1 # SPDX-License-Identifier: GPL-2.0-only 2 config MTD_AR7_PARTS 3 tristate "TI AR7 partitioning parser" 4 help 5 TI AR7 partitioning parser support 6 7 config MTD_BCM47XX_PARTS 8 tristate "BCM47XX partitioning parser" 9 depends on BCM47XX || ARCH_BCM_5301X 10 help 11 This provides partitions parser for devices based on BCM47xx 12 boards. 13 14 config MTD_BCM63XX_PARTS 15 bool "BCM63XX CFE partitioning parser" 16 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST 17 select CRC32 18 select MTD_PARSER_IMAGETAG 19 help 20 This provides partition parsing for BCM63xx devices with CFE 21 bootloaders. 22 23 config MTD_CMDLINE_PARTS 24 tristate "Command line partition table parsing" 25 depends on MTD 26 help 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. 30 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 34 example. 35 36 The format for the command line is as follows: 37 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 43 remaining space 44 <name> := (NAME) 45 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 48 names. 49 50 Examples: 51 52 1 flash resource (mtd-id "sa1100"), with 1 single writable partition: 53 mtdparts=sa1100:- 54 55 Same flash, but 2 named partitions, the first one being read-only: 56 mtdparts=sa1100:256k(ARMboot)ro,-(root) 57 58 If unsure, say 'N'. 59 60 config MTD_OF_PARTS 61 tristate "OpenFirmware (device tree) partitioning parser" 62 default y 63 depends on OF 64 help 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. 69 70 config MTD_PARSER_IMAGETAG 71 tristate "Parser for BCM963XX Image Tag format partitions" 72 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST 73 select CRC32 74 help 75 Image Tag is the firmware header used by broadcom on their xDSL line 76 of devices. It is used to describe the offsets and lengths of kernel 77 and rootfs partitions. 78 This driver adds support for parsing a partition with an Image Tag 79 header and creates up to two partitions, kernel and rootfs. 80 81 config MTD_AFS_PARTS 82 tristate "ARM Firmware Suite partition parsing" 83 depends on (ARM || ARM64) 84 help 85 The ARM Firmware Suite allows the user to divide flash devices into 86 multiple 'images'. Each such image has a header containing its name 87 and offset/size etc. 88 89 If you need code which can detect and parse these tables, and 90 register MTD 'partitions' corresponding to each image detected, 91 enable this option. 92 93 You will still need the parsing functions to be called by the driver 94 for your particular device. It won't happen automatically. The 95 'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example. 96 97 config MTD_PARSER_TRX 98 tristate "Parser for TRX format partitions" 99 depends on MTD && (BCM47XX || ARCH_BCM_5301X || COMPILE_TEST) 100 help 101 TRX is a firmware format used by Broadcom on their devices. It 102 may contain up to 3/4 partitions (depending on the version). 103 This driver will parse TRX header and report at least two partitions: 104 kernel and rootfs. 105 106 config MTD_SHARPSL_PARTS 107 tristate "Sharp SL Series NAND flash partition parser" 108 depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST 109 help 110 This provides the read-only FTL logic necessary to read the partition 111 table from the NAND flash of Sharp SL Series (Zaurus) and the MTD 112 partition parser using this code. 113 114 config MTD_REDBOOT_PARTS 115 tristate "RedBoot partition table parsing" 116 help 117 RedBoot is a ROM monitor and bootloader which deals with multiple 118 'images' in flash devices by putting a table one of the erase 119 blocks on the device, similar to a partition table, which gives 120 the offsets, lengths and names of all the images stored in the 121 flash. 122 123 If you need code which can detect and parse this table, and register 124 MTD 'partitions' corresponding to each image in the table, enable 125 this option. 126 127 You will still need the parsing functions to be called by the driver 128 for your particular device. It won't happen automatically. The 129 SA1100 map driver (CONFIG_MTD_SA1100) has an option for this, for 130 example. 131 132 if MTD_REDBOOT_PARTS 133 134 config MTD_REDBOOT_DIRECTORY_BLOCK 135 int "Location of RedBoot partition table" 136 default "-1" 137 help 138 This option is the Linux counterpart to the 139 CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK RedBoot compile time 140 option. 141 142 The option specifies which Flash sectors holds the RedBoot 143 partition table. A zero or positive value gives an absolute 144 erase block number. A negative value specifies a number of 145 sectors before the end of the device. 146 147 For example "2" means block number 2, "-1" means the last 148 block and "-2" means the penultimate block. 149 150 config MTD_REDBOOT_PARTS_UNALLOCATED 151 bool "Include unallocated flash regions" 152 help 153 If you need to register each unallocated flash region as a MTD 154 'partition', enable this option. 155 156 config MTD_REDBOOT_PARTS_READONLY 157 bool "Force read-only for RedBoot system images" 158 help 159 If you need to force read-only for 'RedBoot', 'RedBoot Config' and 160 'FIS directory' images, enable this option. 161 162 endif # MTD_REDBOOT_PARTS 163