diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 13:43:38 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-07-02 13:43:38 -0700 |
commit | 3883cbb6c1bda013a3ce2dbdab7dc97c52e4a232 (patch) | |
tree | 5b69f83b049d24ac81123ac954ca8c9128e48443 /arch/arm/mach-imx/ulpi.c | |
parent | d2033f2c1d1de2239ded15e478ddb4028f192a15 (diff) | |
parent | 1eb92b24e243085d242cf5ffd64829bba70972e1 (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.c | 118 |
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); -} |