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[v8,00/10] hw/ssi: imx_spi: Fix various bugs in the imx_spi model

Message ID 1611063546-20278-1-git-send-email-bmeng.cn@gmail.com (mailing list archive)
Headers show
Series hw/ssi: imx_spi: Fix various bugs in the imx_spi model | expand

Message

Bin Meng Jan. 19, 2021, 1:38 p.m. UTC
From: Bin Meng <bin.meng@windriver.com>

This v8 series is based on the following 2 versions:

- v5 series sent from Bin
  http://patchwork.ozlabs.org/project/qemu-devel/list/?series=223919
- v7 series sent from Philippe
  http://patchwork.ozlabs.org/project/qemu-devel/list/?series=224612

This series fixes a bunch of bugs in current implementation of the imx
spi controller, including the following issues:

- remove imx_spi_update_irq() in imx_spi_reset()
- chip select signal was not lower down when spi controller is disabled
- round up the tx burst length to be multiple of 8
- transfer incorrect data when the burst length is larger than 32 bit
- spi controller tx and rx fifo endianness is incorrect
- remove pointless variable (s->burst_length) initialization (Philippe)
- rework imx_spi_reset() to keep CONREG register value (Philippe)
- rework imx_spi_read() to handle block disabled (Philippe)
- rework imx_spi_write() to handle block disabled (Philippe)

Tested with upstream U-Boot v2020.10 (polling mode) and VxWorks 7
(interrupt mode).

Changes in v8:
- keep the controller disable logic in the ECSPI_CONREG case
  in imx_spi_write()

Changes in v7:
- remove the RFC tag

Changes in v6:
- new patch: [RFC] remove pointless variable initialization
- new patch: [RFC] rework imx_spi_reset() to keep CONREG register value
- new patch: [RFC] rework imx_spi_read() to handle block disabled
- new patch: [RFC] rework imx_spi_write() to handle block disabled

Changes in v5:
- rename imx_spi_hard_reset() to imx_spi_soft_reset()
- round up the burst length to be multiple of 8

Changes in v4:
- adujst the patch 2,3 order
- rename imx_spi_soft_reset() to imx_spi_hard_reset() to avoid confusion
- s/normal/common/ in the commit message
- log the burst length value in the log message

Changes in v3:
- new patch: remove imx_spi_update_irq() in imx_spi_reset()
- Move the chip selects disable out of imx_spi_reset()
- new patch: log unimplemented burst length
- Simplify the tx fifo endianness handling

Changes in v2:
- Fix the "Fixes" tag in the commit message
- Use ternary operator as Philippe suggested

Bin Meng (5):
  hw/ssi: imx_spi: Use a macro for number of chip selects supported
  hw/ssi: imx_spi: Remove imx_spi_update_irq() in imx_spi_reset()
  hw/ssi: imx_spi: Round up the burst length to be multiple of 8
  hw/ssi: imx_spi: Correct the burst length > 32 bit transfer logic
  hw/ssi: imx_spi: Correct tx and rx fifo endianness

Philippe Mathieu-Daudé (4):
  hw/ssi: imx_spi: Remove pointless variable initialization
  hw/ssi: imx_spi: Rework imx_spi_reset() to keep CONREG register value
  hw/ssi: imx_spi: Rework imx_spi_read() to handle block disabled
  hw/ssi: imx_spi: Rework imx_spi_write() to handle block disabled

Xuzhou Cheng (1):
  hw/ssi: imx_spi: Disable chip selects when controller is disabled

 include/hw/ssi/imx_spi.h |   5 +-
 hw/ssi/imx_spi.c         | 138 +++++++++++++++++++++++++++++------------------
 2 files changed, 90 insertions(+), 53 deletions(-)

Comments

Bin Meng Jan. 22, 2021, 1:36 p.m. UTC | #1
On Tue, Jan 19, 2021 at 9:40 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> From: Bin Meng <bin.meng@windriver.com>
>
> This v8 series is based on the following 2 versions:
>
> - v5 series sent from Bin
>   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=223919
> - v7 series sent from Philippe
>   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=224612
>
> This series fixes a bunch of bugs in current implementation of the imx
> spi controller, including the following issues:
>
> - remove imx_spi_update_irq() in imx_spi_reset()
> - chip select signal was not lower down when spi controller is disabled
> - round up the tx burst length to be multiple of 8
> - transfer incorrect data when the burst length is larger than 32 bit
> - spi controller tx and rx fifo endianness is incorrect
> - remove pointless variable (s->burst_length) initialization (Philippe)
> - rework imx_spi_reset() to keep CONREG register value (Philippe)
> - rework imx_spi_read() to handle block disabled (Philippe)
> - rework imx_spi_write() to handle block disabled (Philippe)
>
> Tested with upstream U-Boot v2020.10 (polling mode) and VxWorks 7
> (interrupt mode).
>
> Changes in v8:
> - keep the controller disable logic in the ECSPI_CONREG case
>   in imx_spi_write()

Ping?
Bin Meng Jan. 28, 2021, 7:15 a.m. UTC | #2
On Fri, Jan 22, 2021 at 9:36 PM Bin Meng <bmeng.cn@gmail.com> wrote:
>
> On Tue, Jan 19, 2021 at 9:40 PM Bin Meng <bmeng.cn@gmail.com> wrote:
> >
> > From: Bin Meng <bin.meng@windriver.com>
> >
> > This v8 series is based on the following 2 versions:
> >
> > - v5 series sent from Bin
> >   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=223919
> > - v7 series sent from Philippe
> >   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=224612
> >
> > This series fixes a bunch of bugs in current implementation of the imx
> > spi controller, including the following issues:
> >
> > - remove imx_spi_update_irq() in imx_spi_reset()
> > - chip select signal was not lower down when spi controller is disabled
> > - round up the tx burst length to be multiple of 8
> > - transfer incorrect data when the burst length is larger than 32 bit
> > - spi controller tx and rx fifo endianness is incorrect
> > - remove pointless variable (s->burst_length) initialization (Philippe)
> > - rework imx_spi_reset() to keep CONREG register value (Philippe)
> > - rework imx_spi_read() to handle block disabled (Philippe)
> > - rework imx_spi_write() to handle block disabled (Philippe)
> >
> > Tested with upstream U-Boot v2020.10 (polling mode) and VxWorks 7
> > (interrupt mode).
> >
> > Changes in v8:
> > - keep the controller disable logic in the ECSPI_CONREG case
> >   in imx_spi_write()
>
> Ping?

Could we get this applied soon if no more comments?

Regards,
Bin
Peter Maydell Jan. 28, 2021, 1:51 p.m. UTC | #3
On Thu, 28 Jan 2021 at 07:15, Bin Meng <bmeng.cn@gmail.com> wrote:
>
> On Fri, Jan 22, 2021 at 9:36 PM Bin Meng <bmeng.cn@gmail.com> wrote:
> >
> > On Tue, Jan 19, 2021 at 9:40 PM Bin Meng <bmeng.cn@gmail.com> wrote:
> > >
> > > From: Bin Meng <bin.meng@windriver.com>
> > >
> > > This v8 series is based on the following 2 versions:
> > >
> > > - v5 series sent from Bin
> > >   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=223919
> > > - v7 series sent from Philippe
> > >   http://patchwork.ozlabs.org/project/qemu-devel/list/?series=224612
> > >
> > > This series fixes a bunch of bugs in current implementation of the imx
> > > spi controller, including the following issues:
> > >
> > > - remove imx_spi_update_irq() in imx_spi_reset()
> > > - chip select signal was not lower down when spi controller is disabled
> > > - round up the tx burst length to be multiple of 8
> > > - transfer incorrect data when the burst length is larger than 32 bit
> > > - spi controller tx and rx fifo endianness is incorrect
> > > - remove pointless variable (s->burst_length) initialization (Philippe)
> > > - rework imx_spi_reset() to keep CONREG register value (Philippe)
> > > - rework imx_spi_read() to handle block disabled (Philippe)
> > > - rework imx_spi_write() to handle block disabled (Philippe)
> > >
> > > Tested with upstream U-Boot v2020.10 (polling mode) and VxWorks 7
> > > (interrupt mode).
> > >
> > > Changes in v8:
> > > - keep the controller disable logic in the ECSPI_CONREG case
> > >   in imx_spi_write()
> >
> > Ping?
>
> Could we get this applied soon if no more comments?

Sorry, I think I missed this re-send. I've reviewed or left
comments on the patches that were still unreviewed.

thanks
-- PMM