linux-imx

// SPDX-License-Identifier: GPL-2.0-or-later

/*

 * Copyright (c) 2012 Samsung Electronics Co., Ltd.

 *      http://www.samsung.com

 *

 * Copyright (C) 2010 Samsung Electronics Co. Ltd.

 *  Jaswinder Singh <jassi.brar@samsung.com>

 */

​

#include <linux/debugfs.h>

#include <linux/kernel.h>

#include <linux/io.h>

#include <linux/init.h>

#include <linux/slab.h>

#include <linux/module.h>

#include <linux/string.h>

#include <linux/delay.h>

#include <linux/interrupt.h>

#include <linux/dma-mapping.h>

#include <linux/dmaengine.h>

#include <linux/amba/bus.h>

#include <linux/scatterlist.h>

#include <linux/of.h>

#include <linux/of_dma.h>

#include <linux/err.h>

#include <linux/pm_runtime.h>

#include <linux/bug.h>

​

#include "dmaengine.h"

#define PL330_MAX_CHAN      8

#define PL330_MAX_IRQS      32

#define PL330_MAX_PERI      32

#define PL330_MAX_BURST         16

​

#define PL330_QUIRK_BROKEN_NO_FLUSHP BIT(0)

​

enum pl330_cachectrl {

    CCTRL0,     /* Noncacheable and nonbufferable */

    CCTRL1,     /* Bufferable only */

    CCTRL2,     /* Cacheable, but do not allocate */

    CCTRL3,     /* Cacheable and bufferable, but do not allocate */

    INVALID1,   /* AWCACHE = 0x1000 */

    INVALID2,

    CCTRL6,     /* Cacheable write-through, allocate on writes only */

    CCTRL7,     /* Cacheable write-back, allocate on writes only */

};

​

enum pl330_byteswap {

    SWAP_NO,

    SWAP_2,

    SWAP_4,

    SWAP_8,

    SWAP_16,

};

​

/* Register and Bit field Definitions */

#define DS          0x0

#define DS_ST_STOP      0x0

#define DS_ST_EXEC      0x1

#define DS_ST_CMISS     0x2

#define DS_ST_UPDTPC        0x3

#define DS_ST_WFE       0x4

#define DS_ST_ATBRR     0x5

#define DS_ST_QBUSY     0x6

#define DS_ST_WFP       0x7

#define DS_ST_KILL      0x8

#define DS_ST_CMPLT     0x9

#define DS_ST_FLTCMP        0xe

#define DS_ST_FAULT     0xf

​

#define DPC         0x4

#define INTEN           0x20

#define ES          0x24

#define INTSTATUS       0x28

#define INTCLR          0x2c

#define FSM         0x30

#define FSC         0x34

#define FTM         0x38

​

#define _FTC            0x40

#define FTC(n)          (_FTC + (n)*0x4)

​

#define _CS         0x100

#define CS(n)           (_CS + (n)*0x8)

#define CS_CNS          (1 << 21)

​

#define _CPC            0x104

#define CPC(n)          (_CPC + (n)*0x8)

​

#define _SA         0x400

#define SA(n)           (_SA + (n)*0x20)

​