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2020-05-07soc/tegra: pmc: Select GENERIC_PINCONFCorentin Labbe1-0/+1
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: 4a37f11c8f57 ("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>
2020-01-10soc/tegra: fuse: Add APB DMA dependency for Tegra20Dmitry Osipenko1-0/+1
Tegra20 FUSE driver depends on DMA channel presence, otherwise it fails to probe. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29soc/tegra: regulators: Add regulators coupler for Tegra30Dmitry Osipenko1-0/+5
Add regulators coupler for Tegra30 SoCs that performs voltage balancing of a coupled regulators and thus provides voltage scaling functionality. There are 2 coupled regulators on all Tegra30 SoCs: CORE and CPU. The coupled regulator voltages shall be in a range of 300mV from each other and CORE voltage shall be higher than the CPU by N mV, where N depends on the CPU voltage. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-10-29soc/tegra: regulators: Add regulators coupler for Tegra20Dmitry Osipenko1-0/+5
Add regulators coupler for Tegra20 SoCs that performs voltage balancing of a coupled regulators and thus provides voltage scaling functionality. There are 3 coupled regulators on all Tegra20 SoCs: CORE, RTC and CPU. The CORE and RTC voltages shall be in range of 170mV from each other and they both shall be higher than the CPU voltage by at least 120mV. This sounds like it could be handle by a generic voltage balancer, but the CORE voltage scaling isn't implemented in any of the upstream drivers yet. It will take quite some time and effort to hook up voltage scaling for all of the drivers, hence we will use a custom coupler that will manage the CPU voltage scaling for the starter. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Acked-By: Peter De Schrijver <pdeschrijver@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-06-25Merge tag 'tegra-for-5.3-soc' of ↵Olof Johansson1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/drivers soc: tegra: Changes for v5.3-rc1 This contains a set of minor fixes and cleanups for core Tegra drivers. * tag 'tegra-for-5.3-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: soc/tegra: Select pinctrl for Tegra194 soc/tegra: fuse: Do not log error message on deferred probe soc/tegra: pmc: Add comments clarifying wake events soc/tegra: pmc: Avoid crash for non-wake IRQs soc/tegra: pmc: Fail to allocate more than one wake IRQ Signed-off-by: Olof Johansson <olof@lixom.net>
2019-06-13soc/tegra: Select pinctrl for Tegra194Krishna Yarlagadda1-0/+1
Select PINCTRL_TEGRA194 by default for Tegra194 SoC needed for dynamically controlling PCIe pins. Signed-off-by: Krishna Yarlagadda <kyarlagadda@nvidia.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
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>
2019-02-23soc/tegra: default select TEGRA_TIMER for Tegra210Joseph Lo1-0/+1
The tegra timer is necessary for Tegra210 to support CPU idle power-down state. So select it by default. Signed-off-by: Joseph Lo <josephl@nvidia.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
2018-03-08soc/tegra: Add Tegra194 SoC configuration optionMikko Perttunen1-0/+10
Add the configuration option to enable support for the Tegra194 system- on-chip. Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-12-13soc/tegra: pmc: Consolidate Tegra186 supportThierry Reding1-4/+1
Move Tegra186 support to the consolidated PMC driver to reduce some of the duplication and also gain I/O pad functionality on the new SoC as a side-effect. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-08-17soc/tegra: Register SoC deviceThierry Reding1-0/+5
Move this code from arch/arm/mach-tegra and make it common among 32-bit and 64-bit Tegra SoCs. This is slightly complicated by the fact that on 32-bit Tegra, the SoC device is used as the parent for all devices that are instantiated from device tree. Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-13soc/tegra: bpmp: Implement generic PM domainsThierry Reding1-0/+5
The BPMP firmware, found on Tegra186 and later, provides an ABI that can be used to enable and disable power to several power partitions in Tegra SoCs. The ABI allows for enumeration of the available power partitions, so the driver can be reused on future generations, provided the BPMP ABI remains stable. Based on work by Stefan Kristiansson <stefank@nvidia.com> and Mikko Perttunen <mperttunen@nvidia.com>. Signed-off-by: Thierry Reding <treding@nvidia.com> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04soc/tegra: Add initial flowctrl support for Tegra132/210Jon Hunter1-0/+2
Tegra132 and Tegra210 support the flowctrl module and so add initial support for these devices. Please note that Tegra186 does not support the flowctrl module, so update the initialisation function such that we do not fall back and attempt to map the 'hardcoded' address range for Tegra186. Furthermore 64-bit Tegra devices have always had the flowctrl node defined in their device-tree and so only use the 'hardcoded' addresses for 32-bit Tegra devices. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04soc/tegra: Move Tegra flowctrl driverJon Hunter1-0/+7
The flowctrl driver is required for both ARM and ARM64 Tegra devices and in order to enable support for it for ARM64, move the Tegra flowctrl driver into drivers/soc/tegra. By moving the flowctrl driver, tegra_flowctrl_init() is now called by via an early initcall and to prevent this function from attempting to mapping IO space for a non-Tegra device, a test for 'soc_is_tegra()' is also added. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-04-04soc/tegra: Implement Tegra186 PMC supportThierry Reding1-0/+13
The power management controller on Tegra186 has changed in backwards- incompatible ways with respect to earlier generations. This implements a new driver that supports inversion of the PMU interrupt as well as the "recovery", "bootloader" and "forced-recovery" reboot commands. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-11-15soc/tegra: Add Tegra186 supportJoseph Lo1-0/+14
The Tegra186 features a combination of Denver and Cortex-A57 CPU cores and a GPU based on the Pascal architecture. It contains an ADSP with a Cortex-A9 CPU used for audio processing, hardware video encoders and decoders with multi-format support, ISP for image capture processing and BPMP for power management. Signed-off-by: Joseph Lo <josephl@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2016-04-12ARM: tegra: Remove redundant ARM_L1_CACHE_SHIFT_6 selectMasahiro Yamada1-2/+0
These two are both ARMv7 SoCs. They need not explicitly select ARM_L1_CACHE_SHIFT_6 because it is enabled along with CPU_V7. Refer to commit a092f2b15399 ("ARM: 7291/1: cache: assume 64-byte L1 cachelines for ARMv7 CPUs"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-24ARM: tegra: select USB_ULPI from EHCI rather than platformArnd Bergmann1-4/+0
For historic reasons, the tegra platform selects USB_ULPI from architecture code, but that hasn't really made sense for a long time, as the only user of that code is the Tegra EHCI driver that has its own Kconfig symbol. This removes the 'select' statements from mach-tegra and drivers/soc/tegra and adds them with the device driver that actually needs them. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-24soc/tegra: Add Tegra210 supportThierry Reding1-0/+18
Also known as Tegra X1, the Tegra210 has four Cortex-A57 cores paired with four Cortex-A53 cores in a switched configuration. It features a GPU using the Maxwell architecture with support for DX11, SM4, OpenGL 4.5, OpenGL ES 3.1 and providing 256 CUDA cores. It supports hardware accelerated en- and decoding of various video standards including H.265, H.264 and VP8 at 4K resolutions and up to 60 fps. Besides the multimedia features it also comes with a variety of I/O controllers such as GPIO, I2C, SPI, SDHCI, PCIe, SATA and XHCI, to name only a few. Add a Kconfig option for Tegra210 to allow SoC-specific support to be enabled for this new generation. Signed-off-by: Thierry Reding <treding@nvidia.com>
2015-11-24soc/tegra: Provide per-SoC Kconfig symbolsThierry Reding1-0/+69
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>