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 <patrick.rudolph@9elements.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
diff --git a/lib/acpi/acpi_table.c b/lib/acpi/acpi_table.c
index c9ddcca..9eb0b50 100644
--- a/lib/acpi/acpi_table.c
+++ b/lib/acpi/acpi_table.c
@@ -202,6 +202,44 @@
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,