ARM: dts: stm32: Add ethernet dwmac on stm32mp1

Add Ethernet support (Synopsys MAC IP 4.20a) on stm32mp1 SOC.
Enable feature supported by the stmmac driver, such as TSO.

Signed-off-by: Christophe Roullier <christophe.roullier@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 37d9fcb..e42c1a3 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -978,6 +978,36 @@
                        status = "disabled";
                };
 
+               stmmac_axi_config_0: stmmac-axi-config {
+                       snps,wr_osr_lmt = <0x7>;
+                       snps,rd_osr_lmt = <0x7>;
+                       snps,blen = <0 0 0 0 16 8 4>;
+               };
+
+               ethernet0: ethernet@5800a000 {
+                       compatible = "st,stm32mp1-dwmac", "snps,dwmac-4.20a";
+                       reg = <0x5800a000 0x2000>;
+                       reg-names = "stmmaceth";
+                       interrupts-extended = <&intc GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "macirq";
+                       clock-names = "stmmaceth",
+                                     "mac-clk-tx",
+                                     "mac-clk-rx",
+                                     "ethstp",
+                                     "syscfg-clk";
+                       clocks = <&rcc ETHMAC>,
+                                <&rcc ETHTX>,
+                                <&rcc ETHRX>,
+                                <&rcc ETHSTP>,
+                                <&rcc SYSCFG>;
+                       st,syscon = <&syscfg 0x4>;
+                       snps,mixed-burst;
+                       snps,pbl = <2>;
+                       snps,axi-config = <&stmmac_axi_config_0>;
+                       snps,tso;
+                       status = "disabled";
+               };
+
                usbh_ohci: usbh-ohci@5800c000 {
                        compatible = "generic-ohci";
                        reg = <0x5800c000 0x1000>;