A Davicom DM9000 ISA NIC fast Ethernet driver for Linux.
Copyright (C) 1997 Sten Wang
- 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.
+ * SPDX-License-Identifier: GPL-2.0+
(C)Copyright 1997-1998 DAVICOM Semiconductor,Inc. All Rights Reserved.
R17 = (R17 & 0xfff0) | NF
v1.00 modify by simon 2001.9.5
- change for kernel 2.4.x
+ change for kernel 2.4.x
v1.1 11/09/2001 fix force mode bug
#define DM9000_DMP_PACKET(func,packet,length) \
do { \
int i; \
- printf(func ": length: %d\n", length); \
+ printf("%s: length: %d\n", func, length); \
for (i = 0; i < length; i++) { \
if (i % 8 == 0) \
printf("\n%s: %02x: ", func, i); \
void (*outblk)(volatile void *data_ptr, int count);
void (*inblk)(void *data_ptr, int count);
void (*rx_status)(u16 *RxStatus, u16 *RxLen);
+ struct eth_device netdev;
} board_info_t;
static board_info_t dm9000_info;
+
/* function declaration ------------------------------------- */
-int eth_init(bd_t * bd);
-int eth_send(volatile void *, int);
-int eth_rx(void);
-void eth_halt(void);
static int dm9000_probe(void);
-static u16 phy_read(int);
-static void phy_write(int, u16);
+static u16 dm9000_phy_read(int);
+static void dm9000_phy_write(int, u16);
static u8 DM9000_ior(int);
static void DM9000_iow(int reg, u8 value);
/* DM9000 network board routine ---------------------------- */
-
-#define DM9000_outb(d,r) ( *(volatile u8 *)r = d )
-#define DM9000_outw(d,r) ( *(volatile u16 *)r = d )
-#define DM9000_outl(d,r) ( *(volatile u32 *)r = d )
-#define DM9000_inb(r) (*(volatile u8 *)r)
-#define DM9000_inw(r) (*(volatile u16 *)r)
-#define DM9000_inl(r) (*(volatile u32 *)r)
+#ifndef CONFIG_DM9000_BYTE_SWAPPED
+#define DM9000_outb(d,r) writeb(d, (volatile u8 *)(r))
+#define DM9000_outw(d,r) writew(d, (volatile u16 *)(r))
+#define DM9000_outl(d,r) writel(d, (volatile u32 *)(r))
+#define DM9000_inb(r) readb((volatile u8 *)(r))
+#define DM9000_inw(r) readw((volatile u16 *)(r))
+#define DM9000_inl(r) readl((volatile u32 *)(r))
+#else
+#define DM9000_outb(d, r) __raw_writeb(d, r)
+#define DM9000_outw(d, r) __raw_writew(d, r)
+#define DM9000_outl(d, r) __raw_writel(d, r)
+#define DM9000_inb(r) __raw_readb(r)
+#define DM9000_inw(r) __raw_readw(r)
+#define DM9000_inl(r) __raw_readl(r)
+#endif
#ifdef CONFIG_DM9000_DEBUG
static void
printf("ERROR: resetting DM9000 -> not responding\n");
}
-/* Initilize dm9000 board
+/* Initialize dm9000 board
*/
-int
-eth_init(bd_t * bd)
+static int dm9000_init(struct eth_device *dev, bd_t *bd)
{
int i, oft, lnk;
u8 io_mode;
struct board_info *db = &dm9000_info;
- uchar enetaddr[6];
- DM9000_DBG("eth_init()\n");
+ DM9000_DBG("%s\n", __func__);
/* RESET device */
dm9000_reset();
/* Clear interrupt status */
DM9000_iow(DM9000_ISR, ISR_ROOS | ISR_ROS | ISR_PTS | ISR_PRS);
- /* Set Node address */
- if (!eth_getenv_enetaddr("ethaddr", enetaddr)) {
-#if !defined(CONFIG_DM9000_NO_SROM)
- for (i = 0; i < 3; i++)
- dm9000_read_srom_word(i, enetaddr + 2 * i);
- eth_setenv_enetaddr("ethaddr", enetaddr);
+ printf("MAC: %pM\n", dev->enetaddr);
+ if (!is_valid_ether_addr(dev->enetaddr)) {
+#ifdef CONFIG_RANDOM_MACADDR
+ printf("Bad MAC address (uninitialized EEPROM?), randomizing\n");
+ eth_random_enetaddr(dev->enetaddr);
+ printf("MAC: %pM\n", dev->enetaddr);
+#else
+ printf("WARNING: Bad MAC address (uninitialized EEPROM?)\n");
#endif
}
- printf("MAC: %pM\n", enetaddr);
-
/* fill device MAC address registers */
for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
- DM9000_iow(oft, enetaddr[i]);
+ DM9000_iow(oft, dev->enetaddr[i]);
for (i = 0, oft = 0x16; i < 8; i++, oft++)
DM9000_iow(oft, 0xff);
DM9000_iow(DM9000_IMR, IMR_PAR);
i = 0;
- while (!(phy_read(1) & 0x20)) { /* autonegation complete bit */
+ while (!(dm9000_phy_read(1) & 0x20)) { /* autonegation complete bit */
udelay(1000);
i++;
if (i == 10000) {
}
/* see what we've got */
- lnk = phy_read(17) >> 12;
+ lnk = dm9000_phy_read(17) >> 12;
printf("operating at ");
switch (lnk) {
case 1:
Hardware start transmission.
Send a packet to media from the upper layer.
*/
-int
-eth_send(volatile void *packet, int length)
+static int dm9000_send(struct eth_device *netdev, void *packet, int length)
{
int tmo;
struct board_info *db = &dm9000_info;
- DM9000_DMP_PACKET("eth_send", packet, length);
+ DM9000_DMP_PACKET(__func__ , packet, length);
DM9000_iow(DM9000_ISR, IMR_PTM); /* Clear Tx bit in ISR */
Stop the interface.
The interface is stopped when it is brought.
*/
-void
-eth_halt(void)
+static void dm9000_halt(struct eth_device *netdev)
{
- DM9000_DBG("eth_halt\n");
+ DM9000_DBG("%s\n", __func__);
/* RESET devie */
- phy_write(0, 0x8000); /* PHY RESET */
+ dm9000_phy_write(0, 0x8000); /* PHY RESET */
DM9000_iow(DM9000_GPR, 0x01); /* Power-Down PHY */
DM9000_iow(DM9000_IMR, 0x80); /* Disable all interrupt */
DM9000_iow(DM9000_RCR, 0x00); /* Disable RX */
/*
Received a packet and pass to upper layer
*/
-int
-eth_rx(void)
+static int dm9000_rx(struct eth_device *netdev)
{
u8 rxbyte, *rdptr = (u8 *) NetRxPackets[0];
u16 RxStatus, RxLen = 0;
dm9000_reset();
}
} else {
- DM9000_DMP_PACKET("eth_rx", rdptr, RxLen);
+ DM9000_DMP_PACKET(__func__ , rdptr, RxLen);
DM9000_DBG("passing packet to upper layer\n");
NetReceive(NetRxPackets[0], RxLen);
}
#endif
+static void dm9000_get_enetaddr(struct eth_device *dev)
+{
+#if !defined(CONFIG_DM9000_NO_SROM)
+ int i;
+ for (i = 0; i < 3; i++)
+ dm9000_read_srom_word(i, dev->enetaddr + (2 * i));
+#endif
+}
+
/*
Read a byte from I/O port
*/
Read a word from phyxcer
*/
static u16
-phy_read(int reg)
+dm9000_phy_read(int reg)
{
u16 val;
val = (DM9000_ior(DM9000_EPDRH) << 8) | DM9000_ior(DM9000_EPDRL);
/* The read data keeps on REG_0D & REG_0E */
- DM9000_DBG("phy_read(0x%x): 0x%x\n", reg, val);
+ DM9000_DBG("dm9000_phy_read(0x%x): 0x%x\n", reg, val);
return val;
}
Write a word to phyxcer
*/
static void
-phy_write(int reg, u16 value)
+dm9000_phy_write(int reg, u16 value)
{
/* Fill the phyxcer register into REG_0C */
DM9000_iow(DM9000_EPCR, 0xa); /* Issue phyxcer write command */
udelay(500); /* Wait write complete */
DM9000_iow(DM9000_EPCR, 0x0); /* Clear phyxcer write command */
- DM9000_DBG("phy_write(reg:0x%x, value:0x%x)\n", reg, value);
+ DM9000_DBG("dm9000_phy_write(reg:0x%x, value:0x%x)\n", reg, value);
+}
+
+int dm9000_initialize(bd_t *bis)
+{
+ struct eth_device *dev = &(dm9000_info.netdev);
+
+ /* Load MAC address from EEPROM */
+ dm9000_get_enetaddr(dev);
+
+ dev->init = dm9000_init;
+ dev->halt = dm9000_halt;
+ dev->send = dm9000_send;
+ dev->recv = dm9000_rx;
+ sprintf(dev->name, "dm9000");
+
+ eth_register(dev);
+
+ return 0;
}
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