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Thu, 24 Sep 2015 08:35:19 +0000 Received: from titan.ap.freescale.net ([10.192.208.233]) by tx30smr01.am.freescale.net (8.14.3/8.14.0) with ESMTP id t8O8ZEvD022238; Thu, 24 Sep 2015 01:35:14 -0700 From: Dongsheng Wang To: Subject: [PATCH v3 1/2] fsl: Add binding for RCPM Date: Thu, 24 Sep 2015 16:29:13 +0800 Message-ID: <1443083354-37369-1-git-send-email-dongsheng.wang@freescale.com> X-Mailer: git-send-email 2.1.0.27.g96db324 X-EOPAttributedMessage: 0 X-Microsoft-Exchange-Diagnostics: 1; BL2FFO11FD023; 1:Yy8mFPhXpcUoBMFxnFabtuSkRbqkVt6BnMD6GNF3Nio3Ftlg7RCs6cPHGO1Ds6yWz7E4pLkll7JosnjQYKkhOLUCUOltgKrtYPA7wm5JAOHrjQifkGc9NJxL6SFHxydZToaOP7Vn3+JKyrbyprXH1tzB8DjGaE85D0xE6L+c0MHHvN2cZK5O5TUnRhoOiYsNncF+Yd1m9wZpIqe2zFUPkcMz9fGr4hk7/o8lZo4AlJUBALeuFmhOzJwc8Veiq6BvPVUCcoTTtPToGKC0EbjSwV0TrmY9BTMb+7hfA/Tfr5I9lTrQyRJghVzV6xNa0OzSn/XtukHjOoykNMnqoAb6mlaGa0/bN29pf9bKQWbuPHQRxCPDWJXtLr3Aq4QPFxz4g8pQBUT1Ir37xPxC/8yKBg== X-Forefront-Antispam-Report: CIP:192.88.168.50; CTRY:US; IPV:NLI; EFV:NLI; SFV:NSPM; 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BY1PR03MB1484; 5:l6DtuSzmX8V+9AB4O8pk9mHHPDCu7DHDrCAqlUZp/IMchCSIjLftnvP8/TpSHB0IMZMWgFz0JNrq9aIlrxif7bvTKnSRHLL+3douzjBlsmjwqNN1jvuZdtVZK4RERrMh5ONhe8Py6NpU0w05s+6VSg==; 24:ijB9nQ9I2hf53ROdQ7ML2MYf8zM7WNpnSwd5qkK+Ww+nK6ONFxoB0SumjCRSNC4eYVm64Tu+m3dTSPOg0etwNFZYaMq8QiYWMcaxfpz7FEo=; 20:AK463SXchScx8wCSa8Ym5UZkjiV4Hb/rwUeNS5l+NsoJaFQEDbHWx5Ctr4hMbi8Hw5WJe6kL4rfb9LU+GwkR4A== X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Sep 2015 08:35:19.0774 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.168.50]; Helo=[tx30smr01.am.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY1PR03MB1484 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chenhui Zhao , alison.wang@freescale.com, linuxppc-dev@lists.ozlabs.org, Wang Dongsheng , Tang Yuantian , robh+dt@kernel.org, jason.jin@freescale.com, shawnguo@kernel.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Wang Dongsheng RCPM is the Run Control and Power Management module performs all device-level tasks associated with device run control and power management. Add this for freescale powerpc platform and layerscape platform. Signed-off-by: Chenhui Zhao Signed-off-by: Tang Yuantian Signed-off-by: Wang Dongsheng --- *v3* - Add "fsl,#rcpm-wakeup-cells" for rcpm node. The number of cells correspond rcpm-wakeup property. - Modify rcpm-wakeup property description. *v2* - Remove P4080 example. - Modify rcpm-wakeup property description. diff --git a/Documentation/devicetree/bindings/soc/fsl/rcpm.txt b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt new file mode 100644 index 0000000..52110ec --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt @@ -0,0 +1,63 @@ +* Run Control and Power Management +------------------------------------------- +The RCPM performs all device-level tasks associated with device run control +and power management. + +Required properites: + - reg : Offset and length of the register set of RCPM block. + - fsl,#rcpm-wakeup-cells : The number of cells in rcpm-wakeup property. + - compatible : Sould contain a chip-specific RCPM block compatible string + and (if applicable) may contain a chassis-version RCPM compatible + string. Chip-specific strings are of the form "fsl,-rcpm", + such as: + * "fsl,p2041-rcpm" + * "fsl,p3041-rcpm" + * "fsl,p4080-rcpm" + * "fsl,p5020-rcpm" + * "fsl,p5040-rcpm" + * "fsl,t4240-rcpm" + * "fsl,b4420-rcpm" + * "fsl,b4860-rcpm" + + Chassis-version strings are of the form "fsl,qoriq-rcpm-", + such as: + * "fsl,qoriq-rcpm-1.0": for chassis 1.0 rcpm + * "fsl,qoriq-rcpm-2.0": for chassis 2.0 rcpm + * "fsl,qoriq-rcpm-2.1": for chassis 2.1 rcpm + +All references to "1.0" and "2.0" refer to the QorIQ chassis version to +which the chip complies. +Chassis Version Example Chips +--------------- ------------------------------- +1.0 p4080, p5020, p5040, p2041, p3041 +2.0 t4240, b4860, b4420 +2.1 t1040, ls1021 + +Example: +The RCPM node for T4240: + rcpm: global-utilities@e2000 { + compatible = "fsl,t4240-rcpm", "fsl,qoriq-rcpm-2.0"; + reg = <0xe2000 0x1000>; + fsl,#rcpm-wakeup-cells = <2>; + }; + +* Freescale RCPM Wakeup Source Device Tree Bindings +------------------------------------------- +Required rcpm-wakeup property should be added to a device node if the device +can be used as a wakeup source. + + - rcpm-wakeup: The value of the property consists of cells, the number of + cells defined in "fsl,#rcpm-wakeup-cells". The first cell is a pointer + to the rcpm node, the second cell is the bit mask that should be set + in IPPDEXPCR0, and the third cell is for IPPDEXPCR1, and so on. + +Example: + lpuart0: serial@2950000 { + compatible = "fsl,ls1021a-lpuart"; + reg = <0x0 0x2950000 0x0 0x1000>; + interrupts = ; + clocks = <&sysclk>; + clock-names = "ipg"; + rcpm-wakeup = <&rcpm 0x0 0x40000000>; + status = "disabled"; + };