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| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-01-14 17:00:02 +0100 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-01-14 17:00:02 +0100 |
| commit | a17617d6553369ba72c080128ed8d0b0c33dfc89 (patch) | |
| tree | c8903ddc48e628192c56cc95667f702fd1d77c6e /doc | |
| parent | 1199c377cf14c240b903e351ab02b3b2cd3800c6 (diff) | |
| parent | 11d80af4876b609832856853b63d06a1011bccf1 (diff) | |
| download | u-boot-a17617d6553369ba72c080128ed8d0b0c33dfc89.tar.gz u-boot-a17617d6553369ba72c080128ed8d0b0c33dfc89.tar.xz u-boot-a17617d6553369ba72c080128ed8d0b0c33dfc89.zip | |
Merge branch 'u-boot-imx/master' into 'u-boot-arm/master'
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/README.watchdog | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/doc/README.watchdog b/doc/README.watchdog new file mode 100644 index 0000000000..ee65008b4b --- /dev/null +++ b/doc/README.watchdog @@ -0,0 +1,29 @@ +Watchdog driver general info + +CONFIG_HW_WATCHDOG + This enables hw_watchdog_reset to be called during various loops, + including waiting for a character on a serial port. But it + does not also call hw_watchdog_init. Boards which want this + enabled must call this function in their board file. This split + is useful because some rom's enable the watchdog when downloading + new code, so it must be serviced, but the board would rather it + was off. And, it cannot always be turned off once on. + +CONFIG_WATCHDOG_TIMEOUT_MSECS + Can be used to change the timeout for i.mx31/35/5x/6x. + If not given, will default to maximum timeout. This would + be 128000 msec for i.mx31/35/5x/6x. + +CONFIG_AT91SAM9_WATCHDOG + Available for AT91SAM9 to service the watchdog. + +CONFIG_FTWDT010_WATCHDOG + Available for FTWDT010 to service the watchdog. + +CONFIG_FTWDT010_HW_TIMEOUT + Can be used to change the timeout for FTWDT010. + +CONFIG_IMX_WATCHDOG + Available for i.mx31/35/5x/6x to service the watchdog. This is not + automatically set because some boards (vision2) still need to define + their own hw_watchdog_reset routine. |