packages: clean up the package folder
[openwrt/openwrt.git] / package / kernel / lantiq / ltq-adsl-mei / src / lantiq_mei.c
diff --git a/package/kernel/lantiq/ltq-adsl-mei/src/lantiq_mei.c b/package/kernel/lantiq/ltq-adsl-mei/src/lantiq_mei.c
new file mode 100644 (file)
index 0000000..443b9d9
--- /dev/null
@@ -0,0 +1,2805 @@
+/******************************************************************************
+
+                               Copyright (c) 2009
+                            Infineon Technologies AG
+                     Am Campeon 1-12; 81726 Munich, Germany
+
+  For licensing information, see the file 'LICENSE' in the root folder of
+  this software module.
+
+******************************************************************************/
+
+/*!
+  \defgroup AMAZON_S_MEI Amazon-S MEI Driver Module
+  \brief Amazon-S MEI driver module
+ */
+
+/*!
+  \defgroup Internal Compile Parametere
+  \ingroup AMAZON_S_MEI
+  \brief exported functions for other driver use
+ */
+
+/*!
+  \file amazon_s_mei_bsp.c
+  \ingroup AMAZON_S_MEI
+  \brief Amazon-S MEI driver file
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/version.h>
+#include <generated/utsrelease.h>
+#include <linux/types.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/errno.h>
+#include <linux/interrupt.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/sched.h>
+#include <linux/platform_device.h>
+#include <asm/uaccess.h>
+#include <asm/hardirq.h>
+
+#include "lantiq_atm.h"
+#include <lantiq_soc.h>
+//#include "ifxmips_atm.h"
+#define IFX_MEI_BSP
+#include "ifxmips_mei_interface.h"
+
+/*#define LTQ_RCU_RST                   IFX_RCU_RST_REQ
+#define LTQ_RCU_RST_REQ_ARC_JTAG      IFX_RCU_RST_REQ_ARC_JTAG
+#define LTQ_RCU_RST_REQ_DFE              IFX_RCU_RST_REQ_DFE
+#define LTQ_RCU_RST_REQ_AFE              IFX_RCU_RST_REQ_AFE
+#define IFXMIPS_FUSE_BASE_ADDR            IFX_FUSE_BASE_ADDR
+#define IFXMIPS_ICU_IM0_IER               IFX_ICU_IM0_IER
+#define IFXMIPS_ICU_IM2_IER               IFX_ICU_IM2_IER
+#define LTQ_MEI_INT                   IFX_MEI_INT
+#define LTQ_MEI_DYING_GASP_INT        IFX_MEI_DYING_GASP_INT
+#define LTQ_MEI_BASE_ADDR                IFX_MEI_SPACE_ACCESS
+#define IFXMIPS_PMU_PWDCR                IFX_PMU_PWDCR
+#define IFXMIPS_MPS_CHIPID                IFX_MPS_CHIPID
+
+#define ifxmips_port_reserve_pin         ifx_gpio_pin_reserve
+#define ifxmips_port_set_dir_in                  ifx_gpio_dir_in_set
+#define ifxmips_port_clear_altsel0        ifx_gpio_altsel0_set
+#define ifxmips_port_clear_altsel1       ifx_gpio_altsel1_clear
+#define ifxmips_port_set_open_drain       ifx_gpio_open_drain_clear
+#define ifxmips_port_free_pin            ifx_gpio_pin_free
+#define ifxmips_mask_and_ack_irq         bsp_mask_and_ack_irq
+#define IFXMIPS_MPS_CHIPID_VERSION_GET    IFX_MCD_CHIPID_VERSION_GET
+#define ltq_r32(reg)                        __raw_readl(reg)
+#define ltq_w32(val, reg)                   __raw_writel(val, reg)
+#define ltq_w32_mask(clear, set, reg)       ltq_w32((ltq_r32(reg) & ~clear) | set, reg)
+*/
+
+#define LTQ_RCU_BASE_ADDR   0x1F203000
+#define LTQ_ICU_BASE_ADDR       0x1F880200
+#define LTQ_MEI_BASE_ADDR       0x1E116000
+#define LTQ_PMU_BASE_ADDR       0x1F102000
+#define LTQ_MEI_DYING_GASP_INT  (INT_NUM_IM1_IRL0 + 21)
+#define LTQ_USB_OC_INT          (INT_NUM_IM4_IRL0 + 23)
+#define LTQ_MEI_INT             (INT_NUM_IM1_IRL0 + 23)
+
+#define LTQ_RCU_RST_REQ_DFE            (1 << 7)
+#define LTQ_RCU_RST_REQ_AFE            (1 << 11)
+
+#define LTQ_PMU_BASE           (KSEG1 + LTQ_PMU_BASE_ADDR)
+#define LTQ_RCU_BASE           (KSEG1 + LTQ_RCU_BASE_ADDR)
+#define LTQ_ICU_BASE           (KSEG1 + LTQ_ICU_BASE_ADDR)
+
+#define LTQ_PMU_PWDCR        ((u32 *)(LTQ_PMU_BASE + 0x001C))
+#define LTQ_PMU_PWDSR        ((u32 *)(LTQ_PMU_BASE + 0x0020))
+#define LTQ_RCU_RST          ((u32 *)(LTQ_RCU_BASE + 0x0010))
+#define LTQ_RCU_RST_ALL      0x40000000
+
+#define LTQ_ICU_IM0_ISR      ((u32 *)(LTQ_ICU_BASE + 0x0000))
+#define LTQ_ICU_IM0_IER      ((u32 *)(LTQ_ICU_BASE + 0x0008))
+#define LTQ_ICU_IM0_IOSR     ((u32 *)(LTQ_ICU_BASE + 0x0010))
+#define LTQ_ICU_IM0_IRSR     ((u32 *)(LTQ_ICU_BASE + 0x0018))
+#define LTQ_ICU_IM0_IMR      ((u32 *)(LTQ_ICU_BASE + 0x0020))
+
+
+#define LTQ_ICU_IM1_ISR      ((u32 *)(LTQ_ICU_BASE + 0x0028))
+#define LTQ_ICU_IM2_ISR      ((u32 *)(LTQ_ICU_BASE + 0x0050))
+#define LTQ_ICU_IM3_ISR      ((u32 *)(LTQ_ICU_BASE + 0x0078))
+#define LTQ_ICU_IM4_ISR      ((u32 *)(LTQ_ICU_BASE + 0x00A0))
+
+#define LTQ_ICU_OFFSET       (LTQ_ICU_IM1_ISR - LTQ_ICU_IM0_ISR)
+#define LTQ_ICU_IM2_IER                (LTQ_ICU_IM0_IER + LTQ_ICU_OFFSET)
+
+#define IFX_MEI_EMSG(fmt, args...) pr_err("[%s %d]: " fmt,__FUNCTION__, __LINE__, ## args)
+#define IFX_MEI_DMSG(fmt, args...) pr_debug("[%s %d]: " fmt,__FUNCTION__, __LINE__, ## args)
+
+#define LTQ_FUSE_BASE          (KSEG1 + 0x1F107354)
+
+#ifdef CONFIG_LTQ_MEI_FW_LOOPBACK
+//#define DFE_MEM_TEST
+//#define DFE_PING_TEST
+#define DFE_ATM_LOOPBACK
+
+
+#ifdef DFE_ATM_LOOPBACK
+#include <asm/ifxmips/ifxmips_mei_fw_loopback.h>
+#endif
+
+void dfe_loopback_irq_handler (DSL_DEV_Device_t *pDev);
+
+#endif //CONFIG_AMAZON_S_MEI_FW_LOOPBACK
+
+DSL_DEV_Version_t bsp_mei_version = {
+       major:  5,
+       minor:  0,
+       revision:0
+};
+DSL_DEV_HwVersion_t bsp_chip_info;
+
+#define IFX_MEI_DEVNAME "ifx_mei"
+#define BSP_MAX_DEVICES 1
+#define MEI_DIRNAME "ifxmips_mei"
+
+DSL_DEV_MeiError_t DSL_BSP_FWDownload (DSL_DEV_Device_t *, const char *, unsigned long, long *, long *);
+DSL_DEV_MeiError_t DSL_BSP_Showtime (DSL_DEV_Device_t *, DSL_uint32_t, DSL_uint32_t);
+DSL_DEV_MeiError_t DSL_BSP_AdslLedInit (DSL_DEV_Device_t *, DSL_DEV_LedId_t, DSL_DEV_LedType_t, DSL_DEV_LedHandler_t);
+//DSL_DEV_MeiError_t DSL_BSP_AdslLedSet (DSL_DEV_Device_t *, DSL_DEV_LedId_t, DSL_DEV_LedMode_t);
+DSL_DEV_MeiError_t DSL_BSP_MemoryDebugAccess (DSL_DEV_Device_t *, DSL_BSP_MemoryAccessType_t, DSL_uint32_t, DSL_uint32_t*, DSL_uint32_t);
+DSL_DEV_MeiError_t DSL_BSP_SendCMV (DSL_DEV_Device_t *, u16 *, int, u16 *);
+
+int DSL_BSP_KernelIoctls (DSL_DEV_Device_t *, unsigned int, unsigned long);
+
+static DSL_DEV_MeiError_t IFX_MEI_RunAdslModem (DSL_DEV_Device_t *);
+static DSL_DEV_MeiError_t IFX_MEI_CpuModeSet (DSL_DEV_Device_t *, DSL_DEV_CpuMode_t);
+static DSL_DEV_MeiError_t IFX_MEI_DownloadBootCode (DSL_DEV_Device_t *);
+static DSL_DEV_MeiError_t IFX_MEI_ArcJtagEnable (DSL_DEV_Device_t *, int);
+static DSL_DEV_MeiError_t IFX_MEI_AdslMailboxIRQEnable (DSL_DEV_Device_t *, int);
+
+static int IFX_MEI_GetPage (DSL_DEV_Device_t *, u32, u32, u32, u32 *, u32 *);
+static int IFX_MEI_BarUpdate (DSL_DEV_Device_t *, int);
+
+static ssize_t IFX_MEI_Write (DSL_DRV_file_t *, const char *, size_t, loff_t *);
+static long IFX_MEI_UserIoctls (DSL_DRV_file_t *, unsigned int, unsigned long);
+static int IFX_MEI_Open (DSL_DRV_inode_t *, DSL_DRV_file_t *);
+static int IFX_MEI_Release (DSL_DRV_inode_t *, DSL_DRV_file_t *);
+
+void AMAZON_SE_MEI_ARC_MUX_Test(void);
+
+void IFX_MEI_ARC_MUX_Test(void);
+
+static int adsl_dummy_ledcallback(void);
+
+int (*ifx_mei_atm_showtime_enter)(struct port_cell_info *, void *) = NULL;
+EXPORT_SYMBOL(ifx_mei_atm_showtime_enter);
+
+int (*ifx_mei_atm_showtime_exit)(void) = NULL;
+EXPORT_SYMBOL(ifx_mei_atm_showtime_exit);
+
+static int (*g_adsl_ledcallback)(void) = adsl_dummy_ledcallback;
+
+static unsigned int g_tx_link_rate[2] = {0};
+
+static void *g_xdata_addr = NULL;
+
+static u32 *mei_arc_swap_buff = NULL;  //  holding swap pages
+
+extern void ltq_mask_and_ack_irq(struct irq_data *d);
+static void inline MEI_MASK_AND_ACK_IRQ(int x)
+{
+       struct irq_data d;
+       d.hwirq = x;
+       ltq_mask_and_ack_irq(&d);
+}
+#define MEI_MAJOR      105
+static int dev_major = MEI_MAJOR;
+
+static struct file_operations bsp_mei_operations = {
+      owner:THIS_MODULE,
+      open:IFX_MEI_Open,
+      release:IFX_MEI_Release,
+      write:IFX_MEI_Write,
+      unlocked_ioctl:IFX_MEI_UserIoctls,
+};
+
+static DSL_DEV_Device_t dsl_devices[BSP_MAX_DEVICES];
+
+static ifx_mei_device_private_t
+       sDanube_Mei_Private[BSP_MAX_DEVICES];
+
+static DSL_BSP_EventCallBack_t dsl_bsp_event_callback[DSL_BSP_CB_LAST + 1];
+
+/**
+ * Write a value to register
+ * This function writes a value to danube register
+ *
+ * \param      ul_address      The address to write
+ * \param      ul_data         The value to write
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_LongWordWrite (u32 ul_address, u32 ul_data)
+{
+       IFX_MEI_WRITE_REGISTER_L (ul_data, ul_address);
+       wmb();
+       return;
+}
+
+/**
+ * Write a value to register
+ * This function writes a value to danube register
+ *
+ * \param      pDev            the device pointer
+ * \param      ul_address      The address to write
+ * \param      ul_data         The value to write
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_LongWordWriteOffset (DSL_DEV_Device_t * pDev, u32 ul_address,
+                                  u32 ul_data)
+{
+       IFX_MEI_WRITE_REGISTER_L (ul_data, pDev->base_address + ul_address);
+       wmb();
+       return;
+}
+
+/**
+ * Read the danube register
+ * This function read the value from danube register
+ *
+ * \param      ul_address      The address to write
+ * \param      pul_data        Pointer to the data
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_LongWordRead (u32 ul_address, u32 * pul_data)
+{
+       *pul_data = IFX_MEI_READ_REGISTER_L (ul_address);
+       rmb();
+       return;
+}
+
+/**
+ * Read the danube register
+ * This function read the value from danube register
+ *
+ * \param      pDev            the device pointer
+ * \param      ul_address      The address to write
+ * \param      pul_data        Pointer to the data
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_LongWordReadOffset (DSL_DEV_Device_t * pDev, u32 ul_address,
+                                 u32 * pul_data)
+{
+       *pul_data = IFX_MEI_READ_REGISTER_L (pDev->base_address + ul_address);
+       rmb();
+       return;
+}
+
+/**
+ * Write several DWORD datas to ARC memory via ARC DMA interface
+ * This function writes several DWORD datas to ARC memory via DMA interface.
+ *
+ * \param      pDev            the device pointer
+ * \param      destaddr        The address to write
+ * \param      databuff        Pointer to the data buffer
+ * \param      databuffsize    Number of DWORDs to write
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_DMAWrite (DSL_DEV_Device_t * pDev, u32 destaddr,
+                       u32 * databuff, u32 databuffsize)
+{
+       u32 *p = databuff;
+       u32 temp;
+
+       if (destaddr & 3)
+               return DSL_DEV_MEI_ERR_FAILURE;
+
+       //      Set the write transfer address
+       IFX_MEI_LongWordWriteOffset (pDev, ME_DX_AD, destaddr);
+
+       //      Write the data pushed across DMA
+       while (databuffsize--) {
+               temp = *p;
+               if (destaddr == MEI_TO_ARC_MAILBOX)
+                       MEI_HALF_WORD_SWAP (temp);
+               IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DX_DATA, temp);
+               p++;
+       }
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+
+}
+
+/**
+ * Read several DWORD datas from ARC memory via ARC DMA interface
+ * This function reads several DWORD datas from ARC memory via DMA interface.
+ *
+ * \param      pDev            the device pointer
+ * \param      srcaddr         The address to read
+ * \param      databuff        Pointer to the data buffer
+ * \param      databuffsize    Number of DWORDs to read
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_DMARead (DSL_DEV_Device_t * pDev, u32 srcaddr, u32 * databuff,
+                      u32 databuffsize)
+{
+       u32 *p = databuff;
+       u32 temp;
+
+       if (srcaddr & 3)
+               return DSL_DEV_MEI_ERR_FAILURE;
+
+       //      Set the read transfer address
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DX_AD, srcaddr);
+
+       //      Read the data popped across DMA
+       while (databuffsize--) {
+               IFX_MEI_LongWordReadOffset (pDev, (u32) ME_DX_DATA, &temp);
+               if (databuff == (u32 *) DSL_DEV_PRIVATE(pDev)->CMV_RxMsg)       // swap half word
+                       MEI_HALF_WORD_SWAP (temp);
+               *p = temp;
+               p++;
+       }
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+
+}
+
+/**
+ * Switch the ARC control mode
+ * This function switchs the ARC control mode to JTAG mode or MEI mode
+ *
+ * \param      pDev            the device pointer
+ * \param      mode            The mode want to switch: JTAG_MASTER_MODE or MEI_MASTER_MODE.
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_ControlModeSet (DSL_DEV_Device_t * pDev, int mode)
+{
+       u32 temp = 0x0;
+
+       IFX_MEI_LongWordReadOffset (pDev, (u32) ME_DBG_MASTER, &temp);
+       switch (mode) {
+       case JTAG_MASTER_MODE:
+               temp &= ~(HOST_MSTR);
+               break;
+       case MEI_MASTER_MODE:
+               temp |= (HOST_MSTR);
+               break;
+       default:
+               IFX_MEI_EMSG ("IFX_MEI_ControlModeSet: unkonwn mode [%d]\n", mode);
+               return;
+       }
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_MASTER, temp);
+}
+
+/**
+ * Disable ARC to MEI interrupt
+ *
+ * \param      pDev            the device pointer
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_IRQDisable (DSL_DEV_Device_t * pDev)
+{
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_MASK,  0x0);
+}
+
+/**
+ * Eable ARC to MEI interrupt
+ *
+ * \param      pDev            the device pointer
+ * \ingroup    Internal
+ */
+static void
+IFX_MEI_IRQEnable (DSL_DEV_Device_t * pDev)
+{
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_MASK, MSGAV_EN);
+}
+
+/**
+ * Poll for transaction complete signal
+ * This function polls and waits for transaction complete signal.
+ *
+ * \param      pDev            the device pointer
+ * \ingroup    Internal
+ */
+static void
+meiPollForDbgDone (DSL_DEV_Device_t * pDev)
+{
+       u32 query = 0;
+       int i = 0;
+
+       while (i < WHILE_DELAY) {
+               IFX_MEI_LongWordReadOffset (pDev, (u32) ME_ARC2ME_STAT,  &query);
+               query &= (ARC_TO_MEI_DBG_DONE);
+               if (query)
+                       break;
+               i++;
+               if (i == WHILE_DELAY) {
+                       IFX_MEI_EMSG ("PollforDbg fail!\n");
+               }
+       }
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_STAT, ARC_TO_MEI_DBG_DONE);  // to clear this interrupt
+}
+
+/**
+ * ARC Debug Memory Access for a single DWORD reading.
+ * This function used for direct, address-based access to ARC memory.
+ *
+ * \param      pDev            the device pointer
+ * \param      DEC_mode        ARC memory space to used
+ * \param      address         Address to read
+ * \param      data            Pointer to data
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+_IFX_MEI_DBGLongWordRead (DSL_DEV_Device_t * pDev, u32 DEC_mode,
+                               u32 address, u32 * data)
+{
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_DECODE, DEC_mode);
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_RD_AD, address);
+       meiPollForDbgDone (pDev);
+       IFX_MEI_LongWordReadOffset (pDev, (u32) ME_DBG_DATA, data);
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * ARC Debug Memory Access for a single DWORD writing.
+ * This function used for direct, address-based access to ARC memory.
+ *
+ * \param      pDev            the device pointer
+ * \param      DEC_mode        ARC memory space to used
+ * \param      address         The address to write
+ * \param      data            The data to write
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+_IFX_MEI_DBGLongWordWrite (DSL_DEV_Device_t * pDev, u32 DEC_mode,
+                                u32 address, u32 data)
+{
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_DECODE, DEC_mode);
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_WR_AD, address);
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_DBG_DATA, data);
+       meiPollForDbgDone (pDev);
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * ARC Debug Memory Access for writing.
+ * This function used for direct, address-based access to ARC memory.
+ *
+ * \param      pDev            the device pointer
+ * \param      destaddr        The address to read
+ * \param      databuffer      Pointer to data
+ * \param      databuffsize    The number of DWORDs to read
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+
+static DSL_DEV_MeiError_t
+IFX_MEI_DebugWrite (DSL_DEV_Device_t * pDev, u32 destaddr,
+                         u32 * databuff, u32 databuffsize)
+{
+       u32 i;
+       u32 temp = 0x0;
+       u32 address = 0x0;
+       u32 *buffer = 0x0;
+
+       //      Open the debug port before DMP memory write
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+
+       //      For the requested length, write the address and write the data
+       address = destaddr;
+       buffer = databuff;
+       for (i = 0; i < databuffsize; i++) {
+               temp = *buffer;
+               _IFX_MEI_DBGLongWordWrite (pDev, ME_DBG_DECODE_DMP1_MASK, address, temp);
+               address += 4;
+               buffer++;
+       }
+
+       //      Close the debug port after DMP memory write
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * ARC Debug Memory Access for reading.
+ * This function used for direct, address-based access to ARC memory.
+ *
+ * \param      pDev            the device pointer
+ * \param      srcaddr         The address to read
+ * \param      databuffer      Pointer to data
+ * \param      databuffsize    The number of DWORDs to read
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_DebugRead (DSL_DEV_Device_t * pDev, u32 srcaddr, u32 * databuff, u32 databuffsize)
+{
+       u32 i;
+       u32 temp = 0x0;
+       u32 address = 0x0;
+       u32 *buffer = 0x0;
+
+       //      Open the debug port before DMP memory read
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+
+       //      For the requested length, write the address and read the data
+       address = srcaddr;
+       buffer = databuff;
+       for (i = 0; i < databuffsize; i++) {
+               _IFX_MEI_DBGLongWordRead (pDev, ME_DBG_DECODE_DMP1_MASK, address, &temp);
+               *buffer = temp;
+               address += 4;
+               buffer++;
+       }
+
+       //      Close the debug port after DMP memory read
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * Send a message to ARC MailBox.
+ * This function sends a message to ARC Mailbox via ARC DMA interface.
+ *
+ * \param      pDev            the device pointer
+ * \param      msgsrcbuffer    Pointer to message.
+ * \param      msgsize         The number of words to write.
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_MailboxWrite (DSL_DEV_Device_t * pDev, u16 * msgsrcbuffer,
+                           u16 msgsize)
+{
+       int i;
+       u32 arc_mailbox_status = 0x0;
+       u32 temp = 0;
+       DSL_DEV_MeiError_t meiMailboxError = DSL_DEV_MEI_ERR_SUCCESS;
+
+       //      Write to mailbox
+       meiMailboxError =
+               IFX_MEI_DMAWrite (pDev, MEI_TO_ARC_MAILBOX, (u32 *) msgsrcbuffer, msgsize / 2);
+       meiMailboxError =
+               IFX_MEI_DMAWrite (pDev, MEI_TO_ARC_MAILBOXR, (u32 *) (&temp), 1);
+
+       //      Notify arc that mailbox write completed
+       DSL_DEV_PRIVATE(pDev)->cmv_waiting = 1;
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ME2ARC_INT, MEI_TO_ARC_MSGAV);
+
+       i = 0;
+       while (i < WHILE_DELAY) {       // wait for ARC to clear the bit
+               IFX_MEI_LongWordReadOffset (pDev, (u32) ME_ME2ARC_INT, &arc_mailbox_status);
+               if ((arc_mailbox_status & MEI_TO_ARC_MSGAV) != MEI_TO_ARC_MSGAV)
+                       break;
+               i++;
+               if (i == WHILE_DELAY) {
+                       IFX_MEI_EMSG (">>> Timeout waiting for ARC to clear MEI_TO_ARC_MSGAV!!!"
+                             " MEI_TO_ARC message size = %d DWORDs <<<\n", msgsize/2);
+                       meiMailboxError = DSL_DEV_MEI_ERR_FAILURE;
+               }
+       }
+
+       return meiMailboxError;
+}
+
+/**
+ * Read a message from ARC MailBox.
+ * This function reads a message from ARC Mailbox via ARC DMA interface.
+ *
+ * \param      pDev            the device pointer
+ * \param      msgsrcbuffer    Pointer to message.
+ * \param      msgsize         The number of words to read
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_MailboxRead (DSL_DEV_Device_t * pDev, u16 * msgdestbuffer,
+                          u16 msgsize)
+{
+       DSL_DEV_MeiError_t meiMailboxError = DSL_DEV_MEI_ERR_SUCCESS;
+       //      Read from mailbox
+       meiMailboxError =
+               IFX_MEI_DMARead (pDev, ARC_TO_MEI_MAILBOX, (u32 *) msgdestbuffer, msgsize / 2);
+
+       //      Notify arc that mailbox read completed
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_STAT, ARC_TO_MEI_MSGAV);
+
+       return meiMailboxError;
+}
+
+/**
+ * Download boot pages to ARC.
+ * This function downloads boot pages to ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_DownloadBootPages (DSL_DEV_Device_t * pDev)
+{
+       int boot_loop;
+       int page_size;
+       u32 dest_addr;
+
+       /*
+        **     DMA the boot code page(s)
+        */
+
+       for (boot_loop = 1;
+            boot_loop <
+            (DSL_DEV_PRIVATE(pDev)->img_hdr-> count); boot_loop++) {
+               if ((DSL_DEV_PRIVATE(pDev)-> img_hdr->page[boot_loop].p_size) & BOOT_FLAG) {
+                       page_size = IFX_MEI_GetPage (pDev, boot_loop,
+                                                      GET_PROG, MAXSWAPSIZE,
+                                                      mei_arc_swap_buff,
+                                                      &dest_addr);
+                       if (page_size > 0) {
+                               IFX_MEI_DMAWrite (pDev, dest_addr,
+                                                       mei_arc_swap_buff,
+                                                       page_size);
+                       }
+               }
+               if ((DSL_DEV_PRIVATE(pDev)-> img_hdr->page[boot_loop].d_size) & BOOT_FLAG) {
+                       page_size = IFX_MEI_GetPage (pDev, boot_loop,
+                                                      GET_DATA, MAXSWAPSIZE,
+                                                      mei_arc_swap_buff,
+                                                      &dest_addr);
+                       if (page_size > 0) {
+                               IFX_MEI_DMAWrite (pDev, dest_addr,
+                                                       mei_arc_swap_buff,
+                                                       page_size);
+                       }
+               }
+       }
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * Initial efuse rar.
+ **/
+static void
+IFX_MEI_FuseInit (DSL_DEV_Device_t * pDev)
+{
+       u32 data = 0;
+       IFX_MEI_DMAWrite (pDev, IRAM0_BASE, &data, 1);
+       IFX_MEI_DMAWrite (pDev, IRAM0_BASE + 4, &data, 1);
+       IFX_MEI_DMAWrite (pDev, IRAM1_BASE, &data, 1);
+       IFX_MEI_DMAWrite (pDev, IRAM1_BASE + 4, &data, 1);
+       IFX_MEI_DMAWrite (pDev, BRAM_BASE, &data, 1);
+       IFX_MEI_DMAWrite (pDev, BRAM_BASE + 4, &data, 1);
+       IFX_MEI_DMAWrite (pDev, ADSL_DILV_BASE, &data, 1);
+       IFX_MEI_DMAWrite (pDev, ADSL_DILV_BASE + 4, &data, 1);
+}
+
+/**
+ * efuse rar program
+ **/
+static void
+IFX_MEI_FuseProg (DSL_DEV_Device_t * pDev)
+{
+       u32 reg_data, fuse_value;
+       int i = 0;
+
+       IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &reg_data);
+       while ((reg_data & 0x10000000) == 0) {
+               IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST,  &reg_data);
+               i++;
+               /* 0x4000 translate to  about 16 ms@111M, so should be enough */
+               if (i == 0x4000)
+                       return;
+       }
+       // STEP a: Prepare memory for external accesses
+       // Write fuse_en bit24
+       IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &reg_data);
+       IFX_MEI_LongWordWrite ((u32) LTQ_RCU_RST, reg_data | (1 << 24));
+
+       IFX_MEI_FuseInit (pDev);
+       for (i = 0; i < 4; i++) {
+               IFX_MEI_LongWordRead ((u32) (LTQ_FUSE_BASE) + i * 4, &fuse_value);
+               switch (fuse_value & 0xF0000) {
+               case 0x80000:
+                       reg_data = ((fuse_value & RX_DILV_ADDR_BIT_MASK) |
+                                (RX_DILV_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, ADSL_DILV_BASE, &reg_data, 1);
+                       break;
+               case 0x90000:
+                       reg_data = ((fuse_value & RX_DILV_ADDR_BIT_MASK) |
+                                (RX_DILV_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, ADSL_DILV_BASE + 4, &reg_data, 1);
+                       break;
+               case 0xA0000:
+                       reg_data = ((fuse_value & IRAM0_ADDR_BIT_MASK) |
+                                (IRAM0_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, IRAM0_BASE, &reg_data, 1);
+                       break;
+               case 0xB0000:
+                       reg_data = ((fuse_value & IRAM0_ADDR_BIT_MASK) |
+                                (IRAM0_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, IRAM0_BASE + 4, &reg_data, 1);
+                       break;
+               case 0xC0000:
+                       reg_data = ((fuse_value & IRAM1_ADDR_BIT_MASK) |
+                                (IRAM1_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, IRAM1_BASE, &reg_data, 1);
+                       break;
+               case 0xD0000:
+                       reg_data = ((fuse_value & IRAM1_ADDR_BIT_MASK) |
+                                (IRAM1_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, IRAM1_BASE + 4, &reg_data, 1);
+                       break;
+               case 0xE0000:
+                       reg_data = ((fuse_value & BRAM_ADDR_BIT_MASK) |
+                                (BRAM_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, BRAM_BASE, &reg_data, 1);
+                       break;
+               case 0xF0000:
+                       reg_data = ((fuse_value & BRAM_ADDR_BIT_MASK) |
+                                (BRAM_ADDR_BIT_MASK + 0x1));
+                       IFX_MEI_DMAWrite (pDev, BRAM_BASE + 4, &reg_data, 1);
+                       break;
+               default:        // PPE efuse
+                       break;
+               }
+       }
+       IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &reg_data);
+       IFX_MEI_LongWordWrite ((u32) LTQ_RCU_RST, reg_data & ~(1 << 24));
+       IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &reg_data);
+}
+
+/**
+ * Enable DFE Clock
+ * This function enables DFE Clock
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_EnableCLK (DSL_DEV_Device_t * pDev)
+{
+       u32 arc_debug_data = 0;
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+       //enable ac_clk signal
+       _IFX_MEI_DBGLongWordRead (pDev, ME_DBG_DECODE_DMP1_MASK,
+                                       CRI_CCR0, &arc_debug_data);
+       arc_debug_data |= ACL_CLK_MODE_ENABLE;
+       _IFX_MEI_DBGLongWordWrite (pDev, ME_DBG_DECODE_DMP1_MASK,
+                                        CRI_CCR0, arc_debug_data);
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * Halt the ARC.
+ * This function halts the ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_HaltArc (DSL_DEV_Device_t * pDev)
+{
+       u32 arc_debug_data = 0x0;
+
+       //      Switch arc control from JTAG mode to MEI mode
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+       _IFX_MEI_DBGLongWordRead (pDev, MEI_DEBUG_DEC_AUX_MASK,
+                                       ARC_DEBUG, &arc_debug_data);
+       arc_debug_data |= ARC_DEBUG_HALT;
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK,
+                                        ARC_DEBUG, arc_debug_data);
+       //      Switch arc control from MEI mode to JTAG mode
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       MEI_WAIT (10);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * Run the ARC.
+ * This function runs the ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_RunArc (DSL_DEV_Device_t * pDev)
+{
+       u32 arc_debug_data = 0x0;
+
+       //      Switch arc control from JTAG mode to MEI mode- write '1' to bit0
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+       _IFX_MEI_DBGLongWordRead (pDev, MEI_DEBUG_DEC_AUX_MASK,
+                                       AUX_STATUS, &arc_debug_data);
+
+       //      Write debug data reg with content ANDd with 0xFDFFFFFF (halt bit cleared)
+       arc_debug_data &= ~ARC_AUX_HALT;
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK,
+                                        AUX_STATUS, arc_debug_data);
+
+       //      Switch arc control from MEI mode to JTAG mode- write '0' to bit0
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+       //      Enable mask for arc codeswap interrupts
+       IFX_MEI_IRQEnable (pDev);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+
+}
+
+/**
+ * Reset the ARC.
+ * This function resets the ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_ResetARC (DSL_DEV_Device_t * pDev)
+{
+       u32 arc_debug_data = 0;
+
+       IFX_MEI_HaltArc (pDev);
+
+       IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &arc_debug_data);
+       IFX_MEI_LongWordWrite ((u32) LTQ_RCU_RST,
+               arc_debug_data | LTQ_RCU_RST_REQ_DFE | LTQ_RCU_RST_REQ_AFE);
+
+       // reset ARC
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_RST_CTRL, MEI_SOFT_RESET);
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_RST_CTRL, 0);
+
+       IFX_MEI_IRQDisable (pDev);
+
+       IFX_MEI_EnableCLK (pDev);
+
+#if 0
+       // reset part of PPE
+       *(unsigned long *) (BSP_PPE32_SRST) = 0xC30;
+       *(unsigned long *) (BSP_PPE32_SRST) = 0xFFF;
+#endif
+
+       DSL_DEV_PRIVATE(pDev)->modem_ready = 0;
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+DSL_DEV_MeiError_t
+DSL_BSP_Showtime (DSL_DEV_Device_t * dev, DSL_uint32_t rate_fast, DSL_uint32_t rate_intl)
+{
+    struct port_cell_info port_cell = {0};
+
+       IFX_MEI_EMSG ("Datarate US intl = %d, fast = %d\n", (int)rate_intl,
+                           (int)rate_fast);
+
+    if ( rate_fast )
+        g_tx_link_rate[0] = rate_fast / (53 * 8);
+    if ( rate_intl )
+        g_tx_link_rate[1] = rate_intl / (53 * 8);
+
+    if ( g_tx_link_rate[0] == 0 && g_tx_link_rate[1] == 0 ) {
+        IFX_MEI_EMSG ("Got rate fail.\n");
+    }
+
+       if ( ifx_mei_atm_showtime_enter )
+       {
+           port_cell.port_num = 2;
+           port_cell.tx_link_rate[0] = g_tx_link_rate[0];
+           port_cell.tx_link_rate[1] = g_tx_link_rate[1];
+        ifx_mei_atm_showtime_enter(&port_cell, g_xdata_addr);
+       }
+       else
+       {
+               IFX_MEI_EMSG("no hookup from ATM driver to set cell rate\n");
+       }
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+};
+
+/**
+ * Reset/halt/run the DFE.
+ * This function provide operations to reset/halt/run the DFE.
+ *
+ * \param      pDev            the device pointer
+ * \param      mode            which operation want to do
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_CpuModeSet (DSL_DEV_Device_t *pDev,
+                         DSL_DEV_CpuMode_t mode)
+{
+       DSL_DEV_MeiError_t err_ret = DSL_DEV_MEI_ERR_FAILURE;
+       switch (mode) {
+       case DSL_CPU_HALT:
+               err_ret = IFX_MEI_HaltArc (pDev);
+               break;
+       case DSL_CPU_RUN:
+               err_ret = IFX_MEI_RunArc (pDev);
+               break;
+       case DSL_CPU_RESET:
+               err_ret = IFX_MEI_ResetARC (pDev);
+               break;
+       default:
+               break;
+       }
+       return err_ret;
+}
+
+/**
+ * Accress DFE memory.
+ * This function provide a way to access DFE memory;
+ *
+ * \param      pDev            the device pointer
+ * \param      type            read or write
+ * \param      destaddr        destination address
+ * \param      databuff        pointer to hold data
+ * \param      databuffsize    size want to read/write
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+DSL_DEV_MeiError_t
+DSL_BSP_MemoryDebugAccess (DSL_DEV_Device_t * pDev,
+                               DSL_BSP_MemoryAccessType_t type,
+                               DSL_uint32_t destaddr, DSL_uint32_t *databuff,
+                               DSL_uint32_t databuffsize)
+{
+       DSL_DEV_MeiError_t meierr = DSL_DEV_MEI_ERR_SUCCESS;
+       switch (type) {
+       case DSL_BSP_MEMORY_READ:
+               meierr = IFX_MEI_DebugRead (pDev, (u32)destaddr, (u32*)databuff, (u32)databuffsize);
+               break;
+       case DSL_BSP_MEMORY_WRITE:
+               meierr = IFX_MEI_DebugWrite (pDev, (u32)destaddr, (u32*)databuff, (u32)databuffsize);
+               break;
+       }
+       return DSL_DEV_MEI_ERR_SUCCESS;
+};
+
+/**
+ * Download boot code to ARC.
+ * This function downloads boot code to ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_DownloadBootCode (DSL_DEV_Device_t *pDev)
+{
+       IFX_MEI_IRQDisable (pDev);
+
+       IFX_MEI_EnableCLK (pDev);
+
+       IFX_MEI_FuseProg (pDev);        //program fuse rar
+
+       IFX_MEI_DownloadBootPages (pDev);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+};
+
+/**
+ * Enable Jtag debugger interface
+ * This function setups mips gpio to enable jtag debugger
+ *
+ * \param      pDev            the device pointer
+ * \param      enable          enable or disable
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_ArcJtagEnable (DSL_DEV_Device_t *dev, int enable)
+{
+       /*
+       int meierr=0;
+       u32 reg_data;
+       switch (enable) {
+       case 1:
+                //reserve gpio 9, 10, 11, 14, 19 for ARC JTAG
+               ifxmips_port_reserve_pin (0, 9);
+               ifxmips_port_reserve_pin (0, 10);
+               ifxmips_port_reserve_pin (0, 11);
+               ifxmips_port_reserve_pin (0, 14);
+               ifxmips_port_reserve_pin (1, 3);
+
+               ifxmips_port_set_dir_in(0, 11);
+               ifxmips_port_clear_altsel0(0, 11);
+               ifxmips_port_clear_altsel1(0, 11);
+               ifxmips_port_set_open_drain(0, 11);
+        //enable ARC JTAG
+        IFX_MEI_LongWordRead ((u32) LTQ_RCU_RST, &reg_data);
+        IFX_MEI_LongWordWrite ((u32) LTQ_RCU_RST, reg_data | LTQ_RCU_RST_REQ_ARC_JTAG);
+               break;
+       case 0:
+       default:
+               break;
+       }
+jtag_end:
+       if (meierr)
+               return DSL_DEV_MEI_ERR_FAILURE;
+*/
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+};
+
+/**
+ * Enable DFE to MIPS interrupt
+ * This function enable DFE to MIPS interrupt
+ *
+ * \param      pDev            the device pointer
+ * \param      enable          enable or disable
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_AdslMailboxIRQEnable (DSL_DEV_Device_t *pDev, int enable)
+{
+       DSL_DEV_MeiError_t meierr;
+       switch (enable) {
+       case 0:
+               meierr = DSL_DEV_MEI_ERR_SUCCESS;
+               IFX_MEI_IRQDisable (pDev);
+               break;
+       case 1:
+               IFX_MEI_IRQEnable (pDev);
+               meierr = DSL_DEV_MEI_ERR_SUCCESS;
+               break;
+       default:
+               meierr = DSL_DEV_MEI_ERR_FAILURE;
+               break;
+
+       }
+       return meierr;
+}
+
+/**
+ * Get the modem status
+ * This function return the modem status
+ *
+ * \param      pDev            the device pointer
+ * \return     1: modem ready 0: not ready
+ * \ingroup    Internal
+ */
+static int
+IFX_MEI_IsModemReady (DSL_DEV_Device_t * pDev)
+{
+       return DSL_DEV_PRIVATE(pDev)->modem_ready;
+}
+
+DSL_DEV_MeiError_t
+DSL_BSP_AdslLedInit (DSL_DEV_Device_t * dev,
+                         DSL_DEV_LedId_t led_number,
+                         DSL_DEV_LedType_t type,
+                         DSL_DEV_LedHandler_t handler)
+{
+#if 0
+        struct led_config_param param;
+        if (led_number == DSL_LED_LINK_ID && type == DSL_LED_LINK_TYPE && handler == /*DSL_LED_HD_CPU*/DSL_LED_HD_FW) {
+                param.operation_mask = CONFIG_OPERATION_UPDATE_SOURCE;
+                param.led = 0x01;
+                param.source = 0x01;
+//                bsp_led_config (&param);
+
+        } else if (led_number == DSL_LED_DATA_ID && type == DSL_LED_DATA_TYPE && (handler == DSL_LED_HD_FW)) {
+                param.operation_mask = CONFIG_OPERATION_UPDATE_SOURCE;
+                param.led = 0x02;
+                param.source = 0x02;
+//                bsp_led_config (&param);
+        }
+#endif
+        return DSL_DEV_MEI_ERR_SUCCESS;
+};
+#if 0
+DSL_DEV_MeiError_t
+DSL_BSP_AdslLedSet (DSL_DEV_Device_t * dev, DSL_DEV_LedId_t led_number, DSL_DEV_LedMode_t mode)
+{
+       printk(KERN_INFO "[%s %d]: mode = %#x, led_number = %d\n", __func__, __LINE__, mode, led_number);
+       switch (mode) {
+       case DSL_LED_OFF:
+               switch (led_number) {
+               case DSL_LED_LINK_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (1, 0);
+                       bsp_led_set_data (1, 0);
+#endif
+                       break;
+               case DSL_LED_DATA_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (0, 0);
+                       bsp_led_set_data (0, 0);
+#endif
+                       break;
+               }
+               break;
+       case DSL_LED_FLASH:
+               switch (led_number) {
+               case DSL_LED_LINK_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (1, 1);       // data
+#endif
+                       break;
+               case DSL_LED_DATA_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (0, 1);       // data
+#endif
+                       break;
+               }
+               break;
+       case DSL_LED_ON:
+               switch (led_number) {
+               case DSL_LED_LINK_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (1, 0);
+                       bsp_led_set_data (1, 1);
+#endif
+                       break;
+               case DSL_LED_DATA_ID:
+#ifdef CONFIG_BSP_LED
+                       bsp_led_set_blink (0, 0);
+                       bsp_led_set_data (0, 1);
+#endif
+                       break;
+               }
+               break;
+       }
+       return DSL_DEV_MEI_ERR_SUCCESS;
+};
+
+#endif
+
+/**
+* Compose a message.
+* This function compose a message from opcode, group, address, index, size, and data
+*
+* \param       opcode          The message opcode
+* \param       group           The message group number
+* \param       address         The message address.
+* \param       index           The message index.
+* \param       size            The number of words to read/write.
+* \param       data            The pointer to data.
+* \param       CMVMSG          The pointer to message buffer.
+* \ingroup     Internal
+*/
+void
+makeCMV (u8 opcode, u8 group, u16 address, u16 index, int size, u16 * data, u16 *CMVMSG)
+{
+        memset (CMVMSG, 0, MSG_LENGTH * 2);
+        CMVMSG[0] = (opcode << 4) + (size & 0xf);
+        CMVMSG[1] = (((index == 0) ? 0 : 1) << 7) + (group & 0x7f);
+        CMVMSG[2] = address;
+        CMVMSG[3] = index;
+        if (opcode == H2D_CMV_WRITE)
+                memcpy (CMVMSG + 4, data, size * 2);
+        return;
+}
+
+/**
+ * Send a message to ARC and read the response
+ * This function sends a message to arc, waits the response, and reads the responses.
+ *
+ * \param      pDev            the device pointer
+ * \param      request         Pointer to the request
+ * \param      reply           Wait reply or not.
+ * \param      response        Pointer to the response
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+DSL_DEV_MeiError_t
+DSL_BSP_SendCMV (DSL_DEV_Device_t * pDev, u16 * request, int reply, u16 * response)    // write cmv to arc, if reply needed, wait for reply
+{
+       DSL_DEV_MeiError_t meierror;
+#if defined(BSP_PORT_RTEMS)
+       int delay_counter = 0;
+#endif
+
+       if (MEI_MUTEX_LOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema))
+               return -ERESTARTSYS;
+
+       DSL_DEV_PRIVATE(pDev)->cmv_reply = reply;
+       memset (DSL_DEV_PRIVATE(pDev)->CMV_RxMsg, 0,
+               sizeof (DSL_DEV_PRIVATE(pDev)->
+                       CMV_RxMsg));
+       DSL_DEV_PRIVATE(pDev)->arcmsgav = 0;
+
+       meierror = IFX_MEI_MailboxWrite (pDev, request, MSG_LENGTH);
+
+       if (meierror != DSL_DEV_MEI_ERR_SUCCESS) {
+               DSL_DEV_PRIVATE(pDev)->cmv_waiting = 0;
+               DSL_DEV_PRIVATE(pDev)->arcmsgav = 0;
+               IFX_MEI_EMSG ("MailboxWrite Fail!\n");
+               IFX_MEI_EMSG ("Resetting ARC...\n");
+               IFX_MEI_ResetARC(pDev);
+               MEI_MUTEX_UNLOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema);
+               return meierror;
+       }
+       else {
+               DSL_DEV_PRIVATE(pDev)->cmv_count++;
+       }
+
+       if (DSL_DEV_PRIVATE(pDev)->cmv_reply ==
+           NO_REPLY) {
+               MEI_MUTEX_UNLOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema);
+               return DSL_DEV_MEI_ERR_SUCCESS;
+       }
+
+#if !defined(BSP_PORT_RTEMS)
+       if (DSL_DEV_PRIVATE(pDev)->arcmsgav == 0)
+               MEI_WAIT_EVENT_TIMEOUT (DSL_DEV_PRIVATE(pDev)->wait_queue_arcmsgav, CMV_TIMEOUT);
+#else
+       while (DSL_DEV_PRIVATE(pDev)->arcmsgav == 0 && delay_counter < CMV_TIMEOUT / 5) {
+               MEI_WAIT (5);
+               delay_counter++;
+       }
+#endif
+
+       DSL_DEV_PRIVATE(pDev)->cmv_waiting = 0;
+       if (DSL_DEV_PRIVATE(pDev)->arcmsgav == 0) {     //CMV_timeout
+               DSL_DEV_PRIVATE(pDev)->arcmsgav = 0;
+               IFX_MEI_EMSG ("\%s: DSL_DEV_MEI_ERR_MAILBOX_TIMEOUT\n",
+                                   __FUNCTION__);
+               MEI_MUTEX_UNLOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema);
+               return DSL_DEV_MEI_ERR_MAILBOX_TIMEOUT;
+       }
+       else {
+               DSL_DEV_PRIVATE(pDev)->arcmsgav = 0;
+               DSL_DEV_PRIVATE(pDev)->
+                       reply_count++;
+               memcpy (response, DSL_DEV_PRIVATE(pDev)->CMV_RxMsg, MSG_LENGTH * 2);
+               MEI_MUTEX_UNLOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema);
+               return DSL_DEV_MEI_ERR_SUCCESS;
+       }
+       MEI_MUTEX_UNLOCK (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema);
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/**
+ * Reset the ARC, download boot codes, and run the ARC.
+ * This function resets the ARC, downloads boot codes to ARC, and runs the ARC.
+ *
+ * \param      pDev            the device pointer
+ * \return     DSL_DEV_MEI_ERR_SUCCESS or DSL_DEV_MEI_ERR_FAILURE
+ * \ingroup    Internal
+ */
+static DSL_DEV_MeiError_t
+IFX_MEI_RunAdslModem (DSL_DEV_Device_t *pDev)
+{
+       int nSize = 0, idx = 0;
+       uint32_t im0_register, im2_register;
+//     DSL_DEV_WinHost_Message_t m;
+
+       if (mei_arc_swap_buff == NULL) {
+               mei_arc_swap_buff =
+                       (u32 *) kmalloc (MAXSWAPSIZE * 4, GFP_KERNEL);
+               if (mei_arc_swap_buff == NULL) {
+                       IFX_MEI_EMSG (">>> malloc fail for codeswap buff!!! <<<\n");
+                       return DSL_DEV_MEI_ERR_FAILURE;
+               }
+                IFX_MEI_DMSG("allocate %dKB swap buff memory at: 0x%p\n", ksize(mei_arc_swap_buff)/1024, mei_arc_swap_buff);
+       }
+
+       DSL_DEV_PRIVATE(pDev)->img_hdr =
+               (ARC_IMG_HDR *) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[0].address;
+       if ((DSL_DEV_PRIVATE(pDev)->img_hdr->
+            count) * sizeof (ARC_SWP_PAGE_HDR) > SDRAM_SEGMENT_SIZE) {
+               IFX_MEI_EMSG ("firmware header size is bigger than 64K segment size\n");
+               return DSL_DEV_MEI_ERR_FAILURE;
+       }
+       // check image size
+       for (idx = 0; idx < MAX_BAR_REGISTERS; idx++) {
+               nSize += DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].nCopy;
+       }
+       if (nSize !=
+           DSL_DEV_PRIVATE(pDev)->image_size) {
+               IFX_MEI_EMSG ("Firmware download is not completed. Please download firmware again!\n");
+               return DSL_DEV_MEI_ERR_FAILURE;
+       }
+       // TODO: check crc
+       ///
+
+       IFX_MEI_ResetARC (pDev);
+       IFX_MEI_HaltArc (pDev);
+       IFX_MEI_BarUpdate (pDev, DSL_DEV_PRIVATE(pDev)->nBar);
+
+       //IFX_MEI_DMSG("Starting to meiDownloadBootCode\n");
+
+       IFX_MEI_DownloadBootCode (pDev);
+
+       im0_register = (*LTQ_ICU_IM0_IER) & (1 << 20);
+       im2_register = (*LTQ_ICU_IM2_IER) & (1 << 20);
+       /* Turn off irq */
+       #ifdef CONFIG_SOC_AMAZON_SE
+#define        IFXMIPS_USB_OC_INT0 (INT_NUM_IM4_IRL0 + 23)
+       disable_irq (IFXMIPS_USB_OC_INT0);
+//     disable_irq (IFXMIPS_USB_OC_INT2);
+       #elif defined(CONFIG_SOC_AR9)
+#define        IFXMIPS_USB_OC_INT0 (INT_NUM_IM4_IRL1 + 28)
+       disable_irq (IFXMIPS_USB_OC_INT0);
+//     disable_irq (IFXMIPS_USB_OC_INT2);
+       #elif defined(CONFIG_SOC_XWAY)
+       disable_irq (LTQ_USB_OC_INT);
+       #else
+       #error unkonwn arch
+       #endif
+       disable_irq (pDev->nIrq[IFX_DYING_GASP]);
+
+       IFX_MEI_RunArc (pDev);
+
+       MEI_WAIT_EVENT_TIMEOUT (DSL_DEV_PRIVATE(pDev)->wait_queue_modemready, 1000);
+
+       #ifdef CONFIG_SOC_AMAZON_SE
+       MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT0);
+//     MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT2);
+       #elif defined(CONFIG_SOC_AR9)
+       MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT0);
+//     MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT2);
+       #elif defined(CONFIG_SOC_XWAY)
+       MEI_MASK_AND_ACK_IRQ (LTQ_USB_OC_INT);
+       #else
+       #error unkonwn arch
+       #endif
+       MEI_MASK_AND_ACK_IRQ (pDev->nIrq[IFX_DYING_GASP]);
+
+       /* Re-enable irq */
+       enable_irq(pDev->nIrq[IFX_DYING_GASP]);
+       *LTQ_ICU_IM0_IER |= im0_register;
+       *LTQ_ICU_IM2_IER |= im2_register;
+
+       if (DSL_DEV_PRIVATE(pDev)->modem_ready != 1) {
+               IFX_MEI_EMSG ("Modem failed to be ready!\n");
+               return DSL_DEV_MEI_ERR_FAILURE;
+       } else {
+               IFX_MEI_DMSG("Modem is ready.\n");
+               return DSL_DEV_MEI_ERR_SUCCESS;
+       }
+}
+
+/**
+ * Get the page's data pointer
+ * This function caculats the data address from the firmware header.
+ *
+ * \param      pDev            the device pointer
+ * \param      Page            The page number.
+ * \param      data            Data page or program page.
+ * \param      MaxSize         The maximum size to read.
+ * \param      Buffer          Pointer to data.
+ * \param      Dest            Pointer to the destination address.
+ * \return     The number of bytes to read.
+ * \ingroup    Internal
+ */
+static int
+IFX_MEI_GetPage (DSL_DEV_Device_t * pDev, u32 Page, u32 data,
+                      u32 MaxSize, u32 * Buffer, u32 * Dest)
+{
+       u32 size;
+       u32 i;
+       u32 *p;
+       u32 idx, offset, nBar = 0;
+
+       if (Page > DSL_DEV_PRIVATE(pDev)->img_hdr->count)
+               return -2;
+       /*
+        **     Get program or data size, depending on "data" flag
+        */
+       size = (data == GET_DATA) ? (DSL_DEV_PRIVATE(pDev)->img_hdr->page[Page].d_size) :
+                            (DSL_DEV_PRIVATE(pDev)->img_hdr->page[Page].p_size);
+       size &= BOOT_FLAG_MASK; //      Clear boot bit!
+       if (size > MaxSize)
+               return -1;
+
+       if (size == 0)
+               return 0;
+       /*
+        **     Get program or data offset, depending on "data" flag
+        */
+       i = data ? (DSL_DEV_PRIVATE(pDev)->img_hdr->page[Page].d_offset) :
+                       (DSL_DEV_PRIVATE(pDev)->img_hdr->page[Page].p_offset);
+
+       /*
+        **     Copy data/program to buffer
+        */
+
+       idx = i / SDRAM_SEGMENT_SIZE;
+       offset = i % SDRAM_SEGMENT_SIZE;
+       p = (u32 *) ((u8 *) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].address + offset);
+
+       for (i = 0; i < size; i++) {
+               if (offset + i * 4 - (nBar * SDRAM_SEGMENT_SIZE) >= SDRAM_SEGMENT_SIZE) {
+                       idx++;
+                       nBar++;
+                       p = (u32 *) ((u8 *) KSEG1ADDR ((u32)DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].address));
+               }
+               Buffer[i] = *p++;
+       }
+
+       /*
+        **     Pass back data/program destination address
+        */
+       *Dest = data ? (DSL_DEV_PRIVATE(pDev)-> img_hdr->page[Page].d_dest) :
+                               (DSL_DEV_PRIVATE(pDev)->img_hdr->page[Page].p_dest);
+
+       return size;
+}
+
+/**
+ * Free the memory for ARC firmware
+ *
+ * \param      pDev            the device pointer
+ * \param      type    Free all memory or free the unused memory after showtime
+ * \ingroup    Internal
+ */
+const char *free_str[4] = {"Invalid", "Free_Reload", "Free_Showtime", "Free_All"};
+static int
+IFX_MEI_DFEMemoryFree (DSL_DEV_Device_t * pDev, int type)
+{
+        int idx = 0;
+        smmu_mem_info_t *adsl_mem_info =
+                DSL_DEV_PRIVATE(pDev)->adsl_mem_info;
+
+        for (idx = 0; idx < MAX_BAR_REGISTERS; idx++) {
+                if (type == FREE_ALL ||adsl_mem_info[idx].type == type) {
+                        if (adsl_mem_info[idx].size > 0) {
+                                IFX_MEI_DMSG ("Freeing memory %p (%s)\n", adsl_mem_info[idx].org_address, free_str[adsl_mem_info[idx].type]);
+                                if ( idx == XDATA_REGISTER ) {
+                                    g_xdata_addr = NULL;
+                                    if ( ifx_mei_atm_showtime_exit )
+                                        ifx_mei_atm_showtime_exit();
+                                }
+                               kfree (adsl_mem_info[idx].org_address);
+                                adsl_mem_info[idx].org_address = 0;
+                                adsl_mem_info[idx].address = 0;
+                                adsl_mem_info[idx].size = 0;
+                                adsl_mem_info[idx].type = 0;
+                                adsl_mem_info[idx].nCopy = 0;
+                        }
+                }
+        }
+
+       if(mei_arc_swap_buff != NULL){
+                IFX_MEI_DMSG("free %dKB swap buff memory at: 0x%p\n", ksize(mei_arc_swap_buff)/1024, mei_arc_swap_buff);
+               kfree(mei_arc_swap_buff);
+               mei_arc_swap_buff=NULL;
+       }
+
+        return 0;
+}
+static int
+IFX_MEI_DFEMemoryAlloc (DSL_DEV_Device_t * pDev, long size)
+{
+       unsigned long mem_ptr;
+       char *org_mem_ptr = NULL;
+       int idx = 0;
+       long total_size = 0;
+       int err = 0;
+       smmu_mem_info_t *adsl_mem_info =
+               ((ifx_mei_device_private_t *) pDev->pPriv)->adsl_mem_info;
+//             DSL_DEV_PRIVATE(pDev)->adsl_mem_info;
+       int allocate_size = SDRAM_SEGMENT_SIZE;
+
+       IFX_MEI_DMSG("image_size = %ld\n", size);
+       // Alloc Swap Pages
+       for (idx = 0; size > 0 && idx < MAX_BAR_REGISTERS; idx++) {
+               // skip bar15 for XDATA usage.
+               if (idx == XDATA_REGISTER)
+                       continue;
+#if 0
+                if (size < SDRAM_SEGMENT_SIZE) {
+                        allocate_size = size;
+                        if (allocate_size < 1024)
+                                allocate_size = 1024;
+                }
+#endif
+                if (idx == (MAX_BAR_REGISTERS - 1))
+                        allocate_size = size;
+                else
+                        allocate_size = SDRAM_SEGMENT_SIZE;
+               org_mem_ptr = kmalloc (allocate_size + 1024, GFP_KERNEL);
+               if (org_mem_ptr == NULL) {
+                        IFX_MEI_EMSG ("%d: kmalloc %d bytes memory fail!\n", idx, allocate_size);
+                       err = -ENOMEM;
+                       goto allocate_error;
+               }
+                mem_ptr = (unsigned long) (org_mem_ptr + 1023) & ~(1024 -1);
+                adsl_mem_info[idx].address = (char *) mem_ptr;
+                adsl_mem_info[idx].org_address = org_mem_ptr;
+                adsl_mem_info[idx].size = allocate_size;
+                size -= allocate_size;
+                total_size += allocate_size;
+       }
+       if (size > 0) {
+               IFX_MEI_EMSG ("Image size is too large!\n");
+               err = -EFBIG;
+               goto allocate_error;
+       }
+       err = idx;
+       return err;
+
+      allocate_error:
+       IFX_MEI_DFEMemoryFree (pDev, FREE_ALL);
+       return err;
+}
+
+/**
+ * Program the BAR registers
+ *
+ * \param      pDev            the device pointer
+ * \param      nTotalBar       The number of bar to program.
+ * \ingroup    Internal
+ */
+static int
+IFX_MEI_BarUpdate (DSL_DEV_Device_t * pDev, int nTotalBar)
+{
+       int idx = 0;
+       smmu_mem_info_t *adsl_mem_info =
+               DSL_DEV_PRIVATE(pDev)->adsl_mem_info;
+
+       for (idx = 0; idx < nTotalBar; idx++) {
+               //skip XDATA register
+               if (idx == XDATA_REGISTER)
+                       continue;
+               IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_XMEM_BAR_BASE + idx * 4,
+                       (((uint32_t) adsl_mem_info[idx].address) & 0x0FFFFFFF));
+       }
+       for (idx = nTotalBar; idx < MAX_BAR_REGISTERS; idx++) {
+               if (idx == XDATA_REGISTER)
+                       continue;
+               IFX_MEI_LongWordWriteOffset (pDev,  (u32) ME_XMEM_BAR_BASE  + idx * 4,
+                        (((uint32_t)adsl_mem_info[nTotalBar - 1].address) & 0x0FFFFFFF));
+               /* These are for /proc/danube_mei/meminfo purpose */
+               adsl_mem_info[idx].address = adsl_mem_info[nTotalBar - 1].address;
+               adsl_mem_info[idx].org_address = adsl_mem_info[nTotalBar - 1].org_address;
+               adsl_mem_info[idx].size = 0; /* Prevent it from being freed */
+       }
+
+    g_xdata_addr = adsl_mem_info[XDATA_REGISTER].address;
+       IFX_MEI_LongWordWriteOffset (pDev,  (u32) ME_XMEM_BAR_BASE  + XDATA_REGISTER * 4,
+               (((uint32_t) adsl_mem_info [XDATA_REGISTER].address) & 0x0FFFFFFF));
+       // update MEI_XDATA_BASE_SH
+       IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_XDATA_BASE_SH,
+                ((unsigned long)adsl_mem_info[XDATA_REGISTER].address) & 0x0FFFFFFF);
+
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+/* This copies the firmware from secondary storage to 64k memory segment in SDRAM */
+DSL_DEV_MeiError_t
+DSL_BSP_FWDownload (DSL_DEV_Device_t * pDev, const char *buf,
+                        unsigned long size, long *loff, long *current_offset)
+{
+       ARC_IMG_HDR img_hdr_tmp;
+       smmu_mem_info_t *adsl_mem_info = DSL_DEV_PRIVATE(pDev)->adsl_mem_info;
+
+       size_t nRead = 0, nCopy = 0;
+       char *mem_ptr;
+       ssize_t retval = -ENOMEM;
+       int idx = 0;
+
+        IFX_MEI_DMSG("\n");
+
+       if (*loff == 0) {
+               if (size < sizeof (img_hdr_tmp)) {
+                       IFX_MEI_EMSG ("Firmware size is too small!\n");
+                       return retval;
+               }
+               copy_from_user ((char *) &img_hdr_tmp, buf, sizeof (img_hdr_tmp));
+               // header of image_size and crc are not included.
+               DSL_DEV_PRIVATE(pDev)->image_size = le32_to_cpu (img_hdr_tmp.size) + 8;
+
+               if (DSL_DEV_PRIVATE(pDev)->image_size > 1024 * 1024) {
+                       IFX_MEI_EMSG ("Firmware size is too large!\n");
+                       return retval;
+               }
+               // check if arc is halt
+               IFX_MEI_ResetARC (pDev);
+               IFX_MEI_HaltArc (pDev);
+
+               IFX_MEI_DFEMemoryFree (pDev, FREE_ALL); //free all
+
+               retval = IFX_MEI_DFEMemoryAlloc (pDev,  DSL_DEV_PRIVATE(pDev)->image_size);
+               if (retval < 0) {
+                       IFX_MEI_EMSG ("Error: No memory space left.\n");
+                       goto error;
+               }
+               for (idx = 0; idx < retval; idx++) {
+                       //skip XDATA register
+                       if (idx == XDATA_REGISTER)
+                               continue;
+                       if (idx * SDRAM_SEGMENT_SIZE < le32_to_cpu (img_hdr_tmp.page[0].p_offset))
+                               adsl_mem_info[idx].type = FREE_RELOAD;
+                       else
+                               adsl_mem_info[idx].type = FREE_SHOWTIME;
+               }
+               DSL_DEV_PRIVATE(pDev)->nBar = retval;
+
+               DSL_DEV_PRIVATE(pDev)->img_hdr =
+                       (ARC_IMG_HDR *) adsl_mem_info[0].address;
+
+               adsl_mem_info[XDATA_REGISTER].org_address = kmalloc (SDRAM_SEGMENT_SIZE + 1024, GFP_KERNEL);
+               adsl_mem_info[XDATA_REGISTER].address =
+                       (char *) ((unsigned long) (adsl_mem_info[XDATA_REGISTER].org_address + 1023) & 0xFFFFFC00);
+
+               adsl_mem_info[XDATA_REGISTER].size = SDRAM_SEGMENT_SIZE;
+
+               if (adsl_mem_info[XDATA_REGISTER].address == NULL) {
+                       IFX_MEI_EMSG ("kmalloc memory fail!\n");
+                       retval = -ENOMEM;
+                       goto error;
+               }
+               adsl_mem_info[XDATA_REGISTER].type = FREE_RELOAD;
+               IFX_MEI_DMSG("-> IFX_MEI_BarUpdate()\n");
+               IFX_MEI_BarUpdate (pDev, (DSL_DEV_PRIVATE(pDev)->nBar));
+       }
+       else if (DSL_DEV_PRIVATE(pDev)-> image_size == 0) {
+               IFX_MEI_EMSG ("Error: Firmware size=0! \n");
+               goto error;
+       }
+
+       nRead = 0;
+       while (nRead < size) {
+               long offset = ((long) (*loff) + nRead) % SDRAM_SEGMENT_SIZE;
+               idx = (((long) (*loff)) + nRead) / SDRAM_SEGMENT_SIZE;
+               mem_ptr = (char *) KSEG1ADDR ((unsigned long) (adsl_mem_info[idx].address) + offset);
+               if ((size - nRead + offset) > SDRAM_SEGMENT_SIZE)
+                       nCopy = SDRAM_SEGMENT_SIZE - offset;
+               else
+                       nCopy = size - nRead;
+               copy_from_user (mem_ptr, buf + nRead, nCopy);
+               for (offset = 0; offset < (nCopy / 4); offset++) {
+                       ((unsigned long *) mem_ptr)[offset] = le32_to_cpu (((unsigned long *) mem_ptr)[offset]);
+               }
+               nRead += nCopy;
+               adsl_mem_info[idx].nCopy += nCopy;
+       }
+
+       *loff += size;
+       *current_offset = size;
+       return DSL_DEV_MEI_ERR_SUCCESS;
+error:
+       IFX_MEI_DFEMemoryFree (pDev, FREE_ALL);
+       return DSL_DEV_MEI_ERR_FAILURE;
+}
+/*
+ * Register a callback event.
+ * Return:
+ * -1 if the event already has a callback function registered.
+ *  0 success
+ */
+int DSL_BSP_EventCBRegister(DSL_BSP_EventCallBack_t *p)
+{
+       if (!p) {
+                IFX_MEI_EMSG("Invalid parameter!\n");
+                return -EINVAL;
+       }
+        if (p->event > DSL_BSP_CB_LAST || p->event < DSL_BSP_CB_FIRST) {
+                IFX_MEI_EMSG("Invalid Event %d\n", p->event);
+                return -EINVAL;
+        }
+        if (dsl_bsp_event_callback[p->event].function) {
+                IFX_MEI_EMSG("Event %d already has a callback function registered!\n", p->event);
+                return -1;
+        } else {
+                dsl_bsp_event_callback[p->event].function = p->function;
+                dsl_bsp_event_callback[p->event].event    = p->event;
+                dsl_bsp_event_callback[p->event].pData    = p->pData;
+        }
+        return 0;
+}
+int DSL_BSP_EventCBUnregister(DSL_BSP_EventCallBack_t *p)
+{
+       if (!p) {
+                IFX_MEI_EMSG("Invalid parameter!\n");
+                return -EINVAL;
+       }
+        if (p->event > DSL_BSP_CB_LAST || p->event < DSL_BSP_CB_FIRST) {
+                IFX_MEI_EMSG("Invalid Event %d\n", p->event);
+                return -EINVAL;
+        }
+        if (dsl_bsp_event_callback[p->event].function) {
+                IFX_MEI_EMSG("Unregistering Event %d...\n", p->event);
+                dsl_bsp_event_callback[p->event].function = NULL;
+                dsl_bsp_event_callback[p->event].pData    = NULL;
+        } else {
+                IFX_MEI_EMSG("Event %d is not registered!\n", p->event);
+                return -1;
+        }
+        return 0;
+}
+
+/**
+ * MEI Dying Gasp interrupt handler
+ *
+ * \param int1
+ * \param void0
+ * \param regs Pointer to the structure of danube mips registers
+ * \ingroup    Internal
+ */
+/*static irqreturn_t IFX_MEI_Dying_Gasp_IrqHandle (int int1, void *void0)
+{
+       DSL_DEV_Device_t *pDev = (DSL_DEV_Device_t *) void0;
+        DSL_BSP_CB_Type_t event;
+
+       if (pDev == NULL)
+               IFX_MEI_EMSG("Error: Got Interrupt but pDev is NULL!!!!\n");
+
+#ifndef CONFIG_SMP
+       disable_irq (pDev->nIrq[IFX_DYING_GASP]);
+#else
+       disable_irq_nosync(pDev->nIrq[IFX_DYING_GASP]);
+#endif
+       event = DSL_BSP_CB_DYING_GASP;
+
+       if (dsl_bsp_event_callback[event].function)
+               (*dsl_bsp_event_callback[event].function)(pDev, event, dsl_bsp_event_callback[event].pData);
+
+#ifdef CONFIG_USE_EMULATOR
+    IFX_MEI_EMSG("Dying Gasp! Shutting Down... (Work around for Amazon-S Venus emulator)\n");
+#else
+       IFX_MEI_EMSG("Dying Gasp! Shutting Down...\n");
+//     kill_proc (1, SIGINT, 1);   
+#endif
+        return IRQ_HANDLED;
+}
+*/
+extern void ifx_usb_enable_afe_oc(void);
+
+/**
+ * MEI interrupt handler
+ *
+ * \param int1
+ * \param void0
+ * \param regs Pointer to the structure of danube mips registers
+ * \ingroup    Internal
+ */
+static irqreturn_t IFX_MEI_IrqHandle (int int1, void *void0)
+{
+       u32 scratch;
+       DSL_DEV_Device_t *pDev = (DSL_DEV_Device_t *) void0;
+#if defined(CONFIG_LTQ_MEI_FW_LOOPBACK) && defined(DFE_PING_TEST)
+       dfe_loopback_irq_handler (pDev);
+       return IRQ_HANDLED;
+#endif //CONFIG_AMAZON_S_MEI_FW_LOOPBACK
+        DSL_BSP_CB_Type_t event;
+
+       if (pDev == NULL)
+               IFX_MEI_EMSG("Error: Got Interrupt but pDev is NULL!!!!\n");
+
+       IFX_MEI_DebugRead (pDev, ARC_MEI_MAILBOXR, &scratch, 1);
+       if (scratch & OMB_CODESWAP_MESSAGE_MSG_TYPE_MASK) {
+               IFX_MEI_EMSG("Receive Code Swap Request interrupt!!!\n");
+               return IRQ_HANDLED;
+       }
+       else if (scratch & OMB_CLEAREOC_INTERRUPT_CODE)  {
+               // clear eoc message interrupt
+               IFX_MEI_DMSG("OMB_CLEAREOC_INTERRUPT_CODE\n");
+                event = DSL_BSP_CB_CEOC_IRQ;
+               IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_STAT, ARC_TO_MEI_MSGAV);
+                if (dsl_bsp_event_callback[event].function)
+                       (*dsl_bsp_event_callback[event].function)(pDev, event, dsl_bsp_event_callback[event].pData);
+        } else if (scratch & OMB_REBOOT_INTERRUPT_CODE) {
+                // Reboot
+                IFX_MEI_DMSG("OMB_REBOOT_INTERRUPT_CODE\n");
+                event = DSL_BSP_CB_FIRMWARE_REBOOT;
+
+               IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_ARC2ME_STAT, ARC_TO_MEI_MSGAV);
+
+                if (dsl_bsp_event_callback[event].function)
+                        (*dsl_bsp_event_callback[event].function)(pDev, event, dsl_bsp_event_callback[event].pData);
+        } else { // normal message
+                IFX_MEI_MailboxRead (pDev, DSL_DEV_PRIVATE(pDev)->CMV_RxMsg, MSG_LENGTH);
+                if (DSL_DEV_PRIVATE(pDev)-> cmv_waiting == 1) {
+                        DSL_DEV_PRIVATE(pDev)-> arcmsgav = 1;
+                        DSL_DEV_PRIVATE(pDev)-> cmv_waiting = 0;
+#if !defined(BSP_PORT_RTEMS)
+                        MEI_WAKEUP_EVENT (DSL_DEV_PRIVATE(pDev)->wait_queue_arcmsgav);
+#endif
+                }
+               else {
+                       DSL_DEV_PRIVATE(pDev)-> modem_ready_cnt++;
+                       memcpy ((char *) DSL_DEV_PRIVATE(pDev)->Recent_indicator,
+                               (char *) DSL_DEV_PRIVATE(pDev)->CMV_RxMsg, MSG_LENGTH * 2);
+                       if (((DSL_DEV_PRIVATE(pDev)->CMV_RxMsg[0] & 0xff0) >> 4) == D2H_AUTONOMOUS_MODEM_READY_MSG) {
+                               //check ARC ready message
+                               IFX_MEI_DMSG ("Got MODEM_READY_MSG\n");
+                               DSL_DEV_PRIVATE(pDev)->modem_ready = 1;
+                               MEI_WAKEUP_EVENT (DSL_DEV_PRIVATE(pDev)->wait_queue_modemready);
+                       }
+               }
+       }
+
+       return IRQ_HANDLED;
+}
+
+int
+DSL_BSP_ATMLedCBRegister (int (*ifx_adsl_ledcallback) (void))
+{
+    g_adsl_ledcallback = ifx_adsl_ledcallback;
+    return 0;
+}
+
+int
+DSL_BSP_ATMLedCBUnregister (int (*ifx_adsl_ledcallback) (void))
+{
+    g_adsl_ledcallback = adsl_dummy_ledcallback;
+    return 0;
+}
+
+#if 0
+int
+DSL_BSP_EventCBRegister (int (*ifx_adsl_callback)
+                               (DSL_BSP_CB_Event_t * param))
+{
+       int error = 0;
+
+       if (DSL_EventCB == NULL) {
+               DSL_EventCB = ifx_adsl_callback;
+       }
+       else {
+               error = -EIO;
+       }
+       return error;
+}
+
+int
+DSL_BSP_EventCBUnregister (int (*ifx_adsl_callback)
+                                 (DSL_BSP_CB_Event_t * param))
+{
+       int error = 0;
+
+       if (DSL_EventCB == ifx_adsl_callback) {
+               DSL_EventCB = NULL;
+       }
+       else {
+               error = -EIO;
+       }
+       return error;
+}
+
+static int
+DSL_BSP_GetEventCB (int (**ifx_adsl_callback)
+                          (DSL_BSP_CB_Event_t * param))
+{
+       *ifx_adsl_callback = DSL_EventCB;
+       return 0;
+}
+#endif
+
+#ifdef CONFIG_LTQ_MEI_FW_LOOPBACK
+#define mte_reg_base   (0x4800*4+0x20000)
+
+/* Iridia Registers Address Constants */
+#define MTE_Reg(r)     (int)(mte_reg_base + (r*4))
+
+#define IT_AMODE               MTE_Reg(0x0004)
+
+#define TIMER_DELAY    (1024)
+#define BC0_BYTES      (32)
+#define BC1_BYTES      (30)
+#define NUM_MB         (12)
+#define TIMEOUT_VALUE  2000
+
+static void
+BFMWait (u32 cycle)
+{
+       u32 i;
+       for (i = 0; i < cycle; i++);
+}
+
+static void
+WriteRegLong (u32 addr, u32 data)
+{
+       //*((volatile u32 *)(addr)) =  data;
+       IFX_MEI_WRITE_REGISTER_L (data, addr);
+}
+
+static u32
+ReadRegLong (u32 addr)
+{
+       // u32  rd_val;
+       //rd_val = *((volatile u32 *)(addr));
+       // return rd_val;
+       return IFX_MEI_READ_REGISTER_L (addr);
+}
+
+/* This routine writes the mailbox with the data in an input array */
+static void
+WriteMbox (u32 * mboxarray, u32 size)
+{
+       IFX_MEI_DebugWrite (&dsl_devices[0], IMBOX_BASE, mboxarray, size);
+       IFX_MEI_DMSG("write to %X\n", IMBOX_BASE);
+       IFX_MEI_LongWordWriteOffset (&dsl_devices[0], (u32) ME_ME2ARC_INT, MEI_TO_ARC_MSGAV);
+}
+
+/* This routine reads the output mailbox and places the results into an array */
+static void
+ReadMbox (u32 * mboxarray, u32 size)
+{
+       IFX_MEI_DebugRead (&dsl_devices[0], OMBOX_BASE, mboxarray, size);
+       IFX_MEI_DMSG("read from %X\n", OMBOX_BASE);
+}
+
+static void
+MEIWriteARCValue (u32 address, u32 value)
+{
+       u32 i, check = 0;
+
+       /* Write address register */
+       IFX_MEI_WRITE_REGISTER_L (address,  ME_DBG_WR_AD + LTQ_MEI_BASE_ADDR);
+
+       /* Write data register */
+       IFX_MEI_WRITE_REGISTER_L (value, ME_DBG_DATA + LTQ_MEI_BASE_ADDR);
+
+       /* wait until complete - timeout at 40 */
+       for (i = 0; i < 40; i++) {
+               check = IFX_MEI_READ_REGISTER_L (ME_ARC2ME_STAT + LTQ_MEI_BASE_ADDR);
+
+               if ((check & ARC_TO_MEI_DBG_DONE))
+                       break;
+       }
+       /* clear the flag */
+       IFX_MEI_WRITE_REGISTER_L (ARC_TO_MEI_DBG_DONE, ME_ARC2ME_STAT + LTQ_MEI_BASE_ADDR);
+}
+
+void
+arc_code_page_download (uint32_t arc_code_length, uint32_t * start_address)
+{
+       int count;
+
+       IFX_MEI_DMSG("try to download pages,size=%d\n", arc_code_length);
+       IFX_MEI_ControlModeSet (&dsl_devices[0], MEI_MASTER_MODE);
+       IFX_MEI_HaltArc (&dsl_devices[0]);
+       IFX_MEI_LongWordWriteOffset (&dsl_devices[0], (u32) ME_DX_AD, 0);
+       for (count = 0; count < arc_code_length; count++) {
+               IFX_MEI_LongWordWriteOffset (&dsl_devices[0], (u32) ME_DX_DATA,
+                                                  *(start_address + count));
+       }
+       IFX_MEI_ControlModeSet (&dsl_devices[0], JTAG_MASTER_MODE);
+}
+static int
+load_jump_table (unsigned long addr)
+{
+       int i;
+       uint32_t addr_le, addr_be;
+       uint32_t jump_table[32];
+
+       for (i = 0; i < 16; i++) {
+               addr_le = i * 8 + addr;
+               addr_be = ((addr_le >> 16) & 0xffff);
+               addr_be |= ((addr_le & 0xffff) << 16);
+               jump_table[i * 2 + 0] = 0x0f802020;
+               jump_table[i * 2 + 1] = addr_be;
+               //printk("jt %X %08X %08X\n",i,jump_table[i*2+0],jump_table[i*2+1]);
+       }
+       arc_code_page_download (32, &jump_table[0]);
+return 0;
+}
+
+int got_int = 0;
+
+void
+dfe_loopback_irq_handler (DSL_DEV_Device_t *pDev)
+{
+       uint32_t rd_mbox[10];
+
+       memset (&rd_mbox[0], 0, 10 * 4);
+       ReadMbox (&rd_mbox[0], 6);
+       if (rd_mbox[0] == 0x0) {
+               FX_MEI_DMSG("Get ARC_ACK\n");
+               got_int = 1;
+       }
+       else if (rd_mbox[0] == 0x5) {
+               IFX_MEI_DMSG("Get ARC_BUSY\n");
+               got_int = 2;
+       }
+       else if (rd_mbox[0] == 0x3) {
+               IFX_MEI_DMSG("Get ARC_EDONE\n");
+               if (rd_mbox[1] == 0x0) {
+                       got_int = 3;
+                       IFX_MEI_DMSG("Get E_MEMTEST\n");
+                       if (rd_mbox[2] != 0x1) {
+                               got_int = 4;
+                               IFX_MEI_DMSG("Get Result %X\n", rd_mbox[2]);
+                       }
+               }
+       }
+       IFX_MEI_LongWordWriteOffset (&dsl_devices[0], (u32) ME_ARC2ME_STAT,
+               ARC_TO_MEI_DBG_DONE);
+       MEI_MASK_AND_ACK_IRQ (pDev->nIrq[IFX_DFEIR]);
+       disable_irq (pDev->nIrq[IFX_DFEIR]);
+       //got_int = 1;
+       return;
+}
+
+static void
+wait_mem_test_result (void)
+{
+       uint32_t mbox[5];
+       mbox[0] = 0;
+
+       IFX_MEI_DMSG("Waiting Starting\n");
+       while (mbox[0] == 0) {
+               ReadMbox (&mbox[0], 5);
+       }
+       IFX_MEI_DMSG("Try to get mem test result.\n");
+       ReadMbox (&mbox[0], 5);
+       if (mbox[0] == 0xA) {
+               IFX_MEI_DMSG("Success.\n");
+       }
+       else if (mbox[0] == 0xA) {
+               IFX_MEI_EMSG("Fail,address %X,except data %X,receive data %X\n",
+                       mbox[1], mbox[2], mbox[3]);
+       }
+       else {
+               IFX_MEI_EMSG("Fail\n");
+       }
+}
+
+static int
+arc_ping_testing (DSL_DEV_Device_t *pDev)
+{
+#define MEI_PING 0x00000001
+       uint32_t wr_mbox[10], rd_mbox[10];
+       int i;
+
+       for (i = 0; i < 10; i++) {
+               wr_mbox[i] = 0;
+               rd_mbox[i] = 0;
+       }
+
+       FX_MEI_DMSG("send ping msg\n");
+       wr_mbox[0] = MEI_PING;
+       WriteMbox (&wr_mbox[0], 10);
+
+       while (got_int == 0) {
+               MEI_WAIT (100);
+       }
+
+       IFX_MEI_DMSG("send start event\n");
+       got_int = 0;
+
+       wr_mbox[0] = 0x4;
+       wr_mbox[1] = 0;
+       wr_mbox[2] = 0;
+       wr_mbox[3] = (uint32_t) 0xf5acc307e;
+       wr_mbox[4] = 5;
+       wr_mbox[5] = 2;
+       wr_mbox[6] = 0x1c000;
+       wr_mbox[7] = 64;
+       wr_mbox[8] = 0;
+       wr_mbox[9] = 0;
+       WriteMbox (&wr_mbox[0], 10);
+       DSL_ENABLE_IRQ (pDev->nIrq[IFX_DFEIR]);
+       //printk("IFX_MEI_MailboxWrite ret=%d\n",i);
+       IFX_MEI_LongWordWriteOffset (&dsl_devices[0],
+                                          (u32) ME_ME2ARC_INT,
+                                          MEI_TO_ARC_MSGAV);
+       IFX_MEI_DMSG("sleeping\n");
+       while (1) {
+               if (got_int > 0) {
+
+                       if (got_int > 3)
+                               IFX_MEI_DMSG("got_int >>>> 3\n");
+                       else
+                               IFX_MEI_DMSG("got int = %d\n", got_int);
+                       got_int = 0;
+                       //schedule();
+                       DSL_ENABLE_IRQ (pDev->nIrq[IFX_DFEIR]);
+               }
+               //mbox_read(&rd_mbox[0],6);
+               MEI_WAIT (100);
+       }
+       return 0;
+}
+
+static DSL_DEV_MeiError_t
+DFE_Loopback_Test (void)
+{
+       int i = 0;
+       u32 arc_debug_data = 0, temp;
+       DSL_DEV_Device_t *pDev = &dsl_devices[0];
+       uint32_t wr_mbox[10];
+
+       IFX_MEI_ResetARC (pDev);
+       // start the clock
+       arc_debug_data = ACL_CLK_MODE_ENABLE;
+       IFX_MEI_DebugWrite (pDev, CRI_CCR0, &arc_debug_data, 1);
+
+#if defined( DFE_PING_TEST )|| defined( DFE_ATM_LOOPBACK)
+       // WriteARCreg(AUX_XMEM_LTEST,0);
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+#define AUX_XMEM_LTEST 0x128
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK,  AUX_XMEM_LTEST, 0);
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       // WriteARCreg(AUX_XDMA_GAP,0);
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+#define AUX_XDMA_GAP 0x114
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK, AUX_XDMA_GAP, 0);
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+       temp = 0;
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK,
+               (u32) ME_XDATA_BASE_SH +  LTQ_MEI_BASE_ADDR, temp);
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       i = IFX_MEI_DFEMemoryAlloc (pDev, SDRAM_SEGMENT_SIZE * 16);
+       if (i >= 0) {
+               int idx;
+
+               for (idx = 0; idx < i; idx++) {
+                       DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].type = FREE_RELOAD;
+                       IFX_MEI_WRITE_REGISTER_L ((((uint32_t) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].address) & 0x0fffffff),
+                                                       LTQ_MEI_BASE_ADDR + ME_XMEM_BAR_BASE  + idx * 4);
+                       IFX_MEI_DMSG("bar%d(%X)=%X\n", idx,
+                               LTQ_MEI_BASE_ADDR + ME_XMEM_BAR_BASE  +
+                               idx * 4, (((uint32_t)
+                                          ((ifx_mei_device_private_t *)
+                                           pDev->pPriv)->adsl_mem_info[idx].
+                                          address) & 0x0fffffff));
+                       memset ((u8 *) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[idx].address, 0, SDRAM_SEGMENT_SIZE);
+               }
+
+               IFX_MEI_LongWordWriteOffset (pDev, (u32) ME_XDATA_BASE_SH,
+                                          ((unsigned long) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[XDATA_REGISTER].address) & 0x0FFFFFFF);
+       }
+       else {
+               IFX_MEI_EMSG ("cannot load image: no memory\n");
+               return DSL_DEV_MEI_ERR_FAILURE;
+       }
+       //WriteARCreg(AUX_IC_CTRL,2);
+       IFX_MEI_DMSG("Setting MEI_MASTER_MODE..\n");
+       IFX_MEI_ControlModeSet (pDev, MEI_MASTER_MODE);
+#define AUX_IC_CTRL 0x11
+       _IFX_MEI_DBGLongWordWrite (pDev, MEI_DEBUG_DEC_AUX_MASK,
+                                        AUX_IC_CTRL, 2);
+       IFX_MEI_DMSG("Setting JTAG_MASTER_MODE..\n");
+       IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+       IFX_MEI_DMSG("Halting ARC...\n");
+       IFX_MEI_HaltArc (&dsl_devices[0]);
+
+#ifdef DFE_PING_TEST
+
+       IFX_MEI_DMSG("ping test image size=%d\n", sizeof (arc_ahb_access_code));
+       memcpy ((u8 *) (DSL_DEV_PRIVATE(pDev)->
+                       adsl_mem_info[0].address + 0x1004),
+               &arc_ahb_access_code[0], sizeof (arc_ahb_access_code));
+       load_jump_table (0x80000 + 0x1004);
+
+#endif //DFE_PING_TEST
+
+       IFX_MEI_DMSG("ARC ping test code download complete\n");
+#endif //defined( DFE_PING_TEST )|| defined( DFE_ATM_LOOPBACK)
+#ifdef DFE_MEM_TEST
+       IFX_MEI_LongWordWriteOffset (&dsl_devices[0], (u32) ME_ARC2ME_MASK, MSGAV_EN);
+
+       arc_code_page_download (1537, &code_array[0]);
+       IFX_MEI_DMSG("ARC mem test code download complete\n");
+#endif //DFE_MEM_TEST
+#ifdef DFE_ATM_LOOPBACK
+       arc_debug_data = 0xf;
+       arc_code_page_download (sizeof(code_array) / sizeof(*code_array), &code_array[0]);
+       wr_mbox[0] = 0;     //TIMER_DELAY   - org: 1024
+       wr_mbox[1] = 0;         //TXFB_START0
+       wr_mbox[2] = 0x7f;      //TXFB_END0     - org: 49
+       wr_mbox[3] = 0x80;      //TXFB_START1   - org: 80
+       wr_mbox[4] = 0xff;      //TXFB_END1     - org: 109
+       wr_mbox[5] = 0x100;     //RXFB_START0   - org: 0
+       wr_mbox[6] = 0x17f;     //RXFB_END0     - org: 49
+       wr_mbox[7] = 0x180;     //RXFB_START1   - org: 256
+       wr_mbox[8] = 0x1ff;     //RXFB_END1     - org: 315
+       WriteMbox (&wr_mbox[0], 9);
+       // Start Iridia IT_AMODE (in dmp access) why is it required?
+       IFX_MEI_DebugWrite (&dsl_devices[0], 0x32010, &arc_debug_data, 1);
+#endif //DFE_ATM_LOOPBACK
+       IFX_MEI_IRQEnable (pDev);
+       IFX_MEI_DMSG("run ARC...\n");
+       IFX_MEI_RunArc (&dsl_devices[0]);
+
+#ifdef DFE_PING_TEST
+       arc_ping_testing (pDev);
+#endif //DFE_PING_TEST
+#ifdef DFE_MEM_TEST
+       wait_mem_test_result ();
+#endif //DFE_MEM_TEST
+
+       IFX_MEI_DFEMemoryFree (pDev, FREE_ALL);
+       return DSL_DEV_MEI_ERR_SUCCESS;
+}
+
+#endif //CONFIG_AMAZON_S_MEI_FW_LOOPBACK
+
+static int
+IFX_MEI_InitDevNode (int num)
+{
+       if (num == 0) {
+               if ((dev_major = register_chrdev (dev_major, IFX_MEI_DEVNAME, &bsp_mei_operations)) < 0) {
+                       IFX_MEI_EMSG ("register_chrdev(%d %s) failed!\n", dev_major, IFX_MEI_DEVNAME);
+                       return -ENODEV;
+               }
+       }
+       return 0;
+}
+
+static int
+IFX_MEI_CleanUpDevNode (int num)
+{
+       if (num == 0)
+               unregister_chrdev (dev_major, MEI_DIRNAME);
+       return 0;
+}
+
+static int
+IFX_MEI_InitDevice (int num)
+{
+       DSL_DEV_Device_t *pDev;
+        u32 temp;
+       pDev = &dsl_devices[num];
+       if (pDev == NULL)
+               return -ENOMEM;
+       pDev->pPriv = &sDanube_Mei_Private[num];
+       memset (pDev->pPriv, 0, sizeof (ifx_mei_device_private_t));
+
+       memset (&DSL_DEV_PRIVATE(pDev)->
+               adsl_mem_info[0], 0,
+               sizeof (smmu_mem_info_t) * MAX_BAR_REGISTERS);
+
+       if (num == 0) {
+               pDev->nIrq[IFX_DFEIR]      = LTQ_MEI_INT;
+               pDev->nIrq[IFX_DYING_GASP] = LTQ_MEI_DYING_GASP_INT;
+               pDev->base_address = KSEG1 + LTQ_MEI_BASE_ADDR;
+
+                /* Power up MEI */
+#ifdef CONFIG_LANTIQ_AMAZON_SE
+               *LTQ_PMU_PWDCR &= ~(1 << 9);  // enable dsl
+                *LTQ_PMU_PWDCR &= ~(1 << 15); // enable AHB base
+#else
+               temp = ltq_r32(LTQ_PMU_PWDCR);
+               temp &= 0xffff7dbe;
+               ltq_w32(temp, LTQ_PMU_PWDCR);
+#endif
+       }
+       pDev->nInUse = 0;
+       DSL_DEV_PRIVATE(pDev)->modem_ready = 0;
+       DSL_DEV_PRIVATE(pDev)->arcmsgav = 0;
+
+       MEI_INIT_WAKELIST ("arcq", DSL_DEV_PRIVATE(pDev)->wait_queue_arcmsgav); // for ARCMSGAV
+       MEI_INIT_WAKELIST ("arcr", DSL_DEV_PRIVATE(pDev)->wait_queue_modemready);       // for arc modem ready
+
+       MEI_MUTEX_INIT (DSL_DEV_PRIVATE(pDev)->mei_cmv_sema, 1);        // semaphore initialization, mutex
+#if 0
+       MEI_MASK_AND_ACK_IRQ (pDev->nIrq[IFX_DFEIR]);
+       MEI_MASK_AND_ACK_IRQ (pDev->nIrq[IFX_DYING_GASP]);
+#endif
+       if (request_irq (pDev->nIrq[IFX_DFEIR], IFX_MEI_IrqHandle, 0, "DFEIR", pDev) != 0) {
+               IFX_MEI_EMSG ("request_irq %d failed!\n", pDev->nIrq[IFX_DFEIR]);
+               return -1;
+       }
+       /*if (request_irq (pDev->nIrq[IFX_DYING_GASP], IFX_MEI_Dying_Gasp_IrqHandle, 0, "DYING_GASP", pDev) != 0) {
+               IFX_MEI_EMSG ("request_irq %d failed!\n", pDev->nIrq[IFX_DYING_GASP]);
+               return -1;
+       }*/
+//     IFX_MEI_DMSG("Device %d initialized. IER %#x\n", num, bsp_get_irq_ier(pDev->nIrq[IFX_DYING_GASP]));
+       return 0;
+}
+
+static int
+IFX_MEI_ExitDevice (int num)
+{
+       DSL_DEV_Device_t *pDev;
+       pDev = &dsl_devices[num];
+
+       if (pDev == NULL)
+               return -EIO;
+
+       disable_irq (pDev->nIrq[IFX_DFEIR]);
+       disable_irq (pDev->nIrq[IFX_DYING_GASP]);
+
+       free_irq(pDev->nIrq[IFX_DFEIR], pDev);
+       free_irq(pDev->nIrq[IFX_DYING_GASP], pDev);
+
+       return 0;
+}
+
+static DSL_DEV_Device_t *
+IFX_BSP_HandleGet (int maj, int num)
+{
+       if (num > BSP_MAX_DEVICES)
+               return NULL;
+       return &dsl_devices[num];
+}
+
+DSL_DEV_Device_t *
+DSL_BSP_DriverHandleGet (int maj, int num)
+{
+       DSL_DEV_Device_t *pDev;
+
+       if (num > BSP_MAX_DEVICES)
+               return NULL;
+
+       pDev = &dsl_devices[num];
+       if (!try_module_get(pDev->owner))
+               return NULL;
+
+       pDev->nInUse++;
+       return pDev;
+}
+
+int
+DSL_BSP_DriverHandleDelete (DSL_DEV_Device_t * nHandle)
+{
+       DSL_DEV_Device_t *pDev = (DSL_DEV_Device_t *) nHandle;
+       if (pDev->nInUse)
+               pDev->nInUse--;
+        module_put(pDev->owner);
+       return 0;
+}
+
+static int
+IFX_MEI_Open (DSL_DRV_inode_t * ino, DSL_DRV_file_t * fil)
+{
+       int maj = MAJOR (ino->i_rdev);
+       int num = MINOR (ino->i_rdev);
+
+       DSL_DEV_Device_t *pDev = NULL;
+       if ((pDev = DSL_BSP_DriverHandleGet (maj, num)) == NULL) {
+               IFX_MEI_EMSG("open(%d:%d) fail!\n", maj, num);
+               return -EIO;
+       }
+       fil->private_data = pDev;
+       return 0;
+}
+
+static int
+IFX_MEI_Release (DSL_DRV_inode_t * ino, DSL_DRV_file_t * fil)
+{
+       //int maj = MAJOR(ino->i_rdev);
+       int num = MINOR (ino->i_rdev);
+       DSL_DEV_Device_t *pDev;
+
+       pDev = &dsl_devices[num];
+       if (pDev == NULL)
+               return -EIO;
+       DSL_BSP_DriverHandleDelete (pDev);
+       return 0;
+}
+
+/**
+ * Callback function for linux userspace program writing
+ */
+static ssize_t
+IFX_MEI_Write (DSL_DRV_file_t * filp, const char *buf, size_t size, loff_t * loff)
+{
+       DSL_DEV_MeiError_t mei_error = DSL_DEV_MEI_ERR_FAILURE;
+       long offset = 0;
+       DSL_DEV_Device_t *pDev = (DSL_DEV_Device_t *) filp->private_data;
+
+       if (pDev == NULL)
+               return -EIO;
+
+       mei_error =
+               DSL_BSP_FWDownload (pDev, buf, size, (long *) loff,  &offset);
+
+       if (mei_error == DSL_DEV_MEI_ERR_FAILURE)
+               return -EIO;
+       return (ssize_t) offset;
+}
+
+/**
+ * Callback function for linux userspace program ioctling
+ */
+static int
+IFX_MEI_IoctlCopyFrom (int from_kernel, char *dest, char *from, int size)
+{
+       int ret = 0;
+
+       if (!from_kernel)
+               ret = copy_from_user ((char *) dest, (char *) from, size);
+       else
+               ret = (int)memcpy ((char *) dest, (char *) from, size);
+       return ret;
+}
+
+static int
+IFX_MEI_IoctlCopyTo (int from_kernel, char *dest, char *from, int size)
+{
+       int ret = 0;
+
+       if (!from_kernel)
+               ret = copy_to_user ((char *) dest, (char *) from, size);
+       else
+               ret = (int)memcpy ((char *) dest, (char *) from, size);
+       return ret;
+}
+
+int
+IFX_MEI_Ioctls (DSL_DEV_Device_t * pDev, int from_kernel, unsigned int command, unsigned long lon)
+{
+       int i = 0;
+       int meierr = DSL_DEV_MEI_ERR_SUCCESS;
+       u32 base_address = LTQ_MEI_BASE_ADDR;
+       DSL_DEV_WinHost_Message_t winhost_msg, m;
+//     DSL_DEV_MeiDebug_t debugrdwr;
+       DSL_DEV_MeiReg_t regrdwr;
+
+       switch (command) {
+
+       case DSL_FIO_BSP_CMV_WINHOST:
+               IFX_MEI_IoctlCopyFrom (from_kernel, (char *) winhost_msg.msg.TxMessage,
+                                            (char *) lon, MSG_LENGTH * 2);
+
+               if ((meierr = DSL_BSP_SendCMV (pDev, winhost_msg.msg.TxMessage, YES_REPLY,
+                                          winhost_msg.msg.RxMessage)) != DSL_DEV_MEI_ERR_SUCCESS) {
+                       IFX_MEI_EMSG ("WINHOST CMV fail :TxMessage:%X %X %X %X, RxMessage:%X %X %X %X %X\n",
+                                winhost_msg.msg.TxMessage[0], winhost_msg.msg.TxMessage[1], winhost_msg.msg.TxMessage[2], winhost_msg.msg.TxMessage[3],
+                                winhost_msg.msg.RxMessage[0], winhost_msg.msg.RxMessage[1], winhost_msg.msg.RxMessage[2], winhost_msg.msg.RxMessage[3],
+                                winhost_msg.msg.RxMessage[4]);
+                       meierr = DSL_DEV_MEI_ERR_FAILURE;
+               }
+               else {
+                       IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon,
+                                                  (char *) winhost_msg.msg.RxMessage,
+                                                  MSG_LENGTH * 2);
+               }
+               break;
+
+       case DSL_FIO_BSP_CMV_READ:
+               IFX_MEI_IoctlCopyFrom (from_kernel, (char *) (&regrdwr),
+                                            (char *) lon, sizeof (DSL_DEV_MeiReg_t));
+
+               IFX_MEI_LongWordRead ((u32) regrdwr.iAddress,
+                                           (u32 *) & (regrdwr.iData));
+
+               IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon,
+                                          (char *) (&regrdwr),
+                                          sizeof (DSL_DEV_MeiReg_t));
+
+               break;
+
+       case DSL_FIO_BSP_CMV_WRITE:
+               IFX_MEI_IoctlCopyFrom (from_kernel, (char *) (&regrdwr),
+                                            (char *) lon, sizeof (DSL_DEV_MeiReg_t));
+
+               IFX_MEI_LongWordWrite ((u32) regrdwr.iAddress,
+                                            regrdwr.iData);
+               break;
+
+       case DSL_FIO_BSP_GET_BASE_ADDRESS:
+               IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon,
+                                          (char *) (&base_address),
+                                          sizeof (base_address));
+               break;
+
+       case DSL_FIO_BSP_IS_MODEM_READY:
+               i = IFX_MEI_IsModemReady (pDev);
+               IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon,
+                                          (char *) (&i), sizeof (int));
+               meierr = DSL_DEV_MEI_ERR_SUCCESS;
+               break;
+       case DSL_FIO_BSP_RESET:
+       case DSL_FIO_BSP_REBOOT:
+               meierr = IFX_MEI_CpuModeSet (pDev, DSL_CPU_RESET);
+               meierr = IFX_MEI_CpuModeSet (pDev, DSL_CPU_HALT);
+               break;
+
+       case DSL_FIO_BSP_HALT:
+               meierr = IFX_MEI_CpuModeSet (pDev, DSL_CPU_HALT);
+               break;
+
+       case DSL_FIO_BSP_RUN:
+               meierr = IFX_MEI_CpuModeSet (pDev, DSL_CPU_RUN);
+               break;
+       case DSL_FIO_BSP_BOOTDOWNLOAD:
+               meierr = IFX_MEI_DownloadBootCode (pDev);
+               break;
+       case DSL_FIO_BSP_JTAG_ENABLE:
+               meierr = IFX_MEI_ArcJtagEnable (pDev, 1);
+               break;
+
+       case DSL_FIO_BSP_REMOTE:
+               IFX_MEI_IoctlCopyFrom (from_kernel, (char *) (&i),
+                                            (char *) lon, sizeof (int));
+
+               meierr = IFX_MEI_AdslMailboxIRQEnable (pDev, i);
+               break;
+
+       case DSL_FIO_BSP_DSL_START:
+               IFX_MEI_DMSG("DSL_FIO_BSP_DSL_START\n");
+               if ((meierr = IFX_MEI_RunAdslModem (pDev)) != DSL_DEV_MEI_ERR_SUCCESS) {
+                       IFX_MEI_EMSG ("IFX_MEI_RunAdslModem() error...");
+                       meierr = DSL_DEV_MEI_ERR_FAILURE;
+               }
+               break;
+
+/*     case DSL_FIO_BSP_DEBUG_READ:
+       case DSL_FIO_BSP_DEBUG_WRITE:
+               IFX_MEI_IoctlCopyFrom (from_kernel,
+                                            (char *) (&debugrdwr),
+                                            (char *) lon,
+                                            sizeof (debugrdwr));
+
+               if (command == DSL_FIO_BSP_DEBUG_READ)
+                       meierr = DSL_BSP_MemoryDebugAccess (pDev,
+                                                                DSL_BSP_MEMORY_READ,
+                                                                debugrdwr.
+                                                                iAddress,
+                                                                debugrdwr.
+                                                                buffer,
+                                                                debugrdwr.
+                                                                iCount);
+               else
+                       meierr = DSL_BSP_MemoryDebugAccess (pDev,
+                                                                DSL_BSP_MEMORY_WRITE,
+                                                                debugrdwr.
+                                                                iAddress,
+                                                                debugrdwr.
+                                                                buffer,
+                                                                debugrdwr.
+                                                                iCount);
+
+               IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon, (char *) (&debugrdwr), sizeof (debugrdwr));
+               break;*/
+       case DSL_FIO_BSP_GET_VERSION:
+               IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon, (char *) (&bsp_mei_version), sizeof (DSL_DEV_Version_t));
+               break;
+
+#define LTQ_MPS_CHIPID_VERSION_GET(value)  (((value) >> 28) & ((1 << 4) - 1))
+       case DSL_FIO_BSP_GET_CHIP_INFO:
+                bsp_chip_info.major = 1;
+                bsp_chip_info.minor = LTQ_MPS_CHIPID_VERSION_GET(*LTQ_MPS_CHIPID);
+                IFX_MEI_IoctlCopyTo (from_kernel, (char *) lon, (char *) (&bsp_chip_info), sizeof (DSL_DEV_HwVersion_t));
+                meierr = DSL_DEV_MEI_ERR_SUCCESS;
+               break;
+
+        case DSL_FIO_BSP_FREE_RESOURCE:
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_STAT, 4, 0, 1, NULL, m.msg.TxMessage);
+                if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS) {
+                        meierr = DSL_DEV_MEI_ERR_FAILURE;
+                        return -EIO;
+                }
+                IFX_MEI_DMSG("RxMessage[4] = %#x\n", m.msg.RxMessage[4]);
+                if (!(m.msg.RxMessage[4] & DSL_DEV_STAT_CODESWAP_COMPLETE)) {
+                        meierr = DSL_DEV_MEI_ERR_FAILURE;
+                        return -EAGAIN;
+                }
+                IFX_MEI_DMSG("Freeing all memories marked FREE_SHOWTIME\n");
+                IFX_MEI_DFEMemoryFree (pDev, FREE_SHOWTIME);
+                meierr = DSL_DEV_MEI_ERR_SUCCESS;
+               break;
+#ifdef CONFIG_IFXMIPS_AMAZON_SE
+       case DSL_FIO_ARC_MUX_TEST:
+               AMAZON_SE_MEI_ARC_MUX_Test();
+               break;
+#endif
+       default:
+//             IFX_MEI_EMSG("Invalid IOCTL command: %d\n");
+               break;
+       }
+       return meierr;
+}
+
+#ifdef CONFIG_IFXMIPS_AMAZON_SE
+void AMAZON_SE_MEI_ARC_MUX_Test(void)
+{
+       u32 *p, i;
+       *LTQ_RCU_RST |= LTQ_RCU_RST_REQ_MUX_ARC;
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + IRAM0_BASE);
+       IFX_MEI_EMSG("Writing to IRAM0(%p)...\n", p);
+       for (i = 0; i < IRAM0_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + IRAM1_BASE);
+       IFX_MEI_EMSG("Writing to IRAM1(%p)...\n", p);
+       for (i = 0; i < IRAM1_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + BRAM_BASE);
+       IFX_MEI_EMSG("Writing to BRAM(%p)...\n", p);
+       for (i = 0; i < BRAM_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + XRAM_BASE);
+       IFX_MEI_EMSG("Writing to XRAM(%p)...\n", p);
+       for (i = 0; i < XRAM_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + YRAM_BASE);
+       IFX_MEI_EMSG("Writing to YRAM(%p)...\n", p);
+       for (i = 0; i < YRAM_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+
+       p = (u32*)(DFE_LDST_BASE_ADDR + EXT_MEM_BASE);
+       IFX_MEI_EMSG("Writing to EXT_MEM(%p)...\n", p);
+       for (i = 0; i < EXT_MEM_SIZE/sizeof(u32); i++, p++) {
+               *p = 0xdeadbeef;
+               if (*p != 0xdeadbeef)
+                       IFX_MEI_EMSG("%p: %#x\n", p, *p);
+       }
+       *LTQ_RCU_RST &= ~LTQ_RCU_RST_REQ_MUX_ARC;
+}
+#endif
+int
+DSL_BSP_KernelIoctls (DSL_DEV_Device_t * pDev, unsigned int command,
+                          unsigned long lon)
+{
+       int error = 0;
+
+       error = IFX_MEI_Ioctls (pDev, 1, command, lon);
+       return error;
+}
+
+static long
+IFX_MEI_UserIoctls (DSL_DRV_file_t * fil,
+                         unsigned int command, unsigned long lon)
+{
+       int error = 0;
+       DSL_DEV_Device_t *pDev;
+
+       pDev = IFX_BSP_HandleGet (0, 0);
+       if (pDev == NULL)
+               return -EIO;
+
+       error = IFX_MEI_Ioctls (pDev, 0, command, lon);
+       return error;
+}
+
+static int adsl_dummy_ledcallback(void)
+{
+    return 0;
+}
+
+int ifx_mei_atm_led_blink(void)
+{
+    return g_adsl_ledcallback();
+}
+EXPORT_SYMBOL(ifx_mei_atm_led_blink);
+
+int ifx_mei_atm_showtime_check(int *is_showtime, struct port_cell_info *port_cell, void **xdata_addr)
+{
+    int i;
+
+    if ( is_showtime ) {
+        *is_showtime = g_tx_link_rate[0] == 0 && g_tx_link_rate[1] == 0 ? 0 : 1;
+    }
+
+    if ( port_cell ) {
+        for ( i = 0; i < port_cell->port_num && i < 2; i++ )
+            port_cell->tx_link_rate[i] = g_tx_link_rate[i];
+    }
+
+    if ( xdata_addr ) {
+        if ( g_tx_link_rate[0] == 0 && g_tx_link_rate[1] == 0 )
+            *xdata_addr = NULL;
+        else
+            *xdata_addr = g_xdata_addr;
+    }
+
+    return 0;
+}
+EXPORT_SYMBOL(ifx_mei_atm_showtime_check);
+
+/*
+ * Writing function for linux proc filesystem
+ */
+static int ltq_mei_probe(struct platform_device *pdev)
+{
+       int i = 0;
+       static struct class *dsl_class;
+
+       pr_info("IFX MEI Version %ld.%02ld.%02ld\n", bsp_mei_version.major, bsp_mei_version.minor, bsp_mei_version.revision);
+
+       for (i = 0; i < BSP_MAX_DEVICES; i++) {
+               if (IFX_MEI_InitDevice (i) != 0) {
+                       IFX_MEI_EMSG("Init device fail!\n");
+                       return -EIO;
+               }
+               IFX_MEI_InitDevNode (i);
+       }
+               for (i = 0; i <= DSL_BSP_CB_LAST ; i++)
+               dsl_bsp_event_callback[i].function = NULL;
+
+#ifdef CONFIG_LTQ_MEI_FW_LOOPBACK
+       IFX_MEI_DMSG("Start loopback test...\n");
+       DFE_Loopback_Test ();
+#endif
+       dsl_class = class_create(THIS_MODULE, "ifx_mei");
+       device_create(dsl_class, NULL, MKDEV(MEI_MAJOR, 0), NULL, "ifx_mei");
+       return 0;
+}
+
+static int ltq_mei_remove(struct platform_device *pdev)
+{
+       int i = 0;
+       int num;
+
+       for (num = 0; num < BSP_MAX_DEVICES; num++) {
+               IFX_MEI_CleanUpDevNode (num);
+       }
+
+       for (i = 0; i < BSP_MAX_DEVICES; i++) {
+               for (i = 0; i < BSP_MAX_DEVICES; i++) {
+                       IFX_MEI_ExitDevice (i);
+               }
+       }
+       return 0;
+}
+
+static const struct of_device_id ltq_mei_match[] = {
+       { .compatible = "lantiq,mei-xway"},
+       {},
+};
+
+static struct platform_driver ltq_mei_driver = {
+       .probe = ltq_mei_probe,
+       .remove = ltq_mei_remove,
+       .driver = {
+               .name = "lantiq,mei-xway",
+               .owner = THIS_MODULE,
+               .of_match_table = ltq_mei_match,
+       },
+};
+
+module_platform_driver(ltq_mei_driver);
+
+/* export function for DSL Driver */
+
+/* The functions of MEI_DriverHandleGet and MEI_DriverHandleDelete are
+something like open/close in kernel space , where the open could be used
+to register a callback for autonomous messages and returns a mei driver context pointer (comparable to the file descriptor in user space)
+   The context will be required for the multi line chips future! */
+
+EXPORT_SYMBOL (DSL_BSP_DriverHandleGet);
+EXPORT_SYMBOL (DSL_BSP_DriverHandleDelete);
+
+EXPORT_SYMBOL (DSL_BSP_ATMLedCBRegister);
+EXPORT_SYMBOL (DSL_BSP_ATMLedCBUnregister);
+EXPORT_SYMBOL (DSL_BSP_KernelIoctls);
+EXPORT_SYMBOL (DSL_BSP_AdslLedInit);
+//EXPORT_SYMBOL (DSL_BSP_AdslLedSet);
+EXPORT_SYMBOL (DSL_BSP_FWDownload);
+EXPORT_SYMBOL (DSL_BSP_Showtime);
+
+EXPORT_SYMBOL (DSL_BSP_MemoryDebugAccess);
+EXPORT_SYMBOL (DSL_BSP_SendCMV);
+
+// provide a register/unregister function for DSL driver to register a event callback function
+EXPORT_SYMBOL (DSL_BSP_EventCBRegister);
+EXPORT_SYMBOL (DSL_BSP_EventCBUnregister);
+
+MODULE_LICENSE("Dual BSD/GPL");