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u-boot
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drivers
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spi
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cadence_qspi.h

cadence_qspi.h 2.3 KB
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  1. /*
    2. 

  2.  * Copyright (C) 2012
    3. 

  3.  * Altera Corporation <www.altera.com>
    4. 

  4.  *
    5. 

  5.  * SPDX-License-Identifier:	GPL-2.0+
    6. 

  6.  */
    7. 

  7. 

  8. #ifndef __CADENCE_QSPI_H__
    9. 

  9. #define __CADENCE_QSPI_H__
    10. 

  10. 

  11. #define CQSPI_IS_ADDR(cmd_len)		(cmd_len > 1 ? 1 : 0)
    12. 

  12. 

  13. #define CQSPI_NO_DECODER_MAX_CS		4
    14. 

  14. #define CQSPI_DECODER_MAX_CS		16
    15. 

  15. #define CQSPI_READ_CAPTURE_MAX_DELAY	16
    16. 

  16. 

  17. struct cadence_spi_platdata {
    18. 

  18. 	unsigned int	max_hz;
    19. 

  19. 	void		*regbase;
    20. 

  20. 	void		*ahbbase;
    21. 

  21. 

  22. 	u32		page_size;
    23. 

  23. 	u32		block_size;
    24. 

  24. 	u32		tshsl_ns;
    25. 

  25. 	u32		tsd2d_ns;
    26. 

  26. 	u32		tchsh_ns;
    27. 

  27. 	u32		tslch_ns;
    28. 

  28. };
    29. 

  29. 

  30. struct cadence_spi_priv {
    31. 

  31. 	void		*regbase;
    32. 

  32. 	void		*ahbbase;
    33. 

  33. 	size_t		cmd_len;
    34. 

  34. 	u8		cmd_buf[32];
    35. 

  35. 	size_t		data_len;
    36. 

  36. 

  37. 	int		qspi_is_init;
    38. 

  38. 	unsigned int	qspi_calibrated_hz;
    39. 

  39. 	unsigned int	qspi_calibrated_cs;
    40. 

  40. };
    41. 

  41. 

  42. /* Functions call declaration */
    43. 

  43. void cadence_qspi_apb_controller_init(struct cadence_spi_platdata *plat);
    44. 

  44. void cadence_qspi_apb_controller_enable(void *reg_base_addr);
    45. 

  45. void cadence_qspi_apb_controller_disable(void *reg_base_addr);
    46. 

  46. 

  47. int cadence_qspi_apb_command_read(void *reg_base_addr,
    48. 

  48. 	unsigned int cmdlen, const u8 *cmdbuf, unsigned int rxlen, u8 *rxbuf);
    49. 

  49. int cadence_qspi_apb_command_write(void *reg_base_addr,
    50. 

  50. 	unsigned int cmdlen, const u8 *cmdbuf,
    51. 

  51. 	unsigned int txlen,  const u8 *txbuf);
    52. 

  52. 

  53. int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat,
    54. 

  54. 	unsigned int cmdlen, const u8 *cmdbuf);
    55. 

  55. int cadence_qspi_apb_indirect_read_execute(struct cadence_spi_platdata *plat,
    56. 

  56. 	unsigned int rxlen, u8 *rxbuf);
    57. 

  57. int cadence_qspi_apb_indirect_write_setup(struct cadence_spi_platdata *plat,
    58. 

  58. 	unsigned int cmdlen, const u8 *cmdbuf);
    59. 

  59. int cadence_qspi_apb_indirect_write_execute(struct cadence_spi_platdata *plat,
    60. 

  60. 	unsigned int txlen, const u8 *txbuf);
    61. 

  61. 

  62. void cadence_qspi_apb_chipselect(void *reg_base,
    63. 

  63. 	unsigned int chip_select, unsigned int decoder_enable);
    64. 

  64. void cadence_qspi_apb_set_clk_mode(void *reg_base_addr,
    65. 

  65. 	unsigned int clk_pol, unsigned int clk_pha);
    66. 

  66. void cadence_qspi_apb_config_baudrate_div(void *reg_base,
    67. 

  67. 	unsigned int ref_clk_hz, unsigned int sclk_hz);
    68. 

  68. void cadence_qspi_apb_delay(void *reg_base,
    69. 

  69. 	unsigned int ref_clk, unsigned int sclk_hz,
    70. 

  70. 	unsigned int tshsl_ns, unsigned int tsd2d_ns,
    71. 

  71. 	unsigned int tchsh_ns, unsigned int tslch_ns);
    72. 

  72. void cadence_qspi_apb_enter_xip(void *reg_base, char xip_dummy);
    73. 

  73. void cadence_qspi_apb_readdata_capture(void *reg_base,
    74. 

  74. 	unsigned int bypass, unsigned int delay);
    75. 

  75. 

  76. #endif /* __CADENCE_QSPI_H__ */
    77.