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path: root/arch/arm/mach-tegra/tegra124/cpu.c
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2018-07-26ARM: tegra: implement RAM repairBibek Basu
RAM repair has a few pre-requisites: 1) PMIC power supply (rail) enabled. 2) PMC CRAIL power partition powered. 3) Fuse clock active (it's the default). 4) PLLP reshift branch enabled (it's the default, when PLLP is active). RAM repair also only need run whenever specific partitions are powered (main SoC and CCPLEX respectively); RAM repair does not need to be triggered when any other partition changes state. start_cpu() needs to be re-ordered slightly to match these requirements. Note that C0NC and CE0 aren't required for RAM repair to operate, but they also do no harm, so the entire of powerup_cpus() is moved rather than splitting it up. The call to remove_cpu_resets() is moved last to ensure that all other actions complete before releasing reset; since the PMC power partitions are now enabled early, releasing reset is what causes the CPUs to start executing code, and RAM repair must complete before the CPU boots. Note that this commit is the result of squashing a numbmer of commits in NVIDIA's downstream L4T branch, hence the multiple signoffs below. Signed-off-by: Bibek Basu <bbasu@nvidia.com> Signed-off-by: Sandipan Patra <spatra@nvidia.com> Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-08-05Tegra: PLL: use per-SoC pllinfo table instead of PLL_DIVM/N/P, etc.Tom Warren
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>
2015-02-21ARM: tegra: collect SoC sources into mach-tegraMasahiro Yamada
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>