usb: add isp1760 family driver
ISP1760/61/63 are a family of usb controllers, here the main
goal is to support the ISP1763 hcd part found in the MPS3 FPGA
board form Arm. This is based on the kernel driver and ported
to u-boot.
Signed-off-by: Rui Miguel Silva <rui.silva@linaro.org>
diff --git a/drivers/usb/isp1760/isp1760-hcd.h b/drivers/usb/isp1760/isp1760-hcd.h
new file mode 100644
index 0000000..c47b739
--- /dev/null
+++ b/drivers/usb/isp1760/isp1760-hcd.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ISP1760_HCD_H_
+#define _ISP1760_HCD_H_
+
+#include <regmap.h>
+
+#include "isp1760-regs.h"
+
+struct isp1760_qh;
+struct isp1760_qtd;
+struct resource;
+struct usb_hcd;
+
+struct isp1760_slotinfo {
+ struct isp1760_qh *qh;
+ struct isp1760_qtd *qtd;
+ unsigned long timestamp;
+};
+
+/* chip memory management */
+#define ISP176x_BLOCK_MAX (32 + 20 + 4)
+#define ISP176x_BLOCK_NUM 3
+
+struct isp1760_memory_layout {
+ unsigned int blocks[ISP176x_BLOCK_NUM];
+ unsigned int blocks_size[ISP176x_BLOCK_NUM];
+
+ unsigned int slot_num;
+ unsigned int payload_blocks;
+ unsigned int payload_area_size;
+};
+
+struct isp1760_memory_chunk {
+ unsigned int start;
+ unsigned int size;
+ unsigned int free;
+};
+
+enum isp1760_queue_head_types {
+ QH_CONTROL,
+ QH_BULK,
+ QH_INTERRUPT,
+ QH_END
+};
+
+struct isp1760_hcd {
+ struct usb_hcd *hcd;
+ struct udevice *dev;
+
+ void __iomem *base;
+
+ struct regmap *regs;
+ struct regmap_field *fields[HC_FIELD_MAX];
+
+ bool is_isp1763;
+ const struct isp1760_memory_layout *memory_layout;
+
+ struct isp1760_slotinfo *atl_slots;
+ int atl_done_map;
+ struct isp1760_slotinfo *int_slots;
+ int int_done_map;
+ struct isp1760_memory_chunk memory_pool[ISP176x_BLOCK_MAX];
+ struct list_head qh_list[QH_END];
+
+ /* periodic schedule support */
+#define DEFAULT_I_TDPS 1024
+ unsigned int periodic_size;
+ unsigned int i_thresh;
+ unsigned long reset_done;
+ unsigned long next_statechange;
+};
+
+int isp1760_hcd_register(struct isp1760_hcd *priv, struct resource *mem,
+ int irq, unsigned long irqflags, struct udevice *dev);
+void isp1760_hcd_unregister(struct isp1760_hcd *priv);
+int isp1760_hcd_lowlevel_init(struct isp1760_hcd *priv);
+
+int isp1760_init_kmem_once(void);
+void isp1760_deinit_kmem_cache(void);
+
+#endif /* _ISP1760_HCD_H_ */