diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/spi/davinci_spi.h')
-rw-r--r-- | qemu/roms/u-boot/drivers/spi/davinci_spi.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/spi/davinci_spi.h b/qemu/roms/u-boot/drivers/spi/davinci_spi.h new file mode 100644 index 000000000..d4612d352 --- /dev/null +++ b/qemu/roms/u-boot/drivers/spi/davinci_spi.h @@ -0,0 +1,121 @@ +/* + * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ + * + * Register definitions for the DaVinci SPI Controller + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _DAVINCI_SPI_H_ +#define _DAVINCI_SPI_H_ + +struct davinci_spi_regs { + dv_reg gcr0; /* 0x00 */ + dv_reg gcr1; /* 0x04 */ + dv_reg int0; /* 0x08 */ + dv_reg lvl; /* 0x0c */ + dv_reg flg; /* 0x10 */ + dv_reg pc0; /* 0x14 */ + dv_reg pc1; /* 0x18 */ + dv_reg pc2; /* 0x1c */ + dv_reg pc3; /* 0x20 */ + dv_reg pc4; /* 0x24 */ + dv_reg pc5; /* 0x28 */ + dv_reg rsvd[3]; + dv_reg dat0; /* 0x38 */ + dv_reg dat1; /* 0x3c */ + dv_reg buf; /* 0x40 */ + dv_reg emu; /* 0x44 */ + dv_reg delay; /* 0x48 */ + dv_reg def; /* 0x4c */ + dv_reg fmt0; /* 0x50 */ + dv_reg fmt1; /* 0x54 */ + dv_reg fmt2; /* 0x58 */ + dv_reg fmt3; /* 0x5c */ + dv_reg intvec0; /* 0x60 */ + dv_reg intvec1; /* 0x64 */ +}; + +#define BIT(x) (1 << (x)) + +/* SPIGCR0 */ +#define SPIGCR0_SPIENA_MASK 0x1 +#define SPIGCR0_SPIRST_MASK 0x0 + +/* SPIGCR0 */ +#define SPIGCR1_CLKMOD_MASK BIT(1) +#define SPIGCR1_MASTER_MASK BIT(0) +#define SPIGCR1_SPIENA_MASK BIT(24) + +/* SPIPC0 */ +#define SPIPC0_DIFUN_MASK BIT(11) /* SIMO */ +#define SPIPC0_DOFUN_MASK BIT(10) /* SOMI */ +#define SPIPC0_CLKFUN_MASK BIT(9) /* CLK */ +#define SPIPC0_EN0FUN_MASK BIT(0) + +/* SPIFMT0 */ +#define SPIFMT_SHIFTDIR_SHIFT 20 +#define SPIFMT_POLARITY_SHIFT 17 +#define SPIFMT_PHASE_SHIFT 16 +#define SPIFMT_PRESCALE_SHIFT 8 + +/* SPIDAT1 */ +#define SPIDAT1_CSHOLD_SHIFT 28 +#define SPIDAT1_CSNR_SHIFT 16 + +/* SPIDELAY */ +#define SPI_C2TDELAY_SHIFT 24 +#define SPI_T2CDELAY_SHIFT 16 + +/* SPIBUF */ +#define SPIBUF_RXEMPTY_MASK BIT(31) +#define SPIBUF_TXFULL_MASK BIT(29) + +/* SPIDEF */ +#define SPIDEF_CSDEF0_MASK BIT(0) + +#define SPI0_BUS 0 +#define SPI0_BASE CONFIG_SYS_SPI_BASE +/* + * Define default SPI0_NUM_CS as 1 for existing platforms that uses this + * driver. Platform can configure number of CS using CONFIG_SYS_SPI0_NUM_CS + * if more than one CS is supported and by defining CONFIG_SYS_SPI0. + */ +#ifndef CONFIG_SYS_SPI0 +#define SPI0_NUM_CS 1 +#else +#define SPI0_NUM_CS CONFIG_SYS_SPI0_NUM_CS +#endif + +/* + * define CONFIG_SYS_SPI1 when platform has spi-1 device (bus #1) and + * CONFIG_SYS_SPI1_NUM_CS defines number of CS on this bus + */ +#ifdef CONFIG_SYS_SPI1 +#define SPI1_BUS 1 +#define SPI1_NUM_CS CONFIG_SYS_SPI1_NUM_CS +#define SPI1_BASE CONFIG_SYS_SPI1_BASE +#endif + +/* + * define CONFIG_SYS_SPI2 when platform has spi-2 device (bus #2) and + * CONFIG_SYS_SPI2_NUM_CS defines number of CS on this bus + */ +#ifdef CONFIG_SYS_SPI2 +#define SPI2_BUS 2 +#define SPI2_NUM_CS CONFIG_SYS_SPI2_NUM_CS +#define SPI2_BASE CONFIG_SYS_SPI2_BASE +#endif + +struct davinci_spi_slave { + struct spi_slave slave; + struct davinci_spi_regs *regs; + unsigned int freq; +}; + +static inline struct davinci_spi_slave *to_davinci_spi(struct spi_slave *slave) +{ + return container_of(slave, struct davinci_spi_slave, slave); +} + +#endif /* _DAVINCI_SPI_H_ */ |