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 --- V2: Add RB from Ramon --- drivers/net/dm9000x.c | 118 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 118 insertions(+)
diff --git a/drivers/net/dm9000x.c b/drivers/net/dm9000x.c index 6552079748a..78ce536d4a3 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 @@ struct dm9000_priv { 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) 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 @@ int dm9000_initialize(struct bd_info *bis)
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