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Ip=[192.88.158.2]; Helo=[az84smr01.freescale.net] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM2PR03MB397 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180410_235813_661765_BFDBF1AC X-CRM114-Status: GOOD ( 15.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Ran Wang , Zhao Chenhui , linux-kernel@vger.kernel.org, Li Yang , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Li Yang Signed-off-by: Li Yang Signed-off-by: Zhao Chenhui Signed-off-by: Ran Wang --- Changes in v2: - new file .../devicetree/bindings/powerpc/fsl/pmc.txt | 59 +++++++++++-------- 1 files changed, 34 insertions(+), 25 deletions(-) diff --git a/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt b/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt index 07256b7..f1f749f 100644 --- a/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt +++ b/Documentation/devicetree/bindings/powerpc/fsl/pmc.txt @@ -9,15 +9,20 @@ Properties: "fsl,mpc8548-pmc" should be listed for any chip whose PMC is compatible. "fsl,mpc8536-pmc" should also be listed for any chip - whose PMC is compatible, and implies deep-sleep capability. + whose PMC is compatible, and implies deep-sleep capability and + wake on user defined packet(wakeup on ARP). + + "fsl,p1022-pmc" should be listed for any chip whose PMC is + compatible, and implies lossless Ethernet capability during sleep. "fsl,mpc8641d-pmc" should be listed for any chip whose PMC is compatible; all statements below that apply to "fsl,mpc8548-pmc" also apply to "fsl,mpc8641d-pmc". Compatibility does not include bit assignments in SCCR/PMCDR/DEVDISR; these - bit assignments are indicated via the sleep specifier in each device's - sleep property. + bit assignments are indicated via the clock nodes. Device which has a + controllable clock source should have a "fsl,pmc-handle" property pointing + to the clock node. - reg: For devices compatible with "fsl,mpc8349-pmc", the first resource is the PMC block, and the second resource is the Clock Configuration @@ -33,31 +38,35 @@ Properties: this is a phandle to an "fsl,gtm" node on which timer 4 can be used as a wakeup source from deep sleep. -Sleep specifiers: +Clock nodes: +The clock nodes are to describe the masks in PM controller registers for each +soc clock. +- fsl,pmcdr-mask: For "fsl,mpc8548-pmc"-compatible devices, the mask will be + ORed into PMCDR before suspend if the device using this clock is the wake-up + source and need to be running during low power mode; clear the mask if + otherwise. - fsl,mpc8349-pmc: Sleep specifiers consist of one cell. For each bit - that is set in the cell, the corresponding bit in SCCR will be saved - and cleared on suspend, and restored on resume. This sleep controller - supports disabling and resuming devices at any time. +- fsl,sccr-mask: For "fsl,mpc8349-pmc"-compatible devices, the corresponding + bit specified by the mask in SCCR will be saved and cleared on suspend, and + restored on resume. - fsl,mpc8536-pmc: Sleep specifiers consist of three cells, the third of - which will be ORed into PMCDR upon suspend, and cleared from PMCDR - upon resume. The first two cells are as described for fsl,mpc8578-pmc. - This sleep controller only supports disabling devices during system - sleep, or permanently. - - fsl,mpc8548-pmc: Sleep specifiers consist of one or two cells, the - first of which will be ORed into DEVDISR (and the second into - DEVDISR2, if present -- this cell should be zero or absent if the - hardware does not have DEVDISR2) upon a request for permanent device - disabling. This sleep controller does not support configuring devices - to disable during system sleep (unless supported by another compatible - match), or dynamically. +- fsl,devdisr-mask: Contain one or two cells, depending on the availability of + DEVDISR2 register. For compatible devices, the mask will be ORed into DEVDISR + or DEVDISR2 when the clock should be permenently disabled. Example: - power@b00 { - compatible = "fsl,mpc8313-pmc", "fsl,mpc8349-pmc"; - reg = <0xb00 0x100 0xa00 0x100>; - interrupts = <80 8>; + power@e0070 { + compatible = "fsl,mpc8536-pmc", "fsl,mpc8548-pmc"; + reg = <0xe0070 0x20>; + + etsec1_clk: soc-clk@24 { + fsl,pmcdr-mask = <0x00000080>; + }; + etsec2_clk: soc-clk@25 { + fsl,pmcdr-mask = <0x00000040>; + }; + etsec3_clk: soc-clk@26 { + fsl,pmcdr-mask = <0x00000020>; + }; };