| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2021-2022 Digiteq Automotive |
| * author: Martin Tuma <martin.tuma@digiteqautomotive.com> |
| */ |
| |
| #ifndef __MGB4_REGS_H__ |
| #define __MGB4_REGS_H__ |
| |
| #include <linux/io.h> |
| |
| struct mgb4_regs { |
| resource_size_t mapbase; |
| resource_size_t mapsize; |
| void __iomem *membase; |
| }; |
| |
| #define mgb4_write_reg(regs, offset, val) \ |
| iowrite32(val, (regs)->membase + (offset)) |
| #define mgb4_read_reg(regs, offset) \ |
| ioread32((regs)->membase + (offset)) |
| |
| static inline void mgb4_mask_reg(struct mgb4_regs *regs, u32 reg, u32 mask, |
| u32 val) |
| { |
| u32 ret = mgb4_read_reg(regs, reg); |
| |
| val |= ret & ~mask; |
| mgb4_write_reg(regs, reg, val); |
| } |
| |
| int mgb4_regs_map(struct resource *res, struct mgb4_regs *regs); |
| void mgb4_regs_free(struct mgb4_regs *regs); |
| |
| #endif |
