On Thu, 20 Sep 2007 17:09:15 +0800 Andrew Liu <[EMAIL PROTECTED]> wrote:
> Hello All, > The same u-boot/kernel/rootfs on fsl_mp8313E RDB REVA 2, DS1337 RTC > chip can work, > but on sl_mp8313E RDB REVA 3, it doesn't work, its time don't change. > > This RTC chip specific bad behavior on sl_mp8313E RDB REVA 3 as follows: > (1) On U-Boot (from Freescale), run command: > => i2c md 0x68 0x0 > 0000: 32 33 10 04 20 89 08 84 00 20 53 00 42 16 18 80 23.. .... S.B... looks like your oscillator is turned off (80 in status reg). There are many reasons this can happen - google for 'dallas 1337 rtc' for the chip's documentation to help you diagnose. Kim _______________________________________________ Linuxppc-embedded mailing list [email protected] https://ozlabs.org/mailman/listinfo/linuxppc-embedded
