2 * intel-mid.h: Intel MID specific setup code
4 * (C) Copyright 2009 Intel Corporation
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; version 2
11 #ifndef _ASM_X86_INTEL_MID_H
12 #define _ASM_X86_INTEL_MID_H
14 #include <linux/sfi.h>
15 #include <linux/platform_device.h>
17 extern int intel_mid_pci_init(void);
18 extern int get_gpio_by_name(const char *name);
19 extern void intel_scu_device_register(struct platform_device *pdev);
20 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
21 extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
22 extern int sfi_mrtc_num;
23 extern struct sfi_rtc_table_entry sfi_mrtc_array[];
26 * Here defines the array of devices platform data that IAFW would export
27 * through SFI "DEVS" table, we use name and type to match the device and
31 char name[SFI_NAME_LEN + 1];
34 void *(*get_platform_data)(void *info);
35 /* Custom handler for devices */
36 void (*device_handler)(struct sfi_device_table_entry *pentry,
40 #define sfi_device(i) \
41 static const struct devs_id *const __intel_mid_sfi_##i##_dev __used \
42 __attribute__((__section__(".x86_intel_mid_dev.init"))) = &i
45 * Medfield is the follow-up of Moorestown, it combines two chip solution into
46 * one. Other than that it also added always-on and constant tsc and lapic
47 * timers. Medfield is the platform name, and the chip name is called Penwell
48 * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
49 * identified via MSRs.
51 enum intel_mid_cpu_type {
52 /* 1 was Moorestown */
53 INTEL_MID_CPU_CHIP_PENWELL = 2,
56 extern enum intel_mid_cpu_type __intel_mid_cpu_chip;
58 #ifdef CONFIG_X86_INTEL_MID
60 static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
62 return __intel_mid_cpu_chip;
65 static inline bool intel_mid_has_msic(void)
67 return (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL);
70 #else /* !CONFIG_X86_INTEL_MID */
72 #define intel_mid_identify_cpu() (0)
73 #define intel_mid_has_msic() (0)
75 #endif /* !CONFIG_X86_INTEL_MID */
77 enum intel_mid_timer_options {
78 INTEL_MID_TIMER_DEFAULT,
79 INTEL_MID_TIMER_APBT_ONLY,
80 INTEL_MID_TIMER_LAPIC_APBT,
83 extern enum intel_mid_timer_options intel_mid_timer_options;
86 * Penwell uses spread spectrum clock, so the freq number is not exactly
87 * the same as reported by MSR based on SDM.
89 #define PENWELL_FSB_FREQ_83SKU 83200
90 #define PENWELL_FSB_FREQ_100SKU 99840
92 #define SFI_MTMR_MAX_NUM 8
93 #define SFI_MRTC_MAX 8
95 extern struct console early_mrst_console;
96 extern void mrst_early_console_init(void);
98 extern struct console early_hsu_console;
99 extern void hsu_early_console_init(const char *);
101 extern void intel_scu_devices_create(void);
102 extern void intel_scu_devices_destroy(void);
105 #define MRST_VRTC_MAP_SZ (1024)
106 /*#define MRST_VRTC_PGOFFSET (0xc00) */
108 extern void intel_mid_rtc_init(void);
110 /* the offset for the mapping of global gpio pin to irq */
111 #define INTEL_MID_IRQ_OFFSET 0x100
113 #endif /* _ASM_X86_INTEL_MID_H */