| STMicroelectronics STM32 / MCU DWMAC glue layer controller |
| |
| This file documents platform glue layer for stmmac. |
| Please see stmmac.txt for the other unchanged properties. |
| |
| The device node has following properties. |
| |
| Required properties: |
| - compatible: For MCU family should be "st,stm32-dwmac" to select glue, and |
| "snps,dwmac-3.50a" to select IP version. |
| For MPU family should be "st,stm32mp1-dwmac" to select |
| glue, and "snps,dwmac-4.20a" to select IP version. |
| - clocks: Must contain a phandle for each entry in clock-names. |
| - clock-names: Should be "stmmaceth" for the host clock. |
| Should be "mac-clk-tx" for the MAC TX clock. |
| Should be "mac-clk-rx" for the MAC RX clock. |
| For MPU family need to add also "ethstp" for power mode clock and, |
| "syscfg-clk" for SYSCFG clock. |
| - interrupt-names: Should contain a list of interrupt names corresponding to |
| the interrupts in the interrupts property, if available. |
| Should be "macirq" for the main MAC IRQ |
| Should be "eth_wake_irq" for the IT which wake up system |
| - st,syscon : Should be phandle/offset pair. The phandle to the syscon node which |
| encompases the glue register, and the offset of the control register. |
| |
| Optional properties: |
| - clock-names: For MPU family "mac-clk-ck" for PHY without quartz |
| - st,int-phyclk (boolean) : valid only where PHY do not have quartz and need to be clock |
| by RCC |
| |
| Example: |
| |
| ethernet@40028000 { |
| compatible = "st,stm32-dwmac", "snps,dwmac-3.50a"; |
| reg = <0x40028000 0x8000>; |
| reg-names = "stmmaceth"; |
| interrupts = <0 61 0>, <0 62 0>; |
| interrupt-names = "macirq", "eth_wake_irq"; |
| clock-names = "stmmaceth", "mac-clk-tx", "mac-clk-rx"; |
| clocks = <&rcc 0 25>, <&rcc 0 26>, <&rcc 0 27>; |
| st,syscon = <&syscfg 0x4>; |
| snps,pbl = <8>; |
| snps,mixed-burst; |
| dma-ranges; |
| }; |
