u-boot/drivers/spi/davinci_spi.h
Sekhar Nori 8ed5885693 TI DaVinci: Driver for the davinci SPI controller
This adds a driver for the SPI controller found on davinci
based SoCs from Texas Instruments.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2010-02-12 12:31:53 -06:00

102 lines
2.6 KiB
C

/*
* 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_ */