@ -2,6 +2,7 @@
* Based on acpi . c from coreboot
*
* Copyright ( C ) 2015 , Saket Sinha < saket . sinha89 @ gmail . com >
* Copyright ( C ) 2016 , Bin Meng < bmeng . cn @ gmail . com >
*
* SPDX - License - Identifier : GPL - 2.0 +
*/
@ -11,33 +12,9 @@
# define OEM_TABLE_ID "U-BOOTBL" /* U-Boot Table */
# define ASLC_ID "INTL" /* Intel ASL Compiler */
# define OEM_REVISION 42
# define ASL_COMPILER_REVISION 42
# define ACPI_REV_ACPI_1_0 1
# define ACPI_REV_ACPI_2_0 1
# define ACPI_REV_ACPI_3_0 2
# define ACPI_REV_ACPI_4_0 3
# define ACPI_REV_ACPI_5_0 5
# define ACPI_RSDP_REV_ACPI_1_0 0
# define ACPI_RSDP_REV_ACPI_2_0 2
typedef struct acpi_gen_regaddr {
u8 space_id ; /* Address space ID */
u8 bit_width ; /* Register size in bits */
u8 bit_offset ; /* Register bit offset */
union {
/* Reserved in ACPI 2.0 - 2.0b */
u8 resv ;
/* Access size in ACPI 2.0c/3.0/4.0/5.0 */
u8 access_size ;
} ;
u32 addrl ; /* Register address, low 32 bits */
u32 addrh ; /* Register address, high 32 bits */
} acpi_addr_t ;
/*
* RSDP ( Root System Description Pointer )
* Note : ACPI 1.0 didn ' t have length , xsdt_address , and ext_checksum
@ -46,7 +23,7 @@ struct acpi_rsdp {
char signature [ 8 ] ; /* RSDP signature */
u8 checksum ; /* Checksum of the first 20 bytes */
char oem_id [ 6 ] ; /* OEM ID */
u8 revision ; /* 0 for ACPI 1.0, 2 for ACPI 2.0/3.0/4.0 */
u8 revision ; /* 0 for ACPI 1.0, others 2 */
u32 rsdt_address ; /* Physical address of RSDT (32 bits) */
u32 length ; /* Total RSDP length (incl. extended part) */
u64 xsdt_address ; /* Physical address of XSDT (64 bits) */
@ -54,24 +31,11 @@ struct acpi_rsdp {
u8 reserved [ 3 ] ;
} ;
enum acpi_address_space_type {
ACPI_ADDRESS_SPACE_MEMORY = 0 , /* System memory */
ACPI_ADDRESS_SPACE_IO , /* System I/O */
ACPI_ADDRESS_SPACE_PCI , /* PCI config space */
ACPI_ADDRESS_SPACE_EC , /* Embedded controller */
ACPI_ADDRESS_SPACE_SMBUS , /* SMBus */
ACPI_ADDRESS_SPACE_PCC = 0x0a , /* Platform Comm. Channel */
ACPI_ADDRESS_SPACE_FIXED = 0x7f /* Functional fixed hardware */
} ;
/* Access size definitions for Generic address structure */
enum acpi_address_space_size {
ACPI_ACCESS_SIZE_UNDEFINED = 0 , /* Undefined (legacy reasons) */
ACPI_ACCESS_SIZE_BYTE_ACCESS = 1 ,
ACPI_ACCESS_SIZE_WORD_ACCESS = 2 ,
ACPI_ACCESS_SIZE_DWORD_ACCESS = 3 ,
ACPI_ACCESS_SIZE_QWORD_ACCESS = 4
} ;
# define ACPI_REV_ACPI_1_0 1
# define ACPI_REV_ACPI_2_0 1
# define ACPI_REV_ACPI_3_0 2
# define ACPI_REV_ACPI_4_0 3
# define ACPI_REV_ACPI_5_0 5
/* Generic ACPI header, provided by (almost) all tables */
struct acpi_table_header {
@ -87,7 +51,7 @@ struct acpi_table_header {
} ;
/* A maximum number of 32 ACPI tables ought to be enough for now */
# define MAX_ACPI_TABLES 32
# define MAX_ACPI_TABLES 32
/* RSDT (Root System Description Table) */
struct acpi_rsdt {
@ -101,84 +65,80 @@ struct acpi_xsdt {
u64 entry [ MAX_ACPI_TABLES ] ;
} ;
/* MCFG (PCI Express MMIO config space BAR description table) */
struct acpi_mcfg {
struct acpi_table_header header ;
u8 reserved [ 8 ] ;
} ;
struct acpi_mcfg_mmconfig {
u32 base_address_l ;
u32 base_address_h ;
u16 pci_segment_group_number ;
u8 start_bus_number ;
u8 end_bus_number ;
u8 reserved [ 4 ] ;
/* FADT Preferred Power Management Profile */
enum acpi_pm_profile {
ACPI_PM_UNSPECIFIED = 0 ,
ACPI_PM_DESKTOP ,
ACPI_PM_MOBILE ,
ACPI_PM_WORKSTATION ,
ACPI_PM_ENTERPRISE_SERVER ,
ACPI_PM_SOHO_SERVER ,
ACPI_PM_APPLIANCE_PC ,
ACPI_PM_PERFORMANCE_SERVER ,
ACPI_PM_TABLET
} ;
/* MADT (Multiple APIC Description Table) */
struct acpi_madt {
struct acpi_table_header header ;
u32 lapic_addr ; /* Local APIC address */
u32 flags ; /* Multiple APIC flags */
} acpi_madt_t ;
/* MADT: APIC Structure Type*/
enum acpi_apic_types {
ACPI_APIC_LAPIC = 0 , /* Processor local APIC */
ACPI_APIC_IOAPIC , /* I/O APIC */
ACPI_APIC_IRQ_SRC_OVERRIDE , /* Interrupt source override */
ACPI_APIC_NMI_SRC , /* NMI source */
ACPI_APIC_LAPIC_NMI , /* Local APIC NMI */
ACPI_APIC_LAPIC_ADDR_OVERRIDE , /* Local APIC address override */
ACPI_APIC_IOSAPIC , /* I/O SAPIC */
ACPI_APIC_LSAPIC , /* Local SAPIC */
ACPI_APIC_PLATFORM_IRQ_SRC , /* Platform interrupt sources */
ACPI_APIC_LX2APIC , /* Processor local x2APIC */
ACPI_APIC_LX2APIC_NMI , /* Local x2APIC NMI */
} ;
/* FADT flags for p_lvl2_lat and p_lvl3_lat */
# define ACPI_FADT_C2_NOT_SUPPORTED 101
# define ACPI_FADT_C3_NOT_SUPPORTED 1001
/* MADT: Processor Local APIC Structure */
struct acpi_madt_lapic {
u8 type ; /* Type (0) */
u8 length ; /* Length in bytes (8) */
u8 processor_id ; /* ACPI processor ID */
u8 apic_id ; /* Local APIC ID */
u32 flags ; /* Local APIC flags */
} ;
/* FADT Boot Architecture Flags */
# define ACPI_FADT_LEGACY_FREE 0x00
# define ACPI_FADT_LEGACY_DEVICES (1 << 0)
# define ACPI_FADT_8042 (1 << 1)
# define ACPI_FADT_VGA_NOT_PRESENT (1 << 2)
# define ACPI_FADT_MSI_NOT_SUPPORTED (1 << 3)
# define ACPI_FADT_NO_PCIE_ASPM_CONTROL (1 << 4)
# define LOCAL_APIC_FLAG_ENABLED (1 << 0)
/* bits 1-31: reserved */
# define PCAT_COMPAT (1 << 0)
/* bits 1-31: reserved */
/* FADT Feature Flags */
# define ACPI_FADT_WBINVD (1 << 0)
# define ACPI_FADT_WBINVD_FLUSH (1 << 1)
# define ACPI_FADT_C1_SUPPORTED (1 << 2)
# define ACPI_FADT_C2_MP_SUPPORTED (1 << 3)
# define ACPI_FADT_POWER_BUTTON (1 << 4)
# define ACPI_FADT_SLEEP_BUTTON (1 << 5)
# define ACPI_FADT_FIXED_RTC (1 << 6)
# define ACPI_FADT_S4_RTC_WAKE (1 << 7)
# define ACPI_FADT_32BIT_TIMER (1 << 8)
# define ACPI_FADT_DOCKING_SUPPORTED (1 << 9)
# define ACPI_FADT_RESET_REGISTER (1 << 10)
# define ACPI_FADT_SEALED_CASE (1 << 11)
# define ACPI_FADT_HEADLESS (1 << 12)
# define ACPI_FADT_SLEEP_TYPE (1 << 13)
# define ACPI_FADT_PCI_EXPRESS_WAKE (1 << 14)
# define ACPI_FADT_PLATFORM_CLOCK (1 << 15)
# define ACPI_FADT_S4_RTC_VALID (1 << 16)
# define ACPI_FADT_REMOTE_POWER_ON (1 << 17)
# define ACPI_FADT_APIC_CLUSTER (1 << 18)
# define ACPI_FADT_APIC_PHYSICAL (1 << 19)
# define ACPI_FADT_HW_REDUCED_ACPI (1 << 20)
# define ACPI_FADT_LOW_PWR_IDLE_S0 (1 << 21)
/* MADT: Local APIC NMI Structure */
struct __packed acpi_madt_lapic_nmi {
u8 type ; /* Type (4) */
u8 length ; /* Length in bytes (6) */
u8 processor_id ; /* ACPI processor ID */
u16 flags ; /* MPS INTI flags */
u8 lint ; /* Local APIC LINT# */
enum acpi_address_space_type {
ACPI_ADDRESS_SPACE_MEMORY = 0 , /* System memory */
ACPI_ADDRESS_SPACE_IO , /* System I/O */
ACPI_ADDRESS_SPACE_PCI , /* PCI config space */
ACPI_ADDRESS_SPACE_EC , /* Embedded controller */
ACPI_ADDRESS_SPACE_SMBUS , /* SMBus */
ACPI_ADDRESS_SPACE_PCC = 0x0a , /* Platform Comm. Channel */
ACPI_ADDRESS_SPACE_FIXED = 0x7f /* Functional fixed hardware */
} ;
/* MADT: I/O APIC Structure */
struct acpi_madt_ioapic {
u8 type ; /* Type (1) */
u8 length ; /* Length in bytes (12) */
u8 ioapic_id ; /* I/O APIC ID */
u8 reserved ;
u32 ioapic_addr ; /* I/O APIC address */
u32 gsi_base ; /* Global system interrupt base */
enum acpi_address_space_size {
ACPI_ACCESS_SIZE_UNDEFINED = 0 ,
ACPI_ACCESS_SIZE_BYTE_ACCESS ,
ACPI_ACCESS_SIZE_WORD_ACCESS ,
ACPI_ACCESS_SIZE_DWORD_ACCESS ,
ACPI_ACCESS_SIZE_QWORD_ACCESS
} ;
/* MADT: Interrupt Source Override Structure */
struct __packed acpi_madt_irqoverride {
u8 type ; /* Type (2) */
u8 length ; /* Length in bytes (10) */
u8 bus ; /* ISA (0) */
u8 source ; /* Bus-relative int. source (IRQ) */
u32 gsirq ; /* Global system interrupt */
u16 flags ; /* MPS INTI flags */
struct acpi_gen_regaddr {
u8 space_id ; /* Address space ID */
u8 bit_width ; /* Register size in bits */
u8 bit_offset ; /* Register bit offset */
u8 access_size ; /* Access size */
u32 addrl ; /* Register address, low 32 bits */
u32 addrh ; /* Register address, high 32 bits */
} ;
/* FADT (Fixed ACPI Description Table) */
@ -241,78 +201,109 @@ struct __packed acpi_fadt {
struct acpi_gen_regaddr x_gpe1_blk ;
} ;
/* Flags for p_lvl2_lat and p_lvl3_lat */
# define ACPI_FADT_C2_NOT_SUPPORTED 101
# define ACPI_FADT_C3_NOT_SUPPORTED 1001
/* FADT Feature Flags */
# define ACPI_FADT_WBINVD (1 << 0)
# define ACPI_FADT_WBINVD_FLUSH (1 << 1)
# define ACPI_FADT_C1_SUPPORTED (1 << 2)
# define ACPI_FADT_C2_MP_SUPPORTED (1 << 3)
# define ACPI_FADT_POWER_BUTTON (1 << 4)
# define ACPI_FADT_SLEEP_BUTTON (1 << 5)
# define ACPI_FADT_FIXED_RTC (1 << 6)
# define ACPI_FADT_S4_RTC_WAKE (1 << 7)
# define ACPI_FADT_32BIT_TIMER (1 << 8)
# define ACPI_FADT_DOCKING_SUPPORTED (1 << 9)
# define ACPI_FADT_RESET_REGISTER (1 << 10)
# define ACPI_FADT_SEALED_CASE (1 << 11)
# define ACPI_FADT_HEADLESS (1 << 12)
# define ACPI_FADT_SLEEP_TYPE (1 << 13)
# define ACPI_FADT_PCI_EXPRESS_WAKE (1 << 14)
# define ACPI_FADT_PLATFORM_CLOCK (1 << 15)
# define ACPI_FADT_S4_RTC_VALID (1 << 16)
# define ACPI_FADT_REMOTE_POWER_ON (1 << 17)
# define ACPI_FADT_APIC_CLUSTER (1 << 18)
# define ACPI_FADT_APIC_PHYSICAL (1 << 19)
/* Bits 20-31: reserved ACPI 3.0 & 4.0 */
# define ACPI_FADT_HW_REDUCED_ACPI (1 << 20)
# define ACPI_FADT_LOW_PWR_IDLE_S0 (1 << 21)
/* bits 22-31: reserved ACPI 5.0 */
/* FADT Boot Architecture Flags */
# define ACPI_FADT_LEGACY_DEVICES (1 << 0)
# define ACPI_FADT_8042 (1 << 1)
# define ACPI_FADT_VGA_NOT_PRESENT (1 << 2)
# define ACPI_FADT_MSI_NOT_SUPPORTED (1 << 3)
# define ACPI_FADT_NO_PCIE_ASPM_CONTROL (1 << 4)
/* No legacy devices (including 8042) */
# define ACPI_FADT_LEGACY_FREE 0x00
/* FADT Preferred Power Management Profile */
enum acpi_pm_profile {
ACPI_PM_UNSPECIFIED = 0 ,
ACPI_PM_DESKTOP ,
ACPI_PM_MOBILE ,
ACPI_PM_WORKSTATION ,
ACPI_PM_ENTERPRISE_SERVER ,
ACPI_PM_SOHO_SERVER ,
ACPI_PM_APPLIANCE_PC ,
ACPI_PM_PERFORMANCE_SERVER ,
ACPI_PM_TABLET
} ;
/* FACS flags */
# define ACPI_FACS_S4BIOS_F (1 << 0)
# define ACPI_FACS_64BIT_WAKE_F (1 << 1)
/* FACS (Firmware ACPI Control Structure) */
struct acpi_facs {
char signature [ 4 ] ; /* "FACS" */
u32 length ; /* Length in bytes (>= 64) */
u32 hardware_signature ; /* Hardware signature */
u32 firmware_waking_vector ; /* Firmware waking vector */
u32 global_lock ; /* Global lock */
u32 flags ; /* FACS flags */
u32 x_firmware_waking_vector_l ; /* X FW waking vector, low */
u32 x_firmware_waking_vector_h ; /* X FW waking vector, high */
u8 version ; /* ACPI 4.0: 2 */
char signature [ 4 ] ; /* "FACS" */
u32 length ; /* Length in bytes (>= 64) */
u32 hardware_signature ; /* Hardware signature */
u32 firmware_waking_vector ; /* Firmware waking vector */
u32 global_lock ; /* Global lock */
u32 flags ; /* FACS flags */
u32 x_firmware_waking_vector_l ; /* X FW waking vector, low */
u32 x_firmware_waking_vector_h ; /* X FW waking vector, high */
u8 version ; /* Version 2 */
u8 res1 [ 3 ] ;
u32 ospm_flags ; /* OSPM enabled flags */
u32 ospm_flags ; /* OSPM enabled flags */
u8 res2 [ 24 ] ;
} ;
/* FACS flags */
# define ACPI_FACS_S4BIOS_F (1 << 0)
# define ACPI_FACS_64BIT_WAKE_F (1 << 1)
/* Bits 31..2: reserved */
/* MADT flags */
# define ACPI_MADT_PCAT_COMPAT (1 << 0)
/* MADT (Multiple APIC Description Table) */
struct acpi_madt {
struct acpi_table_header header ;
u32 lapic_addr ; /* Local APIC address */
u32 flags ; /* Multiple APIC flags */
} ;
/* MADT: APIC Structure Type*/
enum acpi_apic_types {
ACPI_APIC_LAPIC = 0 , /* Processor local APIC */
ACPI_APIC_IOAPIC , /* I/O APIC */
ACPI_APIC_IRQ_SRC_OVERRIDE , /* Interrupt source override */
ACPI_APIC_NMI_SRC , /* NMI source */
ACPI_APIC_LAPIC_NMI , /* Local APIC NMI */
ACPI_APIC_LAPIC_ADDR_OVERRIDE , /* Local APIC address override */
ACPI_APIC_IOSAPIC , /* I/O SAPIC */
ACPI_APIC_LSAPIC , /* Local SAPIC */
ACPI_APIC_PLATFORM_IRQ_SRC , /* Platform interrupt sources */
ACPI_APIC_LX2APIC , /* Processor local x2APIC */
ACPI_APIC_LX2APIC_NMI , /* Local x2APIC NMI */
} ;
/* MADT: Processor Local APIC Structure */
# define LOCAL_APIC_FLAG_ENABLED (1 << 0)
struct acpi_madt_lapic {
u8 type ; /* Type (0) */
u8 length ; /* Length in bytes (8) */
u8 processor_id ; /* ACPI processor ID */
u8 apic_id ; /* Local APIC ID */
u32 flags ; /* Local APIC flags */
} ;
/* MADT: I/O APIC Structure */
struct acpi_madt_ioapic {
u8 type ; /* Type (1) */
u8 length ; /* Length in bytes (12) */
u8 ioapic_id ; /* I/O APIC ID */
u8 reserved ;
u32 ioapic_addr ; /* I/O APIC address */
u32 gsi_base ; /* Global system interrupt base */
} ;
/* MADT: Interrupt Source Override Structure */
struct __packed acpi_madt_irqoverride {
u8 type ; /* Type (2) */
u8 length ; /* Length in bytes (10) */
u8 bus ; /* ISA (0) */
u8 source ; /* Bus-relative int. source (IRQ) */
u32 gsirq ; /* Global system interrupt */
u16 flags ; /* MPS INTI flags */
} ;
/* MADT: Local APIC NMI Structure */
struct __packed acpi_madt_lapic_nmi {
u8 type ; /* Type (4) */
u8 length ; /* Length in bytes (6) */
u8 processor_id ; /* ACPI processor ID */
u16 flags ; /* MPS INTI flags */
u8 lint ; /* Local APIC LINT# */
} ;
/* MCFG (PCI Express MMIO config space BAR description table) */
struct acpi_mcfg {
struct acpi_table_header header ;
u8 reserved [ 8 ] ;
} ;
struct acpi_mcfg_mmconfig {
u32 base_address_l ;
u32 base_address_h ;
u16 pci_segment_group_number ;
u8 start_bus_number ;
u8 end_bus_number ;
u8 reserved [ 4 ] ;
} ;
# define OEM_REVISION 42
# define ASL_COMPILER_REVISION 42
/* These can be used by the target port */
Bin Meng
9 years ago