Gregory CLEMENT | 96ae0b5 | 2013-09-25 13:24:18 +0200 | [diff] [blame] | 1 | * Gated Clock bindings for Marvell EBU SoCs |
Sebastian Hesselbarth | f97d0d7 | 2012-11-17 15:22:26 +0100 | [diff] [blame] | 2 | |
Thomas Petazzoni | 9baf968 | 2015-03-03 15:41:05 +0100 | [diff] [blame^] | 3 | Marvell Armada 370/375/380/385/39x/XP, Dove and Kirkwood allow some |
Thomas Petazzoni | e9646fe | 2014-02-10 18:32:49 +0100 | [diff] [blame] | 4 | peripheral clocks to be gated to save some power. The clock consumer |
| 5 | should specify the desired clock by having the clock ID in its |
| 6 | "clocks" phandle cell. The clock ID is directly mapped to the |
| 7 | corresponding clock gating control bit in HW to ease manual clock |
Gregory CLEMENT | 96ae0b5 | 2013-09-25 13:24:18 +0200 | [diff] [blame] | 8 | lookup in datasheet. |
Sebastian Hesselbarth | f97d0d7 | 2012-11-17 15:22:26 +0100 | [diff] [blame] | 9 | |
Gregory CLEMENT | c4c34d6 | 2012-11-17 15:22:29 +0100 | [diff] [blame] | 10 | The following is a list of provided IDs for Armada 370: |
| 11 | ID Clock Peripheral |
| 12 | ----------------------------------- |
| 13 | 0 Audio AC97 Cntrl |
| 14 | 1 pex0_en PCIe 0 Clock out |
| 15 | 2 pex1_en PCIe 1 Clock out |
| 16 | 3 ge1 Gigabit Ethernet 1 |
| 17 | 4 ge0 Gigabit Ethernet 0 |
| 18 | 5 pex0 PCIe Cntrl 0 |
| 19 | 9 pex1 PCIe Cntrl 1 |
| 20 | 15 sata0 SATA Host 0 |
| 21 | 17 sdio SDHCI Host |
| 22 | 25 tdm Time Division Mplx |
| 23 | 28 ddr DDR Cntrl |
| 24 | 30 sata1 SATA Host 0 |
| 25 | |
Gregory CLEMENT | bac18c7 | 2014-02-10 18:32:46 +0100 | [diff] [blame] | 26 | The following is a list of provided IDs for Armada 375: |
| 27 | ID Clock Peripheral |
| 28 | ----------------------------------- |
| 29 | 2 mu Management Unit |
| 30 | 3 pp Packet Processor |
| 31 | 4 ptp PTP |
| 32 | 5 pex0 PCIe 0 Clock out |
| 33 | 6 pex1 PCIe 1 Clock out |
| 34 | 8 audio Audio Cntrl |
| 35 | 11 nd_clk Nand Flash Cntrl |
| 36 | 14 sata0_link SATA 0 Link |
| 37 | 15 sata0_core SATA 0 Core |
| 38 | 16 usb3 USB3 Host |
| 39 | 17 sdio SDHCI Host |
| 40 | 18 usb USB Host |
| 41 | 19 gop Gigabit Ethernet MAC |
| 42 | 20 sata1_link SATA 1 Link |
| 43 | 21 sata1_core SATA 1 Core |
| 44 | 22 xor0 XOR DMA 0 |
| 45 | 23 xor1 XOR DMA 0 |
| 46 | 24 copro Coprocessor |
| 47 | 25 tdm Time Division Mplx |
| 48 | 28 crypto0_enc Cryptographic Unit Port 0 Encryption |
| 49 | 29 crypto0_core Cryptographic Unit Port 0 Core |
| 50 | 30 crypto1_enc Cryptographic Unit Port 1 Encryption |
| 51 | 31 crypto1_core Cryptographic Unit Port 1 Core |
| 52 | |
Thomas Petazzoni | e9646fe | 2014-02-10 18:32:49 +0100 | [diff] [blame] | 53 | The following is a list of provided IDs for Armada 380/385: |
| 54 | ID Clock Peripheral |
| 55 | ----------------------------------- |
| 56 | 0 audio Audio |
| 57 | 2 ge2 Gigabit Ethernet 2 |
| 58 | 3 ge1 Gigabit Ethernet 1 |
| 59 | 4 ge0 Gigabit Ethernet 0 |
| 60 | 5 pex1 PCIe 1 |
| 61 | 6 pex2 PCIe 2 |
| 62 | 7 pex3 PCIe 3 |
| 63 | 8 pex0 PCIe 0 |
| 64 | 9 usb3h0 USB3 Host 0 |
| 65 | 10 usb3h1 USB3 Host 1 |
| 66 | 11 usb3d USB3 Device |
| 67 | 13 bm Buffer Management |
| 68 | 14 crypto0z Cryptographic 0 Z |
| 69 | 15 sata0 SATA 0 |
| 70 | 16 crypto1z Cryptographic 1 Z |
| 71 | 17 sdio SDIO |
| 72 | 18 usb2 USB 2 |
| 73 | 21 crypto1 Cryptographic 1 |
| 74 | 22 xor0 XOR 0 |
| 75 | 23 crypto0 Cryptographic 0 |
| 76 | 25 tdm Time Division Multiplexing |
| 77 | 28 xor1 XOR 1 |
| 78 | 30 sata1 SATA 1 |
Gregory CLEMENT | bac18c7 | 2014-02-10 18:32:46 +0100 | [diff] [blame] | 79 | |
Thomas Petazzoni | 9baf968 | 2015-03-03 15:41:05 +0100 | [diff] [blame^] | 80 | The following is a list of provided IDs for Armada 39x: |
| 81 | ID Clock Peripheral |
| 82 | ----------------------------------- |
| 83 | 5 pex1 PCIe 1 |
| 84 | 6 pex2 PCIe 2 |
| 85 | 7 pex3 PCIe 3 |
| 86 | 8 pex0 PCIe 0 |
| 87 | 9 usb3h0 USB3 Host 0 |
| 88 | 17 sdio SDIO |
| 89 | 22 xor0 XOR 0 |
| 90 | 28 xor1 XOR 1 |
| 91 | |
Gregory CLEMENT | c4c34d6 | 2012-11-17 15:22:29 +0100 | [diff] [blame] | 92 | The following is a list of provided IDs for Armada XP: |
| 93 | ID Clock Peripheral |
| 94 | ----------------------------------- |
| 95 | 0 audio Audio Cntrl |
| 96 | 1 ge3 Gigabit Ethernet 3 |
| 97 | 2 ge2 Gigabit Ethernet 2 |
| 98 | 3 ge1 Gigabit Ethernet 1 |
| 99 | 4 ge0 Gigabit Ethernet 0 |
| 100 | 5 pex0 PCIe Cntrl 0 |
| 101 | 6 pex1 PCIe Cntrl 1 |
| 102 | 7 pex2 PCIe Cntrl 2 |
| 103 | 8 pex3 PCIe Cntrl 3 |
| 104 | 13 bp |
| 105 | 14 sata0lnk |
| 106 | 15 sata0 SATA Host 0 |
| 107 | 16 lcd LCD Cntrl |
| 108 | 17 sdio SDHCI Host |
| 109 | 18 usb0 USB Host 0 |
| 110 | 19 usb1 USB Host 1 |
| 111 | 20 usb2 USB Host 2 |
| 112 | 22 xor0 XOR DMA 0 |
| 113 | 23 crypto CESA engine |
| 114 | 25 tdm Time Division Mplx |
| 115 | 28 xor1 XOR DMA 1 |
| 116 | 29 sata1lnk |
| 117 | 30 sata1 SATA Host 0 |
| 118 | |
Sebastian Hesselbarth | f97d0d7 | 2012-11-17 15:22:26 +0100 | [diff] [blame] | 119 | The following is a list of provided IDs for Dove: |
| 120 | ID Clock Peripheral |
| 121 | ----------------------------------- |
| 122 | 0 usb0 USB Host 0 |
| 123 | 1 usb1 USB Host 1 |
| 124 | 2 ge Gigabit Ethernet |
| 125 | 3 sata SATA Host |
| 126 | 4 pex0 PCIe Cntrl 0 |
| 127 | 5 pex1 PCIe Cntrl 1 |
| 128 | 8 sdio0 SDHCI Host 0 |
| 129 | 9 sdio1 SDHCI Host 1 |
| 130 | 10 nand NAND Cntrl |
| 131 | 11 camera Camera Cntrl |
| 132 | 12 i2s0 I2S Cntrl 0 |
| 133 | 13 i2s1 I2S Cntrl 1 |
| 134 | 15 crypto CESA engine |
| 135 | 21 ac97 AC97 Cntrl |
| 136 | 22 pdma Peripheral DMA |
| 137 | 23 xor0 XOR DMA 0 |
| 138 | 24 xor1 XOR DMA 1 |
| 139 | 30 gephy Gigabit Ethernel PHY |
| 140 | Note: gephy(30) is implemented as a parent clock of ge(2) |
| 141 | |
| 142 | The following is a list of provided IDs for Kirkwood: |
| 143 | ID Clock Peripheral |
| 144 | ----------------------------------- |
| 145 | 0 ge0 Gigabit Ethernet 0 |
| 146 | 2 pex0 PCIe Cntrl 0 |
| 147 | 3 usb0 USB Host 0 |
| 148 | 4 sdio SDIO Cntrl |
| 149 | 5 tsu Transp. Stream Unit |
| 150 | 6 dunit SDRAM Cntrl |
| 151 | 7 runit Runit |
| 152 | 8 xor0 XOR DMA 0 |
| 153 | 9 audio I2S Cntrl 0 |
| 154 | 14 sata0 SATA Host 0 |
| 155 | 15 sata1 SATA Host 1 |
| 156 | 16 xor1 XOR DMA 1 |
| 157 | 17 crypto CESA engine |
| 158 | 18 pex1 PCIe Cntrl 1 |
Jason Cooper | 7a87c8a | 2013-01-26 20:50:16 +0000 | [diff] [blame] | 159 | 19 ge1 Gigabit Ethernet 1 |
Sebastian Hesselbarth | f97d0d7 | 2012-11-17 15:22:26 +0100 | [diff] [blame] | 160 | 20 tdm Time Division Mplx |
| 161 | |
| 162 | Required properties: |
| 163 | - compatible : shall be one of the following: |
Gregory CLEMENT | 96ae0b5 | 2013-09-25 13:24:18 +0200 | [diff] [blame] | 164 | "marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating |
Gregory CLEMENT | bac18c7 | 2014-02-10 18:32:46 +0100 | [diff] [blame] | 165 | "marvell,armada-375-gating-clock" - for Armada 375 SoC clock gating |
Thomas Petazzoni | e9646fe | 2014-02-10 18:32:49 +0100 | [diff] [blame] | 166 | "marvell,armada-380-gating-clock" - for Armada 380/385 SoC clock gating |
Thomas Petazzoni | 9baf968 | 2015-03-03 15:41:05 +0100 | [diff] [blame^] | 167 | "marvell,armada-390-gating-clock" - for Armada 39x SoC clock gating |
Gregory CLEMENT | 96ae0b5 | 2013-09-25 13:24:18 +0200 | [diff] [blame] | 168 | "marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating |
Sebastian Hesselbarth | f97d0d7 | 2012-11-17 15:22:26 +0100 | [diff] [blame] | 169 | "marvell,dove-gating-clock" - for Dove SoC clock gating |
| 170 | "marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating |
| 171 | - reg : shall be the register address of the Clock Gating Control register |
| 172 | - #clock-cells : from common clock binding; shall be set to 1 |
| 173 | |
| 174 | Optional properties: |
| 175 | - clocks : default parent clock phandle (e.g. tclk) |
| 176 | |
| 177 | Example: |
| 178 | |
| 179 | gate_clk: clock-gating-control@d0038 { |
| 180 | compatible = "marvell,dove-gating-clock"; |
| 181 | reg = <0xd0038 0x4>; |
| 182 | /* default parent clock is tclk */ |
| 183 | clocks = <&core_clk 0>; |
| 184 | #clock-cells = <1>; |
| 185 | }; |
| 186 | |
| 187 | sdio0: sdio@92000 { |
| 188 | compatible = "marvell,dove-sdhci"; |
| 189 | /* get clk gate bit 8 (sdio0) */ |
| 190 | clocks = <&gate_clk 8>; |
| 191 | }; |