Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-30 00:21:06 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/net/ethoc.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

836 lines
19 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Opencore 10/100 ethernet mac driver
*
* Copyright (C) 2007-2008 Avionic Design Development GmbH
* Copyright (C) 2008-2009 Avionic Design GmbH
* Thierry Reding <thierry.reding@avionic-design.de>
* Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
* Copyright (C) 2016 Cadence Design Systems Inc.
*/
#include <common.h>
#include <dm.h>
#include <dm/platform_data/net_ethoc.h>
#include <linux/io.h>
#include <malloc.h>
#include <net.h>
#include <miiphy.h>
#include <asm/cache.h>
#include <wait_bit.h>
/* register offsets */
#define MODER 0x00
#define INT_SOURCE 0x04
#define INT_MASK 0x08
#define IPGT 0x0c
#define IPGR1 0x10
#define IPGR2 0x14
#define PACKETLEN 0x18
#define COLLCONF 0x1c
#define TX_BD_NUM 0x20
#define CTRLMODER 0x24
#define MIIMODER 0x28
#define MIICOMMAND 0x2c
#define MIIADDRESS 0x30
#define MIITX_DATA 0x34
#define MIIRX_DATA 0x38
#define MIISTATUS 0x3c
#define MAC_ADDR0 0x40
#define MAC_ADDR1 0x44
#define ETH_HASH0 0x48
#define ETH_HASH1 0x4c
#define ETH_TXCTRL 0x50
/* mode register */
#define MODER_RXEN (1 << 0) /* receive enable */
#define MODER_TXEN (1 << 1) /* transmit enable */
#define MODER_NOPRE (1 << 2) /* no preamble */
#define MODER_BRO (1 << 3) /* broadcast address */
#define MODER_IAM (1 << 4) /* individual address mode */
#define MODER_PRO (1 << 5) /* promiscuous mode */
#define MODER_IFG (1 << 6) /* interframe gap for incoming frames */
#define MODER_LOOP (1 << 7) /* loopback */
#define MODER_NBO (1 << 8) /* no back-off */
#define MODER_EDE (1 << 9) /* excess defer enable */
#define MODER_FULLD (1 << 10) /* full duplex */
#define MODER_RESET (1 << 11) /* FIXME: reset (undocumented) */
#define MODER_DCRC (1 << 12) /* delayed CRC enable */
#define MODER_CRC (1 << 13) /* CRC enable */
#define MODER_HUGE (1 << 14) /* huge packets enable */
#define MODER_PAD (1 << 15) /* padding enabled */
#define MODER_RSM (1 << 16) /* receive small packets */
/* interrupt source and mask registers */
#define INT_MASK_TXF (1 << 0) /* transmit frame */
#define INT_MASK_TXE (1 << 1) /* transmit error */
#define INT_MASK_RXF (1 << 2) /* receive frame */
#define INT_MASK_RXE (1 << 3) /* receive error */
#define INT_MASK_BUSY (1 << 4)
#define INT_MASK_TXC (1 << 5) /* transmit control frame */
#define INT_MASK_RXC (1 << 6) /* receive control frame */
#define INT_MASK_TX (INT_MASK_TXF | INT_MASK_TXE)
#define INT_MASK_RX (INT_MASK_RXF | INT_MASK_RXE)
#define INT_MASK_ALL ( \
INT_MASK_TXF | INT_MASK_TXE | \
INT_MASK_RXF | INT_MASK_RXE | \
INT_MASK_TXC | INT_MASK_RXC | \
INT_MASK_BUSY \
)
/* packet length register */
#define PACKETLEN_MIN(min) (((min) & 0xffff) << 16)
#define PACKETLEN_MAX(max) (((max) & 0xffff) << 0)
#define PACKETLEN_MIN_MAX(min, max) (PACKETLEN_MIN(min) | \
PACKETLEN_MAX(max))
/* transmit buffer number register */
#define TX_BD_NUM_VAL(x) (((x) <= 0x80) ? (x) : 0x80)
/* control module mode register */
#define CTRLMODER_PASSALL (1 << 0) /* pass all receive frames */
#define CTRLMODER_RXFLOW (1 << 1) /* receive control flow */
#define CTRLMODER_TXFLOW (1 << 2) /* transmit control flow */
/* MII mode register */
#define MIIMODER_CLKDIV(x) ((x) & 0xfe) /* needs to be an even number */
#define MIIMODER_NOPRE (1 << 8) /* no preamble */
/* MII command register */
#define MIICOMMAND_SCAN (1 << 0) /* scan status */
#define MIICOMMAND_READ (1 << 1) /* read status */
#define MIICOMMAND_WRITE (1 << 2) /* write control data */
/* MII address register */
#define MIIADDRESS_FIAD(x) (((x) & 0x1f) << 0)
#define MIIADDRESS_RGAD(x) (((x) & 0x1f) << 8)
#define MIIADDRESS_ADDR(phy, reg) (MIIADDRESS_FIAD(phy) | \
MIIADDRESS_RGAD(reg))
/* MII transmit data register */
#define MIITX_DATA_VAL(x) ((x) & 0xffff)
/* MII receive data register */
#define MIIRX_DATA_VAL(x) ((x) & 0xffff)
/* MII status register */
#define MIISTATUS_LINKFAIL (1 << 0)
#define MIISTATUS_BUSY (1 << 1)
#define MIISTATUS_INVALID (1 << 2)
/* TX buffer descriptor */
#define TX_BD_CS (1 << 0) /* carrier sense lost */
#define TX_BD_DF (1 << 1) /* defer indication */
#define TX_BD_LC (1 << 2) /* late collision */
#define TX_BD_RL (1 << 3) /* retransmission limit */
#define TX_BD_RETRY_MASK (0x00f0)
#define TX_BD_RETRY(x) (((x) & 0x00f0) >> 4)
#define TX_BD_UR (1 << 8) /* transmitter underrun */
#define TX_BD_CRC (1 << 11) /* TX CRC enable */
#define TX_BD_PAD (1 << 12) /* pad enable */
#define TX_BD_WRAP (1 << 13)
#define TX_BD_IRQ (1 << 14) /* interrupt request enable */
#define TX_BD_READY (1 << 15) /* TX buffer ready */
#define TX_BD_LEN(x) (((x) & 0xffff) << 16)
#define TX_BD_LEN_MASK (0xffff << 16)
#define TX_BD_STATS (TX_BD_CS | TX_BD_DF | TX_BD_LC | \
TX_BD_RL | TX_BD_RETRY_MASK | TX_BD_UR)
/* RX buffer descriptor */
#define RX_BD_LC (1 << 0) /* late collision */
#define RX_BD_CRC (1 << 1) /* RX CRC error */
#define RX_BD_SF (1 << 2) /* short frame */
#define RX_BD_TL (1 << 3) /* too long */
#define RX_BD_DN (1 << 4) /* dribble nibble */
#define RX_BD_IS (1 << 5) /* invalid symbol */
#define RX_BD_OR (1 << 6) /* receiver overrun */
#define RX_BD_MISS (1 << 7)
#define RX_BD_CF (1 << 8) /* control frame */
#define RX_BD_WRAP (1 << 13)
#define RX_BD_IRQ (1 << 14) /* interrupt request enable */
#define RX_BD_EMPTY (1 << 15)
#define RX_BD_LEN(x) (((x) & 0xffff) << 16)
#define RX_BD_STATS (RX_BD_LC | RX_BD_CRC | RX_BD_SF | RX_BD_TL | \
RX_BD_DN | RX_BD_IS | RX_BD_OR | RX_BD_MISS)
#define ETHOC_BUFSIZ 1536
#define ETHOC_ZLEN 64
#define ETHOC_BD_BASE 0x400
#define ETHOC_TIMEOUT (HZ / 2)
#define ETHOC_MII_TIMEOUT (1 + (HZ / 5))
#define ETHOC_IOSIZE 0x54
/**
* struct ethoc - driver-private device structure
* @num_tx: number of send buffers
* @cur_tx: last send buffer written
* @dty_tx: last buffer actually sent
* @num_rx: number of receive buffers
* @cur_rx: current receive buffer
*/
struct ethoc {
u32 num_tx;
u32 cur_tx;
u32 dty_tx;
u32 num_rx;
u32 cur_rx;
void __iomem *iobase;
void __iomem *packet;
phys_addr_t packet_phys;
#ifdef CONFIG_PHYLIB
struct mii_dev *bus;
struct phy_device *phydev;
#endif
};
/**
* struct ethoc_bd - buffer descriptor
* @stat: buffer statistics
* @addr: physical memory address
*/
struct ethoc_bd {
u32 stat;
u32 addr;
};
static inline u32 *ethoc_reg(struct ethoc *priv, size_t offset)
{
return priv->iobase + offset;
}
static inline u32 ethoc_read(struct ethoc *priv, size_t offset)
{
return readl(ethoc_reg(priv, offset));
}
static inline void ethoc_write(struct ethoc *priv, size_t offset, u32 data)
{
writel(data, ethoc_reg(priv, offset));
}
static inline void ethoc_read_bd(struct ethoc *priv, int index,
struct ethoc_bd *bd)
{
size_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
bd->stat = ethoc_read(priv, offset + 0);
bd->addr = ethoc_read(priv, offset + 4);
}
static inline void ethoc_write_bd(struct ethoc *priv, int index,
const struct ethoc_bd *bd)
{
size_t offset = ETHOC_BD_BASE + (index * sizeof(struct ethoc_bd));
ethoc_write(priv, offset + 0, bd->stat);
ethoc_write(priv, offset + 4, bd->addr);
}
static int ethoc_write_hwaddr_common(struct ethoc *priv, u8 *mac)
{
ethoc_write(priv, MAC_ADDR0, (mac[2] << 24) | (mac[3] << 16) |
(mac[4] << 8) | (mac[5] << 0));
ethoc_write(priv, MAC_ADDR1, (mac[0] << 8) | (mac[1] << 0));
return 0;
}
static inline void ethoc_ack_irq(struct ethoc *priv, u32 mask)
{
ethoc_write(priv, INT_SOURCE, mask);
}
static inline void ethoc_enable_rx_and_tx(struct ethoc *priv)
{
u32 mode = ethoc_read(priv, MODER);
mode |= MODER_RXEN | MODER_TXEN;
ethoc_write(priv, MODER, mode);
}
static inline void ethoc_disable_rx_and_tx(struct ethoc *priv)
{
u32 mode = ethoc_read(priv, MODER);
mode &= ~(MODER_RXEN | MODER_TXEN);
ethoc_write(priv, MODER, mode);
}
static int ethoc_init_ring(struct ethoc *priv)
{
struct ethoc_bd bd;
phys_addr_t addr = priv->packet_phys;
int i;
priv->cur_tx = 0;
priv->dty_tx = 0;
priv->cur_rx = 0;
/* setup transmission buffers */
bd.stat = TX_BD_IRQ | TX_BD_CRC;
bd.addr = 0;
for (i = 0; i < priv->num_tx; i++) {
if (addr) {
bd.addr = addr;
addr += PKTSIZE_ALIGN;
}
if (i == priv->num_tx - 1)
bd.stat |= TX_BD_WRAP;
ethoc_write_bd(priv, i, &bd);
}
bd.stat = RX_BD_EMPTY | RX_BD_IRQ;
for (i = 0; i < priv->num_rx; i++) {
if (addr) {
bd.addr = addr;
addr += PKTSIZE_ALIGN;
} else {
bd.addr = virt_to_phys(net_rx_packets[i]);
}
if (i == priv->num_rx - 1)
bd.stat |= RX_BD_WRAP;
flush_dcache_range((ulong)net_rx_packets[i],
(ulong)net_rx_packets[i] + PKTSIZE_ALIGN);
ethoc_write_bd(priv, priv->num_tx + i, &bd);
}
return 0;
}
static int ethoc_reset(struct ethoc *priv)
{
u32 mode;
/* TODO: reset controller? */
ethoc_disable_rx_and_tx(priv);
/* TODO: setup registers */
/* enable FCS generation and automatic padding */
mode = ethoc_read(priv, MODER);
mode |= MODER_CRC | MODER_PAD;
ethoc_write(priv, MODER, mode);
/* set full-duplex mode */
mode = ethoc_read(priv, MODER);
mode |= MODER_FULLD;
ethoc_write(priv, MODER, mode);
ethoc_write(priv, IPGT, 0x15);
ethoc_ack_irq(priv, INT_MASK_ALL);
ethoc_enable_rx_and_tx(priv);
return 0;
}
static int ethoc_init_common(struct ethoc *priv)
{
int ret = 0;
priv->num_tx = 1;
priv->num_rx = PKTBUFSRX;
ethoc_write(priv, TX_BD_NUM, priv->num_tx);
ethoc_init_ring(priv);
ethoc_reset(priv);
#ifdef CONFIG_PHYLIB
ret = phy_startup(priv->phydev);
if (ret) {
printf("Could not initialize PHY %s\n",
priv->phydev->dev->name);
return ret;
}
#endif
return ret;
}
static void ethoc_stop_common(struct ethoc *priv)
{
ethoc_disable_rx_and_tx(priv);
#ifdef CONFIG_PHYLIB
phy_shutdown(priv->phydev);
#endif
}
static int ethoc_update_rx_stats(struct ethoc_bd *bd)
{
int ret = 0;
if (bd->stat & RX_BD_TL) {
debug("ETHOC: " "RX: frame too long\n");
ret++;
}
if (bd->stat & RX_BD_SF) {
debug("ETHOC: " "RX: frame too short\n");
ret++;
}
if (bd->stat & RX_BD_DN)
debug("ETHOC: " "RX: dribble nibble\n");
if (bd->stat & RX_BD_CRC) {
debug("ETHOC: " "RX: wrong CRC\n");
ret++;
}
if (bd->stat & RX_BD_OR) {
debug("ETHOC: " "RX: overrun\n");
ret++;
}
if (bd->stat & RX_BD_LC) {
debug("ETHOC: " "RX: late collision\n");
ret++;
}
return ret;
}
static int ethoc_rx_common(struct ethoc *priv, uchar **packetp)
{
struct ethoc_bd bd;
u32 i = priv->cur_rx % priv->num_rx;
u32 entry = priv->num_tx + i;
ethoc_read_bd(priv, entry, &bd);
if (bd.stat & RX_BD_EMPTY)
return -EAGAIN;
debug("%s(): RX buffer %d, %x received\n",
__func__, priv->cur_rx, bd.stat);
if (ethoc_update_rx_stats(&bd) == 0) {
int size = bd.stat >> 16;
size -= 4; /* strip the CRC */
if (priv->packet)
*packetp = priv->packet + entry * PKTSIZE_ALIGN;
else
*packetp = net_rx_packets[i];
return size;
} else {
return 0;
}
}
static int ethoc_is_new_packet_received(struct ethoc *priv)
{
u32 pending;
pending = ethoc_read(priv, INT_SOURCE);
ethoc_ack_irq(priv, pending);
if (pending & INT_MASK_BUSY)
debug("%s(): packet dropped\n", __func__);
if (pending & INT_MASK_RX) {
debug("%s(): rx irq\n", __func__);
return 1;
}
return 0;
}
static int ethoc_update_tx_stats(struct ethoc_bd *bd)
{
if (bd->stat & TX_BD_LC)
debug("ETHOC: " "TX: late collision\n");
if (bd->stat & TX_BD_RL)
debug("ETHOC: " "TX: retransmit limit\n");
if (bd->stat & TX_BD_UR)
debug("ETHOC: " "TX: underrun\n");
if (bd->stat & TX_BD_CS)
debug("ETHOC: " "TX: carrier sense lost\n");
return 0;
}
static void ethoc_tx(struct ethoc *priv)
{
u32 entry = priv->dty_tx % priv->num_tx;
struct ethoc_bd bd;
ethoc_read_bd(priv, entry, &bd);
if ((bd.stat & TX_BD_READY) == 0)
(void)ethoc_update_tx_stats(&bd);
}
static int ethoc_send_common(struct ethoc *priv, void *packet, int length)
{
struct ethoc_bd bd;
u32 entry;
u32 pending;
int tmo;
entry = priv->cur_tx % priv->num_tx;
ethoc_read_bd(priv, entry, &bd);
if (unlikely(length < ETHOC_ZLEN))
bd.stat |= TX_BD_PAD;
else
bd.stat &= ~TX_BD_PAD;
if (priv->packet) {
void *p = priv->packet + entry * PKTSIZE_ALIGN;
memcpy(p, packet, length);
packet = p;
} else {
bd.addr = virt_to_phys(packet);
}
flush_dcache_range((ulong)packet, (ulong)packet + length);
bd.stat &= ~(TX_BD_STATS | TX_BD_LEN_MASK);
bd.stat |= TX_BD_LEN(length);
ethoc_write_bd(priv, entry, &bd);
/* start transmit */
bd.stat |= TX_BD_READY;
ethoc_write_bd(priv, entry, &bd);
/* wait for transfer to succeed */
tmo = get_timer(0) + 5 * CONFIG_SYS_HZ;
while (1) {
pending = ethoc_read(priv, INT_SOURCE);
ethoc_ack_irq(priv, pending & ~INT_MASK_RX);
if (pending & INT_MASK_BUSY)
debug("%s(): packet dropped\n", __func__);
if (pending & INT_MASK_TX) {
ethoc_tx(priv);
break;
}
if (get_timer(0) >= tmo) {
debug("%s(): timed out\n", __func__);
return -1;
}
}
debug("%s(): packet sent\n", __func__);
return 0;
}
static int ethoc_free_pkt_common(struct ethoc *priv)
{
struct ethoc_bd bd;
u32 i = priv->cur_rx % priv->num_rx;
u32 entry = priv->num_tx + i;
void *src;
ethoc_read_bd(priv, entry, &bd);
if (priv->packet)
src = priv->packet + entry * PKTSIZE_ALIGN;
else
src = net_rx_packets[i];
/* clear the buffer descriptor so it can be reused */
flush_dcache_range((ulong)src,
(ulong)src + PKTSIZE_ALIGN);
bd.stat &= ~RX_BD_STATS;
bd.stat |= RX_BD_EMPTY;
ethoc_write_bd(priv, entry, &bd);
priv->cur_rx++;
return 0;
}
#ifdef CONFIG_PHYLIB
static int ethoc_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
{
struct ethoc *priv = bus->priv;
int rc;
ethoc_write(priv, MIIADDRESS, MIIADDRESS_ADDR(addr, reg));
ethoc_write(priv, MIICOMMAND, MIICOMMAND_READ);
rc = wait_for_bit_le32(ethoc_reg(priv, MIISTATUS),
MIISTATUS_BUSY, false, CONFIG_SYS_HZ, false);
if (rc == 0) {
u32 data = ethoc_read(priv, MIIRX_DATA);
/* reset MII command register */
ethoc_write(priv, MIICOMMAND, 0);
return data;
}
return rc;
}
static int ethoc_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
u16 val)
{
struct ethoc *priv = bus->priv;
int rc;
ethoc_write(priv, MIIADDRESS, MIIADDRESS_ADDR(addr, reg));
ethoc_write(priv, MIITX_DATA, val);
ethoc_write(priv, MIICOMMAND, MIICOMMAND_WRITE);
rc = wait_for_bit_le32(ethoc_reg(priv, MIISTATUS),
MIISTATUS_BUSY, false, CONFIG_SYS_HZ, false);
if (rc == 0) {
/* reset MII command register */
ethoc_write(priv, MIICOMMAND, 0);
}
return rc;
}
static int ethoc_mdio_init(const char *name, struct ethoc *priv)
{
struct mii_dev *bus = mdio_alloc();
int ret;
if (!bus) {
printf("Failed to allocate MDIO bus\n");
return -ENOMEM;
}
bus->read = ethoc_mdio_read;
bus->write = ethoc_mdio_write;
snprintf(bus->name, sizeof(bus->name), "%s", name);
bus->priv = priv;
ret = mdio_register(bus);
if (ret < 0)
return ret;
priv->bus = miiphy_get_dev_by_name(name);
return 0;
}
static int ethoc_phy_init(struct ethoc *priv, void *dev)
{
struct phy_device *phydev;
int mask = 0xffffffff;
#ifdef CONFIG_PHY_ADDR
mask = 1 << CONFIG_PHY_ADDR;
#endif
phydev = phy_find_by_mask(priv->bus, mask, PHY_INTERFACE_MODE_MII);
if (!phydev)
return -ENODEV;
phy_connect_dev(phydev, dev);
phydev->supported &= PHY_BASIC_FEATURES;
phydev->advertising = phydev->supported;
priv->phydev = phydev;
phy_config(phydev);
return 0;
}
#else
static inline int ethoc_mdio_init(const char *name, struct ethoc *priv)
{
return 0;
}
static inline int ethoc_phy_init(struct ethoc *priv, void *dev)
{
return 0;
}
#endif
#ifdef CONFIG_DM_ETH
static int ethoc_write_hwaddr(struct udevice *dev)
{
struct ethoc_eth_pdata *pdata = dev_get_platdata(dev);
struct ethoc *priv = dev_get_priv(dev);
u8 *mac = pdata->eth_pdata.enetaddr;
return ethoc_write_hwaddr_common(priv, mac);
}
static int ethoc_send(struct udevice *dev, void *packet, int length)
{
return ethoc_send_common(dev_get_priv(dev), packet, length);
}
static int ethoc_free_pkt(struct udevice *dev, uchar *packet, int length)
{
return ethoc_free_pkt_common(dev_get_priv(dev));
}
static int ethoc_recv(struct udevice *dev, int flags, uchar **packetp)
{
struct ethoc *priv = dev_get_priv(dev);
if (flags & ETH_RECV_CHECK_DEVICE)
if (!ethoc_is_new_packet_received(priv))
return -EAGAIN;
return ethoc_rx_common(priv, packetp);
}
static int ethoc_start(struct udevice *dev)
{
return ethoc_init_common(dev_get_priv(dev));
}
static void ethoc_stop(struct udevice *dev)
{
ethoc_stop_common(dev_get_priv(dev));
}
static int ethoc_ofdata_to_platdata(struct udevice *dev)
{
struct ethoc_eth_pdata *pdata = dev_get_platdata(dev);
fdt_addr_t addr;
pdata->eth_pdata.iobase = devfdt_get_addr(dev);
addr = devfdt_get_addr_index(dev, 1);
if (addr != FDT_ADDR_T_NONE)
pdata->packet_base = addr;
return 0;
}
static int ethoc_probe(struct udevice *dev)
{
struct ethoc_eth_pdata *pdata = dev_get_platdata(dev);
struct ethoc *priv = dev_get_priv(dev);
priv->iobase = ioremap(pdata->eth_pdata.iobase, ETHOC_IOSIZE);
if (pdata->packet_base) {
priv->packet_phys = pdata->packet_base;
priv->packet = ioremap(pdata->packet_base,
(1 + PKTBUFSRX) * PKTSIZE_ALIGN);
}
ethoc_mdio_init(dev->name, priv);
ethoc_phy_init(priv, dev);
return 0;
}
static int ethoc_remove(struct udevice *dev)
{
struct ethoc *priv = dev_get_priv(dev);
#ifdef CONFIG_PHYLIB
free(priv->phydev);
mdio_unregister(priv->bus);
mdio_free(priv->bus);
#endif
iounmap(priv->iobase);
return 0;
}
static const struct eth_ops ethoc_ops = {
.start = ethoc_start,
.stop = ethoc_stop,
.send = ethoc_send,
.recv = ethoc_recv,
.free_pkt = ethoc_free_pkt,
.write_hwaddr = ethoc_write_hwaddr,
};
static const struct udevice_id ethoc_ids[] = {
{ .compatible = "opencores,ethoc" },
{ }
};
U_BOOT_DRIVER(ethoc) = {
.name = "ethoc",
.id = UCLASS_ETH,
.of_match = ethoc_ids,
.ofdata_to_platdata = ethoc_ofdata_to_platdata,
.probe = ethoc_probe,
.remove = ethoc_remove,
.ops = &ethoc_ops,
.priv_auto_alloc_size = sizeof(struct ethoc),
.platdata_auto_alloc_size = sizeof(struct ethoc_eth_pdata),
};
#else
static int ethoc_init(struct eth_device *dev, bd_t *bd)
{
struct ethoc *priv = (struct ethoc *)dev->priv;
return ethoc_init_common(priv);
}
static int ethoc_write_hwaddr(struct eth_device *dev)
{
struct ethoc *priv = (struct ethoc *)dev->priv;
u8 *mac = dev->enetaddr;
return ethoc_write_hwaddr_common(priv, mac);
}
static int ethoc_send(struct eth_device *dev, void *packet, int length)
{
return ethoc_send_common(dev->priv, packet, length);
}
static void ethoc_halt(struct eth_device *dev)
{
ethoc_disable_rx_and_tx(dev->priv);
}
static int ethoc_recv(struct eth_device *dev)
{
struct ethoc *priv = (struct ethoc *)dev->priv;
int count;
if (!ethoc_is_new_packet_received(priv))
return 0;
for (count = 0; count < PKTBUFSRX; ++count) {
uchar *packetp;
int size = ethoc_rx_common(priv, &packetp);
if (size < 0)
break;
if (size > 0)
net_process_received_packet(packetp, size);
ethoc_free_pkt_common(priv);
}
return 0;
}
int ethoc_initialize(u8 dev_num, int base_addr)
{
struct ethoc *priv;
struct eth_device *dev;
priv = malloc(sizeof(*priv));
if (!priv)
return 0;
dev = malloc(sizeof(*dev));
if (!dev) {
free(priv);
return 0;
}
memset(dev, 0, sizeof(*dev));
dev->priv = priv;
dev->iobase = base_addr;
dev->init = ethoc_init;
dev->halt = ethoc_halt;
dev->send = ethoc_send;
dev->recv = ethoc_recv;
dev->write_hwaddr = ethoc_write_hwaddr;
sprintf(dev->name, "%s-%hu", "ETHOC", dev_num);
priv->iobase = ioremap(dev->iobase, ETHOC_IOSIZE);
eth_register(dev);
ethoc_mdio_init(dev->name, priv);
ethoc_phy_init(priv, dev);
return 1;
}
#endif
Reference in a new issue View git blame Copy permalink