change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/drivers/net/ethernet/aeroflex/greth.c
..
..
@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Aeroflex Gaisler GRETH 10/100/1G Ethernet MAC.
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  *
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@@ -7,15 +8,10 @@
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  * available in the GRLIB VHDL IP core library.
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  *
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  * Full documentation of both cores can be found here:
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- * http://www.gaisler.com/products/grlib/grip.pdf
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+ * https://www.gaisler.com/products/grlib/grip.pdf
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  *
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  * The Gigabit version supports scatter/gather DMA, any alignment of
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  * buffers and checksum offloading.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License as published by the
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- * Free Software Foundation; either version 2 of the License, or (at your
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- * option) any later version.
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  *
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  * Contributors: Kristoffer Glembo
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  *               Daniel Hellstrom
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@@ -114,7 +110,7 @@
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 		print_hex_dump(KERN_DEBUG, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
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 			       skb_frag_address(&skb_shinfo(skb)->frags[i]),
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-			       skb_shinfo(skb)->frags[i].size, true);
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+			       skb_frag_size(&skb_shinfo(skb)->frags[i]), true);
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 	}
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 }
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@@ -262,6 +258,7 @@
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 			if (dma_mapping_error(greth->dev, dma_addr)) {
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 				if (netif_msg_ifup(greth))
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 					dev_err(greth->dev, "Could not create initial DMA mapping\n");
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+				dev_kfree_skb(skb);
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 				goto cleanup;
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 			}
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 			greth->rx_skbuff[i] = skb;
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@@ -613,7 +610,6 @@
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 		napi_schedule(&greth->napi);
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 	}
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-	mmiowb();
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 	spin_unlock(&greth->devlock);
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 	return retval;
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@@ -1119,9 +1115,7 @@
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 	strlcpy(info->driver, dev_driver_string(greth->dev),
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 		sizeof(info->driver));
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-	strlcpy(info->version, "revision: 1.0", sizeof(info->version));
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 	strlcpy(info->bus_info, greth->dev->bus->name, sizeof(info->bus_info));
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-	strlcpy(info->fw_version, "N/A", sizeof(info->fw_version));
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 }
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1120
 
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 static void greth_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
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@@ -1279,11 +1273,11 @@
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 	}
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 	if (greth->gbit_mac)
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-		phy->supported &= PHY_GBIT_FEATURES;
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+		phy_set_max_speed(phy, SPEED_1000);
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 	else
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-		phy->supported &= PHY_BASIC_FEATURES;
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+		phy_set_max_speed(phy, SPEED_100);
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-	phy->advertising = phy->supported;
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+	linkmode_copy(phy->advertising, phy->supported);
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 	greth->link = 0;
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 	greth->speed = 0;
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@@ -1433,18 +1427,18 @@
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 	}
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 	/* Allocate TX descriptor ring in coherent memory */
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-	greth->tx_bd_base = dma_zalloc_coherent(greth->dev, 1024,
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-						&greth->tx_bd_base_phys,
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-						GFP_KERNEL);
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+	greth->tx_bd_base = dma_alloc_coherent(greth->dev, 1024,
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+					       &greth->tx_bd_base_phys,
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+					       GFP_KERNEL);
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 	if (!greth->tx_bd_base) {
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 		err = -ENOMEM;
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 		goto error3;
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 	}
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 	/* Allocate RX descriptor ring in coherent memory */
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-	greth->rx_bd_base = dma_zalloc_coherent(greth->dev, 1024,
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-						&greth->rx_bd_base_phys,
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-						GFP_KERNEL);
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+	greth->rx_bd_base = dma_alloc_coherent(greth->dev, 1024,
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+					       &greth->rx_bd_base_phys,
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+					       GFP_KERNEL);
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 	if (!greth->rx_bd_base) {
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 		err = -ENOMEM;
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 		goto error4;
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@@ -1459,7 +1453,7 @@
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 		const u8 *addr;
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 		addr = of_get_mac_address(ofdev->dev.of_node);
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-		if (addr) {
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+		if (!IS_ERR(addr)) {
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 			for (i = 0; i < 6; i++)
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 				macaddr[i] = (unsigned int) addr[i];
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 		} else {