Hi Jagan,
> -----Original Message-----
> From: Jagan Teki <ja...@amarulasolutions.com>
> Sent: Monday, November 1, 2021 10:07 PM
> To: Roman Bacik <roman.ba...@broadcom.com>
> Cc: U-Boot Mailing List <u-boot@lists.denx.de>; Rayagonda Kokatanur
> <rayagonda.kokata...@broadcom.com>; Bharat Gooty
> <bharat.go...@broadcom.com>; Vignesh R <vigne...@ti.com>
> Subject: Re: [PATCH v4] driver: spi: add bcm iproc qspi support.
>
> On Tue, Nov 2, 2021 at 4:57 AM Roman Bacik <roman.ba...@broadcom.com>
> wrote:
> >
> > Hi Jagan,
> >
> > On Mon, Nov 1, 2021 at 12:12 AM Jagan Teki
> <ja...@amarulasolutions.com> wrote:
> > >
> > > On Tue, Oct 26, 2021 at 1:07 AM Roman Bacik
> <roman.ba...@broadcom.com> wrote:
> > > >
> > > > From: Rayagonda Kokatanur <rayagonda.kokata...@broadcom.com>
> > > >
> > > > IPROC qspi driver supports both BSPI and MSPI modes.
> > > >
> > > > Signed-off-by: Rayagonda Kokatanur
> <rayagonda.kokata...@broadcom.com>
> > > > Signed-off-by: Bharat Gooty <bharat.go...@broadcom.com>
> > > > Acked-by: Rayagonda Kokatanur
> <rayagonda.kokata...@broadcom.com>
> > > >
> > > > Signed-off-by: Roman Bacik <roman.ba...@broadcom.com>
> > > > ---
> > > >
> > > > Changes in v4:
> > > > - move iproc_qspi.c from spi to mtd/spi
> > > > - remove iproc_qspi.h
> > > > - rename IPROC_QSPI to SPI_FLASH_IPROC
> > > >
> > > > Changes in v3:
> > > > - fix warning by including linux/delay.h
> > > > - change ofdata_to_platdata to of_to_plat
> > > > - change priv_auto_alloc_size to priv_auto
> > > >
> > > > Changes in v2:
> > > > - remove include spi-nor.h
> > > > - define and use named BITs for writing register values
> > > > - remove bspi_set_4byte_mode() method
> > > >
> > > > drivers/mtd/spi/Kconfig | 6 +
> > > > drivers/mtd/spi/Makefile | 1 +
> > > > drivers/mtd/spi/iproc_qspi.c | 718
> +++++++++++++++++++++++++++++++++++
> > > > 3 files changed, 725 insertions(+)
> > > > create mode 100644 drivers/mtd/spi/iproc_qspi.c
> > >
> > > Look like you confused what I've mentioned before, your driver is
> > > flash specific so add a driver in UCLASS_SPI_FLASH. drivers with
> > > UCLASS_SPI to be in drivers/spi/
> > >
> > > Jagan.
> >
> > This is a controller driver and it is currently meant to be used as
> > follows:
> >
> > qspi: spi@370000 {
> > compatible = "brcm,iproc-qspi";
> > reg = <0x00370000 0x100>,
> > <0x00370100 0x100>,
> > <0x00370200 0x200>;
> > reg-names = "bspi", "bspi_raf", "mspi";
> > flash-iomap-addr = /bits/ 64 <0x70000000>;
> > #address-cells = <1>;
> > #size-cells = <0>;
> > spi_nor_flash: spi_flash@0 {
> > compatible = "jedec,spi-nor";
> > reg = <0>;
> > spi-max-frequency = <12500000>;
> > spi-cpol;
> > spi-cpha;
> > spi-tx-bus-width = <1>;
> > spi-rx-bus-width = <4>;
> > };
> > };
>
> Does this binding is from Linux? if yes please share Linux driver.
>
> Jagan.Here is Linux binding document: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/spi/brcm,spi-bcm-qspi.yaml And here is Linux driver: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/spi/spi-bcm-qspi.c Thanks, Roman -- This electronic communication and the information and any files transmitted with it, or attached to it, are confidential and are intended solely for the use of the individual or entity to whom it is addressed and may contain information that is confidential, legally privileged, protected by privacy laws, or otherwise restricted from disclosure to anyone else. If you are not the intended recipient or the person responsible for delivering the e-mail to the intended recipient, you are hereby notified that any use, copying, distributing, dissemination, forwarding, printing, or copying of this e-mail is strictly prohibited. If you received this e-mail in error, please return the e-mail to the sender, delete it from your computer, and destroy any printed copy of it.
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