[people/ms/u-boot.git] / common / Kconfig

menu "Boot timing"

config BOOTSTAGE
	bool "Boot timing and reporting"
	help
	  Enable recording of boot time while booting. To use it, insert
	  calls to bootstage_mark() with a suitable BOOTSTAGE_ID from
	  bootstage.h. Only a single entry is recorded for each ID. You can
	  give the entry a name with bootstage_mark_name(). You can also
	  record elapsed time in a particular stage using bootstage_start()
	  before starting and bootstage_accum() when finished. Bootstage will
	  add up all the accumated time and report it.

	  Normally, IDs are defined in bootstage.h but a small number of
	  additional 'user' IDs can be used but passing BOOTSTAGE_ID_ALLOC
	  as the ID.

	  Calls to show_boot_progress() wil also result in log entries but
	  these will not have names.

config BOOTSTAGE_REPORT
	bool "Display a detailed boot timing report before booting the OS"
	depends on BOOTSTAGE
	help
	  Enable output of a boot time report just before the OS is booted.
	  This shows how long it took U-Boot to go through each stage of the
	  boot process. The report looks something like this:

		Timer summary in microseconds:
		       Mark    Elapsed  Stage
			  0          0  reset
		  3,575,678  3,575,678  board_init_f start
		  3,575,695         17  arch_cpu_init A9
		  3,575,777         82  arch_cpu_init done
		  3,659,598     83,821  board_init_r start
		  3,910,375    250,777  main_loop
		 29,916,167 26,005,792  bootm_start
		 30,361,327    445,160  start_kernel

config BOOTSTAGE_USER_COUNT
	hex "Number of boot ID numbers available for user use"
	default 20
	help
	  This is the number of available user bootstage records.
	  Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...)
	  a new ID will be allocated from this stash. If you exceed
	  the limit, recording will stop.

config BOOTSTAGE_FDT
	bool "Store boot timing information in the OS device tree"
	depends on BOOTSTAGE
	help
	  Stash the bootstage information in the FDT. A root 'bootstage'
	  node is created with each bootstage id as a child. Each child
	  has a 'name' property and either 'mark' containing the
	  mark time in microsecond, or 'accum' containing the
	  accumulated time for that bootstage id in microseconds.
	  For example:

		bootstage {
			154 {
				name = "board_init_f";
				mark = <3575678>;
			};
			170 {
				name = "lcd";
				accum = <33482>;
			};
		};

	  Code in the Linux kernel can find this in /proc/devicetree.

config BOOTSTAGE_STASH
	bool "Stash the boot timing information in memory before booting OS"
	depends on BOOTSTAGE
	help
	  Some OSes do not support device tree. Bootstage can instead write
	  the boot timing information in a binary format at a given address.
	  This happens through a call to bootstage_stash(), typically in
	  the CPU's cleanup_before_linux() function. You can use the
	  'bootstage stash' and 'bootstage unstash' commands to do this on
	  the command line.

config BOOTSTAGE_STASH_ADDR
	hex "Address to stash boot timing information"
	default 0
	help
	  Provide an address which will not be overwritten by the OS when it
	  starts, so that it can read this information when ready.

config BOOTSTAGE_STASH_SIZE
	hex "Size of boot timing stash region"
	default 4096
	help
	  This should be large enough to hold the bootstage stash. A value of
	  4096 (4KiB) is normally plenty.

endmenu

config BOOTDELAY
	int "delay in seconds before automatically booting"
	default 0
	help
	  Delay before automatically running bootcmd;
	  set to -1 to disable autoboot.
	  set to -2 to autoboot with no delay and not check for abort
	  (even when CONFIG_ZERO_BOOTDELAY_CHECK is defined).

config CONSOLE_RECORD
	bool "Console recording"
	help
	  This provides a way to record console output (and provide console
	  input) through cirular buffers. This is mostly useful for testing.
	  Console output is recorded even when the console is silent.
	  To enable console recording, call console_record_reset_enable()
	  from your code.

config CONSOLE_RECORD_OUT_SIZE
	hex "Output buffer size"
	depends on CONSOLE_RECORD
	default 0x400 if CONSOLE_RECORD
	help
	  Set the size of the console output buffer. When this fills up, no
	  more data will be recorded until some is removed. The buffer is
	  allocated immediately after the malloc() region is ready.

config CONSOLE_RECORD_IN_SIZE
	hex "Input buffer size"
	depends on CONSOLE_RECORD
	default 0x100 if CONSOLE_RECORD
	help
	  Set the size of the console input buffer. When this contains data,
	  tstc() and getc() will use this in preference to real device input.
	  The buffer is allocated immediately after the malloc() region is
	  ready.
Commit	Line	Data
ee2b2434 SG	1	menu "Boot timing"
	2
	3	config BOOTSTAGE
	4	bool "Boot timing and reporting"
	5	help
	6	Enable recording of boot time while booting. To use it, insert
	7	calls to bootstage_mark() with a suitable BOOTSTAGE_ID from
	8	bootstage.h. Only a single entry is recorded for each ID. You can
	9	give the entry a name with bootstage_mark_name(). You can also
	10	record elapsed time in a particular stage using bootstage_start()
	11	before starting and bootstage_accum() when finished. Bootstage will
	12	add up all the accumated time and report it.
	13
	14	Normally, IDs are defined in bootstage.h but a small number of
	15	additional 'user' IDs can be used but passing BOOTSTAGE_ID_ALLOC
	16	as the ID.
	17
	18	Calls to show_boot_progress() wil also result in log entries but
	19	these will not have names.
	20
	21	config BOOTSTAGE_REPORT
	22	bool "Display a detailed boot timing report before booting the OS"
	23	depends on BOOTSTAGE
	24	help
	25	Enable output of a boot time report just before the OS is booted.
	26	This shows how long it took U-Boot to go through each stage of the
	27	boot process. The report looks something like this:
	28
	29	Timer summary in microseconds:
	30	Mark Elapsed Stage
	31	0 0 reset
	32	3,575,678 3,575,678 board_init_f start
	33	3,575,695 17 arch_cpu_init A9
	34	3,575,777 82 arch_cpu_init done
	35	3,659,598 83,821 board_init_r start
	36	3,910,375 250,777 main_loop
	37	29,916,167 26,005,792 bootm_start
	38	30,361,327 445,160 start_kernel
	39
	40	config BOOTSTAGE_USER_COUNT
	41	hex "Number of boot ID numbers available for user use"
	42	default 20
	43	help
	44	This is the number of available user bootstage records.
	45	Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...)
	46	a new ID will be allocated from this stash. If you exceed
	47	the limit, recording will stop.
	48
ee2b2434 SG	49	config BOOTSTAGE_FDT
	50	bool "Store boot timing information in the OS device tree"
	51	depends on BOOTSTAGE
	52	help
	53	Stash the bootstage information in the FDT. A root 'bootstage'
	54	node is created with each bootstage id as a child. Each child
	55	has a 'name' property and either 'mark' containing the
	56	mark time in microsecond, or 'accum' containing the
	57	accumulated time for that bootstage id in microseconds.
	58	For example:
	59
	60	bootstage {
	61	154 {
	62	name = "board_init_f";
	63	mark = <3575678>;
	64	};
	65	170 {
	66	name = "lcd";
	67	accum = <33482>;
	68	};
	69	};
	70
	71	Code in the Linux kernel can find this in /proc/devicetree.
	72
	73	config BOOTSTAGE_STASH
	74	bool "Stash the boot timing information in memory before booting OS"
	75	depends on BOOTSTAGE
	76	help
	77	Some OSes do not support device tree. Bootstage can instead write
	78	the boot timing information in a binary format at a given address.
	79	This happens through a call to bootstage_stash(), typically in
	80	the CPU's cleanup_before_linux() function. You can use the
	81	'bootstage stash' and 'bootstage unstash' commands to do this on
	82	the command line.
	83
	84	config BOOTSTAGE_STASH_ADDR
	85	hex "Address to stash boot timing information"
	86	default 0
	87	help
	88	Provide an address which will not be overwritten by the OS when it
	89	starts, so that it can read this information when ready.
	90
	91	config BOOTSTAGE_STASH_SIZE
	92	hex "Size of boot timing stash region"
	93	default 4096
	94	help
	95	This should be large enough to hold the bootstage stash. A value of
	96	4096 (4KiB) is normally plenty.
	97
	98	endmenu
	99
bb597c0e HS	100	config BOOTDELAY
	101	int "delay in seconds before automatically booting"
	102	default 0
	103	help
	104	Delay before automatically running bootcmd;
	105	set to -1 to disable autoboot.
	106	set to -2 to autoboot with no delay and not check for abort
	107	(even when CONFIG_ZERO_BOOTDELAY_CHECK is defined).
	108
9854a874 SG	109	config CONSOLE_RECORD
	110	bool "Console recording"
	111	help
	112	This provides a way to record console output (and provide console
	113	input) through cirular buffers. This is mostly useful for testing.
	114	Console output is recorded even when the console is silent.
	115	To enable console recording, call console_record_reset_enable()
	116	from your code.
	117
	118	config CONSOLE_RECORD_OUT_SIZE
	119	hex "Output buffer size"
	120	depends on CONSOLE_RECORD
	121	default 0x400 if CONSOLE_RECORD
	122	help
	123	Set the size of the console output buffer. When this fills up, no
	124	more data will be recorded until some is removed. The buffer is
	125	allocated immediately after the malloc() region is ready.
	126
	127	config CONSOLE_RECORD_IN_SIZE
	128	hex "Input buffer size"
	129	depends on CONSOLE_RECORD
	130	default 0x100 if CONSOLE_RECORD
	131	help
	132	Set the size of the console input buffer. When this contains data,
	133	tstc() and getc() will use this in preference to real device input.
	134	The buffer is allocated immediately after the malloc() region is
	135	ready.