2 * AMD Geode definitions
3 * Copyright (C) 2006, Advanced Micro Devices, Inc.
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.
13 #include <asm/processor.h>
16 /* Generic southbridge functions */
18 #define GEODE_DEV_PMS 0
19 #define GEODE_DEV_ACPI 1
20 #define GEODE_DEV_GPIO 2
21 #define GEODE_DEV_MFGPT 3
23 extern int geode_get_dev_base(unsigned int dev
);
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)
33 #define GX_GLCP_SYS_RSTPLL 0x4C000014
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
41 #define MSR_PIC_YSEL_LOW 0x51400020
42 #define MSR_PIC_YSEL_HIGH 0x51400021
43 #define MSR_PIC_ZSEL_LOW 0x51400022
44 #define MSR_PIC_ZSEL_HIGH 0x51400023
46 #define MFGPT_IRQ_MSR 0x51400028
47 #define MFGPT_NR_MSR 0x51400029
51 #define LBAR_GPIO_SIZE 0xFF
52 #define LBAR_MFGPT_SIZE 0x40
53 #define LBAR_ACPI_SIZE 0x40
54 #define LBAR_PMS_SIZE 0x80
56 /* ACPI registers (PMS block) */
59 * PM1_EN is only valid when VSA is enabled for 16 bit reads.
60 * When VSA is not enabled, *always* read both PM1_STS and PM1_EN
61 * with a 32 bit read at offset 0x0
69 #define PM_GPE0_STS 0x18
70 #define PM_GPE0_EN 0x1C
72 /* PMC registers (PMS block) */
77 #define PM_OUT_SLPCTL 0x0C
82 #define PM_IN_SLPCTL 0x20
96 #define GPIO_OUTPUT_VAL 0x00
97 #define GPIO_OUTPUT_ENABLE 0x04
98 #define GPIO_OUTPUT_OPEN_DRAIN 0x08
99 #define GPIO_OUTPUT_INVERT 0x0C
100 #define GPIO_OUTPUT_AUX1 0x10
101 #define GPIO_OUTPUT_AUX2 0x14
102 #define GPIO_PULL_UP 0x18
103 #define GPIO_PULL_DOWN 0x1C
104 #define GPIO_INPUT_ENABLE 0x20
105 #define GPIO_INPUT_INVERT 0x24
106 #define GPIO_INPUT_FILTER 0x28
107 #define GPIO_INPUT_EVENT_COUNT 0x2C
108 #define GPIO_READ_BACK 0x30
109 #define GPIO_INPUT_AUX1 0x34
110 #define GPIO_EVENTS_ENABLE 0x38
111 #define GPIO_LOCK_ENABLE 0x3C
112 #define GPIO_POSITIVE_EDGE_EN 0x40
113 #define GPIO_NEGATIVE_EDGE_EN 0x44
114 #define GPIO_POSITIVE_EDGE_STS 0x48
115 #define GPIO_NEGATIVE_EDGE_STS 0x4C
117 #define GPIO_MAP_X 0xE0
118 #define GPIO_MAP_Y 0xE4
119 #define GPIO_MAP_Z 0xE8
120 #define GPIO_MAP_W 0xEC
122 extern void geode_gpio_set(unsigned int, unsigned int);
123 extern void geode_gpio_clear(unsigned int, unsigned int);
124 extern int geode_gpio_isset(unsigned int, unsigned int);
125 extern void geode_gpio_setup_event(unsigned int, int, int);
126 extern void geode_gpio_set_irq(unsigned int, unsigned int);
128 static inline void geode_gpio_event_irq(unsigned int gpio
, int pair
)
130 geode_gpio_setup_event(gpio
, pair
, 0);
133 static inline void geode_gpio_event_pme(unsigned int gpio
, int pair
)
135 geode_gpio_setup_event(gpio
, pair
, 1);
138 /* Specific geode tests */
140 static inline int is_geode_gx(void)
142 return ((boot_cpu_data
.x86_vendor
== X86_VENDOR_NSC
) &&
143 (boot_cpu_data
.x86
== 5) &&
144 (boot_cpu_data
.x86_model
== 5));
147 static inline int is_geode_lx(void)
149 return ((boot_cpu_data
.x86_vendor
== X86_VENDOR_AMD
) &&
150 (boot_cpu_data
.x86
== 5) &&
151 (boot_cpu_data
.x86_model
== 10));
154 static inline int is_geode(void)
156 return (is_geode_gx() || is_geode_lx());
161 #define MFGPT_MAX_TIMERS 8
162 #define MFGPT_TIMER_ANY -1
164 #define MFGPT_DOMAIN_WORKING 1
165 #define MFGPT_DOMAIN_STANDBY 2
166 #define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
171 #define MFGPT_EVENT_IRQ 0
172 #define MFGPT_EVENT_NMI 1
173 #define MFGPT_EVENT_RESET 3
175 #define MFGPT_REG_CMP1 0
176 #define MFGPT_REG_CMP2 2
177 #define MFGPT_REG_COUNTER 4
178 #define MFGPT_REG_SETUP 6
180 #define MFGPT_SETUP_CNTEN (1 << 15)
181 #define MFGPT_SETUP_CMP2 (1 << 14)
182 #define MFGPT_SETUP_CMP1 (1 << 13)
183 #define MFGPT_SETUP_SETUP (1 << 12)
184 #define MFGPT_SETUP_STOPEN (1 << 11)
185 #define MFGPT_SETUP_EXTEN (1 << 10)
186 #define MFGPT_SETUP_REVEN (1 << 5)
187 #define MFGPT_SETUP_CLKSEL (1 << 4)
189 static inline void geode_mfgpt_write(int timer
, u16 reg
, u16 value
)
191 u32 base
= geode_get_dev_base(GEODE_DEV_MFGPT
);
192 outw(value
, base
+ reg
+ (timer
* 8));
195 static inline u16
geode_mfgpt_read(int timer
, u16 reg
)
197 u32 base
= geode_get_dev_base(GEODE_DEV_MFGPT
);
198 return inw(base
+ reg
+ (timer
* 8));
201 extern int __init
geode_mfgpt_detect(void);
202 extern int geode_mfgpt_toggle_event(int timer
, int cmp
, int event
, int enable
);
203 extern int geode_mfgpt_set_irq(int timer
, int cmp
, int irq
, int enable
);
204 extern int geode_mfgpt_alloc_timer(int timer
, int domain
, struct module
*owner
);
206 #define geode_mfgpt_setup_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 1)
207 #define geode_mfgpt_release_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 0)