Re: 2.6.26.8-rt12 - No hwclock - works under 2.6.24-rt1

[Clark Williams <williams@redhat.com>]

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On Sat, 31 Jan 2009 09:58:28 -0800
Mark Knecht <markknecht@gmail.com> wrote:
> 
> Clark,
>    CONFIG_RTC_DRV_CMOS=y is set. However all of the specific chip
> versions immediately below it are not set so without at least one of
> those is the CONFIG_RTC_DRV_CMOS doing anything?
> 
>    If by change I need to set at least one of those chip options how
> do I determine what's on this motherboard?
> 
>    Scanning around this area I also notice that I've going none of the
> I2C RTC drivers selected either.
> 
>    I haven't had time to check yet but the 2.6.27-gentoo-r8 kernel
> didn't have this problem. I'll compare .config files between the two
> and see what differences I can find.
> 
> Thanks,
> Mark

Mark,

I don't have any of the platform drivers set for my laptop (Lenovo T60)
other than the CMOS driver.  None of the I2C or SPI drivers set. I
still think you need to look at what device the startup scripts are
looking for (probably /dev/rtc).

Here's a snippet of my config:

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 is not set

#
# 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

#
# SPI RTC drivers
#
#
# Platform RTC drivers
#
CONFIG_RTC_DRV_CMOS=y
# 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_M48T59 is not set
# CONFIG_RTC_DRV_V3020 is not set


Clark
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