Hi Boris, First bad commit (maybe != root cause): tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: 756623e2f190038a96e780f5f07990a065ebf2b9 commit: 4541b62447f9a65c9192597304d5f6cd11664386 [1/13] mtd: spi-nor: Prepare core / manufacturer code split config: i386-randconfig-s001-20210114 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-208-g46a52ca4-dirty # https://github.com/intel/linux-intel-lts/commit/4541b62447f9a65c919259730... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout 4541b62447f9a65c9192597304d5f6cd11664386 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/mtd/spi-nor/core.c:3837:27: sparse: sparse: cast to restricted __le32 drivers/mtd/spi-nor/core.c:3931:29: sparse: sparse: cast to restricted __le32 drivers/mtd/spi-nor/core.c:4071:13: sparse: sparse: cast to restricted __le32 vim +3383 drivers/mtd/spi-nor/core.c 2aaa5f7e0c07a0f1 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2018-12-06 3324 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3325 /** f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3326 * spi_nor_parse_bfpt() - read and parse the Basic Flash Parameter Table. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3327 * @nor: pointer to a 'struct spi_nor' f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3328 * @bfpt_header: pointer to the 'struct sfdp_parameter_header' describing f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3329 * the Basic Flash Parameter Table length and version f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3330 * @params: pointer to the 'struct spi_nor_flash_parameter' to be f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3331 * filled f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3332 * f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3333 * The Basic Flash Parameter Table is the main and only mandatory table as f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3334 * defined by the SFDP (JESD216) specification. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3335 * It provides us with the total size (memory density) of the data array and f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3336 * the number of address bytes for Fast Read, Page Program and Sector Erase f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3337 * commands. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3338 * For Fast READ commands, it also gives the number of mode clock cycles and f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3339 * wait states (regrouped in the number of dummy clock cycles) for each f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3340 * supported instruction op code. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3341 * For Page Program, the page size is now available since JESD216 rev A, however f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3342 * the supported instruction op codes are still not provided. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3343 * For Sector Erase commands, this table stores the supported instruction op f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3344 * codes and the associated sector sizes. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3345 * Finally, the Quad Enable Requirements (QER) are also available since JESD216 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3346 * rev A. The QER bits encode the manufacturer dependent procedure to be f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3347 * executed to set the Quad Enable (QE) bit in some internal register of the f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3348 * Quad SPI memory. Indeed the QE bit, when it exists, must be set before f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3349 * sending any Quad SPI command to the memory. Actually, setting the QE bit f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3350 * tells the memory to reassign its WP# and HOLD#/RESET# pins to functions IO2 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3351 * and IO3 hence enabling 4 (Quad) I/O lines. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3352 * f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3353 * Return: 0 on success, -errno otherwise. f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3354 */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3355 static int spi_nor_parse_bfpt(struct spi_nor *nor, f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3356 const struct sfdp_parameter_header *bfpt_header, f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3357 struct spi_nor_flash_parameter *params) f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3358 { c46872170a54c902 drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2019-08-23 3359 struct spi_nor_erase_map *map = &params->erase_map; 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3360 struct spi_nor_erase_type *erase_type = map->erase_type; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3361 struct sfdp_bfpt bfpt; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3362 size_t len; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3363 int i, cmd, err; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3364 u32 addr; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3365 u16 half; 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3366 u8 erase_mask; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3367 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3368 /* JESD216 Basic Flash Parameter Table length is at least 9 DWORDs. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3369 if (bfpt_header->length < BFPT_DWORD_MAX_JESD216) f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3370 return -EINVAL; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3371 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3372 /* Read the Basic Flash Parameter Table. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3373 len = min_t(size_t, sizeof(bfpt), f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3374 bfpt_header->length * sizeof(u32)); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3375 addr = SFDP_PARAM_HEADER_PTP(bfpt_header); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3376 memset(&bfpt, 0, sizeof(bfpt)); bfa4133795e5a0ba drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-09-06 3377 err = spi_nor_read_sfdp_dma_unsafe(nor, addr, len, &bfpt); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3378 if (err < 0) f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3379 return err; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3380 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3381 /* Fix endianness of the BFPT DWORDs. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3382 for (i = 0; i < BFPT_DWORD_MAX; i++) f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 @3383 bfpt.dwords[i] = le32_to_cpu(bfpt.dwords[i]); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3384 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3385 /* Number of address bytes. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3386 switch (bfpt.dwords[BFPT_DWORD(1)] & BFPT_DWORD1_ADDRESS_BYTES_MASK) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3387 case BFPT_DWORD1_ADDRESS_BYTES_3_ONLY: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3388 nor->addr_width = 3; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3389 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3390 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3391 case BFPT_DWORD1_ADDRESS_BYTES_4_ONLY: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3392 nor->addr_width = 4; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3393 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3394 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3395 default: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3396 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3397 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3398 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3399 /* Flash Memory Density (in bits). */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3400 params->size = bfpt.dwords[BFPT_DWORD(2)]; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3401 if (params->size & BIT(31)) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3402 params->size &= ~BIT(31); b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3403 b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3404 /* b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3405 * Prevent overflows on params->size. Anyway, a NOR of 2^64 b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3406 * bits is unlikely to exist so this error probably means b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3407 * the BFPT we are reading is corrupted/wrong. b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3408 */ b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3409 if (params->size > 63) b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3410 return -EINVAL; b8f3911610529ba5 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2017-09-12 3411 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3412 params->size = 1ULL << params->size; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3413 } else { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3414 params->size++; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3415 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3416 params->size >>= 3; /* Convert to bytes. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3417 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3418 /* Fast Read settings. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3419 for (i = 0; i < ARRAY_SIZE(sfdp_bfpt_reads); i++) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3420 const struct sfdp_bfpt_read *rd = &sfdp_bfpt_reads[i]; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3421 struct spi_nor_read_command *read; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3422 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3423 if (!(bfpt.dwords[rd->supported_dword] & rd->supported_bit)) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3424 params->hwcaps.mask &= ~rd->hwcaps; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3425 continue; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3426 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3427 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3428 params->hwcaps.mask |= rd->hwcaps; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3429 cmd = spi_nor_hwcaps_read2cmd(rd->hwcaps); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3430 read = &params->reads[cmd]; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3431 half = bfpt.dwords[rd->settings_dword] >> rd->settings_shift; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3432 spi_nor_set_read_settings_from_bfpt(read, half, rd->proto); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3433 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3434 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3435 /* 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3436 * Sector Erase settings. Reinitialize the uniform erase map using the 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3437 * Erase Types defined in the bfpt table. 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3438 */ 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3439 erase_mask = 0; c46872170a54c902 drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2019-08-23 3440 memset(&params->erase_map, 0, sizeof(params->erase_map)); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3441 for (i = 0; i < ARRAY_SIZE(sfdp_bfpt_erases); i++) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3442 const struct sfdp_bfpt_erase *er = &sfdp_bfpt_erases[i]; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3443 u32 erasesize; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3444 u8 opcode; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3445 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3446 half = bfpt.dwords[er->dword] >> er->shift; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3447 erasesize = half & 0xff; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3448 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3449 /* erasesize == 0 means this Erase Type is not supported. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3450 if (!erasesize) f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3451 continue; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3452 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3453 erasesize = 1U << erasesize; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3454 opcode = (half >> 8) & 0xff; 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3455 erase_mask |= BIT(i); 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3456 spi_nor_set_erase_settings_from_bfpt(&erase_type[i], erasesize, 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3457 opcode, i); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3458 } 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3459 spi_nor_init_uniform_erase_map(map, erase_mask, params->size); 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3460 /* 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3461 * Sort all the map's Erase Types in ascending order with the smallest 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3462 * erase size being the first member in the erase_type array. 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3463 */ 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3464 sort(erase_type, SNOR_ERASE_TYPE_MAX, sizeof(erase_type[0]), 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3465 spi_nor_map_cmp_erase_type, NULL); 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3466 /* 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3467 * Sort the erase types in the uniform region in order to update the 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3468 * uniform_erase_type bitmask. The bitmask will be used later on when 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3469 * selecting the uniform erase. 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3470 */ 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3471 spi_nor_regions_sort_erase_types(map); 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3472 map->uniform_erase_type = map->uniform_region.offset & 5390a8df769ec9ba drivers/mtd/spi-nor/spi-nor.c Tudor Ambarus 2018-09-11 3473 SNOR_ERASE_TYPE_MASK; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3474 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3475 /* Stop here if not JESD216 rev A or later. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3476 if (bfpt_header->length < BFPT_DWORD_MAX) 2aaa5f7e0c07a0f1 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2018-12-06 3477 return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt, 2aaa5f7e0c07a0f1 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2018-12-06 3478 params); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3479 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3480 /* Page size: this field specifies 'N' so the page size = 2^N bytes. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3481 params->page_size = bfpt.dwords[BFPT_DWORD(11)]; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3482 params->page_size &= BFPT_DWORD11_PAGE_SIZE_MASK; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3483 params->page_size >>= BFPT_DWORD11_PAGE_SIZE_SHIFT; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3484 params->page_size = 1U << params->page_size; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3485 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3486 /* Quad Enable Requirements. */ f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3487 switch (bfpt.dwords[BFPT_DWORD(15)] & BFPT_DWORD15_QER_MASK) { f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3488 case BFPT_DWORD15_QER_NONE: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3489 params->quad_enable = NULL; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3490 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3491 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3492 case BFPT_DWORD15_QER_SR2_BIT1_BUGGY: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3493 case BFPT_DWORD15_QER_SR2_BIT1_NO_RD: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3494 params->quad_enable = spansion_no_read_cr_quad_enable; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3495 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3496 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3497 case BFPT_DWORD15_QER_SR1_BIT6: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3498 params->quad_enable = macronix_quad_enable; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3499 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3500 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3501 case BFPT_DWORD15_QER_SR2_BIT7: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3502 params->quad_enable = sr2_bit7_quad_enable; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3503 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3504 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3505 case BFPT_DWORD15_QER_SR2_BIT1: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3506 params->quad_enable = spansion_read_cr_quad_enable; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3507 break; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3508 f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3509 default: f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3510 return -EINVAL; f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3511 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3512 2aaa5f7e0c07a0f1 drivers/mtd/spi-nor/spi-nor.c Boris Brezillon 2018-12-06 3513 return spi_nor_post_bfpt_fixups(nor, bfpt_header, &bfpt, params); f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3514 } f384b352cbf0310f drivers/mtd/spi-nor/spi-nor.c Cyrille Pitchen 2017-06-26 3515 :::::: The code at line 3383 was first introduced by commit :::::: f384b352cbf0310fd20c379c4710408c70e769b6 mtd: spi-nor: parse Serial Flash Discoverable Parameters (SFDP) tables :::::: TO: Cyrille Pitchen <cyrille.pitchen(a)microchip.com&gt; :::::: CC: Cyrille Pitchen <cyrille.pitchen(a)wedev4u.fr&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org