linux-kernel - [patch v9 3/4] Documentation: jtag: Add bindings for Aspeed SoC 24xx and 25xx families JTAG master driver

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Message-Id: <1505985932-27568-4-git-send-email-oleksandrs@mellanox.com>
Date:   Thu, 21 Sep 2017 12:25:31 +0300
From:   Oleksandr Shamray <oleksandrs@...lanox.com>
To:     gregkh@...uxfoundation.org, arnd@...db.de
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        devicetree@...r.kernel.org, openbmc@...ts.ozlabs.org,
        joel@....id.au, jiri@...nulli.us, tklauser@...tanz.ch,
        linux-serial@...r.kernel.org, mec@...ut.net, vadimp@...lanox.com,
        system-sw-low-level@...lanox.com, robh+dt@...nel.org,
        openocd-devel-owner@...ts.sourceforge.net,
        linux-api@...r.kernel.org, davem@...emloft.net, mchehab@...nel.org,
        Oleksandr Shamray <oleksandrs@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>
Subject: [patch v9 3/4] Documentation: jtag: Add bindings for Aspeed SoC 24xx and 25xx families JTAG master driver

It has been tested on Mellanox system with BMC equipped with
Aspeed 2520 SoC for programming CPLD devices.

Signed-off-by: Oleksandr Shamray <oleksandrs@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
Acked-by: Rob Herring <robh@...nel.org>
---
v8->v9
v7->v8
Comments pointed by pointed by Joel Stanley <joel.stan@...il.com>
- Change compatible string to ast2400 and ast2000

V6->v7
Comments pointed by Tobias Klauser <tklauser@...tanz.ch>
 - Fix spell "Doccumentation" -> "Documentation"

v5->v6
Comments pointed by Tobias Klauser <tklauser@...tanz.ch>
- Small nit: s/documentation/Documentation/

v4->v5

V3->v4
Comments pointed by Rob Herring <robh@...nel.org>
- delete unnecessary "status" and "reg-shift" descriptions in
  bndings file

v2->v3
Comments pointed by Rob Herring <robh@...nel.org>
- split Aspeed jtag driver and binding to sepatrate patches
- delete unnecessary "status" and "reg-shift" descriptions in
  bndings file
---
 .../devicetree/bindings/jtag/aspeed-jtag.txt       |   18 ++++++++++++++++++
 MAINTAINERS                                        |    1 +
 2 files changed, 19 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/jtag/aspeed-jtag.txt

diff --git a/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt
new file mode 100644
index 0000000..8cfc610
--- /dev/null
+++ b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt
@@ -0,0 +1,18 @@
+Aspeed JTAG driver for ast2400 and ast2500 SoC
+
+Required properties:
+- compatible:		Should be one of
+      - "aspeed,ast2400-jtag"
+      - "aspeed,ast2500-jtag"
+- reg			contains the offset and length of the JTAG memory
+			region
+- clocks		root clock of bus, should reference the APB clock
+- interrupts		should contain JTAG controller interrupt
+
+Example:
+jtag: jtag@...e4000 {
+	compatible = "aspeed,ast2500-jtag";
+	reg = <0x1e6e4000 0x1c>;
+	clocks = <&clk_apb>;
+	interrupts = <43>;
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 141aeaf..bfdfa94 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7299,6 +7299,7 @@ S:	Maintained
 F:	include/linux/jtag.h
 F:	include/uapi/linux/jtag.h
 F:	drivers/jtag/
+F:	Documentation/devicetree/bindings/jtag/
 
 K10TEMP HARDWARE MONITORING DRIVER
 M:	Clemens Ladisch <clemens@...isch.de>
-- 
1.7.1