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| 5 | #ifndef __LINUX_SPI_LOONGSON_H
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| 6 | #define __LINUX_SPI_LOONGSON_H
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| 7 |
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| 8 | #include <linux/bits.h>
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| 9 | #include <linux/pm.h>
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| 10 | #include <linux/types.h>
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| 11 |
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| 12 | #define LOONGSON_SPI_SPCR_REG 0x00
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| 13 | #define LOONGSON_SPI_SPSR_REG 0x01
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| 14 | #define LOONGSON_SPI_FIFO_REG 0x02
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| 15 | #define LOONGSON_SPI_SPER_REG 0x03
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| 16 | #define LOONGSON_SPI_PARA_REG 0x04
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| 17 | #define LOONGSON_SPI_SFCS_REG 0x05
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| 18 | #define LOONGSON_SPI_TIMI_REG 0x06
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| 19 |
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| 20 |
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| 21 | #define LOONGSON_SPI_PARA_MEM_EN BIT(0)
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| 22 | #define LOONGSON_SPI_SPCR_CPHA BIT(2)
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| 23 | #define LOONGSON_SPI_SPCR_CPOL BIT(3)
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| 24 | #define LOONGSON_SPI_SPCR_SPE BIT(6)
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| 25 | #define LOONGSON_SPI_SPSR_RFEMPTY BIT(0)
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| 26 | #define LOONGSON_SPI_SPSR_WCOL BIT(6)
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| 27 | #define LOONGSON_SPI_SPSR_SPIF BIT(7)
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| 28 |
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| 29 | struct device;
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| 30 | struct spi_controller;
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| 31 |
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| 32 | struct loongson_spi {
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| 33 | struct spi_controller *controller;
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| 34 | void __iomem *base;
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| 35 | int cs_active;
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| 36 | unsigned int hz;
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| 37 | unsigned char spcr;
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| 38 | unsigned char sper;
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| 39 | unsigned char spsr;
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| 40 | unsigned char para;
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| 41 | unsigned char sfcs;
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| 42 | unsigned char timi;
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| 43 | unsigned int mode;
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| 44 | u64 clk_rate;
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| 45 | };
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| 46 |
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| 47 | int loongson_spi_init_controller(struct device *dev, void __iomem *reg);
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| 48 | extern const struct dev_pm_ops loongson_spi_dev_pm_ops;
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| 49 | #endif
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