summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/amd/hplance.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/ethernet/amd/hplance.c')
-rw-r--r--drivers/net/ethernet/amd/hplance.c110
1 files changed, 58 insertions, 52 deletions
diff --git a/drivers/net/ethernet/amd/hplance.c b/drivers/net/ethernet/amd/hplance.c
index 0c61fd50d882..df42294530cb 100644
--- a/drivers/net/ethernet/amd/hplance.c
+++ b/drivers/net/ethernet/amd/hplance.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* hplance.c : the Linux/hp300/lance ethernet driver
*
* Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
@@ -14,6 +15,7 @@
#include <linux/delay.h>
#include <linux/init.h>
#include <linux/errno.h>
+#include <linux/pgtable.h>
/* Used for the temporal inet entries and routing */
#include <linux/socket.h>
#include <linux/route.h>
@@ -23,13 +25,12 @@
#include <linux/skbuff.h>
#include <asm/io.h>
-#include <asm/pgtable.h>
#include "hplance.h"
-/* We have 16834 bytes of RAM for the init block and buffers. This places
+/* We have 16392 bytes of RAM for the init block and buffers. This places
* an upper limit on the number of buffers we can use. NetBSD uses 8 Rx
- * buffers and 2 Tx buffers.
+ * buffers and 2 Tx buffers, it takes (8 + 2) * 1544 bytes.
*/
#define LANCE_LOG_TX_BUFFERS 1
#define LANCE_LOG_RX_BUFFERS 3
@@ -72,7 +73,6 @@ static const struct net_device_ops hplance_netdev_ops = {
.ndo_stop = hplance_close,
.ndo_start_xmit = lance_start_xmit,
.ndo_set_rx_mode = lance_set_multicast,
- .ndo_change_mtu = eth_change_mtu,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -127,41 +127,43 @@ static void hplance_remove_one(struct dio_dev *d)
/* Initialise a single lance board at the given DIO device */
static void hplance_init(struct net_device *dev, struct dio_dev *d)
{
- unsigned long va = (d->resource.start + DIO_VIRADDRBASE);
- struct hplance_private *lp;
- int i;
-
- /* reset the board */
- out_8(va+DIO_IDOFF, 0xff);
- udelay(100); /* ariba! ariba! udelay! udelay! */
-
- /* Fill the dev fields */
- dev->base_addr = va;
- dev->netdev_ops = &hplance_netdev_ops;
- dev->dma = 0;
-
- for (i=0; i<6; i++) {
- /* The NVRAM holds our ethernet address, one nibble per byte,
- * at bytes NVRAMOFF+1,3,5,7,9...
- */
- dev->dev_addr[i] = ((in_8(va + HPLANCE_NVRAMOFF + i*4 + 1) & 0xF) << 4)
- | (in_8(va + HPLANCE_NVRAMOFF + i*4 + 3) & 0xF);
- }
-
- lp = netdev_priv(dev);
- lp->lance.name = (char*)d->name; /* discards const, shut up gcc */
- lp->lance.base = va;
- lp->lance.init_block = (struct lance_init_block *)(va + HPLANCE_MEMOFF); /* CPU addr */
- lp->lance.lance_init_block = NULL; /* LANCE addr of same RAM */
- lp->lance.busmaster_regval = LE_C3_BSWP; /* we're bigendian */
- lp->lance.irq = d->ipl;
- lp->lance.writerap = hplance_writerap;
- lp->lance.writerdp = hplance_writerdp;
- lp->lance.readrdp = hplance_readrdp;
- lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
- lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
- lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;
- lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;
+ unsigned long va = (d->resource.start + DIO_VIRADDRBASE);
+ struct hplance_private *lp;
+ u8 addr[ETH_ALEN];
+ int i;
+
+ /* reset the board */
+ out_8(va + DIO_IDOFF, 0xff);
+ udelay(100); /* ariba! ariba! udelay! udelay! */
+
+ /* Fill the dev fields */
+ dev->base_addr = va;
+ dev->netdev_ops = &hplance_netdev_ops;
+ dev->dma = 0;
+
+ for (i = 0; i < 6; i++) {
+ /* The NVRAM holds our ethernet address, one nibble per byte,
+ * at bytes NVRAMOFF+1,3,5,7,9...
+ */
+ addr[i] = ((in_8(va + HPLANCE_NVRAMOFF + i*4 + 1) & 0xF) << 4)
+ | (in_8(va + HPLANCE_NVRAMOFF + i*4 + 3) & 0xF);
+ }
+ eth_hw_addr_set(dev, addr);
+
+ lp = netdev_priv(dev);
+ lp->lance.name = d->name;
+ lp->lance.base = va;
+ lp->lance.init_block = (struct lance_init_block *)(va + HPLANCE_MEMOFF); /* CPU addr */
+ lp->lance.lance_init_block = NULL; /* LANCE addr of same RAM */
+ lp->lance.busmaster_regval = LE_C3_BSWP; /* we're bigendian */
+ lp->lance.irq = d->ipl;
+ lp->lance.writerap = hplance_writerap;
+ lp->lance.writerdp = hplance_writerdp;
+ lp->lance.readrdp = hplance_readrdp;
+ lp->lance.lance_log_rx_bufs = LANCE_LOG_RX_BUFFERS;
+ lp->lance.lance_log_tx_bufs = LANCE_LOG_TX_BUFFERS;
+ lp->lance.rx_ring_mod_mask = RX_RING_MOD_MASK;
+ lp->lance.tx_ring_mod_mask = TX_RING_MOD_MASK;
}
/* This is disgusting. We have to check the DIO status register for ack every
@@ -170,6 +172,7 @@ static void hplance_init(struct net_device *dev, struct dio_dev *d)
static void hplance_writerap(void *priv, unsigned short value)
{
struct lance_private *lp = (struct lance_private *)priv;
+
do {
out_be16(lp->base + HPLANCE_REGOFF + LANCE_RAP, value);
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
@@ -178,6 +181,7 @@ static void hplance_writerap(void *priv, unsigned short value)
static void hplance_writerdp(void *priv, unsigned short value)
{
struct lance_private *lp = (struct lance_private *)priv;
+
do {
out_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP, value);
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
@@ -187,6 +191,7 @@ static unsigned short hplance_readrdp(void *priv)
{
struct lance_private *lp = (struct lance_private *)priv;
__u16 value;
+
do {
value = in_be16(lp->base + HPLANCE_REGOFF + LANCE_RDP);
} while ((in_8(lp->base + HPLANCE_STATUS) & LE_ACK) == 0);
@@ -195,25 +200,25 @@ static unsigned short hplance_readrdp(void *priv)
static int hplance_open(struct net_device *dev)
{
- int status;
- struct lance_private *lp = netdev_priv(dev);
+ int status;
+ struct lance_private *lp = netdev_priv(dev);
- status = lance_open(dev); /* call generic lance open code */
- if (status)
- return status;
- /* enable interrupts at board level. */
- out_8(lp->base + HPLANCE_STATUS, LE_IE);
+ status = lance_open(dev); /* call generic lance open code */
+ if (status)
+ return status;
+ /* enable interrupts at board level. */
+ out_8(lp->base + HPLANCE_STATUS, LE_IE);
- return 0;
+ return 0;
}
static int hplance_close(struct net_device *dev)
{
- struct lance_private *lp = netdev_priv(dev);
+ struct lance_private *lp = netdev_priv(dev);
- out_8(lp->base + HPLANCE_STATUS, 0); /* disable interrupts at boardlevel */
- lance_close(dev);
- return 0;
+ out_8(lp->base + HPLANCE_STATUS, 0); /* disable interrupts at boardlevel */
+ lance_close(dev);
+ return 0;
}
static int __init hplance_init_module(void)
@@ -223,10 +228,11 @@ static int __init hplance_init_module(void)
static void __exit hplance_cleanup_module(void)
{
- dio_unregister_driver(&hplance_driver);
+ dio_unregister_driver(&hplance_driver);
}
module_init(hplance_init_module);
module_exit(hplance_cleanup_module);
+MODULE_DESCRIPTION("HP300 on-board LANCE Ethernet driver");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 05:05:46 +0000