+// SPDX-License-Identifier: GPL-2.0+
/*
* Faraday FTMAC100 Ethernet
*
* (C) Copyright 2009 Faraday Technology
* Po-Yu Chuang <ratbert@faraday-tech.com>
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <common.h>
+#include <cpu_func.h>
+#include <env.h>
#include <malloc.h>
#include <net.h>
-#include <asm/io.h>
+#include <linux/delay.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 {
- volatile struct ftmac100_txdes txdes[1];
- volatile struct ftmac100_rxdes rxdes[PKTBUFSRX];
+ 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__);
writel (FTMAC100_MACCR_SW_RST, &ftmac100->maccr);
while (readl (&ftmac100->maccr) & FTMAC100_MACCR_SW_RST)
- ;
+ mdelay(1);
+ /*
+ * When soft reset complete, write mac address immediately maybe fail somehow
+ * Wait for a while can avoid this problem
+ */
+ mdelay(1);
}
/*
* 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];
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;
- volatile struct ftmac100_txdes *txdes = priv->txdes;
- volatile struct ftmac100_rxdes *rxdes = priv->rxdes;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
+ struct ftmac100_txdes *txdes = priv->txdes;
+ struct ftmac100_rxdes *rxdes = priv->rxdes;
unsigned int maccr;
int i;
-
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 */
for (i = 0; i < PKTBUFSRX; i++) {
/* RXBUF_BADR */
- rxdes[i].rxdes2 = (unsigned int)NetRxPackets[i];
+ rxdes[i].rxdes2 = (unsigned int)(unsigned long)net_rx_packets[i];
rxdes[i].rxdes1 |= FTMAC100_RXDES1_RXBUF_SIZE (PKTSIZE_ALIGN);
rxdes[i].rxdes0 = FTMAC100_RXDES0_RXDMA_OWN;
}
/* transmit ring */
- writel ((unsigned int)txdes, &ftmac100->txr_badr);
+ writel ((unsigned long)txdes, &ftmac100->txr_badr);
/* receive ring */
- writel ((unsigned int)rxdes, &ftmac100->rxr_badr);
+ writel ((unsigned long)rxdes, &ftmac100->rxr_badr);
/* poll receive descriptor automatically */
}
/*
- * 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_data *priv = dev->priv;
- volatile struct ftmac100_rxdes *curr_des;
+ 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_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);
-
+ invalidate_dcache_range(curr_des->rxdes2,curr_des->rxdes2+rxlen);
debug ("%s(): RX buffer %d, %x received\n",
__func__, priv->rx_index, rxlen);
- /* pass the packet up to the protocol layers. */
-
- NetReceive ((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, volatile 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;
- volatile struct ftmac100_txdes *curr_des = priv->txdes;
- int tmo;
+ struct ftmac100 *ftmac100 = (struct ftmac100 *)priv->iobase;
+ struct ftmac100_txdes *curr_des = priv->txdes;
+ ulong start;
if (curr_des->txdes0 & FTMAC100_TXDES0_TXDMA_OWN) {
debug ("%s(): no TX descriptor available\n", __func__);
return -1;
}
- debug ("%s(%x, %x)\n", __func__, (int)packet, length);
+ debug ("%s(%lx, %x)\n", __func__, (unsigned long)packet, length);
length = (length < ETH_ZLEN) ? ETH_ZLEN : length;
/* initiate a transmit sequence */
- curr_des->txdes2 = (unsigned int)packet; /* TXBUF_BADR */
+ flush_dcache_range((unsigned long)packet,(unsigned long)packet+length);
+ curr_des->txdes2 = (unsigned int)(unsigned long)packet; /* TXBUF_BADR */
curr_des->txdes1 &= FTMAC100_TXDES1_EDOTR;
curr_des->txdes1 |= FTMAC100_TXDES1_FTS |
/* wait for transfer to succeed */
- tmo = get_timer (0) + 5 * CONFIG_SYS_HZ;
+ start = get_timer(0);
while (curr_des->txdes0 & FTMAC100_TXDES0_TXDMA_OWN) {
- if (get_timer (0) >= tmo) {
+ if (get_timer(start) >= 5) {
debug ("%s(): timed out\n", __func__);
return -1;
}
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));
- sprintf (dev->name, "FTMAC100");
+ strcpy(dev->name, "FTMAC100");
dev->iobase = CONFIG_FTMAC100_BASE;
dev->init = ftmac100_init;
dev->halt = ftmac100_halt;
dev->send = ftmac100_send;
dev->recv = ftmac100_recv;
dev->priv = priv;
-
+ priv->iobase = dev->iobase;
eth_register (dev);
return 1;
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 = (uchar *)(unsigned long)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_env_get_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 = devfdt_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
projects / oweals / u-boot.git / blobdiff