[U-Boot-Users] [PATCH] net/Blackfin: move on-chip MAC driver into drivers/net/
Mike Frysinger
vapier at gentoo.org
Mon Feb 25 05:58:13 CET 2008
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 at gentoo.org>
---
board/bf537-stamp/Makefile | 2 +-
board/bf537-stamp/ether_bf537.c | 549 ---------------------------------------
board/bf537-stamp/ether_bf537.h | 71 -----
drivers/net/Makefile | 1 +
drivers/net/bfin_mac.c | 523 +++++++++++++++++++++++++++++++++++++
drivers/net/bfin_mac.h | 89 +++++++
6 files changed, 614 insertions(+), 621 deletions(-)
delete mode 100644 board/bf537-stamp/ether_bf537.c
delete mode 100644 board/bf537-stamp/ether_bf537.h
create mode 100644 drivers/net/bfin_mac.c
create mode 100644 drivers/net/bfin_mac.h
diff --git a/board/bf537-stamp/Makefile b/board/bf537-stamp/Makefile
index e488844..fcdfd24 100644
--- a/board/bf537-stamp/Makefile
+++ b/board/bf537-stamp/Makefile
@@ -29,7 +29,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(BOARD).a
-COBJS := $(BOARD).o flash.o ether_bf537.o post-memory.o stm_m25p64.o cmd_bf537led.o nand.o
+COBJS := $(BOARD).o flash.o post-memory.o stm_m25p64.o cmd_bf537led.o nand.o
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
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
diff --git a/board/bf537-stamp/ether_bf537.h b/board/bf537-stamp/ether_bf537.h
deleted file mode 100644
index 22fc392..0000000
--- a/board/bf537-stamp/ether_bf537.h
+++ /dev/null
@@ -1,71 +0,0 @@
-#define PHYADDR 0x01
-#define NO_PHY_REGS 0x20
-
-#define DEFAULT_PHY_PHYID1 0x0007
-#define DEFAULT_PHY_PHYID2 0xC0A3
-#define PHY_MODECTL 0x00
-#define PHY_MODESTAT 0x01
-#define PHY_PHYID1 0x02
-#define PHY_PHYID2 0x03
-#define PHY_ANAR 0x04
-#define PHY_ANLPAR 0x05
-#define PHY_ANER 0x06
-
-#define PHY_RESET 0x8000
-#define PHY_ANEG_EN 0x1000
-#define PHY_DUPLEX 0x0100
-#define PHY_SPD_SET 0x2000
-
-#define RECV_BUFSIZE (0x614)
-
-typedef volatile u32 reg32;
-typedef volatile u16 reg16;
-
-typedef struct ADI_DMA_CONFIG_REG {
- u16 b_DMA_EN:1; /* 0 Enabled */
- u16 b_WNR:1; /* 1 Direction */
- u16 b_WDSIZE:2; /* 2:3 Transfer word size */
- u16 b_DMA2D:1; /* 4 DMA mode */
- u16 b_RESTART:1; /* 5 Retain FIFO */
- u16 b_DI_SEL:1; /* 6 Data interrupt timing select */
- u16 b_DI_EN:1; /* 7 Data interrupt enabled */
- u16 b_NDSIZE:4; /* 8:11 Flex descriptor size */
- u16 b_FLOW:3; /* 12:14Flow */
-} ADI_DMA_CONFIG_REG;
-
-typedef struct adi_ether_frame_buffer {
- u16 NoBytes; /* the no. of following bytes */
- u8 Dest[6]; /* destination MAC address */
- u8 Srce[6]; /* source MAC address */
- u16 LTfield; /* length/type field */
- u8 Data[0]; /* payload bytes */
-} ADI_ETHER_FRAME_BUFFER;
-/* 16 bytes/struct */
-
-typedef struct dma_descriptor {
- struct dma_descriptor *NEXT_DESC_PTR;
- u32 START_ADDR;
- ADI_DMA_CONFIG_REG CONFIG;
-} DMA_DESCRIPTOR;
-/* 10 bytes/struct in 12 bytes */
-
-typedef struct adi_ether_buffer {
- DMA_DESCRIPTOR Dma[2]; /* first for the frame, second for the status */
- ADI_ETHER_FRAME_BUFFER *FrmData;/* pointer to data */
- struct adi_ether_buffer *pNext; /* next buffer */
- struct adi_ether_buffer *pPrev; /* prev buffer */
- u16 IPHdrChksum; /* the IP header checksum */
- u16 IPPayloadChksum; /* the IP header and payload checksum */
- volatile u32 StatusWord; /* the frame status word */
-} ADI_ETHER_BUFFER;
-/* 40 bytes/struct in 44 bytes */
-
-void SetupMacAddr(u8 * MACaddr);
-
-void PollMdcDone(void);
-void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
-u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
-void SoftResetPHY(void);
-void DumpPHYRegs(void);
-
-int SetupSystemRegs(int *opmode);
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index b9723fa..321bd08 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -27,6 +27,7 @@ LIB := $(obj)libnet.a
COBJS-y += 3c589.o
COBJS-y += bcm570x.o bcm570x_autoneg.o 5701rls.o
+COBJS-$(CONFIG_BFIN_MAC) += bfin_mac.o
COBJS-y += cs8900.o
COBJS-y += dc2114x.o
COBJS-y += dm9000x.o
diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c
new file mode 100644
index 0000000..afe122a
--- /dev/null
+++ b/drivers/net/bfin_mac.c
@@ -0,0 +1,523 @@
+/*
+ * Driver for Blackfin On-Chip MAC device
+ *
+ * Copyright (c) 2005-2008 Analog Device, Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <net.h>
+#include <command.h>
+#include <malloc.h>
+
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/dma.h>
+#include <asm/mach-common/bits/emac.h>
+#include <asm/mach-common/bits/pll.h>
+
+#include "bfin_mac.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
+
+#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 */
+
+u16 PHYregs[NO_PHY_REGS]; /* u16 PHYADDR; */
+
+/* DMAx_CONFIG values at DMA Restart */
+const ADI_DMA_CONFIG_REG rxdmacfg = {
+ .b_DMA_EN = 1, /* enabled */
+ .b_WNR = 1, /* write to memory */
+ .b_WDSIZE = 2, /* wordsize is 32 bits */
+ .b_DMA2D = 0,
+ .b_RESTART = 0,
+ .b_DI_SEL = 0,
+ .b_DI_EN = 0, /* no interrupt */
+ .b_NDSIZE = 5, /* 5 half words is desc size */
+ .b_FLOW = 7 /* large desc flow */
+};
+
+const ADI_DMA_CONFIG_REG txdmacfg = {
+ .b_DMA_EN = 1, /* enabled */
+ .b_WNR = 0, /* read from memory */
+ .b_WDSIZE = 2, /* wordsize is 32 bits */
+ .b_DMA2D = 0,
+ .b_RESTART = 0,
+ .b_DI_SEL = 0,
+ .b_DI_EN = 0, /* no interrupt */
+ .b_NDSIZE = 5, /* 5 half words is desc size */
+ .b_FLOW = 7 /* large desc flow */
+};
+
+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, "Blackfin EMAC");
+
+ 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 */
+ bfin_EMAC_setup_addr(bd);
+
+/* 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 bfin_EMAC_setup_addr(bd_t *bd)
+{
+ *pEMAC_ADDRLO =
+ bd->bi_enetaddr[0] |
+ bd->bi_enetaddr[1] << 8 |
+ bd->bi_enetaddr[2] << 16 |
+ bd->bi_enetaddr[3] << 24;
+ *pEMAC_ADDRHI =
+ bd->bi_enetaddr[4] |
+ bd->bi_enetaddr[5] << 8;
+}
+
+static void PollMdcDone(void)
+{
+ /* poll the STABUSY bit */
+ while (*pEMAC_STAADD & STABUSY) ;
+}
+
+static 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 *
+ *********************************************************************************/
+static 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;
+}
+
+#if 0 /* dead code ? */
+static 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);
+}
+#endif
+
+static int SetupSystemRegs(int *opmode)
+{
+ u16 sysctl, phydat;
+ int count = 0;
+ /* Enable PHY output */
+ *pVR_CTL |= CLKBUFOE;
+ /* Set all the pins to peripheral mode */
+
+#ifndef CONFIG_BFIN_MAC_RMII
+ *pPORTH_FER = 0xFFFF;
+#ifdef __ADSPBF52x__
+ *pPORTH_MUX = PORT_x_MUX_0_FUNC_2 | PORT_x_MUX_1_FUNC_2 | PORT_x_MUX_2_FUNC_2;
+#endif
+#else
+#if defined(__ADSPBF536__) || defined(__ADSPBF537__)
+ *pPORTH_FER = 0xC373;
+#endif
+#ifdef __ADSPBF52x__
+ *pPORTH_FER = 0x01FF;
+ *pPORTH_MUX = PORT_x_MUX_0_FUNC_2 | PORT_x_MUX_1_FUNC_2;
+#endif
+#endif
+ /* 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
diff --git a/drivers/net/bfin_mac.h b/drivers/net/bfin_mac.h
new file mode 100644
index 0000000..c8a94d0
--- /dev/null
+++ b/drivers/net/bfin_mac.h
@@ -0,0 +1,89 @@
+/*
+ * bfin_mac.h - some defines/structures for the Blackfin on-chip MAC.
+ *
+ * Copyright (c) 2005-2008 Analog Device, Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __BFIN_MAC_H__
+#define __BFIN_MAC_H__
+
+#define PHYADDR 0x01
+#define NO_PHY_REGS 0x20
+
+#define DEFAULT_PHY_PHYID1 0x0007
+#define DEFAULT_PHY_PHYID2 0xC0A3
+#define PHY_MODECTL 0x00
+#define PHY_MODESTAT 0x01
+#define PHY_PHYID1 0x02
+#define PHY_PHYID2 0x03
+#define PHY_ANAR 0x04
+#define PHY_ANLPAR 0x05
+#define PHY_ANER 0x06
+
+#define PHY_RESET 0x8000
+#define PHY_ANEG_EN 0x1000
+#define PHY_DUPLEX 0x0100
+#define PHY_SPD_SET 0x2000
+
+#define RECV_BUFSIZE (0x614)
+
+typedef volatile u32 reg32;
+typedef volatile u16 reg16;
+
+typedef struct ADI_DMA_CONFIG_REG {
+ u16 b_DMA_EN:1; /* 0 Enabled */
+ u16 b_WNR:1; /* 1 Direction */
+ u16 b_WDSIZE:2; /* 2:3 Transfer word size */
+ u16 b_DMA2D:1; /* 4 DMA mode */
+ u16 b_RESTART:1; /* 5 Retain FIFO */
+ u16 b_DI_SEL:1; /* 6 Data interrupt timing select */
+ u16 b_DI_EN:1; /* 7 Data interrupt enabled */
+ u16 b_NDSIZE:4; /* 8:11 Flex descriptor size */
+ u16 b_FLOW:3; /* 12:14Flow */
+} ADI_DMA_CONFIG_REG;
+
+typedef struct adi_ether_frame_buffer {
+ u16 NoBytes; /* the no. of following bytes */
+ u8 Dest[6]; /* destination MAC address */
+ u8 Srce[6]; /* source MAC address */
+ u16 LTfield; /* length/type field */
+ u8 Data[0]; /* payload bytes */
+} ADI_ETHER_FRAME_BUFFER;
+/* 16 bytes/struct */
+
+typedef struct dma_descriptor {
+ struct dma_descriptor *NEXT_DESC_PTR;
+ u32 START_ADDR;
+ ADI_DMA_CONFIG_REG CONFIG;
+} DMA_DESCRIPTOR;
+/* 10 bytes/struct in 12 bytes */
+
+typedef struct adi_ether_buffer {
+ DMA_DESCRIPTOR Dma[2]; /* first for the frame, second for the status */
+ ADI_ETHER_FRAME_BUFFER *FrmData;/* pointer to data */
+ struct adi_ether_buffer *pNext; /* next buffer */
+ struct adi_ether_buffer *pPrev; /* prev buffer */
+ u16 IPHdrChksum; /* the IP header checksum */
+ u16 IPPayloadChksum; /* the IP header and payload checksum */
+ volatile u32 StatusWord; /* the frame status word */
+} ADI_ETHER_BUFFER;
+/* 40 bytes/struct in 44 bytes */
+
+static ADI_ETHER_BUFFER *SetupRxBuffer(int no);
+static 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);
+
+static void PollMdcDone(void);
+static void WrPHYReg(u16 PHYAddr, u16 RegAddr, u16 Data);
+static u16 RdPHYReg(u16 PHYAddr, u16 RegAddr);
+static int SetupSystemRegs(int *opmode);
+
+static void bfin_EMAC_setup_addr(bd_t *bd);
+
+#endif
--
1.5.4.2
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