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Diffstat (limited to 'qemu/roms/u-boot/doc/README.watchdog')
| -rw-r--r-- | qemu/roms/u-boot/doc/README.watchdog | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/doc/README.watchdog b/qemu/roms/u-boot/doc/README.watchdog new file mode 100644 index 000000000..59f306b85 --- /dev/null +++ b/qemu/roms/u-boot/doc/README.watchdog @@ -0,0 +1,35 @@ +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. + +CONFIG_XILINX_TB_WATCHDOG + Available for Xilinx Axi platforms to service timebase watchdog timer. + +CONFIG_BFIN_WATCHDOG + Available for bf5xx and bf6xx to service the watchdog. |