#include <netdev.h>
#include <command.h>
#include <malloc.h>
+#include <miiphy.h>
+#include <linux/mii.h>
#include <asm/blackfin.h>
#include <asm/mach-common/bits/dma.h>
#include "bfin_mac.h"
-#ifdef CONFIG_POST
-#include <post.h>
+#ifndef CONFIG_PHY_ADDR
+# define CONFIG_PHY_ADDR 1
+#endif
+#ifndef CONFIG_PHY_CLOCK_FREQ
+# define CONFIG_PHY_CLOCK_FREQ 2500000
#endif
-#undef DEBUG_ETHERNET
-
-#ifdef DEBUG_ETHERNET
-#define DEBUGF(fmt, args...) printf(fmt, ##args)
-#else
-#define DEBUGF(fmt, args...)
+#ifdef CONFIG_POST
+#include <post.h>
#endif
#define RXBUF_BASE_ADDR 0xFF900000
#define TOUT_LOOP 1000000
-ADI_ETHER_BUFFER *txbuf[TX_BUF_CNT];
-ADI_ETHER_BUFFER *rxbuf[PKTBUFSRX];
+static ADI_ETHER_BUFFER *txbuf[TX_BUF_CNT];
+static 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 */
+static const union {
+ u16 data;
+ ADI_DMA_CONFIG_REG reg;
+} txdmacfg = {
+ .reg = {
+ .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 */
+ },
};
-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 */
-};
+static int bfin_miiphy_wait(void)
+{
+ /* poll the STABUSY bit */
+ while (bfin_read_EMAC_STAADD() & STABUSY)
+ continue;
+ return 0;
+}
+
+static int bfin_miiphy_read(char *devname, uchar addr, uchar reg, ushort *val)
+{
+ if (bfin_miiphy_wait())
+ return 1;
+ bfin_write_EMAC_STAADD(SET_PHYAD(addr) | SET_REGAD(reg) | STABUSY);
+ if (bfin_miiphy_wait())
+ return 1;
+ *val = bfin_read_EMAC_STADAT();
+ return 0;
+}
+
+static int bfin_miiphy_write(char *devname, uchar addr, uchar reg, ushort val)
+{
+ if (bfin_miiphy_wait())
+ return 1;
+ bfin_write_EMAC_STADAT(val);
+ bfin_write_EMAC_STAADD(SET_PHYAD(addr) | SET_REGAD(reg) | STAOP | STABUSY);
+ return 0;
+}
int bfin_EMAC_initialize(bd_t *bis)
{
struct eth_device *dev;
- dev = (struct eth_device *)malloc(sizeof(*dev));
+ dev = malloc(sizeof(*dev));
if (dev == NULL)
hang();
eth_register(dev);
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+ miiphy_register(dev->name, bfin_miiphy_read, bfin_miiphy_write);
+#endif
+
return 0;
}
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);
+ *pDMA2_NEXT_DESC_PTR = txbuf[txIdx]->Dma;
+ *pDMA2_CONFIG = txdmacfg.data;
*pEMAC_OPMODE |= TE;
for (i = 0; (txbuf[txIdx]->StatusWord & TX_COMP) == 0; i++) {
else
txIdx++;
out:
- DEBUGF("BFIN EMAC send: length = %d\n", length);
+ debug("BFIN EMAC send: length = %d\n", length);
return result;
}
printf("Ethernet: bad frame\n");
break;
}
+
+ debug("%s: len = %d\n", __func__, length - 4);
+
NetRxPackets[rxIdx] =
(volatile uchar *)(rxbuf[rxIdx]->FrmData->Dest);
NetReceive(NetRxPackets[rxIdx], length - 4);
*
*************************************************************/
-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
-
/* MDC = SCLK / MDC_freq / 2 - 1 */
#define MDC_FREQ_TO_DIV(mdc_freq) (get_sclk() / (mdc_freq) / 2 - 1)
-static int SetupSystemRegs(int *opmode)
+static int bfin_miiphy_init(struct eth_device *dev, int *opmode)
{
u16 phydat;
- int count = 0;
+ size_t count;
+
/* Enable PHY output */
*pVR_CTL |= CLKBUFOE;
- /* Set all the pins to peripheral mode */
-#ifdef CONFIG_BFIN_MAC_RMII
+ /* Set all the pins to peripheral mode */
+#ifdef CONFIG_RMII
/* grab RMII pins */
# if defined(__ADSPBF51x__)
*pPORTF_MUX = (*pPORTF_MUX & \
/* Odd word alignment for Receive Frame DMA word */
/* Configure checksum support and rcve frame word alignment */
- *pEMAC_SYSCTL = RXDWA | RXCKS | SET_MDCDIV(MDC_FREQ_TO_DIV(2500000));
- /* 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");
+ bfin_write_EMAC_SYSCTL(RXDWA | RXCKS | SET_MDCDIV(MDC_FREQ_TO_DIV(CONFIG_PHY_CLOCK_FREQ)));
+
+ /* turn on auto-negotiation and wait for link to come up */
+ bfin_miiphy_write(dev->name, CONFIG_PHY_ADDR, MII_BMCR, BMCR_ANENABLE);
+ count = 0;
+ while (1) {
+ ++count;
+ if (bfin_miiphy_read(dev->name, CONFIG_PHY_ADDR, MII_BMSR, &phydat))
+ return -1;
+ if (phydat & BMSR_LSTATUS)
+ break;
+ if (count > 30000) {
+ printf("%s: link down, check cable\n", dev->name);
return -1;
}
- count++;
- } while (!(phydat & 0x0004));
-
- phydat = RdPHYReg(PHYADDR, PHY_ANLPAR);
+ udelay(100);
+ }
- if ((phydat & 0x0100) || (phydat & 0x0040))
+ /* see what kind of link we have */
+ if (bfin_miiphy_read(dev->name, CONFIG_PHY_ADDR, MII_LPA, &phydat))
+ return -1;
+ if (phydat & LPA_DUPLEX)
*opmode = FDMODE;
else
*opmode = 0;
- *pEMAC_MMC_CTL = RSTC | CROLL;
+ bfin_write_EMAC_MMC_CTL(RSTC | CROLL);
/* Initialize the TX DMA channel registers */
*pDMA2_X_COUNT = 0;
*pDMA1_X_MODIFY = 4;
*pDMA1_Y_COUNT = 0;
*pDMA1_Y_MODIFY = 0;
+
+ return 0;
+}
+
+static int bfin_EMAC_init(struct eth_device *dev, bd_t *bd)
+{
+ u32 opmode;
+ int dat;
+ int i;
+ debug("Eth_init: ......\n");
+
+ txIdx = 0;
+ rxIdx = 0;
+
+ /* Initialize System Register */
+ if (bfin_miiphy_init(dev, &dat) < 0)
+ return -1;
+
+ /* Initialize EMAC address */
+ bfin_EMAC_setup_addr(dev->enetaddr);
+
+ /* 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;
+ if (i == (PKTBUFSRX - 1))
+ rxbuf[i]->Dma[1].NEXT_DESC_PTR = rxbuf[0]->Dma;
+ }
+ }
+ 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;
+ if (i == (TX_BUF_CNT - 1))
+ txbuf[i]->Dma[1].NEXT_DESC_PTR = txbuf[0]->Dma;
+ }
+ }
+
+ /* Set RX DMA */
+ *pDMA1_NEXT_DESC_PTR = rxbuf[0]->Dma;
+ *pDMA1_CONFIG = rxbuf[0]->Dma[0].CONFIG_DATA;
+
+ /* Wait MII done */
+ bfin_miiphy_wait();
+
+ /* 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_RMII
+ opmode |= TE | RMII;
+#endif
+ /* Turn on the EMAC */
+ *pEMAC_OPMODE = opmode;
return 0;
}
+static void bfin_EMAC_halt(struct eth_device *dev)
+{
+ debug("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(uchar *enetaddr)
+{
+ *pEMAC_ADDRLO =
+ enetaddr[0] |
+ enetaddr[1] << 8 |
+ enetaddr[2] << 16 |
+ enetaddr[3] << 24;
+ *pEMAC_ADDRHI =
+ enetaddr[4] |
+ enetaddr[5] << 8;
+}
+
ADI_ETHER_BUFFER *SetupRxBuffer(int no)
{
ADI_ETHER_FRAME_BUFFER *frmbuf;
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);
+ buf = (void *) (RXBUF_BASE_ADDR + no * total_size);
+ frmbuf = (void *) (RXBUF_BASE_ADDR + no * total_size + nobytes_buffer);
memset(buf, 0x00, nobytes_buffer);
buf->FrmData = frmbuf;
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].NEXT_DESC_PTR = buf->Dma;
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 */
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);
+ buf = (void *) (TXBUF_BASE_ADDR + no * total_size);
+ frmbuf = (void *) (TXBUF_BASE_ADDR + no * total_size + nobytes_buffer);
memset(buf, 0x00, nobytes_buffer);
buf->FrmData = frmbuf;
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