| 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"; |
| }; |
