72 lines
2.0 KiB
C
72 lines
2.0 KiB
C
/*
|
|
* Copyright © 2015 Broadcom Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#ifndef __BRCMNAND_H__
|
|
#define __BRCMNAND_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/io.h>
|
|
|
|
struct platform_device;
|
|
struct dev_pm_ops;
|
|
|
|
struct brcmnand_soc {
|
|
bool (*ctlrdy_ack)(struct brcmnand_soc *soc);
|
|
void (*ctlrdy_set_enabled)(struct brcmnand_soc *soc, bool en);
|
|
void (*prepare_data_bus)(struct brcmnand_soc *soc, bool prepare);
|
|
};
|
|
|
|
static inline void brcmnand_soc_data_bus_prepare(struct brcmnand_soc *soc)
|
|
{
|
|
if (soc && soc->prepare_data_bus)
|
|
soc->prepare_data_bus(soc, true);
|
|
}
|
|
|
|
static inline void brcmnand_soc_data_bus_unprepare(struct brcmnand_soc *soc)
|
|
{
|
|
if (soc && soc->prepare_data_bus)
|
|
soc->prepare_data_bus(soc, false);
|
|
}
|
|
|
|
static inline u32 brcmnand_readl(void __iomem *addr)
|
|
{
|
|
/*
|
|
* MIPS endianness is configured by boot strap, which also reverses all
|
|
* bus endianness (i.e., big-endian CPU + big endian bus ==> native
|
|
* endian I/O).
|
|
*
|
|
* Other architectures (e.g., ARM) either do not support big endian, or
|
|
* else leave I/O in little endian mode.
|
|
*/
|
|
if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
|
|
return __raw_readl(addr);
|
|
else
|
|
return readl_relaxed(addr);
|
|
}
|
|
|
|
static inline void brcmnand_writel(u32 val, void __iomem *addr)
|
|
{
|
|
/* See brcmnand_readl() comments */
|
|
if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN))
|
|
__raw_writel(val, addr);
|
|
else
|
|
writel_relaxed(val, addr);
|
|
}
|
|
|
|
int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc);
|
|
int brcmnand_remove(struct platform_device *pdev);
|
|
|
|
extern const struct dev_pm_ops brcmnand_pm_ops;
|
|
|
|
#endif /* __BRCMNAND_H__ */
|