linux-kernel - [patch v3 3/3] doccumentation: jtag: Add bindings for Aspeed SoC 24xx and 25xx families JTAG master driver

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Message-Id: <1502791207-26951-4-git-send-email-oleksandrs@mellanox.com>
Date:   Tue, 15 Aug 2017 13:00:07 +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@...llanox.com,
        system-sw-low-level@...lanox.com, robh+dt@...nel.org,
        openocd-devel-owner@...ts.sourceforge.net,
        Oleksandr Shamray <oleksandrs@...lanox.com>,
        Jiri Pirko <jiri@...lanox.com>
Subject: [patch v3 3/3] doccumentation: 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>
---
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       |   19 +++++++++++++++++++
 1 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..4743d6d
--- /dev/null
+++ b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt
@@ -0,0 +1,19 @@
+Aspeed JTAG driver for ast2400 and ast2500 SoC
+
+Required properties:
+- compatible:		Should be one of
+      - "aspeed,aspeed2400-jtag"
+      - "aspeed,aspeed2500-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,aspeed2500-jtag";
+	reg = <0x1e6e4000 0x1c>;
+	reg-shift = <2>;
+	clocks = <&clk_apb>;
+	interrupts = <43>;
+};
-- 
1.7.1