1 /*------------------------------------------------------------------------
3  . This is a driver for SMSC's 91C111 single-chip Ethernet device.
6  . Sysgo Real-Time Solutions, GmbH <www.elinos.com>
13  * SPDX-License-Identifier:	GPL-2.0+
43  .	06/19/03  Richard Woodruff Made u-boot environment aware and added mac addr checks.
48  ----------------------------------------------------------------------------*/
57 /* Use power-down feature of the chip */
74 /*------------------------------------------------------------------------
78  -------------------------------------------------------------------------*/
107 /*------------------------------------------------------------------------
113  -------------------------------------------------------------------------*/
149  ------------------------------------------------------------
153  ------------------------------------------------------------
172 	v = *((volatile word*)(dev->iobase + offset));  in SMC_inw()
179 	*((volatile word*)(dev->iobase + offset)) = value;  in SMC_outw()
197 		*((volatile word*)(dev->iobase + (offset & ~((dword)1)))) =  in SMC_outb()
200 		*((volatile word*)(dev->iobase + offset)) =  in SMC_outb()
209 	while (len-- > 0) {  in SMC_insw()
221 	while (len-- > 0) {  in SMC_outsw()
313 	/* Release from possible power-down state */  in smc_reset()
331 	/* Reset the MMU */  in smc_reset()
338 	/* Note:  It doesn't seem that waiting for the MMU busy is needed here,  in smc_reset()
340 	   of issuing another MMU command right after this */  in smc_reset()
437 	 ** The MMU wants the number of pages to be the number of 256 bytes  in smc_send()
464 	 * -ro  in smc_send()
477 	} while (--time_out);  in smc_send()
549 		SMC_outw (dev, buf[length - 1] | 0x2000, SMC91111_DATA_REG);  in smc_send()
557 	/* poll for TX_EMPTY INT - autorelease enabled */  in smc_send()
563 		/* no need to release, MMU does that now */  in smc_send()
565 		/* wait for MMU getting ready (low) */  in smc_send()
570 		PRINTK2 ("MMU ready\n");  in smc_send()
582 		/* no need to release, MMU does that now */  in smc_send()
584 		/* wait for MMU getting ready (low) */  in smc_send()
589 		PRINTK2 ("MMU ready\n");  in smc_send()
611 		address = dev->enetaddr[i + 1] << 8;  in smc_write_hwaddr()
612 		address |= dev->enetaddr[i];  in smc_write_hwaddr()
617 		SMC_outb(dev, dev->enetaddr[i], (ADDR0_REG + i));  in smc_write_hwaddr()
648 	printf(SMC_DEV_NAME ": MAC %pM\n", dev->enetaddr);  in smc_init()
653 /*-------------------------------------------------------------
655  . smc_rcv -  receive a packet from the card
658  . chip-memory.
663  --------------------------------------------------------------
709 		packet_length -= 4; /*4; */  in smc_rcv()
779 /*------------------------------------------------------------
781  .-------------------------------------------------------------*/
800 /*------------------------------------------------------------
802  .-------------------------------------------------------------*/
813 /*------------------------------------------------------------
815  .-------------------------------------------------------------*/
823 /*------------------------------------------------------------
825  .-------------------------------------------------------------*/
834 /*---PHY CONTROL AND CONFIGURATION----------------------------------------- */
838 /*------------------------------------------------------------
840  .-------------------------------------------------------------*/
878 /*------------------------------------------------------------
880  .-------------------------------------------------------------*/
958 		/* Clock Low - output data */  in smc_read_phy_register()
963 		/* Clock Hi - input data */  in smc_read_phy_register()
996 /*------------------------------------------------------------
998  .-------------------------------------------------------------*/
1079 		/* Clock Low - output data */  in smc_write_phy_register()
1084 		/* Clock Hi - input data */  in smc_write_phy_register()
1107 /*------------------------------------------------------------
1110  .-------------------------------------------------------------*/
1126 	while (timeout--) {  in smc_phy_configure()
1133 		mdelay(500);	/* wait 500 millisecs */  in smc_phy_configure()
1142 	/* lp->lastPhy18 = smc_read_phy_register(PHY_INT_REG); */  in smc_phy_configure()
1171 	/* Update our Auto-Neg Advertisement Register */  in smc_phy_configure()
1175 	/* auto-negotiation is restarted, sometimes it isn't ready and */  in smc_phy_configure()
1182 	/* Restart auto-negotiation process in order to advertise my caps */  in smc_phy_configure()
1186 	/* Wait for the auto-negotiation to complete.  This may take from */  in smc_phy_configure()
1190 	while (timeout--) {  in smc_phy_configure()
1194 			/* auto-negotiate complete */  in smc_phy_configure()
1198 		mdelay(500);	/* wait 500 millisecs */  in smc_phy_configure()
1200 		/* Restart auto-negotiation if remote fault */  in smc_phy_configure()
1205 			/* Restart auto-negotiation */  in smc_phy_configure()
1206 			printf ("%s: PHY restarting auto-negotiation\n",  in smc_phy_configure()
1217 		printf ("%s: PHY auto-negotiate timed out\n", SMC_DEV_NAME);  in smc_phy_configure()
1220 	/* Fail if we detected an auto-negotiate remote fault */  in smc_phy_configure()
1225 	/* Re-Configure the Receive/Phy Control register */  in smc_phy_configure()
1287 	priv->dev_num = dev_num;  in smc91111_initialize()
1288 	dev->priv = priv;  in smc91111_initialize()
1289 	dev->iobase = base_addr;  in smc91111_initialize()
1294 		dev->enetaddr[i] = SMC_inb(dev, (ADDR0_REG + i));  in smc91111_initialize()
1297 	dev->init = smc_init;  in smc91111_initialize()
1298 	dev->halt = smc_halt;  in smc91111_initialize()
1299 	dev->send = smc_send;  in smc91111_initialize()
1300 	dev->recv = smc_rcv;  in smc91111_initialize()
1301 	dev->write_hwaddr = smc_write_hwaddr;  in smc91111_initialize()
1302 	sprintf(dev->name, "%s-%hu", SMC_DEV_NAME, dev_num);  in smc91111_initialize()