diff options
Diffstat (limited to 'u-boot/drivers/spi/davinci_spi.h')
-rw-r--r-- | u-boot/drivers/spi/davinci_spi.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/u-boot/drivers/spi/davinci_spi.h b/u-boot/drivers/spi/davinci_spi.h new file mode 100644 index 0000000..8d36a42 --- /dev/null +++ b/u-boot/drivers/spi/davinci_spi.h @@ -0,0 +1,101 @@ +/* + * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/ + * + * Register definitions for the DaVinci SPI Controller + * + * 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; either version 2 of + * the License, or (at your option) any later version. + * + * 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#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) + +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_ */ |