diff options
| author | Maximilian Brune <[email protected]> | 2024-10-23 15:19:45 +0200 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-10-27 17:12:44 -0600 |
| commit | f5f7962091e453feb2e3f1bfe79dbace5e087c3e (patch) | |
| tree | 644f954958cae0e4a45de266bf5250d4d3ad5fcb /lib/acpi | |
| parent | 1c03efc01485e2f0ba0a8c7eaa94b1bbbf393251 (diff) | |
acpi: x86: Write FADT in common code
Write the FADT in common code since it's used on all architectures.
Since the FADT is mandatory all SoCs or mainboards must implement the
introduced function acpi_fill_fadt() and properly update the FADT.
Signed-off-by: Patrick Rudolph <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Bin Meng <[email protected]>
Diffstat (limited to 'lib/acpi')
| -rw-r--r-- | lib/acpi/acpi_table.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c index c9ddcca8cb5..9eb0b507a09 100644 --- a/lib/acpi/acpi_table.c +++ b/lib/acpi/acpi_table.c @@ -202,6 +202,44 @@ int acpi_add_table(struct acpi_ctx *ctx, void *table) return 0; } +int acpi_write_fadt(struct acpi_ctx *ctx, const struct acpi_writer *entry) +{ + struct acpi_table_header *header; + struct acpi_fadt *fadt; + + fadt = ctx->current; + header = &fadt->header; + + memset((void *)fadt, '\0', sizeof(struct acpi_fadt)); + + acpi_fill_header(header, "FACP"); + header->length = sizeof(struct acpi_fadt); + header->revision = acpi_get_table_revision(ACPITAB_FADT); + memcpy(header->oem_id, OEM_ID, 6); + memcpy(header->oem_table_id, OEM_TABLE_ID, 8); + memcpy(header->creator_id, ASLC_ID, 4); + header->creator_revision = 1; + + fadt->x_firmware_ctrl = map_to_sysmem(ctx->facs); + fadt->x_dsdt = map_to_sysmem(ctx->dsdt); + + if (fadt->x_firmware_ctrl < 0x100000000ULL) + fadt->firmware_ctrl = fadt->x_firmware_ctrl; + + if (fadt->x_dsdt < 0x100000000ULL) + fadt->dsdt = fadt->x_dsdt; + + fadt->preferred_pm_profile = ACPI_PM_UNSPECIFIED; + + acpi_fill_fadt(fadt); + + header->checksum = table_compute_checksum(fadt, header->length); + + return acpi_add_fadt(ctx, fadt); +} + +ACPI_WRITER(5fadt, "FADT", acpi_write_fadt, 0); + void acpi_create_dbg2(struct acpi_dbg2_header *dbg2, int port_type, int port_subtype, struct acpi_gen_regaddr *address, u32 address_size, |