[PATCH 1/6] [POWERPC] sysdev: implement FSL GTM support

[Kumar Gala]

On Apr 29, 2008, at 2:00 PM, Anton Vorontsov wrote:
> GTM stands for General-purpose Timers Module and able to generate
> timer{1,2,3,4} interrupts. These timers are used by the drivers that
> need time precise interrupts (like for USB transactions scheduling for
> the Freescale USB Host controller as found in some QE and CPM chips),
> or these timers could be used as wakeup events from the CPU deep-sleep
> mode.
>
> Things unimplemented:
> 1. Cascaded (32 bit) timers (1-2, 3-4).
>   This is straightforward to implement when needed, two timers should
>   be marked as "requested" and configured as appropriate.
> 2. Super-cascaded (64 bit) timers (1-2-3-4).
>   This is also straightforward to implement when needed, all timers
>   should be marked as "requested" and configured as appropriate.
>
> Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
> ---
> Documentation/powerpc/booting-without-of.txt |   37 +++-
> arch/powerpc/Kconfig                         |    5 +
> arch/powerpc/sysdev/Makefile                 |    1 +
> arch/powerpc/sysdev/fsl_gtm.c                |  424 +++++++++++++++++ 
> +++++++++
> include/asm-powerpc/fsl_gtm.h                |   47 +++
> 5 files changed, 513 insertions(+), 1 deletions(-)
> create mode 100644 arch/powerpc/sysdev/fsl_gtm.c
> create mode 100644 include/asm-powerpc/fsl_gtm.h
>
>

>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index 4e40c12..4070a78 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -538,6 +538,11 @@ config FSL_LBC
> 	help
> 	  Freescale Localbus support
>
> +config FSL_GTM
> +	bool
> +	help
> +	  Freescale General-purpose Timers support
> +

what chips actually use this?  just QE or 83xx?

- k