v4.19.13 snapshot.
diff --git a/include/linux/atmel-mci.h b/include/linux/atmel-mci.h
new file mode 100644
index 0000000..1491af3
--- /dev/null
+++ b/include/linux/atmel-mci.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LINUX_ATMEL_MCI_H
+#define __LINUX_ATMEL_MCI_H
+
+#include <linux/types.h>
+#include <linux/dmaengine.h>
+
+#define ATMCI_MAX_NR_SLOTS 2
+
+/**
+ * struct mci_slot_pdata - board-specific per-slot configuration
+ * @bus_width: Number of data lines wired up the slot
+ * @detect_pin: GPIO pin wired to the card detect switch
+ * @wp_pin: GPIO pin wired to the write protect sensor
+ * @detect_is_active_high: The state of the detect pin when it is active
+ * @non_removable: The slot is not removable, only detect once
+ *
+ * If a given slot is not present on the board, @bus_width should be
+ * set to 0. The other fields are ignored in this case.
+ *
+ * Any pins that aren't available should be set to a negative value.
+ *
+ * Note that support for multiple slots is experimental -- some cards
+ * might get upset if we don't get the clock management exactly right.
+ * But in most cases, it should work just fine.
+ */
+struct mci_slot_pdata {
+ unsigned int bus_width;
+ int detect_pin;
+ int wp_pin;
+ bool detect_is_active_high;
+ bool non_removable;
+};
+
+/**
+ * struct mci_platform_data - board-specific MMC/SDcard configuration
+ * @dma_slave: DMA slave interface to use in data transfers.
+ * @slot: Per-slot configuration data.
+ */
+struct mci_platform_data {
+ void *dma_slave;
+ dma_filter_fn dma_filter;
+ struct mci_slot_pdata slot[ATMCI_MAX_NR_SLOTS];
+};
+
+#endif /* __LINUX_ATMEL_MCI_H */