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Message-ID: <CAMdYzYobqhLAHhDU9E-iu-HMKSaGCDBMU-2OacGEZOQnF2ZyMw@mail.gmail.com>
Date:   Mon, 16 Aug 2021 20:52:07 -0400
From:   Peter Geis <pgwipeout@...il.com>
To:     Jon Lin <jon.lin@...k-chips.com>
Cc:     linux-spi@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Johan Jonker <jbx6244@...il.com>,
        Sandy Huang <hjc@...k-chips.com>, yifeng.zhao@...k-chips.com,
        Sugar Zhang <sugar.zhang@...k-chips.com>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        linux-mtd@...ts.infradead.org, p.yadav@...com,
        Chris Morgan <macroalpha82@...il.com>,
        devicetree <devicetree@...r.kernel.org>,
        arm-mail-list <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org
Subject: Re: [PATCH v13 0/6] Add Rockchip SFC(serial flash controller) support

On Thu, Aug 12, 2021 at 9:49 AM Jon Lin <jon.lin@...k-chips.com> wrote:
>

Good Evening,

Tested successfully on the rk3566 based Quartz64 Model A.
Tested-by: Peter Geis <pgwipeout@...il.com>

Very Respectfully,
Peter Geis

>
>
> Changes in v13:
> - Provide independent interfaces to obtain RX TX FIFO status respectively
> - Add more debug information
> - Depress DMA limitation
>
> Changes in v12:
> - Remove useless oneOf lable
> - Add sfc controller discription
> - Remove the limitation of SFC_MIN_SPEED_HZ
> - Add IRQ_NONE method for irq handler
> - Add SPI_MASTER_HALF_DUPLEX flags
> - Add sfc interrupt mask bits and status register initial progress
>
> Changes in v11:
> - The tx is set to 1 for Odroid Go Advance device
>
> Changes in v10:
> - Fix dma transfer logic
>
> Changes in v9:
> - Separate DMA IRQ setting and wait_completion from DMA fifo transfer
>   function to make dma_status_poll be possible(Which I will implement
>   in u-boot)
> - Add SFC Kconfig detail comment
>
> Changes in v8:
> - Fix indent 4 to 2 in yaml
>
> Changes in v7:
> - Fix up the sclk_sfc parent error in rk3036
> - Unify to "rockchip,sfc" compatible id because all the feature update
>   will have a new IP version, so the driver is used for the SFC IP in
>   all SoCs
> - Change to use node "sfc" to name the SFC pinctrl group
> - Add subnode reg property check
> - Add rockchip_sfc_adjust_op_size to workaround in CMD + DUMMY case
> - Limit max_iosize to 32KB
>
> Changes in v6:
> - Add support in device trees for rv1126(Declared in series 5 but not
>   submitted)
> - Change to use "clk_sfc" "hclk_sfc" as clock lable, since it does not
>   affect interpretation and has been widely used
> - Support sfc tx_dual, tx_quad(Declared in series 5 but not submitted)
> - Simplify the code, such as remove "rockchip_sfc_register_all"(Declared
>   in series 5 but not submitted)
> - Support SFC ver4 ver5(Declared in series 5 but not submitted)
> - Add author Chris Morgan and Jon Lin to spi-rockchip-sfc.c
> - Change to use devm_spi_alloc_master and spi_unregister_master
>
> Changes in v5:
> - Add support in device trees for rv1126
> - Support sfc tx_dual, tx_quad
> - Simplify the code, such as remove "rockchip_sfc_register_all"
> - Support SFC ver4 ver5
>
> Changes in v4:
> - Changing patch back to an "RFC". An engineer from Rockchip
>   reached out to me to let me know they are working on this patch for
>   upstream, I am submitting this v4 for the community to see however
>   I expect Jon Lin (jon.lin@...k-chips.com) will submit new patches
>   soon and these are the ones we should pursue for mainlining. Jon's
>   patch series should include support for more hardware than this
>   series.
> - Clean up documentation more and ensure it is correct per
>   make dt_binding_check.
> - Add support in device trees for rk3036, rk3308, and rv1108.
> - Add ahb clock (hclk_sfc) support for rk3036.
> - Change rockchip_sfc_wait_fifo_ready() to use a switch statement.
> - Change IRQ code to only mark IRQ as handled if it handles the
>   specific IRQ (DMA transfer finish) it is supposed to handle.
>
> Changes in v3:
> - Changed the name of the clocks to sfc/ahb (from clk-sfc/clk-hsfc).
> - Changed the compatible string from rockchip,sfc to
>   rockchip,rk3036-sfc. A quick glance at the datasheets suggests this
>   driver should work for the PX30, RK180x, RK3036, RK312x, RK3308 and
>   RV1108 SoCs, and possibly more. However, I am currently only able
>   to test this on a PX30 (an RK3326). The technical reference manuals
>   appear to list the same registers for each device.
> - Corrected devicetree documentation for formatting and to note these
>   changes.
> - Replaced the maintainer with Heiko Stuebner and myself, as we will
>   take ownership of this going forward.
> - Noted that the device (per the reference manual) supports 4 CS, but
>   I am only able to test a single CS (CS 0).
> - Reordered patches to comply with upstream rules.
>
> Changes in v2:
> - Reimplemented driver using spi-mem subsystem.
> - Removed power management code as I couldn't get it working properly.
> - Added device tree bindings for Odroid Go Advance.
>
> Changes in v1:
> hanges made in this new series versus the v8 of the old series:
> - Added function to read spi-rx-bus-width from device tree, in the
>   event that the SPI chip supports 4x mode but only has 2 pins
>   wired (such as the Odroid Go Advance).
> - Changed device tree documentation from txt to yaml format.
> - Made "reset" message a dev_dbg from a dev_info.
> - Changed read and write fifo functions to remove redundant checks.
> - Changed the write and read from relaxed to non-relaxed when
>   starting the DMA transfer or reading the DMA IRQ.
> - Changed from dma_coerce_mask_and_coherent to just
>   dma_set_mask_and_coherent.
> - Changed name of get_if_type to rockchip_sfc_get_if_type.
>
> Chris Morgan (6):
>   dt-bindings: rockchip-sfc: Bindings for Rockchip serial flash
>     controller
>   spi: rockchip-sfc: add rockchip serial flash controller
>   arm64: dts: rockchip: Add SFC to PX30
>   arm: dts: rockchip: Add SFC to RV1108
>   arm64: dts: rockchip: Add SFC to RK3308
>   arm64: dts: rockchip: Enable SFC for Odroid Go Advance
>
>  .../devicetree/bindings/spi/rockchip-sfc.yaml |  91 +++
>  arch/arm/boot/dts/rv1108.dtsi                 |  37 +
>  arch/arm64/boot/dts/rockchip/px30.dtsi        |  38 +
>  arch/arm64/boot/dts/rockchip/rk3308.dtsi      |  37 +
>  .../boot/dts/rockchip/rk3326-odroid-go2.dts   |  16 +
>  drivers/spi/Kconfig                           |  12 +
>  drivers/spi/Makefile                          |   1 +
>  drivers/spi/spi-rockchip-sfc.c                | 694 ++++++++++++++++++
>  8 files changed, 926 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/spi/rockchip-sfc.yaml
>  create mode 100644 drivers/spi/spi-rockchip-sfc.c
>
> --
> 2.17.1
>
>
>
>
> _______________________________________________
> Linux-rockchip mailing list
> Linux-rockchip@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-rockchip

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