Chips supported:- 1. 88E6161 6 port gbe swtich with 5 integrated PHYs 2. 88E6165 6 port gbe swtich with 5 integrated PHYs 2. 88E6132 3 port gbe swtich with 2 integrated PHYs Platform specific configuration supported for:- default or router port vlan configuration led_init configuration mdip/n polarity reversal configuration

Note: This driver is supported and tested against kirkwood egiga interface

Contributors: Yotam Admon yotam@marvell.com Michael Blostein <michaelbl@marvell.com

Reviewed by: Ronen Shitrit rshitrit@marvell.com Signed-off-by: Prafulla Wadaskar prafulla@marvell.com --- Change log:- v2: updated as per review comments for v1 removed other two drivers form earlier patch debug_prints removed driver moved to drivers/net/

v3: updated as per review comments for v2 miiphy interface used, platform specific dependency resolved Chip id detection and printing added common code forked out some cosmetic and magic number fixes

v4: updated as per review comments for v3 mv88e61xx.h added platform specific configuration support added some more documentation references provided cleaned rgmii delay enable related code

v5: updated as per review comments for v3 code moved to drivers/net/phy/ vlan_init changed to vlan_config and platform specific

v6: mutichip related alias moved to header file vlan_config functions renamed as port_vlan_config mv_switch_88f61xx_init renamed as mv88f61xx_switch_initialization the function prototype for same is added in netdev.h

v7: minor updates as per v6 review feedback RD_PHY/WR_PHY macros defined and used in the code

v8: BITxx macros replaced by 1<<xx

v9: switch specific public declaration moved to netdev.h for clean board specific usage

v10: swtich specific public defination ifdefed and renamed led_init and reverse_mdipn configuration support added

drivers/net/phy/Makefile | 1 + drivers/net/phy/mv88e61xx.c | 413 +++++++++++++++++++++++++++++++++++++++++++ drivers/net/phy/mv88e61xx.h | 62 +++++++ include/netdev.h | 47 +++++ 4 files changed, 523 insertions(+), 0 deletions(-) create mode 100644 drivers/net/phy/mv88e61xx.c create mode 100644 drivers/net/phy/mv88e61xx.h

diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index 4fe3b05..3b92614 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk LIB := $(obj)libphy.a

COBJS-$(CONFIG_BITBANGMII) += miiphybb.o +COBJS-$(CONFIG_MV88E61XX_SWITCH) += mv88e61xx.o

COBJS := $(COBJS-y) SRCS := $(COBJS:.o=.c) diff --git a/drivers/net/phy/mv88e61xx.c b/drivers/net/phy/mv88e61xx.c new file mode 100644 index 0000000..fbccbbe --- /dev/null +++ b/drivers/net/phy/mv88e61xx.c @@ -0,0 +1,413 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Prafulla Wadaskar prafulla@marvell.com + * + * 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 <common.h> +#include <netdev.h> +#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(u32 devaddr) +{ + u32 reg = 0; + u32 timeout = MV88E61XX_PHY_TIMEOUT; + + /* Poll till SMIBusy bit is clear */ + do { + miiphy_read(name, devaddr, 0x0, &reg); + 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 reg; + u32 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(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 reg; + u32 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(mii_dev_addr); + /* Write command to Switch indirect command register (read) */ + miiphy_write(name, mii_dev_addr, 0x0, + reg_ofs | (phy_adr << 5) | (1 << 10) | (1 << 12) | (1 << + 15)); + mv88e61xx_busychk_multic(mii_dev_addr); + /* Read data from Switch indirect data register */ + miiphy_read(name, mii_dev_addr, 0x1, (u16 *) & 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); + 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); + 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); + 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); + 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); + 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, &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); + 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); + 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 << 28); /* 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, &reg); + reg &= 0xfff0; + if (reg == 0x1610) + idstr = "88E6161"; + if (reg == 0x1650) + idstr = "88E6165"; + if (reg == 0x1210) { + idstr = "88E6123"; + /* ports 2,3,4 not available */ + swconfig->ports_enabled &= 0x023; + } + + /* 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, &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; +} diff --git a/drivers/net/phy/mv88e61xx.h b/drivers/net/phy/mv88e61xx.h new file mode 100644 index 0000000..41342f5 --- /dev/null +++ b/drivers/net/phy/mv88e61xx.h @@ -0,0 +1,62 @@ +/* + * (C) Copyright 2009 + * Marvell Semiconductor <www.marvell.com> + * Prafulla Wadaskar prafulla@marvell.com + * + * 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 + */ + +#ifndef _MV88E61XX_H +#define _MV88E61XX_H + +#include <miiphy.h> + +#define MV88E61XX_CPU_PORT 0x5 +#define MV88E61XX_MAX_PORTS_NUM 0x6 + +#define MV88E61XX_PHY_TIMEOUT 100000 + +#define MV88E61XX_PRT_STS_REG 0x1 +#define MV88E61XX_PRT_CTRL_REG 0x4 +#define MV88E61XX_PRT_VMAP_REG 0x6 +#define MV88E61XX_PRT_VID_REG 0x7 + +#define MV88E61XX_PRT_OFST 0x10 +#define MV88E61XX_PHY_CMD 0x18 +#define MV88E61XX_PHY_DATA 0x19 +#define MV88E61XX_RGMII_TIMECTRL_REG 0x1A +#define MV88E61XX_GLB2REG_DEVADR 0x1C + +#define MV88E61XX_BUSY_OFST 15 +#define MV88E61XX_MODE_OFST 12 +#define MV88E61XX_OP_OFST 10 +#define MV88E61XX_ADDR_OFST 5 + +#ifdef CONFIG_MV88E61XX_MULTICHIP_ADRMODE +static int mv88e61xx_busychk_multic(u32 devaddr); +static void mv88e61xx_wr_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 data); +static void mv88e61xx_rd_phy(char *name, u32 phy_adr, u32 reg_ofs, u16 * data); +#define WR_PHY mv88e61xx_wr_phy +#define RD_PHY mv88e61xx_rd_phy +#else +#define WR_PHY miiphy_write +#define RD_PHY miiphy_read +#endif /* CONFIG_MV88E61XX_MULTICHIP_ADRMODE */ + +#endif /* _MV88E61XX_H */ diff --git a/include/netdev.h b/include/netdev.h index 63cf730..4f2b23a 100644 --- a/include/netdev.h +++ b/include/netdev.h @@ -116,4 +116,51 @@ static inline int pci_eth_init(bd_t *bis) return num; }

+/* + * Boards with mv88e61xx switch can use this by defining + * CONFIG_MV88E61XX_SWITCH in respective board configheader file + * the stuct and enums here are used to specify switch configuration params + */ +#if defined(CONFIG_MV88E61XX_SWITCH) +enum mv88e61xx_cfg_vlan { + MV88E61XX_VLANCFG_DEFAULT, + MV88E61XX_VLANCFG_ROUTER +}; + +enum mv88e61xx_cfg_mdip { + MV88E61XX_MDIP_NOCHANGE, + MV88E61XX_MDIP_REVERSE +}; + +enum mv88e61xx_cfg_ledinit { + MV88E61XX_LED_INIT_DIS, + MV88E61XX_LED_INIT_EN +}; + +enum mv88e61xx_cfg_rgmiid { + MV88E61XX_RGMII_DELAY_DIS, + MV88E61XX_RGMII_DELAY_EN +}; + +enum mv88e61xx_cfg_prtstt { + MV88E61XX_PORTSTT_DISABLED, + MV88E61XX_PORTSTT_BLOCKING, + MV88E61XX_PORTSTT_LEARNING, + MV88E61XX_PORTSTT_FORWARDING +}; + +struct mv88e61xx_config { + char *name; + enum mv88e61xx_cfg_vlan vlancfg; + enum mv88e61xx_cfg_rgmiid rgmii_delay; + enum mv88e61xx_cfg_prtstt portstate; + enum mv88e61xx_cfg_ledinit led_init; + enum mv88e61xx_cfg_mdip mdip; + u32 ports_enabled; + u8 cpuport; +}; + +int mv88e61xx_switch_initialize(struct mv88e61xx_config *swconfig); +#endif /* CONFIG_MV88E61XX_SWITCH */ + #endif /* _NETDEV_H_ */