14 Jun, 2020
1 commit
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Since commit 84af7a6194e4 ("checkpatch: kconfig: prefer 'help' over
'---help---'"), the number of '---help---' has been gradually
decreasing, but there are still more than 2400 instances.This commit finishes the conversion. While I touched the lines,
I also fixed the indentation.There are a variety of indentation styles found.
a) 4 spaces + '---help---'
b) 7 spaces + '---help---'
c) 8 spaces + '---help---'
d) 1 space + 1 tab + '---help---'
e) 1 tab + '---help---' (correct indentation)
f) 1 tab + 1 space + '---help---'
g) 1 tab + 2 spaces + '---help---'In order to convert all of them to 1 tab + 'help', I ran the
following commend:$ find . -name 'Kconfig*' | xargs sed -i 's/^[[:space:]]*---help---/\thelp/'
Signed-off-by: Masahiro Yamada
11 Feb, 2020
1 commit
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Currently CONFIG_FSI_MASTER_ASPEED=y implicitly depends on
CONFIG_HAS_IOMEM=y; consequently, on architectures without IOMEM we get
the following build error:ld: drivers/fsi/fsi-master-aspeed.o: in function `fsi_master_aspeed_probe':
drivers/fsi/fsi-master-aspeed.c:436: undefined reference to `devm_ioremap_resource'Fix the build error by adding the unspecified dependency.
Fixes: 606397d67f41 ("fsi: Add ast2600 master driver")
Cc: stable@vger.kernel.org
Reported-by: Brendan Higgins
Signed-off-by: Brendan Higgins
Reviewed-by: Joel Stanley
Signed-off-by: Joel Stanley
Link: https://lore.kernel.org/r/20200131034832.294268-1-joel@jms.id.au
Signed-off-by: Greg Kroah-Hartman
08 Nov, 2019
1 commit
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The ast2600 BMC has a pair of FSI masters in it, behind an AHB to OPB
bridge.The master driver supports reads and writes of full words, half word and
byte accesses to remote CFAMs. It can perform very basic error recovery
through resetting of the FSI port when an error is detected, and the
issuing of breaks and terms.Signed-off-by: Joel Stanley
Acked-by: Alistair Popple
--
v2:
- remove debugging
- squash in fixes
Link: https://lore.kernel.org/r/20191108051945.7109-10-joel@jms.id.au
Signed-off-by: Greg Kroah-Hartman
21 May, 2019
1 commit
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Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:GPL-2.0-only
Signed-off-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
03 Dec, 2018
1 commit
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The OCC is a device embedded on a POWER processor that collects and
aggregates sensor data from the processor and system. The OCC can
provide the raw sensor data as well as perform thermal and power
management on the system.This driver provides an atomic communications channel between a service
processor (e.g. a BMC) and the OCC. The driver is dependent on the FSI
SBEFIFO driver to get hardware access through the SBE to the OCC SRAM.
Commands are issued to the SBE to send or fetch data to the SRAM.Signed-off-by: Eddie James
Signed-off-by: Andrew Jeffery
Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Joel Stanley
Signed-off-by: Guenter Roeck
26 Nov, 2018
1 commit
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In randconfig builds without CONFIG_GENERIC_ALLOCATOR, this driver
fails to link:ERROR: "gen_pool_alloc_algo" [drivers/fsi/fsi-master-ast-cf.ko] undefined!
ERROR: "gen_pool_fixed_alloc" [drivers/fsi/fsi-master-ast-cf.ko] undefined!
ERROR: "of_gen_pool_get" [drivers/fsi/fsi-master-ast-cf.ko] undefined!
ERROR: "gen_pool_free" [drivers/fsi/fsi-master-ast-cf.ko] undefined!Select the dependency as all other users do.
Fixes: 6a794a27daca ("fsi: master-ast-cf: Add new FSI master using Aspeed ColdFire")
Signed-off-by: Arnd Bergmann
Signed-off-by: Benjamin Herrenschmidt
27 Jul, 2018
1 commit
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The various FSI devices (sbefifo, occ, scom, more to come)
currently use misc devices.This is problematic as the minor device space for misc is
limited and there can be a lot of them. Also it limits our
ability to move them to a dedicated /dev/fsi directory or
to be smart about device naming and numbering.It also means we have IDAs on every single of these drivers
This creates a common fsi "device_type" for the optional
/dev/fsi grouping and a dev_t allocator for all FSI devices."Legacy" devices get to use a backward compatible numbering
scheme (as long as chip id
23 Jul, 2018
1 commit
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The Aspeed AST2x00 can contain a ColdFire v1 coprocessor which
is currently unused on OpenPower systems.This adds an alternative to the fsi-master-gpio driver that
uses that coprocessor instead of bit banging from the ARM
core itself. The end result is about 4 times faster.The firmware for the coprocessor and its source code can be
found at https://github.com/ozbenh/cf-fsi and is system specific.Signed-off-by: Benjamin Herrenschmidt
12 Jul, 2018
1 commit
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The driver calls of_platform_device_create() which is only available
if OF_ADDRESS is enabled. When building sparc64 images, this results
inERROR: "of_platform_device_create" [drivers/fsi/fsi-sbefifo.ko] undefined!
Fixes: 9f4a8a2d7f9d ("fsi/sbefifo: Add driver for the SBE FIFO")
Cc: Benjamin Herrenschmidt
Signed-off-by: Guenter Roeck
Signed-off-by: Benjamin Herrenschmidt
12 Jun, 2018
1 commit
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This driver provides an in-kernel and a user API for accessing
the command FIFO of the SBE (Self Boot Engine) of the POWER9
processor, via the FSI bus.It provides an in-kernel interface to submit command and receive
responses, along with a helper to locate and analyse the response
status block. It's a simple synchronous submit() type API.The user interface uses the write/read interface that an earlier
version of this driver already provided, however it has some
specific limitations in order to keep the driver simple and
avoid using up a lot of kernel memory:- The user should perform a single write() with the command and
a single read() to get the response (with a buffer big enough
to hold the entire response).- On a write() the command is simply "stored" into a kernel buffer,
it is submitted as one operation on the subsequent read(). This
allows to have the code write directly from the FIFO into the user
buffer and avoid hogging the SBE between the write() and read()
syscall as it's critical that the SBE be freed asap to respond
to the host. An extra write() will simply replace the previously
written command.- A write of a single 4 bytes containing the value 0x52534554
in big endian will trigger a reset request. No read is necessary,
the write() call will return when the reset has been acknowledged
or times out.- The command is limited to 4K bytes.
Signed-off-by: Benjamin Herrenschmidt
Tested-by: Joel Stanley
---
15 Mar, 2018
1 commit
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This change populates device tree nodes for scanned FSI slaves and
engines. If the master populates ->of_node of the FSI master device,
we'll look for matching slaves, and under those slaves we'll look for
matching engines.This means that FSI drivers will have their ->of_node pointer populated
if there's a corresponding DT node, which they can use for further
device discover.Presence of device tree nodes is optional, and only required for
fsi device drivers that need extra properties, or subordinate devices,
to be enumerated.Signed-off-by: Jeremy Kerr
Signed-off-by: Joel Stanley
Signed-off-by: Greg Kroah-Hartman
08 Dec, 2017
1 commit
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No need to get into the submenu to disable all FSI-related config entries
Signed-off-by: Vincent Legoll
Acked-by: Jeremy Kerr
Signed-off-by: Greg Kroah-Hartman
09 Jun, 2017
4 commits
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Add an engine driver to expose a "hub" FSI master - which has a set of
control registers in the engine address space, and uses a chunk of the
slave address space for actual FSI communication.Additional changes from Jeremy Kerr .
Signed-off-by: Christopher Bostic
Signed-off-by: Jeremy Kerr
Signed-off-by: Joel Stanley
Signed-off-by: Greg Kroah-Hartman -
Create a simple SCOM engine device driver that reads and writes
its control registers via an FSI bus.Includes changes from Edward A. James .
Signed-off-by: Christopher Bostic
Signed-off-by: Joel Stanley
Signed-off-by: Edward A. James
Signed-off-by: Jeremy Kerr
Signed-off-by: Greg Kroah-Hartman -
Implement a FSI master using GPIO. Will generate FSI protocol for
read and write commands to particular addresses. Sends master command
and waits for and decodes a slave response.Includes changes from Edward A. James and Jeremy
Kerr .Signed-off-by: Edward A. James
Signed-off-by: Jeremy Kerr
Signed-off-by: Christopher Bostic
Signed-off-by: Joel Stanley
Signed-off-by: Greg Kroah-Hartman -
Implement fsi_slave_init: if we can read a chip ID, create fsi_slave
devices and register with the driver core.Includes changes from Christopher Bostic .
Signed-off-by: Jeremy Kerr
Signed-off-by: Christopher Bostic
Signed-off-by: Joel Stanley
Signed-off-by: Greg Kroah-Hartman
10 Feb, 2017
1 commit
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This change adds the initial (empty) fsi bus definition, and introduces
drivers/fsi/.Signed-off-by: Jeremy Kerr
Signed-off-by: Chris Bostic
Signed-off-by: Greg Kroah-Hartman