tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * AMD Geode definitions
3 * Copyright (C) 2006, Advanced Micro Devices, Inc.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of version 2 of the GNU General Public License
7 * as published by the Free Software Foundation.
8 */
9
10#ifndef _ASM_GEODE_H_
11#define _ASM_GEODE_H_
12
13#include <asm/processor.h>
14#include <linux/io.h>
15
16/* Generic southbridge functions */
17
18#define GEODE_DEV_PMS 0
19#define GEODE_DEV_ACPI 1
20#define GEODE_DEV_GPIO 2
21#define GEODE_DEV_MFGPT 3
22
23extern int geode_get_dev_base(unsigned int dev);
24
25/* Useful macros */
26#define geode_pms_base() geode_get_dev_base(GEODE_DEV_PMS)
27#define geode_acpi_base() geode_get_dev_base(GEODE_DEV_ACPI)
28#define geode_gpio_base() geode_get_dev_base(GEODE_DEV_GPIO)
29#define geode_mfgpt_base() geode_get_dev_base(GEODE_DEV_MFGPT)
30
31/* MSRS */
32
33#define GX_GLCP_SYS_RSTPLL 0x4C000014
34
35#define MSR_LBAR_SMB 0x5140000B
36#define MSR_LBAR_GPIO 0x5140000C
37#define MSR_LBAR_MFGPT 0x5140000D
38#define MSR_LBAR_ACPI 0x5140000E
39#define MSR_LBAR_PMS 0x5140000F
40
41#define MSR_DIVIL_SOFT_RESET 0x51400017
42
43#define MSR_PIC_YSEL_LOW 0x51400020
44#define MSR_PIC_YSEL_HIGH 0x51400021
45#define MSR_PIC_ZSEL_LOW 0x51400022
46#define MSR_PIC_ZSEL_HIGH 0x51400023
47
48#define MFGPT_IRQ_MSR 0x51400028
49#define MFGPT_NR_MSR 0x51400029
50
51/* Resource Sizes */
52
53#define LBAR_GPIO_SIZE 0xFF
54#define LBAR_MFGPT_SIZE 0x40
55#define LBAR_ACPI_SIZE 0x40
56#define LBAR_PMS_SIZE 0x80
57
58/* ACPI registers (PMS block) */
59
60/*
61 * PM1_EN is only valid when VSA is enabled for 16 bit reads.
62 * When VSA is not enabled, *always* read both PM1_STS and PM1_EN
63 * with a 32 bit read at offset 0x0
64 */
65
66#define PM1_STS 0x00
67#define PM1_EN 0x02
68#define PM1_CNT 0x08
69#define PM2_CNT 0x0C
70#define PM_TMR 0x10
71#define PM_GPE0_STS 0x18
72#define PM_GPE0_EN 0x1C
73
74/* PMC registers (PMS block) */
75
76#define PM_SSD 0x00
77#define PM_SCXA 0x04
78#define PM_SCYA 0x08
79#define PM_OUT_SLPCTL 0x0C
80#define PM_SCLK 0x10
81#define PM_SED 0x1
82#define PM_SCXD 0x18
83#define PM_SCYD 0x1C
84#define PM_IN_SLPCTL 0x20
85#define PM_WKD 0x30
86#define PM_WKXD 0x34
87#define PM_RD 0x38
88#define PM_WKXA 0x3C
89#define PM_FSD 0x40
90#define PM_TSD 0x44
91#define PM_PSD 0x48
92#define PM_NWKD 0x4C
93#define PM_AWKD 0x50
94#define PM_SSC 0x54
95
96/* GPIO */
97
98#define GPIO_OUTPUT_VAL 0x00
99#define GPIO_OUTPUT_ENABLE 0x04
100#define GPIO_OUTPUT_OPEN_DRAIN 0x08
101#define GPIO_OUTPUT_INVERT 0x0C
102#define GPIO_OUTPUT_AUX1 0x10
103#define GPIO_OUTPUT_AUX2 0x14
104#define GPIO_PULL_UP 0x18
105#define GPIO_PULL_DOWN 0x1C
106#define GPIO_INPUT_ENABLE 0x20
107#define GPIO_INPUT_INVERT 0x24
108#define GPIO_INPUT_FILTER 0x28
109#define GPIO_INPUT_EVENT_COUNT 0x2C
110#define GPIO_READ_BACK 0x30
111#define GPIO_INPUT_AUX1 0x34
112#define GPIO_EVENTS_ENABLE 0x38
113#define GPIO_LOCK_ENABLE 0x3C
114#define GPIO_POSITIVE_EDGE_EN 0x40
115#define GPIO_NEGATIVE_EDGE_EN 0x44
116#define GPIO_POSITIVE_EDGE_STS 0x48
117#define GPIO_NEGATIVE_EDGE_STS 0x4C
118
119#define GPIO_MAP_X 0xE0
120#define GPIO_MAP_Y 0xE4
121#define GPIO_MAP_Z 0xE8
122#define GPIO_MAP_W 0xEC
123
124static inline u32 geode_gpio(unsigned int nr)
125{
126 BUG_ON(nr > 28);
127 return 1 << nr;
128}
129
130extern void geode_gpio_set(u32, unsigned int);
131extern void geode_gpio_clear(u32, unsigned int);
132extern int geode_gpio_isset(u32, unsigned int);
133extern void geode_gpio_setup_event(unsigned int, int, int);
134extern void geode_gpio_set_irq(unsigned int, unsigned int);
135
136static inline void geode_gpio_event_irq(unsigned int gpio, int pair)
137{
138 geode_gpio_setup_event(gpio, pair, 0);
139}
140
141static inline void geode_gpio_event_pme(unsigned int gpio, int pair)
142{
143 geode_gpio_setup_event(gpio, pair, 1);
144}
145
146/* Specific geode tests */
147
148static inline int is_geode_gx(void)
149{
150 return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
151 (boot_cpu_data.x86 == 5) &&
152 (boot_cpu_data.x86_model == 5));
153}
154
155static inline int is_geode_lx(void)
156{
157 return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
158 (boot_cpu_data.x86 == 5) &&
159 (boot_cpu_data.x86_model == 10));
160}
161
162static inline int is_geode(void)
163{
164 return (is_geode_gx() || is_geode_lx());
165}
166
167/* MFGPTs */
168
169#define MFGPT_MAX_TIMERS 8
170#define MFGPT_TIMER_ANY -1
171
172#define MFGPT_DOMAIN_WORKING 1
173#define MFGPT_DOMAIN_STANDBY 2
174#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
175
176#define MFGPT_CMP1 0
177#define MFGPT_CMP2 1
178
179#define MFGPT_EVENT_IRQ 0
180#define MFGPT_EVENT_NMI 1
181#define MFGPT_EVENT_RESET 3
182
183#define MFGPT_REG_CMP1 0
184#define MFGPT_REG_CMP2 2
185#define MFGPT_REG_COUNTER 4
186#define MFGPT_REG_SETUP 6
187
188#define MFGPT_SETUP_CNTEN (1 << 15)
189#define MFGPT_SETUP_CMP2 (1 << 14)
190#define MFGPT_SETUP_CMP1 (1 << 13)
191#define MFGPT_SETUP_SETUP (1 << 12)
192#define MFGPT_SETUP_STOPEN (1 << 11)
193#define MFGPT_SETUP_EXTEN (1 << 10)
194#define MFGPT_SETUP_REVEN (1 << 5)
195#define MFGPT_SETUP_CLKSEL (1 << 4)
196
197static inline void geode_mfgpt_write(int timer, u16 reg, u16 value)
198{
199 u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
200 outw(value, base + reg + (timer * 8));
201}
202
203static inline u16 geode_mfgpt_read(int timer, u16 reg)
204{
205 u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
206 return inw(base + reg + (timer * 8));
207}
208
209extern int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable);
210extern int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable);
211extern int geode_mfgpt_alloc_timer(int timer, int domain);
212
213#define geode_mfgpt_setup_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 1)
214#define geode_mfgpt_release_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 0)
215
216#ifdef CONFIG_GEODE_MFGPT_TIMER
217extern int __init mfgpt_timer_setup(void);
218#else
219static inline int mfgpt_timer_setup(void) { return 0; }
220#endif
221
222#endif