Merge branch 'master' of git://www.denx.de/git/u-boot-socfpga

[oweals/u-boot.git] / drivers / mtd / spi / sf_probe.c

diff --git a/drivers/mtd/spi/sf_probe.c b/drivers/mtd/spi/sf_probe.c
index d19138d9071d1365b080610bac46e649691aa84c..201471c392c60897afc403d098898851e5bf5e38 100644 (file)
--- a/drivers/mtd/spi/sf_probe.c
+++ b/drivers/mtd/spi/sf_probe.c
@@ -132,6 +132,9 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
        flash->name = params->name;
        flash->memory_map = spi->memory_map;
        flash->dual_flash = flash->spi->option;
+#ifdef CONFIG_DM_SPI_FLASH
+       flash->flags = params->flags;
+#endif
 
        /* Assign spi_flash ops */
 #ifndef CONFIG_DM_SPI_FLASH
@@ -184,6 +187,9 @@ static int spi_flash_validate_params(struct spi_slave *spi, u8 *idcode,
                flash->erase_size = flash->sector_size;
        }
 
+       /* Now erase size becomes valid sector size */
+       flash->sector_size = flash->erase_size;
+
        /* Look for the fastest read cmd */
        cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx);
        if (cmd) {
@@ -288,34 +294,6 @@ int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
 }
 #endif /* CONFIG_OF_CONTROL */
 
-#ifdef CONFIG_SYS_SPI_ST_ENABLE_WP_PIN
-/* enable the W#/Vpp signal to disable writing to the status register */
-static int spi_enable_wp_pin(struct spi_flash *flash)
-{
-       u8 status;
-       int ret;
-
-       ret = spi_flash_cmd_read_status(flash, &status);
-       if (ret < 0)
-               return ret;
-
-       ret = spi_flash_cmd_write_status(flash, STATUS_SRWD);
-       if (ret < 0)
-               return ret;
-
-       ret = spi_flash_cmd_write_disable(flash);
-       if (ret < 0)
-               return ret;
-
-       return 0;
-}
-#else
-static int spi_enable_wp_pin(struct spi_flash *flash)
-{
-       return 0;
-}
-#endif
-
 /**
  * spi_flash_probe_slave() - Probe for a SPI flash device on a bus
  *
@@ -394,8 +372,6 @@ int spi_flash_probe_slave(struct spi_slave *spi, struct spi_flash *flash)
                puts(" Full access #define CONFIG_SPI_FLASH_BAR\n");
        }
 #endif
-       if (spi_enable_wp_pin(flash))
-               puts("Enable WP pin failed\n");
 
        /* Release spi bus */
        spi_release_bus(spi);
@@ -434,6 +410,8 @@ struct spi_flash *spi_flash_probe(unsigned int busnum, unsigned int cs,
        struct spi_slave *bus;
 
        bus = spi_setup_slave(busnum, cs, max_hz, spi_mode);
+       if (!bus)
+               return NULL;
        return spi_flash_probe_tail(bus);
 }
 
@@ -444,6 +422,8 @@ struct spi_flash *spi_flash_probe_fdt(const void *blob, int slave_node,
        struct spi_slave *bus;
 
        bus = spi_setup_slave_fdt(blob, slave_node, spi_node);
+       if (!bus)
+               return NULL;
        return spi_flash_probe_tail(bus);
 }
 #endif
@@ -469,6 +449,15 @@ int spi_flash_std_write(struct udevice *dev, u32 offset, size_t len,
 {
        struct spi_flash *flash = dev_get_uclass_priv(dev);
 
+#if defined(CONFIG_SPI_FLASH_SST)
+       if (flash->flags & SST_WR) {
+               if (flash->spi->op_mode_tx & SPI_OPM_TX_BP)
+                       return sst_write_bp(flash, offset, len, buf);
+               else
+                       return sst_write_wp(flash, offset, len, buf);
+       }
+#endif
+
        return spi_flash_cmd_write_ops(flash, offset, len, buf);
 }