net: dm9000: Add DM support
Add support for U-Boot DM and DT probing.
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c
index 6552079..78ce536 100644
--- a/drivers/net/dm9000x.c
+++ b/drivers/net/dm9000x.c
@@ -51,6 +51,7 @@
#include <common.h>
#include <command.h>
+#include <dm.h>
#include <malloc.h>
#include <net.h>
#include <asm/io.h>
@@ -74,7 +75,9 @@
void (*outblk)(struct dm9000_priv *db, void *data_ptr, int count);
void (*inblk)(struct dm9000_priv *db, void *data_ptr, int count);
void (*rx_status)(struct dm9000_priv *db, u16 *rxstatus, u16 *rxlen);
+#ifndef CONFIG_DM_ETH
struct eth_device dev;
+#endif
void __iomem *base_io;
void __iomem *base_data;
};
@@ -569,6 +572,7 @@
static void dm9000_get_enetaddr(struct dm9000_priv *db, u8 *enetaddr) {}
#endif
+#ifndef CONFIG_DM_ETH
static int dm9000_init(struct eth_device *dev, struct bd_info *bd)
{
struct dm9000_priv *db = container_of(dev, struct dm9000_priv, dev);
@@ -629,3 +633,117 @@
return 0;
}
+#else /* ifdef CONFIG_DM_ETH */
+static int dm9000_start(struct udevice *dev)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_plat(dev);
+
+ return dm9000_init_common(db, pdata->enetaddr);
+}
+
+static void dm9000_stop(struct udevice *dev)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+
+ dm9000_halt_common(db);
+}
+
+static int dm9000_send(struct udevice *dev, void *packet, int length)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ int ret;
+
+ ret = dm9000_send_common(db, packet, length);
+
+ return ret ? 0 : -ETIMEDOUT;
+}
+
+static int dm9000_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ uchar *data = net_rx_packets[0];
+ int ret;
+
+ ret = dm9000_recv_common(db, data);
+ if (ret)
+ *packetp = (void *)data;
+
+ return ret ? ret : -EAGAIN;
+}
+
+static int dm9000_write_hwaddr(struct udevice *dev)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_plat(dev);
+ int i, oft;
+
+ /* fill device MAC address registers */
+ for (i = 0, oft = DM9000_PAR; i < 6; i++, oft++)
+ dm9000_iow(db, oft, pdata->enetaddr[i]);
+
+ for (i = 0, oft = 0x16; i < 8; i++, oft++)
+ dm9000_iow(db, oft, 0xff);
+
+ /* read back mac, just to be sure */
+ for (i = 0, oft = 0x10; i < 6; i++, oft++)
+ debug("%02x:", dm9000_ior(db, oft));
+
+ debug("\n");
+
+ return 0;
+}
+
+static int dm9000_read_rom_hwaddr(struct udevice *dev)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_plat(dev);
+
+ dm9000_get_enetaddr(db, pdata->enetaddr);
+
+ return !is_valid_ethaddr(pdata->enetaddr);
+}
+
+static int dm9000_bind(struct udevice *dev)
+{
+ return device_set_name(dev, dev->name);
+}
+
+static int dm9000_of_to_plat(struct udevice *dev)
+{
+ struct dm9000_priv *db = dev_get_priv(dev);
+ struct eth_pdata *pdata = dev_get_plat(dev);
+
+ pdata->iobase = dev_read_addr_index(dev, 0);
+ db->base_io = (void __iomem *)pdata->iobase;
+ db->base_data = (void __iomem *)dev_read_addr_index(dev, 1);
+
+ return 0;
+}
+
+static const struct eth_ops dm9000_ops = {
+ .start = dm9000_start,
+ .stop = dm9000_stop,
+ .send = dm9000_send,
+ .recv = dm9000_recv,
+ .write_hwaddr = dm9000_write_hwaddr,
+ .read_rom_hwaddr = dm9000_read_rom_hwaddr,
+};
+
+static const struct udevice_id dm9000_ids[] = {
+ { .compatible = "davicom,dm9000" },
+ { }
+};
+
+U_BOOT_DRIVER(dm9000) = {
+ .name = "eth_dm9000",
+ .id = UCLASS_ETH,
+ .of_match = dm9000_ids,
+ .bind = dm9000_bind,
+ .of_to_plat = dm9000_of_to_plat,
+ .ops = &dm9000_ops,
+ .priv_auto = sizeof(struct dm9000_priv),
+ .plat_auto = sizeof(struct eth_pdata),
+ .flags = DM_FLAG_ALLOC_PRIV_DMA,
+};
+#endif