TDA4VM: vision_apps: disable ethfw on MCU2_1

Hi Zhang,

Do you mean running EthFw from Linux? You can easily remove EthFw from mcu2-1, but including it on Linux might require additional changes in Linux dtb file. 

Regards,

Brijesh

Hi,Brijesh

     Thanks for your support. We using ethfw in vision_apps, so I  think ethfw running on MCU2_0 and MCU2_1. We have some questions:

     1.In dts of linux, we can found two macs and a port, as follow:

	cpsw9g_virt_mac: main_r5fss_cpsw9g_virt_mac0 {
		compatible = "ti,j721e-cpsw-virt-mac";
		dma-coherent;
		ti,psil-base = <0x4a00>;
		ti,remote-name = "mpu_1_0_ethswitch-device-0";

		dmas = <&main_udmap 0xca00>,
		       <&main_udmap 0xca01>,
		       <&main_udmap 0xca02>,
		       <&main_udmap 0xca03>,
		       <&main_udmap 0xca04>,
		       <&main_udmap 0xca05>,
		       <&main_udmap 0xca06>,
		       <&main_udmap 0xca07>,
		       <&main_udmap 0x4a00>;
		dma-names = "tx0", "tx1", "tx2", "tx3",
			    "tx4", "tx5", "tx6", "tx7",
			    "rx";

		virt_emac_port {
			ti,label = "virt-port";
			/* local-mac-address = [0 0 0 0 0 0]; */
		};
	};

	cpsw9g_virt_maconly: main-r5fss-cpsw9g-virt-mac1 {
		compatible = "ti,j721e-cpsw-virt-mac";
		dma-coherent;
		ti,psil-base = <0x4a00>;
		ti,remote-name = "mpu_1_0_ethmac-device-1";

		dmas = <&main_udmap 0xca00>,
		       <&main_udmap 0xca01>,
		       <&main_udmap 0xca02>,
		       <&main_udmap 0xca03>,
		       <&main_udmap 0xca04>,
		       <&main_udmap 0xca05>,
		       <&main_udmap 0xca06>,
		       <&main_udmap 0xca07>,
		       <&main_udmap 0x4a00>;
		dma-names = "tx0", "tx1", "tx2", "tx3",
			    "tx4", "tx5", "tx6", "tx7",
			    "rx";

		virt_emac_port {
			ti,label = "virt-port";
			/* local-mac-address = [0 0 0 0 0 0]; */
		};
	};

&cpsw_port1 {
	phy-mode = "rgmii-rxid";
	phy-handle = <&phy0>;
};

     MPU1_0(linux) is only a client of CPSW9G. Why are there two MACs but only one port?

    2. Ethfw server runing on MCU2_0 and Ethfw client running on MCU2_1 in vision_apps.  And MPU1_0(linux) is a client of CPSW9G. Is it right?

Best Regards,

Zhang

Hi Zhang,

For this specific question, i would request Doredla Sudheer Kumar to help you.

Regards,

Brijesh

Hi,

davied zhang said:

We using ethfw in vision_apps, so I  think ethfw running on MCU2_0 and MCU2_1

EthFw is running on MCU2_0.

davied zhang said:

   1.In dts of linux, we can found two macs and a port, as follow:

These device tree configuration for Virtual Switch interface (for switch Ports access) and Virtual MAC interface (MAC Port-1).
EthFw is Server and A72 Linux is client.

davied zhang said:

    2. Ethfw server runing on MCU2_0 and Ethfw client running on MCU2_1 in vision_apps.  And MPU1_0(linux) is a client of CPSW9G. Is it right?

Yes.
Default EthFw configures Port-1, Port-4 as MAC Only Ports and map to A72 client  & MCU2_1 RTOS client.
Along with MAC Only Port, EthFw map Virtual Switch interface for A72 client and MCU2_1 client.


Default A72 Linux will show 3 network interfaces.
1. eth0: CPSW2G (Native Linux Driver)
2. eth1: CPSW9G Virtual Switch interface
3. eth2: CPSW9G Virtual MAC interface (MAC Port-1)


If you disable "cpsw9g_virt_mac" and "cpsw9g_virt_maconly" from device tree files, and build the device tree files and copy to "rootfs/boot/dtb/" as per SDK you are using, it will bringup the eth1, eth2 on A72 Linux (A72 can't communicate to external network via CPSW9G data).

If you want to disable the EthFw, you need to build visionapps by disabling the following from "vision_apps_build_flags.mak" file.
BUILD_ENABLE_ETHFW?=no

Best Regards,
Sudheer

HI,Sudheer

      Thanks for your support. We got it. Now we don't use MAC-ONLY port, so we will disable it. such as:

	
	
	/**cpsw9g_virt_maconly: main-r5fss-cpsw9g-virt-mac6 {
		compatible = "ti,j721e-cpsw-virt-mac";
		dma-coherent;
		ti,psil-base = <0x4a00>;
		ti,remote-name = "mpu_1_0_ethmac-device-6";

		dmas = <&main_udmap 0xca00>,
		       <&main_udmap 0xca01>,
		       <&main_udmap 0xca02>,
		       <&main_udmap 0xca03>,
		       <&main_udmap 0xca04>,
		       <&main_udmap 0xca05>,
		       <&main_udmap 0xca06>,
		       <&main_udmap 0xca07>,
		       <&main_udmap 0x4a00>;
		dma-names = "tx0", "tx1", "tx2", "tx3",
			    "tx4", "tx5", "tx6", "tx7",
			    "rx";

		virt_emac_port {
			ti,label = "virt-port";
		};
	};***/
	
//&cpsw_port1 {
//	phy-mode = "rgmii-rxid";
//	phy-handle = <&phy0>;
//};

    Why does MAC-ONLY PORT use PHY in GESI board? Can we delete this PHY, if we use it on mac-only?

Best Regards,

Zhang