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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-mx5/ehci.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-mx5/ehci.c')
-rw-r--r--arch/arm/mach-mx5/ehci.c156
1 files changed, 156 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/ehci.c b/arch/arm/mach-mx5/ehci.c
new file mode 100644
index 000000000000..7ce12c804a32
--- /dev/null
+++ b/arch/arm/mach-mx5/ehci.c
@@ -0,0 +1,156 @@
+/*
+ * 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 MXC_OTG_OFFSET 0
+#define MXC_H1_OFFSET 0x200
+#define MXC_H2_OFFSET 0x400
+
+/* USB_CTRL */
+#define MXC_OTG_UCTRL_OWIE_BIT (1 << 27) /* OTG wakeup intr enable */
+#define MXC_OTG_UCTRL_OPM_BIT (1 << 24) /* OTG power mask */
+#define MXC_H1_UCTRL_H1UIE_BIT (1 << 12) /* Host1 ULPI interrupt enable */
+#define MXC_H1_UCTRL_H1WIE_BIT (1 << 11) /* HOST1 wakeup intr enable */
+#define MXC_H1_UCTRL_H1PM_BIT (1 << 8) /* HOST1 power mask */
+
+/* USB_PHY_CTRL_FUNC */
+#define MXC_OTG_PHYCTRL_OC_DIS_BIT (1 << 8) /* OTG Disable Overcurrent Event */
+#define MXC_H1_OC_DIS_BIT (1 << 5) /* UH1 Disable Overcurrent Event */
+
+/* USBH2CTRL */
+#define MXC_H2_UCTRL_H2UIE_BIT (1 << 8)
+#define MXC_H2_UCTRL_H2WIE_BIT (1 << 7)
+#define MXC_H2_UCTRL_H2PM_BIT (1 << 4)
+
+#define MXC_USBCMD_OFFSET 0x140
+
+/* USBCMD */
+#define MXC_UCMD_ITC_NO_THRESHOLD_MASK (~(0xff << 16)) /* Interrupt Threshold Control */
+
+int mx51_initialize_usb_hw(int port, unsigned int flags)
+{
+ unsigned int v;
+ void __iomem *usb_base;
+ void __iomem *usbotg_base;
+ void __iomem *usbother_base;
+ int ret = 0;
+
+ usb_base = ioremap(MX51_OTG_BASE_ADDR, SZ_4K);
+ if (!usb_base) {
+ printk(KERN_ERR "%s(): ioremap failed\n", __func__);
+ return -ENOMEM;
+ }
+
+ switch (port) {
+ case 0: /* OTG port */
+ usbotg_base = usb_base + MXC_OTG_OFFSET;
+ break;
+ case 1: /* Host 1 port */
+ usbotg_base = usb_base + MXC_H1_OFFSET;
+ break;
+ case 2: /* Host 2 port */
+ usbotg_base = usb_base + MXC_H2_OFFSET;
+ break;
+ default:
+ printk(KERN_ERR"%s no such port %d\n", __func__, port);
+ ret = -ENOENT;
+ goto error;
+ }
+ usbother_base = usb_base + MX5_USBOTHER_REGS_OFFSET;
+
+ switch (port) {
+ case 0: /*OTG port */
+ if (flags & MXC_EHCI_INTERNAL_PHY) {
+ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED) {
+ /* OC/USBPWR is not used */
+ v |= MXC_OTG_PHYCTRL_OC_DIS_BIT;
+ } else {
+ /* OC/USBPWR is used */
+ v &= ~MXC_OTG_PHYCTRL_OC_DIS_BIT;
+ }
+ __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
+ if (flags & MXC_EHCI_WAKEUP_ENABLED)
+ v |= MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup enable */
+ else
+ v &= ~MXC_OTG_UCTRL_OWIE_BIT;/* OTG wakeup disable */
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v |= MXC_OTG_UCTRL_OPM_BIT;
+ else
+ v &= ~MXC_OTG_UCTRL_OPM_BIT;
+ __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
+ }
+ break;
+ case 1: /* Host 1 */
+ /*Host ULPI */
+ v = __raw_readl(usbother_base + MXC_USBCTRL_OFFSET);
+ if (flags & MXC_EHCI_WAKEUP_ENABLED) {
+ /* HOST1 wakeup/ULPI intr enable */
+ v |= (MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);
+ } else {
+ /* HOST1 wakeup/ULPI intr disable */
+ v &= ~(MXC_H1_UCTRL_H1WIE_BIT | MXC_H1_UCTRL_H1UIE_BIT);
+ }
+
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v &= ~MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
+ else
+ v |= MXC_H1_UCTRL_H1PM_BIT; /* HOST1 power mask used*/
+ __raw_writel(v, usbother_base + MXC_USBCTRL_OFFSET);
+
+ v = __raw_readl(usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v &= ~MXC_H1_OC_DIS_BIT; /* OC is used */
+ else
+ v |= MXC_H1_OC_DIS_BIT; /* OC is not used */
+ __raw_writel(v, usbother_base + MXC_USB_PHY_CTR_FUNC_OFFSET);
+
+ v = __raw_readl(usbotg_base + MXC_USBCMD_OFFSET);
+ if (flags & MXC_EHCI_ITC_NO_THRESHOLD)
+ /* Interrupt Threshold Control:Immediate (no threshold) */
+ v &= MXC_UCMD_ITC_NO_THRESHOLD_MASK;
+ __raw_writel(v, usbotg_base + MXC_USBCMD_OFFSET);
+ break;
+ case 2: /* Host 2 ULPI */
+ v = __raw_readl(usbother_base + MXC_USBH2CTRL_OFFSET);
+ if (flags & MXC_EHCI_WAKEUP_ENABLED) {
+ /* HOST1 wakeup/ULPI intr enable */
+ v |= (MXC_H2_UCTRL_H2WIE_BIT | MXC_H2_UCTRL_H2UIE_BIT);
+ } else {
+ /* HOST1 wakeup/ULPI intr disable */
+ v &= ~(MXC_H2_UCTRL_H2WIE_BIT | MXC_H2_UCTRL_H2UIE_BIT);
+ }
+
+ if (flags & MXC_EHCI_POWER_PINS_ENABLED)
+ v &= ~MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used*/
+ else
+ v |= MXC_H2_UCTRL_H2PM_BIT; /* HOST2 power mask used*/
+ __raw_writel(v, usbother_base + MXC_USBH2CTRL_OFFSET);
+ break;
+ }
+
+error:
+ iounmap(usb_base);
+ return ret;
+}
+