[linux-2.6-block.git] / include / linux / cs5535.h

/*
 * AMD CS5535/CS5536 definitions
 * Copyright (C) 2006  Advanced Micro Devices, Inc.
 * Copyright (C) 2009  Andres Salomon <dilinger@collabora.co.uk>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public License
 * as published by the Free Software Foundation.
 */

#ifndef _CS5535_H
#define _CS5535_H

#include <asm/msr.h>

/* MSRs */
#define MSR_GLIU_P2D_RO0	0x10000029

#define MSR_LX_GLD_MSR_CONFIG	0x48002001
#define MSR_LX_MSR_PADSEL	0x48002011	/* NOT 0x48000011; the data
						 * sheet has the wrong value */
#define MSR_GLCP_SYS_RSTPLL	0x4C000014
#define MSR_GLCP_DOTPLL		0x4C000015

#define MSR_LBAR_SMB		0x5140000B
#define MSR_LBAR_GPIO		0x5140000C
#define MSR_LBAR_MFGPT		0x5140000D
#define MSR_LBAR_ACPI		0x5140000E
#define MSR_LBAR_PMS		0x5140000F

#define MSR_DIVIL_SOFT_RESET	0x51400017

#define MSR_PIC_YSEL_LOW	0x51400020
#define MSR_PIC_YSEL_HIGH	0x51400021
#define MSR_PIC_ZSEL_LOW	0x51400022
#define MSR_PIC_ZSEL_HIGH	0x51400023
#define MSR_PIC_IRQM_LPC	0x51400025

#define MSR_MFGPT_IRQ		0x51400028
#define MSR_MFGPT_NR		0x51400029
#define MSR_MFGPT_SETUP		0x5140002B

#define MSR_LX_SPARE_MSR	0x80000011	/* DC-specific */

#define MSR_GX_GLD_MSR_CONFIG	0xC0002001
#define MSR_GX_MSR_PADSEL	0xC0002011

static inline int cs5535_pic_unreqz_select_high(unsigned int group,
						unsigned int irq)
{
	uint32_t lo, hi;

	rdmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
	lo &= ~(0xF << (group * 4));
	lo |= (irq & 0xF) << (group * 4);
	wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
	return 0;
}

/* PIC registers */
#define CS5536_PIC_INT_SEL1	0x4d0
#define CS5536_PIC_INT_SEL2	0x4d1

/* resource sizes */
#define LBAR_GPIO_SIZE		0xFF
#define LBAR_MFGPT_SIZE		0x40
#define LBAR_ACPI_SIZE		0x40
#define LBAR_PMS_SIZE		0x80

/*
 * PMC registers (PMS block)
 * It is only safe to access these registers as dword accesses.
 * See CS5536 Specification Update erratas 17 & 18
 */
#define CS5536_PM_SCLK		0x10
#define CS5536_PM_IN_SLPCTL	0x20
#define CS5536_PM_WKXD		0x34
#define CS5536_PM_WKD		0x30
#define CS5536_PM_SSC		0x54

/*
 * PM registers (ACPI block)
 * It is only safe to access these registers as dword accesses.
 * See CS5536 Specification Update erratas 17 & 18
 */
#define CS5536_PM1_STS		0x00
#define CS5536_PM1_EN		0x02
#define CS5536_PM1_CNT		0x08
#define CS5536_PM_GPE0_STS	0x18
#define CS5536_PM_GPE0_EN	0x1c

/* CS5536_PM1_STS bits */
#define CS5536_WAK_FLAG		(1 << 15)
#define CS5536_PWRBTN_FLAG	(1 << 8)

/* CS5536_PM1_EN bits */
#define CS5536_PM_PWRBTN	(1 << 8)

/* CS5536_PM_GPE0_STS bits */
#define CS5536_GPIOM7_PME_FLAG	(1 << 31)
#define CS5536_GPIOM6_PME_FLAG	(1 << 30)

/* CS5536_PM_GPE0_EN bits */
#define CS5536_GPIOM7_PME_EN	(1 << 31)
#define CS5536_GPIOM6_PME_EN	(1 << 30)

/* VSA2 magic values */
#define VSA_VRC_INDEX		0xAC1C
#define VSA_VRC_DATA		0xAC1E
#define VSA_VR_UNLOCK		0xFC53  /* unlock virtual register */
#define VSA_VR_SIGNATURE	0x0003
#define VSA_VR_MEM_SIZE		0x0200
#define AMD_VSA_SIG		0x4132  /* signature is ascii 'VSA2' */
#define GSW_VSA_SIG		0x534d  /* General Software signature */

#include <linux/io.h>

static inline int cs5535_has_vsa2(void)
{
	static int has_vsa2 = -1;

	if (has_vsa2 == -1) {
		uint16_t val;

		/*
		 * The VSA has virtual registers that we can query for a
		 * signature.
		 */
		outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
		outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);

		val = inw(VSA_VRC_DATA);
		has_vsa2 = (val == AMD_VSA_SIG || val == GSW_VSA_SIG);
	}

	return has_vsa2;
}

/* GPIOs */
#define GPIO_OUTPUT_VAL		0x00
#define GPIO_OUTPUT_ENABLE	0x04
#define GPIO_OUTPUT_OPEN_DRAIN	0x08
#define GPIO_OUTPUT_INVERT	0x0C
#define GPIO_OUTPUT_AUX1	0x10
#define GPIO_OUTPUT_AUX2	0x14
#define GPIO_PULL_UP		0x18
#define GPIO_PULL_DOWN		0x1C
#define GPIO_INPUT_ENABLE	0x20
#define GPIO_INPUT_INVERT	0x24
#define GPIO_INPUT_FILTER	0x28
#define GPIO_INPUT_EVENT_COUNT	0x2C
#define GPIO_READ_BACK		0x30
#define GPIO_INPUT_AUX1		0x34
#define GPIO_EVENTS_ENABLE	0x38
#define GPIO_LOCK_ENABLE	0x3C
#define GPIO_POSITIVE_EDGE_EN	0x40
#define GPIO_NEGATIVE_EDGE_EN	0x44
#define GPIO_POSITIVE_EDGE_STS	0x48
#define GPIO_NEGATIVE_EDGE_STS	0x4C

#define GPIO_FLTR7_AMOUNT	0xD8

#define GPIO_MAP_X		0xE0
#define GPIO_MAP_Y		0xE4
#define GPIO_MAP_Z		0xE8
#define GPIO_MAP_W		0xEC

#define GPIO_FE7_SEL		0xF7

void cs5535_gpio_set(unsigned offset, unsigned int reg);
void cs5535_gpio_clear(unsigned offset, unsigned int reg);
int cs5535_gpio_isset(unsigned offset, unsigned int reg);
int cs5535_gpio_set_irq(unsigned group, unsigned irq);
void cs5535_gpio_setup_event(unsigned offset, int pair, int pme);

/* MFGPTs */

#define MFGPT_MAX_TIMERS	8
#define MFGPT_TIMER_ANY		(-1)

#define MFGPT_DOMAIN_WORKING	1
#define MFGPT_DOMAIN_STANDBY	2
#define MFGPT_DOMAIN_ANY	(MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)

#define MFGPT_CMP1		0
#define MFGPT_CMP2		1

#define MFGPT_EVENT_IRQ		0
#define MFGPT_EVENT_NMI		1
#define MFGPT_EVENT_RESET	3

#define MFGPT_REG_CMP1		0
#define MFGPT_REG_CMP2		2
#define MFGPT_REG_COUNTER	4
#define MFGPT_REG_SETUP		6

#define MFGPT_SETUP_CNTEN	(1 << 15)
#define MFGPT_SETUP_CMP2	(1 << 14)
#define MFGPT_SETUP_CMP1	(1 << 13)
#define MFGPT_SETUP_SETUP	(1 << 12)
#define MFGPT_SETUP_STOPEN	(1 << 11)
#define MFGPT_SETUP_EXTEN	(1 << 10)
#define MFGPT_SETUP_REVEN	(1 << 5)
#define MFGPT_SETUP_CLKSEL	(1 << 4)

struct cs5535_mfgpt_timer;

extern uint16_t cs5535_mfgpt_read(struct cs5535_mfgpt_timer *timer,
		uint16_t reg);
extern void cs5535_mfgpt_write(struct cs5535_mfgpt_timer *timer, uint16_t reg,
		uint16_t value);

extern int cs5535_mfgpt_toggle_event(struct cs5535_mfgpt_timer *timer, int cmp,
		int event, int enable);
extern int cs5535_mfgpt_set_irq(struct cs5535_mfgpt_timer *timer, int cmp,
		int *irq, int enable);
extern struct cs5535_mfgpt_timer *cs5535_mfgpt_alloc_timer(int timer,
		int domain);
extern void cs5535_mfgpt_free_timer(struct cs5535_mfgpt_timer *timer);

static inline int cs5535_mfgpt_setup_irq(struct cs5535_mfgpt_timer *timer,
		int cmp, int *irq)
{
	return cs5535_mfgpt_set_irq(timer, cmp, irq, 1);
}

static inline int cs5535_mfgpt_release_irq(struct cs5535_mfgpt_timer *timer,
		int cmp, int *irq)
{
	return cs5535_mfgpt_set_irq(timer, cmp, irq, 0);
}

#endif
Commit	Line	Data
5f0a96b0 AS	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
7bc74b3d DD	14	#include <asm/msr.h>
7bc74b3d DD	15
5f0a96b0	16	/* MSRs */
f3a57a60 AS	17	#define MSR_GLIU_P2D_RO0 0x10000029
	18
	19	#define MSR_LX_GLD_MSR_CONFIG 0x48002001
	20	#define MSR_LX_MSR_PADSEL 0x48002011 /* NOT 0x48000011; the data
	21	* sheet has the wrong value */
	22	#define MSR_GLCP_SYS_RSTPLL 0x4C000014
	23	#define MSR_GLCP_DOTPLL 0x4C000015
	24
5f0a96b0 AS	25	#define MSR_LBAR_SMB 0x5140000B
	26	#define MSR_LBAR_GPIO 0x5140000C
	27	#define MSR_LBAR_MFGPT 0x5140000D
	28	#define MSR_LBAR_ACPI 0x5140000E
	29	#define MSR_LBAR_PMS 0x5140000F
	30
2e8c1243 AS	31	#define MSR_DIVIL_SOFT_RESET 0x51400017
2e8c1243 AS	32
82dca611 AS	33	#define MSR_PIC_YSEL_LOW 0x51400020
	34	#define MSR_PIC_YSEL_HIGH 0x51400021
	35	#define MSR_PIC_ZSEL_LOW 0x51400022
	36	#define MSR_PIC_ZSEL_HIGH 0x51400023
	37	#define MSR_PIC_IRQM_LPC 0x51400025
	38
	39	#define MSR_MFGPT_IRQ 0x51400028
	40	#define MSR_MFGPT_NR 0x51400029
	41	#define MSR_MFGPT_SETUP 0x5140002B
	42
f3a57a60 AS	43	#define MSR_LX_SPARE_MSR 0x80000011 /* DC-specific */
	44
	45	#define MSR_GX_GLD_MSR_CONFIG 0xC0002001
	46	#define MSR_GX_MSR_PADSEL 0xC0002011
	47
7bc74b3d DD	48	static inline int cs5535_pic_unreqz_select_high(unsigned int group,
	49	unsigned int irq)
	50	{
	51	uint32_t lo, hi;
	52
	53	rdmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
	54	lo &= ~(0xF << (group * 4));
	55	lo \|= (irq & 0xF) << (group * 4);
	56	wrmsr(MSR_PIC_ZSEL_HIGH, lo, hi);
	57	return 0;
	58	}
	59
7feda8e9 DD	60	/* PIC registers */
	61	#define CS5536_PIC_INT_SEL1 0x4d0
	62	#define CS5536_PIC_INT_SEL2 0x4d1
	63
5f0a96b0 AS	64	/* resource sizes */
	65	#define LBAR_GPIO_SIZE 0xFF
	66	#define LBAR_MFGPT_SIZE 0x40
	67	#define LBAR_ACPI_SIZE 0x40
	68	#define LBAR_PMS_SIZE 0x80
	69
7a0d4fcf DD	70	/*
	71	* PMC registers (PMS block)
	72	* It is only safe to access these registers as dword accesses.
	73	* See CS5536 Specification Update erratas 17 & 18
	74	*/
	75	#define CS5536_PM_SCLK 0x10
	76	#define CS5536_PM_IN_SLPCTL 0x20
	77	#define CS5536_PM_WKXD 0x34
	78	#define CS5536_PM_WKD 0x30
	79	#define CS5536_PM_SSC 0x54
	80
	81	/*
	82	* PM registers (ACPI block)
	83	* It is only safe to access these registers as dword accesses.
	84	* See CS5536 Specification Update erratas 17 & 18
	85	*/
	86	#define CS5536_PM1_STS 0x00
	87	#define CS5536_PM1_EN 0x02
	88	#define CS5536_PM1_CNT 0x08
	89	#define CS5536_PM_GPE0_STS 0x18
7bc74b3d	90	#define CS5536_PM_GPE0_EN 0x1c
7a0d4fcf	91
7feda8e9 DD	92	/* CS5536_PM1_STS bits */
	93	#define CS5536_WAK_FLAG (1 << 15)
	94	#define CS5536_PWRBTN_FLAG (1 << 8)
	95
97c4cb71 DD	96	/* CS5536_PM1_EN bits */
	97	#define CS5536_PM_PWRBTN (1 << 8)
	98
7bc74b3d DD	99	/* CS5536_PM_GPE0_STS bits */
	100	#define CS5536_GPIOM7_PME_FLAG (1 << 31)
	101	#define CS5536_GPIOM6_PME_FLAG (1 << 30)
	102
	103	/* CS5536_PM_GPE0_EN bits */
	104	#define CS5536_GPIOM7_PME_EN (1 << 31)
2cf2baea	105	#define CS5536_GPIOM6_PME_EN (1 << 30)
7bc74b3d	106
f060f270 AS	107	/* 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_VR_MEM_SIZE 0x0200
	113	#define AMD_VSA_SIG 0x4132 /* signature is ascii 'VSA2' */
	114	#define GSW_VSA_SIG 0x534d /* General Software signature */
	115
	116	#include <linux/io.h>
	117
	118	static inline int cs5535_has_vsa2(void)
	119	{
	120	static int has_vsa2 = -1;
	121
	122	if (has_vsa2 == -1) {
	123	uint16_t val;
	124
	125	/*
	126	* The VSA has virtual registers that we can query for a
	127	* signature.
	128	*/
	129	outw(VSA_VR_UNLOCK, VSA_VRC_INDEX);
	130	outw(VSA_VR_SIGNATURE, VSA_VRC_INDEX);
	131
	132	val = inw(VSA_VRC_DATA);
	133	has_vsa2 = (val == AMD_VSA_SIG \|\| val == GSW_VSA_SIG);
	134	}
	135
	136	return has_vsa2;
	137	}
	138
5f0a96b0 AS	139	/* GPIOs */
	140	#define GPIO_OUTPUT_VAL 0x00
	141	#define GPIO_OUTPUT_ENABLE 0x04
	142	#define GPIO_OUTPUT_OPEN_DRAIN 0x08
	143	#define GPIO_OUTPUT_INVERT 0x0C
	144	#define GPIO_OUTPUT_AUX1 0x10
	145	#define GPIO_OUTPUT_AUX2 0x14
	146	#define GPIO_PULL_UP 0x18
	147	#define GPIO_PULL_DOWN 0x1C
	148	#define GPIO_INPUT_ENABLE 0x20
	149	#define GPIO_INPUT_INVERT 0x24
	150	#define GPIO_INPUT_FILTER 0x28
	151	#define GPIO_INPUT_EVENT_COUNT 0x2C
	152	#define GPIO_READ_BACK 0x30
	153	#define GPIO_INPUT_AUX1 0x34
	154	#define GPIO_EVENTS_ENABLE 0x38
	155	#define GPIO_LOCK_ENABLE 0x3C
	156	#define GPIO_POSITIVE_EDGE_EN 0x40
	157	#define GPIO_NEGATIVE_EDGE_EN 0x44
	158	#define GPIO_POSITIVE_EDGE_STS 0x48
	159	#define GPIO_NEGATIVE_EDGE_STS 0x4C
	160
7637c925 AS	161	#define GPIO_FLTR7_AMOUNT 0xD8
7637c925 AS	162
5f0a96b0 AS	163	#define GPIO_MAP_X 0xE0
	164	#define GPIO_MAP_Y 0xE4
	165	#define GPIO_MAP_Z 0xE8
	166	#define GPIO_MAP_W 0xEC
	167
7637c925 AS	168	#define GPIO_FE7_SEL 0xF7
7637c925 AS	169
5f0a96b0 AS	170	void cs5535_gpio_set(unsigned offset, unsigned int reg);
	171	void cs5535_gpio_clear(unsigned offset, unsigned int reg);
	172	int cs5535_gpio_isset(unsigned offset, unsigned int reg);
1b912c1b AS	173	int cs5535_gpio_set_irq(unsigned group, unsigned irq);
1b912c1b AS	174	void cs5535_gpio_setup_event(unsigned offset, int pair, int pme);
5f0a96b0	175
82dca611 AS	176	/* MFGPTs */
	177
	178	#define MFGPT_MAX_TIMERS 8
	179	#define MFGPT_TIMER_ANY (-1)
	180
	181	#define MFGPT_DOMAIN_WORKING 1
	182	#define MFGPT_DOMAIN_STANDBY 2
	183	#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING \| MFGPT_DOMAIN_STANDBY)
	184
	185	#define MFGPT_CMP1 0
	186	#define MFGPT_CMP2 1
	187
	188	#define MFGPT_EVENT_IRQ 0
	189	#define MFGPT_EVENT_NMI 1
	190	#define MFGPT_EVENT_RESET 3
	191
	192	#define MFGPT_REG_CMP1 0
	193	#define MFGPT_REG_CMP2 2
	194	#define MFGPT_REG_COUNTER 4
	195	#define MFGPT_REG_SETUP 6
	196
	197	#define MFGPT_SETUP_CNTEN (1 << 15)
	198	#define MFGPT_SETUP_CMP2 (1 << 14)
	199	#define MFGPT_SETUP_CMP1 (1 << 13)
	200	#define MFGPT_SETUP_SETUP (1 << 12)
	201	#define MFGPT_SETUP_STOPEN (1 << 11)
	202	#define MFGPT_SETUP_EXTEN (1 << 10)
	203	#define MFGPT_SETUP_REVEN (1 << 5)
	204	#define MFGPT_SETUP_CLKSEL (1 << 4)
	205
	206	struct cs5535_mfgpt_timer;
	207
	208	extern uint16_t cs5535_mfgpt_read(struct cs5535_mfgpt_timer *timer,
	209	uint16_t reg);
	210	extern void cs5535_mfgpt_write(struct cs5535_mfgpt_timer *timer, uint16_t reg,
	211	uint16_t value);
	212
	213	extern int cs5535_mfgpt_toggle_event(struct cs5535_mfgpt_timer *timer, int cmp,
	214	int event, int enable);
	215	extern int cs5535_mfgpt_set_irq(struct cs5535_mfgpt_timer *timer, int cmp,
	216	int *irq, int enable);
	217	extern struct cs5535_mfgpt_timer *cs5535_mfgpt_alloc_timer(int timer,
	218	int domain);
	219	extern void cs5535_mfgpt_free_timer(struct cs5535_mfgpt_timer *timer);
	220
	221	static inline int cs5535_mfgpt_setup_irq(struct cs5535_mfgpt_timer *timer,
	222	int cmp, int *irq)
	223	{
	224	return cs5535_mfgpt_set_irq(timer, cmp, irq, 1);
	225	}
	226
	227	static inline int cs5535_mfgpt_release_irq(struct cs5535_mfgpt_timer *timer,
	228	int cmp, int *irq)
	229	{
	230	return cs5535_mfgpt_set_irq(timer, cmp, irq, 0);
	231	}
	232
5f0a96b0	233	#endif