xref: /openbmc/linux/arch/sparc/include/asm/auxio_64.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * auxio.h:  Definitions and code for the Auxiliary I/O registers.
4  *
5  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
6  *
7  * Refactoring for unified NCR/PCIO support 2002 Eric Brower (ebrower@usa.net)
8  */
9 #ifndef _SPARC64_AUXIO_H
10 #define _SPARC64_AUXIO_H
11 
12 /* AUXIO implementations:
13  * sbus-based NCR89C105 "Slavio"
14  *	LED/Floppy (AUX1) register
15  *	Power (AUX2) register
16  *
17  * ebus-based auxio on PCIO
18  *	LED Auxio Register
19  *	Power Auxio Register
20  *
21  * Register definitions from NCR _NCR89C105 Chip Specification_
22  *
23  * SLAVIO AUX1 @ 0x1900000
24  * -------------------------------------------------
25  * | (R) | (R) |  D  | (R) |  E  |  M  |  T  |  L  |
26  * -------------------------------------------------
27  * (R) - bit 7:6,4 are reserved and should be masked in s/w
28  *  D  - Floppy Density Sense (1=high density) R/O
29  *  E  - Link Test Enable, directly reflected on AT&T 7213 LTE pin
30  *  M  - Monitor/Mouse Mux, directly reflected on MON_MSE_MUX pin
31  *  T  - Terminal Count: sends TC pulse to 82077 floppy controller
32  *  L  - System LED on front panel (0=off, 1=on)
33  */
34 #define AUXIO_AUX1_MASK		0xc0 /* Mask bits 		*/
35 #define AUXIO_AUX1_FDENS	0x20 /* Floppy Density Sense	*/
36 #define AUXIO_AUX1_LTE 		0x08 /* Link Test Enable 	*/
37 #define AUXIO_AUX1_MMUX		0x04 /* Monitor/Mouse Mux	*/
38 #define AUXIO_AUX1_FTCNT	0x02 /* Terminal Count, 	*/
39 #define AUXIO_AUX1_LED		0x01 /* System LED		*/
40 
41 /* SLAVIO AUX2 @ 0x1910000
42  * -------------------------------------------------
43  * | (R) | (R) |  D  | (R) | (R) | (R) |  C  |  F  |
44  * -------------------------------------------------
45  * (R) - bits 7:6,4:2 are reserved and should be masked in s/w
46  *  D  - Power Failure Detect (1=power fail)
47  *  C  - Clear Power Failure Detect Int (1=clear)
48  *  F  - Power Off (1=power off)
49  */
50 #define AUXIO_AUX2_MASK		0xdc /* Mask Bits		*/
51 #define AUXIO_AUX2_PFAILDET	0x20 /* Power Fail Detect	*/
52 #define AUXIO_AUX2_PFAILCLR 	0x02 /* Clear Pwr Fail Det Intr	*/
53 #define AUXIO_AUX2_PWR_OFF	0x01 /* Power Off		*/
54 
55 /* Register definitions from Sun Microsystems _PCIO_ p/n 802-7837
56  *
57  * PCIO LED Auxio @ 0x726000
58  * -------------------------------------------------
59  * |             31:1 Unused                 | LED |
60  * -------------------------------------------------
61  * Bits 31:1 unused
62  * LED - System LED on front panel (0=off, 1=on)
63  */
64 #define AUXIO_PCIO_LED		0x01 /* System LED 		*/
65 
66 /* PCIO Power Auxio @ 0x724000
67  * -------------------------------------------------
68  * |             31:2 Unused           | CPO | SPO |
69  * -------------------------------------------------
70  * Bits 31:2 unused
71  * CPO - Courtesy Power Off (1=off)
72  * SPO - System Power Off   (1=off)
73  */
74 #define AUXIO_PCIO_CPWR_OFF	0x02 /* Courtesy Power Off	*/
75 #define AUXIO_PCIO_SPWR_OFF	0x01 /* System Power Off	*/
76 
77 #ifndef __ASSEMBLY__
78 
79 #define AUXIO_LTE_ON	1
80 #define AUXIO_LTE_OFF	0
81 
82 /* auxio_set_lte - Set Link Test Enable (TPE Link Detect)
83  *
84  * on - AUXIO_LTE_ON or AUXIO_LTE_OFF
85  */
86 void auxio_set_lte(int on);
87 
88 #define AUXIO_LED_ON	1
89 #define AUXIO_LED_OFF	0
90 
91 /* auxio_set_led - Set system front panel LED
92  *
93  * on - AUXIO_LED_ON or AUXIO_LED_OFF
94  */
95 void auxio_set_led(int on);
96 
97 #endif /* ifndef __ASSEMBLY__ */
98 
99 #endif /* !(_SPARC64_AUXIO_H) */
100