include/soc/mediatek/smi.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (c) 2015-2016 MediaTek Inc.
   4  * Author: Yong Wu <yong.wu@mediatek.com>
   5  */
   6 #ifndef MTK_IOMMU_SMI_H
   7 #define MTK_IOMMU_SMI_H
   8
   9 #include <linux/bitops.h>
  10 #include <linux/device.h>
  11
  12 #if IS_ENABLED(CONFIG_MTK_SMI)
  13
  14 enum iommu_atf_cmd {
  15         IOMMU_ATF_CMD_CONFIG_SMI_LARB,          /* For mm master to en/disable iommu */
  16         IOMMU_ATF_CMD_CONFIG_INFRA_IOMMU,       /* For infra master to enable iommu */
  17         IOMMU_ATF_CMD_MAX,
  18 };
  19
  20 #define MTK_SMI_MMU_EN(port)    BIT(port)
  21
  22 struct mtk_smi_larb_iommu {
  23         struct device *dev;
  24         unsigned int   mmu;
  25         unsigned char  bank[32];
  26 };
  27
  28 #endif
  29
  30 #endif