Re: [PATCH 1/1] fpga: m10bmc-sec: Add support for N6000

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On Tue, 31 Jan 2023, Xu Yilun wrote:

> From: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
> Add support for PMCI-based flash access path and N6000 sec update
> support. Access to flash staging area is different for N6000 from that
> of the SPI interfaced counterparts.
> Introduce intel_m10bmc_flash_bulk_ops to allow interface specific
> differentiations for the flash access path for sec update and make
> m10bmc_sec_read/write() in sec update driver to use the new operations.
> The .flash_mutex serializes read/read. Flash update (erase+write) must
> use ->lock/unlock_write() to prevent reads during update (reads would
> timeout on setting flash MUX as BMC will prevent it).
> Create a type specific RSU status reg handler for N6000 because the
> field has moved from doorbell to auth result register.
> If a failure is detected while altering the flash MUX, it seems safer
> to try to set it back and doesn't seem harmful. Likely there are enough
> troubles in that case anyway so setting it back fails too (which is
> harmless sans the small extra delay) or just confirms that the value
> wasn't changed.
> Co-developed-by: Tianfei zhang <tianfei.zhang@xxxxxxxxx>
> Signed-off-by: Tianfei zhang <tianfei.zhang@xxxxxxxxx>
> Co-developed-by: Russ Weight <russell.h.weight@xxxxxxxxx>
> Signed-off-by: Russ Weight <russell.h.weight@xxxxxxxxx>
> Acked-by: Xu Yilun <yilun.xu@xxxxxxxxx>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
> Signed-off-by: Lee Jones <lee@xxxxxxxxxx>
> Link:
> ---
>  drivers/fpga/intel-m10-bmc-sec-update.c |  51 ++++-
>  drivers/mfd/intel-m10-bmc-pmci.c        | 242 +++++++++++++++++++++++-
>  include/linux/mfd/intel-m10-bmc.h       |  51 +++++
>  3 files changed, 336 insertions(+), 8 deletions(-)

I'm confused, what are you trying to achieve?

Who are you sending this to?

Lee Jones [李琼斯]

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