mcffec.c

U-boot源码 ARM7启动代码

	       fecp->rmon_t_jab);
	printf("rmon_t_col         %x - %x\n", (int)&fecp->rmon_t_col,
	       fecp->rmon_t_col);
	printf("rmon_t_p64         %x - %x\n", (int)&fecp->rmon_t_p64,
	       fecp->rmon_t_p64);
	printf("rmon_t_p65to127    %x - %x\n", (int)&fecp->rmon_t_p65to127,
	       fecp->rmon_t_p65to127);
	printf("rmon_t_p128to255   %x - %x\n", (int)&fecp->rmon_t_p128to255,
	       fecp->rmon_t_p128to255);
	printf("rmon_t_p256to511   %x - %x\n", (int)&fecp->rmon_t_p256to511,
	       fecp->rmon_t_p256to511);
	printf("rmon_t_p512to1023  %x - %x\n", (int)&fecp->rmon_t_p512to1023,
	       fecp->rmon_t_p512to1023);
	printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
	       fecp->rmon_t_p1024to2047);
	printf("rmon_t_p_gte2048   %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
	       fecp->rmon_t_p_gte2048);
	printf("rmon_t_octets      %x - %x\n", (int)&fecp->rmon_t_octets,
	       fecp->rmon_t_octets);

	printf("\n");
	printf("ieee_t_drop      %x - %x\n", (int)&fecp->ieee_t_drop,
	       fecp->ieee_t_drop);
	printf("ieee_t_frame_ok  %x - %x\n", (int)&fecp->ieee_t_frame_ok,
	       fecp->ieee_t_frame_ok);
	printf("ieee_t_1col      %x - %x\n", (int)&fecp->ieee_t_1col,
	       fecp->ieee_t_1col);
	printf("ieee_t_mcol      %x - %x\n", (int)&fecp->ieee_t_mcol,
	       fecp->ieee_t_mcol);
	printf("ieee_t_def       %x - %x\n", (int)&fecp->ieee_t_def,
	       fecp->ieee_t_def);
	printf("ieee_t_lcol      %x - %x\n", (int)&fecp->ieee_t_lcol,
	       fecp->ieee_t_lcol);
	printf("ieee_t_excol     %x - %x\n", (int)&fecp->ieee_t_excol,
	       fecp->ieee_t_excol);
	printf("ieee_t_macerr    %x - %x\n", (int)&fecp->ieee_t_macerr,
	       fecp->ieee_t_macerr);
	printf("ieee_t_cserr     %x - %x\n", (int)&fecp->ieee_t_cserr,
	       fecp->ieee_t_cserr);
	printf("ieee_t_sqe       %x - %x\n", (int)&fecp->ieee_t_sqe,
	       fecp->ieee_t_sqe);
	printf("ieee_t_fdxfc     %x - %x\n", (int)&fecp->ieee_t_fdxfc,
	       fecp->ieee_t_fdxfc);
	printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
	       fecp->ieee_t_octets_ok);

	printf("\n");
	printf("rmon_r_drop        %x - %x\n", (int)&fecp->rmon_r_drop,
	       fecp->rmon_r_drop);
	printf("rmon_r_packets     %x - %x\n", (int)&fecp->rmon_r_packets,
	       fecp->rmon_r_packets);
	printf("rmon_r_bc_pkt      %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
	       fecp->rmon_r_bc_pkt);
	printf("rmon_r_mc_pkt      %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
	       fecp->rmon_r_mc_pkt);
	printf("rmon_r_crc_align   %x - %x\n", (int)&fecp->rmon_r_crc_align,
	       fecp->rmon_r_crc_align);
	printf("rmon_r_undersize   %x - %x\n", (int)&fecp->rmon_r_undersize,
	       fecp->rmon_r_undersize);
	printf("rmon_r_oversize    %x - %x\n", (int)&fecp->rmon_r_oversize,
	       fecp->rmon_r_oversize);
	printf("rmon_r_frag        %x - %x\n", (int)&fecp->rmon_r_frag,
	       fecp->rmon_r_frag);
	printf("rmon_r_jab         %x - %x\n", (int)&fecp->rmon_r_jab,
	       fecp->rmon_r_jab);
	printf("rmon_r_p64         %x - %x\n", (int)&fecp->rmon_r_p64,
	       fecp->rmon_r_p64);
	printf("rmon_r_p65to127    %x - %x\n", (int)&fecp->rmon_r_p65to127,
	       fecp->rmon_r_p65to127);
	printf("rmon_r_p128to255   %x - %x\n", (int)&fecp->rmon_r_p128to255,
	       fecp->rmon_r_p128to255);
	printf("rmon_r_p256to511   %x - %x\n", (int)&fecp->rmon_r_p256to511,
	       fecp->rmon_r_p256to511);
	printf("rmon_r_p512to1023  %x - %x\n", (int)&fecp->rmon_r_p512to1023,
	       fecp->rmon_r_p512to1023);
	printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
	       fecp->rmon_r_p1024to2047);
	printf("rmon_r_p_gte2048   %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
	       fecp->rmon_r_p_gte2048);
	printf("rmon_r_octets      %x - %x\n", (int)&fecp->rmon_r_octets,
	       fecp->rmon_r_octets);

	printf("\n");
	printf("ieee_r_drop      %x - %x\n", (int)&fecp->ieee_r_drop,
	       fecp->ieee_r_drop);
	printf("ieee_r_frame_ok  %x - %x\n", (int)&fecp->ieee_r_frame_ok,
	       fecp->ieee_r_frame_ok);
	printf("ieee_r_crc       %x - %x\n", (int)&fecp->ieee_r_crc,
	       fecp->ieee_r_crc);
	printf("ieee_r_align     %x - %x\n", (int)&fecp->ieee_r_align,
	       fecp->ieee_r_align);
	printf("ieee_r_macerr    %x - %x\n", (int)&fecp->ieee_r_macerr,
	       fecp->ieee_r_macerr);
	printf("ieee_r_fdxfc     %x - %x\n", (int)&fecp->ieee_r_fdxfc,
	       fecp->ieee_r_fdxfc);
	printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
	       fecp->ieee_r_octets_ok);

	printf("\n\n\n");
}
#endif

int fec_init(struct eth_device *dev, bd_t * bd)
{
	struct fec_info_s *info = dev->priv;
	volatile fec_t *fecp = (fec_t *) (info->iobase);
	int i;
	u8 *ea = NULL;

	fecpin_setclear(dev, 1);

	fec_reset(dev);

#if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
	defined (CFG_DISCOVER_PHY)

	mii_init();

	setFecDuplexSpeed(fecp, bd, info->dup_spd);
#else
#ifndef CFG_DISCOVER_PHY
	setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
#endif				/* ifndef CFG_DISCOVER_PHY */
#endif				/* CONFIG_CMD_MII || CONFIG_MII */

	/* We use strictly polling mode only */
	fecp->eimr = 0;

	/* Clear any pending interrupt */
	fecp->eir = 0xffffffff;

	/* Set station address   */
	if ((u32) fecp == CFG_FEC0_IOBASE) {
#ifdef CFG_FEC1_IOBASE
		volatile fec_t *fecp1 = (fec_t *) (CFG_FEC1_IOBASE);
		ea = &bd->bi_enet1addr[0];
		fecp1->palr =
		    (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
		fecp1->paur = (ea[4] << 24) | (ea[5] << 16);
#endif
		ea = &bd->bi_enetaddr[0];
		fecp->palr =
		    (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
		fecp->paur = (ea[4] << 24) | (ea[5] << 16);
	} else {
#ifdef CFG_FEC0_IOBASE
		volatile fec_t *fecp0 = (fec_t *) (CFG_FEC0_IOBASE);
		ea = &bd->bi_enetaddr[0];
		fecp0->palr =
		    (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
		fecp0->paur = (ea[4] << 24) | (ea[5] << 16);
#endif
#ifdef CFG_FEC1_IOBASE
		ea = &bd->bi_enet1addr[0];
		fecp->palr =
		    (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
		fecp->paur = (ea[4] << 24) | (ea[5] << 16);
#endif
	}

	/* Clear unicast address hash table */
	fecp->iaur = 0;
	fecp->ialr = 0;

	/* Clear multicast address hash table */
	fecp->gaur = 0;
	fecp->galr = 0;

	/* Set maximum receive buffer size. */
	fecp->emrbr = PKT_MAXBLR_SIZE;

	/*
	 * Setup Buffers and Buffer Desriptors
	 */
	info->rxIdx = 0;
	info->txIdx = 0;

	/*
	 * Setup Receiver Buffer Descriptors (13.14.24.18)
	 * Settings:
	 *     Empty, Wrap
	 */
	for (i = 0; i < PKTBUFSRX; i++) {
		info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
		info->rxbd[i].cbd_datlen = 0;	/* Reset */
		info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
	}
	info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;

	/*
	 * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
	 * Settings:
	 *    Last, Tx CRC
	 */
	for (i = 0; i < TX_BUF_CNT; i++) {
		info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
		info->txbd[i].cbd_datlen = 0;	/* Reset */
		info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
	}
	info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;

	/* Set receive and transmit descriptor base */
	fecp->erdsr = (unsigned int)(&info->rxbd[0]);
	fecp->etdsr = (unsigned int)(&info->txbd[0]);

	/* Now enable the transmit and receive processing */
	fecp->ecr |= FEC_ECR_ETHER_EN;

	/* And last, try to fill Rx Buffer Descriptors */
	fecp->rdar = 0x01000000;	/* Descriptor polling active    */

	return 1;
}

void fec_reset(struct eth_device *dev)
{
	struct fec_info_s *info = dev->priv;
	volatile fec_t *fecp = (fec_t *) (info->iobase);
	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");
	}
}

void fec_halt(struct eth_device *dev)
{
	struct fec_info_s *info = dev->priv;

	fec_reset(dev);

	fecpin_setclear(dev, 0);

	info->rxIdx = info->txIdx = 0;
	memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
	memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
	memset(info->txbuf, 0, DBUF_LENGTH);
}

int mcffec_initialize(bd_t * bis)
{
	struct eth_device *dev;
	int i;

	for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {

		dev =
		    (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
						  sizeof *dev);
		if (dev == NULL)
			hang();

		memset(dev, 0, sizeof(*dev));

		sprintf(dev->name, "FEC%d", fec_info[i].index);

		dev->priv = &fec_info[i];
		dev->init = fec_init;
		dev->halt = fec_halt;
		dev->send = fec_send;
		dev->recv = fec_recv;

		/* setup Receive and Transmit buffer descriptor */
		fec_info[i].rxbd =
		    (cbd_t *) memalign(CFG_CACHELINE_SIZE,
				       (PKTBUFSRX * sizeof(cbd_t)));
		fec_info[i].txbd =
		    (cbd_t *) memalign(CFG_CACHELINE_SIZE,
				       (TX_BUF_CNT * sizeof(cbd_t)));
		fec_info[i].txbuf =
		    (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
#ifdef ET_DEBUG
		printf("rxbd %x txbd %x\n",
		       (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
#endif

		fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);

		eth_register(dev);

#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
		miiphy_register(dev->name,
				mcffec_miiphy_read, mcffec_miiphy_write);
#endif
	}

	/* default speed */
	bis->bi_ethspeed = 10;

	return 1;
}

#endif				/* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
#endif				/* CONFIG_MCFFEC */