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 MSR_LX_GLD_MSR_CONFIG 0x48002001
34 #define MSR_LX_MSR_PADSEL 0x48002011 /* NOT 0x48000011; the data
35 * sheet has the wrong value */
36 #define MSR_GLCP_SYS_RSTPLL 0x4C000014
37 #define MSR_GLCP_DOTPLL 0x4C000015
39 #define MSR_LBAR_SMB 0x5140000B
40 #define MSR_LBAR_GPIO 0x5140000C
41 #define MSR_LBAR_MFGPT 0x5140000D
42 #define MSR_LBAR_ACPI 0x5140000E
43 #define MSR_LBAR_PMS 0x5140000F
45 #define MSR_DIVIL_SOFT_RESET 0x51400017
47 #define MSR_PIC_YSEL_LOW 0x51400020
48 #define MSR_PIC_YSEL_HIGH 0x51400021
49 #define MSR_PIC_ZSEL_LOW 0x51400022
50 #define MSR_PIC_ZSEL_HIGH 0x51400023
52 #define MSR_MFGPT_IRQ 0x51400028
53 #define MSR_MFGPT_NR 0x51400029
54 #define MSR_MFGPT_SETUP 0x5140002B
56 #define MSR_LX_SPARE_MSR 0x80000011 /* DC-specific */
58 #define MSR_GX_GLD_MSR_CONFIG 0xC0002001
59 #define MSR_GX_MSR_PADSEL 0xC0002011
63 #define LBAR_GPIO_SIZE 0xFF
64 #define LBAR_MFGPT_SIZE 0x40
65 #define LBAR_ACPI_SIZE 0x40
66 #define LBAR_PMS_SIZE 0x80
68 /* ACPI registers (PMS block) */
71 * PM1_EN is only valid when VSA is enabled for 16 bit reads.
72 * When VSA is not enabled, *always* read both PM1_STS and PM1_EN
73 * with a 32 bit read at offset 0x0
81 #define PM_GPE0_STS 0x18
82 #define PM_GPE0_EN 0x1C
84 /* PMC registers (PMS block) */
89 #define PM_OUT_SLPCTL 0x0C
94 #define PM_IN_SLPCTL 0x20
106 /* VSA2 magic values */
108 #define VSA_VRC_INDEX 0xAC1C
109 #define VSA_VRC_DATA 0xAC1E
110 #define VSA_VR_UNLOCK 0xFC53 /* unlock virtual register */
111 #define VSA_VR_SIGNATURE 0x0003
112 #define VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
116 #define GPIO_OUTPUT_VAL 0x00
117 #define GPIO_OUTPUT_ENABLE 0x04
118 #define GPIO_OUTPUT_OPEN_DRAIN 0x08
119 #define GPIO_OUTPUT_INVERT 0x0C
120 #define GPIO_OUTPUT_AUX1 0x10
121 #define GPIO_OUTPUT_AUX2 0x14
122 #define GPIO_PULL_UP 0x18
123 #define GPIO_PULL_DOWN 0x1C
124 #define GPIO_INPUT_ENABLE 0x20
125 #define GPIO_INPUT_INVERT 0x24
126 #define GPIO_INPUT_FILTER 0x28
127 #define GPIO_INPUT_EVENT_COUNT 0x2C
128 #define GPIO_READ_BACK 0x30
129 #define GPIO_INPUT_AUX1 0x34
130 #define GPIO_EVENTS_ENABLE 0x38
131 #define GPIO_LOCK_ENABLE 0x3C
132 #define GPIO_POSITIVE_EDGE_EN 0x40
133 #define GPIO_NEGATIVE_EDGE_EN 0x44
134 #define GPIO_POSITIVE_EDGE_STS 0x48
135 #define GPIO_NEGATIVE_EDGE_STS 0x4C
137 #define GPIO_MAP_X 0xE0
138 #define GPIO_MAP_Y 0xE4
139 #define GPIO_MAP_Z 0xE8
140 #define GPIO_MAP_W 0xEC
142 static inline u32 geode_gpio(unsigned int nr)
148 extern void geode_gpio_set(u32, unsigned int);
149 extern void geode_gpio_clear(u32, unsigned int);
150 extern int geode_gpio_isset(u32, unsigned int);
151 extern void geode_gpio_setup_event(unsigned int, int, int);
152 extern void geode_gpio_set_irq(unsigned int, unsigned int);
154 static inline void geode_gpio_event_irq(unsigned int gpio, int pair)
156 geode_gpio_setup_event(gpio, pair, 0);
159 static inline void geode_gpio_event_pme(unsigned int gpio, int pair)
161 geode_gpio_setup_event(gpio, pair, 1);
164 /* Specific geode tests */
166 static inline int is_geode_gx(void)
168 return ((boot_cpu_data.x86_vendor == X86_VENDOR_NSC) &&
169 (boot_cpu_data.x86 == 5) &&
170 (boot_cpu_data.x86_model == 5));
173 static inline int is_geode_lx(void)
175 return ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
176 (boot_cpu_data.x86 == 5) &&
177 (boot_cpu_data.x86_model == 10));
180 static inline int is_geode(void)
182 return (is_geode_gx() || is_geode_lx());
186 * The VSA has virtual registers that we can query for a signature.
188 static inline int geode_has_vsa2(void)
190 outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
191 outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
193 return (inw(VSA_VRC_DATA) == VSA_SIG);
198 #define MFGPT_MAX_TIMERS 8
199 #define MFGPT_TIMER_ANY (-1)
201 #define MFGPT_DOMAIN_WORKING 1
202 #define MFGPT_DOMAIN_STANDBY 2
203 #define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
208 #define MFGPT_EVENT_IRQ 0
209 #define MFGPT_EVENT_NMI 1
210 #define MFGPT_EVENT_RESET 3
212 #define MFGPT_REG_CMP1 0
213 #define MFGPT_REG_CMP2 2
214 #define MFGPT_REG_COUNTER 4
215 #define MFGPT_REG_SETUP 6
217 #define MFGPT_SETUP_CNTEN (1 << 15)
218 #define MFGPT_SETUP_CMP2 (1 << 14)
219 #define MFGPT_SETUP_CMP1 (1 << 13)
220 #define MFGPT_SETUP_SETUP (1 << 12)
221 #define MFGPT_SETUP_STOPEN (1 << 11)
222 #define MFGPT_SETUP_EXTEN (1 << 10)
223 #define MFGPT_SETUP_REVEN (1 << 5)
224 #define MFGPT_SETUP_CLKSEL (1 << 4)
226 static inline void geode_mfgpt_write(int timer, u16 reg, u16 value)
228 u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
229 outw(value, base + reg + (timer * 8));
232 static inline u16 geode_mfgpt_read(int timer, u16 reg)
234 u32 base = geode_get_dev_base(GEODE_DEV_MFGPT);
235 return inw(base + reg + (timer * 8));
238 extern int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable);
239 extern int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable);
240 extern int geode_mfgpt_alloc_timer(int timer, int domain);
242 #define geode_mfgpt_setup_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 1)
243 #define geode_mfgpt_release_irq(t, c, i) geode_mfgpt_set_irq((t), (c), (i), 0)
245 #ifdef CONFIG_GEODE_MFGPT_TIMER
246 extern int __init mfgpt_timer_setup(void);
248 static inline int mfgpt_timer_setup(void) { return 0; }