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Diffstat (limited to 'board/idmr/mii.c')
| -rw-r--r-- | board/idmr/mii.c | 303 | 
1 files changed, 0 insertions, 303 deletions
| diff --git a/board/idmr/mii.c b/board/idmr/mii.c deleted file mode 100644 index 78a7028bc..000000000 --- a/board/idmr/mii.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - * Copyright (C) 2004-2007 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 <asm/fec.h> -#include <asm/immap.h> - -#include <config.h> -#include <net.h> - -DECLARE_GLOBAL_DATA_PTR; - -#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI) -#undef MII_DEBUG -#undef ET_DEBUG - -int fecpin_setclear(struct eth_device *dev, int setclear) -{ -	if (setclear) { -		/* Enable Ethernet pins */ -		mbar_writeByte(MCF_GPIO_PAR_FECI2C, CFG_FECI2C); -	} else { -	} - -	return 0; -} - -#if defined(CFG_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)) - -/* PHY identification */ -#define PHY_ID_LXT970		0x78100000	/* LXT970 */ -#define PHY_ID_LXT971		0x001378e0	/* LXT971 and 972 */ -#define PHY_ID_82555		0x02a80150	/* Intel 82555 */ -#define PHY_ID_QS6612		0x01814400	/* QS6612 */ -#define PHY_ID_AMD79C784	0x00225610	/* AMD 79C784 */ -#define PHY_ID_LSI80225		0x0016f870	/* LSI 80225 */ -#define PHY_ID_LSI80225B	0x0016f880	/* LSI 80225/B */ -#define PHY_ID_DP83848VV	0x20005C90	/* National 83848 */ -#define PHY_ID_DP83849		0x20005CA2	/* National 82849 */ -#define PHY_ID_KS8721BL		0x00221619	/* Micrel KS8721BL/SL */ - -#define STR_ID_LXT970		"LXT970" -#define STR_ID_LXT971		"LXT971" -#define STR_ID_82555		"Intel82555" -#define STR_ID_QS6612		"QS6612" -#define STR_ID_AMD79C784	"AMD79C784" -#define STR_ID_LSI80225		"LSI80225" -#define STR_ID_LSI80225B	"LSI80225/B" -#define STR_ID_DP83848VV	"N83848" -#define STR_ID_DP83849		"N83849" -#define STR_ID_KS8721BL		"KS8721BL" - -/**************************************************************************** - * mii_init -- Initialize the MII for MII command without ethernet - * This function is a subset of eth_init - **************************************************************************** - */ -void mii_reset(struct fec_info_s *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) -{ -	struct fec_info_s *info; -	struct eth_device *dev; -	volatile fec_t *ep; -	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				/* CFG_DISCOVER_PHY || CONFIG_CMD_MII */ - -#if defined(CFG_DISCOVER_PHY) -int mii_discover_phy(struct eth_device *dev) -{ -#define MAX_PHY_PASSES 11 -	struct fec_info_s *info = dev->priv; -	int phyaddr, pass; -	uint phyno, phytype; - -	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)); - -				switch (phytype & 0xffffffff) { -				case PHY_ID_KS8721BL: -					strcpy(info->phy_name, -					       STR_ID_KS8721BL); -					info->phyname_init = 1; -					break; -				default: -					strcpy(info->phy_name, "unknown"); -					info->phyname_init = 1; -					break; -				} - -#ifdef ET_DEBUG -				printf("PHY @ 0x%x pass %d type ", phyno, pass); -				switch (phytype & 0xffffffff) { -				case PHY_ID_KS8721BL: -					printf(STR_ID_KS8721BL); -					break; -				default: -					printf("0x%08x\n", phytype); -					break; -				} -#endif -			} -		} -	} -	if (phyaddr < 0) -		printf("No PHY device found.\n"); - -	return phyaddr; -} -#endif				/* CFG_DISCOVER_PHY */ - -void mii_init(void) __attribute__((weak,alias("__mii_init"))); - -void __mii_init(void) -{ -	volatile fec_t *fecp; -	struct fec_info_s *info; -	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 */ |