2 # Boot count configuration
5 menuconfig BOOTCOUNT_LIMIT
6 bool "Enable support for checking boot count limit"
8 Enable checking for exceeding the boot count limit.
9 More information: https://docs.u-boot.org/en/latest/api/bootcount.html
14 prompt "Boot count device"
15 default BOOTCOUNT_AM33XX if AM33XX || SOC_DA8XX
16 default BOOTCOUNT_AT91 if AT91SAM9XE
17 default BOOTCOUNT_GENERIC
19 config BOOTCOUNT_GENERIC
20 bool "Generic default boot counter"
22 Generic bootcount stored at SYS_BOOTCOUNT_ADDR.
25 Set to the address where the bootcount and bootcount magic
29 bool "Boot counter on a filesystem"
31 Add support for maintaining boot count in a file on a filesystem.
32 This requires that you have enabled write support for the filesystem
33 that will be used by the partition that you configure this feature
36 config 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
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.
45 config BOOTCOUNT_AM33XX_NVMEM
46 bool "Boot counter in AM33XX RTC IP block with upgrade_available flag"
48 select SPL_AM33XX_ENABLE_RTC32K_OSC if AM33XX
50 Add support for maintaining bootcount,upgrade_available,
51 version and BOOTMAGIC in a AM33xx RTC IP block
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.
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
65 bool "Boot counter in environment"
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 1,
72 "bootcount" is incremented in the environment.
73 So the Userspace Application must set the "upgrade_available"
74 and "bootcount" variables to 0, if the system booted successfully.
77 bool "Boot counter in RAM"
79 Store the bootcount in DRAM protected against bit errors
80 due to short power loss or holding a system in RESET.
83 bool "Boot counter for Atmel AT91SAM9XE"
87 bool "Boot counter in a device-model device"
89 Enables reading/writing the bootcount in a device-model based
90 backing store. If an entry in /chosen/u-boot,bootcount-device
91 exists, this will be the preferred bootcount device; otherwise
92 the first available bootcount device will be used.
98 menu "Backing stores for device-model backed bootcount"
99 config DM_BOOTCOUNT_RTC
100 bool "Support RTC devices as a backing store for bootcount"
103 Enabled reading/writing the bootcount in a DM RTC device.
104 The wrapper device is to be specified with the compatible string
105 'u-boot,bootcount-rtc' and the 'rtc'-property (a phandle pointing
106 to the underlying RTC device) and an optional 'offset' property
109 Accesses to the backing store are performed using the write16
110 and read16 ops of DM RTC devices.
112 config DM_BOOTCOUNT_I2C
113 bool "Driver Model boot counter on I2C device"
116 Enable support for the bootcounter on a generic i2c device, like a RTC
117 or PMIC. The bootcounter is configured in the device tree using the
118 "u-boot,bootcount-i2c" compatible string. It requires a phandle
119 'i2cbcdev' for the i2c device and an 'offset' property used within the
122 config DM_BOOTCOUNT_I2C_EEPROM
123 bool "Support i2c eeprom devices as a backing store for bootcount"
124 depends on I2C_EEPROM
126 Enabled reading/writing the bootcount in a DM i2c eeprom device.
127 The wrapper device is to be specified with the compatible string
128 'u-boot,bootcount-i2c-eeprom' and the 'i2c-eeprom'-property (a phandle
129 pointing to the underlying i2c eeprom device) and an optional 'offset'
130 property are supported.
132 config DM_BOOTCOUNT_PMIC_PFUZE100
133 bool "Enable Bootcount driver for PMIC PFUZE100"
134 depends on DM_PMIC_PFUZE100
136 Enable support for the bootcounter using PMIC PFUZE100 registers.
137 This works only, if the PMIC is not connected to a battery.
139 config DM_BOOTCOUNT_SPI_FLASH
140 bool "Support SPI flash devices as a backing store for bootcount"
141 depends on DM_SPI_FLASH
143 Enabled reading/writing the bootcount in a DM SPI flash device.
144 The wrapper device is to be specified with the compatible string
145 'u-boot,bootcount-spi-flash' and the 'spi-flash'-property (a phandle
146 pointing to the underlying SPI flash device) and an optional 'offset'
147 property are supported.
150 bool "Support memory based bootcounter"
152 Enabling Memory based bootcount, typically in a SoC register which
153 is not cleared on softreset.
154 compatible = "u-boot,bootcount";
156 config DM_BOOTCOUNT_SYSCON
157 bool "Support SYSCON devices as a backing store for bootcount"
161 Enable reading/writing the bootcount value in a DM SYSCON device.
162 The driver supports a fixed 32 bits size register using the native
163 endianness. However, this can be controlled from the SYSCON DT node
166 Accessing the backend is done using the regmap interface.
172 config BOOTCOUNT_BOOTLIMIT
173 int "Maximum number of reboot cycles allowed"
176 Set the Maximum number of reboot cycles allowed without the boot
177 counter being cleared.
178 If set to 0, do not set a boot limit in the environment.
180 config SYS_BOOTCOUNT_SINGLEWORD
181 bool "Use single word to pack boot count and magic value"
182 depends on BOOTCOUNT_GENERIC
184 This option enables packing boot count magic value and boot count
185 into single word (32 bits).
187 config SYS_BOOTCOUNT_FS_INTERFACE
188 string "Interface on which to find boot counter filesystem"
190 depends on BOOTCOUNT_FS
192 Set the interface to use when locating the filesystem to use for the
195 config SYS_BOOTCOUNT_FS_DEVPART
196 string "Partition of the boot counter filesystem"
198 depends on BOOTCOUNT_FS
200 Set the partition to use when locating the filesystem to use for the
203 config SYS_BOOTCOUNT_FS_NAME
204 string "Path and filename of the FS filesystem based boot counter"
205 default "/boot/failures"
206 depends on BOOTCOUNT_FS
208 Set the filename and path of the file used to store the boot counter.
210 config SYS_BOOTCOUNT_ADDR
211 hex "RAM address used for reading and writing the boot counter"
212 default 0x44E3E000 if BOOTCOUNT_AM33XX || BOOTCOUNT_AM33XX_NVMEM
213 default 0xE0115FF8 if ARCH_LS1043A || ARCH_LS1021A
214 depends on BOOTCOUNT_AM33XX || BOOTCOUNT_GENERIC || BOOTCOUNT_FS || \
215 BOOTCOUNT_AM33XX_NVMEM
217 Set the address used for reading and writing the boot counter.
219 config SYS_BOOTCOUNT_MAGIC
220 hex "Magic value for the boot counter"
221 default 0xB001C041 if BOOTCOUNT_GENERIC || BOOTCOUNT_FS || \
222 BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \
223 BOOTCOUNT_RAM || BOOTCOUNT_AT91 || DM_BOOTCOUNT
224 default 0xB0 if BOOTCOUNT_AM33XX_NVMEM
225 depends on BOOTCOUNT_GENERIC || BOOTCOUNT_FS || \
226 BOOTCOUNT_AM33XX || BOOTCOUNT_ENV || \
227 BOOTCOUNT_RAM || BOOTCOUNT_AT91 || DM_BOOTCOUNT || \
228 BOOTCOUNT_AM33XX_NVMEM
230 Set the magic value used for the boot counter.
233 prompt "Endianness of bootcount accessors"
234 default SYS_BOOTCOUNT_LE
236 config SYS_BOOTCOUNT_LE
237 bool "Little endian accessors"
239 config SYS_BOOTCOUNT_BE
240 bool "Big endian accessors"