On 8/30/18 9:04 PM, Dmitry Osipenko wrote: > Hello, > > All consumer-grade Tegra30 devices, like Nexus 7 tablet; Ouya console and > others, use Trusted Foundations firmware that doesn't allow CPU to access > secure registers directly from the Linux kernel, these accesses shall be > done via the firmware calls. This patch-series adds a full-featured support > of the Trusted Foundations firmware that opens the door for supporting of > various Tegra30-based devices in the upstream Linux kernel. > > Changelog: > > v3: - Implemented suspend-resume support. > > - Reworked arm/firmware/trusted_foundations.c a tad. Now cache > is getting properly initialized, cache enabling / disabling is > supported. > > v2: > - The "Don't apply CPU erratas in insecure mode" patch got some > cleanup, in particular resolved the messiness in > __tegra_cpu_reset_handler_data. > > - Added a comment to tf_cache_write_sec(), justifying the warning > message. > > Dmitry Osipenko (8): > ARM: trusted_foundations: Implement L2 cache initialization callback > ARM: trusted_foundations: Make prepare_idle call to take mode argument > ARM: trusted_foundations: Provide information about whether firmware > is registered > ARM: tegra: Setup L2 cache using Trusted Foundations firmware > ARM: tegra: Don't apply CPU erratas in insecure mode > ARM: tegra: Always boot CPU in ARM-mode > ARM: tegra: Support L2 cache maintenance done via firmware > ARM: tegra: Add firmware calls required for suspend-resume > > arch/arm/firmware/trusted_foundations.c | 80 +++++++++++++++++++++- > arch/arm/include/asm/firmware.h | 2 +- > arch/arm/include/asm/trusted_foundations.h | 13 ++++ > arch/arm/mach-tegra/cpuidle-tegra114.c | 3 +- > arch/arm/mach-tegra/pm.c | 43 ++++++++++++ > arch/arm/mach-tegra/reset-handler.S | 66 ++++++++++++++---- > arch/arm/mach-tegra/reset.c | 3 + > arch/arm/mach-tegra/reset.h | 9 ++- > arch/arm/mach-tegra/sleep-tegra20.S | 4 ++ > arch/arm/mach-tegra/sleep.S | 4 ++ > arch/arm/mach-tegra/tegra.c | 10 +++ > 11 files changed, 216 insertions(+), 21 deletions(-) > ping
