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x86: acpi: Use GOOG ID for coreboot table 

Use the GOOG ACPI ID until there is an official ID allocation
for coreboot.  Since I administer this range I allocated
0xCB00-0xCBFF for coreboot use.

Change-Id: I38ac0a0267e21f7282c89ef19e8bb72339f13846
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16724
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Martin Roth <martinroth@google.com>
This commit is contained in:
Duncan Laurie 2016-09-22 14:08:33 -07:00 committed by Martin Roth
parent bf97ca42cd
commit 02fdb3e014
2 changed files with 6 additions and 3 deletions
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2
src/arch/x86/acpigen.c
View File

@ -224,7 +224,7 @@ void acpigen_write_coreboot_hid(enum coreboot_acpi_ids id)
{
char hid[9]; /* CORExxxx */
snprintf(hid, sizeof(hid), "%.4s%04u", COREBOOT_ACPI_ID, id);
snprintf(hid, sizeof(hid), "%.4s%04X", COREBOOT_ACPI_ID, id);
acpigen_write_name_string("_HID", hid);
}

7
src/arch/x86/include/arch/acpi.h
View File

@ -57,11 +57,14 @@
#define ACPI_TABLE_CREATOR "COREBOOT" /* Must be exactly 8 bytes long! */
#define OEM_ID "CORE " /* Must be exactly 6 bytes long! */
#define ASLC "CORE" /* Must be exactly 4 bytes long! */
#define COREBOOT_ACPI_ID "CORE" /* ACPI ID for coreboot HIDs */
/* Use GOOGCBxx range until coreboot ID is official */
#define COREBOOT_ACPI_ID "GOOG" /* ACPI ID for coreboot HIDs */
/* List of ACPI HID that use the coreboot ACPI ID */
enum coreboot_acpi_ids {
COREBOOT_ACPI_ID_CBTABLE, /* CORE0000 */
COREBOOT_ACPI_ID_CBTABLE = 0xCB00, /* GOOGCB00 */
COREBOOT_ACPI_ID_MAX = 0xCBFF, /* GOOGCBFF */
};
/* RSDP (Root System Description Pointer) */