include/linux/cs5535.h - linux - Git at Google

 /* SPDX-License-Identifier: GPL-2.0-only */
 /*
  * AMD CS5535/CS5536 definitions
  * Copyright (C) 2006  Advanced Micro Devices, Inc.
  * Copyright (C) 2009  Andres Salomon <dilinger@collabora.co.uk>
  */

 #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_RTC_DOMA_OFFSET	0x51400055
 #define MSR_RTC_MONA_OFFSET	0x51400056
 #define MSR_RTC_CEN_OFFSET	0x51400057

 #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_RTC_FLAG		(1 << 10)
 #define CS5536_PWRBTN_FLAG	(1 << 8)

 /* CS5536_PM1_EN bits */
 #define CS5536_PM_PWRBTN	(1 << 8)
 #define CS5536_PM_RTC		(1 << 10)

 /* 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
	/* SPDX-License-Identifier: GPL-2.0-only */
	/*
	* AMD CS5535/CS5536 definitions
	* Copyright (C) 2006 Advanced Micro Devices, Inc.
	* Copyright (C) 2009 Andres Salomon <dilinger@collabora.co.uk>
	*/

	#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_RTC_DOMA_OFFSET 0x51400055
	#define MSR_RTC_MONA_OFFSET 0x51400056
	#define MSR_RTC_CEN_OFFSET 0x51400057

	#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_RTC_FLAG (1 << 10)
	#define CS5536_PWRBTN_FLAG (1 << 8)

	/* CS5536_PM1_EN bits */
	#define CS5536_PM_PWRBTN (1 << 8)
	#define CS5536_PM_RTC (1 << 10)

	/* 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