diff options
Diffstat (limited to 'plat/mediatek/mt8186/drivers/spm/mt_spm_extern.c')
| -rw-r--r-- | plat/mediatek/mt8186/drivers/spm/mt_spm_extern.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/plat/mediatek/mt8186/drivers/spm/mt_spm_extern.c b/plat/mediatek/mt8186/drivers/spm/mt_spm_extern.c new file mode 100644 index 0000000..608d9f9 --- /dev/null +++ b/plat/mediatek/mt8186/drivers/spm/mt_spm_extern.c @@ -0,0 +1,23 @@ +/* + * Copyright (c) since 2022, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <common/debug.h> +#include <lib/mmio.h> +#include <platform_def.h> + +#define INFRA_AO_RES_CTRL_MASK (INFRACFG_AO_BASE + 0xB8) +#define INFRA_AO_RES_CTRL_MASK_EMI_IDLE BIT(18) +#define INFRA_AO_RES_CTRL_MASK_MPU_IDLE BIT(15) + +void spm_extern_initialize(void) +{ + unsigned int val; + + val = mmio_read_32(INFRA_AO_RES_CTRL_MASK); + + val |= (INFRA_AO_RES_CTRL_MASK_EMI_IDLE | INFRA_AO_RES_CTRL_MASK_MPU_IDLE); + mmio_write_32(INFRA_AO_RES_CTRL_MASK, val); +} |