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git.ipfire.org Git - thirdparty/u-boot.git/blob - drivers/spi/cadence_qspi.h
1 /* SPDX-License-Identifier: GPL-2.0+ */
4 * Altera Corporation <www.altera.com>
7 #ifndef __CADENCE_QSPI_H__
8 #define __CADENCE_QSPI_H__
10 #define CQSPI_IS_ADDR(cmd_len) (cmd_len > 1 ? 1 : 0)
12 #define CQSPI_NO_DECODER_MAX_CS 4
13 #define CQSPI_DECODER_MAX_CS 16
14 #define CQSPI_READ_CAPTURE_MAX_DELAY 16
16 struct cadence_spi_platdata
{
25 /* Flash parameters */
34 struct cadence_spi_priv
{
42 unsigned int qspi_calibrated_hz
;
43 unsigned int qspi_calibrated_cs
;
44 unsigned int previous_hz
;
47 /* Functions call declaration */
48 void cadence_qspi_apb_controller_init(struct cadence_spi_platdata
*plat
);
49 void cadence_qspi_apb_controller_enable(void *reg_base_addr
);
50 void cadence_qspi_apb_controller_disable(void *reg_base_addr
);
52 int cadence_qspi_apb_command_read(void *reg_base_addr
,
53 unsigned int cmdlen
, const u8
*cmdbuf
, unsigned int rxlen
, u8
*rxbuf
);
54 int cadence_qspi_apb_command_write(void *reg_base_addr
,
55 unsigned int cmdlen
, const u8
*cmdbuf
,
56 unsigned int txlen
, const u8
*txbuf
);
58 int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata
*plat
,
59 unsigned int cmdlen
, unsigned int rx_width
, const u8
*cmdbuf
);
60 int cadence_qspi_apb_indirect_read_execute(struct cadence_spi_platdata
*plat
,
61 unsigned int rxlen
, u8
*rxbuf
);
62 int cadence_qspi_apb_indirect_write_setup(struct cadence_spi_platdata
*plat
,
63 unsigned int cmdlen
, const u8
*cmdbuf
);
64 int cadence_qspi_apb_indirect_write_execute(struct cadence_spi_platdata
*plat
,
65 unsigned int txlen
, const u8
*txbuf
);
67 void cadence_qspi_apb_chipselect(void *reg_base
,
68 unsigned int chip_select
, unsigned int decoder_enable
);
69 void cadence_qspi_apb_set_clk_mode(void *reg_base
, uint mode
);
70 void cadence_qspi_apb_config_baudrate_div(void *reg_base
,
71 unsigned int ref_clk_hz
, unsigned int sclk_hz
);
72 void cadence_qspi_apb_delay(void *reg_base
,
73 unsigned int ref_clk
, unsigned int sclk_hz
,
74 unsigned int tshsl_ns
, unsigned int tsd2d_ns
,
75 unsigned int tchsh_ns
, unsigned int tslch_ns
);
76 void cadence_qspi_apb_enter_xip(void *reg_base
, char xip_dummy
);
77 void cadence_qspi_apb_readdata_capture(void *reg_base
,
78 unsigned int bypass
, unsigned int delay
);
80 #endif /* __CADENCE_QSPI_H__ */