#include <common.h>
#include <dm.h>
#include <cpu.h>
+#include <log.h>
#include <mapmem.h>
#include <tables_csum.h>
-#include <version.h>
+#include <version_string.h>
#include <acpi/acpi_table.h>
+#include <asm/global_data.h>
#include <dm/acpi.h>
+/*
+ * OEM_REVISION is 32-bit unsigned number. It should be increased only when
+ * changing software version. Therefore it should not depend on build time.
+ * U-Boot calculates it from U-Boot version and represent it in hexadecimal
+ * notation. As U-Boot version is in form year.month set low 8 bits to 0x01
+ * to have valid date. So for U-Boot version 2021.04 OEM_REVISION is set to
+ * value 0x20210401.
+ */
+#define OEM_REVISION ((((version_num / 1000) % 10) << 28) | \
+ (((version_num / 100) % 10) << 24) | \
+ (((version_num / 10) % 10) << 20) | \
+ ((version_num % 10) << 16) | \
+ (((version_num_patch / 10) % 10) << 12) | \
+ ((version_num_patch % 10) << 8) | \
+ 0x01)
+
int acpi_create_dmar(struct acpi_dmar *dmar, enum dmar_flags flags)
{
struct acpi_table_header *header = &dmar->header;
struct udevice *cpu;
int ret;
- ret = uclass_first_device(UCLASS_CPU, &cpu);
+ ret = uclass_first_device_err(UCLASS_CPU, &cpu);
if (ret)
return log_msg_ret("cpu", ret);
ret = cpu_get_info(cpu, &info);
memcpy(header->signature, signature, 4);
memcpy(header->oem_id, OEM_ID, 6);
memcpy(header->oem_table_id, OEM_TABLE_ID, 8);
- header->oem_revision = U_BOOT_BUILD_DATE;
+ header->oem_revision = OEM_REVISION;
memcpy(header->aslc_id, ASLC_ID, 4);
}
return 0;
}
-static void acpi_write_rsdp(struct acpi_rsdp *rsdp, struct acpi_rsdt *rsdt,
- struct acpi_xsdt *xsdt)
-{
- memset(rsdp, 0, sizeof(struct acpi_rsdp));
-
- memcpy(rsdp->signature, RSDP_SIG, 8);
- memcpy(rsdp->oem_id, OEM_ID, 6);
-
- rsdp->length = sizeof(struct acpi_rsdp);
- rsdp->rsdt_address = map_to_sysmem(rsdt);
-
- rsdp->xsdt_address = map_to_sysmem(xsdt);
- rsdp->revision = ACPI_RSDP_REV_ACPI_2_0;
-
- /* Calculate checksums */
- rsdp->checksum = table_compute_checksum(rsdp, 20);
- rsdp->ext_checksum = table_compute_checksum(rsdp,
- sizeof(struct acpi_rsdp));
-}
-
-static void acpi_write_rsdt(struct acpi_rsdt *rsdt)
-{
- struct acpi_table_header *header = &rsdt->header;
-
- /* Fill out header fields */
- acpi_fill_header(header, "RSDT");
- header->length = sizeof(struct acpi_rsdt);
- header->revision = 1;
-
- /* Entries are filled in later, we come with an empty set */
-
- /* Fix checksum */
- header->checksum = table_compute_checksum(rsdt,
- sizeof(struct acpi_rsdt));
-}
-
-static void acpi_write_xsdt(struct acpi_xsdt *xsdt)
+void acpi_create_dbg2(struct acpi_dbg2_header *dbg2,
+ int port_type, int port_subtype,
+ struct acpi_gen_regaddr *address, u32 address_size,
+ const char *device_path)
{
- struct acpi_table_header *header = &xsdt->header;
-
- /* Fill out header fields */
- acpi_fill_header(header, "XSDT");
- header->length = sizeof(struct acpi_xsdt);
- header->revision = 1;
-
- /* Entries are filled in later, we come with an empty set */
-
- /* Fix checksum */
- header->checksum = table_compute_checksum(xsdt,
- sizeof(struct acpi_xsdt));
-}
+ uintptr_t current;
+ struct acpi_dbg2_device *device;
+ u32 *dbg2_addr_size;
+ struct acpi_table_header *header;
+ size_t path_len;
+ const char *path;
+ char *namespace;
-void acpi_setup_base_tables(struct acpi_ctx *ctx, void *start)
-{
- ctx->current = start;
-
- /* Align ACPI tables to 16 byte */
- acpi_align(ctx);
- gd->arch.acpi_start = map_to_sysmem(ctx->current);
-
- /* We need at least an RSDP and an RSDT Table */
- ctx->rsdp = ctx->current;
- acpi_inc_align(ctx, sizeof(struct acpi_rsdp));
- ctx->rsdt = ctx->current;
- acpi_inc_align(ctx, sizeof(struct acpi_rsdt));
- ctx->xsdt = ctx->current;
- acpi_inc_align(ctx, sizeof(struct acpi_xsdt));
-
- /* clear all table memory */
- memset((void *)start, '\0', ctx->current - start);
-
- acpi_write_rsdp(ctx->rsdp, ctx->rsdt, ctx->xsdt);
- acpi_write_rsdt(ctx->rsdt);
- acpi_write_xsdt(ctx->xsdt);
- /*
- * Per ACPI spec, the FACS table address must be aligned to a 64 byte
- * boundary (Windows checks this, but Linux does not).
- */
- acpi_align64(ctx);
+ /* Fill out header fields. */
+ current = (uintptr_t)dbg2;
+ memset(dbg2, '\0', sizeof(struct acpi_dbg2_header));
+ header = &dbg2->header;
+
+ header->revision = acpi_get_table_revision(ACPITAB_DBG2);
+ acpi_fill_header(header, "DBG2");
+ header->aslc_revision = ASL_REVISION;
+
+ /* One debug device defined */
+ dbg2->devices_offset = sizeof(struct acpi_dbg2_header);
+ dbg2->devices_count = 1;
+ current += sizeof(struct acpi_dbg2_header);
+
+ /* Device comes after the header */
+ device = (struct acpi_dbg2_device *)current;
+ memset(device, 0, sizeof(struct acpi_dbg2_device));
+ current += sizeof(struct acpi_dbg2_device);
+
+ device->revision = 0;
+ device->address_count = 1;
+ device->port_type = port_type;
+ device->port_subtype = port_subtype;
+
+ /* Base Address comes after device structure */
+ memcpy((void *)current, address, sizeof(struct acpi_gen_regaddr));
+ device->base_address_offset = current - (uintptr_t)device;
+ current += sizeof(struct acpi_gen_regaddr);
+
+ /* Address Size comes after address structure */
+ dbg2_addr_size = (uint32_t *)current;
+ device->address_size_offset = current - (uintptr_t)device;
+ *dbg2_addr_size = address_size;
+ current += sizeof(uint32_t);
+
+ /* Namespace string comes last, use '.' if not provided */
+ path = device_path ? : ".";
+ /* Namespace string length includes NULL terminator */
+ path_len = strlen(path) + 1;
+ namespace = (char *)current;
+ device->namespace_string_length = path_len;
+ device->namespace_string_offset = current - (uintptr_t)device;
+ strncpy(namespace, path, path_len);
+ current += path_len;
+
+ /* Update structure lengths and checksum */
+ device->length = current - (uintptr_t)device;
+ header->length = current - (uintptr_t)dbg2;
+ header->checksum = table_compute_checksum(dbg2, header->length);
}
projects / u-boot.git / blobdiff