Hi Sascha, Sascha Hauer wrote: > On Thu, Jun 21, 2012 at 11:16:18AM +0200, Juergen Beisert wrote: > > These are examples how to provide the reset source. Not really tested on > > the corresponding hardware yet. > > I did. On i.MX1 it does not work. The reset source register is not > inside the watchdog module, but at 0x0021b800 (Reset source register, > RSR) Hmm, in my old MC9328MX1 manual the watchdog register at 0x201008 (=Watchdog Status Register) reports in bit 0 (=TOUT) if the watchdog timed out. But the RSR seems a more reliable source to read the status. > On i.MX27 it correctly detects a watchdog reset but not a power on > reset. On i.MX27 it must be: > > # define WDOG_WRSR_EXT (1 << 3) > # define WDOG_WRSR_PWR (1 << 4) Ups, sure. "not really tested"...I told you so ;) > i.MX51 does not seem to have a power-on-reset bit, at least not in the > watchdog module. I didn't check the other i.MXs Time for a #ifdef hell? jbe -- Pengutronix e.K. | Juergen Beisert | Linux Solutions for Science and Industry | http://www.pengutronix.de/ | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
