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/* 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