82dca611bb
This is based on the old code on arch/x86/kernel/mfgpt_32.c, except it's not x86 specific, it's modular, and it makes use of a PCI BAR rather than a random MSR. Currently module unloading is not supported; it's uncertain whether or not it can be made work with the hardware. [akpm@linux-foundation.org: add X86 dependency] Signed-off-by: Andres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan@cosmicpenguin.net> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: john stultz <johnstul@us.ibm.com> Cc: Chris Ball <cjb@laptop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
126 lines
3.5 KiB
C
126 lines
3.5 KiB
C
/*
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* AMD CS5535/CS5536 definitions
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* Copyright (C) 2006 Advanced Micro Devices, Inc.
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* Copyright (C) 2009 Andres Salomon <dilinger@collabora.co.uk>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public License
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* as published by the Free Software Foundation.
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*/
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#ifndef _CS5535_H
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#define _CS5535_H
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/* MSRs */
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#define MSR_LBAR_SMB 0x5140000B
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#define MSR_LBAR_GPIO 0x5140000C
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#define MSR_LBAR_MFGPT 0x5140000D
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#define MSR_LBAR_ACPI 0x5140000E
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#define MSR_LBAR_PMS 0x5140000F
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#define MSR_PIC_YSEL_LOW 0x51400020
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#define MSR_PIC_YSEL_HIGH 0x51400021
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#define MSR_PIC_ZSEL_LOW 0x51400022
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#define MSR_PIC_ZSEL_HIGH 0x51400023
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#define MSR_PIC_IRQM_LPC 0x51400025
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#define MSR_MFGPT_IRQ 0x51400028
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#define MSR_MFGPT_NR 0x51400029
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#define MSR_MFGPT_SETUP 0x5140002B
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/* resource sizes */
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#define LBAR_GPIO_SIZE 0xFF
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#define LBAR_MFGPT_SIZE 0x40
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#define LBAR_ACPI_SIZE 0x40
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#define LBAR_PMS_SIZE 0x80
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/* GPIOs */
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#define GPIO_OUTPUT_VAL 0x00
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#define GPIO_OUTPUT_ENABLE 0x04
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#define GPIO_OUTPUT_OPEN_DRAIN 0x08
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#define GPIO_OUTPUT_INVERT 0x0C
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#define GPIO_OUTPUT_AUX1 0x10
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#define GPIO_OUTPUT_AUX2 0x14
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#define GPIO_PULL_UP 0x18
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#define GPIO_PULL_DOWN 0x1C
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#define GPIO_INPUT_ENABLE 0x20
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#define GPIO_INPUT_INVERT 0x24
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#define GPIO_INPUT_FILTER 0x28
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#define GPIO_INPUT_EVENT_COUNT 0x2C
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#define GPIO_READ_BACK 0x30
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#define GPIO_INPUT_AUX1 0x34
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#define GPIO_EVENTS_ENABLE 0x38
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#define GPIO_LOCK_ENABLE 0x3C
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#define GPIO_POSITIVE_EDGE_EN 0x40
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#define GPIO_NEGATIVE_EDGE_EN 0x44
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#define GPIO_POSITIVE_EDGE_STS 0x48
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#define GPIO_NEGATIVE_EDGE_STS 0x4C
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#define GPIO_MAP_X 0xE0
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#define GPIO_MAP_Y 0xE4
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#define GPIO_MAP_Z 0xE8
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#define GPIO_MAP_W 0xEC
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void cs5535_gpio_set(unsigned offset, unsigned int reg);
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void cs5535_gpio_clear(unsigned offset, unsigned int reg);
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int cs5535_gpio_isset(unsigned offset, unsigned int reg);
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/* MFGPTs */
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#define MFGPT_MAX_TIMERS 8
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#define MFGPT_TIMER_ANY (-1)
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#define MFGPT_DOMAIN_WORKING 1
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#define MFGPT_DOMAIN_STANDBY 2
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#define MFGPT_DOMAIN_ANY (MFGPT_DOMAIN_WORKING | MFGPT_DOMAIN_STANDBY)
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#define MFGPT_CMP1 0
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#define MFGPT_CMP2 1
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#define MFGPT_EVENT_IRQ 0
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#define MFGPT_EVENT_NMI 1
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#define MFGPT_EVENT_RESET 3
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#define MFGPT_REG_CMP1 0
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#define MFGPT_REG_CMP2 2
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#define MFGPT_REG_COUNTER 4
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#define MFGPT_REG_SETUP 6
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#define MFGPT_SETUP_CNTEN (1 << 15)
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#define MFGPT_SETUP_CMP2 (1 << 14)
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#define MFGPT_SETUP_CMP1 (1 << 13)
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#define MFGPT_SETUP_SETUP (1 << 12)
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#define MFGPT_SETUP_STOPEN (1 << 11)
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#define MFGPT_SETUP_EXTEN (1 << 10)
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#define MFGPT_SETUP_REVEN (1 << 5)
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#define MFGPT_SETUP_CLKSEL (1 << 4)
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struct cs5535_mfgpt_timer;
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extern uint16_t cs5535_mfgpt_read(struct cs5535_mfgpt_timer *timer,
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uint16_t reg);
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extern void cs5535_mfgpt_write(struct cs5535_mfgpt_timer *timer, uint16_t reg,
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uint16_t value);
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extern int cs5535_mfgpt_toggle_event(struct cs5535_mfgpt_timer *timer, int cmp,
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int event, int enable);
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extern int cs5535_mfgpt_set_irq(struct cs5535_mfgpt_timer *timer, int cmp,
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int *irq, int enable);
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extern struct cs5535_mfgpt_timer *cs5535_mfgpt_alloc_timer(int timer,
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int domain);
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extern void cs5535_mfgpt_free_timer(struct cs5535_mfgpt_timer *timer);
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static inline int cs5535_mfgpt_setup_irq(struct cs5535_mfgpt_timer *timer,
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int cmp, int *irq)
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{
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return cs5535_mfgpt_set_irq(timer, cmp, irq, 1);
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}
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static inline int cs5535_mfgpt_release_irq(struct cs5535_mfgpt_timer *timer,
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int cmp, int *irq)
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{
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return cs5535_mfgpt_set_irq(timer, cmp, irq, 0);
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}
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#endif
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