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authorNeil Zhang <zhangwm@marvell.com>2012-05-03 14:19:13 +0800
committerHaojian Zhuang <haojian.zhuang@gmail.com>2012-05-03 15:05:10 +0800
commit75b1bdf51c4b5c383296de2df9ad83b1b8dd287f (patch)
tree9f5c8d852438ac07ddda81696cfa4842a84265bb /arch/arm/mach-mmp
parent1334d86b55d2ec1b50fdcb440c2642ae7a4620ba (diff)
ARM: mmp: add usb device support for PXA910
Add usb device support for Marvell PXA910. Actually PXA920 will use the same device. Signed-off-by: Neil Zhang <zhangwm@marvell.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Diffstat (limited to 'arch/arm/mach-mmp')
-rw-r--r--arch/arm/mach-mmp/Kconfig7
-rw-r--r--arch/arm/mach-mmp/devices.c282
-rw-r--r--arch/arm/mach-mmp/include/mach/devices.h3
-rw-r--r--arch/arm/mach-mmp/include/mach/pxa910.h3
-rw-r--r--arch/arm/mach-mmp/include/mach/regs-usb.h253
-rw-r--r--arch/arm/mach-mmp/pxa910.c2
6 files changed, 549 insertions, 1 deletions
diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index 5a90b9a3ab6..fa03974fd83 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -113,4 +113,11 @@ config CPU_MMP2
select CPU_PJ4
help
Select code specific to MMP2. MMP2 is ARMv7 compatible.
+
+config USB_EHCI_MV_U2O
+ bool "EHCI support for PXA USB OTG controller"
+ depends on USB_EHCI_MV
+ help
+ Enables support for OTG controller which can be switched to host mode.
+
endif
diff --git a/arch/arm/mach-mmp/devices.c b/arch/arm/mach-mmp/devices.c
index 191d9dea873..262179f4510 100644
--- a/arch/arm/mach-mmp/devices.c
+++ b/arch/arm/mach-mmp/devices.c
@@ -9,9 +9,13 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/dma-mapping.h>
+#include <linux/delay.h>
#include <asm/irq.h>
+#include <mach/irqs.h>
#include <mach/devices.h>
+#include <mach/cputype.h>
+#include <mach/regs-usb.h>
int __init pxa_register_device(struct pxa_device_desc *desc,
void *data, size_t size)
@@ -67,3 +71,281 @@ int __init pxa_register_device(struct pxa_device_desc *desc,
return platform_device_add(pdev);
}
+
+#if defined(CONFIG_USB) || defined(CONFIG_USB_GADGET)
+
+/*****************************************************************************
+ * The registers read/write routines
+ *****************************************************************************/
+
+static unsigned int u2o_get(void __iomem *base, unsigned int offset)
+{
+ return readl_relaxed(base + offset);
+}
+
+static void u2o_set(void __iomem *base, unsigned int offset,
+ unsigned int value)
+{
+ u32 reg;
+
+ reg = readl_relaxed(base + offset);
+ reg |= value;
+ writel_relaxed(reg, base + offset);
+ readl_relaxed(base + offset);
+}
+
+static void u2o_clear(void __iomem *base, unsigned int offset,
+ unsigned int value)
+{
+ u32 reg;
+
+ reg = readl_relaxed(base + offset);
+ reg &= ~value;
+ writel_relaxed(reg, base + offset);
+ readl_relaxed(base + offset);
+}
+
+static void u2o_write(void __iomem *base, unsigned int offset,
+ unsigned int value)
+{
+ writel_relaxed(value, base + offset);
+ readl_relaxed(base + offset);
+}
+
+#if defined(CONFIG_USB_MV_UDC) || defined(CONFIG_USB_EHCI_MV)
+
+#if defined(CONFIG_CPU_PXA910)
+
+static DEFINE_MUTEX(phy_lock);
+static int phy_init_cnt;
+
+static int usb_phy_init_internal(void __iomem *base)
+{
+ int loops;
+
+ pr_info("Init usb phy!!!\n");
+
+ /* Initialize the USB PHY power */
+ if (cpu_is_pxa910()) {
+ u2o_set(base, UTMI_CTRL, (1<<UTMI_CTRL_INPKT_DELAY_SOF_SHIFT)
+ | (1<<UTMI_CTRL_PU_REF_SHIFT));
+ }
+
+ u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
+ u2o_set(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
+
+ /* UTMI_PLL settings */
+ u2o_clear(base, UTMI_PLL, UTMI_PLL_PLLVDD18_MASK
+ | UTMI_PLL_PLLVDD12_MASK | UTMI_PLL_PLLCALI12_MASK
+ | UTMI_PLL_FBDIV_MASK | UTMI_PLL_REFDIV_MASK
+ | UTMI_PLL_ICP_MASK | UTMI_PLL_KVCO_MASK);
+
+ u2o_set(base, UTMI_PLL, 0xee<<UTMI_PLL_FBDIV_SHIFT
+ | 0xb<<UTMI_PLL_REFDIV_SHIFT | 3<<UTMI_PLL_PLLVDD18_SHIFT
+ | 3<<UTMI_PLL_PLLVDD12_SHIFT | 3<<UTMI_PLL_PLLCALI12_SHIFT
+ | 1<<UTMI_PLL_ICP_SHIFT | 3<<UTMI_PLL_KVCO_SHIFT);
+
+ /* UTMI_TX */
+ u2o_clear(base, UTMI_TX, UTMI_TX_REG_EXT_FS_RCAL_EN_MASK
+ | UTMI_TX_TXVDD12_MASK | UTMI_TX_CK60_PHSEL_MASK
+ | UTMI_TX_IMPCAL_VTH_MASK | UTMI_TX_REG_EXT_FS_RCAL_MASK
+ | UTMI_TX_AMP_MASK);
+ u2o_set(base, UTMI_TX, 3<<UTMI_TX_TXVDD12_SHIFT
+ | 4<<UTMI_TX_CK60_PHSEL_SHIFT | 4<<UTMI_TX_IMPCAL_VTH_SHIFT
+ | 8<<UTMI_TX_REG_EXT_FS_RCAL_SHIFT | 3<<UTMI_TX_AMP_SHIFT);
+
+ /* UTMI_RX */
+ u2o_clear(base, UTMI_RX, UTMI_RX_SQ_THRESH_MASK
+ | UTMI_REG_SQ_LENGTH_MASK);
+ u2o_set(base, UTMI_RX, 7<<UTMI_RX_SQ_THRESH_SHIFT
+ | 2<<UTMI_REG_SQ_LENGTH_SHIFT);
+
+ /* UTMI_IVREF */
+ if (cpu_is_pxa168())
+ /* fixing Microsoft Altair board interface with NEC hub issue -
+ * Set UTMI_IVREF from 0x4a3 to 0x4bf */
+ u2o_write(base, UTMI_IVREF, 0x4bf);
+
+ /* toggle VCOCAL_START bit of UTMI_PLL */
+ udelay(200);
+ u2o_set(base, UTMI_PLL, VCOCAL_START);
+ udelay(40);
+ u2o_clear(base, UTMI_PLL, VCOCAL_START);
+
+ /* toggle REG_RCAL_START bit of UTMI_TX */
+ udelay(400);
+ u2o_set(base, UTMI_TX, REG_RCAL_START);
+ udelay(40);
+ u2o_clear(base, UTMI_TX, REG_RCAL_START);
+ udelay(400);
+
+ /* Make sure PHY PLL is ready */
+ loops = 0;
+ while ((u2o_get(base, UTMI_PLL) & PLL_READY) == 0) {
+ mdelay(1);
+ loops++;
+ if (loops > 100) {
+ printk(KERN_WARNING "calibrate timeout, UTMI_PLL %x\n",
+ u2o_get(base, UTMI_PLL));
+ break;
+ }
+ }
+
+ if (cpu_is_pxa168()) {
+ u2o_set(base, UTMI_RESERVE, 1 << 5);
+ /* Turn on UTMI PHY OTG extension */
+ u2o_write(base, UTMI_OTG_ADDON, 1);
+ }
+
+ return 0;
+}
+
+static int usb_phy_deinit_internal(void __iomem *base)
+{
+ pr_info("Deinit usb phy!!!\n");
+
+ if (cpu_is_pxa168())
+ u2o_clear(base, UTMI_OTG_ADDON, UTMI_OTG_ADDON_OTG_ON);
+
+ u2o_clear(base, UTMI_CTRL, UTMI_CTRL_RXBUF_PDWN);
+ u2o_clear(base, UTMI_CTRL, UTMI_CTRL_TXBUF_PDWN);
+ u2o_clear(base, UTMI_CTRL, UTMI_CTRL_USB_CLK_EN);
+ u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PWR_UP_SHIFT);
+ u2o_clear(base, UTMI_CTRL, 1<<UTMI_CTRL_PLL_PWR_UP_SHIFT);
+
+ return 0;
+}
+
+int pxa_usb_phy_init(void __iomem *phy_reg)
+{
+ mutex_lock(&phy_lock);
+ if (phy_init_cnt++ == 0)
+ usb_phy_init_internal(phy_reg);
+ mutex_unlock(&phy_lock);
+ return 0;
+}
+
+void pxa_usb_phy_deinit(void __iomem *phy_reg)
+{
+ WARN_ON(phy_init_cnt == 0);
+
+ mutex_lock(&phy_lock);
+ if (--phy_init_cnt == 0)
+ usb_phy_deinit_internal(phy_reg);
+ mutex_unlock(&phy_lock);
+}
+#endif
+#endif
+#endif
+
+#ifdef CONFIG_USB_SUPPORT
+static u64 usb_dma_mask = ~(u32)0;
+
+#ifdef CONFIG_USB_MV_UDC
+struct resource pxa168_u2o_resources[] = {
+ /* regbase */
+ [0] = {
+ .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
+ .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "capregs",
+ },
+ /* phybase */
+ [1] = {
+ .start = PXA168_U2O_PHYBASE,
+ .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "phyregs",
+ },
+ [2] = {
+ .start = IRQ_PXA168_USB1,
+ .end = IRQ_PXA168_USB1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device pxa168_device_u2o = {
+ .name = "mv-udc",
+ .id = -1,
+ .resource = pxa168_u2o_resources,
+ .num_resources = ARRAY_SIZE(pxa168_u2o_resources),
+ .dev = {
+ .dma_mask = &usb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ }
+};
+#endif /* CONFIG_USB_MV_UDC */
+
+#ifdef CONFIG_USB_EHCI_MV_U2O
+struct resource pxa168_u2oehci_resources[] = {
+ /* regbase */
+ [0] = {
+ .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
+ .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "capregs",
+ },
+ /* phybase */
+ [1] = {
+ .start = PXA168_U2O_PHYBASE,
+ .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "phyregs",
+ },
+ [2] = {
+ .start = IRQ_PXA168_USB1,
+ .end = IRQ_PXA168_USB1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device pxa168_device_u2oehci = {
+ .name = "pxa-u2oehci",
+ .id = -1,
+ .dev = {
+ .dma_mask = &usb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+
+ .num_resources = ARRAY_SIZE(pxa168_u2oehci_resources),
+ .resource = pxa168_u2oehci_resources,
+};
+#endif
+
+#if defined(CONFIG_USB_MV_OTG)
+struct resource pxa168_u2ootg_resources[] = {
+ /* regbase */
+ [0] = {
+ .start = PXA168_U2O_REGBASE + U2x_CAPREGS_OFFSET,
+ .end = PXA168_U2O_REGBASE + USB_REG_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "capregs",
+ },
+ /* phybase */
+ [1] = {
+ .start = PXA168_U2O_PHYBASE,
+ .end = PXA168_U2O_PHYBASE + USB_PHY_RANGE,
+ .flags = IORESOURCE_MEM,
+ .name = "phyregs",
+ },
+ [2] = {
+ .start = IRQ_PXA168_USB1,
+ .end = IRQ_PXA168_USB1,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+struct platform_device pxa168_device_u2ootg = {
+ .name = "mv-otg",
+ .id = -1,
+ .dev = {
+ .dma_mask = &usb_dma_mask,
+ .coherent_dma_mask = 0xffffffff,
+ },
+
+ .num_resources = ARRAY_SIZE(pxa168_u2ootg_resources),
+ .resource = pxa168_u2ootg_resources,
+};
+#endif /* CONFIG_USB_MV_OTG */
+
+#endif
diff --git a/arch/arm/mach-mmp/include/mach/devices.h b/arch/arm/mach-mmp/include/mach/devices.h
index d0ec7dae88e..21217ef11b6 100644
--- a/arch/arm/mach-mmp/include/mach/devices.h
+++ b/arch/arm/mach-mmp/include/mach/devices.h
@@ -50,4 +50,7 @@ struct pxa_device_desc mmp2_device_##_name __initdata = { \
}
extern int pxa_register_device(struct pxa_device_desc *, void *, size_t);
+extern int pxa_usb_phy_init(void __iomem *phy_reg);
+extern void pxa_usb_phy_deinit(void __iomem *phy_reg);
+
#endif /* __MACH_DEVICE_H */
diff --git a/arch/arm/mach-mmp/include/mach/pxa910.h b/arch/arm/mach-mmp/include/mach/pxa910.h
index e2e1f1e5e12..793634c837e 100644
--- a/arch/arm/mach-mmp/include/mach/pxa910.h
+++ b/arch/arm/mach-mmp/include/mach/pxa910.h
@@ -20,6 +20,9 @@ extern struct pxa_device_desc pxa910_device_pwm2;
extern struct pxa_device_desc pxa910_device_pwm3;
extern struct pxa_device_desc pxa910_device_pwm4;
extern struct pxa_device_desc pxa910_device_nand;
+extern struct platform_device pxa168_device_u2o;
+extern struct platform_device pxa168_device_u2ootg;
+extern struct platform_device pxa168_device_u2oehci;
extern struct platform_device pxa910_device_gpio;
extern struct platform_device pxa910_device_rtc;
diff --git a/arch/arm/mach-mmp/include/mach/regs-usb.h b/arch/arm/mach-mmp/include/mach/regs-usb.h
new file mode 100644
index 00000000000..b047bf48750
--- /dev/null
+++ b/arch/arm/mach-mmp/include/mach/regs-usb.h
@@ -0,0 +1,253 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARCH_REGS_USB_H
+#define __ASM_ARCH_REGS_USB_H
+
+#define PXA168_U2O_REGBASE (0xd4208000)
+#define PXA168_U2O_PHYBASE (0xd4207000)
+
+#define PXA168_U2H_REGBASE (0xd4209000)
+#define PXA168_U2H_PHYBASE (0xd4206000)
+
+#define MMP3_HSIC1_REGBASE (0xf0001000)
+#define MMP3_HSIC1_PHYBASE (0xf0001800)
+
+#define MMP3_HSIC2_REGBASE (0xf0002000)
+#define MMP3_HSIC2_PHYBASE (0xf0002800)
+
+#define MMP3_FSIC_REGBASE (0xf0003000)
+#define MMP3_FSIC_PHYBASE (0xf0003800)
+
+
+#define USB_REG_RANGE (0x1ff)
+#define USB_PHY_RANGE (0xff)
+
+/* registers */
+#define U2x_CAPREGS_OFFSET 0x100
+
+/* phy regs */
+#define UTMI_REVISION 0x0
+#define UTMI_CTRL 0x4
+#define UTMI_PLL 0x8
+#define UTMI_TX 0xc
+#define UTMI_RX 0x10
+#define UTMI_IVREF 0x14
+#define UTMI_T0 0x18
+#define UTMI_T1 0x1c
+#define UTMI_T2 0x20
+#define UTMI_T3 0x24
+#define UTMI_T4 0x28
+#define UTMI_T5 0x2c
+#define UTMI_RESERVE 0x30
+#define UTMI_USB_INT 0x34
+#define UTMI_DBG_CTL 0x38
+#define UTMI_OTG_ADDON 0x3c
+
+/* For UTMICTRL Register */
+#define UTMI_CTRL_USB_CLK_EN (1 << 31)
+/* pxa168 */
+#define UTMI_CTRL_SUSPEND_SET1 (1 << 30)
+#define UTMI_CTRL_SUSPEND_SET2 (1 << 29)
+#define UTMI_CTRL_RXBUF_PDWN (1 << 24)
+#define UTMI_CTRL_TXBUF_PDWN (1 << 11)
+
+#define UTMI_CTRL_INPKT_DELAY_SHIFT 30
+#define UTMI_CTRL_INPKT_DELAY_SOF_SHIFT 28
+#define UTMI_CTRL_PU_REF_SHIFT 20
+#define UTMI_CTRL_ARC_PULLDN_SHIFT 12
+#define UTMI_CTRL_PLL_PWR_UP_SHIFT 1
+#define UTMI_CTRL_PWR_UP_SHIFT 0
+
+/* For UTMI_PLL Register */
+#define UTMI_PLL_PLLCALI12_SHIFT 29
+#define UTMI_PLL_PLLCALI12_MASK (0x3 << 29)
+
+#define UTMI_PLL_PLLVDD18_SHIFT 27
+#define UTMI_PLL_PLLVDD18_MASK (0x3 << 27)
+
+#define UTMI_PLL_PLLVDD12_SHIFT 25
+#define UTMI_PLL_PLLVDD12_MASK (0x3 << 25)
+
+#define UTMI_PLL_CLK_BLK_EN_SHIFT 24
+#define CLK_BLK_EN (0x1 << 24)
+#define PLL_READY (0x1 << 23)
+#define KVCO_EXT (0x1 << 22)
+#define VCOCAL_START (0x1 << 21)
+
+#define UTMI_PLL_KVCO_SHIFT 15
+#define UTMI_PLL_KVCO_MASK (0x7 << 15)
+
+#define UTMI_PLL_ICP_SHIFT 12
+#define UTMI_PLL_ICP_MASK (0x7 << 12)
+
+#define UTMI_PLL_FBDIV_SHIFT 4
+#define UTMI_PLL_FBDIV_MASK (0xFF << 4)
+
+#define UTMI_PLL_REFDIV_SHIFT 0
+#define UTMI_PLL_REFDIV_MASK (0xF << 0)
+
+/* For UTMI_TX Register */
+#define UTMI_TX_REG_EXT_FS_RCAL_SHIFT 27
+#define UTMI_TX_REG_EXT_FS_RCAL_MASK (0xf << 27)
+
+#define UTMI_TX_REG_EXT_FS_RCAL_EN_SHIFT 26
+#define UTMI_TX_REG_EXT_FS_RCAL_EN_MASK (0x1 << 26)
+
+#define UTMI_TX_TXVDD12_SHIFT 22
+#define UTMI_TX_TXVDD12_MASK (0x3 << 22)
+
+#define UTMI_TX_CK60_PHSEL_SHIFT 17
+#define UTMI_TX_CK60_PHSEL_MASK (0xf << 17)
+
+#define UTMI_TX_IMPCAL_VTH_SHIFT 14
+#define UTMI_TX_IMPCAL_VTH_MASK (0x7 << 14)
+
+#define REG_RCAL_START (0x1 << 12)
+
+#define UTMI_TX_LOW_VDD_EN_SHIFT 11
+
+#define UTMI_TX_AMP_SHIFT 0
+#define UTMI_TX_AMP_MASK (0x7 << 0)
+
+/* For UTMI_RX Register */
+#define UTMI_REG_SQ_LENGTH_SHIFT 15
+#define UTMI_REG_SQ_LENGTH_MASK (0x3 << 15)
+
+#define UTMI_RX_SQ_THRESH_SHIFT 4
+#define UTMI_RX_SQ_THRESH_MASK (0xf << 4)
+
+#define UTMI_OTG_ADDON_OTG_ON (1 << 0)
+
+/* For MMP3 USB Phy */
+#define USB2_PLL_REG0 0x4
+#define USB2_PLL_REG1 0x8
+#define USB2_TX_REG0 0x10
+#define USB2_TX_REG1 0x14
+#define USB2_TX_REG2 0x18
+#define USB2_RX_REG0 0x20
+#define USB2_RX_REG1 0x24
+#define USB2_RX_REG2 0x28
+#define USB2_ANA_REG0 0x30
+#define USB2_ANA_REG1 0x34
+#define USB2_ANA_REG2 0x38
+#define USB2_DIG_REG0 0x3C
+#define USB2_DIG_REG1 0x40
+#define USB2_DIG_REG2 0x44
+#define USB2_DIG_REG3 0x48
+#define USB2_TEST_REG0 0x4C
+#define USB2_TEST_REG1 0x50
+#define USB2_TEST_REG2 0x54
+#define USB2_CHARGER_REG0 0x58
+#define USB2_OTG_REG0 0x5C
+#define USB2_PHY_MON0 0x60
+#define USB2_RESETVE_REG0 0x64
+#define USB2_ICID_REG0 0x78
+#define USB2_ICID_REG1 0x7C
+
+/* USB2_PLL_REG0 */
+/* This is for Ax stepping */
+#define USB2_PLL_FBDIV_SHIFT_MMP3 0
+#define USB2_PLL_FBDIV_MASK_MMP3 (0xFF << 0)
+
+#define USB2_PLL_REFDIV_SHIFT_MMP3 8
+#define USB2_PLL_REFDIV_MASK_MMP3 (0xF << 8)
+
+#define USB2_PLL_VDD12_SHIFT_MMP3 12
+#define USB2_PLL_VDD18_SHIFT_MMP3 14
+
+/* This is for B0 stepping */
+#define USB2_PLL_FBDIV_SHIFT_MMP3_B0 0
+#define USB2_PLL_REFDIV_SHIFT_MMP3_B0 9
+#define USB2_PLL_VDD18_SHIFT_MMP3_B0 14
+#define USB2_PLL_FBDIV_MASK_MMP3_B0 0x01FF
+#define USB2_PLL_REFDIV_MASK_MMP3_B0 0x3E00
+
+#define USB2_PLL_CAL12_SHIFT_MMP3 0
+#define USB2_PLL_CALI12_MASK_MMP3 (0x3 << 0)
+
+#define USB2_PLL_VCOCAL_START_SHIFT_MMP3 2
+
+#define USB2_PLL_KVCO_SHIFT_MMP3 4
+#define USB2_PLL_KVCO_MASK_MMP3 (0x7<<4)
+
+#define USB2_PLL_ICP_SHIFT_MMP3 8
+#define USB2_PLL_ICP_MASK_MMP3 (0x7<<8)
+
+#define USB2_PLL_LOCK_BYPASS_SHIFT_MMP3 12
+
+#define USB2_PLL_PU_PLL_SHIFT_MMP3 13
+#define USB2_PLL_PU_PLL_MASK (0x1 << 13)
+
+#define USB2_PLL_READY_MASK_MMP3 (0x1 << 15)
+
+/* USB2_TX_REG0 */
+#define USB2_TX_IMPCAL_VTH_SHIFT_MMP3 8
+#define USB2_TX_IMPCAL_VTH_MASK_MMP3 (0x7 << 8)
+
+#define USB2_TX_RCAL_START_SHIFT_MMP3 13
+
+/* USB2_TX_REG1 */
+#define USB2_TX_CK60_PHSEL_SHIFT_MMP3 0
+#define USB2_TX_CK60_PHSEL_MASK_MMP3 (0xf << 0)
+
+#define USB2_TX_AMP_SHIFT_MMP3 4
+#define USB2_TX_AMP_MASK_MMP3 (0x7 << 4)
+
+#define USB2_TX_VDD12_SHIFT_MMP3 8
+#define USB2_TX_VDD12_MASK_MMP3 (0x3 << 8)
+
+/* USB2_TX_REG2 */
+#define USB2_TX_DRV_SLEWRATE_SHIFT 10
+
+/* USB2_RX_REG0 */
+#define USB2_RX_SQ_THRESH_SHIFT_MMP3 4
+#define USB2_RX_SQ_THRESH_MASK_MMP3 (0xf << 4)
+
+#define USB2_RX_SQ_LENGTH_SHIFT_MMP3 10
+#define USB2_RX_SQ_LENGTH_MASK_MMP3 (0x3 << 10)
+
+/* USB2_ANA_REG1*/
+#define USB2_ANA_PU_ANA_SHIFT_MMP3 14
+
+/* USB2_OTG_REG0 */
+#define USB2_OTG_PU_OTG_SHIFT_MMP3 3
+
+/* fsic registers */
+#define FSIC_MISC 0x4
+#define FSIC_INT 0x28
+#define FSIC_CTRL 0x30
+
+/* HSIC registers */
+#define HSIC_PAD_CTRL 0x4
+
+#define HSIC_CTRL 0x8
+#define HSIC_CTRL_HSIC_ENABLE (1<<7)
+#define HSIC_CTRL_PLL_BYPASS (1<<4)
+
+#define TEST_GRP_0 0xc
+#define TEST_GRP_1 0x10
+
+#define HSIC_INT 0x14
+#define HSIC_INT_READY_INT_EN (1<<10)
+#define HSIC_INT_CONNECT_INT_EN (1<<9)
+#define HSIC_INT_CORE_INT_EN (1<<8)
+#define HSIC_INT_HS_READY (1<<2)
+#define HSIC_INT_CONNECT (1<<1)
+#define HSIC_INT_CORE (1<<0)
+
+#define HSIC_CONFIG 0x18
+#define USBHSIC_CTRL 0x20
+
+#define HSIC_USB_CTRL 0x28
+#define HSIC_USB_CTRL_CLKEN 1
+#define HSIC_USB_CLK_PHY 0x0
+#define HSIC_USB_CLK_PMU 0x1
+
+#endif /* __ASM_ARCH_PXA_U2O_H */
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index 43f8bcc29b6..6da52e9f2bd 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -109,7 +109,7 @@ static struct clk_lookup pxa910_clkregs[] = {
INIT_CLKREG(&clk_pwm4, "pxa910-pwm.3", NULL),
INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
- INIT_CLKREG(&clk_u2o, "pxa-u2o", "U2OCLK"),
+ INIT_CLKREG(&clk_u2o, NULL, "U2OCLK"),
INIT_CLKREG(&clk_rtc, "sa1100-rtc", NULL),
};