diff options
Diffstat (limited to 'arch/arm/include/asm/arch-lpc2292/spi.h')
| -rw-r--r-- | arch/arm/include/asm/arch-lpc2292/spi.h | 82 | 
1 files changed, 0 insertions, 82 deletions
| diff --git a/arch/arm/include/asm/arch-lpc2292/spi.h b/arch/arm/include/asm/arch-lpc2292/spi.h deleted file mode 100644 index 6ae66e8ba..000000000 --- a/arch/arm/include/asm/arch-lpc2292/spi.h +++ /dev/null @@ -1,82 +0,0 @@ -/* -    This file defines the interface to the lpc22xx SPI module. -    Copyright (C) 2006  Embedded Artists AB (www.embeddedartists.com) - -    This file may be included in software not adhering to the GPL. - -    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 SPI_H -#define SPI_H - -#include <config.h> -#include <common.h> -#include <asm/errno.h> -#include <asm/arch/hardware.h> - -#define SPIF 0x80 - -#define spi_lock() disable_interrupts(); -#define spi_unlock() enable_interrupts(); - -extern unsigned long spi_flags; -extern unsigned char spi_idle; - -int spi_init(void); - -static inline unsigned char spi_read(void) -{ -	unsigned char b; - -	PUT8(S0SPDR, spi_idle); -	while (!(GET8(S0SPSR) & SPIF)); -	b = GET8(S0SPDR); - -	return b; -} - -static inline void spi_write(unsigned char b) -{ -	PUT8(S0SPDR, b); -	while (!(GET8(S0SPSR) & SPIF)); -	GET8(S0SPDR);		/* this will clear the SPIF bit */ -} - -static inline void spi_set_clock(unsigned char clk_value) -{ -	PUT8(S0SPCCR, clk_value); -} - -static inline void spi_set_cfg(unsigned char phase, -			       unsigned char polarity, -			       unsigned char lsbf) -{ -	unsigned char v = 0x20;	/* master bit set */ - -	if (phase) -		v |= 0x08;			/* set phase bit */ -	if (polarity) { -		v |= 0x10;			/* set polarity bit */ -		spi_idle = 0xFF; -	} else { -		spi_idle = 0x00; -	} -	if (lsbf) -		v |= 0x40;			/* set lsbf bit */ - -	PUT8(S0SPCR, v); -} -#endif /* SPI_H */ |