Tool/software: Linux
Hello.
I'm trying to setup another automotive gigabit PHY on the cusom board.
Target board is based on DRA7X_EVM(VAYU 703761-1031), there is no much differences.
EVM board have 2 PHY for CPSW.
PHY part number is DP83865DVH(drivers/net/phy/national.c).
But actually Generic PHY driver(drivers/net/phy/phy_device.c) is used.
The difference b/w EVM and target board is only 2nd PHY which is replaced with Marvell automotive PHY.
(Exact same pad is connected. PHY mode is rgmii. )
I have changed the driver for marvel PHY.
But how can I make davinci-mdio use the marvell automotive PHY driver on device tree?
Is there any example or reference?
dra7.dtsi
...
mac: ethernet@48484000 {
compatible = "ti,dra7-cpsw","ti,cpsw";
ti,hwmods = "gmac";
clocks = <&gmac_main_clk>, <&gmac_rft_clk_mux>;
clock-names = "fck", "cpts";
cpdma_channels = <8>;
ale_entries = <1024>;
bd_ram_size = <0x2000>;
mac_control = <0x20>;
slaves = <2>;
active_slave = <0>;
cpts_clock_mult = <0x784CFE14>;
cpts_clock_shift = <29>;
reg = <0x48484000 0x1000
0x48485200 0x2E00>;
#address-cells = <1>;
#size-cells = <1>;
/*
* Do not allow gating of cpsw clock as workaround
* for errata i877. Keeping internal clock disabled
* causes the device switching characteristics
* to degrade over time and eventually fail to meet
* the data manual delay time/skew specs.
*/
ti,no-idle;
/*
* rx_thresh_pend
* rx_pend
* tx_pend
* misc_pend
*/
interrupts = <GIC_SPI 334 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 335 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 336 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 337 IRQ_TYPE_LEVEL_HIGH>;
ranges;
syscon = <&scm_conf>;
status = "disabled";
davinci_mdio: mdio@48485000 {
compatible = "ti,cpsw-mdio";
#address-cells = <1>;
#size-cells = <0>;
ti,hwmods = "davinci_mdio";
bus_freq = <1000000>;
reg = <0x48485000 0x100>;
};
cpsw_emac0: slave@48480200 {
/* Filled in by U-Boot */
mac-address = [ 00 00 00 00 00 00 ];
};
cpsw_emac1: slave@48480300 {
/* Filled in by U-Boot */
mac-address = [ 00 00 00 00 00 00 ];
};
phy_sel: cpsw-phy-sel@4a002554 {
compatible = "ti,dra7xx-cpsw-phy-sel";
reg= <0x4a002554 0x4>;
reg-names = "gmii-sel";
};
};
...
in dts file
...
&mac {
status = "okay";
dual_emac;
};
&cpsw_emac0 {
phy_id = <&davinci_mdio>, <2>;
phy-mode = "rgmii";
dual_emac_res_vlan = <1>;
};
&cpsw_emac1 {
phy_id = <&davinci_mdio>, <3>;
phy-mode = "rgmii";
dual_emac_res_vlan = <2>;
};
...
Best Regards,
JeHun Kim
