From 3a608ca01d76e8cb90dcc8dc1a22cde98cdca3ab Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Mon, 13 Feb 2012 13:51:19 +0000 Subject: bootstage: Implement core microsecond boot time measurement This defines the basics of a new boot time measurement feature. This allows logging of very accurate time measurements as the boot proceeds, by using an available microsecond counter. To enable the feature, define CONFIG_BOOTSTAGE in your board config file. Also available is CONFIG_BOOTSTAGE_REPORT which will cause a report to be printed just before handing off to the OS. Most IDs are not named at this stage. For that I would first like to renumber them all. Timer summary in microseconds: Mark Elapsed Stage 0 0 reset 205,000 205,000 board_init_f 6,053,000 5,848,000 bootm_start 6,053,000 0 id=1 6,058,000 5,000 id=101 6,058,000 0 id=100 6,061,000 3,000 id=103 6,064,000 3,000 id=104 6,093,000 29,000 id=107 6,093,000 0 id=106 6,093,000 0 id=105 6,093,000 0 id=108 7,089,000 996,000 id=7 7,089,000 0 id=15 7,089,000 0 id=8 7,097,000 8,000 start_kernel Signed-off-by: Simon Glass --- common/Makefile | 1 + 1 file changed, 1 insertion(+) (limited to 'common/Makefile') diff --git a/common/Makefile b/common/Makefile index 2a31c6285b5..fd9b3b053d7 100644 --- a/common/Makefile +++ b/common/Makefile @@ -172,6 +172,7 @@ SPD := y endif COBJS-$(SPD) += ddr_spd.o COBJS-$(CONFIG_HWCONFIG) += hwconfig.o +COBJS-$(CONFIG_BOOTSTAGE) += bootstage.o COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o COBJS-y += flash.o COBJS-$(CONFIG_CMD_KGDB) += kgdb.o kgdb_stubs.o -- cgit v1.2.3