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- /*
- * 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__ */
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