blk: Use a macro for the typical block size

Avoid using the magic number 512 directly.

Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/common/usb_storage.c b/common/usb_storage.c
index 8577422..35c656d 100644
--- a/common/usb_storage.c
+++ b/common/usb_storage.c
@@ -219,8 +219,8 @@
 
 		snprintf(str, sizeof(str), "lun%d", lun);
 		ret = blk_create_devicef(udev->dev, "usb_storage_blk", str,
-					 UCLASS_USB, usb_max_devs, 512, 0,
-					 &dev);
+					 UCLASS_USB, usb_max_devs,
+					 DEFAULT_BLKSZ, 0, &dev);
 		if (ret) {
 			debug("Cannot bind driver\n");
 			return ret;
diff --git a/drivers/ata/dwc_ahsata.c b/drivers/ata/dwc_ahsata.c
index 6a4d861..b4d4e39 100644
--- a/drivers/ata/dwc_ahsata.c
+++ b/drivers/ata/dwc_ahsata.c
@@ -880,7 +880,8 @@
 	device_find_first_child(dev, &blk);
 	if (!blk) {
 		ret = blk_create_devicef(dev, "dwc_ahsata_blk", "blk",
-					 UCLASS_AHCI, -1, 512, 0, &blk);
+					 UCLASS_AHCI, -1, DEFAULT_BLKSZ,
+					 0, &blk);
 		if (ret) {
 			debug("Can't create device\n");
 			return ret;
diff --git a/drivers/ata/fsl_sata.c b/drivers/ata/fsl_sata.c
index 972101b..969bc19 100644
--- a/drivers/ata/fsl_sata.c
+++ b/drivers/ata/fsl_sata.c
@@ -888,7 +888,8 @@
 	for (i = 0; i < nr_ports; i++) {
 		snprintf(sata_name, sizeof(sata_name), "fsl_sata%d", i);
 		ret = blk_create_devicef(dev, "sata_fsl_blk", sata_name,
-					 UCLASS_AHCI, -1, 512, 0, &blk);
+					 UCLASS_AHCI, -1, DEFAULT_BLKSZ,
+					 0, &blk);
 		if (ret) {
 			debug("Can't create device\n");
 			return ret;
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 18c7a66..1abea0b 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1076,7 +1076,8 @@
 
 	for (i = 0; i < nr_ports; i++) {
 		ret = blk_create_devicef(dev, "sata_mv_blk", "blk",
-					 UCLASS_AHCI, -1, 512, 0, &blk);
+					 UCLASS_AHCI, -1, DEFAULT_BLKSZ,
+					 0, &blk);
 		if (ret) {
 			debug("Can't create device\n");
 			continue;
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c
index b5e150d..43a91a7 100644
--- a/drivers/ata/sata_sil.c
+++ b/drivers/ata/sata_sil.c
@@ -730,7 +730,8 @@
 	for (i = sata_info.portbase; i < sata_info.maxport; i++) {
 		snprintf(sata_name, sizeof(sata_name), "sil_sata%d", i);
 		ret = blk_create_devicef(dev, "sata_sil_blk", sata_name,
-					 UCLASS_AHCI, -1, 512, 0, &blk);
+					 UCLASS_AHCI, -1, DEFAULT_BLKSZ,
+					 0, &blk);
 		if (ret) {
 			debug("Can't create device\n");
 			return ret;
diff --git a/drivers/block/blkmap.c b/drivers/block/blkmap.c
index 2bb0acc..409aa46 100644
--- a/drivers/block/blkmap.c
+++ b/drivers/block/blkmap.c
@@ -390,7 +390,7 @@
 	int err;
 
 	err = blk_create_devicef(dev, "blkmap_blk", "blk", UCLASS_BLKMAP,
-				 dev_seq(dev), 512, 0, &bm->blk);
+				 dev_seq(dev), DEFAULT_BLKSZ, 0, &bm->blk);
 	if (err)
 		return log_msg_ret("blk", err);
 
diff --git a/drivers/block/host_dev.c b/drivers/block/host_dev.c
index 6442241..31c7814 100644
--- a/drivers/block/host_dev.c
+++ b/drivers/block/host_dev.c
@@ -105,7 +105,7 @@
 	int ret;
 
 	ret = blk_create_devicef(dev, "sandbox_host_blk", "blk", UCLASS_HOST,
-				 dev_seq(dev), 512, 0, &blk);
+				 dev_seq(dev), DEFAULT_BLKSZ, 0, &blk);
 	if (ret)
 		return log_msg_ret("blk", ret);
 
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c
index 0e15767..3284568 100644
--- a/drivers/mmc/mmc-uclass.c
+++ b/drivers/mmc/mmc-uclass.c
@@ -412,7 +412,7 @@
 	debug("%s: alias devnum=%d\n", __func__, dev_seq(dev));
 
 	ret = blk_create_devicef(dev, "mmc_blk", "blk", UCLASS_MMC,
-				 dev_seq(dev), 512, 0, &bdev);
+				 dev_seq(dev), DEFAULT_BLKSZ, 0, &bdev);
 	if (ret) {
 		debug("Cannot create block device\n");
 		return ret;
diff --git a/drivers/nvme/nvme.c b/drivers/nvme/nvme.c
index 20dc910..c39cd41 100644
--- a/drivers/nvme/nvme.c
+++ b/drivers/nvme/nvme.c
@@ -906,7 +906,7 @@
 
 		/* The real blksz and size will be set by nvme_blk_probe() */
 		ret = blk_create_devicef(udev, "nvme-blk", name, UCLASS_NVME,
-					 -1, 512, 0, &ns_udev);
+					 -1, DEFAULT_BLKSZ, 0, &ns_udev);
 		if (ret)
 			goto free_id;
 
diff --git a/include/blk.h b/include/blk.h
index 95e86e2..bbff057 100644
--- a/include/blk.h
+++ b/include/blk.h
@@ -21,6 +21,8 @@
 #define LBAF "%" LBAFlength "x"
 #define LBAFU "%" LBAFlength "u"
 
+#define DEFAULT_BLKSZ		512
+
 struct udevice;
 
 static inline bool blk_enabled(void)