| /* | |
| * SH SPI driver | |
| * | |
| * Copyright (C) 2011 Renesas Solutions Corp. | |
| * | |
| * This program is free software; you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation; version 2 of the License. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program; if not, write to the Free Software | |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
| * | |
| */ | |
| #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_WPABRT 0x04 | |
| #define SH_SPI_SSS 0x01 | |
| #define SH_SPI_FIFO_SIZE 32 | |
| 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 |