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authorTomasz Figa <tomasz.figa@gmail.com>2013-05-20 09:16:58 +0000
committerDavid S. Miller <davem@davemloft.net>2013-05-20 14:03:51 -0700
commit0b8bf1baabe56f721d541953f083560d0660d78f (patch)
tree38953bf7cf973921fa2ab9c696450aba2476d170 /drivers/net/ethernet/davicom
parentaafc787e41fd8a4d3a4378b028d8d8f8d38d9bb6 (diff)
downloadlinux-0b8bf1baabe56f721d541953f083560d0660d78f.tar.bz2
net: dm9000: Allow instantiation using device tree
This patch adds Device Tree support to dm9000 driver. Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com> Reviewed-by: Sylwester Nawrocki <sylvester.nawrocki@gmail.com> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/davicom')
-rw-r--r--drivers/net/ethernet/davicom/dm9000.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index a2408c84bbdd..dd243a1b03e0 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -29,6 +29,8 @@
#include <linux/spinlock.h>
#include <linux/crc32.h>
#include <linux/mii.h>
+#include <linux/of.h>
+#include <linux/of_net.h>
#include <linux/ethtool.h>
#include <linux/dm9000.h>
#include <linux/delay.h>
@@ -1351,6 +1353,31 @@ static const struct net_device_ops dm9000_netdev_ops = {
#endif
};
+static struct dm9000_plat_data *dm9000_parse_dt(struct device *dev)
+{
+ struct dm9000_plat_data *pdata;
+ struct device_node *np = dev->of_node;
+ const void *mac_addr;
+
+ if (!IS_ENABLED(CONFIG_OF) || !np)
+ return NULL;
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ if (of_find_property(np, "davicom,ext-phy", NULL))
+ pdata->flags |= DM9000_PLATF_EXT_PHY;
+ if (of_find_property(np, "davicom,no-eeprom", NULL))
+ pdata->flags |= DM9000_PLATF_NO_EEPROM;
+
+ mac_addr = of_get_mac_address(np);
+ if (mac_addr)
+ memcpy(pdata->dev_addr, mac_addr, sizeof(pdata->dev_addr));
+
+ return pdata;
+}
+
/*
* Search DM9000 board, allocate space and register it
*/
@@ -1366,6 +1393,12 @@ dm9000_probe(struct platform_device *pdev)
int i;
u32 id_val;
+ if (!pdata) {
+ pdata = dm9000_parse_dt(&pdev->dev);
+ if (IS_ERR(pdata))
+ return PTR_ERR(pdata);
+ }
+
/* Init network device */
ndev = alloc_etherdev(sizeof(struct board_info));
if (!ndev)
@@ -1676,11 +1709,20 @@ dm9000_drv_remove(struct platform_device *pdev)
return 0;
}
+#ifdef CONFIG_OF
+static const struct of_device_id dm9000_of_matches[] = {
+ { .compatible = "davicom,dm9000", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dm9000_of_matches);
+#endif
+
static struct platform_driver dm9000_driver = {
.driver = {
.name = "dm9000",
.owner = THIS_MODULE,
.pm = &dm9000_drv_pm_ops,
+ .of_match_table = of_match_ptr(dm9000_of_matches),
},
.probe = dm9000_probe,
.remove = dm9000_drv_remove,