dm: Add block device document

[u-boot] / disk / part.c

diff --git a/disk/part.c b/disk/part.c
index 13723f23b3113c74fa7b2590de65bf0d7d3c5a6b..76f393900a50b452b9f7afa59a43f3e896fa90cc 100644 (file)
--- a/disk/part.c
+++ b/disk/part.c
@@ -35,7 +35,6 @@
 #endif
 
 #if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
      defined(CONFIG_CMD_SATA) || \
      defined(CONFIG_CMD_SCSI) || \
      defined(CONFIG_CMD_USB) || \
@@ -65,9 +64,6 @@ static const struct block_drvr block_drvr[] = {
 #endif
 #if defined(CONFIG_SYSTEMACE)
        { .name = "ace", .get_dev = systemace_get_dev, },
-#endif
-#if defined(CONFIG_CMD_MG_DISK)
-       { .name = "mgd", .get_dev = mg_disk_get_dev, },
 #endif
        { },
 };
@@ -80,11 +76,14 @@ block_dev_desc_t *get_dev(char* ifname, int dev)
        block_dev_desc_t* (*reloc_get_dev)(int dev);
        char *name;
 
+       if (!ifname)
+               return NULL;
+
        name = drvr->name;
 #ifdef CONFIG_NEEDS_MANUAL_RELOC
        name += gd->reloc_off;
 #endif
-       while (name) {
+       while (drvr->name) {
                name = drvr->name;
                reloc_get_dev = drvr->get_dev;
 #ifdef CONFIG_NEEDS_MANUAL_RELOC
@@ -105,7 +104,6 @@ block_dev_desc_t *get_dev(char* ifname, int dev)
 #endif
 
 #if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
      defined(CONFIG_CMD_SATA) || \
      defined(CONFIG_CMD_SCSI) || \
      defined(CONFIG_CMD_USB) || \
@@ -241,7 +239,6 @@ void dev_print (block_dev_desc_t *dev_desc)
 #endif
 
 #if (defined(CONFIG_CMD_IDE) || \
-     defined(CONFIG_CMD_MG_DISK) || \
      defined(CONFIG_CMD_SATA) || \
      defined(CONFIG_CMD_SCSI) || \
      defined(CONFIG_CMD_USB) || \