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| 1 | +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | +--- |
| 3 | +$id: http://devicetree.org/schemas/clock/marvell-armada-370-gating-clock.yaml# |
| 4 | +$schema: http://devicetree.org/meta-schemas/core.yaml# |
| 5 | + |
| 6 | +title: Marvell EBU SoC gating-clock |
| 7 | + |
| 8 | +maintainers: |
| 9 | + - Andrew Lunn <andrew@lunn.ch> |
| 10 | + - Gregory Clement <gregory.clement@bootlin.com> |
| 11 | + |
| 12 | +description: > |
| 13 | + Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some peripheral |
| 14 | + clocks to be gated to save some power. The clock ID is directly mapped to the |
| 15 | + corresponding clock gating control bit in HW to ease manual clock lookup in |
| 16 | + datasheet. |
| 17 | +
|
| 18 | + The following is a list of provided IDs for Armada 370: |
| 19 | +
|
| 20 | + ID Clock Peripheral |
| 21 | + ----------------------------------- |
| 22 | + 0 Audio AC97 Cntrl |
| 23 | + 1 pex0_en PCIe 0 Clock out |
| 24 | + 2 pex1_en PCIe 1 Clock out |
| 25 | + 3 ge1 Gigabit Ethernet 1 |
| 26 | + 4 ge0 Gigabit Ethernet 0 |
| 27 | + 5 pex0 PCIe Cntrl 0 |
| 28 | + 9 pex1 PCIe Cntrl 1 |
| 29 | + 15 sata0 SATA Host 0 |
| 30 | + 17 sdio SDHCI Host |
| 31 | + 23 crypto CESA (crypto engine) |
| 32 | + 25 tdm Time Division Mplx |
| 33 | + 28 ddr DDR Cntrl |
| 34 | + 30 sata1 SATA Host 0 |
| 35 | +
|
| 36 | + The following is a list of provided IDs for Armada 375: |
| 37 | +
|
| 38 | + ID Clock Peripheral |
| 39 | + ----------------------------------- |
| 40 | + 2 mu Management Unit |
| 41 | + 3 pp Packet Processor |
| 42 | + 4 ptp PTP |
| 43 | + 5 pex0 PCIe 0 Clock out |
| 44 | + 6 pex1 PCIe 1 Clock out |
| 45 | + 8 audio Audio Cntrl |
| 46 | + 11 nd_clk Nand Flash Cntrl |
| 47 | + 14 sata0_link SATA 0 Link |
| 48 | + 15 sata0_core SATA 0 Core |
| 49 | + 16 usb3 USB3 Host |
| 50 | + 17 sdio SDHCI Host |
| 51 | + 18 usb USB Host |
| 52 | + 19 gop Gigabit Ethernet MAC |
| 53 | + 20 sata1_link SATA 1 Link |
| 54 | + 21 sata1_core SATA 1 Core |
| 55 | + 22 xor0 XOR DMA 0 |
| 56 | + 23 xor1 XOR DMA 0 |
| 57 | + 24 copro Coprocessor |
| 58 | + 25 tdm Time Division Mplx |
| 59 | + 28 crypto0_enc Cryptographic Unit Port 0 Encryption |
| 60 | + 29 crypto0_core Cryptographic Unit Port 0 Core |
| 61 | + 30 crypto1_enc Cryptographic Unit Port 1 Encryption |
| 62 | + 31 crypto1_core Cryptographic Unit Port 1 Core |
| 63 | +
|
| 64 | + The following is a list of provided IDs for Armada 380/385: |
| 65 | +
|
| 66 | + ID Clock Peripheral |
| 67 | + ----------------------------------- |
| 68 | + 0 audio Audio |
| 69 | + 2 ge2 Gigabit Ethernet 2 |
| 70 | + 3 ge1 Gigabit Ethernet 1 |
| 71 | + 4 ge0 Gigabit Ethernet 0 |
| 72 | + 5 pex1 PCIe 1 |
| 73 | + 6 pex2 PCIe 2 |
| 74 | + 7 pex3 PCIe 3 |
| 75 | + 8 pex0 PCIe 0 |
| 76 | + 9 usb3h0 USB3 Host 0 |
| 77 | + 10 usb3h1 USB3 Host 1 |
| 78 | + 11 usb3d USB3 Device |
| 79 | + 13 bm Buffer Management |
| 80 | + 14 crypto0z Cryptographic 0 Z |
| 81 | + 15 sata0 SATA 0 |
| 82 | + 16 crypto1z Cryptographic 1 Z |
| 83 | + 17 sdio SDIO |
| 84 | + 18 usb2 USB 2 |
| 85 | + 21 crypto1 Cryptographic 1 |
| 86 | + 22 xor0 XOR 0 |
| 87 | + 23 crypto0 Cryptographic 0 |
| 88 | + 25 tdm Time Division Multiplexing |
| 89 | + 28 xor1 XOR 1 |
| 90 | + 30 sata1 SATA 1 |
| 91 | +
|
| 92 | + The following is a list of provided IDs for Armada 39x: |
| 93 | +
|
| 94 | + ID Clock Peripheral |
| 95 | + ----------------------------------- |
| 96 | + 5 pex1 PCIe 1 |
| 97 | + 6 pex2 PCIe 2 |
| 98 | + 7 pex3 PCIe 3 |
| 99 | + 8 pex0 PCIe 0 |
| 100 | + 9 usb3h0 USB3 Host 0 |
| 101 | + 10 usb3h1 USB3 Host 1 |
| 102 | + 15 sata0 SATA 0 |
| 103 | + 17 sdio SDIO |
| 104 | + 22 xor0 XOR 0 |
| 105 | + 28 xor1 XOR 1 |
| 106 | +
|
| 107 | + The following is a list of provided IDs for Armada XP: |
| 108 | +
|
| 109 | + ID Clock Peripheral |
| 110 | + ----------------------------------- |
| 111 | + 0 audio Audio Cntrl |
| 112 | + 1 ge3 Gigabit Ethernet 3 |
| 113 | + 2 ge2 Gigabit Ethernet 2 |
| 114 | + 3 ge1 Gigabit Ethernet 1 |
| 115 | + 4 ge0 Gigabit Ethernet 0 |
| 116 | + 5 pex0 PCIe Cntrl 0 |
| 117 | + 6 pex1 PCIe Cntrl 1 |
| 118 | + 7 pex2 PCIe Cntrl 2 |
| 119 | + 8 pex3 PCIe Cntrl 3 |
| 120 | + 13 bp |
| 121 | + 14 sata0lnk |
| 122 | + 15 sata0 SATA Host 0 |
| 123 | + 16 lcd LCD Cntrl |
| 124 | + 17 sdio SDHCI Host |
| 125 | + 18 usb0 USB Host 0 |
| 126 | + 19 usb1 USB Host 1 |
| 127 | + 20 usb2 USB Host 2 |
| 128 | + 22 xor0 XOR DMA 0 |
| 129 | + 23 crypto CESA engine |
| 130 | + 25 tdm Time Division Mplx |
| 131 | + 28 xor1 XOR DMA 1 |
| 132 | + 29 sata1lnk |
| 133 | + 30 sata1 SATA Host 1 |
| 134 | +
|
| 135 | + The following is a list of provided IDs for 98dx3236: |
| 136 | +
|
| 137 | + ID Clock Peripheral |
| 138 | + ----------------------------------- |
| 139 | + 3 ge1 Gigabit Ethernet 1 |
| 140 | + 4 ge0 Gigabit Ethernet 0 |
| 141 | + 5 pex0 PCIe Cntrl 0 |
| 142 | + 17 sdio SDHCI Host |
| 143 | + 18 usb0 USB Host 0 |
| 144 | + 22 xor0 XOR DMA 0 |
| 145 | +
|
| 146 | + The following is a list of provided IDs for Dove: |
| 147 | +
|
| 148 | + ID Clock Peripheral |
| 149 | + ----------------------------------- |
| 150 | + 0 usb0 USB Host 0 |
| 151 | + 1 usb1 USB Host 1 |
| 152 | + 2 ge Gigabit Ethernet |
| 153 | + 3 sata SATA Host |
| 154 | + 4 pex0 PCIe Cntrl 0 |
| 155 | + 5 pex1 PCIe Cntrl 1 |
| 156 | + 8 sdio0 SDHCI Host 0 |
| 157 | + 9 sdio1 SDHCI Host 1 |
| 158 | + 10 nand NAND Cntrl |
| 159 | + 11 camera Camera Cntrl |
| 160 | + 12 i2s0 I2S Cntrl 0 |
| 161 | + 13 i2s1 I2S Cntrl 1 |
| 162 | + 15 crypto CESA engine |
| 163 | + 21 ac97 AC97 Cntrl |
| 164 | + 22 pdma Peripheral DMA |
| 165 | + 23 xor0 XOR DMA 0 |
| 166 | + 24 xor1 XOR DMA 1 |
| 167 | + 30 gephy Gigabit Ethernet PHY |
| 168 | + Note: gephy(30) is implemented as a parent clock of ge(2) |
| 169 | +
|
| 170 | + The following is a list of provided IDs for Kirkwood: |
| 171 | +
|
| 172 | + ID Clock Peripheral |
| 173 | + ----------------------------------- |
| 174 | + 0 ge0 Gigabit Ethernet 0 |
| 175 | + 2 pex0 PCIe Cntrl 0 |
| 176 | + 3 usb0 USB Host 0 |
| 177 | + 4 sdio SDIO Cntrl |
| 178 | + 5 tsu Transp. Stream Unit |
| 179 | + 6 dunit SDRAM Cntrl |
| 180 | + 7 runit Runit |
| 181 | + 8 xor0 XOR DMA 0 |
| 182 | + 9 audio I2S Cntrl 0 |
| 183 | + 14 sata0 SATA Host 0 |
| 184 | + 15 sata1 SATA Host 1 |
| 185 | + 16 xor1 XOR DMA 1 |
| 186 | + 17 crypto CESA engine |
| 187 | + 18 pex1 PCIe Cntrl 1 |
| 188 | + 19 ge1 Gigabit Ethernet 1 |
| 189 | + 20 tdm Time Division Mplx |
| 190 | +
|
| 191 | +properties: |
| 192 | + compatible: |
| 193 | + enum: |
| 194 | + - marvell,armada-370-gating-clock |
| 195 | + - marvell,armada-375-gating-clock |
| 196 | + - marvell,armada-380-gating-clock |
| 197 | + - marvell,armada-390-gating-clock |
| 198 | + - marvell,armada-xp-gating-clock |
| 199 | + - marvell,mv98dx3236-gating-clock |
| 200 | + - marvell,dove-gating-clock |
| 201 | + - marvell,kirkwood-gating-clock |
| 202 | + |
| 203 | + reg: |
| 204 | + maxItems: 1 |
| 205 | + |
| 206 | + clocks: |
| 207 | + maxItems: 1 |
| 208 | + |
| 209 | + '#clock-cells': |
| 210 | + const: 1 |
| 211 | + |
| 212 | +required: |
| 213 | + - compatible |
| 214 | + - reg |
| 215 | + - '#clock-cells' |
| 216 | + |
| 217 | +additionalProperties: false |
| 218 | + |
| 219 | +examples: |
| 220 | + - | |
| 221 | + clock-controller@d0038 { |
| 222 | + compatible = "marvell,dove-gating-clock"; |
| 223 | + reg = <0xd0038 0x4>; |
| 224 | + /* default parent clock is tclk */ |
| 225 | + clocks = <&core_clk 0>; |
| 226 | + #clock-cells = <1>; |
| 227 | + }; |
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