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path: root/drivers/net/mcffec.c
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Diffstat (limited to 'drivers/net/mcffec.c')
-rw-r--r--drivers/net/mcffec.c597
1 files changed, 597 insertions, 0 deletions
diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
new file mode 100644
index 0000000..2e0ddeb
--- /dev/null
+++ b/drivers/net/mcffec.c
@@ -0,0 +1,597 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2007 Freescale Semiconductor, Inc.
+ * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
+ *
+ * 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 <malloc.h>
+
+#include <asm/fec.h>
+#include <asm/immap.h>
+
+#include <command.h>
+#include <config.h>
+#include <net.h>
+#include <miiphy.h>
+
+#ifdef CONFIG_MCFFEC
+#undef ET_DEBUG
+#undef MII_DEBUG
+
+/* Ethernet Transmit and Receive Buffers */
+#define DBUF_LENGTH 1520
+#define TX_BUF_CNT 2
+#define PKT_MAXBUF_SIZE 1518
+#define PKT_MINBUF_SIZE 64
+#define PKT_MAXBLR_SIZE 1520
+#define LAST_PKTBUFSRX PKTBUFSRX - 1
+#define BD_ENET_RX_W_E (BD_ENET_RX_WRAP | BD_ENET_RX_EMPTY)
+#define BD_ENET_TX_RDY_LST (BD_ENET_TX_READY | BD_ENET_TX_LAST)
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
+
+struct fec_info_s fec_info[] = {
+#ifdef CFG_FEC0_IOBASE
+ {
+ 0, /* index */
+ CFG_FEC0_IOBASE, /* io base */
+ CFG_FEC0_PINMUX, /* gpio pin muxing */
+ CFG_FEC0_MIIBASE, /* mii base */
+ -1, /* phy_addr */
+ 0, /* duplex and speed */
+ 0, /* phy name */
+ 0, /* phyname init */
+ 0, /* RX BD */
+ 0, /* TX BD */
+ 0, /* rx Index */
+ 0, /* tx Index */
+ 0, /* tx buffer */
+ 0, /* initialized flag */
+ },
+#endif
+#ifdef CFG_FEC1_IOBASE
+ {
+ 1, /* index */
+ CFG_FEC1_IOBASE, /* io base */
+ CFG_FEC1_PINMUX, /* gpio pin muxing */
+ CFG_FEC1_MIIBASE, /* mii base */
+ -1, /* phy_addr */
+ 0, /* duplex and speed */
+ 0, /* phy name */
+ 0, /* phy name init */
+ 0, /* RX BD */
+ 0, /* TX BD */
+ 0, /* rx Index */
+ 0, /* tx Index */
+ 0, /* tx buffer */
+ 0, /* initialized flag */
+ }
+#endif
+};
+
+int fec_send(struct eth_device *dev, volatile void *packet, int length);
+int fec_recv(struct eth_device *dev);
+int fec_init(struct eth_device *dev, bd_t * bd);
+void fec_halt(struct eth_device *dev);
+void fec_reset(struct eth_device *dev);
+
+extern int fecpin_setclear(struct eth_device *dev, int setclear);
+
+#ifdef CFG_DISCOVER_PHY
+extern void __mii_init(void);
+extern uint mii_send(uint mii_cmd);
+extern int mii_discover_phy(struct eth_device *dev);
+extern int mcffec_miiphy_read(char *devname, unsigned char addr,
+ unsigned char reg, unsigned short *value);
+extern int mcffec_miiphy_write(char *devname, unsigned char addr,
+ unsigned char reg, unsigned short value);
+#endif
+
+void setFecDuplexSpeed(volatile fec_t * fecp, bd_t * bd, int dup_spd)
+{
+ if ((dup_spd >> 16) == FULL) {
+ /* Set maximum frame length */
+ fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) | FEC_RCR_MII_MODE |
+ FEC_RCR_PROM | 0x100;
+ fecp->tcr = FEC_TCR_FDEN;
+ } else {
+ /* Half duplex mode */
+ fecp->rcr = FEC_RCR_MAX_FL(PKT_MAXBUF_SIZE) |
+ FEC_RCR_MII_MODE | FEC_RCR_DRT;
+ fecp->tcr &= ~FEC_TCR_FDEN;
+ }
+
+ if ((dup_spd & 0xFFFF) == _100BASET) {
+#ifdef MII_DEBUG
+ printf("100Mbps\n");
+#endif
+ bd->bi_ethspeed = 100;
+ } else {
+#ifdef MII_DEBUG
+ printf("10Mbps\n");
+#endif
+ bd->bi_ethspeed = 10;
+ }
+}
+
+int fec_send(struct eth_device *dev, volatile void *packet, int length)
+{
+ struct fec_info_s *info = dev->priv;
+ volatile fec_t *fecp = (fec_t *) (info->iobase);
+ int j, rc;
+ u16 phyStatus;
+
+ miiphy_read(dev->name, info->phy_addr, PHY_BMSR, &phyStatus);
+
+ /* section 16.9.23.3
+ * Wait for ready
+ */
+ j = 0;
+ while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
+ (j < MCFFEC_TOUT_LOOP)) {
+ udelay(1);
+ j++;
+ }
+ if (j >= MCFFEC_TOUT_LOOP) {
+ printf("TX not ready\n");
+ }
+
+ info->txbd[info->txIdx].cbd_bufaddr = (uint) packet;
+ info->txbd[info->txIdx].cbd_datlen = length;
+ info->txbd[info->txIdx].cbd_sc |= BD_ENET_TX_RDY_LST;
+
+ /* Activate transmit Buffer Descriptor polling */
+ fecp->tdar = 0x01000000; /* Descriptor polling active */
+
+#ifdef CFG_UNIFY_CACHE
+ icache_invalid();
+#endif
+ j = 0;
+ while ((info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_READY) &&
+ (j < MCFFEC_TOUT_LOOP)) {
+ udelay(1);
+ j++;
+ }
+ if (j >= MCFFEC_TOUT_LOOP) {
+ printf("TX timeout\n");
+ }
+
+#ifdef ET_DEBUG
+ printf("%s[%d] %s: cycles: %d status: %x retry cnt: %d\n",
+ __FILE__, __LINE__, __FUNCTION__, j,
+ info->txbd[info->txIdx].cbd_sc,
+ (info->txbd[info->txIdx].cbd_sc & 0x003C) >> 2);
+#endif
+
+ /* return only status bits */
+ rc = (info->txbd[info->txIdx].cbd_sc & BD_ENET_TX_STATS);
+ info->txIdx = (info->txIdx + 1) % TX_BUF_CNT;
+
+ return rc;
+}
+
+int fec_recv(struct eth_device *dev)
+{
+ struct fec_info_s *info = dev->priv;
+ volatile fec_t *fecp = (fec_t *) (info->iobase);
+ int length;
+
+ for (;;) {
+#ifdef CFG_UNIFY_CACHE
+ icache_invalid();
+#endif
+ /* section 16.9.23.2 */
+ if (info->rxbd[info->rxIdx].cbd_sc & BD_ENET_RX_EMPTY) {
+ length = -1;
+ break; /* nothing received - leave for() loop */
+ }
+
+ length = info->rxbd[info->rxIdx].cbd_datlen;
+
+ if (info->rxbd[info->rxIdx].cbd_sc & 0x003f) {
+ printf("%s[%d] err: %x\n",
+ __FUNCTION__, __LINE__,
+ info->rxbd[info->rxIdx].cbd_sc);
+#ifdef ET_DEBUG
+ printf("%s[%d] err: %x\n",
+ __FUNCTION__, __LINE__,
+ info->rxbd[info->rxIdx].cbd_sc);
+#endif
+ } else {
+
+ length -= 4;
+ /* Pass the packet up to the protocol layers. */
+ NetReceive(NetRxPackets[info->rxIdx], length);
+
+ fecp->eir |= FEC_EIR_RXF;
+ }
+
+ /* Give the buffer back to the FEC. */
+ info->rxbd[info->rxIdx].cbd_datlen = 0;
+
+ /* wrap around buffer index when necessary */
+ if (info->rxIdx == LAST_PKTBUFSRX) {
+ info->rxbd[PKTBUFSRX - 1].cbd_sc = BD_ENET_RX_W_E;
+ info->rxIdx = 0;
+ } else {
+ info->rxbd[info->rxIdx].cbd_sc = BD_ENET_RX_EMPTY;
+ info->rxIdx++;
+ }
+
+ /* Try to fill Buffer Descriptors */
+ fecp->rdar = 0x01000000; /* Descriptor polling active */
+ }
+
+ return length;
+}
+
+#ifdef ET_DEBUG
+void dbgFecRegs(struct eth_device *dev)
+{
+ struct fec_info_s *info = dev->priv;
+ volatile fec_t *fecp = (fec_t *) (info->iobase);
+
+ printf("=====\n");
+ printf("ievent %x - %x\n", (int)&fecp->eir, fecp->eir);
+ printf("imask %x - %x\n", (int)&fecp->eimr, fecp->eimr);
+ printf("r_des_active %x - %x\n", (int)&fecp->rdar, fecp->rdar);
+ printf("x_des_active %x - %x\n", (int)&fecp->tdar, fecp->tdar);
+ printf("ecntrl %x - %x\n", (int)&fecp->ecr, fecp->ecr);
+ printf("mii_mframe %x - %x\n", (int)&fecp->mmfr, fecp->mmfr);
+ printf("mii_speed %x - %x\n", (int)&fecp->mscr, fecp->mscr);
+ printf("mii_ctrlstat %x - %x\n", (int)&fecp->mibc, fecp->mibc);
+ printf("r_cntrl %x - %x\n", (int)&fecp->rcr, fecp->rcr);
+ printf("x_cntrl %x - %x\n", (int)&fecp->tcr, fecp->tcr);
+ printf("padr_l %x - %x\n", (int)&fecp->palr, fecp->palr);
+ printf("padr_u %x - %x\n", (int)&fecp->paur, fecp->paur);
+ printf("op_pause %x - %x\n", (int)&fecp->opd, fecp->opd);
+ printf("iadr_u %x - %x\n", (int)&fecp->iaur, fecp->iaur);
+ printf("iadr_l %x - %x\n", (int)&fecp->ialr, fecp->ialr);
+ printf("gadr_u %x - %x\n", (int)&fecp->gaur, fecp->gaur);
+ printf("gadr_l %x - %x\n", (int)&fecp->galr, fecp->galr);
+ printf("x_wmrk %x - %x\n", (int)&fecp->tfwr, fecp->tfwr);
+ printf("r_bound %x - %x\n", (int)&fecp->frbr, fecp->frbr);
+ printf("r_fstart %x - %x\n", (int)&fecp->frsr, fecp->frsr);
+ printf("r_drng %x - %x\n", (int)&fecp->erdsr, fecp->erdsr);
+ printf("x_drng %x - %x\n", (int)&fecp->etdsr, fecp->etdsr);
+ printf("r_bufsz %x - %x\n", (int)&fecp->emrbr, fecp->emrbr);
+
+ printf("\n");
+ printf("rmon_t_drop %x - %x\n", (int)&fecp->rmon_t_drop,
+ fecp->rmon_t_drop);
+ printf("rmon_t_packets %x - %x\n", (int)&fecp->rmon_t_packets,
+ fecp->rmon_t_packets);
+ printf("rmon_t_bc_pkt %x - %x\n", (int)&fecp->rmon_t_bc_pkt,
+ fecp->rmon_t_bc_pkt);
+ printf("rmon_t_mc_pkt %x - %x\n", (int)&fecp->rmon_t_mc_pkt,
+ fecp->rmon_t_mc_pkt);
+ printf("rmon_t_crc_align %x - %x\n", (int)&fecp->rmon_t_crc_align,
+ fecp->rmon_t_crc_align);
+ printf("rmon_t_undersize %x - %x\n", (int)&fecp->rmon_t_undersize,
+ fecp->rmon_t_undersize);
+ printf("rmon_t_oversize %x - %x\n", (int)&fecp->rmon_t_oversize,
+ fecp->rmon_t_oversize);
+ printf("rmon_t_frag %x - %x\n", (int)&fecp->rmon_t_frag,
+ fecp->rmon_t_frag);
+ printf("rmon_t_jab %x - %x\n", (int)&fecp->rmon_t_jab,
+ fecp->rmon_t_jab);
+ printf("rmon_t_col %x - %x\n", (int)&fecp->rmon_t_col,
+ fecp->rmon_t_col);
+ printf("rmon_t_p64 %x - %x\n", (int)&fecp->rmon_t_p64,
+ fecp->rmon_t_p64);
+ printf("rmon_t_p65to127 %x - %x\n", (int)&fecp->rmon_t_p65to127,
+ fecp->rmon_t_p65to127);
+ printf("rmon_t_p128to255 %x - %x\n", (int)&fecp->rmon_t_p128to255,
+ fecp->rmon_t_p128to255);
+ printf("rmon_t_p256to511 %x - %x\n", (int)&fecp->rmon_t_p256to511,
+ fecp->rmon_t_p256to511);
+ printf("rmon_t_p512to1023 %x - %x\n", (int)&fecp->rmon_t_p512to1023,
+ fecp->rmon_t_p512to1023);
+ printf("rmon_t_p1024to2047 %x - %x\n", (int)&fecp->rmon_t_p1024to2047,
+ fecp->rmon_t_p1024to2047);
+ printf("rmon_t_p_gte2048 %x - %x\n", (int)&fecp->rmon_t_p_gte2048,
+ fecp->rmon_t_p_gte2048);
+ printf("rmon_t_octets %x - %x\n", (int)&fecp->rmon_t_octets,
+ fecp->rmon_t_octets);
+
+ printf("\n");
+ printf("ieee_t_drop %x - %x\n", (int)&fecp->ieee_t_drop,
+ fecp->ieee_t_drop);
+ printf("ieee_t_frame_ok %x - %x\n", (int)&fecp->ieee_t_frame_ok,
+ fecp->ieee_t_frame_ok);
+ printf("ieee_t_1col %x - %x\n", (int)&fecp->ieee_t_1col,
+ fecp->ieee_t_1col);
+ printf("ieee_t_mcol %x - %x\n", (int)&fecp->ieee_t_mcol,
+ fecp->ieee_t_mcol);
+ printf("ieee_t_def %x - %x\n", (int)&fecp->ieee_t_def,
+ fecp->ieee_t_def);
+ printf("ieee_t_lcol %x - %x\n", (int)&fecp->ieee_t_lcol,
+ fecp->ieee_t_lcol);
+ printf("ieee_t_excol %x - %x\n", (int)&fecp->ieee_t_excol,
+ fecp->ieee_t_excol);
+ printf("ieee_t_macerr %x - %x\n", (int)&fecp->ieee_t_macerr,
+ fecp->ieee_t_macerr);
+ printf("ieee_t_cserr %x - %x\n", (int)&fecp->ieee_t_cserr,
+ fecp->ieee_t_cserr);
+ printf("ieee_t_sqe %x - %x\n", (int)&fecp->ieee_t_sqe,
+ fecp->ieee_t_sqe);
+ printf("ieee_t_fdxfc %x - %x\n", (int)&fecp->ieee_t_fdxfc,
+ fecp->ieee_t_fdxfc);
+ printf("ieee_t_octets_ok %x - %x\n", (int)&fecp->ieee_t_octets_ok,
+ fecp->ieee_t_octets_ok);
+
+ printf("\n");
+ printf("rmon_r_drop %x - %x\n", (int)&fecp->rmon_r_drop,
+ fecp->rmon_r_drop);
+ printf("rmon_r_packets %x - %x\n", (int)&fecp->rmon_r_packets,
+ fecp->rmon_r_packets);
+ printf("rmon_r_bc_pkt %x - %x\n", (int)&fecp->rmon_r_bc_pkt,
+ fecp->rmon_r_bc_pkt);
+ printf("rmon_r_mc_pkt %x - %x\n", (int)&fecp->rmon_r_mc_pkt,
+ fecp->rmon_r_mc_pkt);
+ printf("rmon_r_crc_align %x - %x\n", (int)&fecp->rmon_r_crc_align,
+ fecp->rmon_r_crc_align);
+ printf("rmon_r_undersize %x - %x\n", (int)&fecp->rmon_r_undersize,
+ fecp->rmon_r_undersize);
+ printf("rmon_r_oversize %x - %x\n", (int)&fecp->rmon_r_oversize,
+ fecp->rmon_r_oversize);
+ printf("rmon_r_frag %x - %x\n", (int)&fecp->rmon_r_frag,
+ fecp->rmon_r_frag);
+ printf("rmon_r_jab %x - %x\n", (int)&fecp->rmon_r_jab,
+ fecp->rmon_r_jab);
+ printf("rmon_r_p64 %x - %x\n", (int)&fecp->rmon_r_p64,
+ fecp->rmon_r_p64);
+ printf("rmon_r_p65to127 %x - %x\n", (int)&fecp->rmon_r_p65to127,
+ fecp->rmon_r_p65to127);
+ printf("rmon_r_p128to255 %x - %x\n", (int)&fecp->rmon_r_p128to255,
+ fecp->rmon_r_p128to255);
+ printf("rmon_r_p256to511 %x - %x\n", (int)&fecp->rmon_r_p256to511,
+ fecp->rmon_r_p256to511);
+ printf("rmon_r_p512to1023 %x - %x\n", (int)&fecp->rmon_r_p512to1023,
+ fecp->rmon_r_p512to1023);
+ printf("rmon_r_p1024to2047 %x - %x\n", (int)&fecp->rmon_r_p1024to2047,
+ fecp->rmon_r_p1024to2047);
+ printf("rmon_r_p_gte2048 %x - %x\n", (int)&fecp->rmon_r_p_gte2048,
+ fecp->rmon_r_p_gte2048);
+ printf("rmon_r_octets %x - %x\n", (int)&fecp->rmon_r_octets,
+ fecp->rmon_r_octets);
+
+ printf("\n");
+ printf("ieee_r_drop %x - %x\n", (int)&fecp->ieee_r_drop,
+ fecp->ieee_r_drop);
+ printf("ieee_r_frame_ok %x - %x\n", (int)&fecp->ieee_r_frame_ok,
+ fecp->ieee_r_frame_ok);
+ printf("ieee_r_crc %x - %x\n", (int)&fecp->ieee_r_crc,
+ fecp->ieee_r_crc);
+ printf("ieee_r_align %x - %x\n", (int)&fecp->ieee_r_align,
+ fecp->ieee_r_align);
+ printf("ieee_r_macerr %x - %x\n", (int)&fecp->ieee_r_macerr,
+ fecp->ieee_r_macerr);
+ printf("ieee_r_fdxfc %x - %x\n", (int)&fecp->ieee_r_fdxfc,
+ fecp->ieee_r_fdxfc);
+ printf("ieee_r_octets_ok %x - %x\n", (int)&fecp->ieee_r_octets_ok,
+ fecp->ieee_r_octets_ok);
+
+ printf("\n\n\n");
+}
+#endif
+
+int fec_init(struct eth_device *dev, bd_t * bd)
+{
+ struct fec_info_s *info = dev->priv;
+ volatile fec_t *fecp = (fec_t *) (info->iobase);
+ int i;
+ u8 *ea = NULL;
+
+ fecpin_setclear(dev, 1);
+
+ fec_reset(dev);
+
+#if defined(CONFIG_CMD_MII) || defined (CONFIG_MII) || \
+ defined (CFG_DISCOVER_PHY)
+
+ mii_init();
+
+ setFecDuplexSpeed(fecp, bd, info->dup_spd);
+#else
+#ifndef CFG_DISCOVER_PHY
+ setFecDuplexSpeed(fecp, bd, (FECDUPLEX << 16) | FECSPEED);
+#endif /* ifndef CFG_DISCOVER_PHY */
+#endif /* CONFIG_CMD_MII || CONFIG_MII */
+
+ /* We use strictly polling mode only */
+ fecp->eimr = 0;
+
+ /* Clear any pending interrupt */
+ fecp->eir = 0xffffffff;
+
+ /* Set station address */
+ if ((u32) fecp == CFG_FEC0_IOBASE) {
+#ifdef CFG_FEC1_IOBASE
+ volatile fec_t *fecp1 = (fec_t *) (CFG_FEC1_IOBASE);
+ ea = &bd->bi_enet1addr[0];
+ fecp1->palr =
+ (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
+ fecp1->paur = (ea[4] << 24) | (ea[5] << 16);
+#endif
+ ea = &bd->bi_enetaddr[0];
+ fecp->palr =
+ (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
+ fecp->paur = (ea[4] << 24) | (ea[5] << 16);
+ } else {
+#ifdef CFG_FEC0_IOBASE
+ volatile fec_t *fecp0 = (fec_t *) (CFG_FEC0_IOBASE);
+ ea = &bd->bi_enetaddr[0];
+ fecp0->palr =
+ (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
+ fecp0->paur = (ea[4] << 24) | (ea[5] << 16);
+#endif
+#ifdef CFG_FEC1_IOBASE
+ ea = &bd->bi_enet1addr[0];
+ fecp->palr =
+ (ea[0] << 24) | (ea[1] << 16) | (ea[2] << 8) | (ea[3]);
+ fecp->paur = (ea[4] << 24) | (ea[5] << 16);
+#endif
+ }
+
+ /* Clear unicast address hash table */
+ fecp->iaur = 0;
+ fecp->ialr = 0;
+
+ /* Clear multicast address hash table */
+ fecp->gaur = 0;
+ fecp->galr = 0;
+
+ /* Set maximum receive buffer size. */
+ fecp->emrbr = PKT_MAXBLR_SIZE;
+
+ /*
+ * Setup Buffers and Buffer Desriptors
+ */
+ info->rxIdx = 0;
+ info->txIdx = 0;
+
+ /*
+ * Setup Receiver Buffer Descriptors (13.14.24.18)
+ * Settings:
+ * Empty, Wrap
+ */
+ for (i = 0; i < PKTBUFSRX; i++) {
+ info->rxbd[i].cbd_sc = BD_ENET_RX_EMPTY;
+ info->rxbd[i].cbd_datlen = 0; /* Reset */
+ info->rxbd[i].cbd_bufaddr = (uint) NetRxPackets[i];
+ }
+ info->rxbd[PKTBUFSRX - 1].cbd_sc |= BD_ENET_RX_WRAP;
+
+ /*
+ * Setup Ethernet Transmitter Buffer Descriptors (13.14.24.19)
+ * Settings:
+ * Last, Tx CRC
+ */
+ for (i = 0; i < TX_BUF_CNT; i++) {
+ info->txbd[i].cbd_sc = BD_ENET_TX_LAST | BD_ENET_TX_TC;
+ info->txbd[i].cbd_datlen = 0; /* Reset */
+ info->txbd[i].cbd_bufaddr = (uint) (&info->txbuf[0]);
+ }
+ info->txbd[TX_BUF_CNT - 1].cbd_sc |= BD_ENET_TX_WRAP;
+
+ /* Set receive and transmit descriptor base */
+ fecp->erdsr = (unsigned int)(&info->rxbd[0]);
+ fecp->etdsr = (unsigned int)(&info->txbd[0]);
+
+ /* Now enable the transmit and receive processing */
+ fecp->ecr |= FEC_ECR_ETHER_EN;
+
+ /* And last, try to fill Rx Buffer Descriptors */
+ fecp->rdar = 0x01000000; /* Descriptor polling active */
+
+ return 1;
+}
+
+void fec_reset(struct eth_device *dev)
+{
+ struct fec_info_s *info = dev->priv;
+ volatile fec_t *fecp = (fec_t *) (info->iobase);
+ int i;
+
+ fecp->ecr = FEC_ECR_RESET;
+ for (i = 0; (fecp->ecr & FEC_ECR_RESET) && (i < FEC_RESET_DELAY); ++i) {
+ udelay(1);
+ }
+ if (i == FEC_RESET_DELAY) {
+ printf("FEC_RESET_DELAY timeout\n");
+ }
+}
+
+void fec_halt(struct eth_device *dev)
+{
+ struct fec_info_s *info = dev->priv;
+
+ fec_reset(dev);
+
+ fecpin_setclear(dev, 0);
+
+ info->rxIdx = info->txIdx = 0;
+ memset(info->rxbd, 0, PKTBUFSRX * sizeof(cbd_t));
+ memset(info->txbd, 0, TX_BUF_CNT * sizeof(cbd_t));
+ memset(info->txbuf, 0, DBUF_LENGTH);
+}
+
+int mcffec_initialize(bd_t * bis)
+{
+ struct eth_device *dev;
+ int i;
+
+ for (i = 0; i < sizeof(fec_info) / sizeof(fec_info[0]); i++) {
+
+ dev =
+ (struct eth_device *)memalign(CFG_CACHELINE_SIZE,
+ sizeof *dev);
+ if (dev == NULL)
+ hang();
+
+ memset(dev, 0, sizeof(*dev));
+
+ sprintf(dev->name, "FEC%d", fec_info[i].index);
+
+ dev->priv = &fec_info[i];
+ dev->init = fec_init;
+ dev->halt = fec_halt;
+ dev->send = fec_send;
+ dev->recv = fec_recv;
+
+ /* setup Receive and Transmit buffer descriptor */
+ fec_info[i].rxbd =
+ (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+ (PKTBUFSRX * sizeof(cbd_t)));
+ fec_info[i].txbd =
+ (cbd_t *) memalign(CFG_CACHELINE_SIZE,
+ (TX_BUF_CNT * sizeof(cbd_t)));
+ fec_info[i].txbuf =
+ (char *)memalign(CFG_CACHELINE_SIZE, DBUF_LENGTH);
+#ifdef ET_DEBUG
+ printf("rxbd %x txbd %x\n",
+ (int)fec_info[i].rxbd, (int)fec_info[i].txbd);
+#endif
+
+ fec_info[i].phy_name = (char *)memalign(CFG_CACHELINE_SIZE, 32);
+
+ eth_register(dev);
+
+#if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
+ miiphy_register(dev->name,
+ mcffec_miiphy_read, mcffec_miiphy_write);
+#endif
+ }
+
+ /* default speed */
+ bis->bi_ethspeed = 10;
+
+ return 1;
+}
+
+#endif /* CONFIG_CMD_NET, FEC_ENET & NET_MULTI */
+#endif /* CONFIG_MCFFEC */
generated by cgit v1.1 at 2024-11-25 05:40:56 +0000