tsec.c

U-boot源码 ARM7启动代码

	/* Setting MIIM_88E1145_PHY_EXT_CR */
	if (priv->flags & TSEC_REDUCED)
		return mii_data |
		    MIIM_M88E1145_RGMII_RX_DELAY | MIIM_M88E1145_RGMII_TX_DELAY;
	else
		return mii_data;
}

static struct phy_info phy_info_M88E1145 = {
	0x01410cd,
	"Marvell 88E1145",
	4,
	(struct phy_cmd[]){	/* config */
			   /* Reset the PHY */
			   {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},

			   /* Errata E0, E1 */
			   {29, 0x001b, NULL},
			   {30, 0x418f, NULL},
			   {29, 0x0016, NULL},
			   {30, 0xa2da, NULL},

			   /* Configure the PHY */
			   {MIIM_GBIT_CONTROL, MIIM_GBIT_CONTROL_INIT, NULL},
			   {MIIM_ANAR, MIIM_ANAR_INIT, NULL},
			   {MIIM_88E1011_PHY_SCR, MIIM_88E1011_PHY_MDI_X_AUTO,
			    NULL},
			   {MIIM_88E1145_PHY_EXT_CR, 0, &m88e1145_setmode},
			   {MIIM_CONTROL, MIIM_CONTROL_RESET, NULL},
			   {MIIM_CONTROL, MIIM_CONTROL_INIT, NULL},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Status is read once to clear old link state */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   {MIIM_88E1111_PHY_LED_CONTROL,
			    MIIM_88E1111_PHY_LED_DIRECT, NULL},
			   /* Read the Status */
			   {MIIM_88E1011_PHY_STATUS, miim_read,
			    &mii_parse_88E1011_psr},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};

struct phy_info phy_info_cis8204 = {
	0x3f11,
	"Cicada Cis8204",
	6,
	(struct phy_cmd[]){	/* config */
			   /* Override PHY config settings */
			   {MIIM_CIS8201_AUX_CONSTAT,
			    MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
			   /* Configure some basic stuff */
			   {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
			   {MIIM_CIS8204_SLED_CON, MIIM_CIS8204_SLEDCON_INIT,
			    &mii_cis8204_fixled},
			   {MIIM_CIS8204_EPHY_CON, MIIM_CIS8204_EPHYCON_INIT,
			    &mii_cis8204_setmode},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Read the Status (2x to make sure link is right) */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   /* Read the status */
			   {MIIM_CIS8201_AUX_CONSTAT, miim_read,
			    &mii_parse_cis8201},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};

/* Cicada 8201 */
struct phy_info phy_info_cis8201 = {
	0xfc41,
	"CIS8201",
	4,
	(struct phy_cmd[]){	/* config */
			   /* Override PHY config settings */
			   {MIIM_CIS8201_AUX_CONSTAT,
			    MIIM_CIS8201_AUXCONSTAT_INIT, NULL},
			   /* Set up the interface mode */
			   {MIIM_CIS8201_EXT_CON1, MIIM_CIS8201_EXTCON1_INIT,
			    NULL},
			   /* Configure some basic stuff */
			   {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Read the Status (2x to make sure link is right) */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   /* Read the status */
			   {MIIM_CIS8201_AUX_CONSTAT, miim_read,
			    &mii_parse_cis8201},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};
struct phy_info phy_info_VSC8244 = {
	0x3f1b,
	"Vitesse VSC8244",
	6,
	(struct phy_cmd[]){	/* config */
			   /* Override PHY config settings */
			   /* Configure some basic stuff */
			   {MIIM_CONTROL, MIIM_CONTROL_INIT, &mii_cr_init},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Read the Status (2x to make sure link is right) */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   /* Read the status */
			   {MIIM_VSC8244_AUX_CONSTAT, miim_read,
			    &mii_parse_vsc8244},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};

struct phy_info phy_info_dm9161 = {
	0x0181b88,
	"Davicom DM9161E",
	4,
	(struct phy_cmd[]){	/* config */
			   {MIIM_CONTROL, MIIM_DM9161_CR_STOP, NULL},
			   /* Do not bypass the scrambler/descrambler */
			   {MIIM_DM9161_SCR, MIIM_DM9161_SCR_INIT, NULL},
			   /* Clear 10BTCSR to default */
			   {MIIM_DM9161_10BTCSR, MIIM_DM9161_10BTCSR_INIT,
			    NULL},
			   /* Configure some basic stuff */
			   {MIIM_CONTROL, MIIM_CR_INIT, NULL},
			   /* Restart Auto Negotiation */
			   {MIIM_CONTROL, MIIM_DM9161_CR_RSTAN, NULL},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Status is read once to clear old link state */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   /* Read the status */
			   {MIIM_DM9161_SCSR, miim_read,
			    &mii_parse_dm9161_scsr},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};
/* a generic flavor.  */
struct phy_info phy_info_generic =  {
	0,
	"Unknown/Generic PHY",
	32,
	(struct phy_cmd[]) { /* config */
		{PHY_BMCR, PHY_BMCR_RESET, NULL},
		{PHY_BMCR, PHY_BMCR_AUTON|PHY_BMCR_RST_NEG, NULL},
		{miim_end,}
	},
	(struct phy_cmd[]) { /* startup */
		{PHY_BMSR, miim_read, NULL},
		{PHY_BMSR, miim_read, &mii_parse_sr},
		{PHY_BMSR, miim_read, &mii_parse_link},
		{miim_end,}
	},
	(struct phy_cmd[]) { /* shutdown */
		{miim_end,}
	}
};


uint mii_parse_lxt971_sr2(uint mii_reg, struct tsec_private *priv)
{
	unsigned int speed;
	if (priv->link) {
		speed = mii_reg & MIIM_LXT971_SR2_SPEED_MASK;

		switch (speed) {
		case MIIM_LXT971_SR2_10HDX:
			priv->speed = 10;
			priv->duplexity = 0;
			break;
		case MIIM_LXT971_SR2_10FDX:
			priv->speed = 10;
			priv->duplexity = 1;
			break;
		case MIIM_LXT971_SR2_100HDX:
			priv->speed = 100;
			priv->duplexity = 0;
			break;
		default:
			priv->speed = 100;
			priv->duplexity = 1;
		}
	} else {
		priv->speed = 0;
		priv->duplexity = 0;
	}

	return 0;
}

static struct phy_info phy_info_lxt971 = {
	0x0001378e,
	"LXT971",
	4,
	(struct phy_cmd[]){	/* config */
			   {MIIM_CR, MIIM_CR_INIT, mii_cr_init},	/* autonegotiate */
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup - enable interrupts */
			   /* { 0x12, 0x00f2, NULL }, */
			   {MIIM_STATUS, miim_read, NULL},
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   {MIIM_LXT971_SR2, miim_read, &mii_parse_lxt971_sr2},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown - disable interrupts */
			   {miim_end,}
			   },
};

/* Parse the DP83865's link and auto-neg status register for speed and duplex
 * information
 */
uint mii_parse_dp83865_lanr(uint mii_reg, struct tsec_private *priv)
{
	switch (mii_reg & MIIM_DP83865_SPD_MASK) {

	case MIIM_DP83865_SPD_1000:
		priv->speed = 1000;
		break;

	case MIIM_DP83865_SPD_100:
		priv->speed = 100;
		break;

	default:
		priv->speed = 10;
		break;

	}

	if (mii_reg & MIIM_DP83865_DPX_FULL)
		priv->duplexity = 1;
	else
		priv->duplexity = 0;

	return 0;
}

struct phy_info phy_info_dp83865 = {
	0x20005c7,
	"NatSemi DP83865",
	4,
	(struct phy_cmd[]){	/* config */
			   {MIIM_CONTROL, MIIM_DP83865_CR_INIT, NULL},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* startup */
			   /* Status is read once to clear old link state */
			   {MIIM_STATUS, miim_read, NULL},
			   /* Auto-negotiate */
			   {MIIM_STATUS, miim_read, &mii_parse_sr},
			   /* Read the link and auto-neg status */
			   {MIIM_DP83865_LANR, miim_read,
			    &mii_parse_dp83865_lanr},
			   {miim_end,}
			   },
	(struct phy_cmd[]){	/* shutdown */
			   {miim_end,}
			   },
};

struct phy_info *phy_info[] = {
	&phy_info_cis8204,
	&phy_info_cis8201,
	&phy_info_BCM5461S,
	&phy_info_BCM5464S,
	&phy_info_M88E1011S,
	&phy_info_M88E1111S,
	&phy_info_M88E1145,
	&phy_info_M88E1149S,
	&phy_info_dm9161,
	&phy_info_lxt971,
	&phy_info_VSC8244,
	&phy_info_dp83865,
	&phy_info_generic,
	NULL
};

/* Grab the identifier of the device's PHY, and search through
 * all of the known PHYs to see if one matches.	 If so, return
 * it, if not, return NULL
 */
struct phy_info *get_phy_info(struct eth_device *dev)
{
	struct tsec_private *priv = (struct tsec_private *)dev->priv;
	uint phy_reg, phy_ID;
	int i;
	struct phy_info *theInfo = NULL;

	/* Grab the bits from PHYIR1, and put them in the upper half */
	phy_reg = read_phy_reg(priv, MIIM_PHYIR1);
	phy_ID = (phy_reg & 0xffff) << 16;

	/* Grab the bits from PHYIR2, and put them in the lower half */
	phy_reg = read_phy_reg(priv, MIIM_PHYIR2);
	phy_ID |= (phy_reg & 0xffff);

	/* loop through all the known PHY types, and find one that */
	/* matches the ID we read from the PHY. */
	for (i = 0; phy_info[i]; i++) {
		if (phy_info[i]->id == (phy_ID >> phy_info[i]->shift)) {
			theInfo = phy_info[i];
			break;
		}
	}

	if (theInfo == NULL) {
		printf("%s: PHY id %x is not supported!\n", dev->name, phy_ID);
		return NULL;
	} else {
		debug("%s: PHY is %s (%x)\n", dev->name, theInfo->name, phy_ID);
	}

	return theInfo;
}

/* Execute the given series of commands on the given device's
 * PHY, running functions as necessary
 */
void phy_run_commands(struct tsec_private *priv, struct phy_cmd *cmd)
{
	int i;
	uint result;
	volatile tsec_t *phyregs = priv->phyregs;

	phyregs->miimcfg = MIIMCFG_RESET;

	phyregs->miimcfg = MIIMCFG_INIT_VALUE;

	while (phyregs->miimind & MIIMIND_BUSY) ;

	for (i = 0; cmd->mii_reg != miim_end; i++) {
		if (cmd->mii_data == miim_read) {
			result = read_phy_reg(priv, cmd->mii_reg);

			if (cmd->funct != NULL)
				(*(cmd->funct)) (result, priv);

		} else {
			if (cmd->funct != NULL)
				result = (*(cmd->funct)) (cmd->mii_reg, priv);
			else
				result = cmd->mii_data;

			write_phy_reg(priv, cmd->mii_reg, result);

		}
		cmd++;
	}
}

/* Relocate the function pointers in the phy cmd lists */
static void relocate_cmds(void)
{
	struct phy_cmd **cmdlistptr;
	struct phy_cmd *cmd;
	int i, j, k;

	for (i = 0; phy_info[i]; i++) {
		/* First thing's first: relocate the pointers to the
		 * PHY command structures (the structs were done) */
		phy_info[i] = (struct phy_info *)((uint) phy_info[i]
						  + gd->reloc_off);
		phy_info[i]->name += gd->reloc_off;
		phy_info[i]->config =
		    (struct phy_cmd *)((uint) phy_info[i]->config
				       + gd->reloc_off);
		phy_info[i]->startup =
		    (struct phy_cmd *)((uint) phy_info[i]->startup
				       + gd->reloc_off);
		phy_info[i]->shutdown =
		    (struct phy_cmd *)((uint) phy_info[i]->shutdown
				       + gd->reloc_off);

		cmdlistptr = &phy_info[i]->config;
		j = 0;
		for (; cmdlistptr <= &phy_info[i]->shutdown; cmdlistptr++) {
			k = 0;
			for (cmd = *cmdlistptr;
			     cmd->mii_reg != miim_end;
			     cmd++) {
				/* Only relocate non-NULL pointers */
				if (cmd->funct)
					cmd->funct += gd->reloc_off;

				k++;
			}
			j++;
		}
	}

	relocated = 1;
}

#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
	&& !defined(BITBANGMII)

struct tsec_private *get_priv_for_phy(unsigned char phyaddr)
{
	int i;

	for (i = 0; i < MAXCONTROLLERS; i++) {
		if (privlist[i]->phyaddr == phyaddr)
			return privlist[i];
	}

	return NULL;
}

/*
 * Read a MII PHY register.
 *
 * Returns:
 *  0 on success
 */
static int tsec_miiphy_read(char *devname, unsigned char addr,
			    unsigned char reg, unsigned short *value)
{
	unsigned short ret;
	struct tsec_private *priv = get_priv_for_phy(addr);

	if (NULL == priv) {
		printf("Can't read PHY at address %d\n", addr);
		return -1;
	}

	ret = (unsigned short)read_phy_reg(priv, reg);
	*value = ret;

	return 0;
}

/*
 * Write a MII PHY register.
 *
 * Returns:
 *  0 on success
 */
static int tsec_miiphy_write(char *devname, unsigned char addr,
			     unsigned char reg, unsigned short value)
{
	struct tsec_private *priv = get_priv_for_phy(addr);

	if (NULL == priv) {
		printf("Can't write PHY at address %d\n", addr);
		return -1;
	}

	write_phy_reg(priv, reg, value);

	return 0;
}

#endif

#ifdef CONFIG_MCAST_TFTP

/* CREDITS: linux gianfar driver, slightly adjusted... thanx. */

/* Set the appropriate hash bit for the given addr */

/* The algorithm works like so:
 * 1) Take the Destination Address (ie the multicast address), and
 * do a CRC on it (little endian), and reverse the bits of the
 * result.
 * 2) Use the 8 most significant bits as a hash into a 256-entry
 * table.  The table is controlled through 8 32-bit registers:
 * gaddr0-7.  gaddr0's MSB is entry 0, and gaddr7's LSB is
 * gaddr7.  This means that the 3 most significant bits in the
 * hash index which gaddr register to use, and the 5 other bits
 * indicate which bit (assuming an IBM numbering scheme, which
 * for PowerPC (tm) is usually the case) in the tregister holds
 * the entry. */
static int
tsec_mcast_addr (struct eth_device *dev, u8 mcast_mac, u8 set)
{
 struct tsec_private *priv = privlist[1];
 volatile tsec_t *regs = priv->regs;
 volatile u32  *reg_array, value;
 u8 result, whichbit, whichreg;

	result = (u8)((ether_crc(MAC_ADDR_LEN,mcast_mac) >> 24) & 0xff);
	whichbit = result & 0x1f;	/* the 5 LSB = which bit to set */
	whichreg = result >> 5;		/* the 3 MSB = which reg to set it in */
	value = (1 << (31-whichbit));

	reg_array = &(regs->hash.gaddr0);

	if (set) {
		reg_array[whichreg] |= value;
	} else {
		reg_array[whichreg] &= ~value;
	}
	return 0;
}
#endif /* Multicast TFTP ? */

#endif /* CONFIG_TSEC_ENET */