2 * Copyright 2014 Freescale Semiconductor, Inc.
4 * SPDX-License-Identifier: GPL-2.0+
6 * This file handles the board muxing between the RGMII/SGMII PHYs on
7 * Freescale LS1021AQDS board. The RGMII PHYs are the three on-board 1Gb
8 * ports. The SGMII PHYs are provided by the standard Freescale four-port
11 * Muxing is handled via the PIXIS BRDCFG4 register. The EMI1 bits control
12 * muxing among the RGMII PHYs and the SGMII PHYs. The value for RGMII depends
13 * on which port is used. The value for SGMII depends on which slot the riser
19 #include <asm/arch/fsl_serdes.h>
24 #include "../common/sgmii_riser.h"
25 #include "../common/qixis.h"
27 #define EMI1_MASK 0x1f
31 #define EMI1_SGMII1 0x1c
32 #define EMI1_SGMII2 0x1d
35 struct mii_dev *realbus;
38 static void ls1021a_mux_mdio(int addr)
42 brdcfg4 = QIXIS_READ(brdcfg[4]);
66 QIXIS_WRITE(brdcfg[4], brdcfg4);
69 static int ls1021a_mdio_read(struct mii_dev *bus, int addr, int devad,
72 struct ls1021a_mdio *priv = bus->priv;
74 ls1021a_mux_mdio(addr);
76 return priv->realbus->read(priv->realbus, addr, devad, regnum);
79 static int ls1021a_mdio_write(struct mii_dev *bus, int addr, int devad,
80 int regnum, u16 value)
82 struct ls1021a_mdio *priv = bus->priv;
84 ls1021a_mux_mdio(addr);
86 return priv->realbus->write(priv->realbus, addr, devad, regnum, value);
89 static int ls1021a_mdio_reset(struct mii_dev *bus)
91 struct ls1021a_mdio *priv = bus->priv;
93 return priv->realbus->reset(priv->realbus);
96 static int ls1021a_mdio_init(char *realbusname, char *fakebusname)
98 struct ls1021a_mdio *lsmdio;
99 struct mii_dev *bus = mdio_alloc();
102 printf("Failed to allocate LS102xA MDIO bus\n");
106 lsmdio = malloc(sizeof(*lsmdio));
108 printf("Failed to allocate LS102xA private data\n");
113 bus->read = ls1021a_mdio_read;
114 bus->write = ls1021a_mdio_write;
115 bus->reset = ls1021a_mdio_reset;
116 sprintf(bus->name, fakebusname);
118 lsmdio->realbus = miiphy_get_dev_by_name(realbusname);
120 if (!lsmdio->realbus) {
121 printf("No bus with name %s\n", realbusname);
129 return mdio_register(bus);
132 int board_eth_init(bd_t *bis)
134 struct fsl_pq_mdio_info mdio_info;
135 struct tsec_info_struct tsec_info[3];
139 SET_STD_TSEC_INFO(tsec_info[num], 1);
140 if (is_serdes_configured(SGMII_TSEC1)) {
141 puts("eTSEC1 is in sgmii mode\n");
142 tsec_info[num].flags |= TSEC_SGMII;
143 tsec_info[num].mii_devname = "LS1021A_SGMII_MDIO";
145 tsec_info[num].mii_devname = "LS1021A_RGMII_MDIO";
150 SET_STD_TSEC_INFO(tsec_info[num], 2);
151 if (is_serdes_configured(SGMII_TSEC2)) {
152 puts("eTSEC2 is in sgmii mode\n");
153 tsec_info[num].flags |= TSEC_SGMII;
154 tsec_info[num].mii_devname = "LS1021A_SGMII_MDIO";
156 tsec_info[num].mii_devname = "LS1021A_RGMII_MDIO";
161 SET_STD_TSEC_INFO(tsec_info[num], 3);
162 tsec_info[num].mii_devname = "LS1021A_RGMII_MDIO";
166 printf("No TSECs initialized\n");
170 #ifdef CONFIG_FSL_SGMII_RISER
171 fsl_sgmii_riser_init(tsec_info, num);
174 mdio_info.regs = (struct tsec_mii_mng *)CONFIG_SYS_MDIO_BASE_ADDR;
175 mdio_info.name = DEFAULT_MII_NAME;
177 fsl_pq_mdio_init(bis, &mdio_info);
179 /* Register the virtual MDIO front-ends */
180 ls1021a_mdio_init(DEFAULT_MII_NAME, "LS1021A_RGMII_MDIO");
181 ls1021a_mdio_init(DEFAULT_MII_NAME, "LS1021A_SGMII_MDIO");
183 tsec_eth_init(bis, tsec_info, num);
185 return pci_eth_init(bis);