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x86: acpi: Add SPCR table description
Add SPCR table description as it provided in Linux kernel. Port subtype for ACPI_DBG2_SERIAL_PORT is used as an interface type in SPCR. Thus, provide a set of definitions to be utilized later. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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@ -303,6 +303,55 @@ struct acpi_mcfg_mmconfig {
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/* ACPI global NVS structure */
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struct acpi_global_nvs;
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/* DBG2 definitions are partially used for SPCR interface_type */
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/* Types for port_type field */
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#define ACPI_DBG2_SERIAL_PORT 0x8000
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#define ACPI_DBG2_1394_PORT 0x8001
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#define ACPI_DBG2_USB_PORT 0x8002
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#define ACPI_DBG2_NET_PORT 0x8003
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/* Subtypes for port_subtype field */
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#define ACPI_DBG2_16550_COMPATIBLE 0x0000
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#define ACPI_DBG2_16550_SUBSET 0x0001
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#define ACPI_DBG2_ARM_PL011 0x0003
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#define ACPI_DBG2_ARM_SBSA_32BIT 0x000D
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#define ACPI_DBG2_ARM_SBSA_GENERIC 0x000E
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#define ACPI_DBG2_ARM_DCC 0x000F
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#define ACPI_DBG2_BCM2835 0x0010
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#define ACPI_DBG2_1394_STANDARD 0x0000
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#define ACPI_DBG2_USB_XHCI 0x0000
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#define ACPI_DBG2_USB_EHCI 0x0001
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/* SPCR (Serial Port Console Redirection table) */
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struct __packed acpi_spcr {
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struct acpi_table_header header;
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u8 interface_type;
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u8 reserved[3];
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struct acpi_gen_regaddr serial_port;
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u8 interrupt_type;
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u8 pc_interrupt;
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u32 interrupt; /* Global system interrupt */
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u8 baud_rate;
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u8 parity;
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u8 stop_bits;
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u8 flow_control;
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u8 terminal_type;
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u8 reserved1;
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u16 pci_device_id; /* Must be 0xffff if not PCI device */
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u16 pci_vendor_id; /* Must be 0xffff if not PCI device */
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u8 pci_bus;
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u8 pci_device;
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u8 pci_function;
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u32 pci_flags;
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u8 pci_segment;
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u32 reserved2;
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};
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/* These can be used by the target port */
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void acpi_fill_header(struct acpi_table_header *header, char *signature);
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