xref: /openbmc/u-boot/drivers/bootcount/Kconfig (revision 66dae3bb)
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	help
31	  Add support for maintaining boot count in a file on an EXT
32	  filesystem.
33
34config BOOTCOUNT_AM33XX
35	bool "Boot counter in AM33XX RTC IP block"
36	depends on AM33XX || SOC_DA8XX
37	select SPL_AM33XX_ENABLE_RTC32K_OSC if AM33XX
38	help
39	  A bootcount driver for the RTC IP block found on many TI platforms.
40	  This requires the RTC clocks, etc, to be enabled prior to use and
41	  not all boards with this IP block on it will have the RTC in use.
42
43config BOOTCOUNT_ENV
44	bool "Boot counter in environment"
45	help
46	  If no softreset save registers are found on the hardware
47	  "bootcount" is stored in the environment. To prevent a
48	  saveenv on all reboots, the environment variable
49	  "upgrade_available" is used. If "upgrade_available" is
50	  0, "bootcount" is always 0, if "upgrade_available" is
51	  1 "bootcount" is incremented in the environment.
52	  So the Userspace Application must set the "upgrade_available"
53	  and "bootcount" variable to 0, if a boot was successfully.
54
55config BOOTCOUNT_RAM
56	bool "Boot counter in RAM"
57	help
58	  Store the bootcount in DRAM protected against against bit errors
59	  due to short power loss or holding a system in RESET.
60
61config BOOTCOUNT_I2C
62	bool "Boot counter on I2C device"
63	help
64	  Enable support for the bootcounter on an i2c (like RTC) device.
65	  CONFIG_SYS_I2C_RTC_ADDR = i2c chip address
66	  CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for
67	                              the bootcounter.
68
69config BOOTCOUNT_AT91
70	bool "Boot counter for Atmel AT91SAM9XE"
71	depends on AT91SAM9XE
72
73endchoice
74
75config BOOTCOUNT_ALEN
76	int "I2C address length"
77	default 1
78	depends on BOOTCOUNT_I2C
79	help
80	  Length of the the I2C address at SYS_BOOTCOUNT_ADDR for storing
81	  the boot counter.
82
83config SYS_BOOTCOUNT_SINGLEWORD
84	bool "Use single word to pack boot count and magic value"
85	depends on BOOTCOUNT_GENERIC
86	help
87	  This option enables packing boot count magic value and boot count
88	  into single word (32 bits).
89
90config SYS_BOOTCOUNT_EXT_INTERFACE
91	string "Interface on which to find boot counter EXT filesystem"
92	default "mmc"
93	depends on BOOTCOUNT_EXT
94	help
95	  Set the interface to use when locating the filesystem to use for the
96	  boot counter.
97
98config SYS_BOOTCOUNT_EXT_DEVPART
99	string "Partition of the boot counter EXT filesystem"
100	default "0:1"
101	depends on BOOTCOUNT_EXT
102	help
103	  Set the partition to use when locating the filesystem to use for the
104	  boot counter.
105
106config SYS_BOOTCOUNT_EXT_NAME
107	string "Path and filename of the EXT filesystem based boot counter"
108	default "/boot/failures"
109	depends on BOOTCOUNT_EXT
110	help
111	  Set the filename and path of the file used to store the boot counter.
112
113config SYS_BOOTCOUNT_ADDR
114	hex "RAM address used for reading and writing the boot counter"
115	default 0x44E3E000 if BOOTCOUNT_AM33XX
116	default 0xE0115FF8 if ARCH_LS1043A || ARCH_LS1021A
117	depends on BOOTCOUNT_AM33XX || BOOTCOUNT_GENERIC || BOOTCOUNT_EXT || \
118		   BOOTCOUNT_I2C
119	help
120	  Set the address used for reading and writing the boot counter.
121
122endif
123