1# SPDX-License-Identifier: GPL-2.0-only 2config MTD_AR7_PARTS 3 tristate "TI AR7 partitioning parser" 4 help 5 TI AR7 partitioning parser support 6 7config 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 14config 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 23config 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 60config 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 70config MTD_OF_PARTS_BCM4908 71 bool "BCM4908 partitioning support" 72 depends on MTD_OF_PARTS && (ARCH_BCM4908 || COMPILE_TEST) 73 default ARCH_BCM4908 74 help 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. 78 79config 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 83 help 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. 88 89config MTD_PARSER_IMAGETAG 90 tristate "Parser for BCM963XX Image Tag format partitions" 91 depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST 92 select CRC32 93 help 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. 99 100config MTD_AFS_PARTS 101 tristate "ARM Firmware Suite partition parsing" 102 depends on (ARM || ARM64) 103 help 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 106 and offset/size etc. 107 108 If you need code which can detect and parse these tables, and 109 register MTD 'partitions' corresponding to each image detected, 110 enable this option. 111 112 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. 115 116config MTD_PARSER_TRX 117 tristate "Parser for TRX format partitions" 118 depends on MTD && (BCM47XX || ARCH_BCM_5301X || ARCH_MEDIATEK || COMPILE_TEST) 119 help 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: 123 kernel and rootfs. 124 125config MTD_SHARPSL_PARTS 126 tristate "Sharp SL Series NAND flash partition parser" 127 depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST 128 help 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. 132 133config MTD_REDBOOT_PARTS 134 tristate "RedBoot partition table parsing" 135 help 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 140 flash. 141 142 If you need code which can detect and parse this table, and register 143 MTD 'partitions' corresponding to each image in the table, enable 144 this option. 145 146 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 149 example. 150 151if MTD_REDBOOT_PARTS 152 153config MTD_REDBOOT_DIRECTORY_BLOCK 154 int "Location of RedBoot partition table" 155 default "-1" 156 help 157 This option is the Linux counterpart to the 158 CYGNUM_REDBOOT_FIS_DIRECTORY_BLOCK RedBoot compile time 159 option. 160 161 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. 165 166 For example "2" means block number 2, "-1" means the last 167 block and "-2" means the penultimate block. 168 169config MTD_REDBOOT_PARTS_UNALLOCATED 170 bool "Include unallocated flash regions" 171 help 172 If you need to register each unallocated flash region as a MTD 173 'partition', enable this option. 174 175config MTD_REDBOOT_PARTS_READONLY 176 bool "Force read-only for RedBoot system images" 177 help 178 If you need to force read-only for 'RedBoot', 'RedBoot Config' and 179 'FIS directory' images, enable this option. 180 181endif # MTD_REDBOOT_PARTS 182 183config MTD_QCOMSMEM_PARTS 184 tristate "Qualcomm SMEM flash partition parser" 185 depends on QCOM_SMEM 186 help 187 This provides support for parsing partitions from Shared Memory (SMEM) 188 for NAND and SPI flash on Qualcomm platforms. 189