Dear Xu, Hong, >> adds kernel compatible RTC handling to u-boot using the RTT >> and one GPBRegister >> ... >> arch/arm/include/asm/arch-at91/at91_gpbr.h | 45 +++++++++++++ >> arch/arm/include/asm/arch-at91/at91_rtt.h | 36 ++++++++++ >> drivers/rtc/Makefile | 1 + >> drivers/rtc/at91sam9.c | 100 > > Some of Atmel's ARM926EJS chips have builtin RTC, for example, SAM9G45 > SAM9M10 SAM9RL and new X5 serials. > May we take this into account at this stage? > > We can use big #ifdef to add real RTC support in drivers/rtc/at91sam9.c
I don't think that makes sense, assuming the "real rtc" uses registers that count like HHMMSS DDMMYY. It would be completely different code. > - or - > > We can rename drivers/rtc/at91sam9.c to , for example, > drivers/rtc/at91sam9_rtt.c, and let drivers/rtc/at91sam9.c for the real RTC > support. I'd go with that, and even suggest naming the maybe upcoming "real rtc" driver at91sam9_rtc.c to give a clearer indication of the different approaches. Besides, for LinuX the rtt makes more sense since it directly counts in seconds since epoch. Thanks Reinhard _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
