/* * Copyright (c) 2006-2019, RT-Thread Development Team * * SPDX-License-Identifier: Apache-2.0 * * Change Logs: * Date Author Notes * 2019-07-29 zdzn first version */ #ifndef __DRV_SPI_H__ #define __DRV_SPI_H__ #include #include #include "bcm283x.h" #include #include #include "raspi.h" #define SPI0_BASE_ADDR (PER_BASE + BCM283X_SPI0_BASE) #define SPI_CORE_CLK 250000000U #define SPI_CS 0x00 #define SPI_CS_LEN_LONG (1 << 25) #define SPI_CS_DMA_LEN (1 << 24) #define SPI_CS_CSPOL2 (1 << 23) #define SPI_CS_CSPOL1 (1 << 22) #define SPI_CS_CSPOL0 (1 << 21) #define SPI_CS_RXF (1 << 20) #define SPI_CS_RXR (1 << 19) #define SPI_CS_TXD (1 << 18) #define SPI_CS_RXD (1 << 17) #define SPI_CS_DONE (1 << 16) #define SPI_CS_LEN (1 << 13) #define SPI_CS_REN (1 << 12) #define SPI_CS_ADCS (1 << 11) #define SPI_CS_INTR (1 << 10) #define SPI_CS_INTD (1 << 9) #define SPI_CS_DMAEN (1 << 8) #define SPI_CS_TA (1 << 7) #define SPI_CS_CSPOL (1 << 6) #define SPI_CS_CLEAR_RXFIFO (1 << 5) #define SPI_CS_CLEAR_TXFIFO (1 << 4) #define SPI_CS_CPOL (1 << 3) #define SPI_CS_CPHA (1 << 2) #define SPI_CS_MASK 0x3 #define SPI_FIFO 0x04 #define SPI_CLK 0x08 #define SPI_CLK_MASK 0xffff #define SPI_DLEN 0x0c #define SPI_DLEN_MASK 0xffff #define SPI_LTOH 0x10 #define SPI_LTOH_MASK 0xf #define SPI_DC 0x14 #define SPI_DC_RPANIC_SHIFT 24 #define SPI_DC_RPANIC_MASK (0xff << SPI_DC_RPANIC_SHIFT) #define SPI_DC_RDREQ_SHIFT 16 #define SPI_DC_RDREQ_MASK (0xff << SPI_DC_RDREQ_SHIFT) #define SPI_DC_TPANIC_SHIFT 8 #define SPI_DC_TPANIC_MASK (0xff << SPI_DC_TPANIC_SHIFT) #define SPI_DC_TDREQ_SHIFT 0 #define SPI_DC_TDREQ_MASK 0xff int rt_hw_spi_bus_init(void); #endif