void __mii_init(void)
{
FEC_INFO_T *info;
volatile FEC_T *fecp;
struct eth_device *dev;
int miispd = 0, i = 0;
u16 status = 0;
u16 linkgood = 0;
/* retrieve from register structure */
dev = eth_get_dev();
info = dev->priv;
fecp = (FEC_T *) info->miibase;
fecpin_setclear(dev, 1);
mii_reset(info);
/* We use strictly polling mode only */
fecp->eimr = 0;
/* Clear any pending interrupt */
fecp->eir = 0xffffffff;
/* Set MII speed */
miispd = (gd->bus_clk / 1000000) / 5;
fecp->mscr = miispd << 1;
info->phy_addr = mii_discover_phy(dev);
while (i < MCFFEC_TOUT_LOOP) {
status = 0;
i++;
/* Read PHY control register */
miiphy_read(dev->name, info->phy_addr, MII_BMCR, &status);
/* If phy set to autonegotiate, wait for autonegotiation done,
* if phy is not autonegotiating, just wait for link up.
*/
if ((status & BMCR_ANENABLE) == BMCR_ANENABLE) {
linkgood = (BMSR_ANEGCOMPLETE | BMSR_LSTATUS);
} else {
linkgood = BMSR_LSTATUS;
}
/* Read PHY status register */
miiphy_read(dev->name, info->phy_addr, MII_BMSR, &status);
if ((status & linkgood) == linkgood)
break;
udelay(1);
}
if (i >= MCFFEC_TOUT_LOOP) {
printf("Link UP timeout\n");
}
/* adapt to the duplex and speed settings of the phy */
info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
}
void __mii_init(void)
{
volatile fec_t *fecp;
struct fec_info_s *info;
struct eth_device *dev;
int miispd = 0, i = 0;
u16 autoneg = 0;
/* retrieve from register structure */
dev = eth_get_dev();
info = dev->priv;
fecp = (fec_t *) info->miibase;
fecpin_setclear(dev, 1);
mii_reset(info);
/* We use strictly polling mode only */
fecp->eimr = 0;
/* Clear any pending interrupt */
fecp->eir = 0xffffffff;
/* Set MII speed */
miispd = (gd->bus_clk / 1000000) / 5;
fecp->mscr = miispd << 1;
info->phy_addr = mii_discover_phy(dev);
#define AUTONEGLINK (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS)
while (i < MCFFEC_TOUT_LOOP) {
autoneg = 0;
miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &autoneg);
i++;
if ((autoneg & AUTONEGLINK) == AUTONEGLINK)
break;
udelay(500);
}
if (i >= MCFFEC_TOUT_LOOP) {
printf("Auto Negotiation not complete\n");
}
/* adapt to the half/full speed settings */
info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
}
static int fec_init(struct eth_device* dev, bd_t *bis)
{
struct ether_fcc_info_s * info = dev->priv;
int i;
volatile immap_t *immr = (immap_t *)CFG_IMMR;
volatile ccsr_cpm_cp_t *cp = &(immr->im_cpm.im_cpm_cp);
fcc_enet_t *pram_ptr;
unsigned long mem_addr;
#if 0
mii_discover_phy();
#endif
/* 28.9 - (1-2): ioports have been set up already */
/* 28.9 - (3): connect FCC's tx and rx clocks */
immr->im_cpm.im_cpm_mux.cmxuar = 0; /* ATM */
immr->im_cpm.im_cpm_mux.cmxfcr = (immr->im_cpm.im_cpm_mux.cmxfcr & ~info->cmxfcr_mask) |
info->cmxfcr_value;
/* 28.9 - (4): GFMR: disable tx/rx, CCITT CRC, set Mode Ethernet */
if(info->ether_index == 0) {
immr->im_cpm.im_cpm_fcc1.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32;
} else if (info->ether_index == 1) {
immr->im_cpm.im_cpm_fcc2.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32;
} else if (info->ether_index == 2) {
immr->im_cpm.im_cpm_fcc3.gfmr = FCC_GFMR_MODE_ENET | FCC_GFMR_TCRC_32;
}
/* 28.9 - (5): FPSMR: enable full duplex, select CCITT CRC for Ethernet,MII */
if(info->ether_index == 0) {
immr->im_cpm.im_cpm_fcc1.fpsmr = CFG_FCC_PSMR | FCC_PSMR_ENCRC;
} else if (info->ether_index == 1){
immr->im_cpm.im_cpm_fcc2.fpsmr = CFG_FCC_PSMR | FCC_PSMR_ENCRC;
} else if (info->ether_index == 2){
immr->im_cpm.im_cpm_fcc3.fpsmr = CFG_FCC_PSMR | FCC_PSMR_ENCRC;
}
/* 28.9 - (6): FDSR: Ethernet Syn */
if(info->ether_index == 0) {
immr->im_cpm.im_cpm_fcc1.fdsr = 0xD555;
} else if (info->ether_index == 1) {
immr->im_cpm.im_cpm_fcc2.fdsr = 0xD555;
} else if (info->ether_index == 2) {
immr->im_cpm.im_cpm_fcc3.fdsr = 0xD555;
}
/* reset indeces to current rx/tx bd (see eth_send()/eth_rx()) */
rxIdx = 0;
txIdx = 0;
/* Setup Receiver Buffer Descriptors */
for (i = 0; i < PKTBUFSRX; i++)
{
rtx.rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
rtx.rxbd[i].cbd_datlen = 0;
rtx.rxbd[i].cbd_bufaddr = (uint)NetRxPackets[i];
}
rtx.rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
/* Setup Ethernet Transmitter Buffer Descriptors */
for (i = 0; i < TX_BUF_CNT; i++)
{
rtx.txbd[i].cbd_sc = 0;
rtx.txbd[i].cbd_datlen = 0;
rtx.txbd[i].cbd_bufaddr = 0;
}
rtx.txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
/* 28.9 - (7): initialize parameter ram */
pram_ptr = (fcc_enet_t *)&(immr->im_cpm.im_dprambase[info->proff_enet]);
/* clear whole structure to make sure all reserved fields are zero */
memset((void*)pram_ptr, 0, sizeof(fcc_enet_t));
/*
* common Parameter RAM area
*
* Allocate space in the reserved FCC area of DPRAM for the
* internal buffers. No one uses this space (yet), so we
* can do this. Later, we will add resource management for
* this area. CPM_FCC_SPECIAL_BASE: 0xb000.
*/
mem_addr = CPM_FCC_SPECIAL_BASE + ((info->ether_index) * 64);
pram_ptr->fen_genfcc.fcc_riptr = mem_addr;
pram_ptr->fen_genfcc.fcc_tiptr = mem_addr+32;
/*
* Set maximum bytes per receive buffer.
* It must be a multiple of 32.
*/
pram_ptr->fen_genfcc.fcc_mrblr = PKT_MAXBLR_SIZE; /* 1536 */
/* localbus SDRAM should be preferred */
pram_ptr->fen_genfcc.fcc_rstate = (CPMFCR_GBL | CPMFCR_EB |
CFG_CPMFCR_RAMTYPE) << 24;
pram_ptr->fen_genfcc.fcc_rbase = (unsigned int)(&rtx.rxbd[rxIdx]);
pram_ptr->fen_genfcc.fcc_rbdstat = 0;
pram_ptr->fen_genfcc.fcc_rbdlen = 0;
pram_ptr->fen_genfcc.fcc_rdptr = 0;
/* localbus SDRAM should be preferred */
pram_ptr->fen_genfcc.fcc_tstate = (CPMFCR_GBL | CPMFCR_EB |
CFG_CPMFCR_RAMTYPE) << 24;
pram_ptr->fen_genfcc.fcc_tbase = (unsigned int)(&rtx.txbd[txIdx]);
pram_ptr->fen_genfcc.fcc_tbdstat = 0;
pram_ptr->fen_genfcc.fcc_tbdlen = 0;
pram_ptr->fen_genfcc.fcc_tdptr = 0;
/* protocol-specific area */
pram_ptr->fen_statbuf = 0x0;
pram_ptr->fen_cmask = 0xdebb20e3; /* CRC mask */
pram_ptr->fen_cpres = 0xffffffff; /* CRC preset */
pram_ptr->fen_crcec = 0;
pram_ptr->fen_alec = 0;
pram_ptr->fen_disfc = 0;
pram_ptr->fen_retlim = 15; /* Retry limit threshold */
pram_ptr->fen_retcnt = 0;
pram_ptr->fen_pper = 0;
pram_ptr->fen_boffcnt = 0;
pram_ptr->fen_gaddrh = 0;
pram_ptr->fen_gaddrl = 0;
pram_ptr->fen_mflr = PKT_MAXBUF_SIZE; /* maximum frame length register */
/*
* Set Ethernet station address.
*
* This is supplied in the board information structure, so we
* copy that into the controller.
* So far we have only been given one Ethernet address. We make
* it unique by setting a few bits in the upper byte of the
* non-static part of the address.
*/
#define ea eth_get_dev()->enetaddr
pram_ptr->fen_paddrh = (ea[5] << 8) + ea[4];
pram_ptr->fen_paddrm = (ea[3] << 8) + ea[2];
pram_ptr->fen_paddrl = (ea[1] << 8) + ea[0];
#undef ea
pram_ptr->fen_ibdcount = 0;
pram_ptr->fen_ibdstart = 0;
pram_ptr->fen_ibdend = 0;
pram_ptr->fen_txlen = 0;
pram_ptr->fen_iaddrh = 0; /* disable hash */
pram_ptr->fen_iaddrl = 0;
pram_ptr->fen_minflr = PKT_MINBUF_SIZE; /* minimum frame length register: 64 */
/* pad pointer. use tiptr since we don't need a specific padding char */
pram_ptr->fen_padptr = pram_ptr->fen_genfcc.fcc_tiptr;
pram_ptr->fen_maxd1 = PKT_MAXDMA_SIZE; /* maximum DMA1 length:1520 */
pram_ptr->fen_maxd2 = PKT_MAXDMA_SIZE; /* maximum DMA2 length:1520 */
#if defined(ET_DEBUG)
printf("parm_ptr(0xff788500) = %p\n",pram_ptr);
printf("pram_ptr->fen_genfcc.fcc_rbase %08x\n",
pram_ptr->fen_genfcc.fcc_rbase);
printf("pram_ptr->fen_genfcc.fcc_tbase %08x\n",
pram_ptr->fen_genfcc.fcc_tbase);
#endif
/* 28.9 - (8)(9): clear out events in FCCE */
/* 28.9 - (9): FCCM: mask all events */
if(info->ether_index == 0) {
immr->im_cpm.im_cpm_fcc1.fcce = ~0x0;
immr->im_cpm.im_cpm_fcc1.fccm = 0;
} else if (info->ether_index == 1) {
immr->im_cpm.im_cpm_fcc2.fcce = ~0x0;
immr->im_cpm.im_cpm_fcc2.fccm = 0;
} else if (info->ether_index == 2) {
immr->im_cpm.im_cpm_fcc3.fcce = ~0x0;
immr->im_cpm.im_cpm_fcc3.fccm = 0;
}
/* 28.9 - (10-12): we don't use ethernet interrupts */
/* 28.9 - (13)
*
* Let's re-initialize the channel now. We have to do it later
* than the manual describes because we have just now finished
* the BD initialization.
*/
cp->cpcr = mk_cr_cmd(info->cpm_cr_enet_page,
info->cpm_cr_enet_sblock,
0x0c,
CPM_CR_INIT_TRX) | CPM_CR_FLG;
do {
__asm__ __volatile__ ("eieio");
} while (cp->cpcr & CPM_CR_FLG);
/* 28.9 - (14): enable tx/rx in gfmr */
if(info->ether_index == 0) {
immr->im_cpm.im_cpm_fcc1.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR;
} else if (info->ether_index == 1) {
immr->im_cpm.im_cpm_fcc2.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR;
} else if (info->ether_index == 2) {
immr->im_cpm.im_cpm_fcc3.gfmr |= FCC_GFMR_ENT | FCC_GFMR_ENR;
}
return 1;
}
void __mii_init(void)
{
FEC_INFO_T *info;
volatile FEC_T *fecp;
struct eth_device *dev;
int miispd = 0, i = 0;
u16 status = 0;
u16 linkgood = 0;
/* retrieve from register structure */
dev = eth_get_dev();
info = dev->priv;
fecp = (FEC_T *) info->miibase;
fecpin_setclear(dev, 1);
mii_reset(info);
/* We use strictly polling mode only */
fecp->eimr = 0;
/* Clear any pending interrupt */
fecp->eir = 0xffffffff;
/* Set MII speed */
#ifdef CONFIG_M68K
miispd = (gd->bus_clk / 1000000) / 5;
#else
/*
* The MSCR[MII_SPEED] bit field is minus 1 encoded.
*
* We round the value in MSCR[MII_SPEED] up, so that the MDC frequency
* never exceeds CONFIG_MCFFEC_MII_SPEED_LIMIT.
*/
miispd =
(CONFIG_MCFFEC_MAC_CLK - 1) /
(2 * CONFIG_MCFFEC_MII_SPEED_LIMIT);
#endif /* CONFIG_M68K */
if (miispd > MCFFEC_MII_SPEED_MAX)
miispd = MCFFEC_MII_SPEED_MAX;
fecp->mscr = miispd << 1;
info->phy_addr = mii_discover_phy(dev);
while (i < MCFFEC_TOUT_LOOP) {
status = 0;
i++;
/* Read PHY control register */
miiphy_read(dev->name, info->phy_addr, PHY_BMCR, &status);
/* If phy set to autonegotiate, wait for autonegotiation done,
* if phy is not autonegotiating, just wait for link up.
*/
if ((status & PHY_BMCR_AUTON) == PHY_BMCR_AUTON) {
linkgood = (PHY_BMSR_AUTN_COMP | PHY_BMSR_LS);
} else {
linkgood = PHY_BMSR_LS;
}
/* Read PHY status register */
miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &status);
if ((status & linkgood) == linkgood)
break;
udelay(1);
}
if (i >= MCFFEC_TOUT_LOOP) {
printf("Link UP timeout\n");
}
/* adapt to the duplex and speed settings of the phy */
info->dup_spd = miiphy_duplex(dev->name, info->phy_addr) << 16;
info->dup_spd |= miiphy_speed(dev->name, info->phy_addr);
}
