/* * (C) Copyright 2009 * Marvell Semiconductor * Prafulla Wadaskar * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, * MA 02110-1301 USA */ #include #include #include "mv88e61xx.h" #ifdef CONFIG_MV88E61XX_MULTICHIP_ADRMODE /* Chip Address mode * The Switch support two modes of operation * 1. single chip mode and * 2. Multi-chip mode * Refer section 9.2 &9.3 in chip datasheet-02 for more details * * By default single chip mode is configured * multichip mode operation can be configured in board header */ static int mv88e61xx_busychk_multic(char *name, u32 devaddr) { u16 reg = 0; u32 timeout = MV88E61XX_PHY_TIMEOUT; /* Poll till SMIBusy bit is clear */ do { miiphy_read(name, devaddr, 0x0, ®); if (timeout-- == 0) { printf("SMI busy timeout\n"); return -1; } } while (reg & (1 << 15)); return 0; } static void mv88e61xx_wr_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 data) { u16 mii_dev_addr; /* command to read PHY dev address */ if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) { printf("Error..could not read PHY dev address\n"); return; } mv88e61xx_busychk_multic(name, mii_dev_addr); /* Write data to Switch indirect data register */ miiphy_write(name, mii_dev_addr, 0x1, data); /* Write command to Switch indirect command register (write) */ miiphy_write(name, mii_dev_addr, 0x0, reg_ofs | (phy_adr << 5) | (1 << 10) | (1 << 12) | (1 << 15)); } static void mv88e61xx_rd_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 * data) { u16 mii_dev_addr; /* command to read PHY dev address */ if (miiphy_read(name, 0xEE, 0xEE, &mii_dev_addr)) { printf("Error..could not read PHY dev address\n"); return; } mv88e61xx_busychk_multic(name, mii_dev_addr); /* Write command to Switch indirect command register (read) */ miiphy_write(name, mii_dev_addr, 0x0, reg_ofs | (phy_adr << 5) | (1 << 11) | (1 << 12) | (1 << 15)); mv88e61xx_busychk_multic(name, mii_dev_addr); /* Read data from Switch indirect data register */ miiphy_read(name, mii_dev_addr, 0x1, data); } #endif /* CONFIG_MV88E61XX_MULTICHIP_ADRMODE */ static void mv88e61xx_port_vlan_config(struct mv88e61xx_config *swconfig, u32 max_prtnum, u32 ports_ofs) { u32 prt; u16 reg; char *name = swconfig->name; u32 cpu_port = swconfig->cpuport; u32 port_mask = swconfig->ports_enabled; enum mv88e61xx_cfg_vlan vlancfg = swconfig->vlancfg; /* be sure all ports are disabled */ for (prt = 0; prt < max_prtnum; prt++) { RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, ®); reg &= ~0x3; WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, reg); if (!(cpu_port & (1 << prt))) continue; /* Set CPU port VID to 0x1 */ RD_PHY(name, (ports_ofs + prt), MV88E61XX_PRT_VID_REG, ®); reg &= ~0xfff; reg |= 0x1; WR_PHY(name, (ports_ofs + prt), MV88E61XX_PRT_VID_REG, reg); } /* Setting Port default priority for all ports to zero */ for (prt = 0; prt < max_prtnum; prt++) { RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VID_REG, ®); reg &= ~0xc000; WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VID_REG, reg); } /* Setting VID and VID map for all ports except CPU port */ for (prt = 0; prt < max_prtnum; prt++) { /* only for enabled ports */ if ((1 << prt) & port_mask) { /* skip CPU port */ if ((1 << prt) & cpu_port) { /* * Set Vlan map table for cpu_port to see * all ports */ RD_PHY(name, (ports_ofs + prt), MV88E61XX_PRT_VMAP_REG, ®); reg &= ~((1 << max_prtnum) - 1); reg |= port_mask & ~(1 << prt); WR_PHY(name, (ports_ofs + prt), MV88E61XX_PRT_VMAP_REG, reg); } else { /* * set Ports VLAN Mapping. * port prt <--> cpu_port VLAN #prt+1. */ RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VID_REG, ®); reg &= ~0x0fff; reg |= (prt + 1); WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VID_REG, reg); RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VMAP_REG, ®); if (vlancfg == MV88E61XX_VLANCFG_DEFAULT) { /* * all any port can send frames to all other ports * ref: sec 3.2.1.1 of datasheet */ reg |= 0x03f; reg &= ~(1 << prt); } else if (vlancfg == MV88E61XX_VLANCFG_ROUTER) { /* * all other ports can send frames to CPU port only * ref: sec 3.2.1.2 of datasheet */ reg &= ~((1 << max_prtnum) - 1); reg |= cpu_port; } WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_VMAP_REG, reg); } } } /* * enable only appropriate ports to forwarding mode * and disable the others */ for (prt = 0; prt < max_prtnum; prt++) { if ((1 << prt) & port_mask) { RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, ®); reg |= 0x3; WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, reg); } else { /* Disable port */ RD_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, ®); reg &= ~0x3; WR_PHY(name, ports_ofs + prt, MV88E61XX_PRT_CTRL_REG, reg); } } } /* * Make sure SMIBusy bit cleared before another * SMI operation can take place */ static int mv88e61xx_busychk(char *name) { u32 reg = 0; u32 timeout = MV88E61XX_PHY_TIMEOUT; do { RD_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (u16 *) & reg); if (timeout-- == 0) { printf("SMI busy timeout\n"); return -1; } } while (reg & 1 << 15); /* busy mask */ return 0; } /* * Power up the specified port and reset PHY */ static int mv88361xx_powerup(struct mv88e61xx_config *swconfig, u32 prt) { char *name = swconfig->name; /* Write Copper Specific control reg1 (0x14) for- * Enable Phy power up * Energy Detect on (sense&Xmit NLP Periodically * reset other settings default */ WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, 0x3360); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (0x9410 | (prt << 5))); if (mv88e61xx_busychk(name)) return -1; /* Write PHY ctrl reg (0x0) to apply * Phy reset (set bit 15 low) * reset other default values */ WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, 0x1140); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (0x9400 | (prt << 5))); if (mv88e61xx_busychk(name)) return -1; return 0; } /* * Default Setup for LED[0]_Control (ref: Table 46 Datasheet-3) * is set to "On-1000Mb/s Link, Off Else" * This function sets it to "On-Link, Blink-Activity, Off-NoLink" * * This is optional settings may be needed on some boards * to setup PHY LEDs default configuration to detect 10/100/1000Mb/s * Link status */ static int mv88361xx_led_init(struct mv88e61xx_config *swconfig, u32 prt) { char *name = swconfig->name; u16 reg; if (swconfig->led_init != MV88E61XX_LED_INIT_EN) return 0; /* set page address to 3 */ reg = 3; WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, reg); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (1 << MV88E61XX_BUSY_OFST | 1 << MV88E61XX_MODE_OFST | 1 << MV88E61XX_OP_OFST | prt << MV88E61XX_ADDR_OFST | 22)); if (mv88e61xx_busychk(name)) return -1; /* set LED Func Ctrl reg */ reg = 1; /* LED[0] On-Link, Blink-Activity, Off-NoLink */ WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, reg); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (1 << MV88E61XX_BUSY_OFST | 1 << MV88E61XX_MODE_OFST | 1 << MV88E61XX_OP_OFST | prt << MV88E61XX_ADDR_OFST | 16)); if (mv88e61xx_busychk(name)) return -1; /* set page address to 0 */ reg = 0; WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, reg); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (1 << MV88E61XX_BUSY_OFST | 1 << MV88E61XX_MODE_OFST | 1 << MV88E61XX_OP_OFST | prt << MV88E61XX_ADDR_OFST | 22)); if (mv88e61xx_busychk(name)) return -1; return 0; } /* * Reverse Transmit polarity for Media Dependent Interface * Pins (MDIP) bits in Copper Specific Control Register 3 * (Page 0, Reg 20 for each phy (except cpu port) * Reference: Section 1.1 Switch datasheet-3 * * This is optional settings may be needed on some boards * for PHY<->magnetics h/w tuning */ static int mv88361xx_reverse_mdipn(struct mv88e61xx_config *swconfig, u32 prt) { char *name = swconfig->name; u16 reg; if (swconfig->mdip != MV88E61XX_MDIP_REVERSE) return 0; reg = 0x0f; /*Reverse MDIP/N[3:0] bits */ WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_DATA, reg); WR_PHY(name, MV88E61XX_GLB2REG_DEVADR, MV88E61XX_PHY_CMD, (1 << MV88E61XX_BUSY_OFST | 1 << MV88E61XX_MODE_OFST | 1 << MV88E61XX_OP_OFST | prt << MV88E61XX_ADDR_OFST | 20)); if (mv88e61xx_busychk(name)) return -1; return 0; } /* * Marvell 88E61XX Switch initialization */ int mv88e61xx_switch_initialize(struct mv88e61xx_config *swconfig) { u32 prt; u16 reg; char *idstr; char *name = swconfig->name; if (miiphy_set_current_dev(name)) { printf("%s failed\n", __FUNCTION__); return -1; } if (!(swconfig->cpuport & ((1 << 4) | (1 << 5)))) { swconfig->cpuport = (1 << 5); printf("Invalid cpu port config, using default port5\n"); } RD_PHY(name, MV88E61XX_PRT_OFST, PHY_PHYIDR2, ®); switch (reg &= 0xfff0) { case 0x1610: idstr = "88E6161"; break; case 0x1650: idstr = "88E6165"; break; case 0x1210: idstr = "88E6123"; /* ports 2,3,4 not available */ swconfig->ports_enabled &= 0x023; break; default: /* Could not detect switch id */ idstr = "88E61??"; break; } /* Port based VLANs configuration */ if ((swconfig->vlancfg == MV88E61XX_VLANCFG_DEFAULT) || (swconfig->vlancfg == MV88E61XX_VLANCFG_ROUTER)) mv88e61xx_port_vlan_config(swconfig, MV88E61XX_MAX_PORTS_NUM, MV88E61XX_PRT_OFST); else { printf("Unsupported mode %s failed\n", __FUNCTION__); return -1; } if (swconfig->rgmii_delay == MV88E61XX_RGMII_DELAY_EN) { /* * Enable RGMII delay on Tx and Rx for CPU port * Ref: sec 9.5 of chip datasheet-02 */ WR_PHY(name, MV88E61XX_PRT_OFST + 5, MV88E61XX_RGMII_TIMECTRL_REG, 0x18); WR_PHY(name, MV88E61XX_PRT_OFST + 4, MV88E61XX_RGMII_TIMECTRL_REG, 0xc1e7); } for (prt = 0; prt < MV88E61XX_MAX_PORTS_NUM; prt++) { if (!((1 << prt) & swconfig->cpuport)) { if (mv88361xx_led_init(swconfig, prt)) return -1; if (mv88361xx_reverse_mdipn(swconfig, prt)) return -1; if (mv88361xx_powerup(swconfig, prt)) return -1; } /*Program port state */ RD_PHY(name, MV88E61XX_PRT_OFST + prt, MV88E61XX_PRT_CTRL_REG, ®); WR_PHY(name, MV88E61XX_PRT_OFST + prt, MV88E61XX_PRT_CTRL_REG, reg | (swconfig->portstate & 0x03)); } printf("%s Initialized on %s\n", idstr, name); return 0; }