From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: barebox@lists.infradead.org
Cc: devicetree@vger.kernel.org, Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: [PATCH v4 3/5] DT: Add binding for Altera FPGAs in passive-serial mode
Date: Mon, 8 Sep 2014 11:29:09 +0200 [thread overview]
Message-ID: <1410168551-6588-4-git-send-email-s.trumtrar@pengutronix.de> (raw)
In-Reply-To: <1410168551-6588-1-git-send-email-s.trumtrar@pengutronix.de>
From: Sascha Hauer <s.hauer@pengutronix.de>
Altera FPGAs that are programmed via SPI use the passive serial protocol.
Add a simple binding that describes the setup for this usecase.
Cc: devicetree@vger.kernel.org
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
.../bindings/firmware/altr,passive-serial.txt | 24 ++++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/firmware/altr,passive-serial.txt
diff --git a/Documentation/devicetree/bindings/firmware/altr,passive-serial.txt b/Documentation/devicetree/bindings/firmware/altr,passive-serial.txt
new file mode 100644
index 000000000000..d357dd39cf67
--- /dev/null
+++ b/Documentation/devicetree/bindings/firmware/altr,passive-serial.txt
@@ -0,0 +1,24 @@
+Altera FPGAs in passive serial mode
+-----------------------------------
+
+This binding defines the control interface to Altera FPGAs in
+passive serial mode. This is used to upload the firmware and
+to start the FPGA.
+
+Required properties:
+- compatible: shall be "altr,fpga-passive-serial"
+- reg: SPI chip select
+- nstat-gpios: Specify GPIO for controlling the nstat pin
+- confd-gpios: Specify GPIO for controlling the confd pin
+- nconfig-gpios: Specify GPIO for controlling the nconfig pin
+
+Example:
+
+ fpga@0 {
+ compatible = "altr,fpga-passive-serial";
+ nstat-gpios = <&gpio4 18 0>;
+ confd-gpios = <&gpio4 19 0>;
+ nconfig-gpios = <&gpio4 20 0>;
+ spi-max-frequency = <10000000>;
+ reg = <0>;
+ };
--
2.1.0
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
next prev parent reply other threads:[~2014-09-08 9:29 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-08 9:29 [PATCH v4 0/5] firmware programming interface Steffen Trumtrar
2014-09-08 9:29 ` [PATCH v4 1/5] Add a Firmware programming framework Steffen Trumtrar
2014-09-08 9:29 ` [PATCH v4 2/5] Firmware: provide a handler to program Altera FPGAs Steffen Trumtrar
2014-09-08 9:29 ` Steffen Trumtrar [this message]
2014-09-08 9:29 ` [PATCH v4 4/5] Firmware: socfpga: Add SoCFPGA FPGA program support Steffen Trumtrar
2014-09-08 9:29 ` [PATCH v4 5/5] DT: Add binding for Altera SOCFPGA FPGA Manager Steffen Trumtrar
2014-09-09 8:30 ` [PATCH v4 0/5] firmware programming interface Sascha Hauer
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=1410168551-6588-4-git-send-email-s.trumtrar@pengutronix.de \
--to=s.trumtrar@pengutronix.de \
--cc=barebox@lists.infradead.org \
--cc=devicetree@vger.kernel.org \
/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