+
+#ifdef CONFIG_BLK
+static int systemace_bind(struct udevice *dev)
+{
+ struct blk_desc *bdesc;
+ struct udevice *bdev;
+ int ret;
+
+ ret = blk_create_devicef(dev, "systemace_blk", "blk", IF_TYPE_SYSTEMACE,
+ -1, 512, 0, &bdev);
+ if (ret) {
+ debug("Cannot create block device\n");
+ return ret;
+ }
+ bdesc = dev_get_uclass_platdata(bdev);
+ bdesc->removable = 1;
+ bdesc->part_type = PART_TYPE_UNKNOWN;
+ bdesc->log2blksz = LOG2(bdesc->blksz);
+
+ /* Ensure the correct bus mode (8/16 bits) gets enabled */
+ ace_writew(width == 8 ? 0 : 0x0001, 0);
+
+ return 0;
+}
+
+static const struct blk_ops systemace_blk_ops = {
+ .read = systemace_read,
+};
+
+U_BOOT_DRIVER(systemace_blk) = {
+ .name = "systemace_blk",
+ .id = UCLASS_BLK,
+ .ops = &systemace_blk_ops,
+ .bind = systemace_bind,
+};
+#else
+static int systemace_get_dev(int dev, struct blk_desc **descp)
+{
+ /* The first time through this, the systemace_dev object is
+ not yet initialized. In that case, fill it in. */
+ if (systemace_dev.blksz == 0) {
+ systemace_dev.if_type = IF_TYPE_UNKNOWN;
+ systemace_dev.devnum = 0;
+ systemace_dev.part_type = PART_TYPE_UNKNOWN;
+ systemace_dev.type = DEV_TYPE_HARDDISK;
+ systemace_dev.blksz = 512;
+ systemace_dev.log2blksz = LOG2(systemace_dev.blksz);
+ systemace_dev.removable = 1;
+ systemace_dev.block_read = systemace_read;
+
+ /*
+ * Ensure the correct bus mode (8/16 bits) gets enabled
+ */
+ ace_writew(width == 8 ? 0 : 0x0001, 0);
+
+ part_init(&systemace_dev);
+ }
+ *descp = &systemace_dev;
+
+ return 0;
+}
+
+U_BOOT_LEGACY_BLK(systemace) = {
+ .if_typename = "ace",
+ .if_type = IF_TYPE_SYSTEMACE,
+ .max_devs = 1,
+ .get_dev = systemace_get_dev,
+};
+#endif