xref: /illumos-gate/usr/src/uts/sun4u/excalibur/sys/xcalppm_reg.h (revision 4de2612967d06c4fdbf524a62556a1e8118a006f)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1999-2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 /*
28  * Platform Power Management
29  *
30  * Register and bit definitions of the power-related parts
31  */
32 
33 #ifndef	_SYS_XCALPPM_REG_H
34 #define	_SYS_XCALPPM_REG_H
35 
36 #pragma ident	"%Z%%M%	%I%	%E% SMI"
37 
38 #ifdef	__cplusplus
39 extern "C" {
40 #endif
41 
42 /*
43  * Registers accessed by the ppm driver.  These registers actually come
44  * from different ASICs on the system and are collected for us
45  * by the prom into a single device node.  These registers are:
46  *
47  *	BBC E* Control Register (other registers like E* Assert Change Time
48  *	    or E* PLL Settle Time are offseted from this address)
49  *	Mode Auxio Register
50  *	SuperI/O Configuration Register
51  *	SuperI/O GPIO Registers
52  */
53 struct xcppmreg {
54 	volatile uint16_t *bbc_estar_ctrl;	/* set cpu clock rate */
55 	volatile uint32_t *bbc_assert_change;	/* set t1 cpu trans time */
56 	volatile uint32_t *bbc_pll_settle;	/* set t4 cpu trans time */
57 	volatile uint32_t *rio_mode_auxio;	/* transition cpu clock */
58 	volatile uint8_t *gpio_bank_sel_index;	/* index GPIO bank sel. */
59 	volatile uint8_t *gpio_bank_sel_data;	/* data GPIO bank select */
60 	volatile uint8_t *gpio_port1_data;	/* set LED */
61 	volatile uint8_t *gpio_port2_data;	/* set DC-DC, 1394, FET */
62 };
63 
64 struct xcppmhndl {
65 	ddi_acc_handle_t	bbc_estar_ctrl;
66 	ddi_acc_handle_t	rio_mode_auxio;
67 	ddi_acc_handle_t	gpio_bank_select;
68 	ddi_acc_handle_t	gpio_data_ports;
69 };
70 
71 /*
72  * Register offsets
73  */
74 #define	BBC_ESTAR_CTRL_OFFSET		0x0
75 #define	BBC_ASSERT_CHANGE_OFFSET	0x2
76 #define	BBC_PLL_SETTLE_OFFSET		0xa
77 
78 #define	GPIO_BANK_SEL_INDEX_OFFSET	0x0
79 #define	GPIO_BANK_SEL_DATA_OFFSET	0x1
80 
81 #define	GPIO_PORT1_DATA_OFFSET		0x0
82 #define	GPIO_PORT2_DATA_OFFSET		0x4
83 
84 /*
85  * Definitions for the RIO Mode Auxio register
86  */
87 #define	RIO_BBC_ESTAR_MODE		0x800
88 
89 /*
90  * Index for SuperIO Configuration 2 register
91  */
92 #define	SIO_CONFIG2_INDEX		0x22
93 
94 /*
95  * GPIO Data Port 1 bit assignments
96  */
97 #define	LED	0x02		/* Controls front panel LED */
98 
99 /*
100  * GPIO Data Port 2 bit assignments
101  */
102 #define	CPEN	0x02		/* Controls 1394 cable power [1 = on] */
103 #define	HIGHPWR	0x08		/* Enter/Leave low pwr mode [1 = high pwr] */
104 #define	DRVON	0x10		/* Controls pwr to internal drives [1 = on] */
105 
106 /*
107  * BBC timing registers are set according to "bbc_delay" variable
108  * and adjusted based on current clock speed.
109  */
110 extern int bbc_delay;				/* microsec */
111 #define	BBC_DELAY	(bbc_delay * 1000000)	/* nanosec */
112 #define	EXCAL_CLOCK	10			/* 10 nsec or 100 MHz */
113 #define	BBC_CLOCK	(2 * EXCAL_CLOCK)	/* BBC clock is half speed */
114 
115 #define	XCPPM_BBC_DELAY(index)				\
116 	(index == 0) ? (BBC_DELAY/(BBC_CLOCK * 32)) :	\
117 	((index == 1) ? (BBC_DELAY/(BBC_CLOCK * 2)) :	\
118 	BBC_DELAY/BBC_CLOCK)
119 
120 /*
121  * BBC E* Control Reg bit masks
122  */
123 #define	BBC_ESTAR_SLOW		0x20		/* 1/32 speed */
124 #define	BBC_ESTAR_MEDIUM	0x2		/* 1/2  speed */
125 #define	BBC_ESTAR_FAST		0x1		/* full speed */
126 
127 /*
128  * register access IO
129  */
130 #define	XCPPM_CLRBIT		0x0
131 #define	XCPPM_SETBIT		0x1
132 #define	XCPPM_GETBIT		0x2
133 
134 #ifdef	__cplusplus
135 }
136 #endif
137 
138 #endif	/* _SYS_XCALPPM_REG_H */
139