From mboxrd@z Thu Jan 1 00:00:00 1970 From: Markus Mayer Subject: [PATCH v2 1/2] dt/bindings: Add bindings for Broadcom STB DRAM Sensors Date: Tue, 13 Jun 2017 15:37:09 -0700 Message-ID: <20170613223710.31719-2-code@mmayer.net> References: <20170613223710.31719-1-code@mmayer.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20170613223710.31719-1-code@mmayer.net> 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: Rob Herring , Mark Rutland , Florian Fainelli , Gregory Fong Cc: Device Tree List , Broadcom Kernel List , ARM Kernel List , Markus Mayer , Linux Kernel Mailing List List-Id: devicetree@vger.kernel.org From: Markus Mayer Provide bindings for the Broadcom STB DDR PHY Front End (DPFE). Signed-off-by: Markus Mayer --- .../devicetree/bindings/soc/bcm/brcm,dpfe-cpu.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/bcm/brcm,dpfe-cpu.txt diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,dpfe-cpu.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,dpfe-cpu.txt new file mode 100644 index 0000000..82d923e --- /dev/null +++ b/Documentation/devicetree/bindings/soc/bcm/brcm,dpfe-cpu.txt @@ -0,0 +1,27 @@ +DDR PHY Front End (DPFE) for Broadcom STB +========================================= + +DPFE and the DPFE firmware provide an interface for the host CPU to +communicate with the DCPU, which resides inside the DDR PHY. + +There are three memory regions for interacting with the DCPU. These are +specified in a single reg property. + +Required properties: + - compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu" + or "brcm,dpfe-cpu" + - reg: must reference three register ranges + - start address and length of the DCPU register space + - start address and length of the DCPU data memory space + - start address and length of the DCPU instruction memory space + - reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem"; + they must be in the same order as the register declarations + +Example: + dpfe_cpu0: dpfe-cpu@f1132000 { + compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu"; + reg = <0xf1132000 0x180 + 0xf1134000 0x1000 + 0xf1138000 0x4000>; + reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem"; + }; -- 2.7.4