projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f714700 AJ |
1 | Aspeed Pin Controllers |
| 2 | ---------------------- | |
| 3 | ||
| 4 | The Aspeed SoCs vary in functionality inside a generation but have a common mux | |
| 5 | device register layout. | |
| 6 | ||
| 7 | Required properties: | |
| 8 | - compatible : Should be any one of the following: | |
| 9 | "aspeed,ast2400-pinctrl" | |
| 10 | "aspeed,g4-pinctrl" | |
| 11 | "aspeed,ast2500-pinctrl" | |
| 12 | "aspeed,g5-pinctrl" | |
| 13 | ||
| c95b0fec | 14 | The pin controller node should be the child of a syscon node with the required |
| 5f714700 | 15 | property: |
| c95b0fec AJ |
16 | |
| 17 | - compatible : Should be one of the following: | |
| 18 | "aspeed,ast2400-scu", "syscon", "simple-mfd" | |
| 19 | "aspeed,g4-scu", "syscon", "simple-mfd" | |
| 20 | "aspeed,ast2500-scu", "syscon", "simple-mfd" | |
| 21 | "aspeed,g5-scu", "syscon", "simple-mfd" | |
| 5f714700 AJ |
22 | |
| 23 | Refer to the the bindings described in | |
| 24 | Documentation/devicetree/bindings/mfd/syscon.txt | |
| 25 | ||
| 26 | Subnode Format | |
| 27 | -------------- | |
| 28 | ||
| 29 | The required properties of child nodes are (as defined in pinctrl-bindings): | |
| 30 | - function | |
| 31 | - groups | |
| 32 | ||
| 33 | Each function has only one associated pin group. Each group is named by its | |
| 34 | function. The following values for the function and groups properties are | |
| 35 | supported: | |
| 36 | ||
| 37 | aspeed,ast2400-pinctrl, aspeed,g4-pinctrl: | |
| 38 | ||
| 39 | ACPI BMCINT DDCCLK DDCDAT FLACK FLBUSY FLWP GPID0 GPIE0 GPIE2 GPIE4 GPIE6 I2C10 | |
| 40 | I2C11 I2C12 I2C13 I2C3 I2C4 I2C5 I2C6 I2C7 I2C8 I2C9 LPCPD LPCPME LPCSMI MDIO1 | |
| 41 | MDIO2 NCTS1 NCTS3 NCTS4 NDCD1 NDCD3 NDCD4 NDSR1 NDSR3 NDTR1 NDTR3 NRI1 NRI3 | |
| 42 | NRI4 NRTS1 NRTS3 PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 RGMII1 RMII1 ROM16 | |
| 43 | ROM8 ROMCS1 ROMCS2 ROMCS3 ROMCS4 RXD1 RXD3 RXD4 SD1 SGPMI SIOPBI SIOPBO TIMER3 | |
| 44 | TIMER5 TIMER6 TIMER7 TIMER8 TXD1 TXD3 TXD4 UART6 VGAHS VGAVS VPI18 VPI24 VPI30 | |
| 45 | VPO12 VPO24 | |
| 46 | ||
| 47 | aspeed,ast2500-pinctrl, aspeed,g5-pinctrl: | |
| 48 | ||
| 49 | GPID0 GPID2 GPIE0 I2C10 I2C11 I2C12 I2C13 I2C14 I2C3 I2C4 I2C5 I2C6 I2C7 I2C8 | |
| 50 | I2C9 MAC1LINK MDIO1 MDIO2 OSCCLK PEWAKE PWM0 PWM1 PWM2 PWM3 PWM4 PWM5 PWM6 PWM7 | |
| 8eb37aff AJ |
51 | RGMII1 RGMII2 RMII1 RMII2 SD1 SPI1 SPI1DEBUG SPI1PASSTHRU TIMER4 TIMER5 TIMER6 |
| 52 | TIMER7 TIMER8 VGABIOSROM | |
| 53 | ||
| 5f714700 AJ |
54 | |
| 55 | Examples: | |
| 56 | ||
| 57 | syscon: scu@1e6e2000 { | |
| c95b0fec | 58 | compatible = "aspeed,ast2400-scu", "syscon", "simple-mfd"; |
| 5f714700 AJ |
59 | reg = <0x1e6e2000 0x1a8>; |
| 60 | ||
| 61 | pinctrl: pinctrl { | |
| 62 | compatible = "aspeed,g4-pinctrl"; | |
| 63 | ||
| 64 | pinctrl_i2c3_default: i2c3_default { | |
| 65 | function = "I2C3"; | |
| 66 | groups = "I2C3"; | |
| 67 | }; | |
| 68 | }; | |
| 69 | }; | |
| 70 | ||
| 71 | Please refer to pinctrl-bindings.txt in this directory for details of the | |
| 72 | common pinctrl bindings used by client devices. |