1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * MV-643XX ethernet platform device data definition file.
4  */
5 
6 #ifndef __LINUX_MV643XX_ETH_H
7 #define __LINUX_MV643XX_ETH_H
8 
9 #include <linux/mbus.h>
10 #include <linux/if_ether.h>
11 
12 #define MV643XX_ETH_SHARED_NAME		"mv643xx_eth"
13 #define MV643XX_ETH_NAME		"mv643xx_eth_port"
14 #define MV643XX_ETH_SHARED_REGS		0x2000
15 #define MV643XX_ETH_SHARED_REGS_SIZE	0x2000
16 #define MV643XX_ETH_BAR_4		0x2220
17 #define MV643XX_ETH_SIZE_REG_4		0x2224
18 #define MV643XX_ETH_BASE_ADDR_ENABLE_REG	0x2290
19 
20 #define MV643XX_TX_CSUM_DEFAULT_LIMIT	0
21 
22 struct mv643xx_eth_shared_platform_data {
23 	struct mbus_dram_target_info	*dram;
24 	/*
25 	 * Max packet size for Tx IP/Layer 4 checksum, when set to 0, default
26 	 * limit of 9KiB will be used.
27 	 */
28 	int			tx_csum_limit;
29 };
30 
31 #define MV643XX_ETH_PHY_ADDR_DEFAULT	0
32 #define MV643XX_ETH_PHY_ADDR(x)		(0x80 | (x))
33 #define MV643XX_ETH_PHY_NONE		0xff
34 
35 struct device_node;
36 struct mv643xx_eth_platform_data {
37 	/*
38 	 * Pointer back to our parent instance, and our port number.
39 	 */
40 	struct platform_device	*shared;
41 	int			port_number;
42 
43 	/*
44 	 * Whether a PHY is present, and if yes, at which address.
45 	 */
46 	int			phy_addr;
47 	struct device_node	*phy_node;
48 
49 	/*
50 	 * Use this MAC address if it is valid, overriding the
51 	 * address that is already in the hardware.
52 	 */
53 	u8			mac_addr[ETH_ALEN];
54 
55 	/*
56 	 * If speed is 0, autonegotiation is enabled.
57 	 *   Valid values for speed: 0, SPEED_10, SPEED_100, SPEED_1000.
58 	 *   Valid values for duplex: DUPLEX_HALF, DUPLEX_FULL.
59 	 */
60 	int			speed;
61 	int			duplex;
62 
63 	/*
64 	 * How many RX/TX queues to use.
65 	 */
66 	int			rx_queue_count;
67 	int			tx_queue_count;
68 
69 	/*
70 	 * Override default RX/TX queue sizes if nonzero.
71 	 */
72 	int			rx_queue_size;
73 	int			tx_queue_size;
74 
75 	/*
76 	 * Use on-chip SRAM for RX/TX descriptors if size is nonzero
77 	 * and sufficient to contain all descriptors for the requested
78 	 * ring sizes.
79 	 */
80 	unsigned long		rx_sram_addr;
81 	int			rx_sram_size;
82 	unsigned long		tx_sram_addr;
83 	int			tx_sram_size;
84 };
85 
86 
87 #endif
88