common: Drop linux/crc8.h

[oweals/u-boot.git] / include / spi.h

diff --git a/include/spi.h b/include/spi.h
index 3f79168df30ab70756725bded35342288824054c..6fbb4336ce381f9fa9a38e72546983102baf1e79 100644 (file)
--- a/include/spi.h
+++ b/include/spi.h
@@ -462,6 +462,19 @@ struct dm_spi_ops {
         *         is invalid, other -ve value on error
         */
        int (*cs_info)(struct udevice *bus, uint cs, struct spi_cs_info *info);
+
+       /**
+        * get_mmap() - Get memory-mapped SPI
+        *
+        * @dev:        The SPI flash slave device
+        * @map_basep:  Returns base memory address for mapped SPI
+        * @map_sizep:  Returns size of mapped SPI
+        * @offsetp:    Returns start offset of SPI flash where the map works
+        *      correctly (offsets before this are not visible)
+        * @return 0 if OK, -EFAULT if memory mapping is not available
+        */
+       int (*get_mmap)(struct udevice *dev, ulong *map_basep,
+                       uint *map_sizep, uint *offsetp);
 };
 
 struct dm_spi_emul_ops {
@@ -650,6 +663,20 @@ void dm_spi_release_bus(struct udevice *dev);
 int dm_spi_xfer(struct udevice *dev, unsigned int bitlen,
                const void *dout, void *din, unsigned long flags);
 
+/**
+ * spi_get_mmap() - Get memory-mapped SPI
+ *
+ * @dev:       SPI slave device to check
+ * @map_basep: Returns base memory address for mapped SPI
+ * @map_sizep: Returns size of mapped SPI
+ * @offsetp:   Returns start offset of SPI flash where the map works
+ *     correctly (offsets before this are not visible)
+ * @return 0 if OK, -ENOSYS if no operation, -EFAULT if memory mapping is not
+ *     available
+ */
+int dm_spi_get_mmap(struct udevice *dev, ulong *map_basep, uint *map_sizep,
+                   uint *offsetp);
+
 /* Access the operations for a SPI device */
 #define spi_get_ops(dev)       ((struct dm_spi_ops *)(dev)->driver->ops)
 #define spi_emul_get_ops(dev)  ((struct dm_spi_emul_ops *)(dev)->driver->ops)