[PATCH v8 0/3] Timer support for ARM Tegra

[Thierry Reding]

On Wed, Feb 01, 2023 at 10:53:00AM +0200, Svyatoslav Ryhel wrote:
> - ARM: tegra: remap clock_osc_freq for all Tegra family
> Enum clock_osc_freq was designed to use only with T20.
> This patch remaps it to use additional frequencies, added in
> T30+ SoC while maintaining backwards compatibility with T20.
> 
> - drivers: timer: add timer driver for ARMv7 based Tegra devices
> Add timer support for T20/T30/T114/T124 and T210 based devices.
> Driver is based on DM, has device tree support and can be
> used on SPL and early boot stage.
> 
> Arm64 Tegra (apart T210) according to comment in tegra-common.h use
> architected timer.
> 
> - ARM: tegra: include timer as default option
> Enable TIMER and TEGRA_TIMER for TEGRA_ARMV7_COMMON and TEGRA210.
> Additionally enable SPL_TIMER if build as SPL part and drop
> deprecated configs from common header.
> 
> ---
> Changed from v7
>  - configured timer selection only for armv7 Tegra and T210
> 
> Changed from v6
>  - use clk_m as timer calibration clock (this should properly fix T210)
>  - enable timer for T210
> 
> Changed from v5:
>  - added paz00 tester
> 
> Changed from v4:
>  - added comments
> 
> Changed from v3:
>  - removed BOOTSTAGE ifdefs
>  - use early timer on boot stage unconditionally
> ---
> 
> Svyatoslav Ryhel (3):
>   ARM: tegra: remap clock_osc_freq for all Tegra family
>   drivers: timer: add driver for ARMv7 based Tegra devices and T210
>   ARM: tegra: include timer as default option
> 
>  arch/arm/Kconfig                        |   1 +
>  arch/arm/include/asm/arch-tegra/clock.h |   9 +-
>  arch/arm/mach-tegra/Kconfig             |   4 +
>  arch/arm/mach-tegra/clock.c             |  17 +++-
>  arch/arm/mach-tegra/cpu.c               |  70 ++++++++++---
>  arch/arm/mach-tegra/tegra114/clock.c    |  13 +--
>  arch/arm/mach-tegra/tegra124/clock.c    |  13 +--
>  arch/arm/mach-tegra/tegra20/clock.c     |   4 +-
>  arch/arm/mach-tegra/tegra210/clock.c    |  22 +---
>  arch/arm/mach-tegra/tegra30/clock.c     |  10 +-
>  drivers/timer/Kconfig                   |   8 ++
>  drivers/timer/Makefile                  |   1 +
>  drivers/timer/tegra-timer.c             | 130 ++++++++++++++++++++++++
>  drivers/usb/host/ehci-tegra.c           |  46 +++++++--
>  include/configs/tegra-common.h          |   6 --
>  15 files changed, 275 insertions(+), 79 deletions(-)
>  create mode 100644 drivers/timer/tegra-timer.c

This works fine on Beaver (Tegra30), Jetson TK1 (Tegra124), Jetson TX1
(Tegra210) and Jetson TX2 (Tegra186), so:

Tested-by: Thierry Reding <treding at nvidia.com>
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