power: pmic: Let PFUZE3000 see all 256 registers

[u-boot] / drivers / spi / mpc8xxx_spi.c

diff --git a/drivers/spi/mpc8xxx_spi.c b/drivers/spi/mpc8xxx_spi.c
index c4b36f06c05cf037b6daaeb2903f7dc8a5b7e7b4..8d6d86d2b0a1728aaf832b321b9e2352b4d72b5f 100644 (file)
--- a/drivers/spi/mpc8xxx_spi.c
+++ b/drivers/spi/mpc8xxx_spi.c
@@ -1,24 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright (c) 2006 Ben Warren, Qstreams Networks Inc.
- * With help from the common/soft_spi and cpu/mpc8260 drivers
- *
- * 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
+ * With help from the common/soft_spi and arch/powerpc/cpu/mpc8260 drivers
  */
 
 #include <common.h>
@@ -45,13 +28,10 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
        if (!spi_cs_is_valid(bus, cs))
                return NULL;
 
-       slave = malloc(sizeof(struct spi_slave));
+       slave = spi_alloc_slave_base(bus, cs);
        if (!slave)
                return NULL;
 
-       slave->bus = bus;
-       slave->cs = cs;
-
        /*
         * TODO: Some of the code in spi_init() should probably move
         * here, or into spi_claim_bus() below.
@@ -74,7 +54,7 @@ void spi_init(void)
         * some registers
         */
        spi->mode = SPI_MODE_REV | SPI_MODE_MS | SPI_MODE_EN;
-       spi->mode = (spi->mode & 0xfff0ffff) | (1 << 16); /* Use SYSCLK / 8
+       spi->mode = (spi->mode & 0xfff0ffff) | BIT(16); /* Use SYSCLK / 8
                                                             (16.67MHz typ.) */
        spi->event = 0xffffffff;        /* Clear all SPI events */
        spi->mask = 0x00000000; /* Mask  all SPI interrupts */
@@ -96,7 +76,7 @@ int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
 {
        volatile spi8xxx_t *spi = &((immap_t *) (CONFIG_SYS_IMMR))->spi;
        unsigned int tmpdout, tmpdin, event;
-       int numBlks = bitlen / 32 + (bitlen % 32 ? 1 : 0);
+       int numBlks = DIV_ROUND_UP(bitlen, 32);
        int tm, isRead = 0;
        unsigned char charSize = 32;
 
@@ -124,13 +104,15 @@ 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) |
-                                           (3 << 20);
+                                           (3 << 20);
                        else
                                spi->mode = (spi->mode & 0xff0fffff) |
-                                           ((bitlen - 1) << 20);
+                                           ((bitlen - 1) << 20);
                } else {
                        spi->mode = (spi->mode & 0xff0fffff);
                        /* Set up the next iteration if sending > 32 bits */
@@ -138,6 +120,8 @@ 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);