arch/x86/include/asm/intel-mid.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * intel-mid.h: Intel MID specific setup code
   4  *
   5  * (C) Copyright 2009 Intel Corporation
   6  */
   7 #ifndef _ASM_X86_INTEL_MID_H
   8 #define _ASM_X86_INTEL_MID_H
   9
  10 #include <linux/sfi.h>
  11 #include <linux/pci.h>
  12 #include <linux/platform_device.h>
  13
  14 extern int intel_mid_pci_init(void);
  15 extern int intel_mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state);
  16 extern pci_power_t intel_mid_pci_get_power_state(struct pci_dev *pdev);
  17
  18 extern void intel_mid_pwr_power_off(void);
  19
  20 #define INTEL_MID_PWR_LSS_OFFSET        4
  21 #define INTEL_MID_PWR_LSS_TYPE          (1 << 7)
  22
  23 extern int intel_mid_pwr_get_lss_id(struct pci_dev *pdev);
  24
  25 extern int get_gpio_by_name(const char *name);
  26 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
  27 extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
  28 extern int sfi_mrtc_num;
  29 extern struct sfi_rtc_table_entry sfi_mrtc_array[];
  30
  31 /*
  32  * Here defines the array of devices platform data that IAFW would export
  33  * through SFI "DEVS" table, we use name and type to match the device and
  34  * its platform data.
  35  */
  36 struct devs_id {
  37         char name[SFI_NAME_LEN + 1];
  38         u8 type;
  39         u8 delay;
  40         u8 msic;
  41         void *(*get_platform_data)(void *info);
  42 };
  43
  44 #define sfi_device(i)                                                           \
  45         static const struct devs_id *const __intel_mid_sfi_##i##_dev __used     \
  46         __attribute__((__section__(".x86_intel_mid_dev.init"))) = &i
  47
  48 /**
  49 * struct mid_sd_board_info - template for SD device creation
  50 * @name:                identifies the driver
  51 * @bus_num:             board-specific identifier for a given SD controller
  52 * @max_clk:             the maximum frequency device supports
  53 * @platform_data:       the particular data stored there is driver-specific
  54 */
  55 struct mid_sd_board_info {
  56         char            name[SFI_NAME_LEN];
  57         int             bus_num;
  58         unsigned short  addr;
  59         u32             max_clk;
  60         void            *platform_data;
  61 };
  62
  63 /*
  64  * Medfield is the follow-up of Moorestown, it combines two chip solution into
  65  * one. Other than that it also added always-on and constant tsc and lapic
  66  * timers. Medfield is the platform name, and the chip name is called Penwell
  67  * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
  68  * identified via MSRs.
  69  */
  70 enum intel_mid_cpu_type {
  71         /* 1 was Moorestown */
  72         INTEL_MID_CPU_CHIP_PENWELL = 2,
  73         INTEL_MID_CPU_CHIP_CLOVERVIEW,
  74         INTEL_MID_CPU_CHIP_TANGIER,
  75 };
  76
  77 extern enum intel_mid_cpu_type __intel_mid_cpu_chip;
  78
  79 #ifdef CONFIG_X86_INTEL_MID
  80
  81 static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
  82 {
  83         return __intel_mid_cpu_chip;
  84 }
  85
  86 static inline bool intel_mid_has_msic(void)
  87 {
  88         return (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL);
  89 }
  90
  91 #else /* !CONFIG_X86_INTEL_MID */
  92
  93 #define intel_mid_identify_cpu()        0
  94 #define intel_mid_has_msic()            0
  95
  96 #endif /* !CONFIG_X86_INTEL_MID */
  97
  98 enum intel_mid_timer_options {
  99         INTEL_MID_TIMER_DEFAULT,
 100         INTEL_MID_TIMER_APBT_ONLY,
 101         INTEL_MID_TIMER_LAPIC_APBT,
 102 };
 103
 104 extern enum intel_mid_timer_options intel_mid_timer_options;
 105
 106 /* Bus Select SoC Fuse value */
 107 #define BSEL_SOC_FUSE_MASK              0x7
 108 /* FSB 133MHz */
 109 #define BSEL_SOC_FUSE_001               0x1
 110 /* FSB 100MHz */
 111 #define BSEL_SOC_FUSE_101               0x5
 112 /* FSB 83MHz */
 113 #define BSEL_SOC_FUSE_111               0x7
 114
 115 #define SFI_MTMR_MAX_NUM                8
 116 #define SFI_MRTC_MAX                    8
 117
 118 extern void intel_scu_devices_create(void);
 119 extern void intel_scu_devices_destroy(void);
 120
 121 /* VRTC timer */
 122 #define MRST_VRTC_MAP_SZ                1024
 123 /* #define MRST_VRTC_PGOFFSET           0xc00 */
 124
 125 extern void intel_mid_rtc_init(void);
 126
 127 /* The offset for the mapping of global gpio pin to irq */
 128 #define INTEL_MID_IRQ_OFFSET            0x100
 129
 130 #endif /* _ASM_X86_INTEL_MID_H */