xref: /openbmc/linux/drivers/net/ethernet/amd/hplance.h (revision b2441318)
1b2441318SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0 */
2b955f6caSJeff Kirsher /* Random defines and structures for the HP Lance driver.
3b955f6caSJeff Kirsher  * Copyright (C) 05/1998 Peter Maydell <pmaydell@chiark.greenend.org.uk>
4b955f6caSJeff Kirsher  * Based on the Sun Lance driver and the NetBSD HP Lance driver
5b955f6caSJeff Kirsher  */
6b955f6caSJeff Kirsher 
7b955f6caSJeff Kirsher /* Registers */
8b955f6caSJeff Kirsher #define HPLANCE_ID		0x01		/* DIO register: ID byte */
9b955f6caSJeff Kirsher #define HPLANCE_STATUS		0x03		/* DIO register: interrupt enable/status */
10b955f6caSJeff Kirsher 
11b955f6caSJeff Kirsher /* Control and status bits for the status register */
12b955f6caSJeff Kirsher #define LE_IE 0x80                                /* interrupt enable */
13b955f6caSJeff Kirsher #define LE_IR 0x40                                /* interrupt requested */
14b955f6caSJeff Kirsher #define LE_LOCK 0x08                              /* lock status register */
15b955f6caSJeff Kirsher #define LE_ACK 0x04                               /* ack of lock */
16b955f6caSJeff Kirsher #define LE_JAB 0x02                               /* loss of tx clock (???) */
17b955f6caSJeff Kirsher /* We can also extract the IPL from the status register with the standard
18b955f6caSJeff Kirsher  * DIO_IPL(hplance) macro, or using dio_scodetoipl()
19b955f6caSJeff Kirsher  */
20b955f6caSJeff Kirsher 
21b955f6caSJeff Kirsher /* These are the offsets for the DIO regs (hplance_reg), lance_ioreg,
22b955f6caSJeff Kirsher  * memory and NVRAM:
23b955f6caSJeff Kirsher  */
24b955f6caSJeff Kirsher #define HPLANCE_IDOFF 0                           /* board baseaddr */
25b955f6caSJeff Kirsher #define HPLANCE_REGOFF 0x4000                     /* lance registers */
26b955f6caSJeff Kirsher #define HPLANCE_MEMOFF 0x8000                     /* struct lance_init_block */
27b955f6caSJeff Kirsher #define HPLANCE_NVRAMOFF 0xC008                   /* etheraddress as one *nibble* per byte */
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