From: Marek Vasut <marek.va...@gmail.com>

This commit adds USB support for EfikaMX and EfikaSB. 

Signed-off-by: Marek Vasut <marek.va...@gmail.com>
Signed-off-by: Jana Rapava <ferma...@gmail.com>
---
Changes for v2:
        - changed to proper patch
Changes for v3:
        - merged other USB patches from u-boot-pxa/efikasb
        - offset-based access changed to struct-based access
        - use {clrset,clr,set}bits_le32() calls
        - CodingStyle and naming cleanup

 board/efikamx/Makefile      |    3 +
 board/efikamx/efikamx-usb.c |  349 +++++++++++++++++++++++++++++++++++++++++++
 board/efikamx/efikamx.c     |   10 ++
 drivers/usb/host/ehci-hcd.c |   19 +++
 drivers/usb/host/ehci-mxc.c |    9 +-
 include/configs/efikamx.h   |   35 ++++-
 include/usb/ehci-fsl.h      |  112 ++++++++++++++-
 7 files changed, 524 insertions(+), 13 deletions(-)
 create mode 100644 board/efikamx/efikamx-usb.c

diff --git a/board/efikamx/Makefile b/board/efikamx/Makefile
index ee4a16e..860e4d2 100644
--- a/board/efikamx/Makefile
+++ b/board/efikamx/Makefile
@@ -28,6 +28,9 @@ include $(TOPDIR)/config.mk
 LIB    = $(obj)lib$(BOARD).o
 
 COBJS  := efikamx.o
+ifdef  CONFIG_CMD_USB
+COBJS  += efikamx-usb.o
+endif
 
 SRCS   := $(SOBJS:.o=.S) $(COBJS:.o=.c)
 OBJS   := $(addprefix $(obj),$(COBJS))
diff --git a/board/efikamx/efikamx-usb.c b/board/efikamx/efikamx-usb.c
new file mode 100644
index 0000000..19227d4
--- /dev/null
+++ b/board/efikamx/efikamx-usb.c
@@ -0,0 +1,349 @@
+#include <common.h>
+#include <usb.h>
+#include <asm/io.h>
+#include <asm/arch/imx-regs.h>
+#include <asm/arch/mx5x_pins.h>
+#include <asm/arch/iomux.h>
+#include <asm/gpio.h>
+#include <usb/ehci-fsl.h>
+#include <errno.h>
+
+#include "../../drivers/usb/host/ehci.h"
+#include "../../drivers/usb/host/ehci-core.h"
+
+/*
+ * Configure the USB H1 and USB H2 IOMUX
+ */
+#define USB_PAD_CONFIG (PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST | \
+                       PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | \
+                       PAD_CTL_HYS_ENABLE | PAD_CTL_PUE_PULL)
+void setup_iomux_usb(void)
+{
+       /*
+        * Configure USBH1 pads
+        */
+       mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_CLK, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_CLK, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DIR, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DIR, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_NXT, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_NXT, USB_PAD_CONFIG);
+
+       mxc_request_iomux(MX51_PIN_USBH1_DATA0, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA0, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA1, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA1, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA2, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA2, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA3, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA3, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA4, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA4, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA5, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA5, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA6, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA6, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_USBH1_DATA7, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_DATA7, USB_PAD_CONFIG);
+
+       /*
+        * Configure USBH1 control pads
+        */
+
+       /* USB PHY reset */
+       mxc_request_iomux(MX51_PIN_EIM_D27, IOMUX_CONFIG_ALT1);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D27, PAD_CTL_PKE_ENABLE |
+                       PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH);
+
+       /* USB HUB reset */
+       mxc_request_iomux(MX51_PIN_GPIO1_5, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_GPIO1_5, PAD_CTL_PKE_ENABLE |
+                       PAD_CTL_SRE_FAST | PAD_CTL_DRV_HIGH);
+
+
+#ifdef CONFIG_MACH_EFIKASB
+       /*
+        * Configure USBH2 pads (used on EfikaSB)
+        */
+       /* USBH2_DATA */
+       mxc_request_iomux(MX51_PIN_EIM_D16, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D16, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D17, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D17, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D18, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D18, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D19, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D19, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D20, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D20, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D21, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D21, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D22, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D22, USB_PAD_CONFIG);
+       mxc_request_iomux(MX51_PIN_EIM_D23, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_D23, USB_PAD_CONFIG);
+
+       /* USBH2_CLK */
+       mxc_request_iomux(MX51_PIN_EIM_A24, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A24, USB_PAD_CONFIG);
+       /* USBH2_DIR */
+       mxc_request_iomux(MX51_PIN_EIM_A25, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A25, USB_PAD_CONFIG);
+       /* USBH2_STP */
+       mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A26, USB_PAD_CONFIG);
+       /* USBH2_NXT */
+       mxc_request_iomux(MX51_PIN_EIM_A27, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A27, USB_PAD_CONFIG);
+#endif
+
+       /* WIFI EN (act low) */
+       mxc_request_iomux(MX51_PIN_EIM_A22, IOMUX_CONFIG_GPIO);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A22, 0);
+       /* WIFI RESET */
+       mxc_request_iomux(MX51_PIN_EIM_A16, IOMUX_CONFIG_GPIO);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A16, 0);
+       /* BT EN (act low) */
+       mxc_request_iomux(MX51_PIN_EIM_A17, IOMUX_CONFIG_GPIO);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A17, 0);
+}
+
+/*
+ * Enable devices connected to USB BUSes
+ */
+void efika_usb_enable_devices(void)
+{
+       /* Enable Bluetooth */
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 0);
+       udelay(10000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A17), 1);
+
+       /* Enable WiFi */
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A22), 1);
+       udelay(10000);
+
+       /* Reset the WiFi chip */
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 0);
+       udelay(10000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A16), 1);
+}
+
+/*
+ * Reset USB HUB (or HUBs on EfikaSB)
+ */
+void efika_usb_hub_reset(void)
+{
+       /* HUB reset */
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1);
+       udelay(1000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 0);
+       udelay(1000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_GPIO1_5), 1);
+}
+
+/*
+ * Reset USB PHY (or PHYs on EfikaSB)
+ */
+void efika_usb_phy_reset(void)
+{
+       /* SMSC 3317 PHY reset */
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 0);
+       udelay(1000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_D27), 1);
+}
+
+/*
+ * Configure control registers of the USB controller
+ */
+void control_regs_setup(struct usb_control_regs *control)
+{
+       clrsetbits_le32(&control->usbctrl,
+                       (MXX1_OTG_WUE | MXX1_OTG_PM | MX51_H1_ULPI_IE | 
MX51_H1_WUE),
+                       MX51_H1_PM);
+
+       clrsetbits_le32(&control->phyctrl0,
+                       MX51_OTG_OVERCURD,
+                       MX51_EHCI_POWERPINSE);
+
+       clrsetbits_le32(&control->phyctrl1,
+                       MX51_SYSCLOCK_MASK,
+                       MX51_SYSCLOCK_24_MHZ);
+
+       setbits_le32(&control->usbctrl1, MX51_H1_EXTCLKE);
+
+       clrsetbits_le32(&control->uh2ctrl,
+                       (MX51_H2_ULPI_IE | MX51_H2_WUE),
+                       MX51_H2_PM);
+
+       udelay(10000);
+}
+
+#define ULPI_ADDR_SHIFT                16
+#define ulpi_write_mask(value) ((value) & 0xff)
+#define ulpi_read_mask(value)  (((value) >> 8) & 0xff)
+
+
+void ulpi_write(u32 reg, u32 value, struct usb_ehci *ehci)
+{
+       if (!(readl(&ehci->ulpi_viewpoint) & ULPI_SS)) {
+               writel(ULPI_WU, &ehci->ulpi_viewpoint);
+               while (readl(&ehci->ulpi_viewpoint) & ULPI_WU)
+               ;
+       }
+       writel(ULPI_RWRUN | ULPI_RWCTRL | reg << ULPI_ADDR_SHIFT | 
ulpi_write_mask(value),
+               &ehci->ulpi_viewpoint);
+
+       while (readl(&ehci->ulpi_viewpoint) & ULPI_RWRUN)
+       ;
+}
+
+u32 ulpi_read(u32 reg, struct usb_ehci *ehci)
+{
+       u32 tmp;
+       if (!(readl(&ehci->ulpi_viewpoint) & ULPI_SS)) {
+               writel(ULPI_WU, &ehci->ulpi_viewpoint);
+               while (readl(&ehci->ulpi_viewpoint) & ULPI_WU)
+               ;
+       }
+       writel(ULPI_RWRUN | reg << ULPI_ADDR_SHIFT, &ehci->ulpi_viewpoint);
+       do {
+               tmp = readl(&ehci->ulpi_viewpoint);
+       } while (tmp & ULPI_RWRUN);
+       return ulpi_read_mask(tmp);
+}
+
+void ehciX_init(u32 base, struct ulpi_regs *ulpi, struct usb_ehci *ehci)
+{
+       u32 tmp = 0;
+       int reg, i;
+
+       /* get ID from ULPI immediate registers*/
+       for (reg = ULPI_ID_REGS_COUNT - 1; reg >= 0; reg--)
+               tmp |= ulpi_read(reg, ehci) << (reg * 8);
+       /* split into vendor and product ID */
+       debug("Found ULPI TX, ID %04x:%04x\n", tmp >> 16, tmp & 0xffff);
+
+       /* ULPI check integrity */
+       for (i = 0; i < 2; i++) {
+               ulpi_write(&ulpi->scratch_write, 0x55 << i, ehci);
+               tmp = ulpi_read(&ulpi->scratch_write, ehci);
+
+               if (tmp != (0x55 << i)) {
+                       printf("ULPI integrity check failed\n");
+                       return;
+               }
+       }
+
+       /* ULPI set flags */
+       ulpi_write(&ulpi->otg_ctrl_write,
+               ULPI_OTG_EXT_VBUS_IND | ULPI_OTG_DM_PULLDOWN | 
ULPI_OTG_DP_PULLDOWN, ehci);
+       ulpi_write(&ulpi->function_ctrl_write,
+               ULPI_FC_XCVR_SELECT | ULPI_FC_OPMODE_NORMAL | 
ULPI_FC_SUSPENDM_PWRED, ehci);
+       ulpi_write(&ulpi->iface_ctrl_write, 0, ehci);
+       ulpi_write(&ulpi->otg_ctrl_set,
+               ULPI_OTG_DRV_VBUS | ULPI_OTG_DRV_VBUS_EXT, ehci);
+
+       /*
+        * NOTE: This violates USB specification, but otherwise, USB on Efika
+        * doesn't work.
+        */
+       ulpi_write(&ulpi->otg_ctrl_set, ULPI_OTG_CHRG_VBUS, ehci);
+}
+
+void ehci0_init(struct usb_ehci *ehci)
+{
+       setbits_le32(&ehci->portsc, MX51_16BIT_UTMI);
+}
+
+void ehci1_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi)
+{
+       mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_STP, PAD_CTL_DRV_HIGH |
+                               PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 0);
+       udelay(1000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_USBH1_STP), 1);
+       udelay(1000);
+
+       mxc_request_iomux(MX51_PIN_USBH1_STP, IOMUX_CONFIG_ALT0);
+       mxc_iomux_set_pad(MX51_PIN_USBH1_STP, USB_PAD_CONFIG);
+       udelay(10000);
+
+       clrbits_le32(&ehci->usbcmd, MX51_ITC_IMMEDIATE_MASK);
+       udelay(10000);
+
+       writel(MX51_ULPI_MODE_MASK, &ehci->portsc);
+       udelay(10000);
+
+       ehciX_init(OTG_BASE_ADDR + MX51_UH1_ID, ulpi, ehci);
+}
+
+
+void ehci2_init(struct usb_ehci *ehci, struct ulpi_regs *ulpi)
+{
+       mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT1);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A26, PAD_CTL_DRV_HIGH |
+                               PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
+       gpio_direction_output(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 0);
+       udelay(1000);
+       gpio_set_value(IOMUX_TO_GPIO(MX51_PIN_EIM_A26), 1);
+       udelay(1000);
+
+       mxc_request_iomux(MX51_PIN_EIM_A26, IOMUX_CONFIG_ALT2);
+       mxc_iomux_set_pad(MX51_PIN_EIM_A26, USB_PAD_CONFIG);
+
+       setbits_le32(&ehci->portsc, MX51_ULPI_MODE_MASK);
+       udelay(10000);
+
+       ehciX_init(OTG_BASE_ADDR + MX51_UH2_ID, ulpi, ehci);
+}
+
+int ehci_hcd_init(void)
+{
+       struct usb_ehci *ehci;
+       struct usb_control_regs *control;
+       struct ulpi_regs *ulpi;
+
+       /* Init iMX51 EHCI */
+       efika_usb_phy_reset();
+       efika_usb_hub_reset();
+       efika_usb_enable_devices();
+
+       control = (struct usb_control_regs *)(OTG_BASE_ADDR +
+                MX51_CTRL_REGS);
+       control_regs_setup(control);
+
+       ulpi = (struct ulpi_regs *)(0);
+       /* Init EHCI core */
+       ehci = (struct usb_ehci *)(OTG_BASE_ADDR +
+               (MX51_REGISTER_LAYOUT_LENGTH * CONFIG_MXC_USB_PORT));
+       hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
+       hcor = (struct ehci_hcor *)((uint32_t) hccr +
+                       HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
+       setbits_le32(&ehci->usbmode, CM_HOST);
+       setbits_le32(&ehci->control, USB_EN);
+
+       switch (CONFIG_MXC_USB_PORT) {
+       case 0:
+               ehci0_init(ehci);
+       case 1:
+               ehci1_init(ehci, ulpi);
+#ifdef MACH_EFIKASB
+       case 2:
+               ehci2_init(ehci, ulpi);
+#endif
+       };
+
+       /* EfikaMX USB has issues ... */
+       udelay(10000);
+
+
+       return 0;
+}
+
+int ehci_hcd_stop(void)
+{
+       return 0;
+}
diff --git a/board/efikamx/efikamx.c b/board/efikamx/efikamx.c
index 5be1f6c..0f84ae0 100644
--- a/board/efikamx/efikamx.c
+++ b/board/efikamx/efikamx.c
@@ -489,6 +489,15 @@ static inline void setup_iomux_ata(void) { }
 #endif
 
 /*
+ * EHCI USB
+ */
+#ifdef CONFIG_CMD_USB
+extern void setup_iomux_usb(void);
+#else
+static inline void setup_iomux_usb(void) { }
+#endif
+
+/*
  * LED configuration
  */
 void setup_iomux_led(void)
@@ -621,6 +630,7 @@ int board_late_init(void)
 
        setup_iomux_led();
        setup_iomux_ata();
+       setup_iomux_usb();
 
        efikamx_toggle_led(EFIKAMX_LED_BLUE);
 
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 2197119..52b98c2 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -26,6 +26,7 @@
 #include <asm/io.h>
 #include <malloc.h>
 #include <watchdog.h>
+#include <usb/ehci-fsl.h>
 
 #include "ehci.h"
 
@@ -709,8 +710,26 @@ ehci_submit_root(struct usb_device *dev, unsigned long 
pipe, void *buffer,
                                 * usb 2.0 specification say 50 ms resets on
                                 * root
                                 */
+                               /* wait_ms(50); */
+
+#if 1
+       struct usb_ehci *ehci = (struct usb_ehci *)(OTG_BASE_ADDR +
+               (MX51_REGISTER_LAYOUT_LENGTH));
+       extern u32 ulpi_read(u32 reg, struct usb_ehci *ehci);
+       extern void ulpi_write(u32 reg, u32 value, struct usb_ehci *ehci);
+       #define XXBASE 0x73f80200
+       /* OTG |= 1 << 4 */
+       u32 tmp = ulpi_read(0x0a, ehci);
+       tmp |= (1 << 4);
+       ulpi_write(0x0a, tmp, ehci);
+
                                wait_ms(50);
+
+
                                /* terminate the reset */
+       reg = ehci_readl(status_reg);
+       reg |= EHCI_PS_PE;
+#endif
                                ehci_writel(status_reg, reg & ~EHCI_PS_PR);
                                /*
                                 * A host controller must terminate the reset
diff --git a/drivers/usb/host/ehci-mxc.c b/drivers/usb/host/ehci-mxc.c
index a0cfbb7..de7ed00 100644
--- a/drivers/usb/host/ehci-mxc.c
+++ b/drivers/usb/host/ehci-mxc.c
@@ -37,9 +37,6 @@
 #endif
 
 #ifdef CONFIG_MX31
-#define MX31_OTG_SIC_SHIFT     29
-#define MX31_OTG_SIC_MASK      (0x3 << MX31_OTG_SIC_SHIFT)
-#define MX31_OTG_PM_BIT                (1 << 24)
 
 #define MX31_H2_SIC_SHIFT      21
 #define MX31_H2_SIC_MASK       (0x3 << MX31_H2_SIC_SHIFT)
@@ -66,11 +63,11 @@ static int mxc_set_usbcontrol(int port, unsigned int flags)
 
                switch (port) {
                case 0: /* OTG port */
-                       v &= ~(MX31_OTG_SIC_MASK | MX31_OTG_PM_BIT);
+                       v &= ~(MXX1_OTG_SIC_MASK | MXX1_OTG_PM_BIT);
                        v |= (flags & MXC_EHCI_INTERFACE_MASK)
-                                       << MX31_OTG_SIC_SHIFT;
+                                       << MXX1_OTG_SIC_SHIFT;
                        if (!(flags & MXC_EHCI_POWER_PINS_ENABLED))
-                               v |= MX31_OTG_PM_BIT;
+                               v |= MXX1_OTG_PM_BIT;
 
                        break;
                case 1: /* H1 port */
diff --git a/include/configs/efikamx.h b/include/configs/efikamx.h
index b90e342..9cbb024 100644
--- a/include/configs/efikamx.h
+++ b/include/configs/efikamx.h
@@ -40,6 +40,10 @@
 
 #define CONFIG_SYS_TEXT_BASE           0x97800000
 
+#define        CONFIG_L2_OFF
+#define        CONFIG_SYS_ICACHE_OFF
+#define        CONFIG_SYS_DCACHE_OFF
+
 /*
  * Bootloader Components Configuration
  */
@@ -49,6 +53,8 @@
 #define CONFIG_CMD_FAT
 #define CONFIG_CMD_EXT2
 #define CONFIG_CMD_IDE
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_DATE
 #undef CONFIG_CMD_IMLS
 
 /*
@@ -168,17 +174,34 @@
 #endif
 
 /*
+ * USB
+ */
+#define CONFIG_CMD_USB
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_EHCI                        /* Enable EHCI USB support */
+#define CONFIG_MXC_USB_PORT    1
+#define CONFIG_EHCI_IS_TDI
+#define CONFIG_USB_STORAGE
+#define        CONFIG_USB_HOST_ETHER
+#define        CONFIG_USB_KEYBOARD
+/* USB NET */
+#ifdef CONFIG_CMD_NET
+#define        CONFIG_USB_ETHER_ASIX
+#define        CONFIG_NET_MULTI
+#define        CONFIG_CMD_PING
+#define        CONFIG_CMD_DHCP
+#endif
+#endif /* CONFIG_CMD_USB */
+
+/*
  * Filesystems
  */
 #ifdef CONFIG_CMD_FAT
 #define CONFIG_DOS_PARTITION
+#ifdef CONFIG_CMD_NET
+#define        CONFIG_CMD_NFS
+#endif
 #endif
-
-#undef CONFIG_CMD_PING
-#undef CONFIG_CMD_DHCP
-#undef CONFIG_CMD_NET
-#undef CONFIG_CMD_NFS
-#define CONFIG_CMD_DATE
 
 /*
  * Miscellaneous configurable options
diff --git a/include/usb/ehci-fsl.h b/include/usb/ehci-fsl.h
index 67600ed..9360ba5 100644
--- a/include/usb/ehci-fsl.h
+++ b/include/usb/ehci-fsl.h
@@ -169,6 +169,78 @@
 #define CONFIG_SYS_FSL_USB_ADDR CONFIG_SYS_MPC512x_USB_ADDR
 #endif
 
+
+#ifdef CONFIG_MX51 || CONFIG_MX31
+/* USB_CTRL register bits of interest*/
+#define MXX1_OTG_SIC_SHIFT     29
+#define MXX1_OTG_SIC_MASK      (0x3 << MX31_OTG_SIC_SHIFT)
+#define MXX1_OTG_WUE           (1 << 27)
+#define MXX1_OTG_PM            (1 << 24)
+#endif
+
+#ifdef CONFIG_MX51
+#define MX51_REGISTER_LAYOUT_LENGTH    0x200
+
+/* Register offsets for MX51 */
+#define MX51_OTG_ID    0x000
+#define MX51_UH1_ID    0x200
+#define MX51_UH2_ID    0x400
+#define MX51_CTRL_REGS 0x800
+
+/* USB_CTRL register bits of interest*/
+#define MX51_OTG_PM            (1 << 24)
+#define MX51_H1_ULPI_IE                (1 << 12)
+#define MX51_H1_WUE            (1 << 11)
+#define MX51_H1_PM             (1 << 8)
+
+/* PHY_CTRL_0 register bits of interest */
+#define MX51_OTG_OVERCURD      (1 << 8)
+#define MX51_EHCI_POWERPINSE   (1 << 5)
+
+/* PHY_CTRL_1 register bits of interest */
+#define MX51_SYSCLOCK_24_MHZ   (1 << 0)
+#define MX51_SYSCLOCK_MASK     (~(0xffffffff << 2))
+
+/* USB_CTRL_1 register bits of interest */
+#define MX51_H1_EXTCLKE                (1 << 25)
+
+/* USB Host 2 CTRL register bits of interest */
+#define MX51_H2_ULPI_IE                (1 << 8)
+#define MX51_H2_WUE            (1 << 7)
+#define MX51_H2_PM             (1 << 4)
+
+/* PORTSCx bits of interest */
+#define MX51_ULPI_MODE_MASK    (2 << 30)
+#define MX51_16BIT_UTMI                (1 << 28)
+
+/* USBCMD bits of interest */
+#define MX51_ITC_IMMEDIATE_MASK        (0xff << 16)
+#endif
+
+/*
+* ULPI
+*/
+#define ULPI_ID_REGS_COUNT     4
+
+/* ULPI viewport control bits */
+#define ULPI_WU                (1 << 31)
+#define ULPI_SS                (1 << 27)
+#define ULPI_RWRUN     (1 << 30)
+#define ULPI_RWCTRL    (1 << 29)
+
+/* ULPI OTG Control bits of interest */
+#define ULPI_OTG_EXT_VBUS_IND  (1 << 7)
+#define ULPI_OTG_DM_PULLDOWN   (1 << 2)
+#define ULPI_OTG_DP_PULLDOWN   (1 << 1)
+#define        ULPI_OTG_DRV_VBUS       (1 << 5)
+#define ULPI_OTG_DRV_VBUS_EXT  (1 << 6)
+#define ULPI_OTG_CHRG_VBUS     (1 << 4)
+
+/* ULPI Function Control bits of interest */
+#define ULPI_FC_XCVR_SELECT    (1 << 0)
+#define ULPI_FC_OPMODE_NORMAL  (0 << 3)
+#define ULPI_FC_SUSPENDM_PWRED (1 << 6)
+
 /*
  * USB Registers
  */
@@ -210,7 +282,7 @@ struct usb_ehci {
        u32     txfilltuning;   /* 0x164 - Host TT Transmit
                                           pre-buffer packet tuning */
        u8      res7[0x8];
-       u32     ulpi_viewpoint; /* 0x170 - ULPI Reister Access */
+       u32     ulpi_viewpoint; /* 0x170 - ULPI Register Access */
        u8      res8[0xc];
        u32     config_flag;    /* 0x180 - Configured Flag Register */
        u32     portsc;         /* 0x184 - Port status/control */
@@ -242,4 +314,42 @@ struct usb_ehci {
        u8      res13[0xafc];
 };
 
+struct usb_control_regs {
+       u32     usbctrl;        /* 0x800 - USB Control */
+       u32     otgmirror;      /* 0x804 - OTG Port Mirror */
+       u32     phyctrl0;       /* 0x808 - UTMI PHY Control Register 0 */
+       u32     phyctrl1;       /* 0x80C - UTMI PHY Control Register 1 */
+       u32     usbctrl1;       /* 0x810 - USB Control Register 1 */
+       u32     uh2ctrl;        /* 0x814 - USB Host2 Control */
+       u32     uh3ctrl;        /* 0x818 - USB Host3 Control */
+};
+
+struct ulpi_regs {
+       u8      vendor_id_low;          /* 0x00 - Vendor ID lower byte */
+       u8      vendor_id_high;         /* 0x01 - Vendor ID upper byte */
+       u8      product_id_low;         /* 0x02 - Product ID lower byte */
+       u8      product_id_high;        /* 0x03 - Product ID higher byte */
+       u8      function_ctrl_write;    /* Function Control; 0x04 - 0x06 Read, 
0x04 Write */
+       u8      function_ctrl_set;      /* 0x05 Set */
+       u8      function_ctrl_clear;    /* 0x06 Clear */
+       u8      iface_ctrl_write;       /* Interface Control; 0x07 - 0x09 Read, 
0x07 Write */
+       u8      iface_ctrl_set;         /* 0x08 Set */
+       u8      iface_ctrl_clear;       /* 0x09 Clear */
+       u8      otg_ctrl_write;         /* OTG Control; 0x0A - 0x0C Read, 0x0A 
Write */
+       u8      otg_ctrl_set;           /* 0x0B Set */
+       u8      otg_ctrl_clear;         /* 0x0C Clear */
+       u8      usb_ie_rising_write;    /* USB Interrupt Enable Rising; 0x0D - 
0x0F Read, 0x0D Write */
+       u8      usb_ie_rising_set;      /* 0x0E Set */
+       u8      usb_ie_rising_clear;    /* 0x0F Clear */
+       u8      usb_ie_falling_write;   /* USB Interrupt Enable Falling; 0x10 - 
0x12 Read, 0x10 Write */
+       u8      usb_ie_falling_set;     /* 0x11 Set */
+       u8      usb_ie_falling_clear;   /* 0x12 Clear */
+       u8      usb_int_status;         /* 0x13 - USB Interrupt Status */
+       u8      usb_int_latch;          /* 0x14 - USB Interrupt Latch */
+       u8      debug;                  /* 0x15 - Debug */
+       u8      scratch_write;          /* Scratch Register; 0x16 - 0x18 Read, 
0x16 Write */
+       u8      scratch_set;            /* 0x17 Set */
+       u8      scratch_clear;          /* 0x18 */
+};
+
 #endif /* _EHCI_FSL_H */
-- 
1.7.6.3

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