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sunbmac: Convert to pure OF driver.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-08-26 23:40:25 -07:00
parent 9e6b6e7d8e
commit 8ef2175c86
2 changed files with 70 additions and 88 deletions
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144
drivers/net/sunbmac.c
View File

@ -1,7 +1,6 @@
/* $Id: sunbmac.c,v 1.30 2002/01/15 06:48:55 davem Exp $ /* sunbmac.c: Driver for Sparc BigMAC 100baseT ethernet adapters.
* sunbmac.c: Driver for Sparc BigMAC 100baseT ethernet adapters.
* *
* Copyright (C) 1997, 1998, 1999, 2003 David S. Miller (davem@redhat.com) * Copyright (C) 1997, 1998, 1999, 2003, 2008 David S. Miller (davem@davemloft.net)
*/ */
#include <linux/module.h> #include <linux/module.h>
@ -24,6 +23,8 @@
#include <linux/skbuff.h> #include <linux/skbuff.h>
#include <linux/bitops.h> #include <linux/bitops.h>
#include <linux/dma-mapping.h> #include <linux/dma-mapping.h>
#include <linux/of.h>
#include <linux/of_device.h>
#include <asm/auxio.h> #include <asm/auxio.h>
#include <asm/byteorder.h> #include <asm/byteorder.h>
@ -33,15 +34,14 @@
#include <asm/openprom.h> #include <asm/openprom.h>
#include <asm/oplib.h> #include <asm/oplib.h>
#include <asm/pgtable.h> #include <asm/pgtable.h>
#include <asm/sbus.h>
#include <asm/system.h> #include <asm/system.h>
#include "sunbmac.h" #include "sunbmac.h"
#define DRV_NAME "sunbmac" #define DRV_NAME "sunbmac"
#define DRV_VERSION "2.0" #define DRV_VERSION "2.1"
#define DRV_RELDATE "11/24/03" #define DRV_RELDATE "August 26, 2008"
#define DRV_AUTHOR "David S. Miller (davem@redhat.com)" #define DRV_AUTHOR "David S. Miller (davem@davemloft.net)"
static char version[] = static char version[] =
DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n"; DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " " DRV_AUTHOR "\n";
@ -97,8 +97,8 @@ static int qec_global_reset(void __iomem *gregs)
static void qec_init(struct bigmac *bp) static void qec_init(struct bigmac *bp)
{ {
struct of_device *qec_op = bp->qec_op;
void __iomem *gregs = bp->gregs; void __iomem *gregs = bp->gregs;
struct sbus_dev *qec_sdev = bp->qec_sdev;
u8 bsizes = bp->bigmac_bursts; u8 bsizes = bp->bigmac_bursts;
u32 regval; u32 regval;
@ -113,13 +113,13 @@ static void qec_init(struct bigmac *bp)
sbus_writel(GLOB_PSIZE_2048, gregs + GLOB_PSIZE); sbus_writel(GLOB_PSIZE_2048, gregs + GLOB_PSIZE);
/* All of memsize is given to bigmac. */ /* All of memsize is given to bigmac. */
sbus_writel(qec_sdev->reg_addrs[1].reg_size, sbus_writel(resource_size(&qec_op->resource[1]),
gregs + GLOB_MSIZE); gregs + GLOB_MSIZE);
/* Half to the transmitter, half to the receiver. */ /* Half to the transmitter, half to the receiver. */
sbus_writel(qec_sdev->reg_addrs[1].reg_size >> 1, sbus_writel(resource_size(&qec_op->resource[1]) >> 1,
gregs + GLOB_TSIZE); gregs + GLOB_TSIZE);
sbus_writel(qec_sdev->reg_addrs[1].reg_size >> 1, sbus_writel(resource_size(&qec_op->resource[1]) >> 1,
gregs + GLOB_RSIZE); gregs + GLOB_RSIZE);
} }
@ -240,7 +240,7 @@ static void bigmac_init_rings(struct bigmac *bp, int from_irq)
skb_reserve(skb, 34); skb_reserve(skb, 34);
bb->be_rxd[i].rx_addr = bb->be_rxd[i].rx_addr =
dma_map_single(&bp->bigmac_sdev->ofdev.dev, dma_map_single(&bp->bigmac_op->dev,
skb->data, skb->data,
RX_BUF_ALLOC_SIZE - 34, RX_BUF_ALLOC_SIZE - 34,
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
@ -778,7 +778,7 @@ static void bigmac_tx(struct bigmac *bp)
skb = bp->tx_skbs[elem]; skb = bp->tx_skbs[elem];
bp->enet_stats.tx_packets++; bp->enet_stats.tx_packets++;
bp->enet_stats.tx_bytes += skb->len; bp->enet_stats.tx_bytes += skb->len;
dma_unmap_single(&bp->bigmac_sdev->ofdev.dev, dma_unmap_single(&bp->bigmac_op->dev,
this->tx_addr, skb->len, this->tx_addr, skb->len,
DMA_TO_DEVICE); DMA_TO_DEVICE);
@ -833,7 +833,7 @@ static void bigmac_rx(struct bigmac *bp)
drops++; drops++;
goto drop_it; goto drop_it;
} }
dma_unmap_single(&bp->bigmac_sdev->ofdev.dev, dma_unmap_single(&bp->bigmac_op->dev,
this->rx_addr, this->rx_addr,
RX_BUF_ALLOC_SIZE - 34, RX_BUF_ALLOC_SIZE - 34,
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
@ -842,7 +842,7 @@ static void bigmac_rx(struct bigmac *bp)
skb_put(new_skb, ETH_FRAME_LEN); skb_put(new_skb, ETH_FRAME_LEN);
skb_reserve(new_skb, 34); skb_reserve(new_skb, 34);
this->rx_addr = this->rx_addr =
dma_map_single(&bp->bigmac_sdev->ofdev.dev, dma_map_single(&bp->bigmac_op->dev,
new_skb->data, new_skb->data,
RX_BUF_ALLOC_SIZE - 34, RX_BUF_ALLOC_SIZE - 34,
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
@ -860,11 +860,11 @@ static void bigmac_rx(struct bigmac *bp)
} }
skb_reserve(copy_skb, 2); skb_reserve(copy_skb, 2);
skb_put(copy_skb, len); skb_put(copy_skb, len);
dma_sync_single_for_cpu(&bp->bigmac_sdev->ofdev.dev, dma_sync_single_for_cpu(&bp->bigmac_op->dev,
this->rx_addr, len, this->rx_addr, len,
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
skb_copy_to_linear_data(copy_skb, (unsigned char *)skb->data, len); skb_copy_to_linear_data(copy_skb, (unsigned char *)skb->data, len);
dma_sync_single_for_device(&bp->bigmac_sdev->ofdev.dev, dma_sync_single_for_device(&bp->bigmac_op->dev,
this->rx_addr, len, this->rx_addr, len,
DMA_FROM_DEVICE); DMA_FROM_DEVICE);
@ -962,7 +962,7 @@ static int bigmac_start_xmit(struct sk_buff *skb, struct net_device *dev)
u32 mapping; u32 mapping;
len = skb->len; len = skb->len;
mapping = dma_map_single(&bp->bigmac_sdev->ofdev.dev, skb->data, mapping = dma_map_single(&bp->bigmac_op->dev, skb->data,
len, DMA_TO_DEVICE); len, DMA_TO_DEVICE);
/* Avoid a race... */ /* Avoid a race... */
@ -1055,12 +1055,8 @@ static void bigmac_set_multicast(struct net_device *dev)
/* Ethtool support... */ /* Ethtool support... */
static void bigmac_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info) static void bigmac_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info)
{ {
struct bigmac *bp = dev->priv;
strcpy(info->driver, "sunbmac"); strcpy(info->driver, "sunbmac");
strcpy(info->version, "2.0"); strcpy(info->version, "2.0");
sprintf(info->bus_info, "SBUS:%d",
bp->qec_sdev->slot);
} }
static u32 bigmac_get_link(struct net_device *dev) static u32 bigmac_get_link(struct net_device *dev)
@ -1079,14 +1075,15 @@ static const struct ethtool_ops bigmac_ethtool_ops = {
.get_link = bigmac_get_link, .get_link = bigmac_get_link,
}; };
static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev) static int __devinit bigmac_ether_init(struct of_device *op,
struct of_device *qec_op)
{ {
struct net_device *dev;
static int version_printed; static int version_printed;
struct bigmac *bp; struct net_device *dev;
u8 bsizes, bsizes_more; u8 bsizes, bsizes_more;
int i;
DECLARE_MAC_BUF(mac); DECLARE_MAC_BUF(mac);
struct bigmac *bp;
int i;
/* Get a new device struct for this interface. */ /* Get a new device struct for this interface. */
dev = alloc_etherdev(sizeof(struct bigmac)); dev = alloc_etherdev(sizeof(struct bigmac));
@ -1096,31 +1093,20 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
if (version_printed++ == 0) if (version_printed++ == 0)
printk(KERN_INFO "%s", version); printk(KERN_INFO "%s", version);
dev->base_addr = (long) qec_sdev;
for (i = 0; i < 6; i++) for (i = 0; i < 6; i++)
dev->dev_addr[i] = idprom->id_ethaddr[i]; dev->dev_addr[i] = idprom->id_ethaddr[i];
/* Setup softc, with backpointers to QEC and BigMAC SBUS device structs. */ /* Setup softc, with backpointers to QEC and BigMAC SBUS device structs. */
bp = dev->priv; bp = netdev_priv(dev);
bp->qec_sdev = qec_sdev; bp->qec_op = qec_op;
bp->bigmac_sdev = qec_sdev->child; bp->bigmac_op = op;
SET_NETDEV_DEV(dev, &bp->bigmac_sdev->ofdev.dev); SET_NETDEV_DEV(dev, &op->dev);
spin_lock_init(&bp->lock); spin_lock_init(&bp->lock);
/* Verify the registers we expect, are actually there. */
if ((bp->bigmac_sdev->num_registers != 3) ||
(bp->qec_sdev->num_registers != 2)) {
printk(KERN_ERR "BIGMAC: Device does not have 2 and 3 regs, it has %d and %d.\n",
bp->qec_sdev->num_registers,
bp->bigmac_sdev->num_registers);
printk(KERN_ERR "BIGMAC: Would you like that for here or to go?\n");
goto fail_and_cleanup;
}
/* Map in QEC global control registers. */ /* Map in QEC global control registers. */
bp->gregs = sbus_ioremap(&bp->qec_sdev->resource[0], 0, bp->gregs = of_ioremap(&qec_op->resource[0], 0,
GLOB_REG_SIZE, "BigMAC QEC GLobal Regs"); GLOB_REG_SIZE, "BigMAC QEC GLobal Regs");
if (!bp->gregs) { if (!bp->gregs) {
printk(KERN_ERR "BIGMAC: Cannot map QEC global registers.\n"); printk(KERN_ERR "BIGMAC: Cannot map QEC global registers.\n");
@ -1138,13 +1124,8 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
goto fail_and_cleanup; goto fail_and_cleanup;
/* Get supported SBUS burst sizes. */ /* Get supported SBUS burst sizes. */
bsizes = prom_getintdefault(bp->qec_sdev->prom_node, bsizes = of_getintprop_default(qec_op->node, "burst-sizes", 0xff);
"burst-sizes", bsizes_more = of_getintprop_default(qec_op->node, "burst-sizes", 0xff);
0xff);
bsizes_more = prom_getintdefault(bp->qec_sdev->bus->prom_node,
"burst-sizes",
0xff);
bsizes &= 0xff; bsizes &= 0xff;
if (bsizes_more != 0xff) if (bsizes_more != 0xff)
@ -1158,7 +1139,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
qec_init(bp); qec_init(bp);
/* Map in the BigMAC channel registers. */ /* Map in the BigMAC channel registers. */
bp->creg = sbus_ioremap(&bp->bigmac_sdev->resource[0], 0, bp->creg = of_ioremap(&op->resource[0], 0,
CREG_REG_SIZE, "BigMAC QEC Channel Regs"); CREG_REG_SIZE, "BigMAC QEC Channel Regs");
if (!bp->creg) { if (!bp->creg) {
printk(KERN_ERR "BIGMAC: Cannot map QEC channel registers.\n"); printk(KERN_ERR "BIGMAC: Cannot map QEC channel registers.\n");
@ -1166,7 +1147,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
} }
/* Map in the BigMAC control registers. */ /* Map in the BigMAC control registers. */
bp->bregs = sbus_ioremap(&bp->bigmac_sdev->resource[1], 0, bp->bregs = of_ioremap(&op->resource[1], 0,
BMAC_REG_SIZE, "BigMAC Primary Regs"); BMAC_REG_SIZE, "BigMAC Primary Regs");
if (!bp->bregs) { if (!bp->bregs) {
printk(KERN_ERR "BIGMAC: Cannot map BigMAC primary registers.\n"); printk(KERN_ERR "BIGMAC: Cannot map BigMAC primary registers.\n");
@ -1176,7 +1157,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
/* Map in the BigMAC transceiver registers, this is how you poke at /* Map in the BigMAC transceiver registers, this is how you poke at
* the BigMAC's PHY. * the BigMAC's PHY.
*/ */
bp->tregs = sbus_ioremap(&bp->bigmac_sdev->resource[2], 0, bp->tregs = of_ioremap(&op->resource[2], 0,
TCVR_REG_SIZE, "BigMAC Transceiver Regs"); TCVR_REG_SIZE, "BigMAC Transceiver Regs");
if (!bp->tregs) { if (!bp->tregs) {
printk(KERN_ERR "BIGMAC: Cannot map BigMAC transceiver registers.\n"); printk(KERN_ERR "BIGMAC: Cannot map BigMAC transceiver registers.\n");
@ -1187,7 +1168,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
bigmac_stop(bp); bigmac_stop(bp);
/* Allocate transmit/receive descriptor DVMA block. */ /* Allocate transmit/receive descriptor DVMA block. */
bp->bmac_block = dma_alloc_coherent(&bp->bigmac_sdev->ofdev.dev, bp->bmac_block = dma_alloc_coherent(&bp->bigmac_op->dev,
PAGE_SIZE, PAGE_SIZE,
&bp->bblock_dvma, GFP_ATOMIC); &bp->bblock_dvma, GFP_ATOMIC);
if (bp->bmac_block == NULL || bp->bblock_dvma == 0) { if (bp->bmac_block == NULL || bp->bblock_dvma == 0) {
@ -1196,7 +1177,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
} }
/* Get the board revision of this BigMAC. */ /* Get the board revision of this BigMAC. */
bp->board_rev = prom_getintdefault(bp->bigmac_sdev->prom_node, bp->board_rev = of_getintprop_default(bp->bigmac_op->node,
"board-version", 1); "board-version", 1);
/* Init auto-negotiation timer state. */ /* Init auto-negotiation timer state. */
@ -1221,7 +1202,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
dev->watchdog_timeo = 5*HZ; dev->watchdog_timeo = 5*HZ;
/* Finish net device registration. */ /* Finish net device registration. */
dev->irq = bp->bigmac_sdev->irqs[0]; dev->irq = bp->bigmac_op->irqs[0];
dev->dma = 0; dev->dma = 0;
if (register_netdev(dev)) { if (register_netdev(dev)) {
@ -1229,7 +1210,7 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
goto fail_and_cleanup; goto fail_and_cleanup;
} }
dev_set_drvdata(&bp->bigmac_sdev->ofdev.dev, bp); dev_set_drvdata(&bp->bigmac_op->dev, bp);
printk(KERN_INFO "%s: BigMAC 100baseT Ethernet %s\n", printk(KERN_INFO "%s: BigMAC 100baseT Ethernet %s\n",
dev->name, print_mac(mac, dev->dev_addr)); dev->name, print_mac(mac, dev->dev_addr));
@ -1240,16 +1221,16 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
/* Something went wrong, undo whatever we did so far. */ /* Something went wrong, undo whatever we did so far. */
/* Free register mappings if any. */ /* Free register mappings if any. */
if (bp->gregs) if (bp->gregs)
sbus_iounmap(bp->gregs, GLOB_REG_SIZE); of_iounmap(&qec_op->resource[0], bp->gregs, GLOB_REG_SIZE);
if (bp->creg) if (bp->creg)
sbus_iounmap(bp->creg, CREG_REG_SIZE); of_iounmap(&op->resource[0], bp->creg, CREG_REG_SIZE);
if (bp->bregs) if (bp->bregs)
sbus_iounmap(bp->bregs, BMAC_REG_SIZE); of_iounmap(&op->resource[1], bp->bregs, BMAC_REG_SIZE);
if (bp->tregs) if (bp->tregs)
sbus_iounmap(bp->tregs, TCVR_REG_SIZE); of_iounmap(&op->resource[2], bp->tregs, TCVR_REG_SIZE);
if (bp->bmac_block) if (bp->bmac_block)
dma_free_coherent(&bp->bigmac_sdev->ofdev.dev, dma_free_coherent(&bp->bigmac_op->dev,
PAGE_SIZE, PAGE_SIZE,
bp->bmac_block, bp->bmac_block,
bp->bblock_dvma); bp->bblock_dvma);
@ -1259,47 +1240,48 @@ static int __devinit bigmac_ether_init(struct sbus_dev *qec_sdev)
return -ENODEV; return -ENODEV;
} }
/* QEC can be the parent of either QuadEthernet or /* QEC can be the parent of either QuadEthernet or a BigMAC. We want
* a BigMAC. We want the latter. * the latter.
*/ */
static int __devinit bigmac_sbus_probe(struct of_device *dev, const struct of_device_id *match) static int __devinit bigmac_sbus_probe(struct of_device *op,
const struct of_device_id *match)
{ {
struct sbus_dev *sdev = to_sbus_device(&dev->dev); struct device *parent = op->dev.parent;
struct device_node *dp = dev->node; struct of_device *qec_op;
if (!strcmp(dp->name, "be")) qec_op = to_of_device(parent);
sdev = sdev->parent;
return bigmac_ether_init(sdev); return bigmac_ether_init(op, qec_op);
} }
static int __devexit bigmac_sbus_remove(struct of_device *dev) static int __devexit bigmac_sbus_remove(struct of_device *op)
{ {
struct bigmac *bp = dev_get_drvdata(&dev->dev); struct bigmac *bp = dev_get_drvdata(&op->dev);
struct device *parent = op->dev.parent;
struct net_device *net_dev = bp->dev; struct net_device *net_dev = bp->dev;
struct of_device *qec_op;
qec_op = to_of_device(parent);
unregister_netdevice(net_dev); unregister_netdevice(net_dev);
sbus_iounmap(bp->gregs, GLOB_REG_SIZE); of_iounmap(&qec_op->resource[0], bp->gregs, GLOB_REG_SIZE);
sbus_iounmap(bp->creg, CREG_REG_SIZE); of_iounmap(&op->resource[0], bp->creg, CREG_REG_SIZE);
sbus_iounmap(bp->bregs, BMAC_REG_SIZE); of_iounmap(&op->resource[1], bp->bregs, BMAC_REG_SIZE);
sbus_iounmap(bp->tregs, TCVR_REG_SIZE); of_iounmap(&op->resource[2], bp->tregs, TCVR_REG_SIZE);
dma_free_coherent(&bp->bigmac_sdev->ofdev.dev, dma_free_coherent(&op->dev,
PAGE_SIZE, PAGE_SIZE,
bp->bmac_block, bp->bmac_block,
bp->bblock_dvma); bp->bblock_dvma);
free_netdev(net_dev); free_netdev(net_dev);
dev_set_drvdata(&dev->dev, NULL); dev_set_drvdata(&op->dev, NULL);
return 0; return 0;
} }
static struct of_device_id bigmac_sbus_match[] = { static struct of_device_id bigmac_sbus_match[] = {
{
.name = "qec",
},
{ {
.name = "be", .name = "be",
}, },
@ -1317,7 +1299,7 @@ static struct of_platform_driver bigmac_sbus_driver = {
static int __init bigmac_init(void) static int __init bigmac_init(void)
{ {
return of_register_driver(&bigmac_sbus_driver, &sbus_bus_type); return of_register_driver(&bigmac_sbus_driver, &of_bus_type);
} }
static void __exit bigmac_exit(void) static void __exit bigmac_exit(void)

4
drivers/net/sunbmac.h
View File

@ -329,8 +329,8 @@ struct bigmac {
unsigned int timer_ticks; unsigned int timer_ticks;
struct net_device_stats enet_stats; struct net_device_stats enet_stats;
struct sbus_dev *qec_sdev; struct of_device *qec_op;
struct sbus_dev *bigmac_sdev; struct of_device *bigmac_op;
struct net_device *dev; struct net_device *dev;
}; };