Lines Matching +full:dma +full:- +full:safe +full:- +full:map
1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/mtd/spi-nor.h>
14 #define SFDP_PARAM_HEADER_ID(p) (((p)->id_msb << 8) | (p)->id_lsb)
16 (((p)->parameter_table_pointer[2] << 16) | \
17 ((p)->parameter_table_pointer[1] << 8) | \
18 ((p)->parameter_table_pointer[0] << 0))
19 #define SFDP_PARAM_HEADER_PARAM_LEN(p) ((p)->length * 4)
22 #define SFDP_SECTOR_MAP_ID 0xff81 /* Sector Map Table */
23 #define SFDP_4BAIT_ID 0xff84 /* 4-byte Address Instruction Table */
27 * Register Map.
31 * Register Map Offsets for Multi-Chip
41 u8 nph; /* 0-base number of parameter headers */
50 /* The Fast Read x-y-z hardware capability in params->hwcaps.mask. */
55 * whether the Fast Read x-y-z command is supported.
61 * The half-word at offset <setting_shift> in <setting_dword> BFPT DWORD
63 * states to be used by Fast Read x-y-z command.
68 /* The SPI protocol for this Fast Read x-y-z command. */
74 * The half-word at offset <shift> in DWORD <dword> encodes the
135 * the associated 4-byte address op code is supported.
141 * spi_nor_read_raw() - raw read of serial flash memory. read_opcode,
147 * @buf: buffer where the data is copied into (dma-safe memory)
149 * Return: 0 on success, -errno otherwise.
160 return -EIO; in spi_nor_read_raw()
164 len -= ret; in spi_nor_read_raw()
170 * spi_nor_read_sfdp() - read Serial Flash Discoverable Parameters.
174 * @buf: buffer where the SFDP data are copied into (dma-safe memory)
178 * followed by a 3-byte address and 8 dummy clock cycles.
180 * Return: 0 on success, -errno otherwise.
188 read_opcode = nor->read_opcode; in spi_nor_read_sfdp()
189 addr_nbytes = nor->addr_nbytes; in spi_nor_read_sfdp()
190 read_dummy = nor->read_dummy; in spi_nor_read_sfdp()
192 nor->read_opcode = SPINOR_OP_RDSFDP; in spi_nor_read_sfdp()
193 nor->addr_nbytes = 3; in spi_nor_read_sfdp()
194 nor->read_dummy = 8; in spi_nor_read_sfdp()
198 nor->read_opcode = read_opcode; in spi_nor_read_sfdp()
199 nor->addr_nbytes = addr_nbytes; in spi_nor_read_sfdp()
200 nor->read_dummy = read_dummy; in spi_nor_read_sfdp()
206 * spi_nor_read_sfdp_dma_unsafe() - read Serial Flash Discoverable Parameters.
213 * guaranteed to be dma-safe.
215 * Return: -ENOMEM if kmalloc() fails, the return code of spi_nor_read_sfdp()
226 return -ENOMEM; in spi_nor_read_sfdp_dma_unsafe()
240 read->num_mode_clocks = (half >> 5) & 0x07; in spi_nor_set_read_settings_from_bfpt()
241 read->num_wait_states = (half >> 0) & 0x1f; in spi_nor_set_read_settings_from_bfpt()
242 read->opcode = (half >> 8) & 0xff; in spi_nor_set_read_settings_from_bfpt()
243 read->proto = proto; in spi_nor_set_read_settings_from_bfpt()
247 /* Fast Read 1-1-2 */
255 /* Fast Read 1-2-2 */
263 /* Fast Read 2-2-2 */
271 /* Fast Read 1-1-4 */
279 /* Fast Read 1-4-4 */
287 /* Fast Read 4-4-4 */
311 * spi_nor_set_erase_settings_from_bfpt() - set erase type settings from BFPT
327 erase->idx = i; in spi_nor_set_erase_settings_from_bfpt()
332 * spi_nor_map_cmp_erase_type() - compare the map's erase types by size
333 * @l: member in the left half of the map's erase_type array
334 * @r: member in the right half of the map's erase_type array
337 * map's erase types, the smallest erase type size being the first member in the
340 * Return: the result of @l->size - @r->size
346 return left->size - right->size; in spi_nor_map_cmp_erase_type()
350 * spi_nor_sort_erase_mask() - sort erase mask
351 * @map: the erase map of the SPI NOR
354 * Replicate the sort done for the map's erase types in BFPT: sort the erase
360 static u8 spi_nor_sort_erase_mask(struct spi_nor_erase_map *map, u8 erase_mask) in spi_nor_sort_erase_mask() argument
362 struct spi_nor_erase_type *erase_type = map->erase_type; in spi_nor_sort_erase_mask()
369 /* Replicate the sort done for the map's erase types. */ in spi_nor_sort_erase_mask()
378 * spi_nor_regions_sort_erase_types() - sort erase types in each region
379 * @map: the erase map of the SPI NOR
381 * Function assumes that the erase types defined in the erase map are already
383 * member in the erase_type array. It replicates the sort done for the map's
385 * supported from the sorted erase types defined in the erase map.
389 static void spi_nor_regions_sort_erase_types(struct spi_nor_erase_map *map) in spi_nor_regions_sort_erase_types() argument
391 struct spi_nor_erase_region *region = map->regions; in spi_nor_regions_sort_erase_types()
395 for (i = 0; i < map->n_regions; i++) { in spi_nor_regions_sort_erase_types()
397 spi_nor_sort_erase_mask(map, region[i].erase_mask); in spi_nor_regions_sort_erase_types()
405 * spi_nor_parse_bfpt() - read and parse the Basic Flash Parameter Table.
430 * Return: 0 on success, -errno otherwise.
435 struct spi_nor_flash_parameter *params = nor->params; in spi_nor_parse_bfpt()
436 struct spi_nor_erase_map *map = ¶ms->erase_map; in spi_nor_parse_bfpt() local
437 struct spi_nor_erase_type *erase_type = map->erase_type; in spi_nor_parse_bfpt()
448 if (bfpt_header->length < BFPT_DWORD_MAX_JESD216) in spi_nor_parse_bfpt()
449 return -EINVAL; in spi_nor_parse_bfpt()
453 bfpt_header->length * sizeof(u32)); in spi_nor_parse_bfpt()
467 params->addr_nbytes = 3; in spi_nor_parse_bfpt()
468 params->addr_mode_nbytes = 3; in spi_nor_parse_bfpt()
472 params->addr_nbytes = 4; in spi_nor_parse_bfpt()
473 params->addr_mode_nbytes = 4; in spi_nor_parse_bfpt()
486 * Prevent overflows on params->size. Anyway, a NOR of 2^64 in spi_nor_parse_bfpt()
491 return -EINVAL; in spi_nor_parse_bfpt()
493 params->size = 1ULL << val; in spi_nor_parse_bfpt()
495 params->size = val + 1; in spi_nor_parse_bfpt()
497 params->size >>= 3; /* Convert to bytes. */ in spi_nor_parse_bfpt()
504 if (!(bfpt.dwords[rd->supported_dword] & rd->supported_bit)) { in spi_nor_parse_bfpt()
505 params->hwcaps.mask &= ~rd->hwcaps; in spi_nor_parse_bfpt()
509 params->hwcaps.mask |= rd->hwcaps; in spi_nor_parse_bfpt()
510 cmd = spi_nor_hwcaps_read2cmd(rd->hwcaps); in spi_nor_parse_bfpt()
511 read = ¶ms->reads[cmd]; in spi_nor_parse_bfpt()
512 half = bfpt.dwords[rd->settings_dword] >> rd->settings_shift; in spi_nor_parse_bfpt()
513 spi_nor_set_read_settings_from_bfpt(read, half, rd->proto); in spi_nor_parse_bfpt()
517 * Sector Erase settings. Reinitialize the uniform erase map using the in spi_nor_parse_bfpt()
521 memset(¶ms->erase_map, 0, sizeof(params->erase_map)); in spi_nor_parse_bfpt()
527 half = bfpt.dwords[er->dword] >> er->shift; in spi_nor_parse_bfpt()
540 spi_nor_init_uniform_erase_map(map, erase_mask, params->size); in spi_nor_parse_bfpt()
542 * Sort all the map's Erase Types in ascending order with the smallest in spi_nor_parse_bfpt()
552 spi_nor_regions_sort_erase_types(map); in spi_nor_parse_bfpt()
555 if (bfpt_header->length == BFPT_DWORD_MAX_JESD216) in spi_nor_parse_bfpt()
562 params->page_size = 1U << val; in spi_nor_parse_bfpt()
567 params->quad_enable = NULL; in spi_nor_parse_bfpt()
573 * side-effect of clearing Status Register 2. in spi_nor_parse_bfpt()
580 nor->flags |= SNOR_F_HAS_16BIT_SR | SNOR_F_NO_READ_CR; in spi_nor_parse_bfpt()
581 params->quad_enable = spi_nor_sr2_bit1_quad_enable; in spi_nor_parse_bfpt()
585 nor->flags &= ~SNOR_F_HAS_16BIT_SR; in spi_nor_parse_bfpt()
586 params->quad_enable = spi_nor_sr1_bit6_quad_enable; in spi_nor_parse_bfpt()
590 nor->flags &= ~SNOR_F_HAS_16BIT_SR; in spi_nor_parse_bfpt()
591 params->quad_enable = spi_nor_sr2_bit7_quad_enable; in spi_nor_parse_bfpt()
599 * assumption of a 16-bit Write Status (01h) command. in spi_nor_parse_bfpt()
601 nor->flags |= SNOR_F_HAS_16BIT_SR; in spi_nor_parse_bfpt()
603 params->quad_enable = spi_nor_sr2_bit1_quad_enable; in spi_nor_parse_bfpt()
607 dev_dbg(nor->dev, "BFPT QER reserved value used\n"); in spi_nor_parse_bfpt()
613 params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode_brwr; in spi_nor_parse_bfpt()
615 params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode_wren_en4b_ex4b; in spi_nor_parse_bfpt()
617 params->set_4byte_addr_mode = spi_nor_set_4byte_addr_mode_en4b_ex4b; in spi_nor_parse_bfpt()
619 dev_dbg(nor->dev, "BFPT: 4-Byte Address Mode method is not recognized or not implemented\n"); in spi_nor_parse_bfpt()
623 nor->flags |= SNOR_F_SOFT_RESET; in spi_nor_parse_bfpt()
626 if (bfpt_header->length == BFPT_DWORD_MAX_JESD216B) in spi_nor_parse_bfpt()
629 /* Parse 1-1-8 read instruction */ in spi_nor_parse_bfpt()
636 params->hwcaps.mask |= SNOR_HWCAPS_READ_1_1_8; in spi_nor_parse_bfpt()
637 spi_nor_set_read_settings(¶ms->reads[SNOR_CMD_READ_1_1_8], in spi_nor_parse_bfpt()
642 /* Parse 1-8-8 read instruction */ in spi_nor_parse_bfpt()
649 params->hwcaps.mask |= SNOR_HWCAPS_READ_1_8_8; in spi_nor_parse_bfpt()
650 spi_nor_set_read_settings(¶ms->reads[SNOR_CMD_READ_1_8_8], in spi_nor_parse_bfpt()
655 /* 8D-8D-8D command extension. */ in spi_nor_parse_bfpt()
658 nor->cmd_ext_type = SPI_NOR_EXT_REPEAT; in spi_nor_parse_bfpt()
662 nor->cmd_ext_type = SPI_NOR_EXT_INVERT; in spi_nor_parse_bfpt()
666 dev_dbg(nor->dev, "Reserved command extension used\n"); in spi_nor_parse_bfpt()
670 dev_dbg(nor->dev, "16-bit opcodes not supported\n"); in spi_nor_parse_bfpt()
671 return -EOPNOTSUPP; in spi_nor_parse_bfpt()
674 /* Byte order in 8D-8D-8D mode */ in spi_nor_parse_bfpt()
676 nor->flags |= SNOR_F_SWAP16; in spi_nor_parse_bfpt()
682 * spi_nor_smpt_addr_nbytes() - return the number of address bytes used in the
698 return nor->params->addr_mode_nbytes; in spi_nor_smpt_addr_nbytes()
703 * spi_nor_smpt_read_dummy() - return the configuration detection command read
715 return nor->read_dummy; in spi_nor_smpt_read_dummy()
720 * spi_nor_get_map_in_use() - get the configuration map in use
722 * @smpt: pointer to the sector map parameter table
723 * @smpt_len: sector map parameter table length
725 * Return: pointer to the map in use, ERR_PTR(-errno) otherwise.
738 /* Use a kmalloc'ed bounce buffer to guarantee it is DMA-able. */ in spi_nor_get_map_in_use()
741 return ERR_PTR(-ENOMEM); in spi_nor_get_map_in_use()
743 addr_nbytes = nor->addr_nbytes; in spi_nor_get_map_in_use()
744 read_dummy = nor->read_dummy; in spi_nor_get_map_in_use()
745 read_opcode = nor->read_opcode; in spi_nor_get_map_in_use()
754 nor->addr_nbytes = spi_nor_smpt_addr_nbytes(nor, smpt[i]); in spi_nor_get_map_in_use()
755 nor->read_dummy = spi_nor_smpt_read_dummy(nor, smpt[i]); in spi_nor_get_map_in_use()
756 nor->read_opcode = SMPT_CMD_OPCODE(smpt[i]); in spi_nor_get_map_in_use()
766 * Build an index value that is used to select the Sector Map in spi_nor_get_map_in_use()
773 * If command descriptors are provided, they always precede map in spi_nor_get_map_in_use()
777 * Find the matching configuration map. in spi_nor_get_map_in_use()
779 ret = ERR_PTR(-EINVAL); in spi_nor_get_map_in_use()
787 * If there are no more configuration map descriptors and no in spi_nor_get_map_in_use()
789 * sector address map is unknown. in spi_nor_get_map_in_use()
794 /* increment the table index to the next map */ in spi_nor_get_map_in_use()
801 nor->addr_nbytes = addr_nbytes; in spi_nor_get_map_in_use()
802 nor->read_dummy = read_dummy; in spi_nor_get_map_in_use()
803 nor->read_opcode = read_opcode; in spi_nor_get_map_in_use()
808 * spi_nor_region_check_overlay() - set overlay bit when the region is overlaid
823 if (region->size & erase[i].size_mask) { in spi_nor_region_check_overlay()
824 region->overlaid = true; in spi_nor_region_check_overlay()
831 * spi_nor_init_non_uniform_erase_map() - initialize the non-uniform erase map
833 * @smpt: pointer to the sector map parameter table
835 * Return: 0 on success, -errno otherwise.
840 struct spi_nor_erase_map *map = &nor->params->erase_map; in spi_nor_init_non_uniform_erase_map() local
841 struct spi_nor_erase_type *erase = map->erase_type; in spi_nor_init_non_uniform_erase_map()
854 region = devm_kcalloc(nor->dev, region_count, sizeof(*region), in spi_nor_init_non_uniform_erase_map()
857 return -ENOMEM; in spi_nor_init_non_uniform_erase_map()
858 map->regions = region; in spi_nor_init_non_uniform_erase_map()
859 map->n_regions = region_count; in spi_nor_init_non_uniform_erase_map()
882 * supported in this configuration map. in spi_nor_init_non_uniform_erase_map()
889 save_uniform_erase_type = map->uniform_region.erase_mask; in spi_nor_init_non_uniform_erase_map()
890 map->uniform_region.erase_mask = in spi_nor_init_non_uniform_erase_map()
891 spi_nor_sort_erase_mask(map, in spi_nor_init_non_uniform_erase_map()
899 map->uniform_region.erase_mask = save_uniform_erase_type; in spi_nor_init_non_uniform_erase_map()
900 return -EINVAL; in spi_nor_init_non_uniform_erase_map()
905 * map configurations. Mask out the erase types that are not supported in spi_nor_init_non_uniform_erase_map()
906 * by the current map configuration. in spi_nor_init_non_uniform_erase_map()
916 * spi_nor_parse_smpt() - parse Sector Map Parameter Table
918 * @smpt_header: sector map parameter table header
924 * Return: 0 on success, -errno otherwise.
935 /* Read the Sector Map Parameter Table. */ in spi_nor_parse_smpt()
936 len = smpt_header->length * sizeof(*smpt); in spi_nor_parse_smpt()
939 return -ENOMEM; in spi_nor_parse_smpt()
947 le32_to_cpu_array(smpt, smpt_header->length); in spi_nor_parse_smpt()
949 sector_map = spi_nor_get_map_in_use(nor, smpt, smpt_header->length); in spi_nor_parse_smpt()
959 spi_nor_regions_sort_erase_types(&nor->params->erase_map); in spi_nor_parse_smpt()
967 * spi_nor_parse_4bait() - parse the 4-Byte Address Instruction Table
970 * the 4-Byte Address Instruction Table length and version.
972 * Return: 0 on success, -errno otherwise.
1001 struct spi_nor_flash_parameter *params = nor->params; in spi_nor_parse_4bait()
1002 struct spi_nor_pp_command *params_pp = params->page_programs; in spi_nor_parse_4bait()
1003 struct spi_nor_erase_map *map = ¶ms->erase_map; in spi_nor_parse_4bait() local
1004 struct spi_nor_erase_type *erase_type = map->erase_type; in spi_nor_parse_4bait()
1010 if (param_header->major != SFDP_JESD216_MAJOR || in spi_nor_parse_4bait()
1011 param_header->length < SFDP_4BAIT_DWORD_MAX) in spi_nor_parse_4bait()
1012 return -EINVAL; in spi_nor_parse_4bait()
1014 /* Read the 4-byte Address Instruction Table. */ in spi_nor_parse_4bait()
1017 /* Use a kmalloc'ed bounce buffer to guarantee it is DMA-able. */ in spi_nor_parse_4bait()
1020 return -ENOMEM; in spi_nor_parse_4bait()
1031 * Compute the subset of (Fast) Read commands for which the 4-byte in spi_nor_parse_4bait()
1039 discard_hwcaps |= read->hwcaps; in spi_nor_parse_4bait()
1040 if ((params->hwcaps.mask & read->hwcaps) && in spi_nor_parse_4bait()
1041 (dwords[SFDP_DWORD(1)] & read->supported_bit)) in spi_nor_parse_4bait()
1042 read_hwcaps |= read->hwcaps; in spi_nor_parse_4bait()
1046 * Compute the subset of Page Program commands for which the 4-byte in spi_nor_parse_4bait()
1056 * Bypass the params->hwcaps.mask and consider 4BAIT the biggest in spi_nor_parse_4bait()
1059 discard_hwcaps |= program->hwcaps; in spi_nor_parse_4bait()
1060 if (dwords[SFDP_DWORD(1)] & program->supported_bit) in spi_nor_parse_4bait()
1061 pp_hwcaps |= program->hwcaps; in spi_nor_parse_4bait()
1065 * Compute the subset of Sector Erase commands for which the 4-byte in spi_nor_parse_4bait()
1072 if (dwords[SFDP_DWORD(1)] & erase->supported_bit) in spi_nor_parse_4bait()
1076 /* Replicate the sort done for the map's erase types in BFPT. */ in spi_nor_parse_4bait()
1077 erase_mask = spi_nor_sort_erase_mask(map, erase_mask); in spi_nor_parse_4bait()
1080 * We need at least one 4-byte op code per read, program and erase in spi_nor_parse_4bait()
1082 * nor->addr_nbytes value. in spi_nor_parse_4bait()
1088 * Discard all operations from the 4-byte instruction set which are in spi_nor_parse_4bait()
1091 params->hwcaps.mask &= ~discard_hwcaps; in spi_nor_parse_4bait()
1092 params->hwcaps.mask |= (read_hwcaps | pp_hwcaps); in spi_nor_parse_4bait()
1094 /* Use the 4-byte address instruction set. */ in spi_nor_parse_4bait()
1096 struct spi_nor_read_command *read_cmd = ¶ms->reads[i]; in spi_nor_parse_4bait()
1098 read_cmd->opcode = spi_nor_convert_3to4_read(read_cmd->opcode); in spi_nor_parse_4bait()
1136 params->addr_nbytes = 4; in spi_nor_parse_4bait()
1137 nor->flags |= SNOR_F_4B_OPCODES | SNOR_F_HAS_4BAIT; in spi_nor_parse_4bait()
1154 * spi_nor_parse_profile1() - parse the xSPI Profile 1.0 table
1159 * Return: 0 on success, -errno otherwise.
1169 len = profile1_header->length * sizeof(*dwords); in spi_nor_parse_profile1()
1172 return -ENOMEM; in spi_nor_parse_profile1()
1179 le32_to_cpu_array(dwords, profile1_header->length); in spi_nor_parse_profile1()
1181 /* Get 8D-8D-8D fast read opcode and dummy cycles. */ in spi_nor_parse_profile1()
1186 nor->params->rdsr_dummy = 8; in spi_nor_parse_profile1()
1188 nor->params->rdsr_dummy = 4; in spi_nor_parse_profile1()
1191 nor->params->rdsr_addr_nbytes = 4; in spi_nor_parse_profile1()
1193 nor->params->rdsr_addr_nbytes = 0; in spi_nor_parse_profile1()
1215 dev_dbg(nor->dev, in spi_nor_parse_profile1()
1222 nor->params->hwcaps.mask |= SNOR_HWCAPS_READ_8_8_8_DTR; in spi_nor_parse_profile1()
1223 spi_nor_set_read_settings(&nor->params->reads[SNOR_CMD_READ_8_8_8_DTR], in spi_nor_parse_profile1()
1229 * the params->hwcaps.mask here. in spi_nor_parse_profile1()
1231 nor->params->hwcaps.mask |= SNOR_HWCAPS_PP_8_8_8_DTR; in spi_nor_parse_profile1()
1241 * spi_nor_parse_sccr() - Parse the Status, Control and Configuration Register
1242 * Map.
1245 * the SCCR Map table length and version.
1247 * Return: 0 on success, -errno otherwise.
1252 struct spi_nor_flash_parameter *params = nor->params; in spi_nor_parse_sccr()
1257 len = sccr_header->length * sizeof(*dwords); in spi_nor_parse_sccr()
1260 return -ENOMEM; in spi_nor_parse_sccr()
1267 le32_to_cpu_array(dwords, sccr_header->length); in spi_nor_parse_sccr()
1270 if (!params->vreg_offset) { in spi_nor_parse_sccr()
1271 params->vreg_offset = devm_kmalloc(nor->dev, sizeof(*dwords), in spi_nor_parse_sccr()
1273 if (!params->vreg_offset) { in spi_nor_parse_sccr()
1274 ret = -ENOMEM; in spi_nor_parse_sccr()
1278 params->vreg_offset[0] = dwords[SFDP_DWORD(1)]; in spi_nor_parse_sccr()
1279 params->n_dice = 1; in spi_nor_parse_sccr()
1283 nor->flags |= SNOR_F_IO_MODE_EN_VOLATILE; in spi_nor_parse_sccr()
1291 * spi_nor_parse_sccr_mc() - Parse the Status, Control and Configuration
1292 * Register Map Offsets for Multi-Chip SPI Memory
1296 * the SCCR Map offsets table length and version.
1298 * Return: 0 on success, -errno otherwise.
1303 struct spi_nor_flash_parameter *params = nor->params; in spi_nor_parse_sccr_mc()
1309 len = sccr_mc_header->length * sizeof(*dwords); in spi_nor_parse_sccr_mc()
1312 return -ENOMEM; in spi_nor_parse_sccr_mc()
1319 le32_to_cpu_array(dwords, sccr_mc_header->length); in spi_nor_parse_sccr_mc()
1322 * Pair of DOWRDs (volatile and non-volatile register offsets) per in spi_nor_parse_sccr_mc()
1325 n_dice = 1 + sccr_mc_header->length / 2; in spi_nor_parse_sccr_mc()
1328 params->vreg_offset = in spi_nor_parse_sccr_mc()
1329 devm_krealloc(nor->dev, params->vreg_offset, in spi_nor_parse_sccr_mc()
1332 if (!params->vreg_offset) { in spi_nor_parse_sccr_mc()
1333 ret = -ENOMEM; in spi_nor_parse_sccr_mc()
1338 params->vreg_offset[i] = dwords[SFDP_DWORD(i) * 2]; in spi_nor_parse_sccr_mc()
1340 params->n_dice = n_dice; in spi_nor_parse_sccr_mc()
1348 * spi_nor_post_sfdp_fixups() - Updates the flash's parameters and settings
1360 if (nor->manufacturer && nor->manufacturer->fixups && in spi_nor_post_sfdp_fixups()
1361 nor->manufacturer->fixups->post_sfdp) { in spi_nor_post_sfdp_fixups()
1362 ret = nor->manufacturer->fixups->post_sfdp(nor); in spi_nor_post_sfdp_fixups()
1367 if (nor->info->fixups && nor->info->fixups->post_sfdp) in spi_nor_post_sfdp_fixups()
1368 return nor->info->fixups->post_sfdp(nor); in spi_nor_post_sfdp_fixups()
1374 * spi_nor_check_sfdp_signature() - check for a valid SFDP signature
1380 * Return: 0 on success, -errno otherwise.
1395 return -EINVAL; in spi_nor_check_sfdp_signature()
1401 * spi_nor_parse_sfdp() - parse the Serial Flash Discoverable Parameters.
1406 * (Q)SPI memory manufacturers. Those hard-coded tables allow us to learn at
1410 * Return: 0 on success, -errno otherwise.
1417 struct device *dev = nor->dev; in spi_nor_parse_sfdp()
1431 return -EINVAL; in spi_nor_parse_sfdp()
1439 bfpt_header->major != SFDP_JESD216_MAJOR) in spi_nor_parse_sfdp()
1440 return -EINVAL; in spi_nor_parse_sfdp()
1461 return -ENOMEM; in spi_nor_parse_sfdp()
1494 err = -ENOMEM; in spi_nor_parse_sfdp()
1504 sfdp->num_dwords = DIV_ROUND_UP(sfdp_size, sizeof(*sfdp->dwords)); in spi_nor_parse_sfdp()
1505 sfdp->dwords = devm_kcalloc(dev, sfdp->num_dwords, in spi_nor_parse_sfdp()
1506 sizeof(*sfdp->dwords), GFP_KERNEL); in spi_nor_parse_sfdp()
1507 if (!sfdp->dwords) { in spi_nor_parse_sfdp()
1508 err = -ENOMEM; in spi_nor_parse_sfdp()
1513 err = spi_nor_read_sfdp(nor, 0, sfdp_size, sfdp->dwords); in spi_nor_parse_sfdp()
1516 devm_kfree(dev, sfdp->dwords); in spi_nor_parse_sfdp()
1521 nor->sfdp = sfdp; in spi_nor_parse_sfdp()
1531 param_header->major == SFDP_JESD216_MAJOR && in spi_nor_parse_sfdp()
1532 (param_header->minor > bfpt_header->minor || in spi_nor_parse_sfdp()
1533 (param_header->minor == bfpt_header->minor && in spi_nor_parse_sfdp()
1534 param_header->length > bfpt_header->length))) in spi_nor_parse_sfdp()