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Diffstat (limited to 'arch/arm/mach-imx/ulpi.c')
-rw-r--r--arch/arm/mach-imx/ulpi.c118
1 files changed, 0 insertions, 118 deletions
diff --git a/arch/arm/mach-imx/ulpi.c b/arch/arm/mach-imx/ulpi.c
deleted file mode 100644
index 0f05195..0000000
--- a/arch/arm/mach-imx/ulpi.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright 2008 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
- * Copyright 2009 Daniel Mack <daniel@caiaq.de>
- *
- * This program 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.
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
- * MA 02110-1301, USA.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/ulpi.h>
-
-#include "ulpi.h"
-
-/* ULPIVIEW register bits */
-#define ULPIVW_WU (1 << 31) /* Wakeup */
-#define ULPIVW_RUN (1 << 30) /* read/write run */
-#define ULPIVW_WRITE (1 << 29) /* 0 = read 1 = write */
-#define ULPIVW_SS (1 << 27) /* SyncState */
-#define ULPIVW_PORT_MASK 0x07 /* Port field */
-#define ULPIVW_PORT_SHIFT 24
-#define ULPIVW_ADDR_MASK 0xff /* data address field */
-#define ULPIVW_ADDR_SHIFT 16
-#define ULPIVW_RDATA_MASK 0xff /* read data field */
-#define ULPIVW_RDATA_SHIFT 8
-#define ULPIVW_WDATA_MASK 0xff /* write data field */
-#define ULPIVW_WDATA_SHIFT 0
-
-static int ulpi_poll(void __iomem *view, u32 bit)
-{
- int timeout = 10000;
-
- while (timeout--) {
- u32 data = __raw_readl(view);
-
- if (!(data & bit))
- return 0;
-
- cpu_relax();
- };
-
- printk(KERN_WARNING "timeout polling for ULPI device\n");
-
- return -ETIMEDOUT;
-}
-
-static int ulpi_read(struct usb_phy *otg, u32 reg)
-{
- int ret;
- void __iomem *view = otg->io_priv;
-
- /* make sure interface is running */
- if (!(__raw_readl(view) & ULPIVW_SS)) {
- __raw_writel(ULPIVW_WU, view);
-
- /* wait for wakeup */
- ret = ulpi_poll(view, ULPIVW_WU);
- if (ret)
- return ret;
- }
-
- /* read the register */
- __raw_writel((ULPIVW_RUN | (reg << ULPIVW_ADDR_SHIFT)), view);
-
- /* wait for completion */
- ret = ulpi_poll(view, ULPIVW_RUN);
- if (ret)
- return ret;
-
- return (__raw_readl(view) >> ULPIVW_RDATA_SHIFT) & ULPIVW_RDATA_MASK;
-}
-
-static int ulpi_write(struct usb_phy *otg, u32 val, u32 reg)
-{
- int ret;
- void __iomem *view = otg->io_priv;
-
- /* make sure the interface is running */
- if (!(__raw_readl(view) & ULPIVW_SS)) {
- __raw_writel(ULPIVW_WU, view);
- /* wait for wakeup */
- ret = ulpi_poll(view, ULPIVW_WU);
- if (ret)
- return ret;
- }
-
- __raw_writel((ULPIVW_RUN | ULPIVW_WRITE |
- (reg << ULPIVW_ADDR_SHIFT) |
- ((val & ULPIVW_WDATA_MASK) << ULPIVW_WDATA_SHIFT)), view);
-
- /* wait for completion */
- return ulpi_poll(view, ULPIVW_RUN);
-}
-
-struct usb_phy_io_ops mxc_ulpi_access_ops = {
- .read = ulpi_read,
- .write = ulpi_write,
-};
-EXPORT_SYMBOL_GPL(mxc_ulpi_access_ops);
-
-struct usb_phy *imx_otg_ulpi_create(unsigned int flags)
-{
- return otg_ulpi_create(&mxc_ulpi_access_ops, flags);
-}