linux/drivers/remoteproc/ingenic_rproc.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Ingenic JZ47xx remoteproc driver
 * Copyright 2019, Paul Cercueil <[email protected]>
 */

#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/remoteproc.h>

#include "remoteproc_internal.h"

#define REG_AUX_CTRL …
#define REG_AUX_MSG_ACK …
#define REG_AUX_MSG …
#define REG_CORE_MSG_ACK …
#define REG_CORE_MSG …

#define AUX_CTRL_SLEEP …
#define AUX_CTRL_MSG_IRQ_EN …
#define AUX_CTRL_NMI_RESETS …
#define AUX_CTRL_NMI …
#define AUX_CTRL_SW_RESET …

static bool auto_boot;
module_param(auto_boot, bool, 0400);
MODULE_PARM_DESC(…) …;

struct vpu_mem_map { … };

struct vpu_mem_info { … };

static const struct vpu_mem_map vpu_mem_map[] = …;

/**
 * struct vpu - Ingenic VPU remoteproc private structure
 * @irq: interrupt number
 * @clks: pointers to the VPU and AUX clocks
 * @aux_base: raw pointer to the AUX interface registers
 * @mem_info: array of struct vpu_mem_info, which contain the mapping info of
 *            each of the external memories
 * @dev: private pointer to the device
 */
struct vpu { … };

static int ingenic_rproc_prepare(struct rproc *rproc)
{ … }

static int ingenic_rproc_unprepare(struct rproc *rproc)
{ … }

static int ingenic_rproc_start(struct rproc *rproc)
{ … }

static int ingenic_rproc_stop(struct rproc *rproc)
{ … }

static void ingenic_rproc_kick(struct rproc *rproc, int vqid)
{ … }

static void *ingenic_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
{ … }

static const struct rproc_ops ingenic_rproc_ops = …;

static irqreturn_t vpu_interrupt(int irq, void *data)
{ … }

static int ingenic_rproc_probe(struct platform_device *pdev)
{ … }

static const struct of_device_id ingenic_rproc_of_matches[] = …;
MODULE_DEVICE_TABLE(of, ingenic_rproc_of_matches);

static struct platform_driver ingenic_rproc_driver = …;
module_platform_driver(…) …;

MODULE_LICENSE(…) …;
MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;