mgb4_regs.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2021-2022 Digiteq Automotive
 4 *     author: Martin Tuma <martin.tuma@digiteqautomotive.com>
 5 */
 6
 7#ifndef __MGB4_REGS_H__
 8#define __MGB4_REGS_H__
 9
10#include <linux/io.h>
11
12struct mgb4_regs {
13	resource_size_t mapbase;
14	resource_size_t mapsize;
15	void __iomem *membase;
16};
17
18#define mgb4_write_reg(regs, offset, val) \
19	iowrite32(val, (regs)->membase + (offset))
20#define  mgb4_read_reg(regs, offset) \
21	ioread32((regs)->membase + (offset))
22
23static inline void mgb4_mask_reg(struct mgb4_regs *regs, u32 reg, u32 mask,
24				 u32 val)
25{
26	u32 ret = mgb4_read_reg(regs, reg);
27
28	val |= ret & ~mask;
29	mgb4_write_reg(regs, reg, val);
30}
31
32int mgb4_regs_map(struct resource *res, struct mgb4_regs *regs);
33void mgb4_regs_free(struct mgb4_regs *regs);
34
35#endif