diff options
author | Mike Frysinger <vapier@gentoo.org> | 2008-02-24 23:58:13 -0500 |
---|---|---|
committer | Wolfgang Denk <wd@denx.de> | 2008-03-25 22:35:26 +0100 |
commit | 395bce4f59a507a60a475f7ee46bed47de9482df (patch) | |
tree | 354c55a5041a0c3e7b9b9ada917cb8eacbde069f /drivers | |
parent | 8a30b4700942f37495d2e67f5998cdffb6e3ba8a (diff) | |
download | bootable_bootloader_goldelico_gta04-395bce4f59a507a60a475f7ee46bed47de9482df.zip bootable_bootloader_goldelico_gta04-395bce4f59a507a60a475f7ee46bed47de9482df.tar.gz bootable_bootloader_goldelico_gta04-395bce4f59a507a60a475f7ee46bed47de9482df.tar.bz2 |
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>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/Makefile | 1 | ||||
-rw-r--r-- | drivers/net/bfin_mac.c | 523 | ||||
-rw-r--r-- | drivers/net/bfin_mac.h | 89 |
3 files changed, 613 insertions, 0 deletions
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 |