From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Shamray Subject: [patch v22 3/4] Documentation: jtag: Add bindings for Aspeed SoC 24xx and 25xx families JTAG master driver Date: Mon, 28 May 2018 13:34:11 +0300 Message-ID: <1527503652-21975-4-git-send-email-oleksandrs@mellanox.com> References: <1527503652-21975-1-git-send-email-oleksandrs@mellanox.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1527503652-21975-1-git-send-email-oleksandrs@mellanox.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: gregkh@linuxfoundation.org, arnd@arndb.de Cc: system-sw-low-level@mellanox.com, devicetree@vger.kernel.org, jiri@resnulli.us, vadimp@mellanox.com, linux-api@vger.kernel.org, openbmc@lists.ozlabs.org, linux-kernel@vger.kernel.org, openocd-devel-owner@lists.sourceforge.net, robh+dt@kernel.org, joel@jms.id.au, linux-serial@vger.kernel.org, Oleksandr Shamray , tklauser@distanz.ch, mchehab@kernel.org, davem@davemloft.net, linux-arm-kernel@lists.infradead.org List-Id: linux-api@vger.kernel.org It has been tested on Mellanox system with BMC equipped with Aspeed 2520 SoC for programming CPLD devices. Signed-off-by: Oleksandr Shamray Signed-off-by: Jiri Pirko Acked-by: Rob Herring --- v21->v22 v20->v21 v19->v20 v18->v19 v17->v18 v16->v17 v15->v16 Comments pointed by Joel Stanley - change clocks = <&clk_apb> to proper clocks = <&syscon ASPEED_CLK_APB> - add reset descriptions in bndings file v14->v15 v13->v14 v12->v13 v11->v12 v10->v11 v9->v10 v8->v9 v7->v8 Comments pointed by pointed by Joel Stanley - Change compatible string to ast2400 and ast2000 V6->v7 Comments pointed by Tobias Klauser - Fix spell "Doccumentation" -> "Documentation" v5->v6 Comments pointed by Tobias Klauser - Small nit: s/documentation/Documentation/ v4->v5 V3->v4 Comments pointed by Rob Herring - delete unnecessary "status" and "reg-shift" descriptions in bndings file v2->v3 Comments pointed by Rob Herring - 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 | 22 ++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 23 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..7c36eb6 --- /dev/null +++ b/Documentation/devicetree/bindings/jtag/aspeed-jtag.txt @@ -0,0 +1,22 @@ +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 in the second cell +- resets phandle to reset controller with the reset number in + the second cell +- interrupts should contain JTAG controller interrupt + +Example: +jtag: jtag@1e6e4000 { + compatible = "aspeed,ast2500-jtag"; + reg = <0x1e6e4000 0x1c>; + clocks = <&syscon ASPEED_CLK_APB>; + resets = <&syscon ASPEED_RESET_JTAG_MASTER>; + interrupts = <43>; +}; diff --git a/MAINTAINERS b/MAINTAINERS index e7b8b2c..a5e5f75 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7617,6 +7617,7 @@ 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 -- 1.7.1