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https://github.com/AsahiLinux/u-boot
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90a2f71711
sram size could be different on different socs, e.g. on stv0991 it is 256 while on altera platform it is 128. It is better to receive it from device tree. Signed-off-by: Vikas Manocha <vikas.manocha@st.com> Tested-by: Stefan Roese <sr@denx.de> Reviewed-by: Jagannadh Teki <jteki@openedev.com>
77 lines
2.3 KiB
C
77 lines
2.3 KiB
C
/*
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* Copyright (C) 2012
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* Altera Corporation <www.altera.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __CADENCE_QSPI_H__
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#define __CADENCE_QSPI_H__
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#define CQSPI_IS_ADDR(cmd_len) (cmd_len > 1 ? 1 : 0)
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#define CQSPI_NO_DECODER_MAX_CS 4
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#define CQSPI_DECODER_MAX_CS 16
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#define CQSPI_READ_CAPTURE_MAX_DELAY 16
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struct cadence_spi_platdata {
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unsigned int max_hz;
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void *regbase;
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void *ahbbase;
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u32 page_size;
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u32 block_size;
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u32 tshsl_ns;
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u32 tsd2d_ns;
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u32 tchsh_ns;
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u32 tslch_ns;
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u32 sram_size;
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};
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struct cadence_spi_priv {
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void *regbase;
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void *ahbbase;
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size_t cmd_len;
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u8 cmd_buf[32];
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size_t data_len;
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int qspi_is_init;
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unsigned int qspi_calibrated_hz;
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unsigned int qspi_calibrated_cs;
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};
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/* Functions call declaration */
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void cadence_qspi_apb_controller_init(struct cadence_spi_platdata *plat);
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void cadence_qspi_apb_controller_enable(void *reg_base_addr);
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void cadence_qspi_apb_controller_disable(void *reg_base_addr);
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int cadence_qspi_apb_command_read(void *reg_base_addr,
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unsigned int cmdlen, const u8 *cmdbuf, unsigned int rxlen, u8 *rxbuf);
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int cadence_qspi_apb_command_write(void *reg_base_addr,
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unsigned int cmdlen, const u8 *cmdbuf,
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unsigned int txlen, const u8 *txbuf);
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int cadence_qspi_apb_indirect_read_setup(struct cadence_spi_platdata *plat,
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unsigned int cmdlen, const u8 *cmdbuf);
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int cadence_qspi_apb_indirect_read_execute(struct cadence_spi_platdata *plat,
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unsigned int rxlen, u8 *rxbuf);
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int cadence_qspi_apb_indirect_write_setup(struct cadence_spi_platdata *plat,
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unsigned int cmdlen, const u8 *cmdbuf);
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int cadence_qspi_apb_indirect_write_execute(struct cadence_spi_platdata *plat,
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unsigned int txlen, const u8 *txbuf);
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void cadence_qspi_apb_chipselect(void *reg_base,
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unsigned int chip_select, unsigned int decoder_enable);
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void cadence_qspi_apb_set_clk_mode(void *reg_base_addr,
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unsigned int clk_pol, unsigned int clk_pha);
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void cadence_qspi_apb_config_baudrate_div(void *reg_base,
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unsigned int ref_clk_hz, unsigned int sclk_hz);
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void cadence_qspi_apb_delay(void *reg_base,
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unsigned int ref_clk, unsigned int sclk_hz,
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unsigned int tshsl_ns, unsigned int tsd2d_ns,
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unsigned int tchsh_ns, unsigned int tslch_ns);
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void cadence_qspi_apb_enter_xip(void *reg_base, char xip_dummy);
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void cadence_qspi_apb_readdata_capture(void *reg_base,
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unsigned int bypass, unsigned int delay);
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#endif /* __CADENCE_QSPI_H__ */
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