spi: exynos: Support word transfers

[karo-tx-uboot.git] / drivers / spi / cf_spi.c

diff --git a/drivers/spi/cf_spi.c b/drivers/spi/cf_spi.c
index 722aafc73c35ab1d733338aa3df548d374e50a7f..879a809cba491dbb2285b75b8b9bb6836ab06adf 100644 (file)
--- a/drivers/spi/cf_spi.c
+++ b/drivers/spi/cf_spi.c
@@ -6,23 +6,7 @@
  * Copyright (C) 2004-2009 Freescale Semiconductor, Inc.
  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
  *
- * 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
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <common.h>
@@ -49,6 +33,14 @@ extern void cfspi_release_bus(uint bus, uint cs);
 
 DECLARE_GLOBAL_DATA_PTR;
 
+#ifndef CONFIG_SPI_IDLE_VAL
+#if defined(CONFIG_SPI_MMC)
+#define CONFIG_SPI_IDLE_VAL    0xFFFF
+#else
+#define CONFIG_SPI_IDLE_VAL    0x0
+#endif
+#endif
+
 #if defined(CONFIG_CF_DSPI)
 /* DSPI specific mode */
 #define SPI_MODE_MOD   0x00200000
@@ -145,7 +137,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout,
                        }
 
                        if (din != NULL) {
-                               cfspi_tx(ctrl, 0);
+                               cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL);
                                if (cfslave->charbit == 16)
                                        *spi_rd16++ = cfspi_rx();
                                else
@@ -169,7 +161,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout,
                }
 
                if (din != NULL) {
-                       cfspi_tx(ctrl, 0);
+                       cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL);
                        if (cfslave->charbit == 16)
                                *spi_rd16 = cfspi_rx();
                        else
@@ -177,7 +169,7 @@ int cfspi_xfer(struct spi_slave *slave, uint bitlen, const void *dout,
                }
        } else {
                /* dummy read */
-               cfspi_tx(ctrl, 0);
+               cfspi_tx(ctrl, CONFIG_SPI_IDLE_VAL);
                cfspi_rx();
        }
 
@@ -322,12 +314,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
        if (!spi_cs_is_valid(bus, cs))
                return NULL;
 
-       cfslave = malloc(sizeof(struct cf_spi_slave));
+       cfslave = spi_alloc_slave(struct cf_spi_slave, bus, cs);
        if (!cfslave)
                return NULL;
 
-       cfslave->slave.bus = bus;
-       cfslave->slave.cs = cs;
        cfslave->baudrate = max_hz;
 
        /* specific setup */