src/soc/amd/common/acpi/lpc.asl

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #if MAINBOARD_HAS_SPEAKER
   4 #define IO61_HID "PNP0800" /* AT style speaker */
   5 #else
   6 #define IO61_HID "PNP0C02" /* reserved resource */
   7 #endif
   8
   9 /* 0:14.3 - LPC */
  10 Device(LPCB) {
  11         Name(_ADR, 0x00140003)
  12
  13         /* Method(_INI) {
  14         *       DBGO("\\_SB\\PCI0\\LpcIsaBr\\_INI\n")
  15         } */ /* End Method(_SB.SBRDG._INI) */
  16
  17         OperationRegion(CFG,PCI_Config,0x0,0x100) // Map PCI Configuration Space
  18         Field(CFG,DWordAcc,NoLock,Preserve){
  19                 Offset(0xA0),
  20                 BAR,32}         // SPI Controller Base Address Register (Index 0xA0)
  21
  22         Device(LDRC)    // LPC device: Resource consumption
  23         {
  24                 Name (_HID, EISAID("PNP0C02"))  // ID for Motherboard resources
  25                 Name (_UID, 0x3278)
  26                 Name (CRS, ResourceTemplate ()  // Current Motherboard resources
  27                 {
  28                         Memory32Fixed(ReadWrite,        // Setup for fixed resource location for SPI base address
  29                         0x00000000,                     // Address Base
  30                         0x00001000,                     // Address Length
  31                         BAR0                            // Descriptor Name
  32                         )
  33
  34                         Memory32Fixed(ReadWrite,        // Setup for fixed resource location for eSPI base address
  35                         0x00000000,                     // Address Base
  36                         0x00001000,                     // Address Length
  37                         BAR1                            // Descriptor Name
  38                         )
  39                 })
  40
  41                 Method(_CRS,0,Serialized)
  42                 {
  43                         CreateDwordField(^CRS,^BAR0._BAS,SPIB)  // Field to hold SPI base address
  44                         CreateDwordField(^CRS,^BAR1._BAS,ESPB)  // Field to hold eSPI base address
  45                         Local0 = BAR & 0xffffff00
  46                         SPIB = Local0   // SPI base address mapped
  47                         Local1 = Local0 + 0x10000
  48                         ESPB = Local1   // eSPI base address mapped
  49                         Return(CRS)
  50                 }
  51         }
  52
  53         /* Real Time Clock Device */
  54         Device(RTC0) {
  55                 Name(_HID, EISAID("PNP0B00"))   /* AT Real Time Clock (not PIIX4 compatible) */
  56                 Name(_CRS, ResourceTemplate() {
  57                         IRQNoFlags(){8}
  58                         IO(Decode16,0x0070, 0x0070, 0, 2)
  59                 })
  60         } /* End Device(_SB.PCI0.LpcIsaBr.RTC0) */
  61
  62         Device(TMR) {   /* Timer */
  63                 Name(_HID,EISAID("PNP0100"))    /* System Timer */
  64                 Name(_CRS, ResourceTemplate() {
  65                         IRQNoFlags(){0}
  66                         IO(Decode16, 0x0040, 0x0040, 0, 4)
  67                 })
  68         } /* End Device(_SB.PCI0.LpcIsaBr.TMR) */
  69
  70         Device(SPKR) {  /* Speaker */
  71                 Name(_HID,EISAID(IO61_HID))
  72                 Name (_UID, 0x7239)
  73                 Name(_CRS, ResourceTemplate() {
  74                         IO(Decode16, 0x0061, 0x0061, 0, 1)
  75                 })
  76         } /* End Device(_SB.PCI0.LpcIsaBr.SPKR) */
  77
  78         Device(PIC) {
  79                 Name(_HID,EISAID("PNP0000"))    /* AT Interrupt Controller */
  80                 Name(_CRS, ResourceTemplate() {
  81                         IRQNoFlags(){2}
  82                         IO(Decode16,0x0020, 0x0020, 0, 2)
  83                         IO(Decode16,0x00a0, 0x00a0, 0, 2)
  84                 })
  85         } /* End Device(_SB.PCI0.LpcIsaBr.PIC) */
  86
  87         Device(MAD) { /* 8257 DMA */
  88                 Name(_HID,EISAID("PNP0200"))    /* Hardware Device ID */
  89                 Name(_CRS, ResourceTemplate() {
  90                         DMA(Compatibility,BusMaster,Transfer8){4}
  91                         IO(Decode16, 0x0000, 0x0000, 0x10, 0x10)
  92                         IO(Decode16, 0x0081, 0x0081, 0x01, 0x03)
  93                         IO(Decode16, 0x0087, 0x0087, 0x01, 0x01)
  94                         IO(Decode16, 0x0089, 0x0089, 0x01, 0x03)
  95                         IO(Decode16, 0x008f, 0x008f, 0x01, 0x01)
  96                         IO(Decode16, 0x00c0, 0x00c0, 0x10, 0x20)
  97                 }) /* End Name(_SB.PCI0.LpcIsaBr.MAD._CRS) */
  98         } /* End Device(_SB.PCI0.LpcIsaBr.MAD) */
  99
 100         Device(COPR) {
 101                 Name(_HID,EISAID("PNP0C04"))    /* Math Coprocessor */
 102                 Name(_CRS, ResourceTemplate() {
 103                         IO(Decode16, 0x00f0, 0x00f0, 0, 0x10)
 104                         IRQNoFlags(){13}
 105                 })
 106         } /* End Device(_SB.PCI0.LpcIsaBr.COPR) */
 107 } /* end LPCB */