tegra: add SPI SLINK driver

[karo-tx-uboot.git] / drivers / spi / mpc8xxx_spi.c

diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c
index 136fb50052f1902c1cc285f0dfe46b880a3cbe8e..4e46041dfff5df76c98561d161daa4a13790acd5 100644 (file)
--- a/drivers/spi/mpc8xxx_spi.c
+++ b/drivers/spi/mpc8xxx_spi.c
@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2006 Ben Warren, Qstreams Networks Inc.
- * With help from the common/soft_spi and cpu/mpc8260 drivers
+ * With help from the common/soft_spi and arch/powerpc/cpu/mpc8260 drivers
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -22,7 +22,6 @@
  */
 
 #include <common.h>
-#if defined(CONFIG_MPC8XXX_SPI) && defined(CONFIG_HARD_SPI)
 
 #include <malloc.h>
 #include <spi.h>
@@ -68,7 +67,7 @@ void spi_free_slave(struct spi_slave *slave)
 
 void spi_init(void)
 {
-       volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi;
+       volatile spi8xxx_t *spi = &((immap_t *) (CONFIG_SYS_IMMR))->spi;
 
        /*
         * SPI pins on the MPC83xx are not muxed, so all we do is initialize
@@ -95,7 +94,7 @@ void spi_release_bus(struct spi_slave *slave)
 int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
                void *din, unsigned long flags)
 {
-       volatile spi8xxx_t *spi = &((immap_t *) (CFG_IMMR))->spi;
+       volatile spi8xxx_t *spi = &((immap_t *) (CONFIG_SYS_IMMR))->spi;
        unsigned int tmpdout, tmpdin, event;
        int numBlks = bitlen / 32 + (bitlen % 32 ? 1 : 0);
        int tm, isRead = 0;
@@ -125,6 +124,8 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
                 * len > 16               0
                 */
 
+               spi->mode &= ~SPI_MODE_EN;
+
                if (bitlen <= 16) {
                        if (bitlen <= 4)
                                spi->mode = (spi->mode & 0xff0fffff) |
@@ -139,6 +140,8 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
                        dout += 4;
                }
 
+               spi->mode |= SPI_MODE_EN;
+
                spi->tx = tmpdout;      /* Write the data out */
                debug("*** spi_xfer: ... %08x written\n", tmpdout);
 
@@ -180,4 +183,3 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
 
        return 0;
 }
-#endif                         /* CONFIG_HARD_SPI */