1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * soc-intel-quirks.h - prototypes for quirk autodetection 4 * 5 * Copyright (c) 2019, Intel Corporation. 6 * 7 */ 8 9 #ifndef _SND_SOC_INTEL_QUIRKS_H 10 #define _SND_SOC_INTEL_QUIRKS_H 11 12 #if IS_ENABLED(CONFIG_X86) 13 14 #include <asm/cpu_device_id.h> 15 #include <asm/intel-family.h> 16 #include <asm/iosf_mbi.h> 17 18 #define SOC_INTEL_IS_CPU(soc, type) \ 19 static inline bool soc_intel_is_##soc(void) \ 20 { \ 21 static const struct x86_cpu_id soc##_cpu_ids[] = { \ 22 X86_MATCH_INTEL_FAM6_MODEL(type, NULL), \ 23 {} \ 24 }; \ 25 const struct x86_cpu_id *id; \ 26 \ 27 id = x86_match_cpu(soc##_cpu_ids); \ 28 if (id) \ 29 return true; \ 30 return false; \ 31 } 32 33 SOC_INTEL_IS_CPU(byt, ATOM_SILVERMONT); 34 SOC_INTEL_IS_CPU(cht, ATOM_AIRMONT); 35 SOC_INTEL_IS_CPU(apl, ATOM_GOLDMONT); 36 SOC_INTEL_IS_CPU(glk, ATOM_GOLDMONT_PLUS); 37 SOC_INTEL_IS_CPU(cml, KABYLAKE_L); 38 39 static inline bool soc_intel_is_byt_cr(struct platform_device *pdev) 40 { 41 struct device *dev = &pdev->dev; 42 int status = 0; 43 44 if (!soc_intel_is_byt()) 45 return false; 46 47 if (iosf_mbi_available()) { 48 u32 bios_status; 49 50 status = iosf_mbi_read(BT_MBI_UNIT_PMC, /* 0x04 PUNIT */ 51 MBI_REG_READ, /* 0x10 */ 52 0x006, /* BIOS_CONFIG */ 53 &bios_status); 54 55 if (status) { 56 dev_err(dev, "could not read PUNIT BIOS_CONFIG\n"); 57 } else { 58 /* bits 26:27 mirror PMIC options */ 59 bios_status = (bios_status >> 26) & 3; 60 61 if (bios_status == 1 || bios_status == 3) { 62 dev_info(dev, "Detected Baytrail-CR platform\n"); 63 return true; 64 } 65 66 dev_info(dev, "BYT-CR not detected\n"); 67 } 68 } else { 69 dev_info(dev, "IOSF_MBI not available, no BYT-CR detection\n"); 70 } 71 72 if (!platform_get_resource(pdev, IORESOURCE_IRQ, 5)) { 73 /* 74 * Some devices detected as BYT-T have only a single IRQ listed, 75 * causing platform_get_irq with index 5 to return -ENXIO. 76 * The correct IRQ in this case is at index 0, as on BYT-CR. 77 */ 78 dev_info(dev, "Falling back to Baytrail-CR platform\n"); 79 return true; 80 } 81 82 return false; 83 } 84 85 #else 86 87 static inline bool soc_intel_is_byt_cr(struct platform_device *pdev) 88 { 89 return false; 90 } 91 92 static inline bool soc_intel_is_byt(void) 93 { 94 return false; 95 } 96 97 static inline bool soc_intel_is_cht(void) 98 { 99 return false; 100 } 101 102 static inline bool soc_intel_is_apl(void) 103 { 104 return false; 105 } 106 107 static inline bool soc_intel_is_glk(void) 108 { 109 return false; 110 } 111 112 static inline bool soc_intel_is_cml(void) 113 { 114 return false; 115 } 116 #endif 117 118 #endif /* _SND_SOC_INTEL_QUIRKS_H */ 119