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drivers/soc/litex: separate MMIO from subregister offset calculation
Separate MMIO (read/write) access into _[read|write]_litex_subregister() static inline functions, leaving existing "READ|WRITE" macros to handle calculation of the subregister offset only. NOTE: this is a non-functional change. Signed-off-by: Gabriel Somlo <gsomlo@gmail.com> Signed-off-by: Stafford Horne <shorne@gmail.com>
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1 changed files with 14 additions and 2 deletions
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@ -24,11 +24,23 @@
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#define LITEX_SUBREG_SIZE 0x1
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#define LITEX_SUBREG_SIZE_BIT (LITEX_SUBREG_SIZE * 8)
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static inline void _write_litex_subregister(u32 val, void __iomem *addr)
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{
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writel((u32 __force)cpu_to_le32(val), addr);
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}
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static inline u32 _read_litex_subregister(void __iomem *addr)
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{
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return le32_to_cpu((__le32 __force)readl(addr));
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}
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#define WRITE_LITEX_SUBREGISTER(val, base_offset, subreg_id) \
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writel((u32 __force)cpu_to_le32(val), base_offset + (LITEX_REG_SIZE * subreg_id))
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_write_litex_subregister(val, (base_offset) + \
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LITEX_REG_SIZE * (subreg_id))
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#define READ_LITEX_SUBREGISTER(base_offset, subreg_id) \
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le32_to_cpu((__le32 __force)readl(base_offset + (LITEX_REG_SIZE * subreg_id)))
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_read_litex_subregister((base_offset) + \
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LITEX_REG_SIZE * (subreg_id))
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/*
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* LiteX SoC Generator, depending on the configuration, can split a single
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