1* Gated Clock bindings for Marvell EBU SoCs 2 3Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some 4peripheral clocks to be gated to save some power. The clock consumer 5should specify the desired clock by having the clock ID in its 6"clocks" phandle cell. The clock ID is directly mapped to the 7corresponding clock gating control bit in HW to ease manual clock 8lookup in datasheet. 9 10The following is a list of provided IDs for Armada 370: 11ID Clock Peripheral 12----------------------------------- 130 Audio AC97 Cntrl 141 pex0_en PCIe 0 Clock out 152 pex1_en PCIe 1 Clock out 163 ge1 Gigabit Ethernet 1 174 ge0 Gigabit Ethernet 0 185 pex0 PCIe Cntrl 0 199 pex1 PCIe Cntrl 1 2015 sata0 SATA Host 0 2117 sdio SDHCI Host 2223 crypto CESA (crypto engine) 2325 tdm Time Division Mplx 2428 ddr DDR Cntrl 2530 sata1 SATA Host 0 26 27The following is a list of provided IDs for Armada 375: 28ID Clock Peripheral 29----------------------------------- 302 mu Management Unit 313 pp Packet Processor 324 ptp PTP 335 pex0 PCIe 0 Clock out 346 pex1 PCIe 1 Clock out 358 audio Audio Cntrl 3611 nd_clk Nand Flash Cntrl 3714 sata0_link SATA 0 Link 3815 sata0_core SATA 0 Core 3916 usb3 USB3 Host 4017 sdio SDHCI Host 4118 usb USB Host 4219 gop Gigabit Ethernet MAC 4320 sata1_link SATA 1 Link 4421 sata1_core SATA 1 Core 4522 xor0 XOR DMA 0 4623 xor1 XOR DMA 0 4724 copro Coprocessor 4825 tdm Time Division Mplx 4928 crypto0_enc Cryptographic Unit Port 0 Encryption 5029 crypto0_core Cryptographic Unit Port 0 Core 5130 crypto1_enc Cryptographic Unit Port 1 Encryption 5231 crypto1_core Cryptographic Unit Port 1 Core 53 54The following is a list of provided IDs for Armada 380/385: 55ID Clock Peripheral 56----------------------------------- 570 audio Audio 582 ge2 Gigabit Ethernet 2 593 ge1 Gigabit Ethernet 1 604 ge0 Gigabit Ethernet 0 615 pex1 PCIe 1 626 pex2 PCIe 2 637 pex3 PCIe 3 648 pex0 PCIe 0 659 usb3h0 USB3 Host 0 6610 usb3h1 USB3 Host 1 6711 usb3d USB3 Device 6813 bm Buffer Management 6914 crypto0z Cryptographic 0 Z 7015 sata0 SATA 0 7116 crypto1z Cryptographic 1 Z 7217 sdio SDIO 7318 usb2 USB 2 7421 crypto1 Cryptographic 1 7522 xor0 XOR 0 7623 crypto0 Cryptographic 0 7725 tdm Time Division Multiplexing 7828 xor1 XOR 1 7930 sata1 SATA 1 80 81The following is a list of provided IDs for Armada 39x: 82ID Clock Peripheral 83----------------------------------- 845 pex1 PCIe 1 856 pex2 PCIe 2 867 pex3 PCIe 3 878 pex0 PCIe 0 889 usb3h0 USB3 Host 0 8910 usb3h1 USB3 Host 1 9015 sata0 SATA 0 9117 sdio SDIO 9222 xor0 XOR 0 9328 xor1 XOR 1 94 95The following is a list of provided IDs for Armada XP: 96ID Clock Peripheral 97----------------------------------- 980 audio Audio Cntrl 991 ge3 Gigabit Ethernet 3 1002 ge2 Gigabit Ethernet 2 1013 ge1 Gigabit Ethernet 1 1024 ge0 Gigabit Ethernet 0 1035 pex0 PCIe Cntrl 0 1046 pex1 PCIe Cntrl 1 1057 pex2 PCIe Cntrl 2 1068 pex3 PCIe Cntrl 3 10713 bp 10814 sata0lnk 10915 sata0 SATA Host 0 11016 lcd LCD Cntrl 11117 sdio SDHCI Host 11218 usb0 USB Host 0 11319 usb1 USB Host 1 11420 usb2 USB Host 2 11522 xor0 XOR DMA 0 11623 crypto CESA engine 11725 tdm Time Division Mplx 11828 xor1 XOR DMA 1 11929 sata1lnk 12030 sata1 SATA Host 1 121 122The following is a list of provided IDs for Dove: 123ID Clock Peripheral 124----------------------------------- 1250 usb0 USB Host 0 1261 usb1 USB Host 1 1272 ge Gigabit Ethernet 1283 sata SATA Host 1294 pex0 PCIe Cntrl 0 1305 pex1 PCIe Cntrl 1 1318 sdio0 SDHCI Host 0 1329 sdio1 SDHCI Host 1 13310 nand NAND Cntrl 13411 camera Camera Cntrl 13512 i2s0 I2S Cntrl 0 13613 i2s1 I2S Cntrl 1 13715 crypto CESA engine 13821 ac97 AC97 Cntrl 13922 pdma Peripheral DMA 14023 xor0 XOR DMA 0 14124 xor1 XOR DMA 1 14230 gephy Gigabit Ethernel PHY 143Note: gephy(30) is implemented as a parent clock of ge(2) 144 145The following is a list of provided IDs for Kirkwood: 146ID Clock Peripheral 147----------------------------------- 1480 ge0 Gigabit Ethernet 0 1492 pex0 PCIe Cntrl 0 1503 usb0 USB Host 0 1514 sdio SDIO Cntrl 1525 tsu Transp. Stream Unit 1536 dunit SDRAM Cntrl 1547 runit Runit 1558 xor0 XOR DMA 0 1569 audio I2S Cntrl 0 15714 sata0 SATA Host 0 15815 sata1 SATA Host 1 15916 xor1 XOR DMA 1 16017 crypto CESA engine 16118 pex1 PCIe Cntrl 1 16219 ge1 Gigabit Ethernet 1 16320 tdm Time Division Mplx 164 165Required properties: 166- compatible : shall be one of the following: 167 "marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating 168 "marvell,armada-375-gating-clock" - for Armada 375 SoC clock gating 169 "marvell,armada-380-gating-clock" - for Armada 380/385 SoC clock gating 170 "marvell,armada-390-gating-clock" - for Armada 39x SoC clock gating 171 "marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating 172 "marvell,dove-gating-clock" - for Dove SoC clock gating 173 "marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating 174- reg : shall be the register address of the Clock Gating Control register 175- #clock-cells : from common clock binding; shall be set to 1 176 177Optional properties: 178- clocks : default parent clock phandle (e.g. tclk) 179 180Example: 181 182gate_clk: clock-gating-control@d0038 { 183 compatible = "marvell,dove-gating-clock"; 184 reg = <0xd0038 0x4>; 185 /* default parent clock is tclk */ 186 clocks = <&core_clk 0>; 187 #clock-cells = <1>; 188}; 189 190sdio0: sdio@92000 { 191 compatible = "marvell,dove-sdhci"; 192 /* get clk gate bit 8 (sdio0) */ 193 clocks = <&gate_clk 8>; 194}; 195