summaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/ulpi.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 13:43:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-02 13:43:38 -0700
commit3883cbb6c1bda013a3ce2dbdab7dc97c52e4a232 (patch)
tree5b69f83b049d24ac81123ac954ca8c9128e48443 /arch/arm/mach-imx/ulpi.c
parentd2033f2c1d1de2239ded15e478ddb4028f192a15 (diff)
parent1eb92b24e243085d242cf5ffd64829bba70972e1 (diff)
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC specific changes from Arnd Bergmann: "These changes are all to SoC-specific code, a total of 33 branches on 17 platforms were pulled into this. Like last time, Renesas sh-mobile is now the platform with the most changes, followed by OMAP and EXYNOS. Two new platforms, TI Keystone and Rockchips RK3xxx are added in this branch, both containing almost no platform specific code at all, since they are using generic subsystem interfaces for clocks, pinctrl, interrupts etc. The device drivers are getting merged through the respective subsystem maintainer trees. One more SoC (u300) is now multiplatform capable and several others (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving towards that goal with this series but need more work. Also noteworthy is the work on PCI here, which is traditionally part of the SoC specific code. With the changes done by Thomas Petazzoni, we can now more easily have PCI host controller drivers as loadable modules and keep them separate from the platform code in drivers/pci/host. This has already led to the discovery that three platforms (exynos, spear and imx) are actually using an identical PCIe host controller and will be able to share a driver once support for spear and imx is added." * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits) ARM: integrator: let pciv3 use mem/premem from device tree ARM: integrator: set local side PCI addresses right ARM: dts: Add pcie controller node for exynos5440-ssdk5440 ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC ARM: EXYNOS: Enable PCIe support for Exynos5440 pci: Add PCIe driver for Samsung Exynos ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data ARM: keystone: Move CPU bringup code to dedicated asm file ARM: multiplatform: always pick one CPU type ARM: imx: select syscon for IMX6SL ARM: keystone: select ARM_ERRATA_798181 only for SMP ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1 ARM: OMAP2+: AM43x: resolve SMP related build error dmaengine: edma: enable build for AM33XX ARM: edma: Add EDMA crossbar event mux support ARM: edma: Add DT and runtime PM support to the private EDMA API dmaengine: edma: Add TI EDMA device tree binding arm: add basic support for Rockchip RK3066a boards arm: add debug uarts for rockchip rk29xx and rk3xxx series arm: Add basic clocks for Rockchip rk3066a SoCs ...
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 0f051957d10c..000000000000
--- 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);
-}