summaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/ehci-imx27.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 19:08:06 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-17 19:08:06 -0700
commit411f5c7a502769ccc0377c5ba36cb0b283847ba8 (patch)
tree2c3a29671e3f923de48c55f94194849264a7bf53 /arch/arm/mach-imx/ehci-imx27.c
parent6d7ed21d17e640b120b902a314143e5ef4917a70 (diff)
parent9ced9f03d12d7539e86b0bff5bc750153c976c34 (diff)
Merge branch 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel-stable' of master.kernel.org:/home/rmk/linux-2.6-arm: (289 commits) davinci: DM644x EVM: register MUSB device earlier davinci: add spi devices on tnetv107x evm davinci: add ssp config for tnetv107x evm board davinci: add tnetv107x ssp platform device spi: add ti-ssp spi master driver mfd: add driver for sequencer serial port ARM: EXYNOS4: Implement Clock gating for System MMU ARM: EXYNOS4: Enhancement of System MMU driver ARM: EXYNOS4: Add support for gpio interrupts ARM: S5P: Add function to register gpio interrupt bank data ARM: S5P: Cleanup S5P gpio interrupt code ARM: EXYNOS4: Add missing GPYx banks ARM: S3C64XX: Fix section mismatch from cpufreq init ARM: EXYNOS4: Add keypad device to the SMDKV310 ARM: EXYNOS4: Update clocks for keypad ARM: EXYNOS4: Update keypad base address ARM: EXYNOS4: Add keypad device helpers ARM: EXYNOS4: Add support for SATA on ARMLEX4210 plat-nomadik: make GPIO interrupts work with cpuidle ApSleep mach-u300: define a dummy filter function for coh901318 ... Fix up various conflicts in - arch/arm/mach-exynos4/cpufreq.c - arch/arm/mach-mxs/gpio.c - drivers/net/Kconfig - drivers/tty/serial/Kconfig - drivers/tty/serial/Makefile - drivers/usb/gadget/fsl_mxc_udc.c - drivers/video/Kconfig
Diffstat (limited to 'arch/arm/mach-imx/ehci-imx27.c')
-rw-r--r--arch/arm/mach-imx/ehci-imx27.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/ehci-imx27.c b/arch/arm/mach-imx/ehci-imx27.c
new file mode 100644
index 00000000000..fa69419eabd
--- /dev/null
+++ b/arch/arm/mach-imx/ehci-imx27.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * 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.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <mach/mxc_ehci.h>
+
+#define USBCTRL_OTGBASE_OFFSET 0x600
+
+#define MX27_OTG_SIC_SHIFT 29
+#define MX27_OTG_SIC_MASK (0x3 << MX27_OTG_SIC_SHIFT)
+#define MX27_OTG_PM_BIT (1 << 24)
+
+#define MX27_H2_SIC_SHIFT 21
+#define MX27_H2_SIC_MASK (0x3 << MX27_H2_SIC_SHIFT)
+#define MX27_H2_PM_BIT (1 << 16)
+#define MX27_H2_DT_BIT (1 << 5)
+
+#define MX27_H1_SIC_SHIFT 13
+#define MX27_H1_SIC_MASK (0x3 << MX27_H1_SIC_SHIFT)
+#define MX27_H1_PM_BIT (1 << 8)
+#define MX27_H1_DT_BIT (1 << 4)
+
+int mx27_initialize_usb_hw(int port, unsigned int flags)
+{
+ unsigned int v;
+
+ v = readl(MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
+
+ switch (port) {
+ case 0: /* OTG port */
+ v &= ~(MX27_OTG_SIC_MASK | MX27_OTG_PM_BIT);
+ v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_OTG_SIC_SHIFT;
+
+ if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+ v |= MX27_OTG_PM_BIT;
+ break;
+ case 1: /* H1 port */
+ v &= ~(MX27_H1_SIC_MASK | MX27_H1_PM_BIT | MX27_H1_DT_BIT);
+ v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H1_SIC_SHIFT;
+
+ if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+ v |= MX27_H1_PM_BIT;
+
+ if (!(flags & MXC_EHCI_TTL_ENABLED))
+ v |= MX27_H1_DT_BIT;
+
+ break;
+ case 2: /* H2 port */
+ v &= ~(MX27_H2_SIC_MASK | MX27_H2_PM_BIT | MX27_H2_DT_BIT);
+ v |= (flags & MXC_EHCI_INTERFACE_MASK) << MX27_H2_SIC_SHIFT;
+
+ if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
+ v |= MX27_H2_PM_BIT;
+
+ if (!(flags & MXC_EHCI_TTL_ENABLED))
+ v |= MX27_H2_DT_BIT;
+
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ writel(v, MX27_IO_ADDRESS(MX27_USB_BASE_ADDR + USBCTRL_OTGBASE_OFFSET));
+
+ return 0;
+}
+