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* ARM: tegra: move ft_system_setup()Stephen Warren2016-08-15-0/+1
| | | | | | | | | | | Currently, ft_system_setup() is implemented by board*.c, which are a bit of a dumping ground for a bunch of unrelated functionality, and separate versions exist for pre-Tegra186 and Tegra186. Move the implementation into a separate file to separate functionality, and allow sharing. 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: add IVC protocol implementationStephen Warren2016-07-21-0/+1
| | | | | | | | | | | | IVC (Inter-VM Communication) protocol is a Tegra-specific IPC (Inter Processor Communication) framework. Within the context of U-Boot, it is typically used for communication between the main CPU and various auxiliary processors. In particular, it will be used to communicate with the BPMP (Boot and Power Management Processor) on Tegra186 in order to manipulate clocks and reset signals. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: unify Tegra186 Makefile a bitStephen Warren2016-07-21-6/+6
| | | | | | | | | | | | | | | Many files in arch/arm/mach-tegra are compiled conditionally based on Kconfig variables, or applicable to all platforms. We can let the main Tegra Makefile handle compiling (or not) those files to avoid each SoC- specific Makefile needing to duplicate entries for those files. This leaves the SoC-specific Makefiles to compile truly SoC-specific code. In the future, we'll hopefully add Kconfig variables for all the other files, and refactor those files, and so reduce the need for SoC-specific Makefiles and/or ifdefs in the Makefiles. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: add core Tegra186 supportStephen Warren2016-05-31-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the bare minimum code to support Tegra186, with UART and eMMC working. The empty gpio.h is required because <asm/gpio.h> includes it. A future cleanup round may be able to solve this for all Tegra generations at once. mach-tegra/Makefile is adjusted not to compile anything for Tegra186, but instead to defer everything to mach-tegra/tegra186/Makefile. This allows the SoC code to pick-and-choose which of the C files in the "common" mach-tegra/ directory to compile in based on the SoC's needs. Most of the code is not valid for Tegra186, and this approach removes the need for mach-tegra/Makefile to contain many SoC-specific ifdefs. This approach may be applied to all other Tegra SoCs in a future cleanup round. board186.c is introduced to replace board.c and board2.c. These files currently contain a slew of SoC- and board-specific code that is not valid for Tegra186. This approach avoids adding yet more ifdefs to those files. A future cleanup round may refactor most of board*.c into board-/ SoC-specific functions files thus allowing the top-level functions like board_init_early_f to be shared again. Signed-off-by: Stephen Warren <swarren@nvidia.com> Reviewed-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra: video: Clean up the old LCD/PWM driver codeSimon Glass2016-02-16-1/+0
| | | | | | | | Remove the old PWM code. Remove calls to CONFIG_LCD functions now that we are using driver model for video. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: rename dummy XUSB padctl implementationStephen Warren2015-11-12-1/+1
| | | | | | | | | | A future patch will soon move some of the XUSB padctl code into a common file in arch/arm/mach-tegra. Rename the existing dummy XUSB padctl file to avoid conflicting with that, or being confusing. 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: add custom MMU setup on ARMv8Stephen Warren2015-11-10-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This sets up a fine-grained page table, which is a requirement for noncached_init() to operate correctly. MMU setup code currently exists in a number of places: - A version in the core ARMv8 support code that sets up page tables that use very large block sizes that CONFIG_SYS_NONCACHED_MEMORY doesn't support. - Enhanced versions for fsl-lsch3 and zynmq that set up finer grained page tables. Ideally, rather than duplicating the MMU setup code yet again this patch would instead consolidate all the different routines into the core ARMv8 code so that it supported all use-cases. However, this will require significant effort since there appear to be a number of discrepancies[1] between different versions of the code, and between the defines/values by some copies of the MMU setup code use and the architectural MMU documentation. Some reverse engineering will be required to determine the intent of the current code. [1] For example, in the core ARMv8 MMU setup code, three defines named TCR_EL[123]_IPS_BITS exist, but only one of them sets the IPS field and the others set a different field (T1SZ) in the page tables. As far as I can tell so far, there should be no need to set different values per exception level nor to modify the T1SZ field at all, since TTBR1 shouldn't be enabled anyway. Another example is inconsistent values for *_VA_BITS between the current core ARMv8 MMU setup code and the various SoC- specific MMU setup code. Another example is that asm/armv8/mmu.h's value for SECTION_SHIFT doesn't match asm/system.h's MMU_SECTION_SHIFT; research is needed to determine which code relies on which of those values and why, and whether fixing the incorrect value will cause any regression. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: move VPR configuration to a later stageAlexandre Courbot2015-08-06-3/+1
| | | | | | | | | | | | | | | | U-boot is responsible for enabling the GPU DT node after all necessary configuration (VPR setup for T124) is performed. In order to be able to check whether this configuration has been performed right before booting the kernel, make it happen during board_init(). Also move VPR configuration into the more generic gpu.c file, which will also host other GPU-related functions, and let boards specify individually whether they need VPR setup or not. Signed-off-by: Alexandre Courbot <acourbot@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: Tegra210: Add support to common Tegra source/config filesTom Warren2015-07-28-1/+4
| | | | | | | | | | | Derived from Tegra124, modified as appropriate during T210 board bringup. Cleaned up debug statements to conserve string space, too. This also adds misc 64-bit changes from Thierry Reding/Stephen Warren. Signed-off-by: Tom Warren <twarren@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
* ARM: tegra: move NVIDIA common files to arch/arm/mach-tegraMasahiro Yamada2015-05-13-1/+2
| | | | | | | | | | | | | | | | | | | | | All the Tegra boards borrow the files from board/nvidia/common/ directory, i.e., board/nvidia/common/* are not vendor-common files, but SoC-common files. Move NVIDIA common files to arch/arm/mach-tegra/ to clean up Makefiles. As arch/arm/mach-tegra/board.c already exists, this commit renames board/nvidia/common/board.c to arch/arm/mach-tegra/board2.c, expecting they will be consolidated as a second step. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Tom Warren <twarren@nvidia.com> Cc: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* tegra124: Add PSCI support for Tegra124Jan Kiszka2015-05-13-0/+4
| | | | | | | | | | | | | | | 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>
* tegra: Move the pwm into tegra-commonSimon Glass2015-05-13-0/+1
| | | | | | | | This is needed for tegra124 also, so make it common and add a header file for tegra124. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Warren <twarren@nvidia.com>
* ARM: tegra: collect SoC sources into mach-tegraMasahiro Yamada2015-02-21-0/+31
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>