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18#ifndef __SPI_FSL_LIB_H__
19#define __SPI_FSL_LIB_H__
20
21#include <asm/io.h>
22
23
24struct mpc8xxx_spi {
25 struct device *dev;
26 void __iomem *reg_base;
27
28
29 const void *tx;
30 void *rx;
31
32 int subblock;
33 struct spi_pram __iomem *pram;
34#ifdef CONFIG_FSL_SOC
35 struct cpm_buf_desc __iomem *tx_bd;
36 struct cpm_buf_desc __iomem *rx_bd;
37#endif
38
39 struct spi_transfer *xfer_in_progress;
40
41
42 dma_addr_t tx_dma;
43 dma_addr_t rx_dma;
44 bool map_tx_dma;
45 bool map_rx_dma;
46
47 dma_addr_t dma_dummy_tx;
48 dma_addr_t dma_dummy_rx;
49
50
51 void (*get_rx) (u32 rx_data, struct mpc8xxx_spi *);
52 u32(*get_tx) (struct mpc8xxx_spi *);
53
54 unsigned int count;
55 unsigned int irq;
56
57 unsigned nsecs;
58
59 u32 spibrg;
60 u32 rx_shift;
61 u32 tx_shift;
62
63 unsigned int flags;
64
65#if IS_ENABLED(CONFIG_SPI_FSL_SPI)
66 int type;
67 int native_chipselects;
68 u8 max_bits_per_word;
69
70 void (*set_shifts)(u32 *rx_shift, u32 *tx_shift,
71 int bits_per_word, int msb_first);
72#endif
73
74 struct completion done;
75};
76
77struct spi_mpc8xxx_cs {
78
79 void (*get_rx) (u32 rx_data, struct mpc8xxx_spi *);
80 u32 (*get_tx) (struct mpc8xxx_spi *);
81 u32 rx_shift;
82 u32 tx_shift;
83 u32 hw_mode;
84};
85
86static inline void mpc8xxx_spi_write_reg(__be32 __iomem *reg, u32 val)
87{
88 iowrite32be(val, reg);
89}
90
91static inline u32 mpc8xxx_spi_read_reg(__be32 __iomem *reg)
92{
93 return ioread32be(reg);
94}
95
96struct mpc8xxx_spi_probe_info {
97 struct fsl_spi_platform_data pdata;
98 int *gpios;
99 bool *alow_flags;
100};
101
102extern u32 mpc8xxx_spi_tx_buf_u8(struct mpc8xxx_spi *mpc8xxx_spi);
103extern u32 mpc8xxx_spi_tx_buf_u16(struct mpc8xxx_spi *mpc8xxx_spi);
104extern u32 mpc8xxx_spi_tx_buf_u32(struct mpc8xxx_spi *mpc8xxx_spi);
105extern void mpc8xxx_spi_rx_buf_u8(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
106extern void mpc8xxx_spi_rx_buf_u16(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
107extern void mpc8xxx_spi_rx_buf_u32(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
108
109extern struct mpc8xxx_spi_probe_info *to_of_pinfo(
110 struct fsl_spi_platform_data *pdata);
111extern int mpc8xxx_spi_bufs(struct mpc8xxx_spi *mspi,
112 struct spi_transfer *t, unsigned int len);
113extern const char *mpc8xxx_spi_strmode(unsigned int flags);
114extern void mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
115 unsigned int irq);
116extern int mpc8xxx_spi_remove(struct device *dev);
117extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);
118
119#endif
120