MPC5200 ppc_md.set_rtc_time

DISCUSSION bennett78 2 participants 5 messages Dec 16, 2005

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Andrey Volkov

2005-12-16 11:04 UTC #1 lore raw

Hello Frank,

Quoted 33 lines · bennett78 wrote:

Hi:
How / when does "ppc_md.set_rtc_time" get filled
in for Lite5200?
Config for support /dev/rtc enables CONFIG_PPC_RTC which enable driver/char/rtc.c which mentions CMOS_WRITE panics the kernel!
I trying to use driver/char/genrtc.c. I can set date
but not hwclock.
Quoted 1 line
hwclock --set --date="9/22/96 16:45:05"
gen_set_rtc_irq_bit:exit
gen_rtc_ioctl RTC_SET_TIME 00000060
RTC_SET_TIME: Invalid argument
ioctl() to /dev/rtc to set the time failed.
bash-2.05b# cat /proc/driver/rtc
rtc_time : 00:50339648:36914
rtc_date : -1072186980-497--1073718072
rtc_epoch : 1900
alarm : 00:00:00
DST_enable : no
BCD : yes
24hr            : yes
square_wave     : no
alarm_IRQ       : no
update_IRQ      : no  <----- how can I hook one?
periodic_IRQ    : no
periodic_freq   : 0
batt_status     : okay

Quoted 4 lines

thanks,
*/Frank Bennett
/*

For 2.6 kernel, check arch/ppc/syslib/lite5200.c, especially platform_init() (at the end of file).

--
Regards
Andrey Volkov

bennett78

author

2005-12-16 15:33 UTC #2 lore raw

Quoted 42 lines · Andrey Volkov

Hello Frank,
Quoted 37 lines · bennett78 wrote:
Hi:
How / when does "ppc_md.set_rtc_time" get filled
in for Lite5200?
Config for support /dev/rtc enables CONFIG_PPC_RTC which enable driver/char/rtc.c which mentions CMOS_WRITE panics the kernel!
I trying to use driver/char/genrtc.c. I can set date
but not hwclock.
Quoted 3 lines
hwclock --set --date="9/22/96 16:45:05"
gen_set_rtc_irq_bit:exit
gen_rtc_ioctl RTC_SET_TIME 00000060
RTC_SET_TIME: Invalid argument
ioctl() to /dev/rtc to set the time failed.
bash-2.05b# cat /proc/driver/rtc
rtc_time : 00:50339648:36914
rtc_date : -1072186980-497--1073718072
rtc_epoch : 1900
alarm : 00:00:00
DST_enable : no
BCD : yes
24hr            : yes
square_wave     : no
alarm_IRQ       : no
update_IRQ      : no  <----- how can I hook one?
periodic_IRQ    : no
periodic_freq   : 0
batt_status     : okay

Quoted 10 lines

Quoted 6 lines
thanks,
*/Frank Bennett
/*
For 2.6 kernel, check arch/ppc/syslib/lite5200.c, especially platform_init() (at the end of file).

Andrey:
Thanks, sorry I forgot to mention I'm on DENX linuxppc_2_4_devel.
Where is the linuxppc 2.6.x distribution?
Is anyone maintaining a checklist of working features for imbedded 2.6? Is this mail list searchable? (other than a month at a time?)

Merry Christmas
Frank Bennett

Quoted 14 lines

--
Regards
Andrey Volkov
_______________________________________________
Linuxppc-embedded mailing list
[email protected]
https://ozlabs.org/mailman/listinfo/linuxppc-embedded

bennett78

author

2005-12-16 15:42 UTC #3 lore raw

Quoted 46 lines · bennett78 wrote:

Quoted 44 lines · Andrey Volkov
Hello Frank,
Quoted 39 lines · bennett78 wrote:
Hi:
How / when does "ppc_md.set_rtc_time" get filled
in for Lite5200?
Config for support /dev/rtc enables CONFIG_PPC_RTC which enable driver/char/rtc.c which mentions CMOS_WRITE panics the kernel!
I trying to use driver/char/genrtc.c. I can set date
but not hwclock.
Quoted 3 lines
hwclock --set --date="9/22/96 16:45:05"
gen_set_rtc_irq_bit:exit
gen_rtc_ioctl RTC_SET_TIME 00000060
RTC_SET_TIME: Invalid argument
ioctl() to /dev/rtc to set the time failed.
bash-2.05b# cat /proc/driver/rtc
rtc_time : 00:50339648:36914
rtc_date : -1072186980-497--1073718072
rtc_epoch : 1900
alarm : 00:00:00
DST_enable : no
BCD : yes
24hr            : yes
square_wave     : no
alarm_IRQ       : no
update_IRQ      : no  <----- how can I hook one?
periodic_IRQ    : no
periodic_freq   : 0
batt_status     : okay
thanks,

Quoted 8 lines

Quoted 8 lines
Quoted 4 lines
*/Frank Bennett
/*
For 2.6 kernel, check arch/ppc/syslib/lite5200.c, especially platform_init() (at the end of file).

is this your point?
linux-2.6.12/arch/ppc/platforms/lite5200.c

     /* No time keeper on the LITE5200 */

ppc_md.time_init = NULL;
ppc_md.get_rtc_time = NULL;
ppc_md.set_rtc_time = NULL;

I don't see any arch/ppc/syslib/lite5200.c

Quoted 34 lines

Quoted 2 lines
Andrey:
Thanks, sorry I forgot to mention I'm on DENX linuxppc_2_4_devel.
Where is the linuxppc 2.6.x distribution?
Is anyone maintaining a checklist of working features for imbedded 2.6? Is this mail list searchable? (other than a month at a time?)
Merry Christmas
Frank Bennett
Quoted 7 lines
--
Regards
Andrey Volkov
Quoted 7 lines
_______________________________________________
Linuxppc-embedded mailing list
[email protected]
https://ozlabs.org/mailman/listinfo/linuxppc-embedded
------------------------------------------------------------------------
_______________________________________________
Linuxppc-embedded mailing list
[email protected]
https://ozlabs.org/mailman/listinfo/linuxppc-embedded

Andrey Volkov

2005-12-16 16:13 UTC #4 lore raw

Quoted 56 lines · bennett78 wrote:

Quoted 46 lines · bennett78 wrote:
Quoted 44 lines · Andrey Volkov
Hello Frank,
Quoted 39 lines · bennett78 wrote:
Hi:
How / when does "ppc_md.set_rtc_time" get filled
in for Lite5200?
Config for support /dev/rtc enables CONFIG_PPC_RTC which enable driver/char/rtc.c which mentions CMOS_WRITE panics the kernel!
I trying to use driver/char/genrtc.c. I can set date
but not hwclock.
Quoted 3 lines
hwclock --set --date="9/22/96 16:45:05"
gen_set_rtc_irq_bit:exit
gen_rtc_ioctl RTC_SET_TIME 00000060
RTC_SET_TIME: Invalid argument
ioctl() to /dev/rtc to set the time failed.
bash-2.05b# cat /proc/driver/rtc
rtc_time : 00:50339648:36914
rtc_date : -1072186980-497--1073718072
rtc_epoch : 1900
alarm : 00:00:00
DST_enable : no
BCD : yes
24hr            : yes
square_wave     : no
alarm_IRQ       : no
update_IRQ      : no  <----- how can I hook one?
periodic_IRQ    : no
periodic_freq   : 0
batt_status     : okay
thanks,
Quoted 8 lines
Quoted 8 lines
Quoted 4 lines
*/Frank Bennett
/*
For 2.6 kernel, check arch/ppc/syslib/lite5200.c, especially platform_init() (at the end of file).

Quoted 7 lines

is this your point?
linux-2.6.12/arch/ppc/platforms/lite5200.c

      /* No time keeper on the LITE5200 */
    ppc_md.time_init    = NULL;
    ppc_md.get_rtc_time = NULL;
    ppc_md.set_rtc_time = NULL;

Yes.

Quoted 1 line

I don't see any arch/ppc/syslib/lite5200.c

But, sorry, from which file are you quotating prev code ;)?

Quoted 6 lines

Quoted 6 lines
Quoted 3 lines
Andrey:
Thanks, sorry I forgot to mention I'm on DENX linuxppc_2_4_devel.
Where is the linuxppc 2.6.x distribution?

Check here http://www.denx.de/cgi-bin/gitweb.cgi?p=linux-2.6-denx.git

Quoted 3 lines

Quoted 3 lines
Is anyone maintaining a checklist of working features for imbedded 2.6? Is this mail list searchable? (other than a month at a time?)

AFAIK - no. By very simple reason - all drivers in vanilla kernel MUST be work, if some code not in Linus git, then it (usually) unstable or in the pending stage.

--
Regards
Andrey Volkov