0 241 #define DEFAULT_DMA_SOS_EMERGENCY 0 242 #define DEFAULT_DMA_WATCHDOG 0 243 #define DEFAULT_DISP_LIMIT 0 244 #define DEFAULT_PRS_DISP_TH 16 245 #define DEFAULT_PLCR_DISP_TH 16 246 #define DEFAULT_KG_DISP_TH 16 247 #define DEFAULT_BMI_DISP_TH 16 248 #define DEFAULT_QMI_ENQ_DISP_TH 16 249 #define DEFAULT_QMI_DEQ_DISP_TH 16 250 #define DEFAULT_FM_CTL1_DISP_TH 16 251 #define DEFAULT_FM_CTL2_DISP_TH 16 252 253 #define DFLT_AXI_DBG_NUM_OF_BEATS 1 254 255 #define DFLT_DMA_READ_INT_BUF_LOW(dma_thresh_max_buf) \ 256 ((dma_thresh_max_buf + 1) / 2) 257 #define DFLT_DMA_READ_INT_BUF_HIGH(dma_thresh_max_buf) \ 258 ((dma_thresh_max_buf + 1) * 3 / 4) 259 #define DFLT_DMA_WRITE_INT_BUF_LOW(dma_thresh_max_buf) \ 260 ((dma_thresh_max_buf + 1) / 2) 261 #define DFLT_DMA_WRITE_INT_BUF_HIGH(dma_thresh_max_buf)\ 262 ((dma_thresh_max_buf + 1) * 3 / 4) 263 264 #define DMA_COMM_Q_LOW_FMAN_V3 0x2A 265 #define DMA_COMM_Q_LOW_FMAN_V2(dma_thresh_max_commq) \ 266 ((dma_thresh_max_commq + 1) / 2) 267 #define DFLT_DMA_COMM_Q_LOW(major, dma_thresh_max_commq) \ 268 ((major == 6) ? DMA_COMM_Q_LOW_FMAN_V3 : \ 269 DMA_COMM_Q_LOW_FMAN_V2(dma_thresh_max_commq)) 270 271 #define DMA_COMM_Q_HIGH_FMAN_V3 0x3f 272 #define DMA_COMM_Q_HIGH_FMAN_V2(dma_thresh_max_commq) \ 273 ((dma_thresh_max_commq + 1) * 3 / 4) 274 #define DFLT_DMA_COMM_Q_HIGH(major, dma_thresh_max_commq) \ 275 ((major == 6) ? DMA_COMM_Q_HIGH_FMAN_V3 : \ 276 DMA_COMM_Q_HIGH_FMAN_V2(dma_thresh_max_commq)) 277 278 #define TOTAL_NUM_OF_TASKS_FMAN_V3L 59 279 #define TOTAL_NUM_OF_TASKS_FMAN_V3H 124 280 #define DFLT_TOTAL_NUM_OF_TASKS(major, minor, bmi_max_num_of_tasks) \ 281 ((major == 6) ? ((minor == 1 || minor == 4) ? \ 282 TOTAL_NUM_OF_TASKS_FMAN_V3L : TOTAL_NUM_OF_TASKS_FMAN_V3H) : \ 283 bmi_max_num_of_tasks) 284 285 #define DMA_CAM_NUM_OF_ENTRIES_FMAN_V3 64 286 #define DMA_CAM_NUM_OF_ENTRIES_FMAN_V2 32 287 #define DFLT_DMA_CAM_NUM_OF_ENTRIES(major) \ 288 (major == 6 ? DMA_CAM_NUM_OF_ENTRIES_FMAN_V3 : \ 289 DMA_CAM_NUM_OF_ENTRIES_FMAN_V2) 290 291 #define FM_TIMESTAMP_1_USEC_BIT 8 292 293 /* Defines used for enabling/disabling FMan interrupts */ 294 #define ERR_INTR_EN_DMA 0x00010000 295 #define ERR_INTR_EN_FPM 0x80000000 296 #define ERR_INTR_EN_BMI 0x00800000 297 #define ERR_INTR_EN_QMI 0x00400000 298 #define ERR_INTR_EN_MURAM 0x00040000 299 #define ERR_INTR_EN_MAC0 0x00004000 300 #define ERR_INTR_EN_MAC1 0x00002000 301 #define ERR_INTR_EN_MAC2 0x00001000 302 #define ERR_INTR_EN_MAC3 0x00000800 303 #define ERR_INTR_EN_MAC4 0x00000400 304 #define ERR_INTR_EN_MAC5 0x00000200 305 #define ERR_INTR_EN_MAC6 0x00000100 306 #define ERR_INTR_EN_MAC7 0x00000080 307 #define ERR_INTR_EN_MAC8 0x00008000 308 #define ERR_INTR_EN_MAC9 0x00000040 309 310 #define INTR_EN_QMI 0x40000000 311 #define INTR_EN_MAC0 0x00080000 312 #define INTR_EN_MAC1 0x00040000 313 #define INTR_EN_MAC2 0x00020000 314 #define INTR_EN_MAC3 0x00010000 315 #define INTR_EN_MAC4 0x00000040 316 #define INTR_EN_MAC5 0x00000020 317 #define INTR_EN_MAC6 0x00000008 318 #define INTR_EN_MAC7 0x00000002 319 #define INTR_EN_MAC8 0x00200000 320 #define INTR_EN_MAC9 0x00100000 321 #define INTR_EN_REV0 0x00008000 322 #define INTR_EN_REV1 0x00004000 323 #define INTR_EN_REV2 0x00002000 324 #define INTR_EN_REV3 0x00001000 325 #define INTR_EN_TMR 0x01000000 326 327 enum fman_dma_aid_mode { 328 FMAN_DMA_AID_OUT_PORT_ID = 0, /* 4 LSB of PORT_ID */ 329 FMAN_DMA_AID_OUT_TNUM /* 4 LSB of TNUM */ 330 }; 331 332 struct fman_iram_regs { 333 u32 iadd; /* FM IRAM instruction address register */ 334 u32 idata; /* FM IRAM instruction data register */ 335 u32 itcfg; /* FM IRAM timing config register */ 336 u32 iready; /* FM IRAM ready register */ 337 }; 338 339 struct fman_fpm_regs { 340 u32 fmfp_tnc; /* FPM TNUM Control 0x00 */ 341 u32 fmfp_prc; /* FPM Port_ID FmCtl Association 0x04 */ 342 u32 fmfp_brkc; /* FPM Breakpoint Control 0x08 */ 343 u32 fmfp_mxd; /* FPM Flush Control 0x0c */ 344 u32 fmfp_dist1; /* FPM Dispatch Thresholds1 0x10 */ 345 u32 fmfp_dist2; /* FPM Dispatch Thresholds2 0x14 */ 346 u32 fm_epi; /* FM Error Pending Interrupts 0x18 */ 347 u32 fm_rie; /* FM Error Interrupt Enable 0x1c */ 348 u32 fmfp_fcev[4]; /* FPM FMan-Controller Event 1-4 0x20-0x2f */ 349 u32 res0030[4]; /* res 0x30 - 0x3f */ 350 u32 fmfp_cee[4]; /* PM FMan-Controller Event 1-4 0x40-0x4f */ 351 u32 res0050[4]; /* res 0x50-0x5f */ 352 u32 fmfp_tsc1; /* FPM TimeStamp Control1 0x60 */ 353 u32 fmfp_tsc2; /* FPM TimeStamp Control2 0x64 */ 354 u32 fmfp_tsp; /* FPM Time Stamp 0x68 */ 355 u32 fmfp_tsf; /* FPM Time Stamp Fraction 0x6c */ 356 u32 fm_rcr; /* FM Rams Control 0x70 */ 357 u32 fmfp_extc; /* FPM External Requests Control 0x74 */ 358 u32 fmfp_ext1; /* FPM External Requests Config1 0x78 */ 359 u32 fmfp_ext2; /* FPM External Requests Config2 0x7c */ 360 u32 fmfp_drd[16]; /* FPM Data_Ram Data 0-15 0x80 - 0xbf */ 361 u32 fmfp_dra; /* FPM Data Ram Access 0xc0 */ 362 u32 fm_ip_rev_1; /* FM IP Block Revision 1 0xc4 */ 363 u32 fm_ip_rev_2; /* FM IP Block Revision 2 0xc8 */ 364 u32 fm_rstc; /* FM Reset Command 0xcc */ 365 u32 fm_cld; /* FM Classifier Debug 0xd0 */ 366 u32 fm_npi; /* FM Normal Pending Interrupts 0xd4 */ 367 u32 fmfp_exte; /* FPM External Requests Enable 0xd8 */ 368 u32 fmfp_ee; /* FPM Event&Mask 0xdc */ 369 u32 fmfp_cev[4]; /* FPM CPU Event 1-4 0xe0-0xef */ 370 u32 res00f0[4]; /* res 0xf0-0xff */ 371 u32 fmfp_ps[50]; /* FPM Port Status 0x100-0x1c7 */ 372 u32 res01c8[14]; /* res 0x1c8-0x1ff */ 373 u32 fmfp_clfabc; /* FPM CLFABC 0x200 */ 374 u32 fmfp_clfcc; /* FPM CLFCC 0x204 */ 375 u32 fmfp_clfaval; /* FPM CLFAVAL 0x208 */ 376 u32 fmfp_clfbval; /* FPM CLFBVAL 0x20c */ 377 u32 fmfp_clfcval; /* FPM CLFCVAL 0x210 */ 378 u32 fmfp_clfamsk; /* FPM CLFAMSK 0x214 */ 379 u32 fmfp_clfbmsk; /* FPM CLFBMSK 0x218 */ 380 u32 fmfp_clfcmsk; /* FPM CLFCMSK 0x21c */ 381 u32 fmfp_clfamc; /* FPM CLFAMC 0x220 */ 382 u32 fmfp_clfbmc; /* FPM CLFBMC 0x224 */ 383 u32 fmfp_clfcmc; /* FPM CLFCMC 0x228 */ 384 u32 fmfp_decceh; /* FPM DECCEH 0x22c */ 385 u32 res0230[116]; /* res 0x230 - 0x3ff */ 386 u32 fmfp_ts[128]; /* 0x400: FPM Task Status 0x400 - 0x5ff */ 387 u32 res0600[0x400 - 384]; 388 }; 389 390 struct fman_bmi_regs { 391 u32 fmbm_init; /* BMI Initialization 0x00 */ 392 u32 fmbm_cfg1; /* BMI Configuration 1 0x04 */ 393 u32 fmbm_cfg2; /* BMI Configuration 2 0x08 */ 394 u32 res000c[5]; /* 0x0c - 0x1f */ 395 u32 fmbm_ievr; /* Interrupt Event Register 0x20 */ 396 u32 fmbm_ier; /* Interrupt Enable Register 0x24 */ 397 u32 fmbm_ifr; /* Interrupt Force Register 0x28 */ 398 u32 res002c[5]; /* 0x2c - 0x3f */ 399 u32 fmbm_arb[8]; /* BMI Arbitration 0x40 - 0x5f */ 400 u32 res0060[12]; /* 0x60 - 0x8f */ 401 u32 fmbm_dtc[3]; /* Debug Trap Counter 0x90 - 0x9b */ 402 u32 res009c; /* 0x9c */ 403 u32 fmbm_dcv[3][4]; /* Debug Compare val 0xa0-0xcf */ 404 u32 fmbm_dcm[3][4]; /* Debug Compare Mask 0xd0-0xff */ 405 u32 fmbm_gde; /* BMI Global Debug Enable 0x100 */ 406 u32 fmbm_pp[63]; /* BMI Port Parameters 0x104 - 0x1ff */ 407 u32 res0200; /* 0x200 */ 408 u32 fmbm_pfs[63]; /* BMI Port FIFO Size 0x204 - 0x2ff */ 409 u32 res0300; /* 0x300 */ 410 u32 fmbm_spliodn[63]; /* Port Partition ID 0x304 - 0x3ff */ 411 }; 412 413 struct fman_qmi_regs { 414 u32 fmqm_gc; /* General Configuration Register 0x00 */ 415 u32 res0004; /* 0x04 */ 416 u32 fmqm_eie; /* Error Interrupt Event Register 0x08 */ 417 u32 fmqm_eien; /* Error Interrupt Enable Register 0x0c */ 418 u32 fmqm_eif; /* Error Interrupt Force Register 0x10 */ 419 u32 fmqm_ie; /* Interrupt Event Register 0x14 */ 420 u32 fmqm_ien; /* Interrupt Enable Register 0x18 */ 421 u32 fmqm_if; /* Interrupt Force Register 0x1c */ 422 u32 fmqm_gs; /* Global Status Register 0x20 */ 423 u32 fmqm_ts; /* Task Status Register 0x24 */ 424 u32 fmqm_etfc; /* Enqueue Total Frame Counter 0x28 */ 425 u32 fmqm_dtfc; /* Dequeue Total Frame Counter 0x2c */ 426 u32 fmqm_dc0; /* Dequeue Counter 0 0x30 */ 427 u32 fmqm_dc1; /* Dequeue Counter 1 0x34 */ 428 u32 fmqm_dc2; /* Dequeue Counter 2 0x38 */ 429 u32 fmqm_dc3; /* Dequeue Counter 3 0x3c */ 430 u32 fmqm_dfdc; /* Dequeue FQID from Default Counter 0x40 */ 431 u32 fmqm_dfcc; /* Dequeue FQID from Context Counter 0x44 */ 432 u32 fmqm_dffc; /* Dequeue FQID from FD Counter 0x48 */ 433 u32 fmqm_dcc; /* Dequeue Confirm Counter 0x4c */ 434 u32 res0050[7]; /* 0x50 - 0x6b */ 435 u32 fmqm_tapc; /* Tnum Aging Period Control 0x6c */ 436 u32 fmqm_dmcvc; /* Dequeue MAC Command Valid Counter 0x70 */ 437 u32 fmqm_difdcc; /* Dequeue Invalid FD Command Counter 0x74 */ 438 u32 fmqm_da1v; /* Dequeue A1 Valid Counter 0x78 */ 439 u32 res007c; /* 0x7c */ 440 u32 fmqm_dtc; /* 0x80 Debug Trap Counter 0x80 */ 441 u32 fmqm_efddd; /* 0x84 Enqueue Frame desc Dynamic dbg 0x84 */ 442 u32 res0088[2]; /* 0x88 - 0x8f */ 443 struct { 444 u32 fmqm_dtcfg1; /* 0x90 dbg trap cfg 1 Register 0x00 */ 445 u32 fmqm_dtval1; /* Debug Trap Value 1 Register 0x04 */ 446 u32 fmqm_dtm1; /* Debug Trap Mask 1 Register 0x08 */ 447 u32 fmqm_dtc1; /* Debug Trap Counter 1 Register 0x0c */ 448 u32 fmqm_dtcfg2; /* dbg Trap cfg 2 Register 0x10 */ 449 u32 fmqm_dtval2; /* Debug Trap Value 2 Register 0x14 */ 450 u32 fmqm_dtm2; /* Debug Trap Mask 2 Register 0x18 */ 451 u32 res001c; /* 0x1c */ 452 } dbg_traps[3]; /* 0x90 - 0xef */ 453 u8 res00f0[0x400 - 0xf0]; /* 0xf0 - 0x3ff */ 454 }; 455 456 struct fman_dma_regs { 457 u32 fmdmsr; /* FM DMA status register 0x00 */ 458 u32 fmdmmr; /* FM DMA mode register 0x04 */ 459 u32 fmdmtr; /* FM DMA bus threshold register 0x08 */ 460 u32 fmdmhy; /* FM DMA bus hysteresis register 0x0c */ 461 u32 fmdmsetr; /* FM DMA SOS emergency Threshold Register 0x10 */ 462 u32 fmdmtah; /* FM DMA transfer bus address high reg 0x14 */ 463 u32 fmdmtal; /* FM DMA transfer bus address low reg 0x18 */ 464 u32 fmdmtcid; /* FM DMA transfer bus communication ID reg 0x1c */ 465 u32 fmdmra; /* FM DMA bus internal ram address register 0x20 */ 466 u32 fmdmrd; /* FM DMA bus internal ram data register 0x24 */ 467 u32 fmdmwcr; /* FM DMA CAM watchdog counter value 0x28 */ 468 u32 fmdmebcr; /* FM DMA CAM base in MURAM register 0x2c */ 469 u32 fmdmccqdr; /* FM DMA CAM and CMD Queue Debug reg 0x30 */ 470 u32 fmdmccqvr1; /* FM DMA CAM and CMD Queue Value reg #1 0x34 */ 471 u32 fmdmccqvr2; /* FM DMA CAM and CMD Queue Value reg #2 0x38 */ 472 u32 fmdmcqvr3; /* FM DMA CMD Queue Value register #3 0x3c */ 473 u32 fmdmcqvr4; /* FM DMA CMD Queue Value register #4 0x40 */ 474 u32 fmdmcqvr5; /* FM DMA CMD Queue Value register #5 0x44 */ 475 u32 fmdmsefrc; /* FM DMA Semaphore Entry Full Reject Cntr 0x48 */ 476 u32 fmdmsqfrc; /* FM DMA Semaphore Queue Full Reject Cntr 0x4c */ 477 u32 fmdmssrc; /* FM DMA Semaphore SYNC Reject Counter 0x50 */ 478 u32 fmdmdcr; /* FM DMA Debug Counter 0x54 */ 479 u32 fmdmemsr; /* FM DMA Emergency Smoother Register 0x58 */ 480 u32 res005c; /* 0x5c */ 481 u32 fmdmplr[FMAN_LIODN_TBL / 2]; /* DMA LIODN regs 0x60-0xdf */ 482 u32 res00e0[0x400 - 56]; 483 }; 484 485 struct fman_hwp_regs { 486 u32 res0000[0x844 / 4]; /* 0x000..0x843 */ 487 u32 fmprrpimac; /* FM Parser Internal memory access control */ 488 u32 res[(0x1000 - 0x848) / 4]; /* 0x848..0xFFF */ 489 }; 490 491 /* Structure that holds current FMan state. 492 * Used for saving run time information. 493 */ 494 struct fman_state_struct { 495 u8 fm_id; 496 u16 fm_clk_freq; 497 struct fman_rev_info rev_info; 498 bool enabled_time_stamp; 499 u8 count1_micro_bit; 500 u8 total_num_of_tasks; 501 u8 accumulated_num_of_tasks; 502 u32 accumulated_fifo_size; 503 u8 accumulated_num_of_open_dmas; 504 u8 accumulated_num_of_deq_tnums; 505 u32 exceptions; 506 u32 extra_fifo_pool_size; 507 u8 extra_tasks_pool_size; 508 u8 extra_open_dmas_pool_size; 509 u16 port_mfl[MAX_NUM_OF_MACS]; 510 u16 mac_mfl[MAX_NUM_OF_MACS]; 511 512 /* SOC specific */ 513 u32 fm_iram_size; 514 /* DMA */ 515 u32 dma_thresh_max_commq; 516 u32 dma_thresh_max_buf; 517 u32 max_num_of_open_dmas; 518 /* QMI */ 519 u32 qmi_max_num_of_tnums; 520 u32 qmi_def_tnums_thresh; 521 /* BMI */ 522 u32 bmi_max_num_of_tasks; 523 u32 bmi_max_fifo_size; 524 /* General */ 525 u32 fm_port_num_of_cg; 526 u32 num_of_rx_ports; 527 u32 total_fifo_size; 528 529 u32 qman_channel_base; 530 u32 num_of_qman_channels; 531 532 struct resource *res; 533 }; 534 535 /* Structure that holds FMan initial configuration */ 536 struct fman_cfg { 537 u8 disp_limit_tsh; 538 u8 prs_disp_tsh; 539 u8 plcr_disp_tsh; 540 u8 kg_disp_tsh; 541 u8 bmi_disp_tsh; 542 u8 qmi_enq_disp_tsh; 543 u8 qmi_deq_disp_tsh; 544 u8 fm_ctl1_disp_tsh; 545 u8 fm_ctl2_disp_tsh; 546 int dma_cache_override; 547 enum fman_dma_aid_mode dma_aid_mode; 548 u32 dma_axi_dbg_num_of_beats; 549 u32 dma_cam_num_of_entries; 550 u32 dma_watchdog; 551 u8 dma_comm_qtsh_asrt_emer; 552 u32 dma_write_buf_tsh_asrt_emer; 553 u32 dma_read_buf_tsh_asrt_emer; 554 u8 dma_comm_qtsh_clr_emer; 555 u32 dma_write_buf_tsh_clr_emer; 556 u32 dma_read_buf_tsh_clr_emer; 557 u32 dma_sos_emergency; 558 int dma_dbg_cnt_mode; 559 int catastrophic_err; 560 int dma_err; 561 u32 exceptions; 562 u16 clk_freq; 563 u32 cam_base_addr; 564 u32 fifo_base_addr; 565 u32 total_fifo_size; 566 u32 total_num_of_tasks; 567 u32 qmi_def_tnums_thresh; 568 }; 569 570 #ifdef CONFIG_DPAA_ERRATUM_A050385 571 static bool fman_has_err_a050385; 572 #endif 573 574 static irqreturn_t fman_exceptions(struct fman *fman, 575 enum fman_exceptions exception) 576 { 577 dev_dbg(fman->dev, "%s: FMan[%d] exception %d\n", 578 __func__, fman->state->fm_id, exception); 579 580 return IRQ_HANDLED; 581 } 582 583 static irqreturn_t fman_bus_error(struct fman *fman, u8 __maybe_unused port_id, 584 u64 __maybe_unused addr, 585 u8 __maybe_unused tnum, 586 u16 __maybe_unused liodn) 587 { 588 dev_dbg(fman->dev, "%s: FMan[%d] bus error: port_id[%d]\n", 589 __func__, fman->state->fm_id, port_id); 590 591 return IRQ_HANDLED; 592 } 593 594 static inline irqreturn_t call_mac_isr(struct fman *fman, u8 id) 595 { 596 if (fman->intr_mng[id].isr_cb) { 597 fman->intr_mng[id].isr_cb(fman->intr_mng[id].src_handle); 598 599 return IRQ_HANDLED; 600 } 601 602 return IRQ_NONE; 603 } 604 605 static inline u8 hw_port_id_to_sw_port_id(u8 major, u8 hw_port_id) 606 { 607 u8 sw_port_id = 0; 608 609 if (hw_port_id >= BASE_TX_PORTID) 610 sw_port_id = hw_port_id - BASE_TX_PORTID; 611 else if (hw_port_id >= BASE_RX_PORTID) 612 sw_port_id = hw_port_id - BASE_RX_PORTID; 613 else 614 sw_port_id = 0; 615 616 return sw_port_id; 617 } 618 619 static void set_port_order_restoration(struct fman_fpm_regs __iomem *fpm_rg, 620 u8 port_id) 621 { 622 u32 tmp = 0; 623 624 tmp = port_id << FPM_PORT_FM_CTL_PORTID_SHIFT; 625 626 tmp |= FPM_PRT_FM_CTL2 | FPM_PRT_FM_CTL1; 627 628 /* order restoration */ 629 if (port_id % 2) 630 tmp |= FPM_PRT_FM_CTL1 << FPM_PRC_ORA_FM_CTL_SEL_SHIFT; 631 else 632 tmp |= FPM_PRT_FM_CTL2 << FPM_PRC_ORA_FM_CTL_SEL_SHIFT; 633 634 iowrite32be(tmp, &fpm_rg->fmfp_prc); 635 } 636 637 static void set_port_liodn(struct fman *fman, u8 port_id, 638 u32 liodn_base, u32 liodn_ofst) 639 { 640 u32 tmp; 641 642 iowrite32be(liodn_ofst, &fman->bmi_regs->fmbm_spliodn[port_id - 1]); 643 if (!IS_ENABLED(CONFIG_FSL_PAMU)) 644 return; 645 /* set LIODN base for this port */ 646 tmp = ioread32be(&fman->dma_regs->fmdmplr[port_id / 2]); 647 if (port_id % 2) { 648 tmp &= ~DMA_LIODN_BASE_MASK; 649 tmp |= liodn_base; 650 } else { 651 tmp &= ~(DMA_LIODN_BASE_MASK << DMA_LIODN_SHIFT); 652 tmp |= liodn_base << DMA_LIODN_SHIFT; 653 } 654 iowrite32be(tmp, &fman->dma_regs->fmdmplr[port_id / 2]); 655 } 656 657 static void enable_rams_ecc(struct fman_fpm_regs __iomem *fpm_rg) 658 { 659 u32 tmp; 660 661 tmp = ioread32be(&fpm_rg->fm_rcr); 662 if (tmp & FPM_RAM_RAMS_ECC_EN_SRC_SEL) 663 iowrite32be(tmp | FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr); 664 else 665 iowrite32be(tmp | FPM_RAM_RAMS_ECC_EN | 666 FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr); 667 } 668 669 static void disable_rams_ecc(struct fman_fpm_regs __iomem *fpm_rg) 670 { 671 u32 tmp; 672 673 tmp = ioread32be(&fpm_rg->fm_rcr); 674 if (tmp & FPM_RAM_RAMS_ECC_EN_SRC_SEL) 675 iowrite32be(tmp & ~FPM_RAM_IRAM_ECC_EN, &fpm_rg->fm_rcr); 676 else 677 iowrite32be(tmp & ~(FPM_RAM_RAMS_ECC_EN | FPM_RAM_IRAM_ECC_EN), 678 &fpm_rg->fm_rcr); 679 } 680 681 static void fman_defconfig(struct fman_cfg *cfg) 682 { 683 memset(cfg, 0, sizeof(struct fman_cfg)); 684 685 cfg->catastrophic_err = DEFAULT_CATASTROPHIC_ERR; 686 cfg->dma_err = DEFAULT_DMA_ERR; 687 cfg->dma_aid_mode = DEFAULT_AID_MODE; 688 cfg->dma_comm_qtsh_clr_emer = DEFAULT_DMA_COMM_Q_LOW; 689 cfg->dma_comm_qtsh_asrt_emer = DEFAULT_DMA_COMM_Q_HIGH; 690 cfg->dma_cache_override = DEFAULT_CACHE_OVERRIDE; 691 cfg->dma_cam_num_of_entries = DEFAULT_DMA_CAM_NUM_OF_ENTRIES; 692 cfg->dma_dbg_cnt_mode = DEFAULT_DMA_DBG_CNT_MODE; 693 cfg->dma_sos_emergency = DEFAULT_DMA_SOS_EMERGENCY; 694 cfg->dma_watchdog = DEFAULT_DMA_WATCHDOG; 695 cfg->disp_limit_tsh = DEFAULT_DISP_LIMIT; 696 cfg->prs_disp_tsh = DEFAULT_PRS_DISP_TH; 697 cfg->plcr_disp_tsh = DEFAULT_PLCR_DISP_TH; 698 cfg->kg_disp_tsh = DEFAULT_KG_DISP_TH; 699 cfg->bmi_disp_tsh = DEFAULT_BMI_DISP_TH; 700 cfg->qmi_enq_disp_tsh = DEFAULT_QMI_ENQ_DISP_TH; 701 cfg->qmi_deq_disp_tsh = DEFAULT_QMI_DEQ_DISP_TH; 702 cfg->fm_ctl1_disp_tsh = DEFAULT_FM_CTL1_DISP_TH; 703 cfg->fm_ctl2_disp_tsh = DEFAULT_FM_CTL2_DISP_TH; 704 } 705 706 static int dma_init(struct fman *fman) 707 { 708 struct fman_dma_regs __iomem *dma_rg = fman->dma_regs; 709 struct fman_cfg *cfg = fman->cfg; 710 u32 tmp_reg; 711 712 /* Init DMA Registers */ 713 714 /* clear status reg events */ 715 tmp_reg = (DMA_STATUS_BUS_ERR | DMA_STATUS_READ_ECC | 716 DMA_STATUS_SYSTEM_WRITE_ECC | DMA_STATUS_FM_WRITE_ECC); 717 iowrite32be(ioread32be(&dma_rg->fmdmsr) | tmp_reg, &dma_rg->fmdmsr); 718 719 /* configure mode register */ 720 tmp_reg = 0; 721 tmp_reg |= cfg->dma_cache_override << DMA_MODE_CACHE_OR_SHIFT; 722 if (cfg->exceptions & EX_DMA_BUS_ERROR) 723 tmp_reg |= DMA_MODE_BER; 724 if ((cfg->exceptions & EX_DMA_SYSTEM_WRITE_ECC) | 725 (cfg->exceptions & EX_DMA_READ_ECC) | 726 (cfg->exceptions & EX_DMA_FM_WRITE_ECC)) 727 tmp_reg |= DMA_MODE_ECC; 728 if (cfg->dma_axi_dbg_num_of_beats) 729 tmp_reg |= (DMA_MODE_AXI_DBG_MASK & 730 ((cfg->dma_axi_dbg_num_of_beats - 1) 731 << DMA_MODE_AXI_DBG_SHIFT)); 732 733 tmp_reg |= (((cfg->dma_cam_num_of_entries / DMA_CAM_UNITS) - 1) & 734 DMA_MODE_CEN_MASK) << DMA_MODE_CEN_SHIFT; 735 tmp_reg |= DMA_MODE_SECURE_PROT; 736 tmp_reg |= cfg->dma_dbg_cnt_mode << DMA_MODE_DBG_SHIFT; 737 tmp_reg |= cfg->dma_aid_mode << DMA_MODE_AID_MODE_SHIFT; 738 739 iowrite32be(tmp_reg, &dma_rg->fmdmmr); 740 741 /* configure thresholds register */ 742 tmp_reg = ((u32)cfg->dma_comm_qtsh_asrt_emer << 743 DMA_THRESH_COMMQ_SHIFT); 744 tmp_reg |= (cfg->dma_read_buf_tsh_asrt_emer & 745 DMA_THRESH_READ_INT_BUF_MASK) << DMA_THRESH_READ_INT_BUF_SHIFT; 746 tmp_reg |= cfg->dma_write_buf_tsh_asrt_emer & 747 DMA_THRESH_WRITE_INT_BUF_MASK; 748 749 iowrite32be(tmp_reg, &dma_rg->fmdmtr); 750 751 /* configure hysteresis register */ 752 tmp_reg = ((u32)cfg->dma_comm_qtsh_clr_emer << 753 DMA_THRESH_COMMQ_SHIFT); 754 tmp_reg |= (cfg->dma_read_buf_tsh_clr_emer & 755 DMA_THRESH_READ_INT_BUF_MASK) << DMA_THRESH_READ_INT_BUF_SHIFT; 756 tmp_reg |= cfg->dma_write_buf_tsh_clr_emer & 757 DMA_THRESH_WRITE_INT_BUF_MASK; 758 759 iowrite32be(tmp_reg, &dma_rg->fmdmhy); 760 761 /* configure emergency threshold */ 762 iowrite32be(cfg->dma_sos_emergency, &dma_rg->fmdmsetr); 763 764 /* configure Watchdog */ 765 iowrite32be((cfg->dma_watchdog * cfg->clk_freq), &dma_rg->fmdmwcr); 766 767 iowrite32be(cfg->cam_base_addr, &dma_rg->fmdmebcr); 768 769 /* Allocate MURAM for CAM */ 770 fman->cam_size = 771 (u32)(fman->cfg->dma_cam_num_of_entries * DMA_CAM_SIZEOF_ENTRY); 772 fman->cam_offset = fman_muram_alloc(fman->muram, fman->cam_size); 773 if (IS_ERR_VALUE(fman->cam_offset)) { 774 dev_err(fman->dev, "%s: MURAM alloc for DMA CAM failed\n", 775 __func__); 776 return -ENOMEM; 777 } 778 779 if (fman->state->rev_info.major == 2) { 780 u32 __iomem *cam_base_addr; 781 782 fman_muram_free_mem(fman->muram, fman->cam_offset, 783 fman->cam_size); 784 785 fman->cam_size = fman->cfg->dma_cam_num_of_entries * 72 + 128; 786 fman->cam_offset = fman_muram_alloc(fman->muram, 787 fman->cam_size); 788 if (IS_ERR_VALUE(fman->cam_offset)) { 789 dev_err(fman->dev, "%s: MURAM alloc for DMA CAM failed\n", 790 __func__); 791 return -ENOMEM; 792 } 793 794 if (fman->cfg->dma_cam_num_of_entries % 8 || 795 fman->cfg->dma_cam_num_of_entries > 32) { 796 dev_err(fman->dev, "%s: wrong dma_cam_num_of_entries\n", 797 __func__); 798 return -EINVAL; 799 } 800 801 cam_base_addr = (u32 __iomem *) 802 fman_muram_offset_to_vbase(fman->muram, 803 fman->cam_offset); 804 iowrite32be(~((1 << 805 (32 - fman->cfg->dma_cam_num_of_entries)) - 1), 806 cam_base_addr); 807 } 808 809 fman->cfg->cam_base_addr = fman->cam_offset; 810 811 return 0; 812 } 813 814 static void fpm_init(struct fman_fpm_regs __iomem *fpm_rg, struct fman_cfg *cfg) 815 { 816 u32 tmp_reg; 817 int i; 818 819 /* Init FPM Registers */ 820 821 tmp_reg = (u32)(cfg->disp_limit_tsh << FPM_DISP_LIMIT_SHIFT); 822 iowrite32be(tmp_reg, &fpm_rg->fmfp_mxd); 823 824 tmp_reg = (((u32)cfg->prs_disp_tsh << FPM_THR1_PRS_SHIFT) | 825 ((u32)cfg->kg_disp_tsh << FPM_THR1_KG_SHIFT) | 826 ((u32)cfg->plcr_disp_tsh << FPM_THR1_PLCR_SHIFT) | 827 ((u32)cfg->bmi_disp_tsh << FPM_THR1_BMI_SHIFT)); 828 iowrite32be(tmp_reg, &fpm_rg->fmfp_dist1); 829 830 tmp_reg = 831 (((u32)cfg->qmi_enq_disp_tsh << FPM_THR2_QMI_ENQ_SHIFT) | 832 ((u32)cfg->qmi_deq_disp_tsh << FPM_THR2_QMI_DEQ_SHIFT) | 833 ((u32)cfg->fm_ctl1_disp_tsh << FPM_THR2_FM_CTL1_SHIFT) | 834 ((u32)cfg->fm_ctl2_disp_tsh << FPM_THR2_FM_CTL2_SHIFT)); 835 iowrite32be(tmp_reg, &fpm_rg->fmfp_dist2); 836 837 /* define exceptions and error behavior */ 838 tmp_reg = 0; 839 /* Clear events */ 840 tmp_reg |= (FPM_EV_MASK_STALL | FPM_EV_MASK_DOUBLE_ECC | 841 FPM_EV_MASK_SINGLE_ECC); 842 /* enable interrupts */ 843 if (cfg->exceptions & EX_FPM_STALL_ON_TASKS) 844 tmp_reg |= FPM_EV_MASK_STALL_EN; 845 if (cfg->exceptions & EX_FPM_SINGLE_ECC) 846 tmp_reg |= FPM_EV_MASK_SINGLE_ECC_EN; 847 if (cfg->exceptions & EX_FPM_DOUBLE_ECC) 848 tmp_reg |= FPM_EV_MASK_DOUBLE_ECC_EN; 849 tmp_reg |= (cfg->catastrophic_err << FPM_EV_MASK_CAT_ERR_SHIFT); 850 tmp_reg |= (cfg->dma_err << FPM_EV_MASK_DMA_ERR_SHIFT); 851 /* FMan is not halted upon external halt activation */ 852 tmp_reg |= FPM_EV_MASK_EXTERNAL_HALT; 853 /* Man is not halted upon Unrecoverable ECC error behavior */ 854 tmp_reg |= FPM_EV_MASK_ECC_ERR_HALT; 855 iowrite32be(tmp_reg, &fpm_rg->fmfp_ee); 856 857 /* clear all fmCtls event registers */ 858 for (i = 0; i < FM_NUM_OF_FMAN_CTRL_EVENT_REGS; i++) 859 iowrite32be(0xFFFFFFFF, &fpm_rg->fmfp_cev[i]); 860 861 /* RAM ECC - enable and clear events */ 862 /* first we need to clear all parser memory, 863 * as it is uninitialized and may cause ECC errors 864 */ 865 /* event bits */ 866 tmp_reg = (FPM_RAM_MURAM_ECC | FPM_RAM_IRAM_ECC); 867 868 iowrite32be(tmp_reg, &fpm_rg->fm_rcr); 869 870 tmp_reg = 0; 871 if (cfg->exceptions & EX_IRAM_ECC) { 872 tmp_reg |= FPM_IRAM_ECC_ERR_EX_EN; 873 enable_rams_ecc(fpm_rg); 874 } 875 if (cfg->exceptions & EX_MURAM_ECC) { 876 tmp_reg |= FPM_MURAM_ECC_ERR_EX_EN; 877 enable_rams_ecc(fpm_rg); 878 } 879 iowrite32be(tmp_reg, &fpm_rg->fm_rie); 880 } 881 882 static void bmi_init(struct fman_bmi_regs __iomem *bmi_rg, 883 struct fman_cfg *cfg) 884 { 885 u32 tmp_reg; 886 887 /* Init BMI Registers */ 888 889 /* define common resources */ 890 tmp_reg = cfg->fifo_base_addr; 891 tmp_reg = tmp_reg / BMI_FIFO_ALIGN; 892 893 tmp_reg |= ((cfg->total_fifo_size / FMAN_BMI_FIFO_UNITS - 1) << 894 BMI_CFG1_FIFO_SIZE_SHIFT); 895 iowrite32be(tmp_reg, &bmi_rg->fmbm_cfg1); 896 897 tmp_reg = ((cfg->total_num_of_tasks - 1) & BMI_CFG2_TASKS_MASK) << 898 BMI_CFG2_TASKS_SHIFT; 899 /* num of DMA's will be dynamically updated when each port is set */ 900 iowrite32be(tmp_reg, &bmi_rg->fmbm_cfg2); 901 902 /* define unmaskable exceptions, enable and clear events */ 903 tmp_reg = 0; 904 iowrite32be(BMI_ERR_INTR_EN_LIST_RAM_ECC | 905 BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC | 906 BMI_ERR_INTR_EN_STATISTICS_RAM_ECC | 907 BMI_ERR_INTR_EN_DISPATCH_RAM_ECC, &bmi_rg->fmbm_ievr); 908 909 if (cfg->exceptions & EX_BMI_LIST_RAM_ECC) 910 tmp_reg |= BMI_ERR_INTR_EN_LIST_RAM_ECC; 911 if (cfg->exceptions & EX_BMI_STORAGE_PROFILE_ECC) 912 tmp_reg |= BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC; 913 if (cfg->exceptions & EX_BMI_STATISTICS_RAM_ECC) 914 tmp_reg |= BMI_ERR_INTR_EN_STATISTICS_RAM_ECC; 915 if (cfg->exceptions & EX_BMI_DISPATCH_RAM_ECC) 916 tmp_reg |= BMI_ERR_INTR_EN_DISPATCH_RAM_ECC; 917 iowrite32be(tmp_reg, &bmi_rg->fmbm_ier); 918 } 919 920 static void qmi_init(struct fman_qmi_regs __iomem *qmi_rg, 921 struct fman_cfg *cfg) 922 { 923 u32 tmp_reg; 924 925 /* Init QMI Registers */ 926 927 /* Clear error interrupt events */ 928 929 iowrite32be(QMI_ERR_INTR_EN_DOUBLE_ECC | QMI_ERR_INTR_EN_DEQ_FROM_DEF, 930 &qmi_rg->fmqm_eie); 931 tmp_reg = 0; 932 if (cfg->exceptions & EX_QMI_DEQ_FROM_UNKNOWN_PORTID) 933 tmp_reg |= QMI_ERR_INTR_EN_DEQ_FROM_DEF; 934 if (cfg->exceptions & EX_QMI_DOUBLE_ECC) 935 tmp_reg |= QMI_ERR_INTR_EN_DOUBLE_ECC; 936 /* enable events */ 937 iowrite32be(tmp_reg, &qmi_rg->fmqm_eien); 938 939 tmp_reg = 0; 940 /* Clear interrupt events */ 941 iowrite32be(QMI_INTR_EN_SINGLE_ECC, &qmi_rg->fmqm_ie); 942 if (cfg->exceptions & EX_QMI_SINGLE_ECC) 943 tmp_reg |= QMI_INTR_EN_SINGLE_ECC; 944 /* enable events */ 945 iowrite32be(tmp_reg, &qmi_rg->fmqm_ien); 946 } 947 948 static void hwp_init(struct fman_hwp_regs __iomem *hwp_rg) 949 { 950 /* enable HW Parser */ 951 iowrite32be(HWP_RPIMAC_PEN, &hwp_rg->fmprrpimac); 952 } 953 954 static int enable(struct fman *fman, struct fman_cfg *cfg) 955 { 956 u32 cfg_reg = 0; 957 958 /* Enable all modules */ 959 960 /* clear&enable global counters - calculate reg and save for later, 961 * because it's the same reg for QMI enable 962 */ 963 cfg_reg = QMI_CFG_EN_COUNTERS; 964 965 /* Set enqueue and dequeue thresholds */ 966 cfg_reg |= (cfg->qmi_def_tnums_thresh << 8) | cfg->qmi_def_tnums_thresh; 967 968 iowrite32be(BMI_INIT_START, &fman->bmi_regs->fmbm_init); 969 iowrite32be(cfg_reg | QMI_CFG_ENQ_EN | QMI_CFG_DEQ_EN, 970 &fman->qmi_regs->fmqm_gc); 971 972 return 0; 973 } 974 975 static int set_exception(struct fman *fman, 976 enum fman_exceptions exception, bool enable) 977 { 978 u32 tmp; 979 980 switch (exception) { 981 case FMAN_EX_DMA_BUS_ERROR: 982 tmp = ioread32be(&fman->dma_regs->fmdmmr); 983 if (enable) 984 tmp |= DMA_MODE_BER; 985 else 986 tmp &= ~DMA_MODE_BER; 987 /* disable bus error */ 988 iowrite32be(tmp, &fman->dma_regs->fmdmmr); 989 break; 990 case FMAN_EX_DMA_READ_ECC: 991 case FMAN_EX_DMA_SYSTEM_WRITE_ECC: 992 case FMAN_EX_DMA_FM_WRITE_ECC: 993 tmp = ioread32be(&fman->dma_regs->fmdmmr); 994 if (enable) 995 tmp |= DMA_MODE_ECC; 996 else 997 tmp &= ~DMA_MODE_ECC; 998 iowrite32be(tmp, &fman->dma_regs->fmdmmr); 999 break; 1000 case FMAN_EX_FPM_STALL_ON_TASKS: 1001 tmp = ioread32be(&fman->fpm_regs->fmfp_ee); 1002 if (enable) 1003 tmp |= FPM_EV_MASK_STALL_EN; 1004 else 1005 tmp &= ~FPM_EV_MASK_STALL_EN; 1006 iowrite32be(tmp, &fman->fpm_regs->fmfp_ee); 1007 break; 1008 case FMAN_EX_FPM_SINGLE_ECC: 1009 tmp = ioread32be(&fman->fpm_regs->fmfp_ee); 1010 if (enable) 1011 tmp |= FPM_EV_MASK_SINGLE_ECC_EN; 1012 else 1013 tmp &= ~FPM_EV_MASK_SINGLE_ECC_EN; 1014 iowrite32be(tmp, &fman->fpm_regs->fmfp_ee); 1015 break; 1016 case FMAN_EX_FPM_DOUBLE_ECC: 1017 tmp = ioread32be(&fman->fpm_regs->fmfp_ee); 1018 if (enable) 1019 tmp |= FPM_EV_MASK_DOUBLE_ECC_EN; 1020 else 1021 tmp &= ~FPM_EV_MASK_DOUBLE_ECC_EN; 1022 iowrite32be(tmp, &fman->fpm_regs->fmfp_ee); 1023 break; 1024 case FMAN_EX_QMI_SINGLE_ECC: 1025 tmp = ioread32be(&fman->qmi_regs->fmqm_ien); 1026 if (enable) 1027 tmp |= QMI_INTR_EN_SINGLE_ECC; 1028 else 1029 tmp &= ~QMI_INTR_EN_SINGLE_ECC; 1030 iowrite32be(tmp, &fman->qmi_regs->fmqm_ien); 1031 break; 1032 case FMAN_EX_QMI_DOUBLE_ECC: 1033 tmp = ioread32be(&fman->qmi_regs->fmqm_eien); 1034 if (enable) 1035 tmp |= QMI_ERR_INTR_EN_DOUBLE_ECC; 1036 else 1037 tmp &= ~QMI_ERR_INTR_EN_DOUBLE_ECC; 1038 iowrite32be(tmp, &fman->qmi_regs->fmqm_eien); 1039 break; 1040 case FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID: 1041 tmp = ioread32be(&fman->qmi_regs->fmqm_eien); 1042 if (enable) 1043 tmp |= QMI_ERR_INTR_EN_DEQ_FROM_DEF; 1044 else 1045 tmp &= ~QMI_ERR_INTR_EN_DEQ_FROM_DEF; 1046 iowrite32be(tmp, &fman->qmi_regs->fmqm_eien); 1047 break; 1048 case FMAN_EX_BMI_LIST_RAM_ECC: 1049 tmp = ioread32be(&fman->bmi_regs->fmbm_ier); 1050 if (enable) 1051 tmp |= BMI_ERR_INTR_EN_LIST_RAM_ECC; 1052 else 1053 tmp &= ~BMI_ERR_INTR_EN_LIST_RAM_ECC; 1054 iowrite32be(tmp, &fman->bmi_regs->fmbm_ier); 1055 break; 1056 case FMAN_EX_BMI_STORAGE_PROFILE_ECC: 1057 tmp = ioread32be(&fman->bmi_regs->fmbm_ier); 1058 if (enable) 1059 tmp |= BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC; 1060 else 1061 tmp &= ~BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC; 1062 iowrite32be(tmp, &fman->bmi_regs->fmbm_ier); 1063 break; 1064 case FMAN_EX_BMI_STATISTICS_RAM_ECC: 1065 tmp = ioread32be(&fman->bmi_regs->fmbm_ier); 1066 if (enable) 1067 tmp |= BMI_ERR_INTR_EN_STATISTICS_RAM_ECC; 1068 else 1069 tmp &= ~BMI_ERR_INTR_EN_STATISTICS_RAM_ECC; 1070 iowrite32be(tmp, &fman->bmi_regs->fmbm_ier); 1071 break; 1072 case FMAN_EX_BMI_DISPATCH_RAM_ECC: 1073 tmp = ioread32be(&fman->bmi_regs->fmbm_ier); 1074 if (enable) 1075 tmp |= BMI_ERR_INTR_EN_DISPATCH_RAM_ECC; 1076 else 1077 tmp &= ~BMI_ERR_INTR_EN_DISPATCH_RAM_ECC; 1078 iowrite32be(tmp, &fman->bmi_regs->fmbm_ier); 1079 break; 1080 case FMAN_EX_IRAM_ECC: 1081 tmp = ioread32be(&fman->fpm_regs->fm_rie); 1082 if (enable) { 1083 /* enable ECC if not enabled */ 1084 enable_rams_ecc(fman->fpm_regs); 1085 /* enable ECC interrupts */ 1086 tmp |= FPM_IRAM_ECC_ERR_EX_EN; 1087 } else { 1088 /* ECC mechanism may be disabled, 1089 * depending on driver status 1090 */ 1091 disable_rams_ecc(fman->fpm_regs); 1092 tmp &= ~FPM_IRAM_ECC_ERR_EX_EN; 1093 } 1094 iowrite32be(tmp, &fman->fpm_regs->fm_rie); 1095 break; 1096 case FMAN_EX_MURAM_ECC: 1097 tmp = ioread32be(&fman->fpm_regs->fm_rie); 1098 if (enable) { 1099 /* enable ECC if not enabled */ 1100 enable_rams_ecc(fman->fpm_regs); 1101 /* enable ECC interrupts */ 1102 tmp |= FPM_MURAM_ECC_ERR_EX_EN; 1103 } else { 1104 /* ECC mechanism may be disabled, 1105 * depending on driver status 1106 */ 1107 disable_rams_ecc(fman->fpm_regs); 1108 tmp &= ~FPM_MURAM_ECC_ERR_EX_EN; 1109 } 1110 iowrite32be(tmp, &fman->fpm_regs->fm_rie); 1111 break; 1112 default: 1113 return -EINVAL; 1114 } 1115 return 0; 1116 } 1117 1118 static void resume(struct fman_fpm_regs __iomem *fpm_rg) 1119 { 1120 u32 tmp; 1121 1122 tmp = ioread32be(&fpm_rg->fmfp_ee); 1123 /* clear tmp_reg event bits in order not to clear standing events */ 1124 tmp &= ~(FPM_EV_MASK_DOUBLE_ECC | 1125 FPM_EV_MASK_STALL | FPM_EV_MASK_SINGLE_ECC); 1126 tmp |= FPM_EV_MASK_RELEASE_FM; 1127 1128 iowrite32be(tmp, &fpm_rg->fmfp_ee); 1129 } 1130 1131 static int fill_soc_specific_params(struct fman_state_struct *state) 1132 { 1133 u8 minor = state->rev_info.minor; 1134 /* P4080 - Major 2 1135 * P2041/P3041/P5020/P5040 - Major 3 1136 * Tx/Bx - Major 6 1137 */ 1138 switch (state->rev_info.major) { 1139 case 3: 1140 state->bmi_max_fifo_size = 160 * 1024; 1141 state->fm_iram_size = 64 * 1024; 1142 state->dma_thresh_max_commq = 31; 1143 state->dma_thresh_max_buf = 127; 1144 state->qmi_max_num_of_tnums = 64; 1145 state->qmi_def_tnums_thresh = 48; 1146 state->bmi_max_num_of_tasks = 128; 1147 state->max_num_of_open_dmas = 32; 1148 state->fm_port_num_of_cg = 256; 1149 state->num_of_rx_ports = 6; 1150 state->total_fifo_size = 136 * 1024; 1151 break; 1152 1153 case 2: 1154 state->bmi_max_fifo_size = 160 * 1024; 1155 state->fm_iram_size = 64 * 1024; 1156 state->dma_thresh_max_commq = 31; 1157 state->dma_thresh_max_buf = 127; 1158 state->qmi_max_num_of_tnums = 64; 1159 state->qmi_def_tnums_thresh = 48; 1160 state->bmi_max_num_of_tasks = 128; 1161 state->max_num_of_open_dmas = 32; 1162 state->fm_port_num_of_cg = 256; 1163 state->num_of_rx_ports = 5; 1164 state->total_fifo_size = 100 * 1024; 1165 break; 1166 1167 case 6: 1168 state->dma_thresh_max_commq = 83; 1169 state->dma_thresh_max_buf = 127; 1170 state->qmi_max_num_of_tnums = 64; 1171 state->qmi_def_tnums_thresh = 32; 1172 state->fm_port_num_of_cg = 256; 1173 1174 /* FManV3L */ 1175 if (minor == 1 || minor == 4) { 1176 state->bmi_max_fifo_size = 192 * 1024; 1177 state->bmi_max_num_of_tasks = 64; 1178 state->max_num_of_open_dmas = 32; 1179 state->num_of_rx_ports = 5; 1180 if (minor == 1) 1181 state->fm_iram_size = 32 * 1024; 1182 else 1183 state->fm_iram_size = 64 * 1024; 1184 state->total_fifo_size = 156 * 1024; 1185 } 1186 /* FManV3H */ 1187 else if (minor == 0 || minor == 2 || minor == 3) { 1188 state->bmi_max_fifo_size = 384 * 1024; 1189 state->fm_iram_size = 64 * 1024; 1190 state->bmi_max_num_of_tasks = 128; 1191 state->max_num_of_open_dmas = 84; 1192 state->num_of_rx_ports = 8; 1193 state->total_fifo_size = 295 * 1024; 1194 } else { 1195 pr_err("Unsupported FManv3 version\n"); 1196 return -EINVAL; 1197 } 1198 1199 break; 1200 default: 1201 pr_err("Unsupported FMan version\n"); 1202 return -EINVAL; 1203 } 1204 1205 return 0; 1206 } 1207 1208 static bool is_init_done(struct fman_cfg *cfg) 1209 { 1210 /* Checks if FMan driver parameters were initialized */ 1211 if (!cfg) 1212 return true; 1213 1214 return false; 1215 } 1216 1217 static void free_init_resources(struct fman *fman) 1218 { 1219 if (fman->cam_offset) 1220 fman_muram_free_mem(fman->muram, fman->cam_offset, 1221 fman->cam_size); 1222 if (fman->fifo_offset) 1223 fman_muram_free_mem(fman->muram, fman->fifo_offset, 1224 fman->fifo_size); 1225 } 1226 1227 static irqreturn_t bmi_err_event(struct fman *fman) 1228 { 1229 u32 event, mask, force; 1230 struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs; 1231 irqreturn_t ret = IRQ_NONE; 1232 1233 event = ioread32be(&bmi_rg->fmbm_ievr); 1234 mask = ioread32be(&bmi_rg->fmbm_ier); 1235 event &= mask; 1236 /* clear the forced events */ 1237 force = ioread32be(&bmi_rg->fmbm_ifr); 1238 if (force & event) 1239 iowrite32be(force & ~event, &bmi_rg->fmbm_ifr); 1240 /* clear the acknowledged events */ 1241 iowrite32be(event, &bmi_rg->fmbm_ievr); 1242 1243 if (event & BMI_ERR_INTR_EN_STORAGE_PROFILE_ECC) 1244 ret = fman->exception_cb(fman, FMAN_EX_BMI_STORAGE_PROFILE_ECC); 1245 if (event & BMI_ERR_INTR_EN_LIST_RAM_ECC) 1246 ret = fman->exception_cb(fman, FMAN_EX_BMI_LIST_RAM_ECC); 1247 if (event & BMI_ERR_INTR_EN_STATISTICS_RAM_ECC) 1248 ret = fman->exception_cb(fman, FMAN_EX_BMI_STATISTICS_RAM_ECC); 1249 if (event & BMI_ERR_INTR_EN_DISPATCH_RAM_ECC) 1250 ret = fman->exception_cb(fman, FMAN_EX_BMI_DISPATCH_RAM_ECC); 1251 1252 return ret; 1253 } 1254 1255 static irqreturn_t qmi_err_event(struct fman *fman) 1256 { 1257 u32 event, mask, force; 1258 struct fman_qmi_regs __iomem *qmi_rg = fman->qmi_regs; 1259 irqreturn_t ret = IRQ_NONE; 1260 1261 event = ioread32be(&qmi_rg->fmqm_eie); 1262 mask = ioread32be(&qmi_rg->fmqm_eien); 1263 event &= mask; 1264 1265 /* clear the forced events */ 1266 force = ioread32be(&qmi_rg->fmqm_eif); 1267 if (force & event) 1268 iowrite32be(force & ~event, &qmi_rg->fmqm_eif); 1269 /* clear the acknowledged events */ 1270 iowrite32be(event, &qmi_rg->fmqm_eie); 1271 1272 if (event & QMI_ERR_INTR_EN_DOUBLE_ECC) 1273 ret = fman->exception_cb(fman, FMAN_EX_QMI_DOUBLE_ECC); 1274 if (event & QMI_ERR_INTR_EN_DEQ_FROM_DEF) 1275 ret = fman->exception_cb(fman, 1276 FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID); 1277 1278 return ret; 1279 } 1280 1281 static irqreturn_t dma_err_event(struct fman *fman) 1282 { 1283 u32 status, mask, com_id; 1284 u8 tnum, port_id, relative_port_id; 1285 u16 liodn; 1286 struct fman_dma_regs __iomem *dma_rg = fman->dma_regs; 1287 irqreturn_t ret = IRQ_NONE; 1288 1289 status = ioread32be(&dma_rg->fmdmsr); 1290 mask = ioread32be(&dma_rg->fmdmmr); 1291 1292 /* clear DMA_STATUS_BUS_ERR if mask has no DMA_MODE_BER */ 1293 if ((mask & DMA_MODE_BER) != DMA_MODE_BER) 1294 status &= ~DMA_STATUS_BUS_ERR; 1295 1296 /* clear relevant bits if mask has no DMA_MODE_ECC */ 1297 if ((mask & DMA_MODE_ECC) != DMA_MODE_ECC) 1298 status &= ~(DMA_STATUS_FM_SPDAT_ECC | 1299 DMA_STATUS_READ_ECC | 1300 DMA_STATUS_SYSTEM_WRITE_ECC | 1301 DMA_STATUS_FM_WRITE_ECC); 1302 1303 /* clear set events */ 1304 iowrite32be(status, &dma_rg->fmdmsr); 1305 1306 if (status & DMA_STATUS_BUS_ERR) { 1307 u64 addr; 1308 1309 addr = (u64)ioread32be(&dma_rg->fmdmtal); 1310 addr |= ((u64)(ioread32be(&dma_rg->fmdmtah)) << 32); 1311 1312 com_id = ioread32be(&dma_rg->fmdmtcid); 1313 port_id = (u8)(((com_id & DMA_TRANSFER_PORTID_MASK) >> 1314 DMA_TRANSFER_PORTID_SHIFT)); 1315 relative_port_id = 1316 hw_port_id_to_sw_port_id(fman->state->rev_info.major, port_id); 1317 tnum = (u8)((com_id & DMA_TRANSFER_TNUM_MASK) >> 1318 DMA_TRANSFER_TNUM_SHIFT); 1319 liodn = (u16)(com_id & DMA_TRANSFER_LIODN_MASK); 1320 ret = fman->bus_error_cb(fman, relative_port_id, addr, tnum, 1321 liodn); 1322 } 1323 if (status & DMA_STATUS_FM_SPDAT_ECC) 1324 ret = fman->exception_cb(fman, FMAN_EX_DMA_SINGLE_PORT_ECC); 1325 if (status & DMA_STATUS_READ_ECC) 1326 ret = fman->exception_cb(fman, FMAN_EX_DMA_READ_ECC); 1327 if (status & DMA_STATUS_SYSTEM_WRITE_ECC) 1328 ret = fman->exception_cb(fman, FMAN_EX_DMA_SYSTEM_WRITE_ECC); 1329 if (status & DMA_STATUS_FM_WRITE_ECC) 1330 ret = fman->exception_cb(fman, FMAN_EX_DMA_FM_WRITE_ECC); 1331 1332 return ret; 1333 } 1334 1335 static irqreturn_t fpm_err_event(struct fman *fman) 1336 { 1337 u32 event; 1338 struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs; 1339 irqreturn_t ret = IRQ_NONE; 1340 1341 event = ioread32be(&fpm_rg->fmfp_ee); 1342 /* clear the all occurred events */ 1343 iowrite32be(event, &fpm_rg->fmfp_ee); 1344 1345 if ((event & FPM_EV_MASK_DOUBLE_ECC) && 1346 (event & FPM_EV_MASK_DOUBLE_ECC_EN)) 1347 ret = fman->exception_cb(fman, FMAN_EX_FPM_DOUBLE_ECC); 1348 if ((event & FPM_EV_MASK_STALL) && (event & FPM_EV_MASK_STALL_EN)) 1349 ret = fman->exception_cb(fman, FMAN_EX_FPM_STALL_ON_TASKS); 1350 if ((event & FPM_EV_MASK_SINGLE_ECC) && 1351 (event & FPM_EV_MASK_SINGLE_ECC_EN)) 1352 ret = fman->exception_cb(fman, FMAN_EX_FPM_SINGLE_ECC); 1353 1354 return ret; 1355 } 1356 1357 static irqreturn_t muram_err_intr(struct fman *fman) 1358 { 1359 u32 event, mask; 1360 struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs; 1361 irqreturn_t ret = IRQ_NONE; 1362 1363 event = ioread32be(&fpm_rg->fm_rcr); 1364 mask = ioread32be(&fpm_rg->fm_rie); 1365 1366 /* clear MURAM event bit (do not clear IRAM event) */ 1367 iowrite32be(event & ~FPM_RAM_IRAM_ECC, &fpm_rg->fm_rcr); 1368 1369 if ((mask & FPM_MURAM_ECC_ERR_EX_EN) && (event & FPM_RAM_MURAM_ECC)) 1370 ret = fman->exception_cb(fman, FMAN_EX_MURAM_ECC); 1371 1372 return ret; 1373 } 1374 1375 static irqreturn_t qmi_event(struct fman *fman) 1376 { 1377 u32 event, mask, force; 1378 struct fman_qmi_regs __iomem *qmi_rg = fman->qmi_regs; 1379 irqreturn_t ret = IRQ_NONE; 1380 1381 event = ioread32be(&qmi_rg->fmqm_ie); 1382 mask = ioread32be(&qmi_rg->fmqm_ien); 1383 event &= mask; 1384 /* clear the forced events */ 1385 force = ioread32be(&qmi_rg->fmqm_if); 1386 if (force & event) 1387 iowrite32be(force & ~event, &qmi_rg->fmqm_if); 1388 /* clear the acknowledged events */ 1389 iowrite32be(event, &qmi_rg->fmqm_ie); 1390 1391 if (event & QMI_INTR_EN_SINGLE_ECC) 1392 ret = fman->exception_cb(fman, FMAN_EX_QMI_SINGLE_ECC); 1393 1394 return ret; 1395 } 1396 1397 static void enable_time_stamp(struct fman *fman) 1398 { 1399 struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs; 1400 u16 fm_clk_freq = fman->state->fm_clk_freq; 1401 u32 tmp, intgr, ts_freq, frac; 1402 1403 ts_freq = (u32)(1 << fman->state->count1_micro_bit); 1404 /* configure timestamp so that bit 8 will count 1 microsecond 1405 * Find effective count rate at TIMESTAMP least significant bits: 1406 * Effective_Count_Rate = 1MHz x 2^8 = 256MHz 1407 * Find frequency ratio between effective count rate and the clock: 1408 * Effective_Count_Rate / CLK e.g. for 600 MHz clock: 1409 * 256/600 = 0.4266666... 1410 */ 1411 1412 intgr = ts_freq / fm_clk_freq; 1413 /* we multiply by 2^16 to keep the fraction of the division 1414 * we do not div back, since we write this value as a fraction 1415 * see spec 1416 */ 1417 1418 frac = ((ts_freq << 16) - (intgr << 16) * fm_clk_freq) / fm_clk_freq; 1419 /* we check remainder of the division in order to round up if not int */ 1420 if (((ts_freq << 16) - (intgr << 16) * fm_clk_freq) % fm_clk_freq) 1421 frac++; 1422 1423 tmp = (intgr << FPM_TS_INT_SHIFT) | (u16)frac; 1424 iowrite32be(tmp, &fpm_rg->fmfp_tsc2); 1425 1426 /* enable timestamp with original clock */ 1427 iowrite32be(FPM_TS_CTL_EN, &fpm_rg->fmfp_tsc1); 1428 fman->state->enabled_time_stamp = true; 1429 } 1430 1431 static int clear_iram(struct fman *fman) 1432 { 1433 struct fman_iram_regs __iomem *iram; 1434 int i, count; 1435 1436 iram = fman->base_addr + IMEM_OFFSET; 1437 1438 /* Enable the auto-increment */ 1439 iowrite32be(IRAM_IADD_AIE, &iram->iadd); 1440 count = 100; 1441 do { 1442 udelay(1); 1443 } while ((ioread32be(&iram->iadd) != IRAM_IADD_AIE) && --count); 1444 if (count == 0) 1445 return -EBUSY; 1446 1447 for (i = 0; i < (fman->state->fm_iram_size / 4); i++) 1448 iowrite32be(0xffffffff, &iram->idata); 1449 1450 iowrite32be(fman->state->fm_iram_size - 4, &iram->iadd); 1451 count = 100; 1452 do { 1453 udelay(1); 1454 } while ((ioread32be(&iram->idata) != 0xffffffff) && --count); 1455 if (count == 0) 1456 return -EBUSY; 1457 1458 return 0; 1459 } 1460 1461 static u32 get_exception_flag(enum fman_exceptions exception) 1462 { 1463 u32 bit_mask; 1464 1465 switch (exception) { 1466 case FMAN_EX_DMA_BUS_ERROR: 1467 bit_mask = EX_DMA_BUS_ERROR; 1468 break; 1469 case FMAN_EX_DMA_SINGLE_PORT_ECC: 1470 bit_mask = EX_DMA_SINGLE_PORT_ECC; 1471 break; 1472 case FMAN_EX_DMA_READ_ECC: 1473 bit_mask = EX_DMA_READ_ECC; 1474 break; 1475 case FMAN_EX_DMA_SYSTEM_WRITE_ECC: 1476 bit_mask = EX_DMA_SYSTEM_WRITE_ECC; 1477 break; 1478 case FMAN_EX_DMA_FM_WRITE_ECC: 1479 bit_mask = EX_DMA_FM_WRITE_ECC; 1480 break; 1481 case FMAN_EX_FPM_STALL_ON_TASKS: 1482 bit_mask = EX_FPM_STALL_ON_TASKS; 1483 break; 1484 case FMAN_EX_FPM_SINGLE_ECC: 1485 bit_mask = EX_FPM_SINGLE_ECC; 1486 break; 1487 case FMAN_EX_FPM_DOUBLE_ECC: 1488 bit_mask = EX_FPM_DOUBLE_ECC; 1489 break; 1490 case FMAN_EX_QMI_SINGLE_ECC: 1491 bit_mask = EX_QMI_SINGLE_ECC; 1492 break; 1493 case FMAN_EX_QMI_DOUBLE_ECC: 1494 bit_mask = EX_QMI_DOUBLE_ECC; 1495 break; 1496 case FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID: 1497 bit_mask = EX_QMI_DEQ_FROM_UNKNOWN_PORTID; 1498 break; 1499 case FMAN_EX_BMI_LIST_RAM_ECC: 1500 bit_mask = EX_BMI_LIST_RAM_ECC; 1501 break; 1502 case FMAN_EX_BMI_STORAGE_PROFILE_ECC: 1503 bit_mask = EX_BMI_STORAGE_PROFILE_ECC; 1504 break; 1505 case FMAN_EX_BMI_STATISTICS_RAM_ECC: 1506 bit_mask = EX_BMI_STATISTICS_RAM_ECC; 1507 break; 1508 case FMAN_EX_BMI_DISPATCH_RAM_ECC: 1509 bit_mask = EX_BMI_DISPATCH_RAM_ECC; 1510 break; 1511 case FMAN_EX_MURAM_ECC: 1512 bit_mask = EX_MURAM_ECC; 1513 break; 1514 default: 1515 bit_mask = 0; 1516 break; 1517 } 1518 1519 return bit_mask; 1520 } 1521 1522 static int get_module_event(enum fman_event_modules module, u8 mod_id, 1523 enum fman_intr_type intr_type) 1524 { 1525 int event; 1526 1527 switch (module) { 1528 case FMAN_MOD_MAC: 1529 if (intr_type == FMAN_INTR_TYPE_ERR) 1530 event = FMAN_EV_ERR_MAC0 + mod_id; 1531 else 1532 event = FMAN_EV_MAC0 + mod_id; 1533 break; 1534 case FMAN_MOD_FMAN_CTRL: 1535 if (intr_type == FMAN_INTR_TYPE_ERR) 1536 event = FMAN_EV_CNT; 1537 else 1538 event = (FMAN_EV_FMAN_CTRL_0 + mod_id); 1539 break; 1540 case FMAN_MOD_DUMMY_LAST: 1541 event = FMAN_EV_CNT; 1542 break; 1543 default: 1544 event = FMAN_EV_CNT; 1545 break; 1546 } 1547 1548 return event; 1549 } 1550 1551 static int set_size_of_fifo(struct fman *fman, u8 port_id, u32 *size_of_fifo, 1552 u32 *extra_size_of_fifo) 1553 { 1554 struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs; 1555 u32 fifo = *size_of_fifo; 1556 u32 extra_fifo = *extra_size_of_fifo; 1557 u32 tmp; 1558 1559 /* if this is the first time a port requires extra_fifo_pool_size, 1560 * the total extra_fifo_pool_size must be initialized to 1 buffer per 1561 * port 1562 */ 1563 if (extra_fifo && !fman->state->extra_fifo_pool_size) 1564 fman->state->extra_fifo_pool_size = 1565 fman->state->num_of_rx_ports * FMAN_BMI_FIFO_UNITS; 1566 1567 fman->state->extra_fifo_pool_size = 1568 max(fman->state->extra_fifo_pool_size, extra_fifo); 1569 1570 /* check that there are enough uncommitted fifo size */ 1571 if ((fman->state->accumulated_fifo_size + fifo) > 1572 (fman->state->total_fifo_size - 1573 fman->state->extra_fifo_pool_size)) { 1574 dev_err(fman->dev, "%s: Requested fifo size and extra size exceed total FIFO size.\n", 1575 __func__); 1576 return -EAGAIN; 1577 } 1578 1579 /* Read, modify and write to HW */ 1580 tmp = (fifo / FMAN_BMI_FIFO_UNITS - 1) | 1581 ((extra_fifo / FMAN_BMI_FIFO_UNITS) << 1582 BMI_EXTRA_FIFO_SIZE_SHIFT); 1583 iowrite32be(tmp, &bmi_rg->fmbm_pfs[port_id - 1]); 1584 1585 /* update accumulated */ 1586 fman->state->accumulated_fifo_size += fifo; 1587 1588 return 0; 1589 } 1590 1591 static int set_num_of_tasks(struct fman *fman, u8 port_id, u8 *num_of_tasks, 1592 u8 *num_of_extra_tasks) 1593 { 1594 struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs; 1595 u8 tasks = *num_of_tasks; 1596 u8 extra_tasks = *num_of_extra_tasks; 1597 u32 tmp; 1598 1599 if (extra_tasks) 1600 fman->state->extra_tasks_pool_size = 1601 max(fman->state->extra_tasks_pool_size, extra_tasks); 1602 1603 /* check that there are enough uncommitted tasks */ 1604 if ((fman->state->accumulated_num_of_tasks + tasks) > 1605 (fman->state->total_num_of_tasks - 1606 fman->state->extra_tasks_pool_size)) { 1607 dev_err(fman->dev, "%s: Requested num_of_tasks and extra tasks pool for fm%d exceed total num_of_tasks.\n", 1608 __func__, fman->state->fm_id); 1609 return -EAGAIN; 1610 } 1611 /* update accumulated */ 1612 fman->state->accumulated_num_of_tasks += tasks; 1613 1614 /* Write to HW */ 1615 tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]) & 1616 ~(BMI_NUM_OF_TASKS_MASK | BMI_NUM_OF_EXTRA_TASKS_MASK); 1617 tmp |= ((u32)((tasks - 1) << BMI_NUM_OF_TASKS_SHIFT) | 1618 (u32)(extra_tasks << BMI_EXTRA_NUM_OF_TASKS_SHIFT)); 1619 iowrite32be(tmp, &bmi_rg->fmbm_pp[port_id - 1]); 1620 1621 return 0; 1622 } 1623 1624 static int set_num_of_open_dmas(struct fman *fman, u8 port_id, 1625 u8 *num_of_open_dmas, 1626 u8 *num_of_extra_open_dmas) 1627 { 1628 struct fman_bmi_regs __iomem *bmi_rg = fman->bmi_regs; 1629 u8 open_dmas = *num_of_open_dmas; 1630 u8 extra_open_dmas = *num_of_extra_open_dmas; 1631 u8 total_num_dmas = 0, current_val = 0, current_extra_val = 0; 1632 u32 tmp; 1633 1634 if (!open_dmas) { 1635 /* Configuration according to values in the HW. 1636 * read the current number of open Dma's 1637 */ 1638 tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]); 1639 current_extra_val = (u8)((tmp & BMI_NUM_OF_EXTRA_DMAS_MASK) >> 1640 BMI_EXTRA_NUM_OF_DMAS_SHIFT); 1641 1642 tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]); 1643 current_val = (u8)(((tmp & BMI_NUM_OF_DMAS_MASK) >> 1644 BMI_NUM_OF_DMAS_SHIFT) + 1); 1645 1646 /* This is the first configuration and user did not 1647 * specify value (!open_dmas), reset values will be used 1648 * and we just save these values for resource management 1649 */ 1650 fman->state->extra_open_dmas_pool_size = 1651 (u8)max(fman->state->extra_open_dmas_pool_size, 1652 current_extra_val); 1653 fman->state->accumulated_num_of_open_dmas += current_val; 1654 *num_of_open_dmas = current_val; 1655 *num_of_extra_open_dmas = current_extra_val; 1656 return 0; 1657 } 1658 1659 if (extra_open_dmas > current_extra_val) 1660 fman->state->extra_open_dmas_pool_size = 1661 (u8)max(fman->state->extra_open_dmas_pool_size, 1662 extra_open_dmas); 1663 1664 if ((fman->state->rev_info.major < 6) && 1665 (fman->state->accumulated_num_of_open_dmas - current_val + 1666 open_dmas > fman->state->max_num_of_open_dmas)) { 1667 dev_err(fman->dev, "%s: Requested num_of_open_dmas for fm%d exceeds total num_of_open_dmas.\n", 1668 __func__, fman->state->fm_id); 1669 return -EAGAIN; 1670 } else if ((fman->state->rev_info.major >= 6) && 1671 !((fman->state->rev_info.major == 6) && 1672 (fman->state->rev_info.minor == 0)) && 1673 (fman->state->accumulated_num_of_open_dmas - 1674 current_val + open_dmas > 1675 fman->state->dma_thresh_max_commq + 1)) { 1676 dev_err(fman->dev, "%s: Requested num_of_open_dmas for fm%d exceeds DMA Command queue (%d)\n", 1677 __func__, fman->state->fm_id, 1678 fman->state->dma_thresh_max_commq + 1); 1679 return -EAGAIN; 1680 } 1681 1682 WARN_ON(fman->state->accumulated_num_of_open_dmas < current_val); 1683 /* update acummulated */ 1684 fman->state->accumulated_num_of_open_dmas -= current_val; 1685 fman->state->accumulated_num_of_open_dmas += open_dmas; 1686 1687 if (fman->state->rev_info.major < 6) 1688 total_num_dmas = 1689 (u8)(fman->state->accumulated_num_of_open_dmas + 1690 fman->state->extra_open_dmas_pool_size); 1691 1692 /* calculate reg */ 1693 tmp = ioread32be(&bmi_rg->fmbm_pp[port_id - 1]) & 1694 ~(BMI_NUM_OF_DMAS_MASK | BMI_NUM_OF_EXTRA_DMAS_MASK); 1695 tmp |= (u32)(((open_dmas - 1) << BMI_NUM_OF_DMAS_SHIFT) | 1696 (extra_open_dmas << BMI_EXTRA_NUM_OF_DMAS_SHIFT)); 1697 iowrite32be(tmp, &bmi_rg->fmbm_pp[port_id - 1]); 1698 1699 /* update total num of DMA's with committed number of open DMAS, 1700 * and max uncommitted pool. 1701 */ 1702 if (total_num_dmas) { 1703 tmp = ioread32be(&bmi_rg->fmbm_cfg2) & ~BMI_CFG2_DMAS_MASK; 1704 tmp |= (u32)(total_num_dmas - 1) << BMI_CFG2_DMAS_SHIFT; 1705 iowrite32be(tmp, &bmi_rg->fmbm_cfg2); 1706 } 1707 1708 return 0; 1709 } 1710 1711 static int fman_config(struct fman *fman) 1712 { 1713 void __iomem *base_addr; 1714 int err; 1715 1716 base_addr = fman->dts_params.base_addr; 1717 1718 fman->state = kzalloc(sizeof(*fman->state), GFP_KERNEL); 1719 if (!fman->state) 1720 goto err_fm_state; 1721 1722 /* Allocate the FM driver's parameters structure */ 1723 fman->cfg = kzalloc(sizeof(*fman->cfg), GFP_KERNEL); 1724 if (!fman->cfg) 1725 goto err_fm_drv; 1726 1727 /* Initialize MURAM block */ 1728 fman->muram = 1729 fman_muram_init(fman->dts_params.muram_res.start, 1730 resource_size(&fman->dts_params.muram_res)); 1731 if (!fman->muram) 1732 goto err_fm_soc_specific; 1733 1734 /* Initialize FM parameters which will be kept by the driver */ 1735 fman->state->fm_id = fman->dts_params.id; 1736 fman->state->fm_clk_freq = fman->dts_params.clk_freq; 1737 fman->state->qman_channel_base = fman->dts_params.qman_channel_base; 1738 fman->state->num_of_qman_channels = 1739 fman->dts_params.num_of_qman_channels; 1740 fman->state->res = fman->dts_params.res; 1741 fman->exception_cb = fman_exceptions; 1742 fman->bus_error_cb = fman_bus_error; 1743 fman->fpm_regs = base_addr + FPM_OFFSET; 1744 fman->bmi_regs = base_addr + BMI_OFFSET; 1745 fman->qmi_regs = base_addr + QMI_OFFSET; 1746 fman->dma_regs = base_addr + DMA_OFFSET; 1747 fman->hwp_regs = base_addr + HWP_OFFSET; 1748 fman->kg_regs = base_addr + KG_OFFSET; 1749 fman->base_addr = base_addr; 1750 1751 spin_lock_init(&fman->spinlock); 1752 fman_defconfig(fman->cfg); 1753 1754 fman->state->extra_fifo_pool_size = 0; 1755 fman->state->exceptions = (EX_DMA_BUS_ERROR | 1756 EX_DMA_READ_ECC | 1757 EX_DMA_SYSTEM_WRITE_ECC | 1758 EX_DMA_FM_WRITE_ECC | 1759 EX_FPM_STALL_ON_TASKS | 1760 EX_FPM_SINGLE_ECC | 1761 EX_FPM_DOUBLE_ECC | 1762 EX_QMI_DEQ_FROM_UNKNOWN_PORTID | 1763 EX_BMI_LIST_RAM_ECC | 1764 EX_BMI_STORAGE_PROFILE_ECC | 1765 EX_BMI_STATISTICS_RAM_ECC | 1766 EX_MURAM_ECC | 1767 EX_BMI_DISPATCH_RAM_ECC | 1768 EX_QMI_DOUBLE_ECC | 1769 EX_QMI_SINGLE_ECC); 1770 1771 /* Read FMan revision for future use*/ 1772 fman_get_revision(fman, &fman->state->rev_info); 1773 1774 err = fill_soc_specific_params(fman->state); 1775 if (err) 1776 goto err_fm_soc_specific; 1777 1778 /* FM_AID_MODE_NO_TNUM_SW005 Errata workaround */ 1779 if (fman->state->rev_info.major >= 6) 1780 fman->cfg->dma_aid_mode = FMAN_DMA_AID_OUT_PORT_ID; 1781 1782 fman->cfg->qmi_def_tnums_thresh = fman->state->qmi_def_tnums_thresh; 1783 1784 fman->state->total_num_of_tasks = 1785 (u8)DFLT_TOTAL_NUM_OF_TASKS(fman->state->rev_info.major, 1786 fman->state->rev_info.minor, 1787 fman->state->bmi_max_num_of_tasks); 1788 1789 if (fman->state->rev_info.major < 6) { 1790 fman->cfg->dma_comm_qtsh_clr_emer = 1791 (u8)DFLT_DMA_COMM_Q_LOW(fman->state->rev_info.major, 1792 fman->state->dma_thresh_max_commq); 1793 1794 fman->cfg->dma_comm_qtsh_asrt_emer = 1795 (u8)DFLT_DMA_COMM_Q_HIGH(fman->state->rev_info.major, 1796 fman->state->dma_thresh_max_commq); 1797 1798 fman->cfg->dma_cam_num_of_entries = 1799 DFLT_DMA_CAM_NUM_OF_ENTRIES(fman->state->rev_info.major); 1800 1801 fman->cfg->dma_read_buf_tsh_clr_emer = 1802 DFLT_DMA_READ_INT_BUF_LOW(fman->state->dma_thresh_max_buf); 1803 1804 fman->cfg->dma_read_buf_tsh_asrt_emer = 1805 DFLT_DMA_READ_INT_BUF_HIGH(fman->state->dma_thresh_max_buf); 1806 1807 fman->cfg->dma_write_buf_tsh_clr_emer = 1808 DFLT_DMA_WRITE_INT_BUF_LOW(fman->state->dma_thresh_max_buf); 1809 1810 fman->cfg->dma_write_buf_tsh_asrt_emer = 1811 DFLT_DMA_WRITE_INT_BUF_HIGH(fman->state->dma_thresh_max_buf); 1812 1813 fman->cfg->dma_axi_dbg_num_of_beats = 1814 DFLT_AXI_DBG_NUM_OF_BEATS; 1815 } 1816 1817 return 0; 1818 1819 err_fm_soc_specific: 1820 kfree(fman->cfg); 1821 err_fm_drv: 1822 kfree(fman->state); 1823 err_fm_state: 1824 kfree(fman); 1825 return -EINVAL; 1826 } 1827 1828 static int fman_reset(struct fman *fman) 1829 { 1830 u32 count; 1831 int err = 0; 1832 1833 if (fman->state->rev_info.major < 6) { 1834 iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc); 1835 /* Wait for reset completion */ 1836 count = 100; 1837 do { 1838 udelay(1); 1839 } while (((ioread32be(&fman->fpm_regs->fm_rstc)) & 1840 FPM_RSTC_FM_RESET) && --count); 1841 if (count == 0) 1842 err = -EBUSY; 1843 1844 goto _return; 1845 } else { 1846 #ifdef CONFIG_PPC 1847 struct device_node *guts_node; 1848 struct ccsr_guts __iomem *guts_regs; 1849 u32 devdisr2, reg; 1850 1851 /* Errata A007273 */ 1852 guts_node = 1853 of_find_compatible_node(NULL, NULL, 1854 "fsl,qoriq-device-config-2.0"); 1855 if (!guts_node) { 1856 dev_err(fman->dev, "%s: Couldn't find guts node\n", 1857 __func__); 1858 goto guts_node; 1859 } 1860 1861 guts_regs = of_iomap(guts_node, 0); 1862 if (!guts_regs) { 1863 dev_err(fman->dev, "%s: Couldn't map %pOF regs\n", 1864 __func__, guts_node); 1865 goto guts_regs; 1866 } 1867 #define FMAN1_ALL_MACS_MASK 0xFCC00000 1868 #define FMAN2_ALL_MACS_MASK 0x000FCC00 1869 /* Read current state */ 1870 devdisr2 = ioread32be(&guts_regs->devdisr2); 1871 if (fman->dts_params.id == 0) 1872 reg = devdisr2 & ~FMAN1_ALL_MACS_MASK; 1873 else 1874 reg = devdisr2 & ~FMAN2_ALL_MACS_MASK; 1875 1876 /* Enable all MACs */ 1877 iowrite32be(reg, &guts_regs->devdisr2); 1878 #endif 1879 1880 /* Perform FMan reset */ 1881 iowrite32be(FPM_RSTC_FM_RESET, &fman->fpm_regs->fm_rstc); 1882 1883 /* Wait for reset completion */ 1884 count = 100; 1885 do { 1886 udelay(1); 1887 } while (((ioread32be(&fman->fpm_regs->fm_rstc)) & 1888 FPM_RSTC_FM_RESET) && --count); 1889 if (count == 0) { 1890 #ifdef CONFIG_PPC 1891 iounmap(guts_regs); 1892 of_node_put(guts_node); 1893 #endif 1894 err = -EBUSY; 1895 goto _return; 1896 } 1897 #ifdef CONFIG_PPC 1898 1899 /* Restore devdisr2 value */ 1900 iowrite32be(devdisr2, &guts_regs->devdisr2); 1901 1902 iounmap(guts_regs); 1903 of_node_put(guts_node); 1904 #endif 1905 1906 goto _return; 1907 1908 #ifdef CONFIG_PPC 1909 guts_regs: 1910 of_node_put(guts_node); 1911 guts_node: 1912 dev_dbg(fman->dev, "%s: Didn't perform FManV3 reset due to Errata A007273!\n", 1913 __func__); 1914 #endif 1915 } 1916 _return: 1917 return err; 1918 } 1919 1920 static int fman_init(struct fman *fman) 1921 { 1922 struct fman_cfg *cfg = NULL; 1923 int err = 0, i, count; 1924 1925 if (is_init_done(fman->cfg)) 1926 return -EINVAL; 1927 1928 fman->state->count1_micro_bit = FM_TIMESTAMP_1_USEC_BIT; 1929 1930 cfg = fman->cfg; 1931 1932 /* clear revision-dependent non existing exception */ 1933 if (fman->state->rev_info.major < 6) 1934 fman->state->exceptions &= ~FMAN_EX_BMI_DISPATCH_RAM_ECC; 1935 1936 if (fman->state->rev_info.major >= 6) 1937 fman->state->exceptions &= ~FMAN_EX_QMI_SINGLE_ECC; 1938 1939 /* clear CPG */ 1940 memset_io((void __iomem *)(fman->base_addr + CGP_OFFSET), 0, 1941 fman->state->fm_port_num_of_cg); 1942 1943 /* Save LIODN info before FMan reset 1944 * Skipping non-existent port 0 (i = 1) 1945 */ 1946 for (i = 1; i < FMAN_LIODN_TBL; i++) { 1947 u32 liodn_base; 1948 1949 fman->liodn_offset[i] = 1950 ioread32be(&fman->bmi_regs->fmbm_spliodn[i - 1]); 1951 if (!IS_ENABLED(CONFIG_FSL_PAMU)) 1952 continue; 1953 liodn_base = ioread32be(&fman->dma_regs->fmdmplr[i / 2]); 1954 if (i % 2) { 1955 /* FMDM_PLR LSB holds LIODN base for odd ports */ 1956 liodn_base &= DMA_LIODN_BASE_MASK; 1957 } else { 1958 /* FMDM_PLR MSB holds LIODN base for even ports */ 1959 liodn_base >>= DMA_LIODN_SHIFT; 1960 liodn_base &= DMA_LIODN_BASE_MASK; 1961 } 1962 fman->liodn_base[i] = liodn_base; 1963 } 1964 1965 err = fman_reset(fman); 1966 if (err) 1967 return err; 1968 1969 if (ioread32be(&fman->qmi_regs->fmqm_gs) & QMI_GS_HALT_NOT_BUSY) { 1970 resume(fman->fpm_regs); 1971 /* Wait until QMI is not in halt not busy state */ 1972 count = 100; 1973 do { 1974 udelay(1); 1975 } while (((ioread32be(&fman->qmi_regs->fmqm_gs)) & 1976 QMI_GS_HALT_NOT_BUSY) && --count); 1977 if (count == 0) 1978 dev_warn(fman->dev, "%s: QMI is in halt not busy state\n", 1979 __func__); 1980 } 1981 1982 if (clear_iram(fman) != 0) 1983 return -EINVAL; 1984 1985 cfg->exceptions = fman->state->exceptions; 1986 1987 /* Init DMA Registers */ 1988 1989 err = dma_init(fman); 1990 if (err != 0) { 1991 free_init_resources(fman); 1992 return err; 1993 } 1994 1995 /* Init FPM Registers */ 1996 fpm_init(fman->fpm_regs, fman->cfg); 1997 1998 /* define common resources */ 1999 /* allocate MURAM for FIFO according to total size */ 2000 fman->fifo_offset = fman_muram_alloc(fman->muram, 2001 fman->state->total_fifo_size); 2002 if (IS_ERR_VALUE(fman->fifo_offset)) { 2003 free_init_resources(fman); 2004 dev_err(fman->dev, "%s: MURAM alloc for BMI FIFO failed\n", 2005 __func__); 2006 return -ENOMEM; 2007 } 2008 2009 cfg->fifo_base_addr = fman->fifo_offset; 2010 cfg->total_fifo_size = fman->state->total_fifo_size; 2011 cfg->total_num_of_tasks = fman->state->total_num_of_tasks; 2012 cfg->clk_freq = fman->state->fm_clk_freq; 2013 2014 /* Init BMI Registers */ 2015 bmi_init(fman->bmi_regs, fman->cfg); 2016 2017 /* Init QMI Registers */ 2018 qmi_init(fman->qmi_regs, fman->cfg); 2019 2020 /* Init HW Parser */ 2021 hwp_init(fman->hwp_regs); 2022 2023 /* Init KeyGen */ 2024 fman->keygen = keygen_init(fman->kg_regs); 2025 if (!fman->keygen) 2026 return -EINVAL; 2027 2028 err = enable(fman, cfg); 2029 if (err != 0) 2030 return err; 2031 2032 enable_time_stamp(fman); 2033 2034 kfree(fman->cfg); 2035 fman->cfg = NULL; 2036 2037 return 0; 2038 } 2039 2040 static int fman_set_exception(struct fman *fman, 2041 enum fman_exceptions exception, bool enable) 2042 { 2043 u32 bit_mask = 0; 2044 2045 if (!is_init_done(fman->cfg)) 2046 return -EINVAL; 2047 2048 bit_mask = get_exception_flag(exception); 2049 if (bit_mask) { 2050 if (enable) 2051 fman->state->exceptions |= bit_mask; 2052 else 2053 fman->state->exceptions &= ~bit_mask; 2054 } else { 2055 dev_err(fman->dev, "%s: Undefined exception (%d)\n", 2056 __func__, exception); 2057 return -EINVAL; 2058 } 2059 2060 return set_exception(fman, exception, enable); 2061 } 2062 2063 /** 2064 * fman_register_intr 2065 * @fman: A Pointer to FMan device 2066 * @module: Calling module 2067 * @mod_id: Module id (if more than 1 exists, '0' if not) 2068 * @intr_type: Interrupt type (error/normal) selection. 2069 * @isr_cb: The interrupt service routine. 2070 * @src_arg: Argument to be passed to isr_cb. 2071 * 2072 * Used to register an event handler to be processed by FMan 2073 * 2074 * Return: 0 on success; Error code otherwise. 2075 */ 2076 void fman_register_intr(struct fman *fman, enum fman_event_modules module, 2077 u8 mod_id, enum fman_intr_type intr_type, 2078 void (*isr_cb)(void *src_arg), void *src_arg) 2079 { 2080 int event = 0; 2081 2082 event = get_module_event(module, mod_id, intr_type); 2083 WARN_ON(event >= FMAN_EV_CNT); 2084 2085 /* register in local FM structure */ 2086 fman->intr_mng[event].isr_cb = isr_cb; 2087 fman->intr_mng[event].src_handle = src_arg; 2088 } 2089 EXPORT_SYMBOL(fman_register_intr); 2090 2091 /** 2092 * fman_unregister_intr 2093 * @fman: A Pointer to FMan device 2094 * @module: Calling module 2095 * @mod_id: Module id (if more than 1 exists, '0' if not) 2096 * @intr_type: Interrupt type (error/normal) selection. 2097 * 2098 * Used to unregister an event handler to be processed by FMan 2099 * 2100 * Return: 0 on success; Error code otherwise. 2101 */ 2102 void fman_unregister_intr(struct fman *fman, enum fman_event_modules module, 2103 u8 mod_id, enum fman_intr_type intr_type) 2104 { 2105 int event = 0; 2106 2107 event = get_module_event(module, mod_id, intr_type); 2108 WARN_ON(event >= FMAN_EV_CNT); 2109 2110 fman->intr_mng[event].isr_cb = NULL; 2111 fman->intr_mng[event].src_handle = NULL; 2112 } 2113 EXPORT_SYMBOL(fman_unregister_intr); 2114 2115 /** 2116 * fman_set_port_params 2117 * @fman: A Pointer to FMan device 2118 * @port_params: Port parameters 2119 * 2120 * Used by FMan Port to pass parameters to the FMan 2121 * 2122 * Return: 0 on success; Error code otherwise. 2123 */ 2124 int fman_set_port_params(struct fman *fman, 2125 struct fman_port_init_params *port_params) 2126 { 2127 int err; 2128 unsigned long flags; 2129 u8 port_id = port_params->port_id, mac_id; 2130 2131 spin_lock_irqsave(&fman->spinlock, flags); 2132 2133 err = set_num_of_tasks(fman, port_params->port_id, 2134 &port_params->num_of_tasks, 2135 &port_params->num_of_extra_tasks); 2136 if (err) 2137 goto return_err; 2138 2139 /* TX Ports */ 2140 if (port_params->port_type != FMAN_PORT_TYPE_RX) { 2141 u32 enq_th, deq_th, reg; 2142 2143 /* update qmi ENQ/DEQ threshold */ 2144 fman->state->accumulated_num_of_deq_tnums += 2145 port_params->deq_pipeline_depth; 2146 enq_th = (ioread32be(&fman->qmi_regs->fmqm_gc) & 2147 QMI_CFG_ENQ_MASK) >> QMI_CFG_ENQ_SHIFT; 2148 /* if enq_th is too big, we reduce it to the max value 2149 * that is still 0 2150 */ 2151 if (enq_th >= (fman->state->qmi_max_num_of_tnums - 2152 fman->state->accumulated_num_of_deq_tnums)) { 2153 enq_th = 2154 fman->state->qmi_max_num_of_tnums - 2155 fman->state->accumulated_num_of_deq_tnums - 1; 2156 2157 reg = ioread32be(&fman->qmi_regs->fmqm_gc); 2158 reg &= ~QMI_CFG_ENQ_MASK; 2159 reg |= (enq_th << QMI_CFG_ENQ_SHIFT); 2160 iowrite32be(reg, &fman->qmi_regs->fmqm_gc); 2161 } 2162 2163 deq_th = ioread32be(&fman->qmi_regs->fmqm_gc) & 2164 QMI_CFG_DEQ_MASK; 2165 /* if deq_th is too small, we enlarge it to the min 2166 * value that is still 0. 2167 * depTh may not be larger than 63 2168 * (fman->state->qmi_max_num_of_tnums-1). 2169 */ 2170 if ((deq_th <= fman->state->accumulated_num_of_deq_tnums) && 2171 (deq_th < fman->state->qmi_max_num_of_tnums - 1)) { 2172 deq_th = fman->state->accumulated_num_of_deq_tnums + 1; 2173 reg = ioread32be(&fman->qmi_regs->fmqm_gc); 2174 reg &= ~QMI_CFG_DEQ_MASK; 2175 reg |= deq_th; 2176 iowrite32be(reg, &fman->qmi_regs->fmqm_gc); 2177 } 2178 } 2179 2180 err = set_size_of_fifo(fman, port_params->port_id, 2181 &port_params->size_of_fifo, 2182 &port_params->extra_size_of_fifo); 2183 if (err) 2184 goto return_err; 2185 2186 err = set_num_of_open_dmas(fman, port_params->port_id, 2187 &port_params->num_of_open_dmas, 2188 &port_params->num_of_extra_open_dmas); 2189 if (err) 2190 goto return_err; 2191 2192 set_port_liodn(fman, port_id, fman->liodn_base[port_id], 2193 fman->liodn_offset[port_id]); 2194 2195 if (fman->state->rev_info.major < 6) 2196 set_port_order_restoration(fman->fpm_regs, port_id); 2197 2198 mac_id = hw_port_id_to_sw_port_id(fman->state->rev_info.major, port_id); 2199 2200 if (port_params->max_frame_length >= fman->state->mac_mfl[mac_id]) { 2201 fman->state->port_mfl[mac_id] = port_params->max_frame_length; 2202 } else { 2203 dev_warn(fman->dev, "%s: Port (%d) max_frame_length is smaller than MAC (%d) current MTU\n", 2204 __func__, port_id, mac_id); 2205 err = -EINVAL; 2206 goto return_err; 2207 } 2208 2209 spin_unlock_irqrestore(&fman->spinlock, flags); 2210 2211 return 0; 2212 2213 return_err: 2214 spin_unlock_irqrestore(&fman->spinlock, flags); 2215 return err; 2216 } 2217 EXPORT_SYMBOL(fman_set_port_params); 2218 2219 /** 2220 * fman_reset_mac 2221 * @fman: A Pointer to FMan device 2222 * @mac_id: MAC id to be reset 2223 * 2224 * Reset a specific MAC 2225 * 2226 * Return: 0 on success; Error code otherwise. 2227 */ 2228 int fman_reset_mac(struct fman *fman, u8 mac_id) 2229 { 2230 struct fman_fpm_regs __iomem *fpm_rg = fman->fpm_regs; 2231 u32 msk, timeout = 100; 2232 2233 if (fman->state->rev_info.major >= 6) { 2234 dev_err(fman->dev, "%s: FMan MAC reset no available for FMan V3!\n", 2235 __func__); 2236 return -EINVAL; 2237 } 2238 2239 /* Get the relevant bit mask */ 2240 switch (mac_id) { 2241 case 0: 2242 msk = FPM_RSTC_MAC0_RESET; 2243 break; 2244 case 1: 2245 msk = FPM_RSTC_MAC1_RESET; 2246 break; 2247 case 2: 2248 msk = FPM_RSTC_MAC2_RESET; 2249 break; 2250 case 3: 2251 msk = FPM_RSTC_MAC3_RESET; 2252 break; 2253 case 4: 2254 msk = FPM_RSTC_MAC4_RESET; 2255 break; 2256 case 5: 2257 msk = FPM_RSTC_MAC5_RESET; 2258 break; 2259 case 6: 2260 msk = FPM_RSTC_MAC6_RESET; 2261 break; 2262 case 7: 2263 msk = FPM_RSTC_MAC7_RESET; 2264 break; 2265 case 8: 2266 msk = FPM_RSTC_MAC8_RESET; 2267 break; 2268 case 9: 2269 msk = FPM_RSTC_MAC9_RESET; 2270 break; 2271 default: 2272 dev_warn(fman->dev, "%s: Illegal MAC Id [%d]\n", 2273 __func__, mac_id); 2274 return -EINVAL; 2275 } 2276 2277 /* reset */ 2278 iowrite32be(msk, &fpm_rg->fm_rstc); 2279 while ((ioread32be(&fpm_rg->fm_rstc) & msk) && --timeout) 2280 udelay(10); 2281 2282 if (!timeout) 2283 return -EIO; 2284 2285 return 0; 2286 } 2287 EXPORT_SYMBOL(fman_reset_mac); 2288 2289 /** 2290 * fman_set_mac_max_frame 2291 * @fman: A Pointer to FMan device 2292 * @mac_id: MAC id 2293 * @mfl: Maximum frame length 2294 * 2295 * Set maximum frame length of specific MAC in FMan driver 2296 * 2297 * Return: 0 on success; Error code otherwise. 2298 */ 2299 int fman_set_mac_max_frame(struct fman *fman, u8 mac_id, u16 mfl) 2300 { 2301 /* if port is already initialized, check that MaxFrameLength is smaller 2302 * or equal to the port's max 2303 */ 2304 if ((!fman->state->port_mfl[mac_id]) || 2305 (mfl <= fman->state->port_mfl[mac_id])) { 2306 fman->state->mac_mfl[mac_id] = mfl; 2307 } else { 2308 dev_warn(fman->dev, "%s: MAC max_frame_length is larger than Port max_frame_length\n", 2309 __func__); 2310 return -EINVAL; 2311 } 2312 return 0; 2313 } 2314 EXPORT_SYMBOL(fman_set_mac_max_frame); 2315 2316 /** 2317 * fman_get_clock_freq 2318 * @fman: A Pointer to FMan device 2319 * 2320 * Get FMan clock frequency 2321 * 2322 * Return: FMan clock frequency 2323 */ 2324 u16 fman_get_clock_freq(struct fman *fman) 2325 { 2326 return fman->state->fm_clk_freq; 2327 } 2328 2329 /** 2330 * fman_get_bmi_max_fifo_size 2331 * @fman: A Pointer to FMan device 2332 * 2333 * Get FMan maximum FIFO size 2334 * 2335 * Return: FMan Maximum FIFO size 2336 */ 2337 u32 fman_get_bmi_max_fifo_size(struct fman *fman) 2338 { 2339 return fman->state->bmi_max_fifo_size; 2340 } 2341 EXPORT_SYMBOL(fman_get_bmi_max_fifo_size); 2342 2343 /** 2344 * fman_get_revision 2345 * @fman: - Pointer to the FMan module 2346 * @rev_info: - A structure of revision information parameters. 2347 * 2348 * Returns the FM revision 2349 * 2350 * Allowed only following fman_init(). 2351 * 2352 * Return: 0 on success; Error code otherwise. 2353 */ 2354 void fman_get_revision(struct fman *fman, struct fman_rev_info *rev_info) 2355 { 2356 u32 tmp; 2357 2358 tmp = ioread32be(&fman->fpm_regs->fm_ip_rev_1); 2359 rev_info->major = (u8)((tmp & FPM_REV1_MAJOR_MASK) >> 2360 FPM_REV1_MAJOR_SHIFT); 2361 rev_info->minor = tmp & FPM_REV1_MINOR_MASK; 2362 } 2363 EXPORT_SYMBOL(fman_get_revision); 2364 2365 /** 2366 * fman_get_qman_channel_id 2367 * @fman: A Pointer to FMan device 2368 * @port_id: Port id 2369 * 2370 * Get QMan channel ID associated to the Port id 2371 * 2372 * Return: QMan channel ID 2373 */ 2374 u32 fman_get_qman_channel_id(struct fman *fman, u32 port_id) 2375 { 2376 int i; 2377 2378 if (fman->state->rev_info.major >= 6) { 2379 static const u32 port_ids[] = { 2380 0x30, 0x31, 0x28, 0x29, 0x2a, 0x2b, 2381 0x2c, 0x2d, 0x2, 0x3, 0x4, 0x5, 0x7, 0x7 2382 }; 2383 2384 for (i = 0; i < fman->state->num_of_qman_channels; i++) { 2385 if (port_ids[i] == port_id) 2386 break; 2387 } 2388 } else { 2389 static const u32 port_ids[] = { 2390 0x30, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x1, 2391 0x2, 0x3, 0x4, 0x5, 0x7, 0x7 2392 }; 2393 2394 for (i = 0; i < fman->state->num_of_qman_channels; i++) { 2395 if (port_ids[i] == port_id) 2396 break; 2397 } 2398 } 2399 2400 if (i == fman->state->num_of_qman_channels) 2401 return 0; 2402 2403 return fman->state->qman_channel_base + i; 2404 } 2405 EXPORT_SYMBOL(fman_get_qman_channel_id); 2406 2407 /** 2408 * fman_get_mem_region 2409 * @fman: A Pointer to FMan device 2410 * 2411 * Get FMan memory region 2412 * 2413 * Return: A structure with FMan memory region information 2414 */ 2415 struct resource *fman_get_mem_region(struct fman *fman) 2416 { 2417 return fman->state->res; 2418 } 2419 EXPORT_SYMBOL(fman_get_mem_region); 2420 2421 /* Bootargs defines */ 2422 /* Extra headroom for RX buffers - Default, min and max */ 2423 #define FSL_FM_RX_EXTRA_HEADROOM 64 2424 #define FSL_FM_RX_EXTRA_HEADROOM_MIN 16 2425 #define FSL_FM_RX_EXTRA_HEADROOM_MAX 384 2426 2427 /* Maximum frame length */ 2428 #define FSL_FM_MAX_FRAME_SIZE 1522 2429 #define FSL_FM_MAX_POSSIBLE_FRAME_SIZE 9600 2430 #define FSL_FM_MIN_POSSIBLE_FRAME_SIZE 64 2431 2432 /* Extra headroom for Rx buffers. 2433 * FMan is instructed to allocate, on the Rx path, this amount of 2434 * space at the beginning of a data buffer, beside the DPA private 2435 * data area and the IC fields. 2436 * Does not impact Tx buffer layout. 2437 * Configurable from bootargs. 64 by default, it's needed on 2438 * particular forwarding scenarios that add extra headers to the 2439 * forwarded frame. 2440 */ 2441 static int fsl_fm_rx_extra_headroom = FSL_FM_RX_EXTRA_HEADROOM; 2442 module_param(fsl_fm_rx_extra_headroom, int, 0); 2443 MODULE_PARM_DESC(fsl_fm_rx_extra_headroom, "Extra headroom for Rx buffers"); 2444 2445 /* Max frame size, across all interfaces. 2446 * Configurable from bootargs, to avoid allocating oversized (socket) 2447 * buffers when not using jumbo frames. 2448 * Must be large enough to accommodate the network MTU, but small enough 2449 * to avoid wasting skb memory. 2450 */ 2451 static int fsl_fm_max_frm = FSL_FM_MAX_FRAME_SIZE; 2452 module_param(fsl_fm_max_frm, int, 0); 2453 MODULE_PARM_DESC(fsl_fm_max_frm, "Maximum frame size, across all interfaces"); 2454 2455 /** 2456 * fman_get_max_frm 2457 * 2458 * Return: Max frame length configured in the FM driver 2459 */ 2460 u16 fman_get_max_frm(void) 2461 { 2462 static bool fm_check_mfl; 2463 2464 if (!fm_check_mfl) { 2465 if (fsl_fm_max_frm > FSL_FM_MAX_POSSIBLE_FRAME_SIZE || 2466 fsl_fm_max_frm < FSL_FM_MIN_POSSIBLE_FRAME_SIZE) { 2467 pr_warn("Invalid fsl_fm_max_frm value (%d) in bootargs, valid range is %d-%d. Falling back to the default (%d)\n", 2468 fsl_fm_max_frm, 2469 FSL_FM_MIN_POSSIBLE_FRAME_SIZE, 2470 FSL_FM_MAX_POSSIBLE_FRAME_SIZE, 2471 FSL_FM_MAX_FRAME_SIZE); 2472 fsl_fm_max_frm = FSL_FM_MAX_FRAME_SIZE; 2473 } 2474 fm_check_mfl = true; 2475 } 2476 2477 return fsl_fm_max_frm; 2478 } 2479 EXPORT_SYMBOL(fman_get_max_frm); 2480 2481 /** 2482 * fman_get_rx_extra_headroom 2483 * 2484 * Return: Extra headroom size configured in the FM driver 2485 */ 2486 int fman_get_rx_extra_headroom(void) 2487 { 2488 static bool fm_check_rx_extra_headroom; 2489 2490 if (!fm_check_rx_extra_headroom) { 2491 if (fsl_fm_rx_extra_headroom > FSL_FM_RX_EXTRA_HEADROOM_MAX || 2492 fsl_fm_rx_extra_headroom < FSL_FM_RX_EXTRA_HEADROOM_MIN) { 2493 pr_warn("Invalid fsl_fm_rx_extra_headroom value (%d) in bootargs, valid range is %d-%d. Falling back to the default (%d)\n", 2494 fsl_fm_rx_extra_headroom, 2495 FSL_FM_RX_EXTRA_HEADROOM_MIN, 2496 FSL_FM_RX_EXTRA_HEADROOM_MAX, 2497 FSL_FM_RX_EXTRA_HEADROOM); 2498 fsl_fm_rx_extra_headroom = FSL_FM_RX_EXTRA_HEADROOM; 2499 } 2500 2501 fm_check_rx_extra_headroom = true; 2502 fsl_fm_rx_extra_headroom = ALIGN(fsl_fm_rx_extra_headroom, 16); 2503 } 2504 2505 return fsl_fm_rx_extra_headroom; 2506 } 2507 EXPORT_SYMBOL(fman_get_rx_extra_headroom); 2508 2509 /** 2510 * fman_bind 2511 * @fm_dev: FMan OF device pointer 2512 * 2513 * Bind to a specific FMan device. 2514 * 2515 * Allowed only after the port was created. 2516 * 2517 * Return: A pointer to the FMan device 2518 */ 2519 struct fman *fman_bind(struct device *fm_dev) 2520 { 2521 return (struct fman *)(dev_get_drvdata(get_device(fm_dev))); 2522 } 2523 EXPORT_SYMBOL(fman_bind); 2524 2525 #ifdef CONFIG_DPAA_ERRATUM_A050385 2526 bool fman_has_errata_a050385(void) 2527 { 2528 return fman_has_err_a050385; 2529 } 2530 EXPORT_SYMBOL(fman_has_errata_a050385); 2531 #endif 2532 2533 static irqreturn_t fman_err_irq(int irq, void *handle) 2534 { 2535 struct fman *fman = (struct fman *)handle; 2536 u32 pending; 2537 struct fman_fpm_regs __iomem *fpm_rg; 2538 irqreturn_t single_ret, ret = IRQ_NONE; 2539 2540 if (!is_init_done(fman->cfg)) 2541 return IRQ_NONE; 2542 2543 fpm_rg = fman->fpm_regs; 2544 2545 /* error interrupts */ 2546 pending = ioread32be(&fpm_rg->fm_epi); 2547 if (!pending) 2548 return IRQ_NONE; 2549 2550 if (pending & ERR_INTR_EN_BMI) { 2551 single_ret = bmi_err_event(fman); 2552 if (single_ret == IRQ_HANDLED) 2553 ret = IRQ_HANDLED; 2554 } 2555 if (pending & ERR_INTR_EN_QMI) { 2556 single_ret = qmi_err_event(fman); 2557 if (single_ret == IRQ_HANDLED) 2558 ret = IRQ_HANDLED; 2559 } 2560 if (pending & ERR_INTR_EN_FPM) { 2561 single_ret = fpm_err_event(fman); 2562 if (single_ret == IRQ_HANDLED) 2563 ret = IRQ_HANDLED; 2564 } 2565 if (pending & ERR_INTR_EN_DMA) { 2566 single_ret = dma_err_event(fman); 2567 if (single_ret == IRQ_HANDLED) 2568 ret = IRQ_HANDLED; 2569 } 2570 if (pending & ERR_INTR_EN_MURAM) { 2571 single_ret = muram_err_intr(fman); 2572 if (single_ret == IRQ_HANDLED) 2573 ret = IRQ_HANDLED; 2574 } 2575 2576 /* MAC error interrupts */ 2577 if (pending & ERR_INTR_EN_MAC0) { 2578 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 0); 2579 if (single_ret == IRQ_HANDLED) 2580 ret = IRQ_HANDLED; 2581 } 2582 if (pending & ERR_INTR_EN_MAC1) { 2583 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 1); 2584 if (single_ret == IRQ_HANDLED) 2585 ret = IRQ_HANDLED; 2586 } 2587 if (pending & ERR_INTR_EN_MAC2) { 2588 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 2); 2589 if (single_ret == IRQ_HANDLED) 2590 ret = IRQ_HANDLED; 2591 } 2592 if (pending & ERR_INTR_EN_MAC3) { 2593 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 3); 2594 if (single_ret == IRQ_HANDLED) 2595 ret = IRQ_HANDLED; 2596 } 2597 if (pending & ERR_INTR_EN_MAC4) { 2598 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 4); 2599 if (single_ret == IRQ_HANDLED) 2600 ret = IRQ_HANDLED; 2601 } 2602 if (pending & ERR_INTR_EN_MAC5) { 2603 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 5); 2604 if (single_ret == IRQ_HANDLED) 2605 ret = IRQ_HANDLED; 2606 } 2607 if (pending & ERR_INTR_EN_MAC6) { 2608 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 6); 2609 if (single_ret == IRQ_HANDLED) 2610 ret = IRQ_HANDLED; 2611 } 2612 if (pending & ERR_INTR_EN_MAC7) { 2613 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 7); 2614 if (single_ret == IRQ_HANDLED) 2615 ret = IRQ_HANDLED; 2616 } 2617 if (pending & ERR_INTR_EN_MAC8) { 2618 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 8); 2619 if (single_ret == IRQ_HANDLED) 2620 ret = IRQ_HANDLED; 2621 } 2622 if (pending & ERR_INTR_EN_MAC9) { 2623 single_ret = call_mac_isr(fman, FMAN_EV_ERR_MAC0 + 9); 2624 if (single_ret == IRQ_HANDLED) 2625 ret = IRQ_HANDLED; 2626 } 2627 2628 return ret; 2629 } 2630 2631 static irqreturn_t fman_irq(int irq, void *handle) 2632 { 2633 struct fman *fman = (struct fman *)handle; 2634 u32 pending; 2635 struct fman_fpm_regs __iomem *fpm_rg; 2636 irqreturn_t single_ret, ret = IRQ_NONE; 2637 2638 if (!is_init_done(fman->cfg)) 2639 return IRQ_NONE; 2640 2641 fpm_rg = fman->fpm_regs; 2642 2643 /* normal interrupts */ 2644 pending = ioread32be(&fpm_rg->fm_npi); 2645 if (!pending) 2646 return IRQ_NONE; 2647 2648 if (pending & INTR_EN_QMI) { 2649 single_ret = qmi_event(fman); 2650 if (single_ret == IRQ_HANDLED) 2651 ret = IRQ_HANDLED; 2652 } 2653 2654 /* MAC interrupts */ 2655 if (pending & INTR_EN_MAC0) { 2656 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 0); 2657 if (single_ret == IRQ_HANDLED) 2658 ret = IRQ_HANDLED; 2659 } 2660 if (pending & INTR_EN_MAC1) { 2661 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 1); 2662 if (single_ret == IRQ_HANDLED) 2663 ret = IRQ_HANDLED; 2664 } 2665 if (pending & INTR_EN_MAC2) { 2666 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 2); 2667 if (single_ret == IRQ_HANDLED) 2668 ret = IRQ_HANDLED; 2669 } 2670 if (pending & INTR_EN_MAC3) { 2671 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 3); 2672 if (single_ret == IRQ_HANDLED) 2673 ret = IRQ_HANDLED; 2674 } 2675 if (pending & INTR_EN_MAC4) { 2676 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 4); 2677 if (single_ret == IRQ_HANDLED) 2678 ret = IRQ_HANDLED; 2679 } 2680 if (pending & INTR_EN_MAC5) { 2681 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 5); 2682 if (single_ret == IRQ_HANDLED) 2683 ret = IRQ_HANDLED; 2684 } 2685 if (pending & INTR_EN_MAC6) { 2686 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 6); 2687 if (single_ret == IRQ_HANDLED) 2688 ret = IRQ_HANDLED; 2689 } 2690 if (pending & INTR_EN_MAC7) { 2691 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 7); 2692 if (single_ret == IRQ_HANDLED) 2693 ret = IRQ_HANDLED; 2694 } 2695 if (pending & INTR_EN_MAC8) { 2696 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 8); 2697 if (single_ret == IRQ_HANDLED) 2698 ret = IRQ_HANDLED; 2699 } 2700 if (pending & INTR_EN_MAC9) { 2701 single_ret = call_mac_isr(fman, FMAN_EV_MAC0 + 9); 2702 if (single_ret == IRQ_HANDLED) 2703 ret = IRQ_HANDLED; 2704 } 2705 2706 return ret; 2707 } 2708 2709 static const struct of_device_id fman_muram_match[] = { 2710 { 2711 .compatible = "fsl,fman-muram"}, 2712 {} 2713 }; 2714 MODULE_DEVICE_TABLE(of, fman_muram_match); 2715 2716 static struct fman *read_dts_node(struct platform_device *of_dev) 2717 { 2718 struct fman *fman; 2719 struct device_node *fm_node, *muram_node; 2720 struct resource *res; 2721 u32 val, range[2]; 2722 int err, irq; 2723 struct clk *clk; 2724 u32 clk_rate; 2725 phys_addr_t phys_base_addr; 2726 resource_size_t mem_size; 2727 2728 fman = kzalloc(sizeof(*fman), GFP_KERNEL); 2729 if (!fman) 2730 return NULL; 2731 2732 fm_node = of_node_get(of_dev->dev.of_node); 2733 2734 err = of_property_read_u32(fm_node, "cell-index", &val); 2735 if (err) { 2736 dev_err(&of_dev->dev, "%s: failed to read cell-index for %pOF\n", 2737 __func__, fm_node); 2738 goto fman_node_put; 2739 } 2740 fman->dts_params.id = (u8)val; 2741 2742 /* Get the FM interrupt */ 2743 res = platform_get_resource(of_dev, IORESOURCE_IRQ, 0); 2744 if (!res) { 2745 dev_err(&of_dev->dev, "%s: Can't get FMan IRQ resource\n", 2746 __func__); 2747 goto fman_node_put; 2748 } 2749 irq = res->start; 2750 2751 /* Get the FM error interrupt */ 2752 res = platform_get_resource(of_dev, IORESOURCE_IRQ, 1); 2753 if (!res) { 2754 dev_err(&of_dev->dev, "%s: Can't get FMan Error IRQ resource\n", 2755 __func__); 2756 goto fman_node_put; 2757 } 2758 fman->dts_params.err_irq = res->start; 2759 2760 /* Get the FM address */ 2761 res = platform_get_resource(of_dev, IORESOURCE_MEM, 0); 2762 if (!res) { 2763 dev_err(&of_dev->dev, "%s: Can't get FMan memory resource\n", 2764 __func__); 2765 goto fman_node_put; 2766 } 2767 2768 phys_base_addr = res->start; 2769 mem_size = resource_size(res); 2770 2771 clk = of_clk_get(fm_node, 0); 2772 if (IS_ERR(clk)) { 2773 dev_err(&of_dev->dev, "%s: Failed to get FM%d clock structure\n", 2774 __func__, fman->dts_params.id); 2775 goto fman_node_put; 2776 } 2777 2778 clk_rate = clk_get_rate(clk); 2779 if (!clk_rate) { 2780 dev_err(&of_dev->dev, "%s: Failed to determine FM%d clock rate\n", 2781 __func__, fman->dts_params.id); 2782 goto fman_node_put; 2783 } 2784 /* Rounding to MHz */ 2785 fman->dts_params.clk_freq = DIV_ROUND_UP(clk_rate, 1000000); 2786 2787 err = of_property_read_u32_array(fm_node, "fsl,qman-channel-range", 2788 &range[0], 2); 2789 if (err) { 2790 dev_err(&of_dev->dev, "%s: failed to read fsl,qman-channel-range for %pOF\n", 2791 __func__, fm_node); 2792 goto fman_node_put; 2793 } 2794 fman->dts_params.qman_channel_base = range[0]; 2795 fman->dts_params.num_of_qman_channels = range[1]; 2796 2797 /* Get the MURAM base address and size */ 2798 muram_node = of_find_matching_node(fm_node, fman_muram_match); 2799 if (!muram_node) { 2800 dev_err(&of_dev->dev, "%s: could not find MURAM node\n", 2801 __func__); 2802 goto fman_free; 2803 } 2804 2805 err = of_address_to_resource(muram_node, 0, 2806 &fman->dts_params.muram_res); 2807 if (err) { 2808 of_node_put(muram_node); 2809 dev_err(&of_dev->dev, "%s: of_address_to_resource() = %d\n", 2810 __func__, err); 2811 goto fman_free; 2812 } 2813 2814 of_node_put(muram_node); 2815 2816 err = devm_request_irq(&of_dev->dev, irq, fman_irq, IRQF_SHARED, 2817 "fman", fman); 2818 if (err < 0) { 2819 dev_err(&of_dev->dev, "%s: irq %d allocation failed (error = %d)\n", 2820 __func__, irq, err); 2821 goto fman_free; 2822 } 2823 2824 if (fman->dts_params.err_irq != 0) { 2825 err = devm_request_irq(&of_dev->dev, fman->dts_params.err_irq, 2826 fman_err_irq, IRQF_SHARED, 2827 "fman-err", fman); 2828 if (err < 0) { 2829 dev_err(&of_dev->dev, "%s: irq %d allocation failed (error = %d)\n", 2830 __func__, fman->dts_params.err_irq, err); 2831 goto fman_free; 2832 } 2833 } 2834 2835 fman->dts_params.res = 2836 devm_request_mem_region(&of_dev->dev, phys_base_addr, 2837 mem_size, "fman"); 2838 if (!fman->dts_params.res) { 2839 dev_err(&of_dev->dev, "%s: request_mem_region() failed\n", 2840 __func__); 2841 goto fman_free; 2842 } 2843 2844 fman->dts_params.base_addr = 2845 devm_ioremap(&of_dev->dev, phys_base_addr, mem_size); 2846 if (!fman->dts_params.base_addr) { 2847 dev_err(&of_dev->dev, "%s: devm_ioremap() failed\n", __func__); 2848 goto fman_free; 2849 } 2850 2851 fman->dev = &of_dev->dev; 2852 2853 err = of_platform_populate(fm_node, NULL, NULL, &of_dev->dev); 2854 if (err) { 2855 dev_err(&of_dev->dev, "%s: of_platform_populate() failed\n", 2856 __func__); 2857 goto fman_free; 2858 } 2859 2860 #ifdef CONFIG_DPAA_ERRATUM_A050385 2861 fman_has_err_a050385 = 2862 of_property_read_bool(fm_node, "fsl,erratum-a050385"); 2863 #endif 2864 2865 return fman; 2866 2867 fman_node_put: 2868 of_node_put(fm_node); 2869 fman_free: 2870 kfree(fman); 2871 return NULL; 2872 } 2873 2874 static int fman_probe(struct platform_device *of_dev) 2875 { 2876 struct fman *fman; 2877 struct device *dev; 2878 int err; 2879 2880 dev = &of_dev->dev; 2881 2882 fman = read_dts_node(of_dev); 2883 if (!fman) 2884 return -EIO; 2885 2886 err = fman_config(fman); 2887 if (err) { 2888 dev_err(dev, "%s: FMan config failed\n", __func__); 2889 return -EINVAL; 2890 } 2891 2892 if (fman_init(fman) != 0) { 2893 dev_err(dev, "%s: FMan init failed\n", __func__); 2894 return -EINVAL; 2895 } 2896 2897 if (fman->dts_params.err_irq == 0) { 2898 fman_set_exception(fman, FMAN_EX_DMA_BUS_ERROR, false); 2899 fman_set_exception(fman, FMAN_EX_DMA_READ_ECC, false); 2900 fman_set_exception(fman, FMAN_EX_DMA_SYSTEM_WRITE_ECC, false); 2901 fman_set_exception(fman, FMAN_EX_DMA_FM_WRITE_ECC, false); 2902 fman_set_exception(fman, FMAN_EX_DMA_SINGLE_PORT_ECC, false); 2903 fman_set_exception(fman, FMAN_EX_FPM_STALL_ON_TASKS, false); 2904 fman_set_exception(fman, FMAN_EX_FPM_SINGLE_ECC, false); 2905 fman_set_exception(fman, FMAN_EX_FPM_DOUBLE_ECC, false); 2906 fman_set_exception(fman, FMAN_EX_QMI_SINGLE_ECC, false); 2907 fman_set_exception(fman, FMAN_EX_QMI_DOUBLE_ECC, false); 2908 fman_set_exception(fman, 2909 FMAN_EX_QMI_DEQ_FROM_UNKNOWN_PORTID, false); 2910 fman_set_exception(fman, FMAN_EX_BMI_LIST_RAM_ECC, false); 2911 fman_set_exception(fman, FMAN_EX_BMI_STORAGE_PROFILE_ECC, 2912 false); 2913 fman_set_exception(fman, FMAN_EX_BMI_STATISTICS_RAM_ECC, false); 2914 fman_set_exception(fman, FMAN_EX_BMI_DISPATCH_RAM_ECC, false); 2915 } 2916 2917 dev_set_drvdata(dev, fman); 2918 2919 dev_dbg(dev, "FMan%d probed\n", fman->dts_params.id); 2920 2921 return 0; 2922 } 2923 2924 static const struct of_device_id fman_match[] = { 2925 { 2926 .compatible = "fsl,fman"}, 2927 {} 2928 }; 2929 2930 MODULE_DEVICE_TABLE(of, fman_match); 2931 2932 static struct platform_driver fman_driver = { 2933 .driver = { 2934 .name = "fsl-fman", 2935 .of_match_table = fman_match, 2936 }, 2937 .probe = fman_probe, 2938 }; 2939 2940 static int __init fman_load(void) 2941 { 2942 int err; 2943 2944 pr_debug("FSL DPAA FMan driver\n"); 2945 2946 err = platform_driver_register(&fman_driver); 2947 if (err < 0) 2948 pr_err("Error, platform_driver_register() = %d\n", err); 2949 2950 return err; 2951 } 2952 module_init(fman_load); 2953 2954 static void __exit fman_unload(void) 2955 { 2956 platform_driver_unregister(&fman_driver); 2957 } 2958 module_exit(fman_unload); 2959 2960 MODULE_LICENSE("Dual BSD/GPL"); 2961 MODULE_DESCRIPTION("Freescale DPAA Frame Manager driver"); 2962