Release 4.7 include/soc/mediatek/smi.h

/*
 * Copyright (c) 2015-2016 MediaTek Inc.
 * Author: Yong Wu <yong.wu@mediatek.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * 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.
 */
#ifndef MTK_IOMMU_SMI_H

#define MTK_IOMMU_SMI_H

#include <linux/bitops.h>
#include <linux/device.h>

#ifdef CONFIG_MTK_SMI


#define MTK_LARB_NR_MAX		8


#define MTK_SMI_MMU_EN(port)	BIT(port)


struct mtk_smi_larb_iommu {
	
struct device *dev;
	
unsigned int   mmu;
};


struct mtk_smi_iommu {
	
unsigned int larb_nr;
	
struct mtk_smi_larb_iommu larb_imu[MTK_LARB_NR_MAX];
};

/*
 * mtk_smi_larb_get: Enable the power domain and clocks for this local arbiter.
 *                   It also initialize some basic setting(like iommu).
 * mtk_smi_larb_put: Disable the power domain and clocks for this local arbiter.
 * Both should be called in non-atomic context.
 *
 * Returns 0 if successful, negative on failure.
 */
int mtk_smi_larb_get(struct device *larbdev);
void mtk_smi_larb_put(struct device *larbdev);

#else



static inline int mtk_smi_larb_get(struct device *larbdev)
{
	return 0;
}

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static inline void mtk_smi_larb_put(struct device *larbdev) { }

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#endif

#endif
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Directory: include/soc/mediatek

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