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path: root/drivers/usb/ulpi/omap-ulpi-viewport.c
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Diffstat (limited to 'drivers/usb/ulpi/omap-ulpi-viewport.c')
-rw-r--r--drivers/usb/ulpi/omap-ulpi-viewport.c71
1 files changed, 0 insertions, 71 deletions
diff --git a/drivers/usb/ulpi/omap-ulpi-viewport.c b/drivers/usb/ulpi/omap-ulpi-viewport.c
deleted file mode 100644
index 6f0c3eb154e..00000000000
--- a/drivers/usb/ulpi/omap-ulpi-viewport.c
+++ /dev/null
@@ -1,71 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * OMAP ulpi viewport support
- * Based on drivers/usb/ulpi/ulpi-viewport.c
- *
- * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com
- * Author: Govindraj R <govindraj.raja@ti.com>
- */
-
-#include <log.h>
-#include <asm/io.h>
-#include <linux/delay.h>
-#include <usb/ulpi.h>
-
-#define OMAP_ULPI_WR_OPSEL (2 << 22)
-#define OMAP_ULPI_RD_OPSEL (3 << 22)
-#define OMAP_ULPI_START (1 << 31)
-
-/*
- * Wait for having ulpi in done state
- */
-static int ulpi_wait(struct ulpi_viewport *ulpi_vp, u32 mask)
-{
- int timeout = CFG_USB_ULPI_TIMEOUT;
-
- while (--timeout) {
- if (!(readl(ulpi_vp->viewport_addr) & mask))
- return 0;
-
- udelay(1);
- }
-
- return ULPI_ERROR;
-}
-
-/*
- * Issue a ULPI read/write request
- */
-static int ulpi_request(struct ulpi_viewport *ulpi_vp, u32 value)
-{
- int err;
-
- writel(value, ulpi_vp->viewport_addr);
-
- err = ulpi_wait(ulpi_vp, OMAP_ULPI_START);
- if (err)
- debug("ULPI request timed out\n");
-
- return err;
-}
-
-int ulpi_write(struct ulpi_viewport *ulpi_vp, u8 *reg, u32 value)
-{
- u32 val = OMAP_ULPI_START | (((ulpi_vp->port_num + 1) & 0xf) << 24) |
- OMAP_ULPI_WR_OPSEL | ((u32)reg << 16) | (value & 0xff);
-
- return ulpi_request(ulpi_vp, val);
-}
-
-u32 ulpi_read(struct ulpi_viewport *ulpi_vp, u8 *reg)
-{
- int err;
- u32 val = OMAP_ULPI_START | (((ulpi_vp->port_num + 1) & 0xf) << 24) |
- OMAP_ULPI_RD_OPSEL | ((u32)reg << 16);
-
- err = ulpi_request(ulpi_vp, val);
- if (err)
- return err;
-
- return readl(ulpi_vp->viewport_addr) & 0xff;
-}