Messages in this thread | | | Date | Sat, 15 Mar 2014 21:04:15 +0100 | From | Wim Van Sebroeck <> | Subject | Re: [PATCH 4/8] mfd: lpc_ich: Add support for iTCO v3 |
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Hi Peter,
> Some newer Atom CPUs, eg Avoton and Bay Trail, use slightly different > register layouts for the iTCO than the current v1 and v2 iTCO. > Differences from previous iTCO versions include: > - The ACPI space is enabled in the "ACPI base address" register instead > of the "ACPI control register" > > - The "no reboot" functionality is set in the "Power Management > Configuration" register instead of the "General Control and Status" > (GCS) register or PCI configuration space. > > - The "ACPI Control Register" is not present on v3. The "Power > Management Configuration Base Address" register resides at the same > address is Avoton/Bay Trail. > > To differentiate these newer chipsets create a new v3 iTCO version and > update the MFD driver to support them. > > Signed-off-by: Peter Tyser <ptyser@xes-inc.com> > Tested-by: Rajat Jain <rajatjain@juniper.net> > Cc: Guenter Roeck <linux@roeck-us.net> > Cc: James Ralston <james.d.ralston@intel.com> > Cc: Samuel Ortiz <sameo@linux.intel.com> > Cc: Lee Jones <lee.jones@linaro.org> > Cc: Wim Van Sebroeck <wim@iguana.be> > Cc: linux-watchdog@vger.kernel.org > --- > drivers/mfd/lpc_ich.c | 81 +++++++++++++++++++++++++++++++++++------- > include/linux/mfd/lpc_ich.h | 8 ++-- > 2 files changed, 71 insertions(+), 18 deletions(-) >
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Kind regards, Wim.
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