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acpi: x86: Write FADT in common code

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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 <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Maximilian Brune
2024-10-23 15:19:45 +02:00
committed by Tom Rini
parent 1c03efc014
commit f5f7962091
9 changed files with 62 additions and 109 deletions
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38
lib/acpi/acpi_table.c
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@@ -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,