44 lines
932 B
C
44 lines
932 B
C
/*
|
|
* Copyright (c) 2019 Antmicro <www.antmicro.com>
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#ifndef _SPI_LITESPI__H
|
|
#define _SPI_LITESPI__H
|
|
|
|
#include "spi_context.h"
|
|
|
|
#include <zephyr/sys/sys_io.h>
|
|
#include <zephyr/device.h>
|
|
#include <zephyr/drivers/spi.h>
|
|
|
|
#define SPI_BASE_ADDR DT_INST_REG_ADDR(0)
|
|
#define SPI_CONTROL_REG SPI_BASE_ADDR
|
|
#define SPI_STATUS_REG (SPI_BASE_ADDR + 0x08)
|
|
#define SPI_MOSI_DATA_REG (SPI_BASE_ADDR + 0x0c)
|
|
#define SPI_MISO_DATA_REG (SPI_BASE_ADDR + 0x10)
|
|
#define SPI_CS_REG (SPI_BASE_ADDR + 0x14)
|
|
#define SPI_LOOPBACK_REG (SPI_BASE_ADDR + 0x18)
|
|
|
|
#define POSITION_WORD_SIZE 8
|
|
#define SPI_MAX_CS_SIZE 0x100
|
|
#define SPI_WORD_SIZE 8
|
|
|
|
#define SPI_ENABLE 0x1
|
|
|
|
#define SPI_DATA(dev) ((struct spi_litespi_data *) ((dev)->data))
|
|
|
|
/* Structure Declarations */
|
|
|
|
struct spi_litespi_data {
|
|
struct spi_context ctx;
|
|
};
|
|
|
|
struct spi_litespi_cfg {
|
|
uint32_t base;
|
|
uint32_t f_sys;
|
|
};
|
|
|
|
#endif /* _SPI_LITESPI__H */
|