net/Blackfin: move on-chip MAC driver into drivers/net/

The Blackfin on-chip MAC driver was being managed in the BF537-STAMP board
directory, but it is not board specific, so relocate it to the drivers dir
so that other Blackfin ports can utilize it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 0 insertions, 549 deletions

diff --git a/board/bf537-stamp/ether_bf537.c b/board/bf537-stamp/ether_bf537.c
deleted file mode 100644
index 6c514c6..0000000
--- a/board/bf537-stamp/ether_bf537.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- * ADI Blackfin 537 MAC Ethernet
- *
- * Copyright (c) 2005 Analog Device, Inc.
- *
- * 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 <asm/blackfin.h>
-#include <net.h>
-#include <command.h>
-#include <malloc.h>
-#include "ether_bf537.h"
-
-#include <asm/mach-common/bits/dma.h>
-#include <asm/mach-common/bits/emac.h>
-#include <asm/mach-common/bits/pll.h>
-
-#ifdef CONFIG_POST
-#include <post.h>
-#endif
-
-#undef DEBUG_ETHERNET
-
-#ifdef DEBUG_ETHERNET
-#define DEBUGF(fmt,args...) printf(fmt,##args)
-#else
-#define DEBUGF(fmt,args...)
-#endif
-
-#if defined(CONFIG_CMD_NET)
-
-#define RXBUF_BASE_ADDR		0xFF900000
-#define TXBUF_BASE_ADDR		0xFF800000
-#define TX_BUF_CNT		1
-
-#define TOUT_LOOP		1000000
-
-ADI_ETHER_BUFFER *txbuf[TX_BUF_CNT];
-ADI_ETHER_BUFFER *rxbuf[PKTBUFSRX];
-static u16 txIdx;		/* index of the current RX buffer */
-static u16 rxIdx;		/* index of the current TX buffer */
-
-u8 SrcAddr[6];
-u16 PHYregs[NO_PHY_REGS];	/* u16 PHYADDR; */
-
-/* DMAx_CONFIG values at DMA Restart */
-const ADI_DMA_CONFIG_REG rxdmacfg = { 1, 1, 2, 0, 0, 0, 0, 5, 7 };
-
-#if 0
-	rxdmacfg.b_DMA_EN = 1;	/* enabled */
-	rxdmacfg.b_WNR    = 1;	/* write to memory */
-	rxdmacfg.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	rxdmacfg.b_DMA2D  = 0;	/* N/A */
-	rxdmacfg.b_RESTART= 0;	/* N/A */
-	rxdmacfg.b_DI_SEL = 0;	/* N/A */
-	rxdmacfg.b_DI_EN  = 0;	/* no interrupt */
-	rxdmacfg.b_NDSIZE = 5;	/* 5 half words is desc size. */
-	rxdmacfg.b_FLOW   = 7;	/* large desc flow  */
-#endif
-
-const ADI_DMA_CONFIG_REG txdmacfg = { 1, 0, 2, 0, 0, 0, 0, 5, 7 };
-
-#if 0
-	txdmacfg.b_DMA_EN = 1;	/* enabled */
-	txdmacfg.b_WNR    = 0;	/* read from memory */
-	txdmacfg.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	txdmacfg.b_DMA2D  = 0;	/* N/A */
-	txdmacfg.b_RESTART= 0;	/* N/A */
-	txdmacfg.b_DI_SEL = 0;	/* N/A */
-	txdmacfg.b_DI_EN  = 0;	/* no interrupt */
-	txdmacfg.b_NDSIZE = 5;	/* 5 half words is desc size. */
-	txdmacfg.b_FLOW   = 7;	/* large desc flow */
-#endif
-
-ADI_ETHER_BUFFER *SetupRxBuffer(int no);
-ADI_ETHER_BUFFER *SetupTxBuffer(int no);
-
-static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd);
-static void bfin_EMAC_halt(struct eth_device *dev);
-static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
-			  int length);
-static int bfin_EMAC_recv(struct eth_device *dev);
-
-int bfin_EMAC_initialize(bd_t * bis)
-{
-	struct eth_device *dev;
-	dev = (struct eth_device *)malloc(sizeof(*dev));
-	if (dev == NULL)
-		hang();
-
-	memset(dev, 0, sizeof(*dev));
-	sprintf(dev->name, "BF537 ETHERNET");
-
-	dev->iobase = 0;
-	dev->priv = 0;
-	dev->init = bfin_EMAC_init;
-	dev->halt = bfin_EMAC_halt;
-	dev->send = bfin_EMAC_send;
-	dev->recv = bfin_EMAC_recv;
-
-	eth_register(dev);
-
-	return 1;
-}
-
-static int bfin_EMAC_send(struct eth_device *dev, volatile void *packet,
-			  int length)
-{
-	int i;
-	int result = 0;
-	unsigned int *buf;
-	buf = (unsigned int *)packet;
-
-	if (length <= 0) {
-		printf("Ethernet: bad packet size: %d\n", length);
-		goto out;
-	}
-
-	if ((*pDMA2_IRQ_STATUS & DMA_ERR) != 0) {
-		printf("Ethernet: tx DMA error\n");
-		goto out;
-	}
-
-	for (i = 0; (*pDMA2_IRQ_STATUS & DMA_RUN) != 0; i++) {
-		if (i > TOUT_LOOP) {
-			puts("Ethernet: tx time out\n");
-			goto out;
-		}
-	}
-	txbuf[txIdx]->FrmData->NoBytes = length;
-	memcpy(txbuf[txIdx]->FrmData->Dest, (void *)packet, length);
-	txbuf[txIdx]->Dma[0].START_ADDR = (u32) txbuf[txIdx]->FrmData;
-	*pDMA2_NEXT_DESC_PTR = &txbuf[txIdx]->Dma[0];
-	*pDMA2_CONFIG = *(u16 *) (void *)(&txdmacfg);
-	*pEMAC_OPMODE |= TE;
-
-	for (i = 0; (txbuf[txIdx]->StatusWord & TX_COMP) == 0; i++) {
-		if (i > TOUT_LOOP) {
-			puts("Ethernet: tx error\n");
-			goto out;
-		}
-	}
-	result = txbuf[txIdx]->StatusWord;
-	txbuf[txIdx]->StatusWord = 0;
-	if ((txIdx + 1) >= TX_BUF_CNT)
-		txIdx = 0;
-	else
-		txIdx++;
-      out:
-	DEBUGF("BFIN EMAC send: length = %d\n", length);
-	return result;
-}
-
-static int bfin_EMAC_recv(struct eth_device *dev)
-{
-	int length = 0;
-
-	for (;;) {
-		if ((rxbuf[rxIdx]->StatusWord & RX_COMP) == 0) {
-			length = -1;
-			break;
-		}
-		if ((rxbuf[rxIdx]->StatusWord & RX_DMAO) != 0) {
-			printf("Ethernet: rx dma overrun\n");
-			break;
-		}
-		if ((rxbuf[rxIdx]->StatusWord & RX_OK) == 0) {
-			printf("Ethernet: rx error\n");
-			break;
-		}
-		length = rxbuf[rxIdx]->StatusWord & 0x000007FF;
-		if (length <= 4) {
-			printf("Ethernet: bad frame\n");
-			break;
-		}
-		NetRxPackets[rxIdx] =
-		    (volatile uchar *)(rxbuf[rxIdx]->FrmData->Dest);
-		NetReceive(NetRxPackets[rxIdx], length - 4);
-		*pDMA1_IRQ_STATUS |= DMA_DONE | DMA_ERR;
-		rxbuf[rxIdx]->StatusWord = 0x00000000;
-		if ((rxIdx + 1) >= PKTBUFSRX)
-			rxIdx = 0;
-		else
-			rxIdx++;
-	}
-
-	return length;
-}
-
-/**************************************************************
- *
- * Ethernet Initialization Routine
- *
- *************************************************************/
-
-static int bfin_EMAC_init(struct eth_device *dev, bd_t * bd)
-{
-	u32 opmode;
-	int dat;
-	int i;
-	DEBUGF("Eth_init: ......\n");
-
-	txIdx = 0;
-	rxIdx = 0;
-
-/* Initialize System Register */
-	if (SetupSystemRegs(&dat) < 0)
-		return -1;
-
-/* Initialize EMAC address */
-	SetupMacAddr(SrcAddr);
-
-/* Initialize TX and RX buffer */
-	for (i = 0; i < PKTBUFSRX; i++) {
-		rxbuf[i] = SetupRxBuffer(i);
-		if (i > 0) {
-			rxbuf[i - 1]->Dma[1].NEXT_DESC_PTR =
-			    &(rxbuf[i]->Dma[0]);
-			if (i == (PKTBUFSRX - 1))
-				rxbuf[i]->Dma[1].NEXT_DESC_PTR =
-				    &(rxbuf[0]->Dma[0]);
-		}
-	}
-	for (i = 0; i < TX_BUF_CNT; i++) {
-		txbuf[i] = SetupTxBuffer(i);
-		if (i > 0) {
-			txbuf[i - 1]->Dma[1].NEXT_DESC_PTR =
-			    &(txbuf[i]->Dma[0]);
-			if (i == (TX_BUF_CNT - 1))
-				txbuf[i]->Dma[1].NEXT_DESC_PTR =
-				    &(txbuf[0]->Dma[0]);
-		}
-	}
-
-	/* Set RX DMA */
-	*pDMA1_NEXT_DESC_PTR = &rxbuf[0]->Dma[0];
-	*pDMA1_CONFIG = *((u16 *) (void *)&rxbuf[0]->Dma[0].CONFIG);
-
-	/* Wait MII done */
-	PollMdcDone();
-
-	/* We enable only RX here */
-	/* ASTP   : Enable Automatic Pad Stripping
-	   PR     : Promiscuous Mode for test
-	   PSF    : Receive frames with total length less than 64 bytes.
-	   FDMODE : Full Duplex Mode
-	   LB	  : Internal Loopback for test
-	   RE     : Receiver Enable */
-	if (dat == FDMODE)
-		opmode = ASTP | FDMODE | PSF;
-	else
-		opmode = ASTP | PSF;
-	opmode |= RE;
-#ifdef CONFIG_BFIN_MAC_RMII
-	opmode |= TE | RMII;
-#endif
-	/* Turn on the EMAC */
-	*pEMAC_OPMODE = opmode;
-	return 0;
-}
-
-static void bfin_EMAC_halt(struct eth_device *dev)
-{
-	DEBUGF("Eth_halt: ......\n");
-	/* Turn off the EMAC */
-	*pEMAC_OPMODE = 0x00000000;
-	/* Turn off the EMAC RX DMA */
-	*pDMA1_CONFIG = 0x0000;
-	*pDMA2_CONFIG = 0x0000;
-
-}
-
-void SetupMacAddr(u8 * MACaddr)
-{
-	char *tmp, *end;
-	int i;
-	/* this depends on a little-endian machine */
-	tmp = getenv("ethaddr");
-	if (tmp) {
-		for (i = 0; i < 6; i++) {
-			MACaddr[i] = tmp ? simple_strtoul(tmp, &end, 16) : 0;
-			if (tmp)
-				tmp = (*end) ? end + 1 : end;
-		}
-
-#ifndef CONFIG_NETCONSOLE
-		printf("Using MAC Address %02X:%02X:%02X:%02X:%02X:%02X\n",
-		       MACaddr[0], MACaddr[1],
-		       MACaddr[2], MACaddr[3], MACaddr[4], MACaddr[5]);
-#endif
-		*pEMAC_ADDRLO = MACaddr[0] | MACaddr[1] << 8 |
-		    MACaddr[2] << 16 | MACaddr[3] << 24;
-		*pEMAC_ADDRHI = MACaddr[4] | MACaddr[5] << 8;
-	}
-}
-
-void PollMdcDone(void)
-{
-	/* poll the STABUSY bit */
-	while (*pEMAC_STAADD & STABUSY) ;
-}
-
-void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data)
-{
-	PollMdcDone();
-
-	*pEMAC_STADAT = Data;
-
-	*pEMAC_STAADD = SET_PHYAD(PHYAddr) | SET_REGAD(RegAddr) |
-	    STAOP | STAIE | STABUSY;
-}
-
-/*********************************************************************************
- *		Read an off-chip register in a PHY through the MDC/MDIO port     *
- *********************************************************************************/
-u16 RdPHYReg(u16 PHYAddr, u16 RegAddr)
-{
-	u16 Data;
-
-	PollMdcDone();
-
-	*pEMAC_STAADD = SET_PHYAD(PHYAddr) | SET_REGAD(RegAddr) |
-	    STAIE | STABUSY;
-
-	PollMdcDone();
-
-	Data = (u16) * pEMAC_STADAT;
-
-	PHYregs[RegAddr] = Data;	/* save shadow copy */
-
-	return Data;
-}
-
-void SoftResetPHY(void)
-{
-	u16 phydat;
-	/* set the reset bit */
-	WrPHYReg(PHYADDR, PHY_MODECTL, PHY_RESET);
-	/* and clear it again */
-	WrPHYReg(PHYADDR, PHY_MODECTL, 0x0000);
-	do {
-		/* poll until reset is complete */
-		phydat = RdPHYReg(PHYADDR, PHY_MODECTL);
-	} while ((phydat & PHY_RESET) != 0);
-}
-
-int SetupSystemRegs(int *opmode)
-{
-	u16 sysctl, phydat;
-	int count = 0;
-	/* Enable PHY output */
-	*pVR_CTL |= CLKBUFOE;
-	/* MDC  = 2.5 MHz */
-	sysctl = SET_MDCDIV(24);
-	/* Odd word alignment for Receive Frame DMA word */
-	/* Configure checksum support and rcve frame word alignment */
-	sysctl |= RXDWA | RXCKS;
-	*pEMAC_SYSCTL = sysctl;
-	/* auto negotiation on  */
-	/* full duplex */
-	/* 100 Mbps */
-	phydat = PHY_ANEG_EN | PHY_DUPLEX | PHY_SPD_SET;
-	WrPHYReg(PHYADDR, PHY_MODECTL, phydat);
-	do {
-		udelay(1000);
-		phydat = RdPHYReg(PHYADDR, PHY_MODESTAT);
-		if (count > 3000) {
-			printf
-			    ("Link is down, please check your network connection\n");
-			return -1;
-		}
-		count++;
-	} while (!(phydat & 0x0004));
-
-	phydat = RdPHYReg(PHYADDR, PHY_ANLPAR);
-
-	if ((phydat & 0x0100) || (phydat & 0x0040))
-		*opmode = FDMODE;
-	else
-		*opmode = 0;
-
-	*pEMAC_MMC_CTL = RSTC | CROLL;
-
-	/* Initialize the TX DMA channel registers */
-	*pDMA2_X_COUNT = 0;
-	*pDMA2_X_MODIFY = 4;
-	*pDMA2_Y_COUNT = 0;
-	*pDMA2_Y_MODIFY = 0;
-
-	/* Initialize the RX DMA channel registers */
-	*pDMA1_X_COUNT = 0;
-	*pDMA1_X_MODIFY = 4;
-	*pDMA1_Y_COUNT = 0;
-	*pDMA1_Y_MODIFY = 0;
-	return 0;
-}
-
-ADI_ETHER_BUFFER *SetupRxBuffer(int no)
-{
-	ADI_ETHER_FRAME_BUFFER *frmbuf;
-	ADI_ETHER_BUFFER *buf;
-	int nobytes_buffer = sizeof(ADI_ETHER_BUFFER[2]) / 2;	/* ensure a multi. of 4 */
-	int total_size = nobytes_buffer + RECV_BUFSIZE;
-
-	buf = (ADI_ETHER_BUFFER *) (RXBUF_BASE_ADDR + no * total_size);
-	frmbuf =
-	    (ADI_ETHER_FRAME_BUFFER *) (RXBUF_BASE_ADDR + no * total_size +
-					nobytes_buffer);
-
-	memset(buf, 0x00, nobytes_buffer);
-	buf->FrmData = frmbuf;
-	memset(frmbuf, 0xfe, RECV_BUFSIZE);
-
-	/* set up first desc to point to receive frame buffer */
-	buf->Dma[0].NEXT_DESC_PTR = &(buf->Dma[1]);
-	buf->Dma[0].START_ADDR = (u32) buf->FrmData;
-	buf->Dma[0].CONFIG.b_DMA_EN = 1;	/* enabled */
-	buf->Dma[0].CONFIG.b_WNR = 1;	/* Write to memory */
-	buf->Dma[0].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	buf->Dma[0].CONFIG.b_NDSIZE = 5;	/* 5 half words is desc size. */
-	buf->Dma[0].CONFIG.b_FLOW = 7;	/* large desc flow */
-
-	/* set up second desc to point to status word */
-	buf->Dma[1].NEXT_DESC_PTR = &(buf->Dma[0]);
-	buf->Dma[1].START_ADDR = (u32) & buf->IPHdrChksum;
-	buf->Dma[1].CONFIG.b_DMA_EN = 1;	/* enabled */
-	buf->Dma[1].CONFIG.b_WNR = 1;	/* Write to memory */
-	buf->Dma[1].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	buf->Dma[1].CONFIG.b_DI_EN = 1;	/* enable interrupt */
-	buf->Dma[1].CONFIG.b_NDSIZE = 5;	/* must be 0 when FLOW is 0 */
-	buf->Dma[1].CONFIG.b_FLOW = 7;	/* stop */
-
-	return buf;
-}
-
-ADI_ETHER_BUFFER *SetupTxBuffer(int no)
-{
-	ADI_ETHER_FRAME_BUFFER *frmbuf;
-	ADI_ETHER_BUFFER *buf;
-	int nobytes_buffer = sizeof(ADI_ETHER_BUFFER[2]) / 2;	/* ensure a multi. of 4 */
-	int total_size = nobytes_buffer + RECV_BUFSIZE;
-
-	buf = (ADI_ETHER_BUFFER *) (TXBUF_BASE_ADDR + no * total_size);
-	frmbuf =
-	    (ADI_ETHER_FRAME_BUFFER *) (TXBUF_BASE_ADDR + no * total_size +
-					nobytes_buffer);
-
-	memset(buf, 0x00, nobytes_buffer);
-	buf->FrmData = frmbuf;
-	memset(frmbuf, 0x00, RECV_BUFSIZE);
-
-	/* set up first desc to point to receive frame buffer */
-	buf->Dma[0].NEXT_DESC_PTR = &(buf->Dma[1]);
-	buf->Dma[0].START_ADDR = (u32) buf->FrmData;
-	buf->Dma[0].CONFIG.b_DMA_EN = 1;	/* enabled */
-	buf->Dma[0].CONFIG.b_WNR = 0;	/* Read to memory */
-	buf->Dma[0].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	buf->Dma[0].CONFIG.b_NDSIZE = 5;	/* 5 half words is desc size. */
-	buf->Dma[0].CONFIG.b_FLOW = 7;	/* large desc flow */
-
-	/* set up second desc to point to status word */
-	buf->Dma[1].NEXT_DESC_PTR = &(buf->Dma[0]);
-	buf->Dma[1].START_ADDR = (u32) & buf->StatusWord;
-	buf->Dma[1].CONFIG.b_DMA_EN = 1;	/* enabled */
-	buf->Dma[1].CONFIG.b_WNR = 1;	/* Write to memory */
-	buf->Dma[1].CONFIG.b_WDSIZE = 2;	/* wordsize is 32 bits */
-	buf->Dma[1].CONFIG.b_DI_EN = 1;	/* enable interrupt */
-	buf->Dma[1].CONFIG.b_NDSIZE = 0;	/* must be 0 when FLOW is 0 */
-	buf->Dma[1].CONFIG.b_FLOW = 0;	/* stop */
-
-	return buf;
-}
-
-#if defined(CONFIG_POST) && defined(CFG_POST_ETHER)
-int ether_post_test(int flags)
-{
-	uchar buf[64];
-	int i, value = 0;
-	int length;
-
-	printf("\n--------");
-	bfin_EMAC_init(NULL, NULL);
-	/* construct the package */
-	buf[0] = buf[6] = (unsigned char)(*pEMAC_ADDRLO & 0xFF);
-	buf[1] = buf[7] = (unsigned char)((*pEMAC_ADDRLO & 0xFF00) >> 8);
-	buf[2] = buf[8] = (unsigned char)((*pEMAC_ADDRLO & 0xFF0000) >> 16);
-	buf[3] = buf[9] = (unsigned char)((*pEMAC_ADDRLO & 0xFF000000) >> 24);
-	buf[4] = buf[10] = (unsigned char)(*pEMAC_ADDRHI & 0xFF);
-	buf[5] = buf[11] = (unsigned char)((*pEMAC_ADDRHI & 0xFF00) >> 8);
-	buf[12] = 0x08;		/* Type: ARP */
-	buf[13] = 0x06;
-	buf[14] = 0x00;		/* Hardware type: Ethernet */
-	buf[15] = 0x01;
-	buf[16] = 0x08;		/* Protocal type: IP */
-	buf[17] = 0x00;
-	buf[18] = 0x06;		/* Hardware size    */
-	buf[19] = 0x04;		/* Protocol size    */
-	buf[20] = 0x00;		/* Opcode: request  */
-	buf[21] = 0x01;
-
-	for (i = 0; i < 42; i++)
-		buf[i + 22] = i;
-	printf("--------Send 64 bytes......\n");
-	bfin_EMAC_send(NULL, (volatile void *)buf, 64);
-	for (i = 0; i < 100; i++) {
-		udelay(10000);
-		if ((rxbuf[rxIdx]->StatusWord & RX_COMP) != 0) {
-			value = 1;
-			break;
-		}
-	}
-	if (value == 0) {
-		printf("--------EMAC can't receive any data\n");
-		eth_halt();
-		return -1;
-	}
-	length = rxbuf[rxIdx]->StatusWord & 0x000007FF - 4;
-	for (i = 0; i < length; i++) {
-		if (rxbuf[rxIdx]->FrmData->Dest[i] != buf[i]) {
-			printf("--------EMAC receive error data!\n");
-			eth_halt();
-			return -1;
-		}
-	}
-	printf("--------receive %d bytes, matched\n", length);
-	bfin_EMAC_halt(NULL);
-	return 0;
-}
-#endif
-#endif