1 /* SPDX-License-Identifier: GPL-2.0 */
3 * ddbridge-io.h: Digital Devices bridge I/O inline functions
5 * Copyright (C) 2010-2017 Digital Devices GmbH
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License
11 * version 2 only, as published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #ifndef __DDBRIDGE_IO_H__
20 #define __DDBRIDGE_IO_H__
26 /******************************************************************************/
28 static inline u32 ddblreadl(struct ddb_link *link, u32 adr)
30 return readl(link->dev->regs + adr);
33 static inline void ddblwritel(struct ddb_link *link, u32 val, u32 adr)
35 writel(val, link->dev->regs + adr);
38 static inline u32 ddbreadl(struct ddb *dev, u32 adr)
40 return readl(dev->regs + adr);
43 static inline void ddbwritel(struct ddb *dev, u32 val, u32 adr)
45 writel(val, dev->regs + adr);
48 static inline void ddbcpyto(struct ddb *dev, u32 adr, void *src, long count)
50 memcpy_toio(dev->regs + adr, src, count);
53 static inline void ddbcpyfrom(struct ddb *dev, void *dst, u32 adr, long count)
55 memcpy_fromio(dst, dev->regs + adr, count);
58 static inline u32 safe_ddbreadl(struct ddb *dev, u32 adr)
60 u32 val = ddbreadl(dev, adr);
62 /* (ddb)readl returns (uint)-1 (all bits set) on failure, catch that */
64 dev_err(&dev->pdev->dev, "ddbreadl failure, adr=%08x\n", adr);
71 #endif /* __DDBRIDGE_IO_H__ */