upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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357 lines
10 KiB
357 lines
10 KiB
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Based on acpi.c from coreboot
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*
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* Copyright (C) 2015, Saket Sinha <saket.sinha89@gmail.com>
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* Copyright (C) 2016, Bin Meng <bmeng.cn@gmail.com>
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*/
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#define RSDP_SIG "RSD PTR " /* RSDP pointer signature */
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#define OEM_ID "U-BOOT" /* U-Boot */
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#define OEM_TABLE_ID "U-BOOTBL" /* U-Boot Table */
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#define ASLC_ID "INTL" /* Intel ASL Compiler */
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#define ACPI_RSDP_REV_ACPI_1_0 0
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#define ACPI_RSDP_REV_ACPI_2_0 2
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/*
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* RSDP (Root System Description Pointer)
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* Note: ACPI 1.0 didn't have length, xsdt_address, and ext_checksum
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*/
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struct acpi_rsdp {
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char signature[8]; /* RSDP signature */
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u8 checksum; /* Checksum of the first 20 bytes */
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char oem_id[6]; /* OEM ID */
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u8 revision; /* 0 for ACPI 1.0, others 2 */
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u32 rsdt_address; /* Physical address of RSDT (32 bits) */
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u32 length; /* Total RSDP length (incl. extended part) */
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u64 xsdt_address; /* Physical address of XSDT (64 bits) */
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u8 ext_checksum; /* Checksum of the whole table */
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u8 reserved[3];
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};
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/* Generic ACPI header, provided by (almost) all tables */
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struct acpi_table_header {
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char signature[4]; /* ACPI signature (4 ASCII characters) */
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u32 length; /* Table length in bytes (incl. header) */
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u8 revision; /* Table version (not ACPI version!) */
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volatile u8 checksum; /* To make sum of entire table == 0 */
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char oem_id[6]; /* OEM identification */
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char oem_table_id[8]; /* OEM table identification */
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u32 oem_revision; /* OEM revision number */
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char aslc_id[4]; /* ASL compiler vendor ID */
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u32 aslc_revision; /* ASL compiler revision number */
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};
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/* A maximum number of 32 ACPI tables ought to be enough for now */
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#define MAX_ACPI_TABLES 32
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/* RSDT (Root System Description Table) */
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struct acpi_rsdt {
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struct acpi_table_header header;
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u32 entry[MAX_ACPI_TABLES];
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};
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/* XSDT (Extended System Description Table) */
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struct acpi_xsdt {
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struct acpi_table_header header;
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u64 entry[MAX_ACPI_TABLES];
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};
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/* FADT Preferred Power Management Profile */
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enum acpi_pm_profile {
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ACPI_PM_UNSPECIFIED = 0,
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ACPI_PM_DESKTOP,
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ACPI_PM_MOBILE,
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ACPI_PM_WORKSTATION,
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ACPI_PM_ENTERPRISE_SERVER,
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ACPI_PM_SOHO_SERVER,
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ACPI_PM_APPLIANCE_PC,
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ACPI_PM_PERFORMANCE_SERVER,
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ACPI_PM_TABLET
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};
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/* FADT flags for p_lvl2_lat and p_lvl3_lat */
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#define ACPI_FADT_C2_NOT_SUPPORTED 101
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#define ACPI_FADT_C3_NOT_SUPPORTED 1001
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/* FADT Boot Architecture Flags */
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#define ACPI_FADT_LEGACY_FREE 0x00
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#define ACPI_FADT_LEGACY_DEVICES (1 << 0)
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#define ACPI_FADT_8042 (1 << 1)
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#define ACPI_FADT_VGA_NOT_PRESENT (1 << 2)
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#define ACPI_FADT_MSI_NOT_SUPPORTED (1 << 3)
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#define ACPI_FADT_NO_PCIE_ASPM_CONTROL (1 << 4)
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/* FADT Feature Flags */
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#define ACPI_FADT_WBINVD (1 << 0)
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#define ACPI_FADT_WBINVD_FLUSH (1 << 1)
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#define ACPI_FADT_C1_SUPPORTED (1 << 2)
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#define ACPI_FADT_C2_MP_SUPPORTED (1 << 3)
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#define ACPI_FADT_POWER_BUTTON (1 << 4)
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#define ACPI_FADT_SLEEP_BUTTON (1 << 5)
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#define ACPI_FADT_FIXED_RTC (1 << 6)
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#define ACPI_FADT_S4_RTC_WAKE (1 << 7)
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#define ACPI_FADT_32BIT_TIMER (1 << 8)
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#define ACPI_FADT_DOCKING_SUPPORTED (1 << 9)
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#define ACPI_FADT_RESET_REGISTER (1 << 10)
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#define ACPI_FADT_SEALED_CASE (1 << 11)
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#define ACPI_FADT_HEADLESS (1 << 12)
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#define ACPI_FADT_SLEEP_TYPE (1 << 13)
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#define ACPI_FADT_PCI_EXPRESS_WAKE (1 << 14)
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#define ACPI_FADT_PLATFORM_CLOCK (1 << 15)
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#define ACPI_FADT_S4_RTC_VALID (1 << 16)
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#define ACPI_FADT_REMOTE_POWER_ON (1 << 17)
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#define ACPI_FADT_APIC_CLUSTER (1 << 18)
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#define ACPI_FADT_APIC_PHYSICAL (1 << 19)
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#define ACPI_FADT_HW_REDUCED_ACPI (1 << 20)
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#define ACPI_FADT_LOW_PWR_IDLE_S0 (1 << 21)
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enum acpi_address_space_type {
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ACPI_ADDRESS_SPACE_MEMORY = 0, /* System memory */
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ACPI_ADDRESS_SPACE_IO, /* System I/O */
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ACPI_ADDRESS_SPACE_PCI, /* PCI config space */
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ACPI_ADDRESS_SPACE_EC, /* Embedded controller */
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ACPI_ADDRESS_SPACE_SMBUS, /* SMBus */
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ACPI_ADDRESS_SPACE_PCC = 0x0a, /* Platform Comm. Channel */
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ACPI_ADDRESS_SPACE_FIXED = 0x7f /* Functional fixed hardware */
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};
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enum acpi_address_space_size {
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ACPI_ACCESS_SIZE_UNDEFINED = 0,
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ACPI_ACCESS_SIZE_BYTE_ACCESS,
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ACPI_ACCESS_SIZE_WORD_ACCESS,
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ACPI_ACCESS_SIZE_DWORD_ACCESS,
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ACPI_ACCESS_SIZE_QWORD_ACCESS
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};
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struct acpi_gen_regaddr {
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u8 space_id; /* Address space ID */
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u8 bit_width; /* Register size in bits */
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u8 bit_offset; /* Register bit offset */
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u8 access_size; /* Access size */
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u32 addrl; /* Register address, low 32 bits */
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u32 addrh; /* Register address, high 32 bits */
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};
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/* FADT (Fixed ACPI Description Table) */
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struct __packed acpi_fadt {
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struct acpi_table_header header;
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u32 firmware_ctrl;
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u32 dsdt;
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u8 res1;
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u8 preferred_pm_profile;
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u16 sci_int;
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u32 smi_cmd;
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u8 acpi_enable;
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u8 acpi_disable;
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u8 s4bios_req;
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u8 pstate_cnt;
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u32 pm1a_evt_blk;
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u32 pm1b_evt_blk;
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u32 pm1a_cnt_blk;
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u32 pm1b_cnt_blk;
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u32 pm2_cnt_blk;
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u32 pm_tmr_blk;
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u32 gpe0_blk;
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u32 gpe1_blk;
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u8 pm1_evt_len;
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u8 pm1_cnt_len;
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u8 pm2_cnt_len;
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u8 pm_tmr_len;
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u8 gpe0_blk_len;
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u8 gpe1_blk_len;
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u8 gpe1_base;
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u8 cst_cnt;
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u16 p_lvl2_lat;
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u16 p_lvl3_lat;
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u16 flush_size;
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u16 flush_stride;
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u8 duty_offset;
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u8 duty_width;
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u8 day_alrm;
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u8 mon_alrm;
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u8 century;
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u16 iapc_boot_arch;
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u8 res2;
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u32 flags;
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struct acpi_gen_regaddr reset_reg;
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u8 reset_value;
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u16 arm_boot_arch;
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u8 minor_revision;
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u32 x_firmware_ctl_l;
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u32 x_firmware_ctl_h;
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u32 x_dsdt_l;
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u32 x_dsdt_h;
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struct acpi_gen_regaddr x_pm1a_evt_blk;
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struct acpi_gen_regaddr x_pm1b_evt_blk;
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struct acpi_gen_regaddr x_pm1a_cnt_blk;
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struct acpi_gen_regaddr x_pm1b_cnt_blk;
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struct acpi_gen_regaddr x_pm2_cnt_blk;
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struct acpi_gen_regaddr x_pm_tmr_blk;
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struct acpi_gen_regaddr x_gpe0_blk;
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struct acpi_gen_regaddr x_gpe1_blk;
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};
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/* FACS flags */
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#define ACPI_FACS_S4BIOS_F (1 << 0)
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#define ACPI_FACS_64BIT_WAKE_F (1 << 1)
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/* FACS (Firmware ACPI Control Structure) */
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struct acpi_facs {
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char signature[4]; /* "FACS" */
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u32 length; /* Length in bytes (>= 64) */
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u32 hardware_signature; /* Hardware signature */
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u32 firmware_waking_vector; /* Firmware waking vector */
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u32 global_lock; /* Global lock */
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u32 flags; /* FACS flags */
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u32 x_firmware_waking_vector_l; /* X FW waking vector, low */
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u32 x_firmware_waking_vector_h; /* X FW waking vector, high */
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u8 version; /* Version 2 */
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u8 res1[3];
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u32 ospm_flags; /* OSPM enabled flags */
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u8 res2[24];
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};
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/* MADT flags */
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#define ACPI_MADT_PCAT_COMPAT (1 << 0)
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/* MADT (Multiple APIC Description Table) */
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struct acpi_madt {
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struct acpi_table_header header;
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u32 lapic_addr; /* Local APIC address */
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u32 flags; /* Multiple APIC flags */
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};
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/* MADT: APIC Structure Type*/
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enum acpi_apic_types {
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ACPI_APIC_LAPIC = 0, /* Processor local APIC */
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ACPI_APIC_IOAPIC, /* I/O APIC */
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ACPI_APIC_IRQ_SRC_OVERRIDE, /* Interrupt source override */
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ACPI_APIC_NMI_SRC, /* NMI source */
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ACPI_APIC_LAPIC_NMI, /* Local APIC NMI */
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ACPI_APIC_LAPIC_ADDR_OVERRIDE, /* Local APIC address override */
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ACPI_APIC_IOSAPIC, /* I/O SAPIC */
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ACPI_APIC_LSAPIC, /* Local SAPIC */
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ACPI_APIC_PLATFORM_IRQ_SRC, /* Platform interrupt sources */
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ACPI_APIC_LX2APIC, /* Processor local x2APIC */
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ACPI_APIC_LX2APIC_NMI, /* Local x2APIC NMI */
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};
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/* MADT: Processor Local APIC Structure */
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#define LOCAL_APIC_FLAG_ENABLED (1 << 0)
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struct acpi_madt_lapic {
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u8 type; /* Type (0) */
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u8 length; /* Length in bytes (8) */
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u8 processor_id; /* ACPI processor ID */
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u8 apic_id; /* Local APIC ID */
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u32 flags; /* Local APIC flags */
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};
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/* MADT: I/O APIC Structure */
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struct acpi_madt_ioapic {
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u8 type; /* Type (1) */
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u8 length; /* Length in bytes (12) */
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u8 ioapic_id; /* I/O APIC ID */
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u8 reserved;
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u32 ioapic_addr; /* I/O APIC address */
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u32 gsi_base; /* Global system interrupt base */
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};
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/* MADT: Interrupt Source Override Structure */
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struct __packed acpi_madt_irqoverride {
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u8 type; /* Type (2) */
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u8 length; /* Length in bytes (10) */
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u8 bus; /* ISA (0) */
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u8 source; /* Bus-relative int. source (IRQ) */
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u32 gsirq; /* Global system interrupt */
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u16 flags; /* MPS INTI flags */
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};
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/* MADT: Local APIC NMI Structure */
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struct __packed acpi_madt_lapic_nmi {
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u8 type; /* Type (4) */
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u8 length; /* Length in bytes (6) */
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u8 processor_id; /* ACPI processor ID */
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u16 flags; /* MPS INTI flags */
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u8 lint; /* Local APIC LINT# */
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};
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/* MCFG (PCI Express MMIO config space BAR description table) */
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struct acpi_mcfg {
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struct acpi_table_header header;
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u8 reserved[8];
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};
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struct acpi_mcfg_mmconfig {
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u32 base_address_l;
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u32 base_address_h;
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u16 pci_segment_group_number;
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u8 start_bus_number;
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u8 end_bus_number;
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u8 reserved[4];
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};
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/* PM1_CNT bit defines */
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#define PM1_CNT_SCI_EN (1 << 0)
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/* ACPI global NVS structure */
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struct acpi_global_nvs;
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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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void acpi_create_fadt(struct acpi_fadt *fadt, struct acpi_facs *facs,
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void *dsdt);
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int acpi_create_madt_lapics(u32 current);
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int acpi_create_madt_ioapic(struct acpi_madt_ioapic *ioapic, u8 id,
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u32 addr, u32 gsi_base);
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int acpi_create_madt_irqoverride(struct acpi_madt_irqoverride *irqoverride,
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u8 bus, u8 source, u32 gsirq, u16 flags);
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int acpi_create_madt_lapic_nmi(struct acpi_madt_lapic_nmi *lapic_nmi,
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u8 cpu, u16 flags, u8 lint);
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u32 acpi_fill_madt(u32 current);
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int acpi_create_mcfg_mmconfig(struct acpi_mcfg_mmconfig *mmconfig, u32 base,
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u16 seg_nr, u8 start, u8 end);
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u32 acpi_fill_mcfg(u32 current);
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void acpi_create_gnvs(struct acpi_global_nvs *gnvs);
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/**
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* enter_acpi_mode() - enter into ACPI mode
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*
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* This programs the ACPI-defined PM1_CNT register to enable SCI interrupt
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* so that the whole system swiches to ACPI mode.
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*
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* @pm1_cnt: PM1_CNT register I/O address
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*/
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void enter_acpi_mode(int pm1_cnt);
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ulong write_acpi_tables(ulong start);
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/**
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* acpi_get_rsdp_addr() - get ACPI RSDP table address
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*
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* This routine returns the ACPI RSDP table address in the system memory.
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*
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* @return: ACPI RSDP table address
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*/
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ulong acpi_get_rsdp_addr(void);
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/**
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* acpi_find_fadt() - find ACPI FADT table in the sytem memory
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*
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* This routine parses the ACPI table to locate the ACPI FADT table.
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*
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* @return: a pointer to the ACPI FADT table in the system memory
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*/
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struct acpi_fadt *acpi_find_fadt(void);
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/**
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* acpi_find_wakeup_vector() - find OS installed wake up vector address
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*
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* This routine parses the ACPI table to locate the wake up vector installed
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* by the OS previously.
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*
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* @return: wake up vector address installed by the OS
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*/
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void *acpi_find_wakeup_vector(struct acpi_fadt *);
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