diff options
Diffstat (limited to 'drivers/net/ftmac100.c')
| -rw-r--r-- | drivers/net/ftmac100.c | 270 |
1 files changed, 223 insertions, 47 deletions
diff --git a/drivers/net/ftmac100.c b/drivers/net/ftmac100.c index 1fc7da9a3e..b79c467e69 100644 --- a/drivers/net/ftmac100.c +++ b/drivers/net/ftmac100.c @@ -11,24 +11,29 @@ #include <common.h> #include <malloc.h> #include <net.h> -#include <asm/io.h> +#include <linux/io.h> #include "ftmac100.h" - +#ifdef CONFIG_DM_ETH +#include <dm.h> +DECLARE_GLOBAL_DATA_PTR; +#endif #define ETH_ZLEN 60 struct ftmac100_data { struct ftmac100_txdes txdes[1]; struct ftmac100_rxdes rxdes[PKTBUFSRX]; int rx_index; + const char *name; + phys_addr_t iobase; }; /* * Reset MAC */ -static void ftmac100_reset (struct eth_device *dev) +static void ftmac100_reset(struct ftmac100_data *priv) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase; debug ("%s()\n", __func__); @@ -41,9 +46,10 @@ static void ftmac100_reset (struct eth_device *dev) /* * Set MAC address */ -static void ftmac100_set_mac (struct eth_device *dev, const unsigned char *mac) +static void ftmac100_set_mac(struct ftmac100_data *priv , + const unsigned char *mac) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; + struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase; unsigned int maddr = mac[0] << 8 | mac[1]; unsigned int laddr = mac[2] << 24 | mac[3] << 16 | mac[4] << 8 | mac[5]; @@ -53,29 +59,22 @@ static void ftmac100_set_mac (struct eth_device *dev, const unsigned char *mac) writel (laddr, &ftmac100->mac_ladr); } -static void ftmac100_set_mac_from_env (struct eth_device *dev) -{ - eth_getenv_enetaddr ("ethaddr", dev->enetaddr); - - ftmac100_set_mac (dev, dev->enetaddr); -} - /* - * disable transmitter, receiver + * Disable MAC */ -static void ftmac100_halt (struct eth_device *dev) +static void _ftmac100_halt(struct ftmac100_data *priv) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; - + struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase; debug ("%s()\n", __func__); - writel (0, &ftmac100->maccr); } -static int ftmac100_init (struct eth_device *dev, bd_t *bd) +/* + * Initialize MAC + */ +static int _ftmac100_init(struct ftmac100_data *priv, unsigned char enetaddr[6]) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; - struct ftmac100_data *priv = dev->priv; + struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase; struct ftmac100_txdes *txdes = priv->txdes; struct ftmac100_rxdes *rxdes = priv->rxdes; unsigned int maccr; @@ -83,11 +82,11 @@ static int ftmac100_init (struct eth_device *dev, bd_t *bd) debug ("%s()\n", __func__); - ftmac100_reset (dev); + ftmac100_reset(priv); /* set the ethernet address */ + ftmac100_set_mac(priv, enetaddr); - ftmac100_set_mac_from_env (dev); /* disable all interrupts */ @@ -136,25 +135,37 @@ static int ftmac100_init (struct eth_device *dev, bd_t *bd) } /* - * Get a data block via Ethernet + * Free receiving buffer */ -static int ftmac100_recv (struct eth_device *dev) +static int _ftmac100_free_pkt(struct ftmac100_data *priv) +{ + struct ftmac100_rxdes *curr_des; + curr_des = &priv->rxdes[priv->rx_index]; + /* release buffer to DMA */ + curr_des->rxdes0 |= FTMAC100_RXDES0_RXDMA_OWN; + priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX; + return 0; +} + +/* + * Receive a data block via Ethernet + */ +static int __ftmac100_recv(struct ftmac100_data *priv) { - struct ftmac100_data *priv = dev->priv; struct ftmac100_rxdes *curr_des; unsigned short rxlen; curr_des = &priv->rxdes[priv->rx_index]; if (curr_des->rxdes0 & FTMAC100_RXDES0_RXDMA_OWN) - return -1; + return 0; if (curr_des->rxdes0 & (FTMAC100_RXDES0_RX_ERR | FTMAC100_RXDES0_CRC_ERR | FTMAC100_RXDES0_FTL | FTMAC100_RXDES0_RUNT | FTMAC100_RXDES0_RX_ODD_NB)) { - return -1; + return 0; } rxlen = FTMAC100_RXDES0_RFL (curr_des->rxdes0); @@ -162,26 +173,15 @@ static int ftmac100_recv (struct eth_device *dev) debug ("%s(): RX buffer %d, %x received\n", __func__, priv->rx_index, rxlen); - /* pass the packet up to the protocol layers. */ - - net_process_received_packet((void *)curr_des->rxdes2, rxlen); - - /* release buffer to DMA */ - - curr_des->rxdes0 |= FTMAC100_RXDES0_RXDMA_OWN; - - priv->rx_index = (priv->rx_index + 1) % PKTBUFSRX; - - return 0; + return rxlen; } /* * Send a data block via Ethernet */ -static int ftmac100_send(struct eth_device *dev, void *packet, int length) +static int _ftmac100_send(struct ftmac100_data *priv, void *packet, int length) { - struct ftmac100 *ftmac100 = (struct ftmac100 *)dev->iobase; - struct ftmac100_data *priv = dev->priv; + struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase; struct ftmac100_txdes *curr_des = priv->txdes; ulong start; @@ -224,25 +224,69 @@ static int ftmac100_send(struct eth_device *dev, void *packet, int length) return 0; } +#ifndef CONFIG_DM_ETH +/* + * disable transmitter, receiver + */ +static void ftmac100_halt(struct eth_device *dev) +{ + struct ftmac100_data *priv = dev->priv; + return _ftmac100_halt(priv); +} + +static int ftmac100_init(struct eth_device *dev, bd_t *bd) +{ + struct ftmac100_data *priv = dev->priv; + return _ftmac100_init(priv , dev->enetaddr); +} + +static int _ftmac100_recv(struct ftmac100_data *priv) +{ + struct ftmac100_rxdes *curr_des; + unsigned short len; + curr_des = &priv->rxdes[priv->rx_index]; + len = __ftmac100_recv(priv); + if (len) { + /* pass the packet up to the protocol layers. */ + net_process_received_packet((void *)curr_des->rxdes2, len); + _ftmac100_free_pkt(priv); + } + return len ? 1 : 0; +} + +/* + * Get a data block via Ethernet + */ +static int ftmac100_recv(struct eth_device *dev) +{ + struct ftmac100_data *priv = dev->priv; + return _ftmac100_recv(priv); +} + +/* + * Send a data block via Ethernet + */ +static int ftmac100_send(struct eth_device *dev, void *packet, int length) +{ + struct ftmac100_data *priv = dev->priv; + return _ftmac100_send(priv , packet , length); +} + int ftmac100_initialize (bd_t *bd) { struct eth_device *dev; struct ftmac100_data *priv; - dev = malloc (sizeof *dev); if (!dev) { printf ("%s(): failed to allocate dev\n", __func__); goto out; } - /* Transmit and receive descriptors should align to 16 bytes */ - priv = memalign (16, sizeof (struct ftmac100_data)); if (!priv) { printf ("%s(): failed to allocate priv\n", __func__); goto free_dev; } - memset (dev, 0, sizeof (*dev)); memset (priv, 0, sizeof (*priv)); @@ -253,7 +297,7 @@ int ftmac100_initialize (bd_t *bd) dev->send = ftmac100_send; dev->recv = ftmac100_recv; dev->priv = priv; - + priv->iobase = dev->iobase; eth_register (dev); return 1; @@ -263,3 +307,135 @@ free_dev: out: return 0; } +#endif + +#ifdef CONFIG_DM_ETH +static int ftmac100_start(struct udevice *dev) +{ + struct eth_pdata *plat = dev_get_platdata(dev); + struct ftmac100_data *priv = dev_get_priv(dev); + + return _ftmac100_init(priv, plat->enetaddr); +} + +static void ftmac100_stop(struct udevice *dev) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + _ftmac100_halt(priv); +} + +static int ftmac100_send(struct udevice *dev, void *packet, int length) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + int ret; + ret = _ftmac100_send(priv , packet , length); + return ret ? 0 : -ETIMEDOUT; +} + +static int ftmac100_recv(struct udevice *dev, int flags, uchar **packetp) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + struct ftmac100_rxdes *curr_des; + curr_des = &priv->rxdes[priv->rx_index]; + int len; + len = __ftmac100_recv(priv); + if (len) + *packetp = (void *)curr_des->rxdes2; + + return len ? len : -EAGAIN; +} + +static int ftmac100_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + _ftmac100_free_pkt(priv); + return 0; +} + +int ftmac100_read_rom_hwaddr(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + eth_getenv_enetaddr("ethaddr", pdata->enetaddr); + return 0; +} + +static const char *dtbmacaddr(u32 ifno) +{ + int node, len; + char enet[16]; + const char *mac; + const char *path; + if (gd->fdt_blob == NULL) { + printf("%s: don't have a valid gd->fdt_blob!\n", __func__); + return NULL; + } + node = fdt_path_offset(gd->fdt_blob, "/aliases"); + if (node < 0) + return NULL; + + sprintf(enet, "ethernet%d", ifno); + path = fdt_getprop(gd->fdt_blob, node, enet, NULL); + if (!path) { + printf("no alias for %s\n", enet); + return NULL; + } + node = fdt_path_offset(gd->fdt_blob, path); + mac = fdt_getprop(gd->fdt_blob, node, "mac-address", &len); + if (mac && is_valid_ethaddr((u8 *)mac)) + return mac; + + return NULL; +} + +static int ftmac100_ofdata_to_platdata(struct udevice *dev) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + struct eth_pdata *pdata = dev_get_platdata(dev); + const char *mac; + pdata->iobase = dev_get_addr(dev); + priv->iobase = pdata->iobase; + mac = dtbmacaddr(0); + if (mac) + memcpy(pdata->enetaddr , mac , 6); + + return 0; +} + +static int ftmac100_probe(struct udevice *dev) +{ + struct ftmac100_data *priv = dev_get_priv(dev); + priv->name = dev->name; + return 0; +} + +static int ftmac100_bind(struct udevice *dev) +{ + return device_set_name(dev, dev->name); +} + +static const struct eth_ops ftmac100_ops = { + .start = ftmac100_start, + .send = ftmac100_send, + .recv = ftmac100_recv, + .stop = ftmac100_stop, + .free_pkt = ftmac100_free_pkt, +}; + +static const struct udevice_id ftmac100_ids[] = { + { .compatible = "andestech,atmac100" }, + { } +}; + +U_BOOT_DRIVER(ftmac100) = { + .name = "nds32_mac", + .id = UCLASS_ETH, + .of_match = ftmac100_ids, + .bind = ftmac100_bind, + .ofdata_to_platdata = ftmac100_ofdata_to_platdata, + .probe = ftmac100_probe, + .ops = &ftmac100_ops, + .priv_auto_alloc_size = sizeof(struct ftmac100_data), + .platdata_auto_alloc_size = sizeof(struct eth_pdata), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +}; +#endif |