diff options
Diffstat (limited to 'roms/u-boot/drivers/net/tsec.c')
| -rw-r--r-- | roms/u-boot/drivers/net/tsec.c | 963 |
1 files changed, 963 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/net/tsec.c b/roms/u-boot/drivers/net/tsec.c new file mode 100644 index 000000000..ee820aae1 --- /dev/null +++ b/roms/u-boot/drivers/net/tsec.c @@ -0,0 +1,963 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Freescale Three Speed Ethernet Controller driver + * + * Copyright 2004-2011, 2013 Freescale Semiconductor, Inc. + * (C) Copyright 2003, Motorola, Inc. + * author Andy Fleming + */ + +#include <config.h> +#include <common.h> +#include <dm.h> +#include <malloc.h> +#include <net.h> +#include <command.h> +#include <tsec.h> +#include <fsl_mdio.h> +#include <linux/bitops.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <miiphy.h> +#include <asm/processor.h> +#include <asm/io.h> + +#ifndef CONFIG_DM_ETH +/* Default initializations for TSEC controllers. */ + +static struct tsec_info_struct tsec_info[] = { +#ifdef CONFIG_TSEC1 + STD_TSEC_INFO(1), /* TSEC1 */ +#endif +#ifdef CONFIG_TSEC2 + STD_TSEC_INFO(2), /* TSEC2 */ +#endif +#ifdef CONFIG_MPC85XX_FEC + { + .regs = TSEC_GET_REGS(2, 0x2000), + .devname = CONFIG_MPC85XX_FEC_NAME, + .phyaddr = FEC_PHY_ADDR, + .flags = FEC_FLAGS, + .mii_devname = DEFAULT_MII_NAME + }, /* FEC */ +#endif +#ifdef CONFIG_TSEC3 + STD_TSEC_INFO(3), /* TSEC3 */ +#endif +#ifdef CONFIG_TSEC4 + STD_TSEC_INFO(4), /* TSEC4 */ +#endif +}; +#endif /* CONFIG_DM_ETH */ + +#define TBIANA_SETTINGS ( \ + TBIANA_ASYMMETRIC_PAUSE \ + | TBIANA_SYMMETRIC_PAUSE \ + | TBIANA_FULL_DUPLEX \ + ) + +/* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */ +#ifndef CONFIG_TSEC_TBICR_SETTINGS +#define CONFIG_TSEC_TBICR_SETTINGS ( \ + TBICR_PHY_RESET \ + | TBICR_ANEG_ENABLE \ + | TBICR_FULL_DUPLEX \ + | TBICR_SPEED1_SET \ + ) +#endif /* CONFIG_TSEC_TBICR_SETTINGS */ + +/* Configure the TBI for SGMII operation */ +static void tsec_configure_serdes(struct tsec_private *priv) +{ + /* + * Access TBI PHY registers at given TSEC register offset as opposed + * to the register offset used for external PHY accesses + */ + tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa), + 0, TBI_ANA, TBIANA_SETTINGS); + tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa), + 0, TBI_TBICON, TBICON_CLK_SELECT); + tsec_local_mdio_write(priv->phyregs_sgmii, in_be32(&priv->regs->tbipa), + 0, TBI_CR, CONFIG_TSEC_TBICR_SETTINGS); +} + +/* the 'way' for ethernet-CRC-32. Spliced in from Linux lib/crc32.c + * and this is the ethernet-crc method needed for TSEC -- and perhaps + * some other adapter -- hash tables + */ +#define CRCPOLY_LE 0xedb88320 +static u32 ether_crc(size_t len, unsigned char const *p) +{ + int i; + u32 crc; + + crc = ~0; + while (len--) { + crc ^= *p++; + for (i = 0; i < 8; i++) + crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0); + } + /* an reverse the bits, cuz of way they arrive -- last-first */ + crc = (crc >> 16) | (crc << 16); + crc = (crc >> 8 & 0x00ff00ff) | (crc << 8 & 0xff00ff00); + crc = (crc >> 4 & 0x0f0f0f0f) | (crc << 4 & 0xf0f0f0f0); + crc = (crc >> 2 & 0x33333333) | (crc << 2 & 0xcccccccc); + crc = (crc >> 1 & 0x55555555) | (crc << 1 & 0xaaaaaaaa); + return crc; +} + +/* CREDITS: linux gianfar driver, slightly adjusted... thanx. */ + +/* Set the appropriate hash bit for the given addr */ + +/* + * The algorithm works like so: + * 1) Take the Destination Address (ie the multicast address), and + * do a CRC on it (little endian), and reverse the bits of the + * result. + * 2) Use the 8 most significant bits as a hash into a 256-entry + * table. The table is controlled through 8 32-bit registers: + * gaddr0-7. gaddr0's MSB is entry 0, and gaddr7's LSB is entry + * 255. This means that the 3 most significant bits in the + * hash index which gaddr register to use, and the 5 other bits + * indicate which bit (assuming an IBM numbering scheme, which + * for PowerPC (tm) is usually the case) in the register holds + * the entry. + */ +#ifndef CONFIG_DM_ETH +static int tsec_mcast_addr(struct eth_device *dev, const u8 *mcast_mac, + int join) +#else +static int tsec_mcast_addr(struct udevice *dev, const u8 *mcast_mac, int join) +#endif +{ + struct tsec_private *priv; + struct tsec __iomem *regs; + u32 result, value; + u8 whichbit, whichreg; + +#ifndef CONFIG_DM_ETH + priv = (struct tsec_private *)dev->priv; +#else + priv = dev_get_priv(dev); +#endif + regs = priv->regs; + result = ether_crc(MAC_ADDR_LEN, mcast_mac); + whichbit = (result >> 24) & 0x1f; /* the 5 LSB = which bit to set */ + whichreg = result >> 29; /* the 3 MSB = which reg to set it in */ + + value = BIT(31 - whichbit); + + if (join) + setbits_be32(®s->hash.gaddr0 + whichreg, value); + else + clrbits_be32(®s->hash.gaddr0 + whichreg, value); + + return 0; +} + +/* + * Initialized required registers to appropriate values, zeroing + * those we don't care about (unless zero is bad, in which case, + * choose a more appropriate value) + */ +static void init_registers(struct tsec __iomem *regs) +{ + /* Clear IEVENT */ + out_be32(®s->ievent, IEVENT_INIT_CLEAR); + + out_be32(®s->imask, IMASK_INIT_CLEAR); + + out_be32(®s->hash.iaddr0, 0); + out_be32(®s->hash.iaddr1, 0); + out_be32(®s->hash.iaddr2, 0); + out_be32(®s->hash.iaddr3, 0); + out_be32(®s->hash.iaddr4, 0); + out_be32(®s->hash.iaddr5, 0); + out_be32(®s->hash.iaddr6, 0); + out_be32(®s->hash.iaddr7, 0); + + out_be32(®s->hash.gaddr0, 0); + out_be32(®s->hash.gaddr1, 0); + out_be32(®s->hash.gaddr2, 0); + out_be32(®s->hash.gaddr3, 0); + out_be32(®s->hash.gaddr4, 0); + out_be32(®s->hash.gaddr5, 0); + out_be32(®s->hash.gaddr6, 0); + out_be32(®s->hash.gaddr7, 0); + + out_be32(®s->rctrl, 0x00000000); + + /* Init RMON mib registers */ + memset((void *)®s->rmon, 0, sizeof(regs->rmon)); + + out_be32(®s->rmon.cam1, 0xffffffff); + out_be32(®s->rmon.cam2, 0xffffffff); + + out_be32(®s->mrblr, MRBLR_INIT_SETTINGS); + + out_be32(®s->minflr, MINFLR_INIT_SETTINGS); + + out_be32(®s->attr, ATTR_INIT_SETTINGS); + out_be32(®s->attreli, ATTRELI_INIT_SETTINGS); +} + +/* + * Configure maccfg2 based on negotiated speed and duplex + * reported by PHY handling code + */ +static void adjust_link(struct tsec_private *priv, struct phy_device *phydev) +{ + struct tsec __iomem *regs = priv->regs; + u32 ecntrl, maccfg2; + + if (!phydev->link) { + printf("%s: No link.\n", phydev->dev->name); + return; + } + + /* clear all bits relative with interface mode */ + ecntrl = in_be32(®s->ecntrl); + ecntrl &= ~ECNTRL_R100; + + maccfg2 = in_be32(®s->maccfg2); + maccfg2 &= ~(MACCFG2_IF | MACCFG2_FULL_DUPLEX); + + if (phydev->duplex) + maccfg2 |= MACCFG2_FULL_DUPLEX; + + switch (phydev->speed) { + case 1000: + maccfg2 |= MACCFG2_GMII; + break; + case 100: + case 10: + maccfg2 |= MACCFG2_MII; + + /* + * Set R100 bit in all modes although + * it is only used in RGMII mode + */ + if (phydev->speed == 100) + ecntrl |= ECNTRL_R100; + break; + default: + printf("%s: Speed was bad\n", phydev->dev->name); + break; + } + + out_be32(®s->ecntrl, ecntrl); + out_be32(®s->maccfg2, maccfg2); + + printf("Speed: %d, %s duplex%s\n", phydev->speed, + (phydev->duplex) ? "full" : "half", + (phydev->port == PORT_FIBRE) ? ", fiber mode" : ""); +} + +/* + * This returns the status bits of the device. The return value + * is never checked, and this is what the 8260 driver did, so we + * do the same. Presumably, this would be zero if there were no + * errors + */ +#ifndef CONFIG_DM_ETH +static int tsec_send(struct eth_device *dev, void *packet, int length) +#else +static int tsec_send(struct udevice *dev, void *packet, int length) +#endif +{ + struct tsec_private *priv; + struct tsec __iomem *regs; + int result = 0; + u16 status; + int i; + +#ifndef CONFIG_DM_ETH + priv = (struct tsec_private *)dev->priv; +#else + priv = dev_get_priv(dev); +#endif + regs = priv->regs; + /* Find an empty buffer descriptor */ + for (i = 0; + in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY; + i++) { + if (i >= TOUT_LOOP) { + printf("%s: tsec: tx buffers full\n", dev->name); + return result; + } + } + + out_be32(&priv->txbd[priv->tx_idx].bufptr, (u32)packet); + out_be16(&priv->txbd[priv->tx_idx].length, length); + status = in_be16(&priv->txbd[priv->tx_idx].status); + out_be16(&priv->txbd[priv->tx_idx].status, status | + (TXBD_READY | TXBD_LAST | TXBD_CRC | TXBD_INTERRUPT)); + + /* Tell the DMA to go */ + out_be32(®s->tstat, TSTAT_CLEAR_THALT); + + /* Wait for buffer to be transmitted */ + for (i = 0; + in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_READY; + i++) { + if (i >= TOUT_LOOP) { + printf("%s: tsec: tx error\n", dev->name); + return result; + } + } + + priv->tx_idx = (priv->tx_idx + 1) % TX_BUF_CNT; + result = in_be16(&priv->txbd[priv->tx_idx].status) & TXBD_STATS; + + return result; +} + +#ifndef CONFIG_DM_ETH +static int tsec_recv(struct eth_device *dev) +{ + struct tsec_private *priv = (struct tsec_private *)dev->priv; + struct tsec __iomem *regs = priv->regs; + + while (!(in_be16(&priv->rxbd[priv->rx_idx].status) & RXBD_EMPTY)) { + int length = in_be16(&priv->rxbd[priv->rx_idx].length); + u16 status = in_be16(&priv->rxbd[priv->rx_idx].status); + uchar *packet = net_rx_packets[priv->rx_idx]; + + /* Send the packet up if there were no errors */ + if (!(status & RXBD_STATS)) + net_process_received_packet(packet, length - 4); + else + printf("Got error %x\n", (status & RXBD_STATS)); + + out_be16(&priv->rxbd[priv->rx_idx].length, 0); + + status = RXBD_EMPTY; + /* Set the wrap bit if this is the last element in the list */ + if ((priv->rx_idx + 1) == PKTBUFSRX) + status |= RXBD_WRAP; + out_be16(&priv->rxbd[priv->rx_idx].status, status); + + priv->rx_idx = (priv->rx_idx + 1) % PKTBUFSRX; + } + + if (in_be32(®s->ievent) & IEVENT_BSY) { + out_be32(®s->ievent, IEVENT_BSY); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + } + + return -1; +} +#else +static int tsec_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct tsec_private *priv = (struct tsec_private *)dev_get_priv(dev); + struct tsec __iomem *regs = priv->regs; + int ret = -1; + + if (!(in_be16(&priv->rxbd[priv->rx_idx].status) & RXBD_EMPTY)) { + int length = in_be16(&priv->rxbd[priv->rx_idx].length); + u16 status = in_be16(&priv->rxbd[priv->rx_idx].status); + u32 buf; + + /* Send the packet up if there were no errors */ + if (!(status & RXBD_STATS)) { + buf = in_be32(&priv->rxbd[priv->rx_idx].bufptr); + *packetp = (uchar *)buf; + ret = length - 4; + } else { + printf("Got error %x\n", (status & RXBD_STATS)); + } + } + + if (in_be32(®s->ievent) & IEVENT_BSY) { + out_be32(®s->ievent, IEVENT_BSY); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + } + + return ret; +} + +static int tsec_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + struct tsec_private *priv = (struct tsec_private *)dev_get_priv(dev); + u16 status; + + out_be16(&priv->rxbd[priv->rx_idx].length, 0); + + status = RXBD_EMPTY; + /* Set the wrap bit if this is the last element in the list */ + if ((priv->rx_idx + 1) == PKTBUFSRX) + status |= RXBD_WRAP; + out_be16(&priv->rxbd[priv->rx_idx].status, status); + + priv->rx_idx = (priv->rx_idx + 1) % PKTBUFSRX; + + return 0; +} +#endif + +/* Stop the interface */ +#ifndef CONFIG_DM_ETH +static void tsec_halt(struct eth_device *dev) +#else +static void tsec_halt(struct udevice *dev) +#endif +{ + struct tsec_private *priv; + struct tsec __iomem *regs; +#ifndef CONFIG_DM_ETH + priv = (struct tsec_private *)dev->priv; +#else + priv = dev_get_priv(dev); +#endif + regs = priv->regs; + + clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); + setbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); + + while ((in_be32(®s->ievent) & (IEVENT_GRSC | IEVENT_GTSC)) + != (IEVENT_GRSC | IEVENT_GTSC)) + ; + + clrbits_be32(®s->maccfg1, MACCFG1_TX_EN | MACCFG1_RX_EN); + + /* Shut down the PHY, as needed */ + phy_shutdown(priv->phydev); +} + +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 +/* + * When MACCFG1[Rx_EN] is enabled during system boot as part + * of the eTSEC port initialization sequence, + * the eTSEC Rx logic may not be properly initialized. + */ +void redundant_init(struct tsec_private *priv) +{ + struct tsec __iomem *regs = priv->regs; + uint t, count = 0; + int fail = 1; + static const u8 pkt[] = { + 0x00, 0x1e, 0x4f, 0x12, 0xcb, 0x2c, 0x00, 0x25, + 0x64, 0xbb, 0xd1, 0xab, 0x08, 0x00, 0x45, 0x00, + 0x00, 0x5c, 0xdd, 0x22, 0x00, 0x00, 0x80, 0x01, + 0x1f, 0x71, 0x0a, 0xc1, 0x14, 0x22, 0x0a, 0xc1, + 0x14, 0x6a, 0x08, 0x00, 0xef, 0x7e, 0x02, 0x00, + 0x94, 0x05, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, + 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, + 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, + 0x77, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, + 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, + 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, + 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, + 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, + 0x71, 0x72}; + + /* Enable promiscuous mode */ + setbits_be32(®s->rctrl, 0x8); + /* Enable loopback mode */ + setbits_be32(®s->maccfg1, MACCFG1_LOOPBACK); + /* Enable transmit and receive */ + setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN); + + /* Tell the DMA it is clear to go */ + setbits_be32(®s->dmactrl, DMACTRL_INIT_SETTINGS); + out_be32(®s->tstat, TSTAT_CLEAR_THALT); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); + + do { + u16 status; + + tsec_send(priv->dev, (void *)pkt, sizeof(pkt)); + + /* Wait for buffer to be received */ + for (t = 0; + in_be16(&priv->rxbd[priv->rx_idx].status) & RXBD_EMPTY; + t++) { + if (t >= 10 * TOUT_LOOP) { + printf("%s: tsec: rx error\n", priv->dev->name); + break; + } + } + + if (!memcmp(pkt, net_rx_packets[priv->rx_idx], sizeof(pkt))) + fail = 0; + + out_be16(&priv->rxbd[priv->rx_idx].length, 0); + status = RXBD_EMPTY; + if ((priv->rx_idx + 1) == PKTBUFSRX) + status |= RXBD_WRAP; + out_be16(&priv->rxbd[priv->rx_idx].status, status); + priv->rx_idx = (priv->rx_idx + 1) % PKTBUFSRX; + + if (in_be32(®s->ievent) & IEVENT_BSY) { + out_be32(®s->ievent, IEVENT_BSY); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + } + if (fail) { + printf("loopback recv packet error!\n"); + clrbits_be32(®s->maccfg1, MACCFG1_RX_EN); + udelay(1000); + setbits_be32(®s->maccfg1, MACCFG1_RX_EN); + } + } while ((count++ < 4) && (fail == 1)); + + if (fail) + panic("eTSEC init fail!\n"); + /* Disable promiscuous mode */ + clrbits_be32(®s->rctrl, 0x8); + /* Disable loopback mode */ + clrbits_be32(®s->maccfg1, MACCFG1_LOOPBACK); +} +#endif + +/* + * Set up the buffers and their descriptors, and bring up the + * interface + */ +static void startup_tsec(struct tsec_private *priv) +{ + struct tsec __iomem *regs = priv->regs; + u16 status; + int i; + + /* reset the indices to zero */ + priv->rx_idx = 0; + priv->tx_idx = 0; +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 + uint svr; +#endif + + /* Point to the buffer descriptors */ + out_be32(®s->tbase, (u32)&priv->txbd[0]); + out_be32(®s->rbase, (u32)&priv->rxbd[0]); + + /* Initialize the Rx Buffer descriptors */ + for (i = 0; i < PKTBUFSRX; i++) { + out_be16(&priv->rxbd[i].status, RXBD_EMPTY); + out_be16(&priv->rxbd[i].length, 0); + out_be32(&priv->rxbd[i].bufptr, (u32)net_rx_packets[i]); + } + status = in_be16(&priv->rxbd[PKTBUFSRX - 1].status); + out_be16(&priv->rxbd[PKTBUFSRX - 1].status, status | RXBD_WRAP); + + /* Initialize the TX Buffer Descriptors */ + for (i = 0; i < TX_BUF_CNT; i++) { + out_be16(&priv->txbd[i].status, 0); + out_be16(&priv->txbd[i].length, 0); + out_be32(&priv->txbd[i].bufptr, 0); + } + status = in_be16(&priv->txbd[TX_BUF_CNT - 1].status); + out_be16(&priv->txbd[TX_BUF_CNT - 1].status, status | TXBD_WRAP); + +#ifdef CONFIG_SYS_FSL_ERRATUM_NMG_ETSEC129 + svr = get_svr(); + if ((SVR_MAJ(svr) == 1) || IS_SVR_REV(svr, 2, 0)) + redundant_init(priv); +#endif + /* Enable Transmit and Receive */ + setbits_be32(®s->maccfg1, MACCFG1_RX_EN | MACCFG1_TX_EN); + + /* Tell the DMA it is clear to go */ + setbits_be32(®s->dmactrl, DMACTRL_INIT_SETTINGS); + out_be32(®s->tstat, TSTAT_CLEAR_THALT); + out_be32(®s->rstat, RSTAT_CLEAR_RHALT); + clrbits_be32(®s->dmactrl, DMACTRL_GRS | DMACTRL_GTS); +} + +/* + * Initializes data structures and registers for the controller, + * and brings the interface up. Returns the link status, meaning + * that it returns success if the link is up, failure otherwise. + * This allows U-Boot to find the first active controller. + */ +#ifndef CONFIG_DM_ETH +static int tsec_init(struct eth_device *dev, struct bd_info *bd) +#else +static int tsec_init(struct udevice *dev) +#endif +{ + struct tsec_private *priv; + struct tsec __iomem *regs; +#ifdef CONFIG_DM_ETH + struct eth_pdata *pdata = dev_get_plat(dev); +#else + struct eth_device *pdata = dev; +#endif + u32 tempval; + int ret; + +#ifndef CONFIG_DM_ETH + priv = (struct tsec_private *)dev->priv; +#else + priv = dev_get_priv(dev); +#endif + regs = priv->regs; + /* Make sure the controller is stopped */ + tsec_halt(dev); + + /* Init MACCFG2. Defaults to GMII */ + out_be32(®s->maccfg2, MACCFG2_INIT_SETTINGS); + + /* Init ECNTRL */ + out_be32(®s->ecntrl, ECNTRL_INIT_SETTINGS); + + /* + * Copy the station address into the address registers. + * For a station address of 0x12345678ABCD in transmission + * order (BE), MACnADDR1 is set to 0xCDAB7856 and + * MACnADDR2 is set to 0x34120000. + */ + tempval = (pdata->enetaddr[5] << 24) | (pdata->enetaddr[4] << 16) | + (pdata->enetaddr[3] << 8) | pdata->enetaddr[2]; + + out_be32(®s->macstnaddr1, tempval); + + tempval = (pdata->enetaddr[1] << 24) | (pdata->enetaddr[0] << 16); + + out_be32(®s->macstnaddr2, tempval); + + /* Clear out (for the most part) the other registers */ + init_registers(regs); + + /* Ready the device for tx/rx */ + startup_tsec(priv); + + /* Start up the PHY */ + ret = phy_startup(priv->phydev); + if (ret) { + printf("Could not initialize PHY %s\n", + priv->phydev->dev->name); + return ret; + } + + adjust_link(priv, priv->phydev); + + /* If there's no link, fail */ + return priv->phydev->link ? 0 : -1; +} + +static phy_interface_t tsec_get_interface(struct tsec_private *priv) +{ + struct tsec __iomem *regs = priv->regs; + u32 ecntrl; + + ecntrl = in_be32(®s->ecntrl); + + if (ecntrl & ECNTRL_SGMII_MODE) + return PHY_INTERFACE_MODE_SGMII; + + if (ecntrl & ECNTRL_TBI_MODE) { + if (ecntrl & ECNTRL_REDUCED_MODE) + return PHY_INTERFACE_MODE_RTBI; + else + return PHY_INTERFACE_MODE_TBI; + } + + if (ecntrl & ECNTRL_REDUCED_MODE) { + phy_interface_t interface; + + if (ecntrl & ECNTRL_REDUCED_MII_MODE) + return PHY_INTERFACE_MODE_RMII; + + interface = priv->interface; + + /* + * This isn't autodetected, so it must + * be set by the platform code. + */ + if (interface == PHY_INTERFACE_MODE_RGMII_ID || + interface == PHY_INTERFACE_MODE_RGMII_TXID || + interface == PHY_INTERFACE_MODE_RGMII_RXID) + return interface; + + return PHY_INTERFACE_MODE_RGMII; + } + + if (priv->flags & TSEC_GIGABIT) + return PHY_INTERFACE_MODE_GMII; + + return PHY_INTERFACE_MODE_MII; +} + +/* + * Discover which PHY is attached to the device, and configure it + * properly. If the PHY is not recognized, then return 0 + * (failure). Otherwise, return 1 + */ +static int init_phy(struct tsec_private *priv) +{ + struct phy_device *phydev; + struct tsec __iomem *regs = priv->regs; + u32 supported = (SUPPORTED_10baseT_Half | + SUPPORTED_10baseT_Full | + SUPPORTED_100baseT_Half | + SUPPORTED_100baseT_Full); + + if (priv->flags & TSEC_GIGABIT) + supported |= SUPPORTED_1000baseT_Full; + + /* Assign a Physical address to the TBI */ + out_be32(®s->tbipa, priv->tbiaddr); + + priv->interface = tsec_get_interface(priv); + + if (priv->interface == PHY_INTERFACE_MODE_SGMII) + tsec_configure_serdes(priv); + +#if defined(CONFIG_DM_ETH) && defined(CONFIG_DM_MDIO) + phydev = dm_eth_phy_connect(priv->dev); +#else + phydev = phy_connect(priv->bus, priv->phyaddr, priv->dev, + priv->interface); +#endif + if (!phydev) + return 0; + + phydev->supported &= supported; + phydev->advertising = phydev->supported; + + priv->phydev = phydev; + + phy_config(phydev); + + return 1; +} + +#ifndef CONFIG_DM_ETH +/* + * Initialize device structure. Returns success if PHY + * initialization succeeded (i.e. if it recognizes the PHY) + */ +static int tsec_initialize(struct bd_info *bis, + struct tsec_info_struct *tsec_info) +{ + struct tsec_private *priv; + struct eth_device *dev; + int i; + + dev = (struct eth_device *)malloc(sizeof(*dev)); + + if (!dev) + return 0; + + memset(dev, 0, sizeof(*dev)); + + priv = (struct tsec_private *)malloc(sizeof(*priv)); + + if (!priv) { + free(dev); + return 0; + } + + priv->regs = tsec_info->regs; + priv->phyregs_sgmii = tsec_info->miiregs_sgmii; + + priv->phyaddr = tsec_info->phyaddr; + priv->tbiaddr = CONFIG_SYS_TBIPA_VALUE; + priv->flags = tsec_info->flags; + + strcpy(dev->name, tsec_info->devname); + priv->interface = tsec_info->interface; + priv->bus = miiphy_get_dev_by_name(tsec_info->mii_devname); + priv->dev = dev; + dev->iobase = 0; + dev->priv = priv; + dev->init = tsec_init; + dev->halt = tsec_halt; + dev->send = tsec_send; + dev->recv = tsec_recv; + dev->mcast = tsec_mcast_addr; + + /* Tell U-Boot to get the addr from the env */ + for (i = 0; i < 6; i++) + dev->enetaddr[i] = 0; + + eth_register(dev); + + /* Reset the MAC */ + setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET); + udelay(2); /* Soft Reset must be asserted for 3 TX clocks */ + clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET); + + /* Try to initialize PHY here, and return */ + return init_phy(priv); +} + +/* + * Initialize all the TSEC devices + * + * Returns the number of TSEC devices that were initialized + */ +int tsec_eth_init(struct bd_info *bis, struct tsec_info_struct *tsecs, + int num) +{ + int i; + int count = 0; + + for (i = 0; i < num; i++) { + int ret = tsec_initialize(bis, &tsecs[i]); + + if (ret > 0) + count += ret; + } + + return count; +} + +int tsec_standard_init(struct bd_info *bis) +{ + struct fsl_pq_mdio_info info; + + info.regs = TSEC_GET_MDIO_REGS_BASE(1); + info.name = DEFAULT_MII_NAME; + + fsl_pq_mdio_init(bis, &info); + + return tsec_eth_init(bis, tsec_info, ARRAY_SIZE(tsec_info)); +} +#else /* CONFIG_DM_ETH */ +int tsec_probe(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_plat(dev); + struct tsec_private *priv = dev_get_priv(dev); + struct ofnode_phandle_args phandle_args; + u32 tbiaddr = CONFIG_SYS_TBIPA_VALUE; + struct tsec_data *data; + const char *phy_mode; + ofnode parent, child; + fdt_addr_t reg; + u32 max_speed; + int ret; + + data = (struct tsec_data *)dev_get_driver_data(dev); + + pdata->iobase = (phys_addr_t)dev_read_addr(dev); + if (pdata->iobase == FDT_ADDR_T_NONE) { + ofnode_for_each_subnode(child, dev_ofnode(dev)) { + if (strncmp(ofnode_get_name(child), "queue-group", + strlen("queue-group"))) + continue; + + reg = ofnode_get_addr(child); + if (reg == FDT_ADDR_T_NONE) { + printf("No 'reg' property of <queue-group>\n"); + return -ENOENT; + } + pdata->iobase = reg; + + /* + * if there are multiple queue groups, + * only the first one is used. + */ + break; + } + + if (!ofnode_valid(child)) { + printf("No child node for <queue-group>?\n"); + return -ENOENT; + } + } + + priv->regs = map_physmem(pdata->iobase, 0, MAP_NOCACHE); + + ret = dev_read_phandle_with_args(dev, "tbi-handle", NULL, 0, 0, + &phandle_args); + if (ret == 0) { + ofnode_read_u32(phandle_args.node, "reg", &tbiaddr); + + parent = ofnode_get_parent(phandle_args.node); + if (!ofnode_valid(parent)) { + printf("No parent node for TBI PHY?\n"); + return -ENOENT; + } + + reg = ofnode_get_addr_index(parent, 0); + if (reg == FDT_ADDR_T_NONE) { + printf("No 'reg' property of MII for TBI PHY\n"); + return -ENOENT; + } + + priv->phyregs_sgmii = map_physmem(reg + data->mdio_regs_off, + 0, MAP_NOCACHE); + } + + priv->tbiaddr = tbiaddr; + + phy_mode = dev_read_prop(dev, "phy-connection-type", NULL); + if (phy_mode) + pdata->phy_interface = phy_get_interface_by_name(phy_mode); + if (pdata->phy_interface == -1) { + printf("Invalid PHY interface '%s'\n", phy_mode); + return -EINVAL; + } + priv->interface = pdata->phy_interface; + + /* Check for speed limit, default is 1000Mbps */ + max_speed = dev_read_u32_default(dev, "max-speed", 1000); + + /* Initialize flags */ + if (max_speed == 1000) + priv->flags = TSEC_GIGABIT; + if (priv->interface == PHY_INTERFACE_MODE_SGMII) + priv->flags |= TSEC_SGMII; + + /* Reset the MAC */ + setbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET); + udelay(2); /* Soft Reset must be asserted for 3 TX clocks */ + clrbits_be32(&priv->regs->maccfg1, MACCFG1_SOFT_RESET); + + priv->dev = dev; + priv->bus = miiphy_get_dev_by_name(dev->name); + + /* Try to initialize PHY here, and return */ + return !init_phy(priv); +} + +int tsec_remove(struct udevice *dev) +{ + struct tsec_private *priv = dev_get_priv(dev); + + free(priv->phydev); + mdio_unregister(priv->bus); + mdio_free(priv->bus); + + return 0; +} + +static const struct eth_ops tsec_ops = { + .start = tsec_init, + .send = tsec_send, + .recv = tsec_recv, + .free_pkt = tsec_free_pkt, + .stop = tsec_halt, + .mcast = tsec_mcast_addr, +}; + +static struct tsec_data etsec2_data = { + .mdio_regs_off = TSEC_MDIO_REGS_OFFSET, +}; + +static struct tsec_data gianfar_data = { + .mdio_regs_off = 0x0, +}; + +static const struct udevice_id tsec_ids[] = { + { .compatible = "fsl,etsec2", .data = (ulong)&etsec2_data }, + { .compatible = "gianfar", .data = (ulong)&gianfar_data }, + { } +}; + +U_BOOT_DRIVER(eth_tsec) = { + .name = "tsec", + .id = UCLASS_ETH, + .of_match = tsec_ids, + .probe = tsec_probe, + .remove = tsec_remove, + .ops = &tsec_ops, + .priv_auto = sizeof(struct tsec_private), + .plat_auto = sizeof(struct eth_pdata), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; +#endif /* CONFIG_DM_ETH */ |