1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "TI AR7 partitioning parser"
5 TI AR7 partitioning parser support
7 config MTD_BCM47XX_PARTS
8 tristate "BCM47XX partitioning parser"
9 depends on BCM47XX || ARCH_BCM_5301X
11 This provides partitions parser for devices based on BCM47xx
14 config MTD_BCM63XX_PARTS
15 bool "BCM63XX CFE partitioning parser"
16 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
18 select MTD_PARSER_IMAGETAG
20 This provides partition parsing for BCM63xx devices with CFE
23 config MTD_CMDLINE_PARTS
24 tristate "Command line partition table parsing"
27 Allow generic configuration of the MTD partition tables via the kernel
28 command line. Multiple flash resources are supported for hardware where
29 different kinds of flash memory are available.
31 You will still need the parsing functions to be called by the driver
32 for your particular device. It won't happen automatically. The
33 SA1100 map driver (CONFIG_MTD_SA1100) has an option for this, for
36 The format for the command line is as follows:
38 mtdparts=<mtddef>[;<mtddef]
39 <mtddef> := <mtd-id>:<partdef>[,<partdef>]
40 <partdef> := <size>[@offset][<name>][ro]
41 <mtd-id> := unique id used in mapping driver/device
42 <size> := standard linux memsize OR "-" to denote all
46 Due to the way Linux handles the command line, no spaces are
47 allowed in the partition definition, including mtd id's and partition
52 1 flash resource (mtd-id "sa1100"), with 1 single writable partition:
55 Same flash, but 2 named partitions, the first one being read-only:
56 mtdparts=sa1100:256k(ARMboot)ro,-(root)
61 tristate "OpenFirmware (device tree) partitioning parser"
65 This provides a open firmware device tree partition parser
66 which derives the partition map from the children of the
67 flash memory node, as described in
68 Documentation/devicetree/bindings/mtd/partition.txt.
70 config MTD_OF_PARTS_BCM4908
71 bool "BCM4908 partitioning support"
72 depends on MTD_OF_PARTS && (ARCH_BCM4908 || COMPILE_TEST)
75 This provides partitions parser for BCM4908 family devices
76 that can have multiple "firmware" partitions. It takes care of
77 finding currently used one and backup ones.
79 config MTD_OF_PARTS_LINKSYS_NS
80 bool "Linksys Northstar partitioning support"
81 depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || COMPILE_TEST)
82 default ARCH_BCM_5301X
84 This provides partitions parser for Linksys devices based on Broadcom
85 Northstar architecture. Linksys commonly uses fixed flash layout with
86 two "firmware" partitions. Currently used firmware has to be detected
87 using CFE environment variable.
89 config MTD_PARSER_IMAGETAG
90 tristate "Parser for BCM963XX Image Tag format partitions"
91 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
94 Image Tag is the firmware header used by broadcom on their xDSL line
95 of devices. It is used to describe the offsets and lengths of kernel
96 and rootfs partitions.
97 This driver adds support for parsing a partition with an Image Tag
98 header and creates up to two partitions, kernel and rootfs.
101 tristate "ARM Firmware Suite partition parsing"
102 depends on (ARM || ARM64)
104 The ARM Firmware Suite allows the user to divide flash devices into
105 multiple 'images'. Each such image has a header containing its name
108 If you need code which can detect and parse these tables, and
109 register MTD 'partitions' corresponding to each image detected,
112 You will still need the parsing functions to be called by the driver
113 for your particular device. It won't happen automatically. The
114 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
116 config MTD_PARSER_TRX
117 tristate "Parser for TRX format partitions"
118 depends on MTD && (BCM47XX || ARCH_BCM_5301X || ARCH_MEDIATEK || COMPILE_TEST)
120 TRX is a firmware format used by Broadcom on their devices. It
121 may contain up to 3/4 partitions (depending on the version).
122 This driver will parse TRX header and report at least two partitions:
125 config MTD_SHARPSL_PARTS
126 tristate "Sharp SL Series NAND flash partition parser"
127 depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST
129 This provides the read-only FTL logic necessary to read the partition
130 table from the NAND flash of Sharp SL Series (Zaurus) and the MTD
131 partition parser using this code.
133 config MTD_REDBOOT_PARTS
134 tristate "RedBoot partition table parsing"
136 RedBoot is a ROM monitor and bootloader which deals with multiple
137 'images' in flash devices by putting a table one of the erase
138 blocks on the device, similar to a partition table, which gives
139 the offsets, lengths and names of all the images stored in the
142 If you need code which can detect and parse this table, and register
143 MTD 'partitions' corresponding to each image in the table, enable
146 You will still need the parsing functions to be called by the driver
147 for your particular device. It won't happen automatically. The
148 SA1100 map driver (CONFIG_MTD_SA1100) has an option for this, for
153 config MTD_REDBOOT_DIRECTORY_BLOCK
154 int "Location of RedBoot partition table"
157 This option is the Linux counterpart to the
158 CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK RedBoot compile time
161 The option specifies which Flash sectors holds the RedBoot
162 partition table. A zero or positive value gives an absolute
163 erase block number. A negative value specifies a number of
164 sectors before the end of the device.
166 For example "2" means block number 2, "-1" means the last
167 block and "-2" means the penultimate block.
169 config MTD_REDBOOT_PARTS_UNALLOCATED
170 bool "Include unallocated flash regions"
172 If you need to register each unallocated flash region as a MTD
173 'partition', enable this option.
175 config MTD_REDBOOT_PARTS_READONLY
176 bool "Force read-only for RedBoot system images"
178 If you need to force read-only for 'RedBoot', 'RedBoot Config' and
179 'FIS directory' images, enable this option.
181 endif # MTD_REDBOOT_PARTS
183 config MTD_QCOMSMEM_PARTS
184 tristate "Qualcomm SMEM flash partition parser"
187 This provides support for parsing partitions from Shared Memory (SMEM)
188 for NAND and SPI flash on Qualcomm platforms.