Core changes:
- A semantic change to handle pinmux and pinconf in explicit order
while up until now we depended on the semantic order in the
device tree. The device tree is a functional programming
language and does not imply any order, so the right thing is
for the pin control core to provide these semantics.
- Add a new pinmux-select debugfs file which makes it possible to
go in and select functions for a pin manually (iteratively, at
the prompt) for debugging purposes.
- Fixes to gpio regmap handling for a new pin control driver
making use of regmap-gpio.
- Use octal permissions on debugfs files.
New drivers:
- A massive rewrite of the former custom pin control driver for
MIPS Broadcom devices to instead use the pin control subsystem.
New pin control drivers for BCM6345, BCM6328, BCM6358, BCM6362,
BCM6368, BCM63268 and BCM6318 SoC variants are implemented.
- Support for PM8350, PM8350B, PM8350C, PMK8350, PMR735A and
PMR735B in the Qualcomm PMIC GPIO driver. Also the two GPIOs
on PM8008 are supported.
- Support for the Rockchip RK3568/RK3566 pin controller.
- Support for Ingenic JZ4730, JZ4750, JZ4755, JZ4775 and
X2000.
- Support for Mediatek MTK8195.
- Add a new Xilinx ZynqMP pin control driver.
Driver improvements and non-urgent fixes:
- Modularization and improvements of the Rockchip drivers.
- Some new pins added to the description of new Renesas SoCs.
- Clarifications of the GPIO base calculation in the Intel driver.
- Fix the function names for the MPP54 and MPP55 pins in the Armada
CP110 pin controller.
- GPIO wakeup interrupt map for Qualcomm SC7280 and SM8350.
- Support for ACPI probing of the Qualcomm SC8180x.
- Fix interrupt clear status on rockchip
- Fix some missing pins on the Ingenic JZ4770, some semantic
fixes for the behaviour of the Ingenic pin controller.
Add DMIC pins for JZ4780, X1000, X1500 and X1830.
- A slew of janitorial like of_node_put() calls.
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Merge tag 'pinctrl-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control updates from Linus Walleij:
"There is a lot going on!
Core changes:
- A semantic change to handle pinmux and pinconf in explicit order
while up until now we depended on the semantic order in the device
tree. The device tree is a functional programming language and does
not imply any order, so the right thing is for the pin control core
to provide these semantics.
- Add a new pinmux-select debugfs file which makes it possible to go
in and select functions for a pin manually (iteratively, at the
prompt) for debugging purposes.
- Fixes to gpio regmap handling for a new pin control driver making
use of regmap-gpio.
- Use octal permissions on debugfs files.
New drivers:
- A massive rewrite of the former custom pin control driver for MIPS
Broadcom devices to instead use the pin control subsystem. New pin
control drivers for BCM6345, BCM6328, BCM6358, BCM6362, BCM6368,
BCM63268 and BCM6318 SoC variants are implemented.
- Support for PM8350, PM8350B, PM8350C, PMK8350, PMR735A and PMR735B
in the Qualcomm PMIC GPIO driver. Also the two GPIOs on PM8008 are
supported.
- Support for the Rockchip RK3568/RK3566 pin controller.
- Support for Ingenic JZ4730, JZ4750, JZ4755, JZ4775 and X2000.
- Support for Mediatek MTK8195.
- Add a new Xilinx ZynqMP pin control driver.
Driver improvements and non-urgent fixes:
- Modularization and improvements of the Rockchip drivers.
- Some new pins added to the description of new Renesas SoCs.
- Clarifications of the GPIO base calculation in the Intel driver.
- Fix the function names for the MPP54 and MPP55 pins in the Armada
CP110 pin controller.
- GPIO wakeup interrupt map for Qualcomm SC7280 and SM8350.
- Support for ACPI probing of the Qualcomm SC8180x.
- Fix interrupt clear status on rockchip
- Fix some missing pins on the Ingenic JZ4770, some semantic fixes
for the behaviour of the Ingenic pin controller. Add DMIC pins for
JZ4780, X1000, X1500 and X1830.
- A slew of janitorial like of_node_put() calls"
* tag 'pinctrl-v5.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (99 commits)
pinctrl: Add Xilinx ZynqMP pinctrl driver support
firmware: xilinx: Add pinctrl support
pinctrl: rockchip: do coding style for mux route struct
pinctrl: Add PIN_CONFIG_MODE_PWM to enum pin_config_param
pinctrl: Introduce MODE group in enum pin_config_param
pinctrl: Keep enum pin_config_param ordered by name
dt-bindings: pinctrl: Add binding for ZynqMP pinctrl driver
pinctrl: core: Fix kernel doc string for pin_get_name()
pinctrl: mediatek: use spin lock in mtk_rmw
pinctrl: add drive for I2C related pins on MT8195
pinctrl: add pinctrl driver on mt8195
dt-bindings: pinctrl: mt8195: add pinctrl file and binding document
pinctrl: Ingenic: Add pinctrl driver for X2000.
pinctrl: Ingenic: Add pinctrl driver for JZ4775.
pinctrl: Ingenic: Add pinctrl driver for JZ4755.
pinctrl: Ingenic: Add pinctrl driver for JZ4750.
pinctrl: Ingenic: Add pinctrl driver for JZ4730.
dt-bindings: pinctrl: Add bindings for new Ingenic SoCs.
pinctrl: Ingenic: Reformat the code.
pinctrl: Ingenic: Add DMIC pins support for Ingenic SoCs.
...
Better to have a MODE group of settings to keep them together
when ordered alphabetically. Hence, rename PIN_CONFIG_LOW_POWER_MODE
to PIN_CONFIG_MODE_LOW_POWER.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210412140741.39946-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Print out domain name when reset fails to acquire for debugging purposes
and to make formatting of GENPD errors consistent in the driver.
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Switch all clocks of a power domain to a safe rate which is suitable
for all possible voltages in order to ensure that hardware constraints
aren't violated when power domain state toggles.
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The SW-initiated power gate toggling is dropped by PMC if there is
contention with a HW-initiated toggling, i.e. when one of CPU cores is
gated by cpuidle driver. Software should retry the toggling after 10
microseconds on Tegra20/30 SoCs, hence add the retrying. On Tegra114+ the
toggling method was changed in hardware, the TOGGLE_START bit indicates
whether PMC is busy or could accept the command to toggle, hence handle
that bit properly.
The problem pops up after enabling dynamic power gating of 3D hardware,
where 3D power domain fails to turn on/off "randomly".
The programming sequence and quirks are documented in TRMs, but PMC
driver obliviously re-used the Tegra20 logic for Tegra30+, which strikes
back now. The 10 microseconds and other timeouts aren't documented in TRM,
they are taken from downstream kernel.
Link: https://nv-tegra.nvidia.com/gitweb/?p=linux-2.6.git;a=commit;h=311dd1c318b70e93bcefec15456a10ff2b9eb0ff
Link: https://nv-tegra.nvidia.com/gitweb/?p=linux-3.10.git;a=commit;h=7f36693c47cb23730a6b2822e0975be65fb0c51d
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The tegra_powergate_power_up() has a typo in the error code path where it
will try to disable clocks twice, fix it. In practice that error never
happens, so this is a minor correction.
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20 and TK1 T124
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Fix voltage coupler lockup which happens when voltage-spread is out
of range due to a bug in the code. The max-spread requirement shall be
accounted when CPU regulator doesn't have consumers. This problem is
observed on Tegra30 Ouya game console once system-wide DVFS is enabled
in a device-tree.
Fixes: 783807436f ("soc/tegra: regulators: Add regulators coupler for Tegra30")
Cc: stable@vger.kernel.org
Reported-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit implements a register map which grants USB (UTMI and HSIC)
sleepwalk registers access to USB PHY drivers. The USB sleepwalk logic
is in PMC hardware block but USB PHY drivers have the best knowledge
of proper programming sequence.
Signed-off-by: JC Kuo <jckuo@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This contains a couple of warning fixes and a fix for a mostly harmless
bug in the process ID retrieval code.
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Merge tag 'tegra-for-5.11-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers
soc/tegra: Changes for v5.11-rc1
This contains a couple of warning fixes and a fix for a mostly harmless
bug in the process ID retrieval code.
* tag 'tegra-for-5.11-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: fuse: Fix index bug in get_process_id
soc: tegra: fuse: speedo-tegra210: Remove a group of set but unused variables
soc: tegra: fuse: speedo-tegra124: Remove some set but unused variables
Link: https://lore.kernel.org/r/20201127144329.124891-2-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes the following W=1 kernel build warning(s):
drivers/soc/tegra/fuse/speedo-tegra210.c: In function ‘tegra210_init_speedo_data’:
drivers/soc/tegra/fuse/speedo-tegra210.c:105:56: warning: variable ‘soc_iddq’ set but not used [-Wunused-but-set-variable]
drivers/soc/tegra/fuse/speedo-tegra210.c:105:46: warning: variable ‘gpu_iddq’ set but not used [-Wunused-but-set-variable]
drivers/soc/tegra/fuse/speedo-tegra210.c:105:36: warning: variable ‘cpu_iddq’ set but not used [-Wunused-but-set-variable]
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[treding@nvidia.com: remove unnecessary reads altogether]
Signed-off-by: Thierry Reding <treding@nvidia.com>
Fixes the following W=1 kernel build warning(s):
drivers/soc/tegra/fuse/speedo-tegra124.c: In function ‘tegra124_init_speedo_data’:
drivers/soc/tegra/fuse/speedo-tegra124.c:105:38: warning: variable ‘soc_iddq_value’ set but not used [-Wunused-but-set-variable]
drivers/soc/tegra/fuse/speedo-tegra124.c:105:22: warning: variable ‘gpu_iddq_value’ set but not used [-Wunused-but-set-variable]
drivers/soc/tegra/fuse/speedo-tegra124.c:105:6: warning: variable ‘cpu_iddq_value’ set but not used [-Wunused-but-set-variable]
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[treding@nvidia.com: remove unnecessary reads altogether]
Signed-off-by: Thierry Reding <treding@nvidia.com>
The tegra_read_ram_code() is used by EMC drivers and we're going to make
these driver modular, hence this function needs to be exported.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20201104164923.21238-3-digetx@gmail.com
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Various driver updates for platforms. A bulk of this is smaller fixes or
cleanups, but some of the new material this time around is:
- Support for Nvidia Tegra234 SoC
- Ring accelerator support for TI AM65x
- PRUSS driver for TI platforms
- Renesas support for R-Car V3U SoC
- Reset support for Cortex-M4 processor on i.MX8MQ
There are also new socinfo entries for a handful of different SoCs
and platforms.
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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. A bulk of this is smaller fixes
or cleanups, but some of the new material this time around is:
- Support for Nvidia Tegra234 SoC
- Ring accelerator support for TI AM65x
- PRUSS driver for TI platforms
- Renesas support for R-Car V3U SoC
- Reset support for Cortex-M4 processor on i.MX8MQ
There are also new socinfo entries for a handful of different SoCs and
platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (131 commits)
drm/mediatek: reduce clear event
soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api
soc: mediatek: cmdq: add jump function
soc: mediatek: cmdq: add write_s_mask value function
soc: mediatek: cmdq: add write_s value function
soc: mediatek: cmdq: add read_s function
soc: mediatek: cmdq: add write_s_mask function
soc: mediatek: cmdq: add write_s function
soc: mediatek: cmdq: add address shift in jump
soc: mediatek: mtk-infracfg: Fix kerneldoc
soc: amlogic: pm-domains: use always-on flag
reset: sti: reset-syscfg: fix struct description warnings
reset: imx7: add the cm4 reset for i.MX8MQ
dt-bindings: reset: imx8mq: add m4 reset
reset: Fix and extend kerneldoc
reset: reset-zynqmp: Added support for Versal platform
dt-bindings: reset: Updated binding for Versal reset driver
reset: imx7: Support module build
soc: fsl: qe: Remove unnessesary check in ucc_set_tdm_rxtx_clk
soc: fsl: qman: convert to use be32_add_cpu()
...
The Tegra PMC driver does ungodly things with the interrupt hierarchy,
repeatedly corrupting it by pulling hwirq numbers out of thin air,
overriding existing IRQ mappings and changing the handling flow
of unsuspecting users.
All of this is done in the name of preserving the interrupt hierarchy
even when these levels do not exist in the HW. Together with the use
of proper IRQs for IPIs, this leads to an unbootable system as the
rescheduling IPI gets repeatedly repurposed for random drivers...
Instead, let's simply mark the level from which the hierarchy does
not make sense for the HW, and let the core code trim the usused
levels from the hierarchy.
Signed-off-by: Marc Zyngier <maz@kernel.org>
This set of changes fixes some minor issues in existing device trees and
adds ID EEPROMs on the Jetson Xavier NX. All ID EEPROMs are now labelled
to allow them to be detected by software.
It also adds support for the Tegra234 VDK board, which is a pre-silicon
platform for the upcoming Orin SoC.
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Merge tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/dt
arm64: tegra: Changes for v5.10-rc1
This set of changes fixes some minor issues in existing device trees and
adds ID EEPROMs on the Jetson Xavier NX. All ID EEPROMs are now labelled
to allow them to be detected by software.
It also adds support for the Tegra234 VDK board, which is a pre-silicon
platform for the upcoming Orin SoC.
* tag 'tegra-for-5.10-arm64-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
arm64: tegra: Initial Tegra234 VDK support
arm64: tegra: Populate EEPROMs for Jetson Xavier NX
arm64: tegra: Add label properties for EEPROMs
arm64: tegra: Add DT binding for AHUB components
arm64: tegra: Enable ACONNECT, ADMA and AGIC on Jetson Nano
arm64: tegra: Properly size register regions for GPU on Tegra194
arm64: tegra: Use valid PWM period for VDD_GPU on Tegra210
arm64: tegra: Describe display controller outputs for Tegra210
arm64: tegra: Disable SD card write-protection on Jetson Nano
arm64: tegra: Add VBUS supply for micro USB port on Jetson Nano
arm64: tegra: Wire up pinctrl states for all DPAUX controllers
arm64: tegra: Add ID EEPROMs on Jetson AGX Xavier
Link: https://lore.kernel.org/r/20200918150303.3938852-5-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
The NVIDIA Tegra234 VDK is a simulation platform for the Orin SoC. It
supports a subset of the peripherals that will be available in the final
chip and serves as a bootstrapping platform.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The PMC block is largely similar to that found on earlier chips, but
not completely compatible. Allow binding to the instantiation found on
Tegra234.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Move the definitions of reset sources and levels into a more natural
location.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The MISC block is largely similar to that found on earlier chips, but
not completely compatible. Allow binding to the instantiation found on
Tegra234.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add support for FUSE block found on the Tegra234 SoC, which is largely
similar to the IP found on previous generations.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This function can be used by drivers to determine whether code is
running on silicon or on a simulation platform.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This function extracts the PRE_SI_PLATFORM field from the HIDREV
register and can be used to determine which platform the kernel runs on
(silicon, simulation, ...). Note that while only Tegra194 and later
define this field, it should be safe to call this on prior generations
as well since this field should read as 0, indicating silicon.
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
I have hit the following build error:
armv7a-hardfloat-linux-gnueabi-ld: drivers/soc/tegra/pmc.o: in function `pinconf_generic_dt_node_to_map_pin':
pmc.c:(.text+0x500): undefined reference to `pinconf_generic_dt_node_to_map'
armv7a-hardfloat-linux-gnueabi-ld: drivers/soc/tegra/pmc.o:(.rodata+0x1f88): undefined reference to `pinconf_generic_dt_free_map'
So SOC_TEGRA_PMC should select GENERIC_PINCONF.
Fixes: 4a37f11c8f ("soc/tegra: pmc: Implement pad configuration via pinctrl")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Currently the SoC revision attribute for Tegra devices displays the
value of the enum associated with a particular revision. This is not
very useful because to obtain the actual revision you need to
use the tegra_revision enumeration to translate the value.
It is more meaningful to display a name for the revision, such as
'A01', than the enumarated value and therefore, update the revision
attribute to display a name. This change does alter the ABI, which
is unfortunate, but this is more meaningful and maintable.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Clean-up the tegra_init_revision() function by removing the 'rev'
variable which is not needed and use the newly added helper function
tegra_get_minor_rev() to get the minor revision.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Add a custom SoC attribute for Tegra to expose the HIDREV register
fields to userspace via the sysfs. This register provides additional
details about the type of device (eg, silicon, FPGA, etc) as well as
revision. Exposing this information is useful for identifying the
exact device revision and device type.
For Tegra devices up until Tegra186, the majorrev and minorrev fields of
the HIDREV register are used to determine the device revision and device
type. For Tegra194, the majorrev and minorrev fields only determine the
revision. Starting with Tegra194, there is an additional field,
pre_si_platform (which occupies bits 20-23), that now determines device
type. Therefore, for all Tegra devices, add a custom SoC attribute for
the majorrev and minorrev fields and for Tegra194 add an additional
attribute for the pre_si_platform field.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).
Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
These changes implement various clocks that are controlled by the PMC
and add support for configuring the voltage level of some pins (needed
for example to support high-speed modes on the SD/MMC interfaces).
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Merge tag 'tegra-for-5.7-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/soc
soc/tegra: Changes for v5.7-rc1
These changes implement various clocks that are controlled by the PMC
and add support for configuring the voltage level of some pins (needed
for example to support high-speed modes on the SD/MMC interfaces).
* tag 'tegra-for-5.7-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Cleanup whitespace usage
soc/tegra: pmc: Add pins for Tegra194
soc/tegra: Add support for 32 kHz blink clock
soc/tegra: Add Tegra PMC clocks registration into PMC driver
dt-bindings: usb: Add NVIDIA Tegra XUSB device mode controller binding
dt-bindings: phy: tegra-xusb: Add usb-role-switch
dt-bindings: phy: tegra: Add Tegra194 support
dt-bindings: soc: tegra-pmc: Add ID for Tegra PMC 32 kHz blink clock
dt-bindings: soc: tegra-pmc: Add Tegra PMC clock bindings
dt-bindings: tegra: Convert Tegra PMC bindings to YAML
dt-bindings: clock: tegra: Add IDs for OSC clocks
Link: https://lore.kernel.org/r/20200313165848.2915133-3-thierry.reding@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Avoid using a mixture of tabs and spaces within tables to make them
easier to read and more consistently formatted.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Extend the Tegra194 IO pad table with additional information such as pin
names and 1.8/3.3 V settings to allow a table of voltage control pins to
generated from it. This is similar to what's done for older chips and is
needed to support high-speed modes for SDHCI where switching the pins to
1.8V or 3.3V is necessary.
Signed-off-by: Venkat Reddy Talla <vreddytalla@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra PMC has blink control to output 32 kHz clock out to Tegra blink
pin. Blink pad DPD state and enable controls are part of Tegra PMC
register space.
Currently Tegra clock driver registers blink control by passing PMC
address and register offset to clk_register_gate which performs direct
PMC access during clk_ops and with this when PMC is in secure mode, any
access from non-secure world does not go through.
This patch adds blink control registration to the Tegra PMC driver using
PMC specific clock gate operations that use tegra_pmc_readl() and
tegra_pmc_writel() to support both secure mode and non-secure
mode PMC register access.
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Tegra PMC has clk_out_1, clk_out_2, and clk_out_3 clocks and currently
these PMC clocks are registered by Tegra clock driver with each clock as
separate mux and gate clocks using clk_register_mux and clk_register_gate
by passing PMC base address and register offsets and PMC programming for
these clocks happens through direct PMC access by the clock driver.
With this, when PMC is in secure mode any direct PMC access from the
non-secure world does not go through and these clocks will not be
functional.
This patch adds these PMC clocks registration to pmc driver with PMC as
a clock provider and registers each clock as single clock.
clk_ops callback implementations for these clocks uses tegra_pmc_readl and
tegra_pmc_writel which supports PMC programming in both secure mode and
non-secure mode.
Tested-by: Dmitry Osipenko <digetx@gmail.com>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sowjanya Komatineni <skomatineni@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
If only Tegra194 support is enabled, the tegra30_fuse_read() and
tegra30_fuse_init() function are not declared and cause a build failure.
Add Tegra194 to the preprocessor guard to make sure these functions are
available for Tegra194-only builds as well.
Link: https://lore.kernel.org/r/20200203143114.3967295-1-thierry.reding@gmail.com
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Various driver updates for platforms:
- Nvidia: Fuse support for Tegra194, continued memory controller pieces
for Tegra30
- NXP/FSL: Refactorings of QuickEngine drivers to support ARM/ARM64/PPC
- NXP/FSL: i.MX8MP SoC driver pieces
- TI Keystone: ring accelerator driver
- Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
- Xilinx ZynqMP: feature checking interface for firmware. Mailbox
communication for power management
- Overall support patch set for cpuidle on more complex hierarchies
(PSCI-based)
+ Misc cleanups, refactorings of Marvell, TI, other platforms.
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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:
- Nvidia: Fuse support for Tegra194, continued memory controller
pieces for Tegra30
- NXP/FSL: Refactorings of QuickEngine drivers to support
ARM/ARM64/PPC
- NXP/FSL: i.MX8MP SoC driver pieces
- TI Keystone: ring accelerator driver
- Qualcomm: SCM driver cleanup/refactoring + support for new SoCs.
- Xilinx ZynqMP: feature checking interface for firmware. Mailbox
communication for power management
- Overall support patch set for cpuidle on more complex hierarchies
(PSCI-based)
and misc cleanups, refactorings of Marvell, TI, other platforms"
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (166 commits)
drivers: soc: xilinx: Use mailbox IPI callback
dt-bindings: power: reset: xilinx: Add bindings for ipi mailbox
drivers: soc: ti: knav_qmss_queue: Pass lockdep expression to RCU lists
MAINTAINERS: Add brcmstb PCIe controller entry
soc/tegra: fuse: Unmap registers once they are not needed anymore
soc/tegra: fuse: Correct straps' address for older Tegra124 device trees
soc/tegra: fuse: Warn if straps are not ready
soc/tegra: fuse: Cache values of straps and Chip ID registers
memory: tegra30-emc: Correct error message for timed out auto calibration
memory: tegra30-emc: Firm up hardware programming sequence
memory: tegra30-emc: Firm up suspend/resume sequence
soc/tegra: regulators: Do nothing if voltage is unchanged
memory: tegra: Correct reset value of xusb_hostr
soc/tegra: fuse: Add APB DMA dependency for Tegra20
bus: tegra-aconnect: Remove PM_CLK dependency
dt-bindings: mediatek: add MT6765 power dt-bindings
soc: mediatek: cmdq: delete not used define
memory: tegra: Add support for the Tegra194 memory controller
memory: tegra: Only include support for enabled SoCs
memory: tegra: Support DVFS on Tegra186 and later
...
Both Chip ID and strapping registers are now read out during of APB MISC
initialization, the registers' mapping isn't needed anymore once registers
are read. Hence let's unmap registers once they are not needed anymore,
for consistency.
Suggested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Trying to read out Chip ID before APBMISC registers are mapped won't
succeed, in a result Tegra124 gets a wrong address for the HW straps
register if machine uses an old outdated device tree.
Fixes: 297c4f3dcb ("soc/tegra: fuse: Restrict legacy code to 32-bit ARM")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Now both Chip ID and HW straps are becoming available at the same time,
thus we could simply check the availability of the ID in order to check
the availability of the straps. We couldn't check straps for 0x0 because
it could be a correct value.
This change didn't uncover any problems, but anyways it is nicer to have
straps verified for consistency with the Chip ID verification.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
There is no need to re-read Chip ID and HW straps out from hardware each
time, it is a bit nicer to cache the values in memory.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
There is no need to re-apply the same voltage. This change is just a minor
cleanup.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Fixes a regression for wake events on Tegra194 caused by the Tegra210
support that was added in v5.5-rc1 as well as wrong reset sources and
levels on Tegra194.
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Merge tag 'tegra-for-5.5-soc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/fixes
soc/tegra: Fixes for v5.5-rc1
Fixes a regression for wake events on Tegra194 caused by the Tegra210
support that was added in v5.5-rc1 as well as wrong reset sources and
levels on Tegra194.
* tag 'tegra-for-5.5-soc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: pmc: Add reset sources and levels on Tegra194
soc/tegra: pmc: Add missing IRQ callbacks on Tegra194
soc/tegra: pmc: Use lower-case for hexadecimal literals
Link: https://lore.kernel.org/r/20191204130753.3614278-2-thierry.reding@gmail.com
Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Torvalds