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Commit a95d79c6 authored by Suraj Jaiswal's avatar Suraj Jaiswal Committed by Gerrit - the friendly Code Review server
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data-kernel: EMAC: Etherent phy detection optimization. 



Read phy address from dtis to avoid dynamic phy
detection which will reduce ethernet initialization
time.

Change-Id: I95e4386e98bebf9a71aa186b3ebd20cea758c7db
Signed-off-by: default avatarSunil Paidimarri <hisunil@codeaurora.org>
parent bdc07671

drivers/emac-dwc-eqos/DWC_ETH_QOS_mdio.c

+17 −0
Original line number Diff line number Diff line
@@ -1250,6 +1250,21 @@ int DWC_ETH_QOS_mdio_register(struct net_device *dev) 


	DBGPR_MDIO("-->DWC_ETH_QOS_mdio_register\n");



	if (pdata->res_data->phy_addr != -1) {

		phy_reg_read_status =

		   DWC_ETH_QOS_mdio_read_direct(pdata, pdata->res_data->phy_addr, MII_BMSR,

										&mii_status);

		if (phy_reg_read_status == 0) {

			if (mii_status != 0x0000 && mii_status != 0xffff) {

				phy_detected = 1;

				phyaddr = pdata->res_data->phy_addr;

				EMACINFO("skip_phy_detection (phyaddr)%d\n", phyaddr);

				goto skip_phy_detection;

			} else

				EMACERR("Invlaid phy address specified in device tree\n");

		}

	}



	/* find the phy ID or phy address which is connected to our MAC */

	for (phyaddr = 0; phyaddr < 32; phyaddr++) {
@@ -1276,6 +1291,8 @@ int DWC_ETH_QOS_mdio_register(struct net_device *dev) 
		return -ENOLINK;

	}



	skip_phy_detection:



	pdata->phyaddr = phyaddr;

	pdata->bus_id = 0x1;

	pdata->phy_intr_en = false;

drivers/emac-dwc-eqos/DWC_ETH_QOS_platform.c

+10 −0
Original line number Diff line number Diff line
@@ -920,6 +920,16 @@ static int DWC_ETH_QOS_get_dts_config(struct platform_device *pdev) 
		dwc_eth_qos_res_data.is_pinctrl_names = true;

		EMACDBG("qcom,pinctrl-names present\n");

	}

	dwc_eth_qos_res_data.phy_addr = -1;

	if (of_property_read_bool(pdev->dev.of_node, "emac-phy-addr")) {

		ret = of_property_read_u32(pdev->dev.of_node, "emac-phy-addr",

			&dwc_eth_qos_res_data.phy_addr);

		if (ret) {

			EMACINFO("Pphy_addr not specified, using dynamic phy detection\n");

			dwc_eth_qos_res_data.phy_addr = -1;

		}

		EMACINFO("phy_addr = %d\n", dwc_eth_qos_res_data.phy_addr);

	}



	return ret;

drivers/emac-dwc-eqos/DWC_ETH_QOS_yheader.h

+1 −0
Original line number Diff line number Diff line
@@ -1584,6 +1584,7 @@ struct DWC_ETH_QOS_res_data { 
	unsigned int emac_hw_version_type;

	bool early_eth_en;

	bool pps_lpass_conn_en;

	int phy_addr;

};



struct DWC_ETH_QOS_prv_ipa_data {