/* SPDX-License-Identifier: GPL-2.0 */ | |
/* | |
* SH SPI driver | |
* | |
* Copyright (C) 2011 Renesas Solutions Corp. | |
*/ | |
#ifndef __SH_SPI_H__ | |
#define __SH_SPI_H__ | |
#include <spi.h> | |
struct sh_spi_regs { | |
unsigned long tbr_rbr; | |
unsigned long resv1; | |
unsigned long cr1; | |
unsigned long resv2; | |
unsigned long cr2; | |
unsigned long resv3; | |
unsigned long cr3; | |
unsigned long resv4; | |
unsigned long cr4; | |
}; | |
/* CR1 */ | |
#define SH_SPI_TBE 0x80 | |
#define SH_SPI_TBF 0x40 | |
#define SH_SPI_RBE 0x20 | |
#define SH_SPI_RBF 0x10 | |
#define SH_SPI_PFONRD 0x08 | |
#define SH_SPI_SSDB 0x04 | |
#define SH_SPI_SSD 0x02 | |
#define SH_SPI_SSA 0x01 | |
/* CR2 */ | |
#define SH_SPI_RSTF 0x80 | |
#define SH_SPI_LOOPBK 0x40 | |
#define SH_SPI_CPOL 0x20 | |
#define SH_SPI_CPHA 0x10 | |
#define SH_SPI_L1M0 0x08 | |
/* CR3 */ | |
#define SH_SPI_MAX_BYTE 0xFF | |
/* CR4 */ | |
#define SH_SPI_TBEI 0x80 | |
#define SH_SPI_TBFI 0x40 | |
#define SH_SPI_RBEI 0x20 | |
#define SH_SPI_RBFI 0x10 | |
#define SH_SPI_SSS1 0x08 | |
#define SH_SPI_WPABRT 0x04 | |
#define SH_SPI_SSS0 0x01 | |
#define SH_SPI_FIFO_SIZE 32 | |
#define SH_SPI_NUM_CS 4 | |
struct sh_spi { | |
struct spi_slave slave; | |
struct sh_spi_regs *regs; | |
}; | |
static inline struct sh_spi *to_sh_spi(struct spi_slave *slave) | |
{ | |
return container_of(slave, struct sh_spi, slave); | |
} | |
#endif |