| STMicroelectronics SoC DWMAC glue layer controller | |
| The device node has following properties. | |
| Required properties: | |
| - compatible : Can be "st,stih415-dwmac", "st,stih416-dwmac" or | |
| "st,stid127-dwmac". | |
| - reg : Offset of the glue configuration register map in system | |
| configuration regmap pointed by st,syscon property and size. | |
| - reg-names : Should be "sti-ethconf". | |
| - st,syscon : Should be phandle to system configuration node which | |
| encompases this glue registers. | |
| - st,tx-retime-src: On STi Parts for Giga bit speeds, 125Mhz clocks can be | |
| wired up in from different sources. One via TXCLK pin and other via CLK_125 | |
| pin. This wiring is totally board dependent. However the retiming glue | |
| logic should be configured accordingly. Possible values for this property | |
| "txclk" - if 125Mhz clock is wired up via txclk line. | |
| "clk_125" - if 125Mhz clock is wired up via clk_125 line. | |
| This property is only valid for Giga bit setup( GMII, RGMII), and it is | |
| un-used for non-giga bit (MII and RMII) setups. Also note that internal | |
| clockgen can not generate stable 125Mhz clock. | |
| - st,ext-phyclk: This boolean property indicates who is generating the clock | |
| for tx and rx. This property is only valid for RMII case where the clock can | |
| be generated from the MAC or PHY. | |
| - clock-names: should be "sti-ethclk". | |
| - clocks: Should point to ethernet clockgen which can generate phyclk. | |
| Example: | |
| ethernet0: dwmac@fe810000 { | |
| device_type = "network"; | |
| compatible = "st,stih416-dwmac", "snps,dwmac", "snps,dwmac-3.710"; | |
| reg = <0xfe810000 0x8000>, <0x8bc 0x4>; | |
| reg-names = "stmmaceth", "sti-ethconf"; | |
| interrupts = <0 133 0>, <0 134 0>, <0 135 0>; | |
| interrupt-names = "macirq", "eth_wake_irq", "eth_lpi"; | |
| phy-mode = "mii"; | |
| st,syscon = <&syscfg_rear>; | |
| snps,pbl = <32>; | |
| snps,mixed-burst; | |
| resets = <&softreset STIH416_ETH0_SOFTRESET>; | |
| reset-names = "stmmaceth"; | |
| pinctrl-0 = <&pinctrl_mii0>; | |
| pinctrl-names = "default"; | |
| clocks = <&CLK_S_GMAC0_PHY>; | |
| clock-names = "stmmaceth"; | |
| }; |