Problem with setting Kernel for RTC with SAM9260

[impet14]

Any can help me to use RTC with SAM9260?

Thanks in advance.

 

[amraldo]

Re: Please help with RTC

What type of help?
--
Amr

 

[impet14]

Re: Please help with RTC

for internal RTC ,how to set kernel?

 

[amraldo]

Re: Please help with RTC

What Kernel? Are you talking about linux Kernel?
--
Amr

 

[impet14]

Re: Please help with RTC

yes,linux kernel.

 

[amraldo]

Re: Please help with RTC

Is its driver enabled in the kernel?
--
Amr

 

[impet14]

Re: Please help with RTC

I've enabled RTC

 

[amraldo]

Re: Please help with RTC

So, Your program is in programming RTC. You need an example program right?
--
Amr

 

[impet14]

Re: Please help with RTC

I set the kernel configuration as

#
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"
CONFIG_RTC_DEBUG=y

#
# RTC interfaces
#
CONFIG_RTC_INTF_SYSFS=y
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y
# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set
CONFIG_RTC_DRV_TEST=y

#
# I2C RTC drivers
#
# CONFIG_RTC_DRV_DS1307 is not set
# CONFIG_RTC_DRV_DS1374 is not set
# CONFIG_RTC_DRV_DS1672 is not set
# CONFIG_RTC_DRV_MAX6900 is not set
# CONFIG_RTC_DRV_RS5C372 is not set
# CONFIG_RTC_DRV_ISL1208 is not set
# CONFIG_RTC_DRV_X1205 is not set
# CONFIG_RTC_DRV_PCF8563 is not set
# CONFIG_RTC_DRV_PCF8583 is not set
# CONFIG_RTC_DRV_M41T80 is not set
# CONFIG_RTC_DRV_S35390A is not set
# CONFIG_RTC_DRV_FM3130 is not set
# CONFIG_RTC_DRV_RX8581 is not set
# CONFIG_RTC_DRV_RX8025 is not set

#
# SPI RTC drivers
#

#
# Platform RTC drivers
#
# CONFIG_RTC_DRV_CMOS is not set
# CONFIG_RTC_DRV_DS1286 is not set
# CONFIG_RTC_DRV_DS1511 is not set
# CONFIG_RTC_DRV_DS1553 is not set
# CONFIG_RTC_DRV_DS1742 is not set
# CONFIG_RTC_DRV_STK17TA8 is not set
# CONFIG_RTC_DRV_M48T86 is not set
# CONFIG_RTC_DRV_M48T35 is not set
# CONFIG_RTC_DRV_M48T59 is not set
# CONFIG_RTC_DRV_BQ4802 is not set
# CONFIG_RTC_DRV_V3020 is not set

#
# on-CPU RTC drivers
#
CONFIG_RTC_DRV_AT91SAM9=y
CONFIG_RTC_DRV_AT91SAM9_RTT=0
CONFIG_RTC_DRV_AT91SAM9_GPBR=0
CONFIG_DMADEVICES=y

//--------------------------------------------------------------//
booting show that
rtc-at91sam9 at91_rtt.0: rtc core: registered at91_rtt as rtc0
IRQ 1/rtc0: IRQF_DISABLED is not guaranteed on shared IRQs
rtc-at91sam9 at91_rtt.0: rtc0: SET TIME!
rtc-test rtc-test.0: rtc core: registered test as rtc1
rtc-test rtc-test.1: rtc core: registered test as rtc2
i2c /dev entries driver
i2c-gpio i2c-gpio: using pins 55 (SDA) and 56 (SCL)
Registered led device: led_stat
Registered led device: led_pwr
TCP cubic registered
Initializing XFRM netlink socket
NET: Registered protocol family 17
NET: Registered protocol family 15
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
rtc-at91sam9 at91_rtt.0: hctosys: unable to read the hardware clock

Added after 5 minutes:

and I've got
sam9-l9260:~# hwclock --date "28 JUN 2010 17:28"
RTC_RD_TIME: Invalid or incomplete multibyte or wide character
ioctl() to /dev/rtc to read the time failed.