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net: designware: Add decvicetree support 

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-09-04 23:10:06 +02:00
parent 8c3c7c5d64
commit c7278cc625
2 changed files with 46 additions and 9 deletions
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54
drivers/net/designware.c
View File

@ -29,12 +29,12 @@
#include <init.h>
#include <io.h>
#include <net.h>
#include <of_net.h>
#include <asm/mmu.h>
#include <net/designware.h>
#include <linux/phy.h>
#include "designware.h"
struct dw_eth_dev {
struct eth_device netdev;
struct mii_bus miibus;
@ -57,6 +57,14 @@ struct dw_eth_dev {
int enh_desc;
};
struct dw_eth_drvdata {
bool enh_desc;
};
static struct dw_eth_drvdata dwmac_370a_drvdata = {
.enh_desc = 1,
};
/* Speed specific definitions */
#define SPEED_10M 1
#define SPEED_100M 2
@ -399,6 +407,14 @@ static void dwc_version(struct device_d *dev, u32 hwid)
uid, synid);
}
static int dwc_probe_dt(struct device_d *dev, struct dw_eth_dev *priv)
{
priv->phy_addr = -1;
priv->interface = of_get_phy_mode(dev->device_node);
return 0;
}
static int dwc_ether_probe(struct device_d *dev)
{
struct dw_eth_dev *priv;
@ -406,14 +422,27 @@ static int dwc_ether_probe(struct device_d *dev)
struct mii_bus *miibus;
void __iomem *base;
struct dwc_ether_platform_data *pdata = dev->platform_data;
if (!pdata) {
printf("dwc_ether: no platform_data\n");
return -ENODEV;
}
int ret;
struct dw_eth_drvdata *drvdata;
priv = xzalloc(sizeof(struct dw_eth_dev));
ret = dev_get_drvdata(dev, (unsigned long *)&drvdata);
if (ret)
return ret;
priv->enh_desc = drvdata->enh_desc;
if (pdata) {
priv->phy_addr = pdata->phy_addr;
priv->interface = pdata->interface;
priv->fix_mac_speed = pdata->fix_mac_speed;
} else {
ret = dwc_probe_dt(dev, priv);
if (ret)
return ret;
}
base = dev_request_mem_region(dev, 0);
priv->mac_regs_p = base;
dwc_version(dev, readl(&priv->mac_regs_p->version));
@ -424,7 +453,6 @@ static int dwc_ether_probe(struct device_d *dev)
CONFIG_RX_DESCR_NUM * sizeof(struct dmamacdescr));
priv->txbuffs = dma_alloc(TX_TOTAL_BUFSIZE);
priv->rxbuffs = dma_alloc(RX_TOTAL_BUFSIZE);
priv->fix_mac_speed = pdata->fix_mac_speed;
edev = &priv->netdev;
miibus = &priv->miibus;
@ -439,8 +467,6 @@ static int dwc_ether_probe(struct device_d *dev)
edev->get_ethaddr = dwc_ether_get_ethaddr;
edev->set_ethaddr = dwc_ether_set_ethaddr;
priv->phy_addr = pdata->phy_addr;
priv->interface = pdata->interface;
miibus->parent = dev;
miibus->read = dwc_ether_mii_read;
miibus->write = dwc_ether_mii_write;
@ -455,9 +481,19 @@ static void dwc_ether_remove(struct device_d *dev)
{
}
static __maybe_unused struct of_device_id dwc_ether_compatible[] = {
{
.compatible = "snps,dwmac-3.70a",
.data = (unsigned long)&dwmac_370a_drvdata,
}, {
/* sentinel */
}
};
static struct driver_d dwc_ether_driver = {
.name = "designware_eth",
.probe = dwc_ether_probe,
.remove = dwc_ether_remove,
.of_compatible = DRV_OF_COMPAT(dwc_ether_compatible),
};
device_platform_driver(dwc_ether_driver);

1
include/net/designware.h
View File

@ -7,6 +7,7 @@ struct dwc_ether_platform_data {
int phy_addr;
phy_interface_t interface;
void (*fix_mac_speed)(int speed);
bool enh_desc; /* use Alternate/Enhanced Descriptor configurations */
};
#endif