1# 2# Boot count configuration 3# 4 5menuconfig BOOTCOUNT_LIMIT 6 bool "Enable support for checking boot count limit" 7 help 8 Enable checking for exceeding the boot count limit. 9 More information: http://www.denx.de/wiki/DULG/UBootBootCountLimit 10 11if BOOTCOUNT_LIMIT 12 13choice 14 prompt "Boot count device" 15 default BOOTCOUNT_AM33XX if AM33XX || SOC_DA8XX 16 default BOOTCOUNT_AT91 if AT91SAM9XE 17 default BOOTCOUNT_GENERIC 18 19config BOOTCOUNT_GENERIC 20 bool "Generic default boot counter" 21 help 22 Generic bootcount stored at SYS_BOOTCOUNT_ADDR. 23 24 SYS_BOOTCOUNT_ADDR: 25 Set to the address where the bootcount and bootcount magic 26 will be stored. 27 28config BOOTCOUNT_EXT 29 bool "Boot counter on EXT filesystem" 30 depends on FS_EXT4 31 select EXT4_WRITE 32 help 33 Add support for maintaining boot count in a file on an EXT 34 filesystem. 35 36config BOOTCOUNT_AM33XX 37 bool "Boot counter in AM33XX RTC IP block" 38 depends on AM33XX || SOC_DA8XX 39 select SPL_AM33XX_ENABLE_RTC32K_OSC if AM33XX 40 help 41 A bootcount driver for the RTC IP block found on many TI platforms. 42 This requires the RTC clocks, etc, to be enabled prior to use and 43 not all boards with this IP block on it will have the RTC in use. 44 45config BOOTCOUNT_AM33XX_NVMEM 46 bool "Boot counter in AM33XX RTC IP block with upgrade_available flag" 47 depends on AM33XX 48 select SPL_AM33XX_ENABLE_RTC32K_OSC if AM33XX 49 help 50 Add support for maintaining bootcount,upgrade_available, 51 version and BOOTMAGIC in a AM33xx RTC IP block 52 scratch register2. 53 54 A bootcount driver for the RTC IP block found on many TI platforms. 55 This requires the RTC clocks, etc, to be enabled prior to use and 56 not all boards with this IP block on it will have the RTC in use. 57 58 If there is upgrade in software then "upgrade_available" is 1, 59 "bootcount" is incremented otherwise "upgrade_available" and 60 "bootcount" is always 0. So the Userspace Application must set 61 the "upgrade_available" and "bootcount" variable to 0, if a boot 62 was successfully. 63 64config BOOTCOUNT_ENV 65 bool "Boot counter in environment" 66 help 67 If no softreset save registers are found on the hardware 68 "bootcount" is stored in the environment. To prevent a 69 saveenv on all reboots, the environment variable 70 "upgrade_available" is used. If "upgrade_available" is 71 0, "bootcount" is always 0, if "upgrade_available" is 72 1 "bootcount" is incremented in the environment. 73 So the Userspace Application must set the "upgrade_available" 74 and "bootcount" variable to 0, if a boot was successfully. 75 76config BOOTCOUNT_RAM 77 bool "Boot counter in RAM" 78 help 79 Store the bootcount in DRAM protected against against bit errors 80 due to short power loss or holding a system in RESET. 81 82config BOOTCOUNT_I2C 83 bool "Boot counter on I2C device" 84 help 85 Enable support for the bootcounter on an i2c (like RTC) device. 86 CONFIG_SYS_I2C_RTC_ADDR = i2c chip address 87 CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for 88 the bootcounter. 89 90config BOOTCOUNT_AT91 91 bool "Boot counter for Atmel AT91SAM9XE" 92 depends on AT91SAM9XE 93 94config DM_BOOTCOUNT 95 bool "Boot counter in a device-model device" 96 help 97 Enables reading/writing the bootcount in a device-model based 98 backing store. If an entry in /chosen/u-boot,bootcount-device 99 exists, this will be the preferred bootcount device; otherwise 100 the first available bootcount device will be used. 101 102endchoice 103 104if DM_BOOTCOUNT 105 106menu "Backing stores for device-model backed bootcount" 107config DM_BOOTCOUNT_RTC 108 bool "Support RTC devices as a backing store for bootcount" 109 depends on DM_RTC 110 help 111 Enabled reading/writing the bootcount in a DM RTC device. 112 The wrapper device is to be specified with the compatible string 113 'u-boot,bootcount-rtc' and the 'rtc'-property (a phandle pointing 114 to the underlying RTC device) and an optional 'offset' property 115 are supported. 116 117 Accesses to the backing store are performed using the write16 118 and read16 ops of DM RTC devices. 119 120config DM_BOOTCOUNT_I2C_EEPROM 121 bool "Support i2c eeprom devices as a backing store for bootcount" 122 depends on I2C_EEPROM 123 help 124 Enabled reading/writing the bootcount in a DM i2c eeprom device. 125 The wrapper device is to be specified with the compatible string 126 'u-boot,bootcount-i2c-eeprom' and the 'i2c-eeprom'-property (a phandle 127 pointing to the underlying i2c eeprom device) and an optional 'offset' 128 property are supported. 129 130config DM_BOOTCOUNT_SPI_FLASH 131 bool "Support SPI flash devices as a backing store for bootcount" 132 depends on DM_SPI_FLASH 133 help 134 Enabled reading/writing the bootcount in a DM SPI flash device. 135 The wrapper device is to be specified with the compatible string 136 'u-boot,bootcount-spi-flash' and the 'spi-flash'-property (a phandle 137 pointing to the underlying SPI flash device) and an optional 'offset' 138 property are supported. 139 140config BOOTCOUNT_MEM 141 bool "Support memory based bootcounter" 142 help 143 Enabling Memory based bootcount, typically in a SoC register which 144 is not cleared on softreset. 145 compatible = "u-boot,bootcount"; 146 147config DM_BOOTCOUNT_SYSCON 148 bool "Support SYSCON devices as a backing store for bootcount" 149 select REGMAP 150 select SYSCON 151 help 152 Enable reading/writing the bootcount value in a DM SYSCON device. 153 The driver supports a fixed 32 bits size register using the native 154 endianness. However, this can be controlled from the SYSCON DT node 155 configuration. 156 157 Accessing the backend is done using the regmap interface. 158 159endmenu 160 161endif 162 163config BOOTCOUNT_BOOTLIMIT 164 int "Maximum number of reboot cycles allowed" 165 default 0 166 help 167 Set the Maximum number of reboot cycles allowed without the boot 168 counter being cleared. 169 If set to 0 do not set a boot limit in the environment. 170 171config BOOTCOUNT_ALEN 172 int "I2C address length" 173 default 1 174 depends on BOOTCOUNT_I2C 175 help 176 Length of the the I2C address at SYS_BOOTCOUNT_ADDR for storing 177 the boot counter. 178 179config SYS_BOOTCOUNT_SINGLEWORD 180 bool "Use single word to pack boot count and magic value" 181 depends on BOOTCOUNT_GENERIC 182 help 183 This option enables packing boot count magic value and boot count 184 into single word (32 bits). 185 186config SYS_BOOTCOUNT_EXT_INTERFACE 187 string "Interface on which to find boot counter EXT filesystem" 188 default "mmc" 189 depends on BOOTCOUNT_EXT 190 help 191 Set the interface to use when locating the filesystem to use for the 192 boot counter. 193 194config SYS_BOOTCOUNT_EXT_DEVPART 195 string "Partition of the boot counter EXT filesystem" 196 default "0:1" 197 depends on BOOTCOUNT_EXT 198 help 199 Set the partition to use when locating the filesystem to use for the 200 boot counter. 201 202config SYS_BOOTCOUNT_EXT_NAME 203 string "Path and filename of the EXT filesystem based boot counter" 204 default "/boot/failures" 205 depends on BOOTCOUNT_EXT 206 help 207 Set the filename and path of the file used to store the boot counter. 208 209config SYS_BOOTCOUNT_ADDR 210 hex "RAM address used for reading and writing the boot counter" 211 default 0x44E3E000 if BOOTCOUNT_AM33XX || BOOTCOUNT_AM33XX_NVMEM 212 default 0xE0115FF8 if ARCH_LS1043A || ARCH_LS1021A 213 depends on BOOTCOUNT_AM33XX || BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ 214 BOOTCOUNT_I2C || BOOTCOUNT_AM33XX_NVMEM 215 help 216 Set the address used for reading and writing the boot counter. 217 218config SYS_BOOTCOUNT_MAGIC 219 hex "Magic value for the boot counter" 220 default 0xB001C041 if BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ 221 BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \ 222 BOOTCOUNT_RAM || BOOTCOUNT_I2C || \ 223 BOOTCOUNT_AT91 || DM_BOOTCOUNT 224 default 0xB0 if BOOTCOUNT_AM33XX_NVMEM 225 depends on BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ 226 BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \ 227 BOOTCOUNT_RAM || BOOTCOUNT_I2C || \ 228 BOOTCOUNT_AT91 || DM_BOOTCOUNT || \ 229 BOOTCOUNT_AM33XX_NVMEM 230 help 231 Set the magic value used for the boot counter. 232 233endif 234