lkml.org 
[lkml]   [2022]   [Jul]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    Subject[PATCH v6 0/7] clk/resets: baikal-t1: Add DDR/PCIe resets and xGMAC/SATA fixes
    Date
    Folks! It has been over four months since the first series submission for
    review. Please merge it in.

    Short summary regarding this patchset. The series starts from fixing of
    the clocks glitching cause by the Renesas 5P49V6901 chip in some
    circumstances. Afterwards a few more modifications are introduced to
    finally finish the Baikal-T1 CCU unit support up and prepare the code
    before adding the Baikal-T1 PCIe/xGMAC support. First of all it turned out
    I specified wrong DW xGMAC PTP reference clock divider in my initial
    patches. It must be 8, not 10. Secondly I was wrong to add a joint xGMAC
    Ref and PTP clock instead of having them separately defined. The SoC
    manual describes these clocks as separate fixed clock wrappers. Finally
    in order to close the SoC clock/reset support up we need to add the DDR
    and PCIe interfaces reset controls support. It's done in two steps. First
    I've moved the reset-controls-related code into a dedicated module. Then
    the DDR/PCIe reset-control functionality is added. As the series
    finalization we've decided to convert the Baikal-T1 clock/reset source
    drivers to mainly being the platform device driver and pre-initialize the
    basic clocks only at the early kernel boot stages.

    Link: https://lore.kernel.org/linux-pci/20220324010905.15589-1-Sergey.Semin@baikalelectronics.ru/
    Changelog v2:
    - Resubmit the series with adding @Philipp to the list of the recipients.

    Link: https://lore.kernel.org/linux-pci/20220330144320.27039-1-Sergey.Semin@baikalelectronics.ru/
    Changelog v3:
    - No comments. Just resend the series.
    - Rebased from v5.17 onto v5.18-rc3.

    Link: https://lore.kernel.org/linux-clk/20220503205722.24755-1-Sergey.Semin@baikalelectronics.ru/
    Changelog v4:
    - Completely split the CCU Dividers and Resets functionality up. (@Stephen)
    - Add a new fixes patch: "clk: baikal-t1: Actually enable SATA internal
    ref clock".
    - Add a new fixes patch: "reset: Fix devm bulk optional exclusive control
    getter".
    - Add a new fixes patch: "clk: vc5: Fix 5P49V6901 outputs disabling when
    enabling FOD".
    - Add a new feagure patch: "clk: baikal-t1: Convert to platform device
    driver".
    - Change the internal clock ID to the XGMAC-referred name.
    - Rebase onto the kernel v5.18.

    Link: https://lore.kernel.org/lkml/20220610072124.8714-1-Sergey.Semin@baikalelectronics.ru/
    Changelog v5:
    - Just resend.
    - Rebase onto the kernel v5.19-rcX.

    Link: https://lore.kernel.org/linux-clk/20220624141853.7417-1-Sergey.Semin@baikalelectronics.ru/
    Changelog v6:
    - Drop the patch
    [PATCH RESEND v5 1/8] reset: Fix devm bulk optional exclusive control getter
    since it has already been accepted by @Philipp.
    - Refactor the reset-control code to support the linear reset IDs only.
    (@Philipp)
    - Combine the reset-related code into a single file. (@Philipp)
    - Drop CCU_DIV_RST_MAP() macro. It's no longer used.

    Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
    Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
    Cc: Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>
    Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
    Cc: linux-clk@vger.kernel.org
    Cc: linux-mips@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org

    Serge Semin (7):
    clk: vc5: Fix 5P49V6901 outputs disabling when enabling FOD
    clk: baikal-t1: Fix invalid xGMAC PTP clock divider
    clk: baikal-t1: Add shared xGMAC ref/ptp clocks internal parent
    clk: baikal-t1: Add SATA internal ref clock buffer
    clk: baikal-t1: Move reset-controls code into a dedicated module
    clk: baikal-t1: Add DDR/PCIe directly controlled resets support
    clk: baikal-t1: Convert to platform device driver

    drivers/clk/baikal-t1/Kconfig | 12 +-
    drivers/clk/baikal-t1/Makefile | 1 +
    drivers/clk/baikal-t1/ccu-div.c | 84 +++++++--
    drivers/clk/baikal-t1/ccu-div.h | 17 +-
    drivers/clk/baikal-t1/ccu-pll.h | 8 +
    drivers/clk/baikal-t1/ccu-rst.c | 218 +++++++++++++++++++++++
    drivers/clk/baikal-t1/ccu-rst.h | 67 +++++++
    drivers/clk/baikal-t1/clk-ccu-div.c | 263 ++++++++++++++++------------
    drivers/clk/baikal-t1/clk-ccu-pll.c | 128 +++++++++++---
    drivers/clk/clk-versaclock5.c | 2 +-
    include/dt-bindings/reset/bt1-ccu.h | 9 +
    11 files changed, 648 insertions(+), 161 deletions(-)
    create mode 100644 drivers/clk/baikal-t1/ccu-rst.c
    create mode 100644 drivers/clk/baikal-t1/ccu-rst.h

    --
    2.35.1

    \
     
     \ /
      Last update: 2022-07-08 21:30    [W:4.816 / U:0.064 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site