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/*
* intel-mid.h: Intel MID specific setup code
*
* (C) Copyright 2009 Intel Corporation
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; version 2
* of the License.
*/
#ifndef _ASM_X86_INTEL_MID_H
#define _ASM_X86_INTEL_MID_H
#include <linux/sfi.h>
#include <linux/platform_device.h>
extern int intel_mid_pci_init(void);
extern int get_gpio_by_name(const char *name);
extern void intel_scu_device_register(struct platform_device *pdev);
extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];
/*
* Here defines the array of devices platform data that IAFW would export
* through SFI "DEVS" table, we use name and type to match the device and
* its platform data.
*/
struct devs_id {
char name[SFI_NAME_LEN + 1];
u8 type;
u8 delay;
void *(*get_platform_data)(void *info);
/* Custom handler for devices */
void (*device_handler)(struct sfi_device_table_entry *pentry,
struct devs_id *dev);
};
#define sfi_device(i) \
static const struct devs_id *const __intel_mid_sfi_##i##_dev __used \
__attribute__((__section__(".x86_intel_mid_dev.init"))) = &i
/*
* Medfield is the follow-up of Moorestown, it combines two chip solution into
* one. Other than that it also added always-on and constant tsc and lapic
* timers. Medfield is the platform name, and the chip name is called Penwell
* we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
* identified via MSRs.
*/
enum intel_mid_cpu_type {
/* 1 was Moorestown */
INTEL_MID_CPU_CHIP_PENWELL = 2,
};
extern enum intel_mid_cpu_type __intel_mid_cpu_chip;
#ifdef CONFIG_X86_INTEL_MID
static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
{
return __intel_mid_cpu_chip;
}
static inline bool intel_mid_has_msic(void)
{
return (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL);
}
#else /* !CONFIG_X86_INTEL_MID */
#define intel_mid_identify_cpu() (0)
#define intel_mid_has_msic() (0)
#endif /* !CONFIG_X86_INTEL_MID */
enum intel_mid_timer_options {
INTEL_MID_TIMER_DEFAULT,
INTEL_MID_TIMER_APBT_ONLY,
INTEL_MID_TIMER_LAPIC_APBT,
};
extern enum intel_mid_timer_options intel_mid_timer_options;
/*
* Penwell uses spread spectrum clock, so the freq number is not exactly
* the same as reported by MSR based on SDM.
*/
#define PENWELL_FSB_FREQ_83SKU 83200
#define PENWELL_FSB_FREQ_100SKU 99840
#define SFI_MTMR_MAX_NUM 8
#define SFI_MRTC_MAX 8
extern struct console early_mrst_console;
extern void mrst_early_console_init(void);
extern struct console early_hsu_console;
extern void hsu_early_console_init(const char *);
extern void intel_scu_devices_create(void);
extern void intel_scu_devices_destroy(void);
/* VRTC timer */
#define MRST_VRTC_MAP_SZ (1024)
/*#define MRST_VRTC_PGOFFSET (0xc00) */
extern void intel_mid_rtc_init(void);
/* the offset for the mapping of global gpio pin to irq */
#define INTEL_MID_IRQ_OFFSET 0x100
#endif /* _ASM_X86_INTEL_MID_H */