| /kernel/linux/linux-5.10/Documentation/driver-api/mmc/ |
| D | mmc-dev-attrs.rst | 11 force_ro Enforce read-only access even if write protect switch is off.
17 All attributes are read-only.
34 erase_size Erase group size
35 preferred_erase_size Preferred erase size
36 raw_rpmb_size_mult RPMB partition size
45 Note on Erase Size and Preferred Erase Size:
47 "erase_size" is the minimum size, in bytes, of an erase
48 operation. For MMC, "erase_size" is the erase group size
50 to trim or secure trim operations where the minimum size is
52 if the card is block-addressed, 0 otherwise.
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| /kernel/linux/linux-6.6/Documentation/driver-api/mmc/ |
| D | mmc-dev-attrs.rst | 11 force_ro Enforce read-only access even if write protect switch is off.
17 All attributes are read-only.
34 erase_size Erase group size
35 preferred_erase_size Preferred erase size
36 raw_rpmb_size_mult RPMB partition size
45 Note on Erase Size and Preferred Erase Size:
47 "erase_size" is the minimum size, in bytes, of an erase
48 operation. For MMC, "erase_size" is the erase group size
50 to trim or secure trim operations where the minimum size is
52 if the card is block-addressed, 0 otherwise.
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| /kernel/linux/linux-5.10/drivers/mtd/spi-nor/ |
| D | core.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
86 * struct spi_nor_erase_type - Structure to describe a SPI NOR erase type
87 * @size: the size of the sector/block erased by the erase type.
88 * JEDEC JESD216B imposes erase sizes to be a power of 2.
89 * @size_shift: @size is a power of 2, the shift is stored in
91 * @size_mask: the size mask based on @size_shift.
92 * @opcode: the SPI command op code to erase the sector/block.
93 * @idx: Erase Type index as sorted in the Basic Flash Parameter
95 * Erase Types with the ones identified in the SFDP
99 u32 size; member
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| D | sfdp.c | 1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/mtd/spi-nor.h>
13 #define SFDP_PARAM_HEADER_ID(p) (((p)->id_msb << 8) | (p)->id_lsb)
15 (((p)->parameter_table_pointer[2] << 16) | \
16 ((p)->parameter_table_pointer[1] << 8) | \
17 ((p)->parameter_table_pointer[0] << 0))
21 #define SFDP_4BAIT_ID 0xff84 /* 4-byte Address Instruction Table */
29 u8 nph; /* 0-base number of parameter headers */
38 /* The Fast Read x-y-z hardware capability in params->hwcaps.mask. */
43 * whether the Fast Read x-y-z command is supported.
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| D | core.c | 1 // SPDX-License-Identifier: GPL-2.0
23 #include <linux/mtd/spi-nor.h>
30 * For everything but full-chip erase; probably could be much smaller, but kept
36 * For full-chip erase, calibrated to a 2MB flash (M25P16); should be scaled up
44 * spi_nor_spimem_bounce() - check if a bounce buffer is needed for the data
55 /* op->data.buf.in occupies the same memory as op->data.buf.out */ in spi_nor_spimem_bounce()
56 if (object_is_on_stack(op->data.buf.in) || in spi_nor_spimem_bounce()
57 !virt_addr_valid(op->data.buf.in)) { in spi_nor_spimem_bounce()
58 if (op->data.nbytes > nor->bouncebuf_size) in spi_nor_spimem_bounce()
59 op->data.nbytes = nor->bouncebuf_size; in spi_nor_spimem_bounce()
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| /kernel/linux/linux-5.10/drivers/mtd/ |
| D | mtdconcat.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright © 2002-2010 David Woodhouse <dwmw2@infradead.org>
16 #include <linux/backing-dev.h>
36 * how to calculate the size required for the above structure,
61 for (i = 0; i < concat->num_subdev; i++) { in concat_read()
62 struct mtd_info *subdev = concat->subdev[i]; in concat_read()
63 size_t size, retsize; in concat_read() local
65 if (from >= subdev->size) { in concat_read()
67 size = 0; in concat_read()
68 from -= subdev->size; in concat_read()
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| D | mtdpstore.c | 1 // SPDX-License-Identifier: GPL-2.0
3 #define dev_fmt(fmt) "mtdoops-pstore: " fmt
30 struct mtd_info *mtd = cxt->mtd; in mtdpstore_block_isbad()
33 off = ALIGN_DOWN(off, mtd->erasesize); in mtdpstore_block_isbad()
34 blknum = div_u64(off, mtd->erasesize); in mtdpstore_block_isbad()
36 if (test_bit(blknum, cxt->badmap)) in mtdpstore_block_isbad()
40 dev_err(&mtd->dev, "mtd_block_isbad failed, aborting\n"); in mtdpstore_block_isbad()
43 set_bit(blknum, cxt->badmap); in mtdpstore_block_isbad()
52 struct mtd_info *mtd = cxt->mtd; in mtdpstore_panic_block_isbad()
55 off = ALIGN_DOWN(off, mtd->erasesize); in mtdpstore_panic_block_isbad()
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| D | mtdblock.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
6 * Copyright © 2000-2003 Nicolas Pitre <nico@fluxnic.net>
38 * buffer cache can handle, we must implement read-modify-write on flash
39 * sectors for each block write requests. To avoid over-erasing flash sectors
47 struct erase_info erase; in erase_write() local
52 * First, let's erase the flash block. in erase_write()
54 erase.addr = pos; in erase_write()
55 erase.len = len; in erase_write()
57 ret = mtd_erase(mtd, &erase); in erase_write()
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| /kernel/linux/linux-6.6/drivers/mtd/ |
| D | mtdconcat.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
6 * Copyright © 2002-2010 David Woodhouse <dwmw2@infradead.org>
16 #include <linux/backing-dev.h>
36 * how to calculate the size required for the above structure,
61 for (i = 0; i < concat->num_subdev; i++) { in concat_read()
62 struct mtd_info *subdev = concat->subdev[i]; in concat_read()
63 size_t size, retsize; in concat_read() local
65 if (from >= subdev->size) { in concat_read()
67 size = 0; in concat_read()
68 from -= subdev->size; in concat_read()
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| D | mtdpstore.c | 1 // SPDX-License-Identifier: GPL-2.0
3 #define dev_fmt(fmt) "mtdoops-pstore: " fmt
30 struct mtd_info *mtd = cxt->mtd; in mtdpstore_block_isbad()
33 off = ALIGN_DOWN(off, mtd->erasesize); in mtdpstore_block_isbad()
34 blknum = div_u64(off, mtd->erasesize); in mtdpstore_block_isbad()
36 if (test_bit(blknum, cxt->badmap)) in mtdpstore_block_isbad()
40 dev_err(&mtd->dev, "mtd_block_isbad failed, aborting\n"); in mtdpstore_block_isbad()
43 set_bit(blknum, cxt->badmap); in mtdpstore_block_isbad()
52 struct mtd_info *mtd = cxt->mtd; in mtdpstore_panic_block_isbad()
55 off = ALIGN_DOWN(off, mtd->erasesize); in mtdpstore_panic_block_isbad()
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| D | mtdblock.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
5 * Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
6 * Copyright © 2000-2003 Nicolas Pitre <nico@fluxnic.net>
38 * buffer cache can handle, we must implement read-modify-write on flash
39 * sectors for each block write requests. To avoid over-erasing flash sectors
47 struct erase_info erase; in erase_write() local
52 * First, let's erase the flash block. in erase_write()
54 erase.addr = pos; in erase_write()
55 erase.len = len; in erase_write()
57 ret = mtd_erase(mtd, &erase); in erase_write()
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| D | mtdoops.c | 1 // SPDX-License-Identifier: GPL-2.0-only
25 /* Maximum MTD partition size */
31 "record size for MTD OOPS pages in bytes (default 4096)");
70 set_bit(page, cxt->oops_page_used); in mark_page_used()
75 clear_bit(page, cxt->oops_page_used); in mark_page_unused()
80 return test_bit(page, cxt->oops_page_used); in page_is_used()
85 struct mtd_info *mtd = cxt->mtd; in mtdoops_erase_block()
86 u32 start_page_offset = mtd_div_by_eb(offset, mtd) * mtd->erasesize; in mtdoops_erase_block()
88 u32 erase_pages = mtd->erasesize / record_size; in mtdoops_erase_block()
89 struct erase_info erase; in mtdoops_erase_block() local
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| /kernel/linux/linux-6.6/drivers/mtd/spi-nor/ |
| D | sfdp.c | 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)
23 #define SFDP_4BAIT_ID 0xff84 /* 4-byte Address Instruction Table */
31 * Register Map Offsets for Multi-Chip
41 u8 nph; /* 0-base number of parameter headers */
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| D | core.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
195 * struct spi_nor_erase_type - Structure to describe a SPI NOR erase type
196 * @size: the size of the sector/block erased by the erase type.
197 * JEDEC JESD216B imposes erase sizes to be a power of 2.
198 * @size_shift: @size is a power of 2, the shift is stored in
200 * @size_mask: the size mask based on @size_shift.
201 * @opcode: the SPI command op code to erase the sector/block.
202 * @idx: Erase Type index as sorted in the Basic Flash Parameter
204 * Erase Types with the ones identified in the SFDP
208 u32 size; member
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| D | core.c | 1 // SPDX-License-Identifier: GPL-2.0
17 #include <linux/mtd/spi-nor.h>
30 * For everything but full-chip erase; probably could be much smaller, but kept
36 * For full-chip erase, calibrated to a 2MB flash (M25P16); should be scaled up
47 * spi_nor_get_cmd_ext() - Get the command opcode extension based on the
60 switch (nor->cmd_ext_type) { in spi_nor_get_cmd_ext()
62 return ~op->cmd.opcode; in spi_nor_get_cmd_ext()
65 return op->cmd.opcode; in spi_nor_get_cmd_ext()
68 dev_err(nor->dev, "Unknown command extension type\n"); in spi_nor_get_cmd_ext()
74 * spi_nor_spimem_setup_op() - Set up common properties of a spi-mem op.
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| /kernel/linux/linux-6.6/drivers/net/wwan/iosm/ |
| D | iosm_ipc_flash.h | 1 /* SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (C) 2020-2021 Intel Corporation.
9 /* Buffer size used to read the fls image */
11 /* Full erase start address */
13 /* Erase length for NAND flash */
15 /* EBL response Header size */
17 /* EBL payload size */
19 /* Total EBL pack size */
21 /* EBL payload size */
23 /* Total EBL pack size */
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| /kernel/linux/linux-6.6/drivers/mtd/chips/ |
| D | cfi_util.c | 1 // SPDX-License-Identifier: GPL-2.0
44 unsigned type = cfi->device_type; in cfi_build_cmd_addr()
88 /* First, determine what the bit-pattern should be for a single in cfi_build_cmd()
103 /* Now replicate it across the size of an unsigned long, or in cfi_build_cmd()
122 /* And finally, for the multi-word case, replicate it in cfi_build_cmd()
178 /* Last, determine what the bit-pattern should be for a single in cfi_merge_status()
199 * If prev_val is non-null, it will be set to the value at the command address,
215 return addr - base; in cfi_send_gen_cmd()
222 int osf = cfi->interleave * cfi->device_type; /* scale factor */ in cfi_qry_present()
250 cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); in cfi_qry_mode_on()
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| /kernel/linux/linux-5.10/drivers/mtd/chips/ |
| D | cfi_util.c | 45 unsigned type = cfi->device_type; in cfi_build_cmd_addr()
89 /* First, determine what the bit-pattern should be for a single in cfi_build_cmd()
104 /* Now replicate it across the size of an unsigned long, or in cfi_build_cmd()
123 /* And finally, for the multi-word case, replicate it in cfi_build_cmd()
179 /* Last, determine what the bit-pattern should be for a single in cfi_merge_status()
200 * If prev_val is non-null, it will be set to the value at the command address,
216 return addr - base; in cfi_send_gen_cmd()
223 int osf = cfi->interleave * cfi->device_type; /* scale factor */ in cfi_qry_present()
251 cfi_send_gen_cmd(0xF0, 0, base, map, cfi, cfi->device_type, NULL); in cfi_qry_mode_on()
252 cfi_send_gen_cmd(0x98, 0x55, base, map, cfi, cfi->device_type, NULL); in cfi_qry_mode_on()
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| /kernel/linux/linux-6.6/drivers/mtd/devices/ |
| D | powernv_flash.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
42 * Don't return -ERESTARTSYS if we can't get a token, the MTD core
49 struct powernv_flash *info = (struct powernv_flash *)mtd->priv; in powernv_flash_async_op()
50 struct device *dev = &mtd->dev; in powernv_flash_async_op()
60 if (token != -ERESTARTSYS) in powernv_flash_async_op()
63 token = -EINTR; in powernv_flash_async_op()
69 rc = opal_flash_read(info->id, offset, __pa(buf), len, token); in powernv_flash_async_op()
72 rc = opal_flash_write(info->id, offset, __pa(buf), len, token); in powernv_flash_async_op()
75 rc = opal_flash_erase(info->id, offset, len, token); in powernv_flash_async_op()
80 return -EIO; in powernv_flash_async_op()
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| /kernel/linux/linux-5.10/drivers/mtd/devices/ |
| D | powernv_flash.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
42 * Don't return -ERESTARTSYS if we can't get a token, the MTD core
49 struct powernv_flash *info = (struct powernv_flash *)mtd->priv; in powernv_flash_async_op()
50 struct device *dev = &mtd->dev; in powernv_flash_async_op()
60 if (token != -ERESTARTSYS) in powernv_flash_async_op()
63 token = -EINTR; in powernv_flash_async_op()
69 rc = opal_flash_read(info->id, offset, __pa(buf), len, token); in powernv_flash_async_op()
72 rc = opal_flash_write(info->id, offset, __pa(buf), len, token); in powernv_flash_async_op()
75 rc = opal_flash_erase(info->id, offset, len, token); in powernv_flash_async_op()
80 return -EIO; in powernv_flash_async_op()
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| D | lart.c | 1 // SPDX-License-Identifier: GPL-2.0-only
4 * MTD driver for the 28F160F3 Flash Memory (non-CFI) on LART.
13 * - Order Number: 290644-005
14 * - January 2000
17 * - http://www.linux-mtd.infradead.org/
70 #define BUSWIDTH 4 /* don't change this - a lot of the code _will_ break if you change this */
71 #define FLASH_OFFSET 0xe8000000 /* see linux/arch/arm/mach-sa1100/lart.c */
93 #define ERASE_SETUP 0x00200020 /* Block Erase */
94 #define ERASE_CONFIRM 0x00D000D0 /* Block Erase and Program Resume */
99 #define STATUS_ERASE_ERR 0x00200020 /* Erase Status (ES) */
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| /kernel/linux/linux-6.6/drivers/misc/eeprom/ |
| D | eeprom_93xx46.c | 1 // SPDX-License-Identifier: GPL-2.0-only
20 #include <linux/nvmem-provider.h>
65 int size; member
70 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_SINGLE_WORD_READ; in has_quirk_single_word_read()
75 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH; in has_quirk_instruction_length()
80 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE; in has_quirk_extra_read_cycle()
91 if (unlikely(off >= edev->size)) in eeprom_93xx46_read()
93 if ((off + count) > edev->size) in eeprom_93xx46_read()
94 count = edev->size - off; in eeprom_93xx46_read()
98 mutex_lock(&edev->lock); in eeprom_93xx46_read()
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| /kernel/linux/linux-5.10/drivers/misc/eeprom/ |
| D | eeprom_93xx46.c | 1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <linux/nvmem-provider.h>
49 int size; member
54 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_SINGLE_WORD_READ; in has_quirk_single_word_read()
59 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_INSTRUCTION_LENGTH; in has_quirk_instruction_length()
64 return edev->pdata->quirks & EEPROM_93XX46_QUIRK_EXTRA_READ_CYCLE; in has_quirk_extra_read_cycle()
74 if (unlikely(off >= edev->size)) in eeprom_93xx46_read()
76 if ((off + count) > edev->size) in eeprom_93xx46_read()
77 count = edev->size - off; in eeprom_93xx46_read()
81 mutex_lock(&edev->lock); in eeprom_93xx46_read()
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| /kernel/linux/linux-5.10/include/linux/mtd/ |
| D | spi-nor.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
12 #include <linux/spi/spi-mem.h>
19 * requires a 4-byte (32-bit) address.
42 #define SPINOR_OP_BE_4K 0x20 /* Erase 4KiB block */
43 #define SPINOR_OP_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips */
44 #define SPINOR_OP_BE_32K 0x52 /* Erase 32KiB block */
45 #define SPINOR_OP_CHIP_ERASE 0xc7 /* Erase whole flash chip */
46 #define SPINOR_OP_SE 0xd8 /* Sector erase (usually 64KiB) */
55 /* 4-byte address opcodes - used on Spansion and some Macronix flashes. */
69 #define SPINOR_OP_BE_4K_4B 0x21 /* Erase 4KiB block */
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| /kernel/linux/linux-6.6/include/linux/ |
| D | pstore_zone.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
12 * struct pstore_zone_info - pstore/zone back-end driver structure
14 * @owner: Module which is responsible for this back-end driver.
15 * @name: Name of the back-end driver.
16 * @total_size: The total size in bytes pstore/zone can use. It must be greater
18 * @kmsg_size: The size of oops/panic zone. Zero means disabled, otherwise,
21 * @pmsg_size: The size of pmsg zone which is the same as @kmsg_size.
22 * @console_size:The size of console zone which is the same as @kmsg_size.
23 * @ftrace_size:The size of ftrace zone which is the same as @kmsg_size.
25 * @size and @offset are relative value to storage.
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