dm: sandbox: Drop the pre-DM host implementation

Driver model is used for host device block devices now, so we don't need the
old code. Remove it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Stephen Warren <swarren@nvidia.com>

drivers/block/sandbox.c

@@ -17,19 +17,6 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-#ifndef CONFIG_BLK
-static struct host_block_dev host_devices[CONFIG_HOST_MAX_DEVICES];
-
-static struct host_block_dev *find_host_device(int dev)
-{
-	if (dev >= 0 && dev < CONFIG_HOST_MAX_DEVICES)
-		return &host_devices[dev];
-
-	return NULL;
-}
-#endif
-
-#ifdef CONFIG_BLK
 static unsigned long host_block_read(struct udevice *dev,
 				     unsigned long start, lbaint_t blkcnt,
 				     void *buffer)
@@ -37,18 +24,6 @@ static unsigned long host_block_read(struct udevice *dev,
 	struct host_block_dev *host_dev = dev_get_priv(dev);
 	struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
 
-#else
-static unsigned long host_block_read(struct blk_desc *block_dev,
-				     unsigned long start, lbaint_t blkcnt,
-				     void *buffer)
-{
-	int dev = block_dev->devnum;
-	struct host_block_dev *host_dev = find_host_device(dev);
-
-	if (!host_dev)
-		return -1;
-#endif
-
 	if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
 			-1) {
 		printf("ERROR: Invalid block %lx\n", start);
@@ -60,21 +35,12 @@ static unsigned long host_block_read(struct blk_desc *block_dev,
 	return -1;
 }
 
-#ifdef CONFIG_BLK
 static unsigned long host_block_write(struct udevice *dev,
 				      unsigned long start, lbaint_t blkcnt,
 				      const void *buffer)
 {
 	struct host_block_dev *host_dev = dev_get_priv(dev);
 	struct blk_desc *block_dev = dev_get_uclass_platdata(dev);
-#else
-static unsigned long host_block_write(struct blk_desc *block_dev,
-				      unsigned long start, lbaint_t blkcnt,
-				      const void *buffer)
-{
-	int dev = block_dev->devnum;
-	struct host_block_dev *host_dev = find_host_device(dev);
-#endif
 
 	if (os_lseek(host_dev->fd, start * block_dev->blksz, OS_SEEK_SET) ==
 			-1) {
@@ -87,7 +53,6 @@ static unsigned long host_block_write(struct blk_desc *block_dev,
 	return -1;
 }
 
-#ifdef CONFIG_BLK
 int host_dev_bind(int devnum, char *filename)
 {
 	struct host_block_dev *host_dev;
@@ -150,51 +115,9 @@ err:
 	free(str);
 	return ret;
 }
-#else
-int host_dev_bind(int dev, char *filename)
-{
-	struct host_block_dev *host_dev = find_host_device(dev);
-
-	if (!host_dev)
-		return -1;
-	if (host_dev->blk_dev.priv) {
-		os_close(host_dev->fd);
-		host_dev->blk_dev.priv = NULL;
-	}
-	if (host_dev->filename)
-		free(host_dev->filename);
-	if (filename && *filename) {
-		host_dev->filename = strdup(filename);
-	} else {
-		host_dev->filename = NULL;
-		return 0;
-	}
-
-	host_dev->fd = os_open(host_dev->filename, OS_O_RDWR);
-	if (host_dev->fd == -1) {
-		printf("Failed to access host backing file '%s'\n",
-		       host_dev->filename);
-		return 1;
-	}
-
-	struct blk_desc *blk_dev = &host_dev->blk_dev;
-	blk_dev->if_type = IF_TYPE_HOST;
-	blk_dev->priv = host_dev;
-	blk_dev->blksz = 512;
-	blk_dev->lba = os_lseek(host_dev->fd, 0, OS_SEEK_END) / blk_dev->blksz;
-	blk_dev->block_read = host_block_read;
-	blk_dev->block_write = host_block_write;
-	blk_dev->devnum = dev;
-	blk_dev->part_type = PART_TYPE_UNKNOWN;
-	part_init(blk_dev);
-
-	return 0;
-}
-#endif
 
 int host_get_dev_err(int devnum, struct blk_desc **blk_devp)
 {
-#ifdef CONFIG_BLK
 	struct udevice *dev;
 	int ret;
 
@@ -202,17 +125,6 @@ int host_get_dev_err(int devnum, struct blk_desc **blk_devp)
 	if (ret)
 		return ret;
 	*blk_devp = dev_get_uclass_platdata(dev);
-#else
-	struct host_block_dev *host_dev = find_host_device(devnum);
-
-	if (!host_dev)
-		return -ENODEV;
-
-	if (!host_dev->blk_dev.priv)
-		return -ENOENT;
-
-	*blk_devp = &host_dev->blk_dev;
-#endif
 
 	return 0;
 }
@@ -227,7 +139,6 @@ struct blk_desc *host_get_dev(int dev)
 	return blk_dev;
 }
 
-#ifdef CONFIG_BLK
 static const struct blk_ops sandbox_host_blk_ops = {
 	.read	= host_block_read,
 	.write	= host_block_write,
@@ -239,4 +150,3 @@ U_BOOT_DRIVER(sandbox_host_blk) = {
 	.ops		= &sandbox_host_blk_ops,
 	.priv_auto_alloc_size	= sizeof(struct host_block_dev),
 };
-#endif