This series creates a simple boot progress timing feature in U-Boot.
Previous discussion on this is here:
http://lists.denx.de/pipermail/u-boot/2011-May/thread.html#92584
A request was made to unify this with show_boot_progress(). As discussed in the v1 RFC patch, this series addresses this the following way:
1. Create bootstage.h with the intent of replacing integers with enums. This will allow the values to be easily changed or rationalised later as required. It also makes it more explicit that (for example) 15 means we are about to run an OS.
2. Change show_boot_progress() to use these enums. This first patch just shows doing this with one (commonly used) integer value.
3. Create bootstage.c file which permits recording of bootstage timestamps.
4. Change the existing show_boot_progress() handlers within board files to use a provided bootstage progress handler instead. This is easy enough as there are few users.
5. Change show_boot_progress() to call into bootstage, which in turns calls the board-provided progress handler, if defined, after recording a timestamp. The function signature will stay the same for now.
Ultimately I would like boot timing available from before U-Boot to user space in Linux. See RFC patch for Linux here:
http://lwn.net/Articles/460432/
and discussion here:
http://comments.gmane.org/gmane.linux.kernel/1194861
Still to do: change the microsecond time printout to use the Linux seconds.microseconds format.
Changes in v2: - Unify show_boot_progress() into this series
Changes in v3: - Adjust show_boot_progress() comment - Fix 'progres' typo - Fix code style in bootstage_mark_name() - Make main bootstage commit title more explicit - Move file comment above copyright message - Rename timer patch to remove bootstage: tag - Set BOOTSTAGE_ID_START to 0 explicitly - Update commit message to clarify the purpose of CONFIG_BOOTSTAGE_REPORT
Simon Glass (15): bootstage: Create an initial header for boot progress integers bootstage: Make use of BOOTSTAGE_ID_RUN_OS in show_boot_progress() bootstage: Use show_boot_error() for -ve progress numbers bootstage: Convert progress numbers 1-9 into enums bootstage: Convert progress numbers 10-19 to enums bootstage: Convert progress numbers 20-41 to enums bootstage: Convert IDE progress numbers to enums bootstage: Convert NAND progress numbers to enums bootstage: Convert net progress numbers to enums bootstage: Convert FIT progress numbers to enums timer: add microsecond boot func bootstage: Replace show_boot_progress/error() with bootstage_...() bootstage: Implement core microsecond boot time measurement bootstage: Plumb in bootstage calls for basic operations bootstage: arm: Add bootstage calls in board and bootm
README | 25 +++ arch/arm/lib/board.c | 3 + arch/arm/lib/bootm.c | 6 +- arch/avr32/lib/bootm.c | 2 +- arch/m68k/lib/bootm.c | 2 +- arch/microblaze/lib/bootm.c | 2 +- arch/mips/lib/bootm.c | 2 +- arch/mips/lib/bootm_qemu_mips.c | 2 +- arch/nds32/lib/bootm.c | 2 +- arch/powerpc/lib/board.c | 2 +- arch/powerpc/lib/bootm.c | 2 +- arch/sparc/lib/board.c | 2 +- arch/x86/lib/board.c | 19 +-- board/Seagate/dockstar/dockstar.c | 4 +- board/a4m072/a4m072.c | 2 +- board/bf533-stamp/bf533-stamp.c | 30 ++-- board/hermes/hermes.c | 8 +- board/ivm/ivm.c | 2 +- board/matrix_vision/common/mv_common.c | 2 +- board/matrix_vision/mvbc_p/mvbc_p.c | 8 +- board/pcs440ep/pcs440ep.c | 50 +++--- board/scb9328/scb9328.c | 6 - board/sixnet/sixnet.c | 2 +- board/ti/beagle/beagle.c | 2 +- common/Makefile | 1 + common/bootstage.c | 160 ++++++++++++++++++++ common/cmd_bootm.c | 95 ++++++------ common/cmd_ide.c | 46 +++--- common/cmd_nand.c | 34 ++-- common/cmd_net.c | 23 ++- common/cmd_usb.c | 1 + common/env_common.c | 2 +- common/image.c | 56 ++++---- include/bootstage.h | 259 ++++++++++++++++++++++++++++++++ include/common.h | 13 +- lib/time.c | 17 ++ net/bootp.c | 4 + net/eth.c | 6 +- net/net.c | 1 + post/post.c | 4 +- 40 files changed, 697 insertions(+), 212 deletions(-) create mode 100644 common/bootstage.c create mode 100644 include/bootstage.h