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