1 /* 2 * mrst.h: Intel Moorestown platform specific setup code 3 * 4 * (C) Copyright 2009 Intel Corporation 5 * 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 9 * of the License. 10 */ 11 #ifndef _ASM_X86_MRST_H 12 #define _ASM_X86_MRST_H 13 14 #include <linux/sfi.h> 15 16 extern int pci_mrst_init(void); 17 extern int __init sfi_parse_mrtc(struct sfi_table_header *table); 18 extern int sfi_mrtc_num; 19 extern struct sfi_rtc_table_entry sfi_mrtc_array[]; 20 21 /* 22 * Medfield is the follow-up of Moorestown, it combines two chip solution into 23 * one. Other than that it also added always-on and constant tsc and lapic 24 * timers. Medfield is the platform name, and the chip name is called Penwell 25 * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be 26 * identified via MSRs. 27 */ 28 enum mrst_cpu_type { 29 /* 1 was Moorestown */ 30 MRST_CPU_CHIP_PENWELL = 2, 31 }; 32 33 extern enum mrst_cpu_type __mrst_cpu_chip; 34 35 #ifdef CONFIG_X86_INTEL_MID 36 mrst_identify_cpu(void)37static inline enum mrst_cpu_type mrst_identify_cpu(void) 38 { 39 return __mrst_cpu_chip; 40 } 41 42 #else /* !CONFIG_X86_INTEL_MID */ 43 44 #define mrst_identify_cpu() (0) 45 46 #endif /* !CONFIG_X86_INTEL_MID */ 47 48 enum mrst_timer_options { 49 MRST_TIMER_DEFAULT, 50 MRST_TIMER_APBT_ONLY, 51 MRST_TIMER_LAPIC_APBT, 52 }; 53 54 extern enum mrst_timer_options mrst_timer_options; 55 56 /* 57 * Penwell uses spread spectrum clock, so the freq number is not exactly 58 * the same as reported by MSR based on SDM. 59 */ 60 #define PENWELL_FSB_FREQ_83SKU 83200 61 #define PENWELL_FSB_FREQ_100SKU 99840 62 63 #define SFI_MTMR_MAX_NUM 8 64 #define SFI_MRTC_MAX 8 65 66 extern struct console early_mrst_console; 67 extern void mrst_early_console_init(void); 68 69 extern struct console early_hsu_console; 70 extern void hsu_early_console_init(const char *); 71 72 extern void intel_scu_devices_create(void); 73 extern void intel_scu_devices_destroy(void); 74 75 /* VRTC timer */ 76 #define MRST_VRTC_MAP_SZ (1024) 77 /*#define MRST_VRTC_PGOFFSET (0xc00) */ 78 79 extern void mrst_rtc_init(void); 80 81 #endif /* _ASM_X86_MRST_H */ 82