xref: /openbmc/linux/drivers/net/ethernet/amd/hplance.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Random defines and structures for the HP Lance driver.
3  * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
4  * Based on the Sun Lance driver and the NetBSD HP Lance driver
5  */
6 
7 /* Registers */
8 #define HPLANCE_ID		0x01		/* DIO register: ID byte */
9 #define HPLANCE_STATUS		0x03		/* DIO register: interrupt enable/status */
10 
11 /* Control and status bits for the status register */
12 #define LE_IE 0x80                                /* interrupt enable */
13 #define LE_IR 0x40                                /* interrupt requested */
14 #define LE_LOCK 0x08                              /* lock status register */
15 #define LE_ACK 0x04                               /* ack of lock */
16 #define LE_JAB 0x02                               /* loss of tx clock (???) */
17 /* We can also extract the IPL from the status register with the standard
18  * DIO_IPL(hplance) macro, or using dio_scodetoipl()
19  */
20 
21 /* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
22  * memory and NVRAM:
23  */
24 #define HPLANCE_IDOFF 0                           /* board baseaddr */
25 #define HPLANCE_REGOFF 0x4000                     /* lance registers */
26 #define HPLANCE_MEMOFF 0x8000                     /* struct lance_init_block */
27 #define HPLANCE_NVRAMOFF 0xC008                   /* etheraddress as one *nibble* per byte */
28