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diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-common/usb_tio.h b/target/linux/ubicom32/files/arch/ubicom32/mach-common/usb_tio.h
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+/*
+ * arch/ubicom32/mach-common/usb_tio.h
+ * Definitions for usb_tio.c
+ *
+ * (C) Copyright 2009, Ubicom, Inc.
+ *
+ * This file is part of the Ubicom32 Linux Kernel Port.
+ *
+ * The Ubicom32 Linux Kernel Port is free software: you can redistribute
+ * it and/or modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * The Ubicom32 Linux Kernel Port is distributed in the hope that it
+ * will be useful, but WITHOUT ANY WARRANTY; without even the implied
+ * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
+ * the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with the Ubicom32 Linux Kernel Port. If not,
+ * see <http://www.gnu.org/licenses/>.
+ *
+ * Ubicom32 implementation derived from (with many thanks):
+ * arch/m68knommu
+ * arch/blackfin
+ * arch/parisc
+ */
+
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <asm/devtree.h>
+#include <asm/ip5000.h>
+
+#ifndef _USB_TIO_H
+#define _USB_TIO_H
+
+#undef USB_TIO_DEBUG
+
+#define USB_TIO_REQUEST_MAGIC1 0x2307
+#define USB_TIO_REQUEST_MAGIC2 0x0789
+#if defined(USB_TIO_DEBUG)
+#define USB_TIO_REQUEST_VERIFY_MAGIC(req) usb_tio_request_verify_magic(req)
+#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
+#define USB_TIO_REQUEST_CLEAR_MAGIC(req) usb_tio_request_clear_magic(req)
+#else
+#define USB_TIO_REQUEST_VERIFY_MAGIC(req)
+#define USB_TIO_REQUEST_SET_MAGIC(req) usb_tio_request_set_magic(req)
+#define USB_TIO_REQUEST_CLEAR_MAGIC(req)
+#endif
+
+enum USB_TIO_status {
+ USB_TIO_OK,
+ USB_TIO_ERROR,
+ USB_TIO_ERROR_COMMIT,
+};
+
+enum USB_TIO_cmds {
+ USB_TIO_READ16_SYNC,
+ USB_TIO_READ8_SYNC,
+ USB_TIO_READ_FIFO_SYNC,
+
+ USB_TIO_WRITE16_ASYNC,
+ USB_TIO_WRITE8_ASYNC,
+ USB_TIO_WRITE_FIFO_ASYNC,
+
+ USB_TIO_WRITE16_SYNC,
+ USB_TIO_WRITE8_SYNC,
+ USB_TIO_WRITE_FIFO_SYNC,
+
+};
+
+enum USB_TIO_state {
+ USB_TIO_NORMAL,
+ USB_TIO_DMA_SETUP,
+};
+
+struct usb_tio_request {
+ volatile u32_t address;
+ union {
+ volatile u32_t data;
+ volatile u32_t buffer;
+ };
+ volatile u16_t cmd;
+ const volatile u16_t status;
+ volatile u32_t transfer_length;
+ volatile u32_t thread_mask;
+ volatile u16_t magic;
+};
+
+struct usbtio_node {
+ struct devtree_node dn;
+ volatile struct usb_tio_request * volatile pdesc;
+ struct usb_tio_request request;
+ volatile u32_t usb_vp_config;
+ volatile u32_t usb_vp_control;
+ const volatile u32_t usb_vp_status;
+ volatile u16_t usb_vp_hw_int_tx;
+ volatile u16_t usb_vp_hw_int_rx;
+ volatile u8_t usb_vp_hw_int_usb;
+ volatile u8_t usb_vp_hw_int_mask_usb;
+ volatile u16_t usb_vp_hw_int_mask_tx;
+ volatile u16_t usb_vp_hw_int_mask_rx;
+
+};
+
+extern struct usbtio_node *usb_node;
+extern void ubi32_usb_init(void);
+#endif