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* ARM: tegra: add APIs the clock uclass driver will needStephen Warren2016-09-27-16/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | A future patch will implement a clock uclass driver for Tegra. That driver will call into Tegra's existing clock code to simplify the transition; this avoids tieing the clock uclass patches into significant refactoring of the existing custom clock API implementation. Some of the Tegra clock APIs that manipulate peripheral clocks require both the peripheral clock ID and parent clock ID to be passed in together. However, the clock uclass API does not require any such "parent" parameter, so the clock driver must determine this information itself. This patch implements new Tegra- specific clock API clock_get_periph_parent() for this purpose. The new API is implemented in the core Tegra clock code rather than SoC- specific clock code. The implementation uses various SoC-/clock-specific data. That data is only available in SoC-specific clock code. Consequently, two new internal APIs are added that enable the core clock code to retrieve this information from the SoC-specific clock code. Due to the structure of the Tegra clock code, this leads to some unfortunate code duplication. However, this situation predates this patch. Ideally, future work will de-duplicate the Tegra clock code, and migrate it into drivers/clk/tegra. However, such refactoring is kept separate from this series. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: add peripheral clock init tableStephen Warren2016-09-27-0/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently, Tegra peripheral drivers control two aspects of their HW module clock(s): 1) The clock enable/rate for the peripheral clock itself. 2) The system-level clock tree setup, i.e. the clock parent. Aspect 1 is reasonable, but aspect 2 is a system-level decision, not something that an individual peripheral driver should in general know about or influence. Such system-level knowledge ties the driver to a specific SoC implementation, even when they use generic APIs for clock manipulation, since they must have SoC-specific knowledge such as parent clock IDs. Limited exceptions exist, such as where peripheral HW is expected to dynamically switch between clock sources at run-time, such as CPU clock scaling or display clock conflict management in a multi-head scenario. This patch enhances the Tegra core code to perform system-level clock tree setup, in a similar fashion to the Linux kernel Tegra clock driver. This will allow future patches to simplify peripheral drivers by removing the clock parent setup logic. This change is required prior to converting peripheral drivers to use the standard clock APIs, since: 1) The clock uclass doesn't currently support a set_parent() operation. Adding one is possible, but not necessary at the moment. 2) The clock APIs retrieve all clock IDs from device tree, and the DT bindings for almost all peripherals only includes information about the relevant peripheral clocks, and not any potential parent clocks. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: armv7: move CONFIG_ARMV7_PSCI to KconfigMasahiro Yamada2016-09-07-0/+1
| | | | | | | | | Add ARCH_SUPPORT_PSCI as a non-configurable option that platforms can select. Then, move CONFIG_ARMV7_PSCI, which is automatically enabled if both ARMV7_NONSEC and ARCH_SUPPORT_PSCI are enabled. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: tegra: remove wrong dependency on SPL_BUILDMasahiro Yamada2016-09-07-2/+2
| | | | | | | SPL_BUILD is not a CONFIG in Kconfig, so !SPL_BUILD is always true. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* ARM: tegra: Add support for TK1-SOM board from Colorado EngineeringPeter Chubb2016-09-01-0/+12
| | | | | | | | | | | | | | The Colorado TK1 SOM is a small form factor board similar to the Jetson TK1. The main differences lie in the pinmux, and in that the PCIe controller is set to use in 4lanes+1lane, rather than 2+2. The pinmux header here was generated from a spreadsheet provided by Colorado Engineering using the tegra-pinmux scripts. The spreadsheet was converted from v09 to v11 by me. Signed-off-by: Peter Chubb <peter.chubb@data61.csiro.au> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: parameterize common XUSB codeStephen Warren2015-11-12-65/+19
| | | | | | | | | | | | | | There are some differences between the Tegra124 and Tegra210 XUSB padctl code. So far, the common XUSB padctl code only supports Tegra124. Add some parameters etc. so that it can work for both chips. This also allows moving Tegra124's process_nodes() into the common file; something that would have requires edits during the move if done in the previous commit. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: create common XUSB padctl driver fileStephen Warren2015-11-12-341/+6
| | | | | | | | | | | | | A fair amount of the XUSB padctl driver will be common between Tegra124 and Tegra210. To avoid cut/paste between the two chips, create a new file that will contain the common code, and convert the Tegra124 code to use it. This change doesn't move every last piece of code that can/will be shared, but rather concentrates on moving code that can be moved with zero changes, so there are no other diffs mixed in. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: clean up XUSB padctl error() callsStephen Warren2015-11-12-19/+14
| | | | | | | | | | This file defines pr_fmt(), so the individual error() calls don't need to include the prefix in their format strings. Doing so results in duplicate text in any error messages. Remove the duplication. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra124: Clear IDDQ when enabling PLLCThierry Reding2015-09-16-0/+5
| | | | | | | | | | | | Enabling a PLL while IDDQ is high. The Linux kernel checks for this condition and warns about it verbosely, so while this seems to work fine, fix it up according to the programming guidelines provided in the Tegra K1 TRM (v02p), Section 5.3.8.1 ("PLLC and PLLC4 Startup Sequence"). Reported-by: Nicolas Chauvet <kwizart@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: clk_m is the architected timer source clockThierry Reding2015-09-16-2/+2
| | | | | | | | | | | While clk_m and the oscillator run at the same frequencies on Tegra114 and Tegra124, clk_m is the proper source for the architected timer. On more recent Tegra generations, Tegra210 and later, both the oscillator and clk_m can run at different frequencies. clk_m will be divided down from the oscillator. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* of: clean up OF_CONTROL ifdef conditionalsMasahiro Yamada2015-08-18-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We have flipped CONFIG_SPL_DISABLE_OF_CONTROL. We have cleansing devices, $(SPL_) and CONFIG_IS_ENABLED(), so we are ready to clear away the ugly logic in include/fdtdec.h: #ifdef CONFIG_OF_CONTROL # if defined(CONFIG_SPL_BUILD) && !defined(SPL_OF_CONTROL) # define OF_CONTROL 0 # else # define OF_CONTROL 1 # endif #else # define OF_CONTROL 0 #endif Now CONFIG_IS_ENABLED(OF_CONTROL) is the substitute. It refers to CONFIG_OF_CONTROL for U-boot proper and CONFIG_SPL_OF_CONTROL for SPL. Also, we no longer have to cancel CONFIG_OF_CONTROL in include/config_uncmd_spl.h and scripts/Makefile.spl. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
* tegra: Correct logic for reading pll_misc in clock_start_pll()Simon Glass2015-08-13-1/+3
| | | | | | | | | | | | The logic for simple PLLs on T124 was broken by this commit: 722e000c Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc. Correct it by reading from the same pll_misc register that it writes to and adding an entry for the DP PLL in the pllinfo table. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc.Tom Warren2015-08-05-20/+55
| | | | | | | | | | | | | Added PLL variables (dividers mask/shift, lock enable/detect, etc.) to new pllinfo struct for each Soc/PLL. PLLA/C/D/E/M/P/U/X. Used pllinfo struct in all clock functions, validated on T210. Should be equivalent to prior code on T124/114/30/20. Thanks to Marcel Ziswiler for corrections to the T20/T30 values. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: Replace 'Norrin' with 'Nyan-big' and fix typoSimon Glass2015-06-09-1/+1
| | | | | | | | With the rename the MAINTAINER file was not updated. Fix it and the 'Chrombook' typo in Kconfig. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: Add missing tegra124 peripheralsSimon Glass2015-06-09-1/+1
| | | | | | | There are some missing entries in the tables. Add them. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* jetson-tk1: Add PSCI configuration options and reserve secure codeIan Campbell2015-05-13-0/+2
| | | | | | | | | | | | | | The secure world code is relocated to the MB just below the top of 4G, we reserve it in the FDT (by setting CONFIG_ARMV7_SECURE_RESERVE_SIZE) but it is not protected in h/w. Signed-off-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Tested-by: Thierry Reding <treding@nvidia.com> Tested-by: Ian Campbell <ijc@hellion.org.uk> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra124: Add PSCI support for Tegra124Jan Kiszka2015-05-13-0/+63
| | | | | | | | | | | | | | | This is based on Thierry Reding's work and uses Ian Campell's preparatory patches. It comes with full support for CPU_ON/OFF PSCI services. The algorithm used in this version for turning CPUs on and off was proposed by Peter De Schrijver and Thierry Reding in http://thread.gmane.org/gmane.comp.boot-loaders.u-boot/210881. It consists of first enabling CPU1..3 via the PMC, just to powergate them again with the help of the Flow Controller. Once the Flow Controller is in place, we can leave the PMC alone while processing CPU_ON and CPU_OFF PSCI requests. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra124: clock: Add display clocks and functionsSimon Glass2015-05-13-5/+136
| | | | | | | | Add functions to provide access to the display clocks on Tegra124 including setting the clock rate for an EDP display. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* arch: Make board selection choices optionalJoe Hershberger2015-05-12-0/+1
| | | | | | | | | | | | By making the board selections optional, every defconfig will include the board selection when running savedefconfig so if a new board is added to the top of the list of choices the former top's defconfig will still be correct. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Cc: Tom Rini <trini@konsulko.com>
* ARM: tegra: enable MIPI PAD CTRL support for Tegra124Stephen Warren2015-03-30-0/+17
| | | | | | | This allows selection between CSI and DSI_B on the MIPI pads. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: collect SoC sources into mach-tegraMasahiro Yamada2015-02-21-0/+2336
This commit moves files as follows: arch/arm/cpu/arm720t/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/arm720t/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/arm720t/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/arm720t/tegra124* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/arm720t/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/armv7/tegra20/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/armv7/tegra30/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/armv7/tegra114/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/armv7/tegra124/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/armv7/tegra-common/* -> arch/arm/mach-tegra/* arch/arm/cpu/tegra20-common/* -> arch/arm/mach-tegra/tegra20/* arch/arm/cpu/tegra30-common/* -> arch/arm/mach-tegra/tegra30/* arch/arm/cpu/tegra114-common/* -> arch/arm/mach-tegra/tegra114/* arch/arm/cpu/tegra124-common/* -> arch/arm/mach-tegra/tegra124/* arch/arm/cpu/tegra-common/* -> arch/arm/mach-tegra/* Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Simon Glass <sjg@chromium.org> [ on nyan-big ] Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com>
generated by cgit v1.1 at 2024-11-09 15:40:46 +0000