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BLUPR03MB294; 5:V11UZ+Bb1aH79kQ0knzxPosZbrkUNxbvb6RgA+9g9Dv2sJxeGUMXeMZs82cMbTPt/8gI9R/uDmepWtzN2EPq87BsUOIIuXnw3AmMXATGdcApQpGfwWu8yY4CLn6zUXxAUMxIBgv6aPSyNB24XWQbpQ==; 24:VjdBkRQK3EGTJPBi9+SunSrZxtJdi5v27h+56rWo8/7IHpQwBaKNTXISY2vBzuCgUzPxs2aifc/tsFtsrQVSxdPiSfHc/33axd6za6wkFOg=; 20:od7B1Mlu5Hp38IWqQF0itWlXW8I0k4ZBFhmXPy0uFKH8GvChdnRrf6qSlR0kknSUU1gNH+sSqrVWnyIaunl7rA== X-OriginatorOrg: freescale.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Sep 2015 09:01:40.0446 (UTC) X-MS-Exchange-CrossTenant-Id: 710a03f5-10f6-4d38-9ff4-a80b81da590d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=710a03f5-10f6-4d38-9ff4-a80b81da590d; Ip=[192.88.158.2]; Helo=[az84smr01.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR03MB294 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, Wang Dongsheng , Tang Yuantian , robh+dt@kernel.org, jason.jin@freescale.com, linuxppc-dev@lists.ozlabs.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 --- *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..ea24d76 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/fsl/rcpm.txt @@ -0,0 +1,60 @@ +* 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. + - 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>; + }; + +* 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 3 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 last cell is for IPPDEXPCR1. + Note: If the platform has no IPPDEXPCR1 register, put a zero here. + +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"; + };