soft_spi: move to drivers/spi

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

2 files changed, 0 insertions, 194 deletions

diff --git a/common/Makefile b/common/Makefile
index faeac86..3e4829f 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -137,7 +137,6 @@ COBJS-$(CONFIG_BITBANGMII) += miiphybb.o
 COBJS-y += miiphyutil.o
 COBJS-y += s_record.o
 COBJS-y += serial.o
-COBJS-$(CONFIG_SOFT_SPI) += soft_spi.o
 ifdef CONFIG_CMD_USB
 COBJS-y += usb.o
 COBJS-$(CONFIG_USB_STORAGE) += usb_storage.o
diff --git a/common/soft_spi.c b/common/soft_spi.c
deleted file mode 100644
index 25b589a..0000000
--- a/common/soft_spi.c
+++ /dev/null
@@ -1,193 +0,0 @@
-/*
- * (C) Copyright 2002
- * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
- *
- * Influenced by code from:
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
- */
-
-#include <common.h>
-#include <spi.h>
-
-#include <malloc.h>
-
-/*-----------------------------------------------------------------------
- * Definitions
- */
-
-#ifdef DEBUG_SPI
-#define PRINTD(fmt,args...)	printf (fmt ,##args)
-#else
-#define PRINTD(fmt,args...)
-#endif
-
-struct soft_spi_slave {
-	struct spi_slave slave;
-	unsigned int mode;
-};
-
-static inline struct soft_spi_slave *to_soft_spi(struct spi_slave *slave)
-{
-	return container_of(slave, struct soft_spi_slave, slave);
-}
-
-/*=====================================================================*/
-/*                         Public Functions                            */
-/*=====================================================================*/
-
-/*-----------------------------------------------------------------------
- * Initialization
- */
-void spi_init (void)
-{
-#ifdef	SPI_INIT
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-
-	SPI_INIT;
-#endif
-}
-
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
-		unsigned int max_hz, unsigned int mode)
-{
-	struct soft_spi_slave *ss;
-
-	if (!spi_cs_is_valid(bus, cs))
-		return NULL;
-
-	ss = malloc(sizeof(struct soft_spi_slave));
-	if (!ss)
-		return NULL;
-
-	ss->slave.bus = bus;
-	ss->slave.cs = cs;
-	ss->mode = mode;
-
-	/* TODO: Use max_hz to limit the SCK rate */
-
-	return &ss->slave;
-}
-
-void spi_free_slave(struct spi_slave *slave)
-{
-	struct soft_spi_slave *ss = to_soft_spi(slave);
-
-	free(ss);
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
-#ifdef CFG_IMMR
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
-	struct soft_spi_slave *ss = to_soft_spi(slave);
-
-	/*
-	 * Make sure the SPI clock is in idle state as defined for
-	 * this slave.
-	 */
-	if (ss->mode & SPI_CPOL)
-		SPI_SCL(1);
-	else
-		SPI_SCL(0);
-
-	return 0;
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
-	/* Nothing to do */
-}
-
-/*-----------------------------------------------------------------------
- * SPI transfer
- *
- * This writes "bitlen" bits out the SPI MOSI port and simultaneously clocks
- * "bitlen" bits in the SPI MISO port.  That's just the way SPI works.
- *
- * The source of the outgoing bits is the "dout" parameter and the
- * destination of the input bits is the "din" parameter.  Note that "dout"
- * and "din" can point to the same memory location, in which case the
- * input data overwrites the output data (since both are buffered by
- * temporary variables, this is OK).
- */
-int  spi_xfer(struct spi_slave *slave, unsigned int bitlen,
-		const void *dout, void *din, unsigned long flags)
-{
-#ifdef CFG_IMMR
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
-	struct soft_spi_slave *ss = to_soft_spi(slave);
-	uchar		tmpdin  = 0;
-	uchar		tmpdout = 0;
-	const u8	*txd = dout;
-	u8		*rxd = din;
-	int		cpol = ss->mode & SPI_CPOL;
-	int		cpha = ss->mode & SPI_CPHA;
-	unsigned int	j;
-
-	PRINTD("spi_xfer: slave %u:%u dout %08X din %08X bitlen %u\n",
-		slave->bus, slave->cs, *(uint *)txd, *(uint *)rxd, bitlen);
-
-	if (flags & SPI_XFER_BEGIN)
-		spi_cs_activate(slave);
-
-	for(j = 0; j < bitlen; j++) {
-		/*
-		 * Check if it is time to work on a new byte.
-		 */
-		if((j % 8) == 0) {
-			tmpdout = *txd++;
-			if(j != 0) {
-				*rxd++ = tmpdin;
-			}
-			tmpdin  = 0;
-		}
-
-		if (!cpha)
-			SPI_SCL(!cpol);
-		SPI_SDA(tmpdout & 0x80);
-		SPI_DELAY;
-		if (cpha)
-			SPI_SCL(!cpol);
-		else
-			SPI_SCL(cpol);
-		tmpdin	<<= 1;
-		tmpdin	|= SPI_READ;
-		tmpdout	<<= 1;
-		SPI_DELAY;
-		if (cpha)
-			SPI_SCL(cpol);
-	}
-	/*
-	 * If the number of bits isn't a multiple of 8, shift the last
-	 * bits over to left-justify them.  Then store the last byte
-	 * read in.
-	 */
-	if((bitlen % 8) != 0)
-		tmpdin <<= 8 - (bitlen % 8);
-	*rxd++ = tmpdin;
-
-	if (flags & SPI_XFER_END)
-		spi_cs_deactivate(slave);
-
-	return(0);
-}