| Yoshihiro Shimoda | 65bd9b4 | 2011-01-31 16:50:43 +0900 | [diff] [blame] | 1 | /* |
| 2 | * SH SPI driver |
| 3 | * |
| 4 | * Copyright (C) 2011 Renesas Solutions Corp. |
| 5 | * |
| Tom Rini | e237880 | 2016-01-14 22:05:13 -0500 | [diff] [blame] | 6 | * SPDX-License-Identifier: GPL-2.0 |
| Yoshihiro Shimoda | 65bd9b4 | 2011-01-31 16:50:43 +0900 | [diff] [blame] | 7 | */ |
| 8 | |
| 9 | #ifndef __SH_SPI_H__ |
| 10 | #define __SH_SPI_H__ |
| 11 | |
| 12 | #include <spi.h> |
| 13 | |
| 14 | struct sh_spi_regs { |
| 15 | unsigned long tbr_rbr; |
| 16 | unsigned long resv1; |
| 17 | unsigned long cr1; |
| 18 | unsigned long resv2; |
| 19 | unsigned long cr2; |
| 20 | unsigned long resv3; |
| 21 | unsigned long cr3; |
| 22 | unsigned long resv4; |
| 23 | unsigned long cr4; |
| 24 | }; |
| 25 | |
| 26 | /* CR1 */ |
| 27 | #define SH_SPI_TBE 0x80 |
| 28 | #define SH_SPI_TBF 0x40 |
| 29 | #define SH_SPI_RBE 0x20 |
| 30 | #define SH_SPI_RBF 0x10 |
| 31 | #define SH_SPI_PFONRD 0x08 |
| 32 | #define SH_SPI_SSDB 0x04 |
| 33 | #define SH_SPI_SSD 0x02 |
| 34 | #define SH_SPI_SSA 0x01 |
| 35 | |
| 36 | /* CR2 */ |
| 37 | #define SH_SPI_RSTF 0x80 |
| 38 | #define SH_SPI_LOOPBK 0x40 |
| 39 | #define SH_SPI_CPOL 0x20 |
| 40 | #define SH_SPI_CPHA 0x10 |
| 41 | #define SH_SPI_L1M0 0x08 |
| 42 | |
| 43 | /* CR3 */ |
| 44 | #define SH_SPI_MAX_BYTE 0xFF |
| 45 | |
| 46 | /* CR4 */ |
| 47 | #define SH_SPI_TBEI 0x80 |
| 48 | #define SH_SPI_TBFI 0x40 |
| 49 | #define SH_SPI_RBEI 0x20 |
| 50 | #define SH_SPI_RBFI 0x10 |
| Yoshihiro Shimoda | 41153eb | 2012-03-05 19:27:13 +0000 | [diff] [blame] | 51 | #define SH_SPI_SSS1 0x08 |
| Yoshihiro Shimoda | 65bd9b4 | 2011-01-31 16:50:43 +0900 | [diff] [blame] | 52 | #define SH_SPI_WPABRT 0x04 |
| Yoshihiro Shimoda | 41153eb | 2012-03-05 19:27:13 +0000 | [diff] [blame] | 53 | #define SH_SPI_SSS0 0x01 |
| Yoshihiro Shimoda | 65bd9b4 | 2011-01-31 16:50:43 +0900 | [diff] [blame] | 54 | |
| 55 | #define SH_SPI_FIFO_SIZE 32 |
| Yoshihiro Shimoda | 41153eb | 2012-03-05 19:27:13 +0000 | [diff] [blame] | 56 | #define SH_SPI_NUM_CS 4 |
| Yoshihiro Shimoda | 65bd9b4 | 2011-01-31 16:50:43 +0900 | [diff] [blame] | 57 | |
| 58 | struct sh_spi { |
| 59 | struct spi_slave slave; |
| 60 | struct sh_spi_regs *regs; |
| 61 | }; |
| 62 | |
| 63 | static inline struct sh_spi *to_sh_spi(struct spi_slave *slave) |
| 64 | { |
| 65 | return container_of(slave, struct sh_spi, slave); |
| 66 | } |
| 67 | |
| 68 | #endif |