IF_TYPE_SD,
IF_TYPE_SATA,
IF_TYPE_HOST,
+ IF_TYPE_SYSTEMACE,
IF_TYPE_COUNT, /* Number of interface types */
};
char product[20+1]; /* IDE Serial no, SCSI product */
char revision[8+1]; /* firmware revision */
#ifdef CONFIG_BLK
+ /*
+ * For now we have a few functions which take struct blk_desc as a
+ * parameter. This field allows them to look up the associated
+ * device. Once these functions are removed we can drop this field.
+ */
struct udevice *bdev;
#else
unsigned long (*block_read)(struct blk_desc *block_dev,
*/
unsigned long (*erase)(struct udevice *dev, lbaint_t start,
lbaint_t blkcnt);
+
+ /**
+ * select_hwpart() - select a particular hardware partition
+ *
+ * Some devices (e.g. MMC) can support partitioning at the hardware
+ * level. This is quite separate from the normal idea of
+ * software-based partitions. MMC hardware partitions must be
+ * explicitly selected. Once selected only the region of the device
+ * covered by that partition is accessible.
+ *
+ * The MMC standard provides for two boot partitions (numbered 1 and 2),
+ * rpmb (3), and up to 4 addition general-purpose partitions (4-7).
+ *
+ * @desc: Block device to update
+ * @hwpart: Hardware partition number to select. 0 means the raw
+ * device, 1 is the first partition, 2 is the second, etc.
+ * @return 0 if OK, -ve on error
+ */
+ int (*select_hwpart)(struct udevice *dev, int hwpart);
};
#define blk_get_ops(dev) ((struct blk_ops *)(dev)->driver->ops)
* @drv_name: Driver name to use for the block device
* @name: Name for the device
* @if_type: Interface type (enum if_type_t)
- * @devnum: Device number, specific to the interface type
+ * @devnum: Device number, specific to the interface type, or -1 to
+ * allocate the next available number
* @blksz: Block size of the device in bytes (typically 512)
* @size: Total size of the device in bytes
* @devp: the new device (which has not been probed)
const char *name, int if_type, int devnum, int blksz,
lbaint_t size, struct udevice **devp);
+/**
+ * blk_create_devicef() - Create a new named block device
+ *
+ * @parent: Parent of the new device
+ * @drv_name: Driver name to use for the block device
+ * @name: Name for the device (parent name is prepended)
+ * @if_type: Interface type (enum if_type_t)
+ * @devnum: Device number, specific to the interface type, or -1 to
+ * allocate the next available number
+ * @blksz: Block size of the device in bytes (typically 512)
+ * @size: Total size of the device in bytes
+ * @devp: the new device (which has not been probed)
+ */
+int blk_create_devicef(struct udevice *parent, const char *drv_name,
+ const char *name, int if_type, int devnum, int blksz,
+ lbaint_t size, struct udevice **devp);
+
/**
* blk_prepare_device() - Prepare a block device for use
*
*/
int blk_unbind_all(int if_type);
+/**
+ * blk_find_max_devnum() - find the maximum device number for an interface type
+ *
+ * Finds the last allocated device number for an interface type @if_type. The
+ * next number is safe to use for a newly allocated device.
+ *
+ * @if_type: Interface type to scan
+ * @return maximum device number found, or -ENODEV if none, or other -ve on
+ * error
+ */
+int blk_find_max_devnum(enum if_type if_type);
+
+/**
+ * blk_select_hwpart() - select a hardware partition
+ *
+ * Select a hardware partition if the device supports it (typically MMC does)
+ *
+ * @dev: Device to update
+ * @hwpart: Partition number to select
+ * @return 0 if OK, -ve on error
+ */
+int blk_select_hwpart(struct udevice *dev, int hwpart);
+
#else
#include <errno.h>
/*