From: Conor Dooley <conor.dooley@microchip.com>
To: <linux-fpga@vger.kernel.org>
Cc: <conor@kernel.org>, <conor.dooley@microchip.com>,
Daire McNamara <daire.mcnamara@microchip.com>,
Rob Herring <robh+dt@kernel.org>,
"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
Moritz Fischer <mdf@kernel.org>, Wu Hao <hao.wu@intel.com>,
Xu Yilun <yilun.xu@intel.com>, Tom Rix <trix@redhat.com>,
<linux-riscv@lists.infradead.org>, <devicetree@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Rob Herring <robh@kernel.org>
Subject: [PATCH v2 2/7] dt-bindings: soc: microchip: add a property for system controller flash
Date: Fri, 31 Mar 2023 08:18:18 +0100 [thread overview]
Message-ID: <20230331071823.956087-3-conor.dooley@microchip.com> (raw)
In-Reply-To: <20230331071823.956087-1-conor.dooley@microchip.com>
The system controller "shares" a SPI flash device with a QSPI controller
in the MSS. This flash is used to store FPGA bitstreams & other
metadata. IAP and Auto Upgrade both write images to this flash that the
System Controller will use to re-program the FPGA.
Add a phandle property signifying which flash device is connected to the
system controller.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
---
.../soc/microchip/microchip,mpfs-sys-controller.yaml | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
index 04ffee3a7c59..aee96c639af7 100644
--- a/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
+++ b/Documentation/devicetree/bindings/soc/microchip/microchip,mpfs-sys-controller.yaml
@@ -26,6 +26,16 @@ properties:
compatible:
const: microchip,mpfs-sys-controller
+ microchip,bitstream-flash:
+ $ref: /schemas/types.yaml#/definitions/phandle
+ description:
+ The SPI flash connected to the system controller's QSPI controller.
+ The system controller may retrieve FPGA bitstreams from this flash to
+ perform In-Application Programming (IAP) or during device initialisation
+ for Auto Update. The MSS and system controller have separate QSPI
+ controllers and this flash is connected to both. Software running in the
+ MSS can write bitstreams to the flash.
+
required:
- compatible
- mboxes
--
2.39.2
next prev parent reply other threads:[~2023-03-31 7:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-31 7:18 [PATCH v2 0/7] PolarFire SoC Auto Update Support Conor Dooley
2023-03-31 7:18 ` [PATCH v2 1/7] soc: microchip: mpfs: add a prefix to rx_callback() Conor Dooley
2023-03-31 7:18 ` Conor Dooley [this message]
2023-03-31 7:18 ` [PATCH v2 3/7] soc: microchip: mpfs: enable access to the system controller's flash Conor Dooley
2023-03-31 7:18 ` [PATCH v2 4/7] soc: microchip: mpfs: print service status in warning message Conor Dooley
2023-03-31 7:18 ` [PATCH v2 5/7] soc: microchip: mpfs: add auto-update subdev to system controller Conor Dooley
2023-03-31 7:18 ` [PATCH v2 6/7] fpga: add PolarFire SoC Auto Update support Conor Dooley
2023-04-02 10:57 ` Xu Yilun
2023-04-11 11:51 ` Conor Dooley
2023-04-14 12:40 ` Xu Yilun
2023-03-31 7:18 ` [PATCH v2 7/7] riscv: dts: microchip: add the mpfs' system controller qspi & associated flash Conor Dooley
2023-04-02 8:00 ` [PATCH v2 0/7] PolarFire SoC Auto Update Support Xu Yilun
2023-04-02 8:23 ` Conor Dooley
2023-04-03 19:34 ` (subset) " Conor Dooley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230331071823.956087-3-conor.dooley@microchip.com \
--to=conor.dooley@microchip.com \
--cc=conor@kernel.org \
--cc=daire.mcnamara@microchip.com \
--cc=devicetree@vger.kernel.org \
--cc=hao.wu@intel.com \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-fpga@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=mdf@kernel.org \
--cc=robh+dt@kernel.org \
--cc=robh@kernel.org \
--cc=trix@redhat.com \
--cc=yilun.xu@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).