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      1 // SPDX-License-Identifier: GPL-2.0+
      2 /*
      3  * Copyright 2013 Freescale Semiconductor, Inc.
      4  */
      5 #include <common.h>
      6 #include <phy.h>
      7 #include <fm_eth.h>
      8 #include <asm/io.h>
      9 #include <asm/immap_85xx.h>
     10 #include <asm/fsl_serdes.h>
     11 
     12 phy_interface_t fman_port_enet_if(enum fm_port port)
     13 {
     14 	ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
     15 	u32 rcwsr13 = in_be32(&gur->rcwsr[13]);
     16 
     17 	/* handle RGMII first */
     18 	if ((port == FM1_DTSEC2) &&
     19 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
     20 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_ENET_PORT)) {
     21 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
     22 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
     23 			return PHY_INTERFACE_MODE_RGMII;
     24 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
     25 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
     26 			return PHY_INTERFACE_MODE_MII;
     27 	}
     28 
     29 	if ((port == FM1_DTSEC4) &&
     30 	    ((rcwsr13 & FSL_CORENET_RCWSR13_MAC2_GMII_SEL) ==
     31 			FSL_CORENET_RCWSR13_MAC2_GMII_SEL_L2_SWITCH)) {
     32 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
     33 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_RGMII)
     34 			return PHY_INTERFACE_MODE_RGMII;
     35 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC1) ==
     36 				FSL_CORENET_RCWSR13_EC1_FM1_DTSEC4_MII)
     37 			return PHY_INTERFACE_MODE_MII;
     38 	}
     39 
     40 	if (port == FM1_DTSEC5) {
     41 		if ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
     42 				FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_RGMII)
     43 			return PHY_INTERFACE_MODE_RGMII;
     44 		else if ((rcwsr13 & FSL_CORENET_RCWSR13_EC2) ==
     45 				FSL_CORENET_RCWSR13_EC2_FM1_DTSEC5_MII)
     46 			return PHY_INTERFACE_MODE_MII;
     47 	}
     48 
     49 	switch (port) {
     50 	case FM1_DTSEC1:
     51 	case FM1_DTSEC2:
     52 		if (is_serdes_configured(QSGMII_SW1_A + port - FM1_DTSEC1) ||
     53 		    is_serdes_configured(SGMII_SW1_MAC1  + port - FM1_DTSEC1))
     54 			return PHY_INTERFACE_MODE_QSGMII;
     55 	case FM1_DTSEC3:
     56 	case FM1_DTSEC4:
     57 	case FM1_DTSEC5:
     58 		if (is_serdes_configured(SGMII_FM1_DTSEC1 + port - FM1_DTSEC1))
     59 			return PHY_INTERFACE_MODE_SGMII;
     60 		break;
     61 	default:
     62 		return PHY_INTERFACE_MODE_NONE;
     63 	}
     64 
     65 	return PHY_INTERFACE_MODE_NONE;
     66 }
     67