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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2021-2022 Digiteq Automotive4 * 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#endif36