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_ENV 46 bool "Boot counter in environment" 47 help 48 If no softreset save registers are found on the hardware 49 "bootcount" is stored in the environment. To prevent a 50 saveenv on all reboots, the environment variable 51 "upgrade_available" is used. If "upgrade_available" is 52 0, "bootcount" is always 0, if "upgrade_available" is 53 1 "bootcount" is incremented in the environment. 54 So the Userspace Application must set the "upgrade_available" 55 and "bootcount" variable to 0, if a boot was successfully. 56 57config BOOTCOUNT_RAM 58 bool "Boot counter in RAM" 59 help 60 Store the bootcount in DRAM protected against against bit errors 61 due to short power loss or holding a system in RESET. 62 63config BOOTCOUNT_I2C 64 bool "Boot counter on I2C device" 65 help 66 Enable support for the bootcounter on an i2c (like RTC) device. 67 CONFIG_SYS_I2C_RTC_ADDR = i2c chip address 68 CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for 69 the bootcounter. 70 71config BOOTCOUNT_AT91 72 bool "Boot counter for Atmel AT91SAM9XE" 73 depends on AT91SAM9XE 74 75config DM_BOOTCOUNT 76 bool "Boot counter in a device-model device" 77 help 78 Enables reading/writing the bootcount in a device-model based 79 backing store. If an entry in /chosen/u-boot,bootcount-device 80 exists, this will be the preferred bootcount device; otherwise 81 the first available bootcount device will be used. 82 83endchoice 84 85if DM_BOOTCOUNT 86 87menu "Backing stores for device-model backed bootcount" 88config DM_BOOTCOUNT_RTC 89 bool "Support RTC devices as a backing store for bootcount" 90 depends on DM_RTC 91 help 92 Enabled reading/writing the bootcount in a DM RTC device. 93 The wrapper device is to be specified with the compatible string 94 'u-boot,bootcount-rtc' and the 'rtc'-property (a phandle pointing 95 to the underlying RTC device) and an optional 'offset' property 96 are supported. 97 98 Accesses to the backing store are performed using the write16 99 and read16 ops of DM RTC devices. 100 101config DM_BOOTCOUNT_I2C_EEPROM 102 bool "Support i2c eeprom devices as a backing store for bootcount" 103 depends on I2C_EEPROM 104 help 105 Enabled reading/writing the bootcount in a DM i2c eeprom device. 106 The wrapper device is to be specified with the compatible string 107 'u-boot,bootcount-i2c-eeprom' and the 'i2c-eeprom'-property (a phandle 108 pointing to the underlying i2c eeprom device) and an optional 'offset' 109 property are supported. 110 111config DM_BOOTCOUNT_SPI_FLASH 112 bool "Support SPI flash devices as a backing store for bootcount" 113 depends on DM_SPI_FLASH 114 help 115 Enabled reading/writing the bootcount in a DM SPI flash device. 116 The wrapper device is to be specified with the compatible string 117 'u-boot,bootcount-spi-flash' and the 'spi-flash'-property (a phandle 118 pointing to the underlying SPI flash device) and an optional 'offset' 119 property are supported. 120 121config BOOTCOUNT_MEM 122 bool "Support memory based bootcounter" 123 help 124 Enabling Memory based bootcount, typically in a SoC register which 125 is not cleared on softreset. 126 compatible = "u-boot,bootcount"; 127 128endmenu 129 130endif 131 132config BOOTCOUNT_BOOTLIMIT 133 int "Maximum number of reboot cycles allowed" 134 default 0 135 help 136 Set the Maximum number of reboot cycles allowed without the boot 137 counter being cleared. 138 If set to 0 do not set a boot limit in the environment. 139 140config BOOTCOUNT_ALEN 141 int "I2C address length" 142 default 1 143 depends on BOOTCOUNT_I2C 144 help 145 Length of the the I2C address at SYS_BOOTCOUNT_ADDR for storing 146 the boot counter. 147 148config SYS_BOOTCOUNT_SINGLEWORD 149 bool "Use single word to pack boot count and magic value" 150 depends on BOOTCOUNT_GENERIC 151 help 152 This option enables packing boot count magic value and boot count 153 into single word (32 bits). 154 155config SYS_BOOTCOUNT_EXT_INTERFACE 156 string "Interface on which to find boot counter EXT filesystem" 157 default "mmc" 158 depends on BOOTCOUNT_EXT 159 help 160 Set the interface to use when locating the filesystem to use for the 161 boot counter. 162 163config SYS_BOOTCOUNT_EXT_DEVPART 164 string "Partition of the boot counter EXT filesystem" 165 default "0:1" 166 depends on BOOTCOUNT_EXT 167 help 168 Set the partition to use when locating the filesystem to use for the 169 boot counter. 170 171config SYS_BOOTCOUNT_EXT_NAME 172 string "Path and filename of the EXT filesystem based boot counter" 173 default "/boot/failures" 174 depends on BOOTCOUNT_EXT 175 help 176 Set the filename and path of the file used to store the boot counter. 177 178config SYS_BOOTCOUNT_ADDR 179 hex "RAM address used for reading and writing the boot counter" 180 default 0x44E3E000 if BOOTCOUNT_AM33XX 181 default 0xE0115FF8 if ARCH_LS1043A || ARCH_LS1021A 182 depends on BOOTCOUNT_AM33XX || BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \ 183 BOOTCOUNT_I2C 184 help 185 Set the address used for reading and writing the boot counter. 186 187config SYS_BOOTCOUNT_MAGIC 188 hex "Magic value for the boot counter" 189 default 0xB001C041 190 help 191 Set the magic value used for the boot counter. 192 193endif 194