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74 lines
1.5 KiB
74 lines
1.5 KiB
/* |
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* Copyright (c) 2018 SiFive Inc. |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#ifndef _SPI_SIFIVE__H |
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#define _SPI_SIFIVE__H |
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#include "spi_context.h" |
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#include <sys/sys_io.h> |
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#include <device.h> |
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#include <drivers/spi.h> |
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#define SPI_CFG(dev) ((struct spi_sifive_cfg *) ((dev)->config)) |
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#define SPI_DATA(dev) ((struct spi_sifive_data *) ((dev)->data)) |
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#define SPI_REG(dev, offset) ((mem_addr_t) (SPI_CFG(dev)->base + (offset))) |
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/* Register Offsets */ |
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#define REG_SCKDIV 0x000 |
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#define REG_SCKMODE 0x004 |
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#define REG_CSID 0x010 |
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#define REG_CSDEF 0x014 |
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#define REG_CSMODE 0x018 |
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#define REG_DELAY0 0x028 |
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#define REG_DELAY1 0x02C |
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#define REG_FMT 0x040 |
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#define REG_TXDATA 0x048 |
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#define REG_RXDATA 0x04C |
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#define REG_TXMARK 0x050 |
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#define REG_RXMARK 0x054 |
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#define REG_FCTRL 0x060 |
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#define REG_FFMT 0x064 |
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#define REG_IE 0x070 |
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#define REG_IP 0x074 |
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/* Masks */ |
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#define SF_SCKDIV_DIV_MASK (0xFFF << 0) |
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#define SF_FMT_PROTO_MASK (0x3 << 0) |
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#define SF_FMT_LEN_MASK (0xF << 16) |
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/* Offsets */ |
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#define SF_SCKMODE_POL 1 |
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#define SF_SCKMODE_PHA 0 |
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#define SF_FMT_LEN 16 |
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#define SF_FMT_ENDIAN 2 |
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#define SF_FCTRL_EN 0 |
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/* Values */ |
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#define SF_CSMODE_AUTO 0 |
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#define SF_CSMODE_HOLD 2 |
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#define SF_CSMODE_OFF 3 |
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#define SF_FMT_PROTO_SINGLE 0 |
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#define SF_TXDATA_FULL (1 << 31) |
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#define SF_RXDATA_EMPTY (1 << 31) |
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/* Structure Declarations */ |
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struct spi_sifive_data { |
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struct spi_context ctx; |
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}; |
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struct spi_sifive_cfg { |
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uint32_t base; |
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uint32_t f_sys; |
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}; |
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#endif /* _SPI_SIFIVE__H */
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