Commit graph

6 commits

Author SHA1 Message Date
Andy Shevchenko
05f310e26f x86/sfi: Enable enumeration of SD devices
SFI specification v0.8.2 defines type of devices which are connected to
SD bus. In particularly WiFi dongle is a such.

Add a callback to enumerate the devices connected to SD bus.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1468322192-62080-1-git-send-email-andriy.shevchenko@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-07-13 09:24:51 +02:00
David Cohen
40a96d54ee intel_mid: Move platform device setups to their own platform_<device>.* files
As Intel rolling out more SoC's after Moorestown, we need to
re-structure the code in a way that is backward compatible and easy to
expand. This patch implements a flexible way to support multiple boards
and devices.

This patch does not add any new functional support. It just refactors
the existing code to increase the modularity and decrease the code
duplication for supporting multiple soc's and boards.

Currently intel-mid.c has both board and soc related code in one file.
This patch moves the board related code to new files and let linker
script to create SFI devite table following this:

1. Move the SFI device specific code to
   arch/x86/platform/intel-mid/device-libs/platform_<device>.*
   A new device file is added for every supported device. This code will
   get conditionally compiled by using corresponding device driver
   CONFIG option.

2. Move the device_ids location to .x86_intel_mid_dev.init section by
   using new sfi_device() macro.

This patch was based on previous code from Sathyanarayanan Kuppuswamy.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-13-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2013-10-17 16:41:50 -07:00
Feng Tang
1da4b1c6a4 x86/mrst: Add SFI platform device parsing code
SFI provides a series of tables. These describe the platform devices present
including SPI and I²C devices, as well as various sensors, keypads and other
glue as well as interfaces provided via the SCU IPC mechanism (intel_scu_ipc.c)

This patch is a merge of the core elements and relevant fixes from the
Intel development code by Feng, Alek, myself into a single coherent patch
for upstream submission.

It provides the needed infrastructure to register I2C, SPI and platform devices
described by the tables, as well as handlers for some of the hardware already
supported in kernel. The 0.8 firmware also provides GPIO tables.

Devices are created at boot time or if they are SCU dependant at the point an
SCU is discovered. The existing Linux device mechanisms will then handle the
device binding. At an abstract level this is an SFI to Linux device translator.

Device/platform specific setup/glue is in this file. This is done so that the
drivers for the generic I²C and SPI bus devices remain cross platform as they
should.

(Updated from RFC version to correct the emc1403 name used by the firmware
 and a wrongly used #define)

Signed-off-by: Alek Du <alek.du@linux.intel.com>
LKML-Reference: <20101109112158.20013.6158.stgit@localhost.localdomain>
[Clean ups, removal of 0.7 support]
Signed-off-by: Feng Tang <feng.tang@linux.intel.com>
[Clean ups]
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2010-11-09 14:45:52 +01:00
Feng Tang
82acf2a8fe SFI: remove the v0.7 related definitions from sfi.h
SFI v0.8's DEVS and GPIO tables replaces v0.7's SPI/I2C tables.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-10-18 23:57:06 -04:00
Feng Tang
5487ab4a5a SFI: add support for v0.81 spec
There are 2 major changes from v0.81 to v0.7:
1. Consolidating the SPIB/I2CB tables into a new DEVS table,
   which is more expandable and can support other bus types
   than spi/i2c.
2. Creating a new GPIO table, which list all the GPIO pins
   used in the platform.

However, to avoid breaking current platforms who use SFI v0.7
version firmware, the definitions for SPIB/I2CB will still
be kept for a while

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-25 11:41:43 -04:00
Feng Tang
117a9ac777 SFI: create linux/sfi.h
include/linux/include/sfi.h defines everything that customers
of SFI need to know in order to use the SFI suport in the kernel.

The primary API is sfi_table_parse(), where a driver or another part
of the kernel can supply a handler to parse the named table.

sfi.h also includes the currently defined table signatures and table
formats.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-08-28 19:57:30 -04:00