dm: Add a new header for block devices

At present block devices are tied up with partitions. But not all block
devices have partitions within them. They are in fact separate concepts.

Create a separate blk.h header file for block devices.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>

3 files changed, 74 insertions, 58 deletions

diff --git a/include/blk.h b/include/blk.h
new file mode 100644
index 00000000000..1e8334c23a4
--- /dev/null
+++ b/include/blk.h
@@ -0,0 +1,71 @@
+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef BLK_H
+#define BLK_H
+
+#ifdef CONFIG_SYS_64BIT_LBA
+typedef uint64_t lbaint_t;
+#define LBAFlength "ll"
+#else
+typedef ulong lbaint_t;
+#define LBAFlength "l"
+#endif
+#define LBAF "%" LBAFlength "x"
+#define LBAFU "%" LBAFlength "u"
+
+/* Interface types: */
+#define IF_TYPE_UNKNOWN		0
+#define IF_TYPE_IDE		1
+#define IF_TYPE_SCSI		2
+#define IF_TYPE_ATAPI		3
+#define IF_TYPE_USB		4
+#define IF_TYPE_DOC		5
+#define IF_TYPE_MMC		6
+#define IF_TYPE_SD		7
+#define IF_TYPE_SATA		8
+#define IF_TYPE_HOST		9
+#define IF_TYPE_MAX		10	/* Max number of IF_TYPE_* supported */
+
+struct blk_desc {
+	int		if_type;	/* type of the interface */
+	int		dev;		/* device number */
+	unsigned char	part_type;	/* partition type */
+	unsigned char	target;		/* target SCSI ID */
+	unsigned char	lun;		/* target LUN */
+	unsigned char	hwpart;		/* HW partition, e.g. for eMMC */
+	unsigned char	type;		/* device type */
+	unsigned char	removable;	/* removable device */
+#ifdef CONFIG_LBA48
+	/* device can use 48bit addr (ATA/ATAPI v7) */
+	unsigned char	lba48;
+#endif
+	lbaint_t	lba;		/* number of blocks */
+	unsigned long	blksz;		/* block size */
+	int		log2blksz;	/* for convenience: log2(blksz) */
+	char		vendor[40+1];	/* IDE model, SCSI Vendor */
+	char		product[20+1];	/* IDE Serial no, SCSI product */
+	char		revision[8+1];	/* firmware revision */
+	unsigned long	(*block_read)(struct blk_desc *block_dev,
+				      lbaint_t start,
+				      lbaint_t blkcnt,
+				      void *buffer);
+	unsigned long	(*block_write)(struct blk_desc *block_dev,
+				       lbaint_t start,
+				       lbaint_t blkcnt,
+				       const void *buffer);
+	unsigned long	(*block_erase)(struct blk_desc *block_dev,
+				       lbaint_t start,
+				       lbaint_t blkcnt);
+	void		*priv;		/* driver private struct pointer */
+};
+
+#define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz))
+#define PAD_TO_BLOCKSIZE(size, blk_desc) \
+	(PAD_SIZE(size, blk_desc->blksz))
+
+#endif
diff --git a/include/ide.h b/include/ide.h
index 24073938507..a4e65cf2a94 100644
--- a/include/ide.h
+++ b/include/ide.h
@@ -8,6 +8,8 @@
 #ifndef	_IDE_H
 #define _IDE_H
 
+#include <blk.h>
+
 #define IDE_BUS(dev)	(dev / (CONFIG_SYS_IDE_MAXDEVICE / CONFIG_SYS_IDE_MAXBUS))
 
 #define	ATA_CURR_BASE(dev)	(CONFIG_SYS_ATA_BASE_ADDR+ide_bus_offset[IDE_BUS(dev)])
@@ -26,16 +28,6 @@ extern ulong ide_bus_offset[];
 void ide_led(uchar led, uchar status);
 #endif /* CONFIG_IDE_LED */
 
-#ifdef CONFIG_SYS_64BIT_LBA
-typedef uint64_t lbaint_t;
-#define LBAFlength "ll"
-#else
-typedef ulong lbaint_t;
-#define LBAFlength "l"
-#endif
-#define LBAF "%" LBAFlength "x"
-#define LBAFU "%" LBAFlength "u"
-
 /*
  * Function Prototypes
  */
diff --git a/include/part.h b/include/part.h
index 140c9b6a45f..25999984df1 100644
--- a/include/part.h
+++ b/include/part.h
@@ -7,61 +7,14 @@
 #ifndef _PART_H
 #define _PART_H
 
+#include <blk.h>
 #include <ide.h>
 
-struct blk_desc {
-	int		if_type;	/* type of the interface */
-	int		dev;		/* device number */
-	unsigned char	part_type;	/* partition type */
-	unsigned char	target;		/* target SCSI ID */
-	unsigned char	lun;		/* target LUN */
-	unsigned char	hwpart;		/* HW partition, e.g. for eMMC */
-	unsigned char	type;		/* device type */
-	unsigned char	removable;	/* removable device */
-#ifdef CONFIG_LBA48
-	unsigned char	lba48;		/* device can use 48bit addr (ATA/ATAPI v7) */
-#endif
-	lbaint_t	lba;		/* number of blocks */
-	unsigned long	blksz;		/* block size */
-	int		log2blksz;	/* for convenience: log2(blksz) */
-	char		vendor [40+1];	/* IDE model, SCSI Vendor */
-	char		product[20+1];	/* IDE Serial no, SCSI product */
-	char		revision[8+1];	/* firmware revision */
-	unsigned long	(*block_read)(struct blk_desc *block_dev,
-				      lbaint_t start,
-				      lbaint_t blkcnt,
-				      void *buffer);
-	unsigned long	(*block_write)(struct blk_desc *block_dev,
-				       lbaint_t start,
-				       lbaint_t blkcnt,
-				       const void *buffer);
-	unsigned long	(*block_erase)(struct blk_desc *block_dev,
-				       lbaint_t start,
-				       lbaint_t blkcnt);
-	void		*priv;		/* driver private struct pointer */
-};
-
-#define BLOCK_CNT(size, blk_desc) (PAD_COUNT(size, blk_desc->blksz))
-#define PAD_TO_BLOCKSIZE(size, blk_desc) \
-	(PAD_SIZE(size, blk_desc->blksz))
 #define LOG2(x) (((x & 0xaaaaaaaa) ? 1 : 0) + ((x & 0xcccccccc) ? 2 : 0) + \
 		 ((x & 0xf0f0f0f0) ? 4 : 0) + ((x & 0xff00ff00) ? 8 : 0) + \
 		 ((x & 0xffff0000) ? 16 : 0))
 #define LOG2_INVALID(type) ((type)((sizeof(type)<<3)-1))
 
-/* Interface types: */
-#define IF_TYPE_UNKNOWN		0
-#define IF_TYPE_IDE		1
-#define IF_TYPE_SCSI		2
-#define IF_TYPE_ATAPI		3
-#define IF_TYPE_USB		4
-#define IF_TYPE_DOC		5
-#define IF_TYPE_MMC		6
-#define IF_TYPE_SD		7
-#define IF_TYPE_SATA		8
-#define IF_TYPE_HOST		9
-#define IF_TYPE_MAX		10	/* Max number of IF_TYPE_* supported */
-
 /* Part types */
 #define PART_TYPE_UNKNOWN	0x00
 #define PART_TYPE_MAC		0x01