From: TsiChung Liew Tsi-Chung.Liew@freescale.com

All CF platforms' mii.c are consolidated into one

Signed-off-by: TsiChung Liew Tsi-Chung.Liew@freescale.com --- drivers/net/Makefile | 4 +- drivers/net/mcffec.c | 18 +--- drivers/net/mcfmii.c | 321 ++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 326 insertions(+), 17 deletions(-) create mode 100644 drivers/net/mcfmii.c

diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 439c354..7e53136 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -35,13 +35,13 @@ COBJS-$(CONFIG_DRIVER_DM9000) += dm9000x.o COBJS-$(CONFIG_E1000) += e1000.o COBJS-$(CONFIG_EEPRO100) += eepro100.o COBJS-$(CONFIG_ENC28J60) += enc28j60.o -COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o +COBJS-$(CONFIG_FSLDMAFEC) += fsl_mcdmafec.o mcfmii.o COBJS-$(CONFIG_GRETH) += greth.o COBJS-$(CONFIG_INCA_IP_SWITCH) += inca-ip_sw.o COBJS-$(CONFIG_DRIVER_KS8695ETH) += ks8695eth.o COBJS-$(CONFIG_DRIVER_LAN91C96) += lan91c96.o COBJS-$(CONFIG_MACB) += macb.o -COBJS-$(CONFIG_MCFFEC) += mcffec.o +COBJS-$(CONFIG_MCFFEC) += mcffec.o mcfmii.o COBJS-$(CONFIG_MPC5xxx_FEC) += mpc5xxx_fec.o COBJS-$(CONFIG_MPC512x_FEC) += mpc512x_fec.o COBJS-$(CONFIG_NATSEMI) += natsemi.o diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c index c00474e..18240a8 100644 --- a/drivers/net/mcffec.c +++ b/drivers/net/mcffec.c @@ -27,14 +27,14 @@ #include <common.h> #include <malloc.h>

-#include <asm/fec.h> -#include <asm/immap.h> - #include <command.h> #include <net.h> #include <netdev.h> #include <miiphy.h>

+#include <asm/fec.h> +#include <asm/immap.h> + #undef ET_DEBUG #undef MII_DEBUG

@@ -101,18 +101,6 @@ int fec_init(struct eth_device *dev, bd_t * bd); void fec_halt(struct eth_device *dev); void fec_reset(struct eth_device *dev);

-extern int fecpin_setclear(struct eth_device *dev, int setclear); - -#ifdef CONFIG_SYS_DISCOVER_PHY -extern void __mii_init(void); -extern uint mii_send(uint mii_cmd); -extern int mii_discover_phy(struct eth_device *dev); -extern int mcffec_miiphy_read(char *devname, unsigned char addr, - unsigned char reg, unsigned short *value); -extern int mcffec_miiphy_write(char *devname, unsigned char addr, - unsigned char reg, unsigned short value); -#endif - void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd) { if ((dup_spd >> 16) == FULL) { diff --git a/drivers/net/mcfmii.c b/drivers/net/mcfmii.c new file mode 100644 index 0000000..2b733c6 --- /dev/null +++ b/drivers/net/mcfmii.c @@ -0,0 +1,321 @@ +/* + * Copyright (C) 2004-2008 Freescale Semiconductor, Inc. + * TsiChung Liew (Tsi-Chung.Liew@freescale.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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <config.h> +#include <net.h> +#include <netdev.h> + +#ifdef CONFIG_MCF547x_8x +#include <asm/fsl_mcdmafec.h> +#else +#include <asm/fec.h> +#endif +#include <asm/immap.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) +#undef MII_DEBUG +#undef ET_DEBUG + +/*extern int fecpin_setclear(struct eth_device *dev, int setclear);*/ + +#if defined(CONFIG_SYS_DISCOVER_PHY) || defined(CONFIG_CMD_MII) +#include <miiphy.h> + +/* Make MII read/write commands for the FEC. */ +#define mk_mii_read(ADDR, REG) (0x60020000 | ((ADDR << 23) | \ + (REG & 0x1f) << 18)) +#define mk_mii_write(ADDR, REG, VAL) (0x50020000 | ((ADDR << 23) | \ + (REG & 0x1f) << 18) | (VAL & 0xffff)) + +#ifndef CONFIG_SYS_UNSPEC_PHYID +# define CONFIG_SYS_UNSPEC_PHYID 0 +#endif +#ifndef CONFIG_SYS_UNSPEC_STRID +# define CONFIG_SYS_UNSPEC_STRID 0 +#endif + +#ifdef CONFIG_MCF547x_8x +typedef struct fec_info_dma FEC_INFO_T; +#define FEC_T fecdma_t +#else +typedef struct fec_info_s FEC_INFO_T; +#define FEC_T fec_t +#endif + +typedef struct phy_info_struct { + u32 phyid; + char *strid; +} phy_info_t; + +phy_info_t phyinfo[] = { + {0x0022561B, "AMD79C784VC"}, /* AMD 79C784VC */ + {0x00406322, "BCM5222"}, /* Broadcom 5222 */ + {0x02a80150, "Intel82555"}, /* Intel 82555 */ + {0x0016f870, "LSI80225"}, /* LSI 80225 */ + {0x0016f880, "LSI80225/B"}, /* LSI 80225/B */ + {0x78100000, "LXT970"}, /* LXT970 */ + {0x001378e0, "LXT971"}, /* LXT971 and 972 */ + {0x00221619, "KS8721BL"}, /* Micrel KS8721BL/SL */ + {0x00221512, "KSZ8041NL"}, /* Micrel KSZ8041NL */ + {0x20005CE1, "N83640"}, /* National 83640 */ + {0x20005C90, "N83848"}, /* National 83848 */ + {0x20005CA2, "N83849"}, /* National 83849 */ + {0x01814400, "QS6612"}, /* QS6612 */ +#if defined(CONFIG_SYS_UNSPEC_PHYID) && defined(CONFIG_SYS_UNSPEC_STRID) + {CONFIG_SYS_UNSPEC_PHYID, CONFIG_SYS_UNSPEC_STRID}, +#endif + {0, 0} +}; + +/* + * mii_init -- Initialize the MII for MII command without ethernet + * This function is a subset of eth_init + */ +void mii_reset(FEC_INFO_T *info) +{ + volatile FEC_T *fecp = (FEC_T *) (info->miibase); + int i; + + fecp->ecr = FEC_ECR_RESET; + + for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) { + udelay(1); + } + if (i == FEC_RESET_DELAY) + printf("FEC_RESET_DELAY timeout\n"); +} + +/* send command to phy using mii, wait for result */ +uint mii_send(uint mii_cmd) +{ + FEC_INFO_T *info; + volatile FEC_T *ep; + struct eth_device *dev; + uint mii_reply; + int j = 0; + + /* retrieve from register structure */ + dev = eth_get_dev(); + info = dev->priv; + + ep = (FEC_T *) info->miibase; + + ep->mmfr = mii_cmd; /* command to phy */ + + /* wait for mii complete */ + while (!(ep->eir & FEC_EIR_MII) && (j < MCFFEC_TOUT_LOOP)) { + udelay(1); + j++; + } + if (j >= MCFFEC_TOUT_LOOP) { + printf("MII not complete\n"); + return -1; + } + + mii_reply = ep->mmfr; /* result from phy */ + ep->eir = FEC_EIR_MII; /* clear MII complete */ +#ifdef ET_DEBUG + printf("%s[%d] %s: sent=0x%8.8x, reply=0x%8.8x\n", + __FILE__, __LINE__, __FUNCTION__, mii_cmd, mii_reply); +#endif + + return (mii_reply & 0xffff); /* data read from phy */ +} +#endif /* CONFIG_SYS_DISCOVER_PHY || (CONFIG_MII) */ + +#if defined(CONFIG_SYS_DISCOVER_PHY) +int mii_discover_phy(struct eth_device *dev) +{ +#define MAX_PHY_PASSES 11 + FEC_INFO_T *info = dev->priv; + int phyaddr, pass; + uint phyno, phytype; + int i, found = 0; + + if (info->phyname_init) + return info->phy_addr; + + phyaddr = -1; /* didn't find a PHY yet */ + for (pass = 1; pass <= MAX_PHY_PASSES && phyaddr < 0; ++pass) { + if (pass > 1) { + /* PHY may need more time to recover from reset. + * The LXT970 needs 50ms typical, no maximum is + * specified, so wait 10ms before try again. + * With 11 passes this gives it 100ms to wake up. + */ + udelay(10000); /* wait 10ms */ + } + + for (phyno = 0; phyno < 32 && phyaddr < 0; ++phyno) { + + phytype = mii_send(mk_mii_read(phyno, PHY_PHYIDR1)); +#ifdef ET_DEBUG + printf("PHY type 0x%x pass %d type\n", phytype, pass); +#endif + if (phytype != 0xffff) { + phyaddr = phyno; + phytype <<= 16; + phytype |= + mii_send(mk_mii_read(phyno, PHY_PHYIDR2)); + +#ifdef ET_DEBUG + printf("PHY @ 0x%x pass %d\n", phyno, pass); +#endif + + for (i = 0; i < (sizeof(phyinfo) / sizeof(phy_info_t)); i++) { + if (phyinfo[i].phyid == phytype) { +#ifdef ET_DEBUG + printf("phyid %x - %s\n", + phyinfo[i].phyid, + phyinfo[i].strid); +#endif + strcpy(info->phy_name, phyinfo[i].strid); + info->phyname_init = 1; + found = 1; + break; + } + } + + if (!found) { +#ifdef ET_DEBUG + printf("0x%08x\n", phytype); +#endif + strcpy(info->phy_name, "unknown"); + info->phyname_init = 1; + break; + } + } + } + } + + if (phyaddr < 0) + printf("No PHY device found.\n"); + + return phyaddr; +} +#endif /* CONFIG_SYS_DISCOVER_PHY */ + +void mii_init(void) __attribute__((weak,alias("__mii_init"))); + +void __mii_init(void) +{ + FEC_INFO_T *info; + volatile FEC_T *fecp; + struct eth_device *dev; + int miispd = 0, i = 0; + u16 autoneg = 0; + + /* retrieve from register structure */ + dev = eth_get_dev(); + info = dev->priv; + + fecp = (FEC_T *) info->miibase; + + fecpin_setclear(dev, 1); + + mii_reset(info); + + /* We use strictly polling mode only */ + fecp->eimr = 0; + + /* Clear any pending interrupt */ + fecp->eir = 0xffffffff; + + /* Set MII speed */ + miispd = (gd->bus_clk / 1000000) / 5; + fecp->mscr = miispd << 1; + + info->phy_addr = mii_discover_phy(dev); + +#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS) + while (i < MCFFEC_TOUT_LOOP) { + autoneg = 0; + miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg); + i++; + + if ((autoneg & AUTONEGLINK) == AUTONEGLINK) + break; + + udelay(500); + } + if (i >= MCFFEC_TOUT_LOOP) { + printf("Auto Negotiation not complete\n"); + } + + /* adapt to the half/full speed settings */ + info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16; + info->dup_spd |= miiphy_speed(dev->name, info->phy_addr); +} + +/* + * Read and write a MII PHY register, routines used by MII Utilities + * + * FIXME: These routines are expected to return 0 on success, but mii_send + * does _not_ return an error code. Maybe 0xFFFF means error, i.e. + * no PHY connected... + * For now always return 0. + * FIXME: These routines only work after calling eth_init() at least once! + * Otherwise they hang in mii_send() !!! Sorry! + */ + +int mcffec_miiphy_read(char *devname, unsigned char addr, unsigned char reg, + unsigned short *value) +{ + short rdreg; /* register working value */ + +#ifdef MII_DEBUG + printf("miiphy_read(0x%x) @ 0x%x = ", reg, addr); +#endif + rdreg = mii_send(mk_mii_read(addr, reg)); + + *value = rdreg; + +#ifdef MII_DEBUG + printf("0x%04x\n", *value); +#endif + + return 0; +} + +int mcffec_miiphy_write(char *devname, unsigned char addr, unsigned char reg, + unsigned short value) +{ + short rdreg; /* register working value */ + +#ifdef MII_DEBUG + printf("miiphy_write(0x%x) @ 0x%x = ", reg, addr); +#endif + + rdreg = mii_send(mk_mii_write(addr, reg, value)); + +#ifdef MII_DEBUG + printf("0x%04x\n", value); +#endif + + return 0; +} + +#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */