The global utilities block controls PCIE device enabling, alternate
function selection for multiplexed signals, consistency of HDA, USB
and PCIE, configuration of memory controller, rtc controller, lio
controller, and clock control.
This patch adds a driver to manage and access global utilities block
for LoongArch architecture Loongson-2 SoCs. Initially only reading SVR
and registering soc device are supported. Other guts accesses, such
as reading firmware configuration by default, should eventually be
added into this driver as well.
Signed-off-by: Yinbo Zhu <zhuyinbo@loongson.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Register the NMI/IRQ corresponding to the A64FX's device definition
dedicated to diagnostic interrupts, so that when this interrupt is
sent using the BMC, it causes a panic. This can be used to obtain
a kernel dump.
Signed-off-by: Hitomi Hasegawa <hasegawa-hitomi@fujitsu.com>
Link: https://lore.kernel.org/r/20220520074119.3574753-2-hasegawa-hitomi@fujitsu.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
There are two drivers in arch/arm/plat-pxa: mfp and ssp. Both
of them should ideally not be needed at all, as there are
proper subsystems to replace them.
OTOH, they are self-contained and can simply be normal
SoC drivers, so move them over there to eliminate one more
of the plat-* directories.
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> (mach-pxa)
Acked-by: Lubomir Rintel <lkundrak@v3.sk> (mach-mmp)
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This driver provides an interface for other drivers to access the
functions of the system controller on the Microchip PolarFire SoC.
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20220217101349.2374873-2-conor.dooley@microchip.com
Implements genpd and reset providers for downstream devices. Each
instance of the driver binds to a single register and represents a
single SoC power domain.
The driver does not currently implement all features (clockgate-only
state, misc flags), but we declare the respective registers for
documentation purposes. These features will be added as they become
useful for downstream devices.
This also creates the apple/soc tree and Kconfig submenu.
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
I have a handful of new RISC-V related patches for this merge window:
* A check to ensure drivers are properly using uaccess. This isn't
manifesting with any of the drivers I'm currently using, but may catch
errors in new drivers.
* Some preliminary support for the FU740, along with the HiFive
Unleashed it will appear on.
* NUMA support for RISC-V, which involves making the arm64 code generic.
* Support for kasan on the vmalloc region.
* A handful of new drivers for the Kendryte K210, along with the DT
plumbing required to boot on a handful of K210-based boards.
* Support for allocating ASIDs.
* Preliminary support for kernels larger than 128MiB.
* Various other improvements to our KASAN support, including the
utilization of huge pages when allocating the KASAN regions.
We may have already found a bug with the KASAN_VMALLOC code, but it's
passing my tests. There's a fix in the works, but that will probably
miss the merge window.
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEKzw3R0RoQ7JKlDp6LhMZ81+7GIkFAmA4hXATHHBhbG1lckBk
YWJiZWx0LmNvbQAKCRAuExnzX7sYifryD/0SfXGOfj93Cxq7I7AYhhzCN7lJ5jvv
iEQScTlPqU9nfvYodo4EDq0fp+5LIPpTL/XBHtqVjzv0FqRNa28Ea0K7kO8HuXc4
BaUd0m/DqyB4Gfgm4qjc5bDneQ1ZYxVXprYERWNQ5Fj+tdWhaQGOW64N/TVodjjj
NgJtTqbIAcjJqjUtttM8TZN5U1TgwLo+KCqw3iYW12lV1YKBBuvrwvSdD6jnFdIQ
AzG/wRGZhxLoFxgBB/NEsZxDoSd6ztiwxLhS9lX4okZVsryyIdOE70Q/MflfiTlU
xE+AdxQXTMUiiqYSmHeDD6PDb57GT/K3hnjI1yP+lIZpbInsi29JKow1qjyYjfHl
9cSSKYCIXHL7jKU6pgt34G1O5N5+fgqHQhNbfKvlrQ2UPlfs/tWdKHpFIP/z9Jlr
0vCAou7NSEB9zZGqzO63uBLXoN8yfL8FT3uRnnRvoRpfpex5dQX2QqPLQ7327D7N
GUG31nd1PHTJPdxJ1cI4SO24PqPpWDWY9uaea+0jv7ivGClVadZPco/S3ZKloguT
lazYUvyA4oRrSAyln785Rd8vg4CinqTxMtIyZbRMbNkgzVQARi9a8rjvu4n9qms2
2wlXDFi8nR8B4ih5n79dSiiLM9ay9GJDxMcf9VxIxSAYZV2fJALnpK6gV2fzRBUe
+k/uv8BIsFmlwQ==
=CutX
-----END PGP SIGNATURE-----
Merge tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V updates from Palmer Dabbelt:
"A handful of new RISC-V related patches for this merge window:
- A check to ensure drivers are properly using uaccess. This isn't
manifesting with any of the drivers I'm currently using, but may
catch errors in new drivers.
- Some preliminary support for the FU740, along with the HiFive
Unleashed it will appear on.
- NUMA support for RISC-V, which involves making the arm64 code
generic.
- Support for kasan on the vmalloc region.
- A handful of new drivers for the Kendryte K210, along with the DT
plumbing required to boot on a handful of K210-based boards.
- Support for allocating ASIDs.
- Preliminary support for kernels larger than 128MiB.
- Various other improvements to our KASAN support, including the
utilization of huge pages when allocating the KASAN regions.
We may have already found a bug with the KASAN_VMALLOC code, but it's
passing my tests. There's a fix in the works, but that will probably
miss the merge window.
* tag 'riscv-for-linus-5.12-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (75 commits)
riscv: Improve kasan population by using hugepages when possible
riscv: Improve kasan population function
riscv: Use KASAN_SHADOW_INIT define for kasan memory initialization
riscv: Improve kasan definitions
riscv: Get rid of MAX_EARLY_MAPPING_SIZE
soc: canaan: Sort the Makefile alphabetically
riscv: Disable KSAN_SANITIZE for vDSO
riscv: Remove unnecessary declaration
riscv: Add Canaan Kendryte K210 SD card defconfig
riscv: Update Canaan Kendryte K210 defconfig
riscv: Add Kendryte KD233 board device tree
riscv: Add SiPeed MAIXDUINO board device tree
riscv: Add SiPeed MAIX GO board device tree
riscv: Add SiPeed MAIX DOCK board device tree
riscv: Add SiPeed MAIX BiT board device tree
riscv: Update Canaan Kendryte K210 device tree
dt-bindings: add resets property to dw-apb-timer
dt-bindings: fix sifive gpio properties
dt-bindings: update sifive uart compatible string
dt-bindings: update sifive clint compatible string
...
The ZTE ZX set-top-box SoC platform was added in 2015 by Jun Nie, with
Baoyou Xie and Shawn Guo subsequently becoming maintainers after the
addition of the 64-bit variant.
However, the only machines that were ever supported upstream are the
reference designs, not actual set-top-box devices that would benefit
from this support. All ZTE set-top-boxes from the past few years seem
to be based on third-party SoCs. While there is very little information
about zx296702 and zx296718 on the web, I found some references to other
chips from the same family, such as zx296716 and zx296719, which were
never submitted for upstream support. Finally, there is no support for
the GPU on either of them, with the lima and panfrost device drivers
having been added after work on the zx platform had stopped.
Shawn confirmed that he has not seen any interest in this platform for
the past four years, and that it can be removed.
Thanks to Jun and Shawn for maintaining this platform over the past
five years.
Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Rename configuration options and directories related to the Kendryte
K210 SoC to use the SoC vendor name (canaan) instead of the "kendryte"
branding name.
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Add support for the Kendryte K210 RISC-V SoC. For now, this support
only provides a simple sysctl driver allowing to setup the CPU and
uart clock. This support is enabled through the new Kconfig option
SOC_KENDRYTE and defines the config option CONFIG_K210_SYSCTL
to enable the K210 SoC sysctl driver compilation.
The sysctl driver also registers an early SoC initialization function
allowing enabling the general purpose use of the 2MB of SRAM normally
reserved for the SoC AI engine. This initialization function is
automatically called before the dt early initialization using the flat
dt root node compatible property matching the value "kendryte,k210".
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
[Palmer: Add missing endmenu in Kconfig.socs]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
The sifive_l2_cache.c is in no way related to RISC-V architecture
memory management. It is a little stub driver working around the fact
that the EDAC maintainers prefer their drivers to be structured in a
certain way that doesn't fit the SiFive SOCs.
Move the file to drivers/soc and add a Kconfig option for it, as well
as the whole drivers/soc boilerplate for CONFIG_SOC_SIFIVE.
Fixes: a967a289f1 ("RISC-V: sifive_l2_cache: Add L2 cache controller driver for SiFive SoCs")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Borislav Petkov <bp@suse.de>
[paul.walmsley@sifive.com: keep the MAINTAINERS change specific to the L2$ controller code]
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
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 <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Various driver updates for platforms and a couple of the small driver
subsystems we merge through our tree:
Among the larger pieces:
- Power management improvements for TI am335x and am437x (RTC suspend/wake)
- Misc new additions for Amlogic (socinfo updates)
- ZynqMP FPGA manager
- Nvidia improvements for reset/powergate handling
- PMIC wrapper for Mediatek MT8516
- Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers
-----BEGIN PGP SIGNATURE-----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=YSfu
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC-related driver updates from Olof Johansson:
"Various driver updates for platforms and a couple of the small driver
subsystems we merge through our tree:
Among the larger pieces:
- Power management improvements for TI am335x and am437x (RTC
suspend/wake)
- Misc new additions for Amlogic (socinfo updates)
- ZynqMP FPGA manager
- Nvidia improvements for reset/powergate handling
- PMIC wrapper for Mediatek MT8516
- Misc fixes/improvements for ARM SCMI, TEE, NXP i.MX SCU drivers"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (57 commits)
soc: aspeed: fix Kconfig
soc: add aspeed folder and misc drivers
spi: zynqmp: Fix build break
soc: imx: Add generic i.MX8 SoC driver
MAINTAINERS: Update email for Qualcomm SoC maintainer
memory: tegra: Fix a typos for "fdcdwr2" mc client
Revert "ARM: tegra: Restore memory arbitration on resume from LP1 on Tegra30+"
memory: tegra: Replace readl-writel with mc_readl-mc_writel
memory: tegra: Fix integer overflow on tick value calculation
memory: tegra: Fix missed registers values latching
ARM: tegra: cpuidle: Handle tick broadcasting within cpuidle core on Tegra20/30
optee: allow to work without static shared memory
soc/tegra: pmc: Move powergate initialisation to probe
soc/tegra: pmc: Remove reset sysfs entries on error
soc/tegra: pmc: Fix reset sources and levels
soc: amlogic: meson-gx-pwrc-vpu: Add support for G12A
soc: amlogic: meson-gx-pwrc-vpu: Fix power on/off register bitmask
fpga manager: Adding FPGA Manager support for Xilinx zynqmp
dt-bindings: fpga: Add bindings for ZynqMP fpga driver
firmware: xilinx: Add fpga API's
...
Create a SoC folder for the ASPEED parts and place the misc drivers
currently present into this folder. These drivers are not generic part
drivers, but rather only apply to the ASPEED SoCs.
Signed-off-by: Patrick Venture <venture@google.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
The Network Processing Engine and Queue Manager are
versatile firmware components used by several IXP4xx
drivers.
Drivers are relying on getting access to these components
using <mach/*> headers which does not work with
multiplatform. We need to find a better place for the
drivers to live.
Let's first move them to drivers/soc and the start to
refactor a bit by passing resources and moving headers.
This patch introduce static IRQ assignments but that
will be fixed by later patches in this series.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Amlogic SoCs have a SoC information register for SoC type, package type and
revision information.
This patchs adds support for this register decoding and exposing with the
SoC bus infrastructure.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This adds clock source and power domain drivers for S500/S900.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQIcBAABAgAGBQJZTUdyAAoJEPou0S0+fgE/cxIQALU/QhWWSaHwbGnavU9gKbar
lOwfoSmdwlrCR7hUCxH14o11fF03fXxWdEGz825DJjZghEIVn7VEW521DzXzA1dy
bF6s95seZXYKUwtcPERgxbRP89itr/cTZiIGnEeKFfAIU1lmd5KNYHme05+e2bcQ
G6St+8NbtqKzMaXSaDIHiHpA2ewiMmnsg9exOCcFFYCe2qUzKVOYFtbqeb+cldML
yUIfgRQnGHiVqhbzx/aSwwkmZic+j7VCwScaZEL6THJ0pem+ayuTCBdvk9LYk/aM
cksZf1Jc5RwFi6ErybpWkVBE0U2voSyNHoK10dmUy0kyS2hj3ttXjtu1yFHV/K/5
/Ebe+aUP37sMoDQn/ZcAEY1+LV4RieL/8ePeUgH1dZ/+57T4Zapq2jE2iUazotF5
VleN1Gn6UDUnPDTXUzwTSPaE2Kw85TMKVeubOy/mbJ71E1ggB02xzHkI8nhw9xMX
SzRXykR/lIrWyDufmRDiyczMhNcClgiVrxcwU0VrkgJKXrWa5Nj2xyo06GsPjftd
27P11Hi7aWFwZADw57k7h61yxVzJT9FpSp2ekYipDkgw6VAWiPvkbe90nolGI0zb
3gzWWxOZnqxk1gdfY3eTdLxAhFXituC/iSxAFSmWeLtL6OcFVQqZaJgi5MDL7vPg
afrLMF5xasvqA2+zudak
=FpP/
-----END PGP SIGNATURE-----
Merge tag 'actions-drivers-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions into next/drivers
Pull "Actions Semi SoC drivers for 4.13" from Andreas Färber:
This adds clock source and power domain drivers for S500/S900.
* tag 'actions-drivers-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/afaerber/linux-actions:
soc: actions: owl-sps: Factor out owl_sps_set_pg() for power-gating
soc: actions: Add Owl SPS
dt-bindings: power: Add Owl SPS power domains
clocksource: owl: Add S900 support
clocksource: Add Owl timer
Implement S500 Smart Power System power-gating.
For now flag PD_CPU2 and PD_CPU3 as always-on.
Based on LeMaker linux-actions tree.
Signed-off-by: Andreas Färber <afaerber@suse.de>
The goals are to:
- Allow precise control over and automatic selection of which
(sub)drivers are used for which SoC,
- Allow adding support for new SoCs easily,
- Allow compile-testing of all (sub)drivers,
- Keep driver selection logic in the subsystem-specific Kconfig,
independent from the architecture-specific Kconfig (i.e. no "select"
from arch/arm64/Kconfig.platforms), to avoid dependencies.
This is implemented by:
- Introducing Kconfig symbols for all drivers and sub-drivers,
- Introducing the Kconfig symbol SOC_RENESAS, which is enabled
automatically when building for a Renesas ARM platform, and which
enables all required drivers without interaction of the user, based
on SoC-specific ARCH_* symbols,
- Allowing the user to enable any Kconfig symbol manually if
COMPILE_TEST is enabled,
- Using the new Kconfig symbols instead of the ARCH_* symbols to
control compilation in the Makefile,
- Always entering drivers/soc/renesas/ during the build.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Driver updates for ARM SoCs.
* Reset subsystem, merged through arm-soc by tradition:
- Make bool drivers explicitly non-modular
- New support for i.MX7 and Arria10 reset controllers
* PATA driver for Palmchip BK371 (acked by Tejun)
* Power domain drivers for i.MX (GPC, GPCv2)
- Moved out of mach-imx for GPC
- Bunch of tweaks, fixes, etc
* PMC support for Tegra186
* SoC detection support for Renesas RZ/G1H and RZ/G1N
* Move Tegra flow controller driver from mach directory to drivers/soc
- (Power management / CPU power driver)
* Misc smaller tweaks for other platforms
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=B43K
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs:
Reset subsystem, merged through arm-soc by tradition:
- Make bool drivers explicitly non-modular
- New support for i.MX7 and Arria10 reset controllers
PATA driver for Palmchip BK371 (acked by Tejun)
Power domain drivers for i.MX (GPC, GPCv2)
- Moved out of mach-imx for GPC
- Bunch of tweaks, fixes, etc
PMC support for Tegra186
SoC detection support for Renesas RZ/G1H and RZ/G1N
Move Tegra flow controller driver from mach directory to drivers/soc
- (Power management / CPU power driver)
Misc smaller tweaks for other platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits)
soc: pm-domain: Fix the mangled urls
soc: renesas: rcar-sysc: Add support for R-Car H3 ES2.0
soc: renesas: rcar-sysc: Add support for fixing up power area tables
soc: renesas: Register SoC device early
soc: imx: gpc: add workaround for i.MX6QP to the GPC PD driver
dt-bindings: imx-gpc: add i.MX6 QuadPlus compatible
soc: imx: gpc: add defines for domain index
soc: imx: Add GPCv2 power gating driver
dt-bindings: Add GPCv2 power gating driver
ARM/clk: move the ICST library to drivers/clk
ARM: plat-versatile: remove stale clock header
ARM: keystone: Drop PM domain support for k2g
soc: ti: Add ti_sci_pm_domains driver
dt-bindings: Add TI SCI PM Domains
PM / Domains: Do not check if simple providers have phandle cells
PM / Domains: Add generic data pointer to genpd data struct
soc/tegra: Add initial flowctrl support for Tegra132/210
soc/tegra: flowctrl: Add basic platform driver
soc/tegra: Move Tegra flowctrl driver
ARM: tegra: Remove unnecessary inclusion of flowctrl header
...
Add code allowing for control of various power domains managed by GPCv2
IP block found in i.MX7 series of SoCs. Power domains covered by this
patch are:
- PCIE PHY
- MIPI PHY
- USB HSIC PHY
- USB OTG1/2 PHY
Support for any other power domain controlled by GPC is not present, and
can be added at some later point.
Testing of this code was done against a PCIe driver.
Cc: yurovsky@gmail.com
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Dong Aisheng <dongas86@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The ARMv8 zx2967 family (296718, 296716 etc) uses different value
for controlling the power domain on/off registers, Choose the
value depending on the compatible.
Multiple domains are prepared for the family, this patch prepares
the common functions.
Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
The global utilities block controls power management, I/O device
enabling, power-onreset(POR) configuration monitoring, alternate
function selection for multiplexed signals,and clock control.
This patch adds a driver to manage and access global utilities block.
Initially only reading SVR and registering soc device are supported.
Other guts accesses, such as reading RCW, should eventually be moved
into this driver as well.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Enable the drivers on the powerpc arch.
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Claudiu Manoil <claudiu.manoil@nxp.com>
Signed-off-by: Scott Wood <oss@buserror.net>
of machine-local files and boardfile-type data for regulators
and ASoC.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=VLJl
-----END PGP SIGNATURE-----
Merge tag 'ux500-cleanup-bundle' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into next/drivers
Merge "Ux500 cleanups from Arnd" from Linus Walleij:
This is a set of cleanups for the Ux500 that reduce the number
of machine-local files and boardfile-type data for regulators
and ASoC.
* tag 'ux500-cleanup-bundle' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: consolidate base platform files
ARM: ux500: move soc_id driver to drivers/soc
ARM: ux500: call ux500_setup_id later
ARM: ux500: consolidate soc_device code in id.c
ARM: ux500: remove cpu_is_u* helpers
ARM: ux500: use CLK_OF_DECLARE()
ARM: ux500: move l2x0 init to .init_irq
mfd: db8500 stop passing around platform data
ASoC: ab8500-codec: remove platform data based probe
ARM: ux500: move ab8500_regulator_plat_data into driver
ARM: ux500: remove unused regulator data
As the ux500 id code is basically a standalone driver, we can move it
out of the arch code into drivers/soc/ux500.
This is a user-visible change, as it moves all the devices in sysfs
from /sys/devices/soc0/ to /sys/devices/ and leaves the soc0 node as a
separate device.
Originally the idea was to put all on-chip devices under the soc node,
and ux500 was the first platform to have this device, but later platforms
almost all didn't follow that pattern, so this makes the platform do
the same thing as everyone else.
Since the platform is really obsolete now, I am optimistic that nothing
will break after moving the devices around.
As the SoC driver no longer has access to the private header files,
I'm changing the code to instead look up the address of the backupram
from devicetree, which is a good idea anyway.
Finally, having a separate Kconfig symbol means the driver is now
optional and could even be a loadable module rather than always being
built-in if we allowed that for soc_device.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
[Fixup mising Makefile, fixup BB_UID_BASE to fc0]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Unify the different Broadcom SoCs directory and have everybody live
under drivers/soc/bcm/*.
Acked-by: Scott Branden <scott.branden@broadcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This patch moves Exynos PMU driver implementation from "arm/mach-exynos"
to "drivers/soc/samsung". This driver is mainly used for setting misc
bits of register from PMU IP of Exynos SoC which will be required to
configure before Suspend/Resume. Currently all these settings are done
in "arch/arm/mach-exynos/pmu.c" but moving ahead for ARM64 based SoC
support, there is a need of this PMU driver in driver/* folder.
This driver uses existing DT binding information and there should
be no functionality change in the supported platforms.
Signed-off-by: Amit Daniel Kachhap <amitdanielk@gmail.com>
[tested on Peach-Pi (Exynos5880)]
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[for testing on Trats2 (Exynos4412) and Odroid XU3 (Exynos5422)]
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[k.kozlowski: Rebased, add necessary infrastructure for building and
selecting drivers/soc because original patchset was on top of movement
SROMc to drivers/soc]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Here's a single-SoC topic branch that we've staged separately. Mainly
because it was hard to sort the branch contents in a way that fit our
existing branches due to some refactorings.
The code has been in -next for quite a while, but we staged it in arm-soc
a bit late, which is why we've kept it separate from the other updates
and are sending it separately here.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=LG3u
-----END PGP SIGNATURE-----
Merge tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC support for Tegra platforms from Olof Johansson:
"Here's a single-SoC topic branch that we've staged separately. Mainly
because it was hard to sort the branch contents in a way that fit our
existing branches due to some refactorings.
The code has been in -next for quite a while, but we staged it in
arm-soc a bit late, which is why we've kept it separate from the other
updates and are sending it separately here"
* tag 'armsoc-tegra' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
arm64: tegra: Add NVIDIA Jetson TX1 Developer Kit support
arm64: tegra: Add NVIDIA P2597 I/O board support
arm64: tegra: Add NVIDIA Jetson TX1 support
arm64: tegra: Add NVIDIA P2571 board support
arm64: tegra: Add NVIDIA P2371 board support
arm64: tegra: Add NVIDIA P2595 I/O board support
arm64: tegra: Add NVIDIA P2530 main board support
arm64: tegra: Add Tegra210 support
arm64: tegra: Add NVIDIA Tegra132 Norrin support
arm64: tegra: Add Tegra132 support
ARM: tegra: select USB_ULPI from EHCI rather than platform
ARM: tegra: Ensure entire dcache is flushed on entering LP0/1
amba: Hide TEGRA_AHB symbol
soc/tegra: Add Tegra210 support
soc/tegra: Provide per-SoC Kconfig symbols
Driver updates for ARM SoCs. Some for SoC-family code under drivers/soc,
but also some other driver updates that don't belong anywhere else. We also
bring in the drivers/reset code through arm-soc.
Some of the larger updates:
- Qualcomm support for SMEM, SMSM, SMP2P. All used to communicate with other
parts of the chip/board on these platforms, all proprietary protocols that
don't fit into other subsystems and live in drivers/soc for now.
- System bus driver for UniPhier
- Driver for the TI Wakeup M3 IPC device
- Power management for Raspberry PI
+ Again a bunch of other smaller updates and patches.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=khZ5
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"Driver updates for ARM SoCs. Some for SoC-family code under
drivers/soc, but also some other driver updates that don't belong
anywhere else. We also bring in the drivers/reset code through
arm-soc.
Some of the larger updates:
- Qualcomm support for SMEM, SMSM, SMP2P. All used to communicate
with other parts of the chip/board on these platforms, all
proprietary protocols that don't fit into other subsystems and live
in drivers/soc for now.
- System bus driver for UniPhier
- Driver for the TI Wakeup M3 IPC device
- Power management for Raspberry PI
+ Again a bunch of other smaller updates and patches"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
bus: uniphier: allow only built-in driver
ARM: bcm2835: clarify RASPBERRYPI_FIRMWARE dependency
MAINTAINERS: Drop Kumar Gala from QCOM
bus: uniphier-system-bus: add UniPhier System Bus driver
ARM: bcm2835: add rpi power domain driver
dt-bindings: add rpi power domain driver bindings
ARM: bcm2835: Define two new packets from the latest firmware.
drivers/soc: make mediatek/mtk-scpsys.c explicitly non-modular
soc: mediatek: SCPSYS: Add regulator support
MAINTAINERS: Change QCOM entries
soc: qcom: smd-rpm: Add existing platform support
memory/tegra: Add number of TLB lines for Tegra124
reset: hi6220: fix modular build
soc: qcom: Introduce WCNSS_CTRL SMD client
ARM: qcom: select ARM_CPU_SUSPEND for power management
MAINTAINERS: Add rules for Qualcomm dts files
soc: qcom: enable smsm/smp2p modular build
serial: msm_serial: Make config tristate
soc: qcom: smp2p: Qualcomm Shared Memory Point to Point
soc: qcom: smsm: Add driver for Qualcomm SMSM
...
ls1 has qe and ls1 has arm cpu.
move qe from arch/powerpc to drivers/soc/fsl
to adapt to powerpc and arm
Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds support for several power domains on Raspberry Pi,
including USB (so it can be enabled even if the bootloader didn't do
it), and graphics.
This patch is the combined work of Eric Anholt (who wrote USB support
inside of the Raspberry Pi firmware driver, and wrote the non-USB
domain support) and Alexander Aring (who separated the original USB
work out from the firmware driver).
Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Move per-SoC generation Kconfig symbols to drivers/soc/tegra/Kconfig to
gather them all in a single place. This directory is a natural location
for these options since it already contains the drivers that are shared
across 32-bit and 64-bit ARM architectures.
Signed-off-by: Thierry Reding <treding@nvidia.com>
As we've enabled multiplatform kernels on ARM, and greatly done away with
the contents under arch/arm/mach-*, there's still need for SoC-related
drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to communicate
with power management blocks on these SoCs for use by clock, regulator and
bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be confused with
PSCI (Power State Coordination Interface). SCPI is used to communicate with
the assistant embedded cores doing power management, and we have yet to see
how many of them will implement this for their hardware vs abstracting in
other ways (or not at all like in the past).
- To make confusion between SCPI and PSCI more likely, this release also
includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=dm+I
-----END PGP SIGNATURE-----
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Olof Johansson:
"As we've enabled multiplatform kernels on ARM, and greatly done away
with the contents under arch/arm/mach-*, there's still need for
SoC-related drivers to go somewhere.
Many of them go in through other driver trees, but we still have
drivers/soc to hold some of the "doesn't fit anywhere" lowlevel code
that might be shared between ARM and ARM64 (or just in general makes
sense to not have under the architecture directory).
This branch contains mostly such code:
- Drivers for qualcomm SoCs for SMEM, SMD and SMD-RPM, used to
communicate with power management blocks on these SoCs for use by
clock, regulator and bus frequency drivers.
- Allwinner Reduced Serial Bus driver, again used to communicate with
PMICs.
- Drivers for ARM's SCPI (System Control Processor). Not to be
confused with PSCI (Power State Coordination Interface). SCPI is
used to communicate with the assistant embedded cores doing power
management, and we have yet to see how many of them will implement
this for their hardware vs abstracting in other ways (or not at all
like in the past).
- To make confusion between SCPI and PSCI more likely, this release
also includes an update of PSCI to interface version 1.0.
- Rockchip support for power domains.
- A driver to talk to the firmware on Raspberry Pi"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (57 commits)
soc: qcom: smd-rpm: Correct size of outgoing message
bus: sunxi-rsb: Add driver for Allwinner Reduced Serial Bus
bus: sunxi-rsb: Add Allwinner Reduced Serial Bus (RSB) controller bindings
ARM: bcm2835: add mutual inclusion protection
drivers: psci: make PSCI 1.0 functions initialization version dependent
dt-bindings: Correct paths in Rockchip power domains binding document
soc: rockchip: power-domain: don't try to print the clock name in error case
soc: qcom/smem: add HWSPINLOCK dependency
clk: berlin: add cpuclk
ARM: berlin: dts: add CLKID_CPU for BG2Q
ARM: bcm2835: Add the Raspberry Pi firmware driver
soc: qcom: smem: Move RPM message ram out of smem DT node
soc: qcom: smd-rpm: Correct the active vs sleep state flagging
soc: qcom: smd: delete unneeded of_node_put
firmware: qcom-scm: build for correct architecture level
soc: qcom: smd: Correct SMEM items for upper channels
qcom-scm: add missing prototype for qcom_scm_is_available()
qcom-scm: fix endianess issue in __qcom_scm_is_call_available
soc: qcom: smd: Reject send of too big packets
soc: qcom: smd: Handle big endian CPUs
...
This driver is found on RK3288 SoCs.
In order to meet high performance and low power requirements, a power
management unit is designed or saving power when RK3288 in low power
mode.
The RK3288 PMU is dedicated for managing the power of the whole chip.
PMU can work in the Low Power Mode by setting bit[0] of PMU_PWRMODE_CON
register. After setting the register, PMU would enter the Low Power mode.
In the low power mode, pmu will auto power on/off the specified power
domain, send idle req to specified power domain, shut down/up pll and
so on. All of above are configurable by setting corresponding registers.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
[replace dsb() with dsb(sy) for arm64 buildability; sy is the default,
so no functional change; adapt to per-user clocks in genpd]
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The Allwinner SoCs have a handful of SRAM that can be either mapped to be
accessible by devices or the CPU.
That mapping is controlled by an SRAM controller, and that mapping might
not be set by the bootloader, for example if the device wasn't used at all,
or if we're using solutions like the U-Boot's Falcon Boot.
We could also imagine changing this at runtime for example to change the
mapping of these SRAMs to use them for suspend/resume or runtime memory
rate change, if that ever happens.
These use cases require some API in the kernel to control that mapping,
exported through a drivers/soc driver.
This driver also implement a debugfs file that shows the SRAM found in the
system, the current mapping and the SRAM that have been claimed by some
drivers in the kernel.
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds support for the PMIC wrapper found on MediaTek MT8135 and
MT8173 SoCs. The PMIC wrapper is found on MT6xxx SoCs aswell but these
are currently not supported.
On MediaTek MT8135, MT8173 and other SoCs the PMIC is connected via
SPI. The SPI master interface is not directly visible to the CPU, but
only through the PMIC wrapper inside the SoC. The communication between
the SoC and the PMIC can optionally be encrypted. Also a non standard
Dual IO SPI mode can be used to increase speed. The MT8135 also supports
a special feature named "IP Pairing". With IP Pairing the pins of some
SoC internal peripherals can be on the PMIC. The signals of these pins
are routed over the SPI bus using the pwrap bridge. Because of these
optional non SPI conform features the PMIC driver is not implemented as
a SPI bus master driver.
Signed-off-by: Flora Fu, MediaTek
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This adds a SoC driver to be used by the ARM RealView
reference boards. We create the "versatile" directory to hold
the different ARM reference designs as per the pattern of the
clk directory layout. The driver utilze the syscon to get to
the register needed. After this we can use sysfs to get at
some SoC properties on RealView DT variants like this:
> cd /sysbus/soc/devices/soc0
> ls
board family machine power subsystem
build fpga manufacturer soc_id uevent
> cat family
Versatile
> cat fpga
Multi-layer AXI
> cat board
HBI-0147
> cat build
03
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Conflicts:
drivers/soc/Kconfig
drivers/soc/Makefile
The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of
the main hardware sub system which forms the backbone of the Keystone
Multi-core Navigator. QMSS consist of queue managers, packed-data structure
processors(PDSP), linking RAM, descriptor pools and infrastructure
Packet DMA.
The Queue Manager is a hardware module that is responsible for accelerating
management of the packet queues. Packets are queued/de-queued by writing or
reading descriptor address to a particular memory mapped location. The PDSPs
perform QMSS related functions like accumulation, QoS, or event management.
Linking RAM registers are used to link the descriptors which are stored in
descriptor RAM. Descriptor RAM is configurable as internal or external memory.
The QMSS driver manages the PDSP setups, linking RAM regions,
queue pool management (allocation, push, pop and notify) and descriptor
pool management. The specifics on the device tree bindings for
QMSS can be found in:
Documentation/devicetree/bindings/soc/keystone-navigator-qmss.txt
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
The GSBI (General Serial Bus Interface) driver controls the overarching
configuration of the shared serial bus infrastructure on APQ8064, IPQ8064, and
earlier QCOM processors. The GSBI supports UART, I2C, SPI, and UIM
functionality in various combinations.
Signed-off-by: Andy Gross <agross@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Based on earlier thread "https://lkml.org/lkml/2013/10/7/662" and
discussion at Kernel Summit'2013, it was agreed to create
'driver/soc' for drivers which are quite SOC specific.
Further discussion on the subject is in response to
the earlier version of the patch is here:
http://lwn.net/Articles/588942/
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sandeep Nair <sandeep_n@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Yinbo Zhu