Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1/*
2 * AMD CS5535/CS5536 definitions
3 * Copyright (C) 2006 Advanced Micro Devices, Inc.
4 * Copyright (C) 2009 Andres Salomon <dilinger@collabora.co.uk>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of version 2 of the GNU General Public License
8 * as published by the Free Software Foundation.
9 */
10
11#ifndef _CS5535_H
12#define _CS5535_H
13
14/* MSRs */
15#define MSR_GLIU_P2D_RO0 0x10000029
16
17#define MSR_LX_GLD_MSR_CONFIG 0x48002001
18#define MSR_LX_MSR_PADSEL 0x48002011 /* NOT 0x48000011; the data
19 * sheet has the wrong value */
20#define MSR_GLCP_SYS_RSTPLL 0x4C000014
21#define MSR_GLCP_DOTPLL 0x4C000015
22
23#define MSR_LBAR_SMB 0x5140000B
24#define MSR_LBAR_GPIO 0x5140000C
25#define MSR_LBAR_MFGPT 0x5140000D
26#define MSR_LBAR_ACPI 0x5140000E
27#define MSR_LBAR_PMS 0x5140000F
28
29#define MSR_DIVIL_SOFT_RESET 0x51400017
30
31#define MSR_PIC_YSEL_LOW 0x51400020
32#define MSR_PIC_YSEL_HIGH 0x51400021
33#define MSR_PIC_ZSEL_LOW 0x51400022
34#define MSR_PIC_ZSEL_HIGH 0x51400023
35#define MSR_PIC_IRQM_LPC 0x51400025
36
37#define MSR_MFGPT_IRQ 0x51400028
38#define MSR_MFGPT_NR 0x51400029
39#define MSR_MFGPT_SETUP 0x5140002B
40
41#define MSR_LX_SPARE_MSR 0x80000011 /* DC-specific */
42
43#define MSR_GX_GLD_MSR_CONFIG 0xC0002001
44#define MSR_GX_MSR_PADSEL 0xC0002011
45
46/* resource sizes */
47#define LBAR_GPIO_SIZE 0xFF
48#define LBAR_MFGPT_SIZE 0x40
49#define LBAR_ACPI_SIZE 0x40
50#define LBAR_PMS_SIZE 0x80
51
52/* VSA2 magic values */
53#define VSA_VRC_INDEX 0xAC1C
54#define VSA_VRC_DATA 0xAC1E
55#define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */
56#define VSA_VR_SIGNATURE 0x0003
57#define VSA_VR_MEM_SIZE 0x0200
58#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
59#define GSW_VSA_SIG 0x534d /* General Software signature */
60
61#include <linux/io.h>
62
63static inline int cs5535_has_vsa2(void)
64{
65 static int has_vsa2 = -1;
66
67 if (has_vsa2 == -1) {
68 uint16_t val;
69
70 /*
71 * The VSA has virtual registers that we can query for a
72 * signature.
73 */
74 outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
75 outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
76
77 val = inw(VSA_VRC_DATA);
78 has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
79 }
80
81 return has_vsa2;
82}
83
84/* GPIOs */
85#define GPIO_OUTPUT_VAL 0x00
86#define GPIO_OUTPUT_ENABLE 0x04
87#define GPIO_OUTPUT_OPEN_DRAIN 0x08
88#define GPIO_OUTPUT_INVERT 0x0C
89#define GPIO_OUTPUT_AUX1 0x10
90#define GPIO_OUTPUT_AUX2 0x14
91#define GPIO_PULL_UP 0x18
92#define GPIO_PULL_DOWN 0x1C
93#define GPIO_INPUT_ENABLE 0x20
94#define GPIO_INPUT_INVERT 0x24
95#define GPIO_INPUT_FILTER 0x28
96#define GPIO_INPUT_EVENT_COUNT 0x2C
97#define GPIO_READ_BACK 0x30
98#define GPIO_INPUT_AUX1 0x34
99#define GPIO_EVENTS_ENABLE 0x38
100#define GPIO_LOCK_ENABLE 0x3C
101#define GPIO_POSITIVE_EDGE_EN 0x40
102#define GPIO_NEGATIVE_EDGE_EN 0x44
103#define GPIO_POSITIVE_EDGE_STS 0x48
104#define GPIO_NEGATIVE_EDGE_STS 0x4C
105
106#define GPIO_MAP_X 0xE0
107#define GPIO_MAP_Y 0xE4
108#define GPIO_MAP_Z 0xE8
109#define GPIO_MAP_W 0xEC
110
111void cs5535_gpio_set(unsigned offset, unsigned int reg);
112void cs5535_gpio_clear(unsigned offset, unsigned int reg);
113int cs5535_gpio_isset(unsigned offset, unsigned int reg);
114
115/* MFGPTs */
116
117#define MFGPT_MAX_TIMERS 8
118#define MFGPT_TIMER_ANY (-1)
119
120#define MFGPT_DOMAIN_WORKING 1
121#define MFGPT_DOMAIN_STANDBY 2
122#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
123
124#define MFGPT_CMP1 0
125#define MFGPT_CMP2 1
126
127#define MFGPT_EVENT_IRQ 0
128#define MFGPT_EVENT_NMI 1
129#define MFGPT_EVENT_RESET 3
130
131#define MFGPT_REG_CMP1 0
132#define MFGPT_REG_CMP2 2
133#define MFGPT_REG_COUNTER 4
134#define MFGPT_REG_SETUP 6
135
136#define MFGPT_SETUP_CNTEN (1 << 15)
137#define MFGPT_SETUP_CMP2 (1 << 14)
138#define MFGPT_SETUP_CMP1 (1 << 13)
139#define MFGPT_SETUP_SETUP (1 << 12)
140#define MFGPT_SETUP_STOPEN (1 << 11)
141#define MFGPT_SETUP_EXTEN (1 << 10)
142#define MFGPT_SETUP_REVEN (1 << 5)
143#define MFGPT_SETUP_CLKSEL (1 << 4)
144
145struct cs5535_mfgpt_timer;
146
147extern uint16_t cs5535_mfgpt_read(struct cs5535_mfgpt_timer *timer,
148 uint16_t reg);
149extern void cs5535_mfgpt_write(struct cs5535_mfgpt_timer *timer, uint16_t reg,
150 uint16_t value);
151
152extern int cs5535_mfgpt_toggle_event(struct cs5535_mfgpt_timer *timer, int cmp,
153 int event, int enable);
154extern int cs5535_mfgpt_set_irq(struct cs5535_mfgpt_timer *timer, int cmp,
155 int *irq, int enable);
156extern struct cs5535_mfgpt_timer *cs5535_mfgpt_alloc_timer(int timer,
157 int domain);
158extern void cs5535_mfgpt_free_timer(struct cs5535_mfgpt_timer *timer);
159
160static inline int cs5535_mfgpt_setup_irq(struct cs5535_mfgpt_timer *timer,
161 int cmp, int *irq)
162{
163 return cs5535_mfgpt_set_irq(timer, cmp, irq, 1);
164}
165
166static inline int cs5535_mfgpt_release_irq(struct cs5535_mfgpt_timer *timer,
167 int cmp, int *irq)
168{
169 return cs5535_mfgpt_set_irq(timer, cmp, irq, 0);
170}
171
172#endif