diff options
Diffstat (limited to 'src/soc/amd/common/block/acpi/halt.c')
-rw-r--r-- | src/soc/amd/common/block/acpi/halt.c | 33 |
1 files changed, 0 insertions, 33 deletions
diff --git a/src/soc/amd/common/block/acpi/halt.c b/src/soc/amd/common/block/acpi/halt.c deleted file mode 100644 index 200b3c12f5..0000000000 --- a/src/soc/amd/common/block/acpi/halt.c +++ /dev/null @@ -1,33 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2018 Google Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - */ - -#include <arch/acpi.h> -#include <soc/southbridge.h> -#include <amdblocks/acpimmio.h> -#include <halt.h> - -void poweroff(void) -{ - acpi_write32(MMIO_ACPI_PM1_CNT_BLK, - (SLP_TYP_S5 << SLP_TYP_SHIFT) | SLP_EN); - - /* - * Setting SLP_TYP_S5 in PM1 triggers SLP_SMI, which is handled by SMM - * to transition to S5 state. If halt is called in SMM, then it prevents - * the SMI handler from being triggered and system never enters S5. - */ - if (!ENV_SMM) - halt(); -} |