https://github.com/torvalds/linux
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Tip revision: c79f46a282390e0f5b306007bf7b11a46d529538 authored by Linus Torvalds on 05 January 2020, 22:23:27 UTC
Linux 5.5-rc5
Tip revision: c79f46a
com9026.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __COM9026_H
#define __COM9026_H

/* COM 9026 controller chip --> ARCnet register addresses */

#define COM9026_REG_W_INTMASK	0	/* writable */
#define COM9026_REG_R_STATUS	0	/* readable */
#define COM9026_REG_W_COMMAND	1	/* writable, returns random vals on read (?) */
#define COM9026_REG_RW_CONFIG	2	/* Configuration register */
#define COM9026_REG_R_RESET	8	/* software reset (on read) */
#define COM9026_REG_RW_MEMDATA	12	/* Data port for IO-mapped memory */
#define COM9026_REG_W_ADDR_LO	14	/* Control registers for said */
#define COM9026_REG_W_ADDR_HI	15

#define COM9026_REG_R_STATION	1	/* Station ID */

#endif
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