1 /* 2 * SD-SPI Protocol Standard 3 * 4 * Copyright (C) 1999-2019, Broadcom. 5 * 6 * Unless you and Broadcom execute a separate written software license 7 * agreement governing use of this software, this software is licensed to you 8 * under the terms of the GNU General Public License version 2 (the "GPL"), 9 * available at http://www.broadcom.com/licenses/GPLv2.php, with the 10 * following added to such license: 11 * 12 * As a special exception, the copyright holders of this software give you 13 * permission to link this software with independent modules, and to copy and 14 * distribute the resulting executable under terms of your choice, provided that 15 * you also meet, for each linked independent module, the terms and conditions 16 * of the license of that module. An independent module is a module which is 17 * not derived from this software. The special exception does not apply to any 18 * modifications of the software. 19 * 20 * Notwithstanding the above, under no circumstances may you combine this 21 * software in any way with any other Broadcom software provided under a license 22 * other than the GPL, without Broadcom's express prior written consent. 23 * 24 * 25 * <<Broadcom-WL-IPTag/Open:>> 26 * 27 * $Id: sdspi.h 700076 2017-05-17 14:42:22Z $ 28 */ 29 #ifndef _SD_SPI_H 30 #define _SD_SPI_H 31 32 #define SPI_START_M BITFIELD_MASK(1) /* Bit [31] - Start Bit */ 33 #define SPI_START_S 31 34 #define SPI_DIR_M BITFIELD_MASK(1) /* Bit [30] - Direction */ 35 #define SPI_DIR_S 30 36 #define SPI_CMD_INDEX_M BITFIELD_MASK(6) /* Bits [29:24] - Command number */ 37 #define SPI_CMD_INDEX_S 24 38 #define SPI_RW_M BITFIELD_MASK(1) /* Bit [23] - Read=0, Write=1 */ 39 #define SPI_RW_S 23 40 #define SPI_FUNC_M BITFIELD_MASK(3) /* Bits [22:20] - Function Number */ 41 #define SPI_FUNC_S 20 42 #define SPI_RAW_M BITFIELD_MASK(1) /* Bit [19] - Read After Wr */ 43 #define SPI_RAW_S 19 44 #define SPI_STUFF_M BITFIELD_MASK(1) /* Bit [18] - Stuff bit */ 45 #define SPI_STUFF_S 18 46 #define SPI_BLKMODE_M BITFIELD_MASK(1) /* Bit [19] - Blockmode 1=blk */ 47 #define SPI_BLKMODE_S 19 48 #define SPI_OPCODE_M BITFIELD_MASK(1) /* Bit [18] - OP Code */ 49 #define SPI_OPCODE_S 18 50 #define SPI_ADDR_M BITFIELD_MASK(17) /* Bits [17:1] - Address */ 51 #define SPI_ADDR_S 1 52 #define SPI_STUFF0_M BITFIELD_MASK(1) /* Bit [0] - Stuff bit */ 53 #define SPI_STUFF0_S 0 54 55 #define SPI_RSP_START_M BITFIELD_MASK(1) /* Bit [7] - Start Bit (always 0) \ 56 */ 57 #define SPI_RSP_START_S 7 58 #define SPI_RSP_PARAM_ERR_M BITFIELD_MASK(1) /* Bit [6] - Parameter Error \ 59 */ 60 #define SPI_RSP_PARAM_ERR_S 6 61 #define SPI_RSP_RFU5_M BITFIELD_MASK(1) /* Bit [5] - RFU (Always 0) */ 62 #define SPI_RSP_RFU5_S 5 63 #define SPI_RSP_FUNC_ERR_M \ 64 BITFIELD_MASK(1) /* Bit [4] - Function number error */ 65 #define SPI_RSP_FUNC_ERR_S 4 66 #define SPI_RSP_CRC_ERR_M BITFIELD_MASK(1) /* Bit [3] - COM CRC Error */ 67 #define SPI_RSP_CRC_ERR_S 3 68 #define SPI_RSP_ILL_CMD_M \ 69 BITFIELD_MASK(1) /* Bit [2] - Illegal Command error */ 70 #define SPI_RSP_ILL_CMD_S 2 71 #define SPI_RSP_RFU1_M BITFIELD_MASK(1) /* Bit [1] - RFU (Always 0) */ 72 #define SPI_RSP_RFU1_S 1 73 #define SPI_RSP_IDLE_M BITFIELD_MASK(1) /* Bit [0] - In idle state */ 74 #define SPI_RSP_IDLE_S 0 75 76 /* SD-SPI Protocol Definitions */ 77 #define SDSPI_COMMAND_LEN 6 /* Number of bytes in an SD command */ 78 #define SDSPI_START_BLOCK 0xFE /* SD Start Block Token */ 79 #define SDSPI_IDLE_PAD 0xFF /* SD-SPI idle value for MOSI */ 80 #define SDSPI_START_BIT_MASK 0x80 81 82 #endif /* _SD_SPI_H */ 83