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66 lines
1.7 KiB
66 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright © 2015 Broadcom Corporation |
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*/ |
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#ifndef __BRCMNAND_H__ |
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#define __BRCMNAND_H__ |
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#include <linux/types.h> |
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#include <linux/io.h> |
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struct platform_device; |
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struct dev_pm_ops; |
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struct brcmnand_soc { |
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bool (*ctlrdy_ack)(struct brcmnand_soc *soc); |
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void (*ctlrdy_set_enabled)(struct brcmnand_soc *soc, bool en); |
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void (*prepare_data_bus)(struct brcmnand_soc *soc, bool prepare, |
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bool is_param); |
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}; |
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static inline void brcmnand_soc_data_bus_prepare(struct brcmnand_soc *soc, |
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bool is_param) |
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{ |
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if (soc && soc->prepare_data_bus) |
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soc->prepare_data_bus(soc, true, is_param); |
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} |
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static inline void brcmnand_soc_data_bus_unprepare(struct brcmnand_soc *soc, |
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bool is_param) |
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{ |
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if (soc && soc->prepare_data_bus) |
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soc->prepare_data_bus(soc, false, is_param); |
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} |
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static inline u32 brcmnand_readl(void __iomem *addr) |
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{ |
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/* |
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* MIPS endianness is configured by boot strap, which also reverses all |
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* bus endianness (i.e., big-endian CPU + big endian bus ==> native |
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* endian I/O). |
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* |
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* Other architectures (e.g., ARM) either do not support big endian, or |
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* else leave I/O in little endian mode. |
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*/ |
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if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) |
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return __raw_readl(addr); |
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else |
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return readl_relaxed(addr); |
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} |
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static inline void brcmnand_writel(u32 val, void __iomem *addr) |
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{ |
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/* See brcmnand_readl() comments */ |
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if (IS_ENABLED(CONFIG_MIPS) && IS_ENABLED(CONFIG_CPU_BIG_ENDIAN)) |
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__raw_writel(val, addr); |
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else |
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writel_relaxed(val, addr); |
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} |
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int brcmnand_probe(struct platform_device *pdev, struct brcmnand_soc *soc); |
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int brcmnand_remove(struct platform_device *pdev); |
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extern const struct dev_pm_ops brcmnand_pm_ops; |
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#endif /* __BRCMNAND_H__ */
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