adds dsl support, thank you infineon/lantiq

SVN-Revision: 18259

1 files changed, 2998 insertions, 0 deletions

diff --git a/package/ifxmips-dsl-api/src/ifxmips_mei.c b/package/ifxmips-dsl-api/src/ifxmips_mei.c
new file mode 100644
index 0000000..5651b9f
--- /dev/null
+++ b/package/ifxmips-dsl-api/src/ifxmips_mei.c
@@ -0,0 +1,2998 @@
+/******************************************************************************
+
+                               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 <linux/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 <asm/uaccess.h>
+#include <asm/hardirq.h>
+#include <asm/ifx/ifx_regs.h>
+#include <asm/ifx/irq.h>
+#include <asm/ifx/ifx_gpio.h>
+//#include <asm/ifx/ifx_led.h>
+#include <asm/ifx/ifx_pmu.h>
+#include <asm/ifx/ifx_atm.h>
+#define IFX_MEI_BSP
+#include "ifxmips_mei_interface.h"
+
+#define IFXMIPS_RCU_RST                   IFX_RCU_RST_REQ
+#define IFXMIPS_RCU_RST_REQ_ARC_JTAG      IFX_RCU_RST_REQ_ARC_JTAG
+#define IFXMIPS_RCU_RST_REQ_DFE		  IFX_RCU_RST_REQ_DFE
+#define IFXMIPS_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 IFXMIPS_MEI_INT                   IFX_MEI_INT
+#define IFXMIPS_MEI_DYING_GASP_INT        IFX_MEI_DYING_GASP_INT
+#define IFXMIPS_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 ifxmips_r32(reg)                        __raw_readl(reg)
+#define ifxmips_w32(val, reg)                   __raw_writel(val, reg)
+#define ifxmips_w32_mask(clear, set, reg)       ifxmips_w32((ifxmips_r32(reg) & ~clear) | set, reg)
+
+#define IFX_MEI_EMSG(fmt, args...) printk(KERN_ERR  "[%s %d]: " fmt,__FUNCTION__, __LINE__, ## args)
+#define IFX_MEI_DMSG(fmt, args...) printk(KERN_INFO "[%s %d]: " fmt,__FUNCTION__, __LINE__, ## args)
+
+#ifdef CONFIG_IFXMIPS_MEI_FW_LOOPBACK
+//#define DFE_MEM_TEST
+//#define DFE_PING_TEST
+#define DFE_ATM_LOOPBACK
+
+#ifdef DFE_PING_TEST
+#include "dsp_xmem_arb_rand_em.h"
+#endif
+
+#ifdef DFE_MEM_TEST
+#include "aai_mem_test.h"
+#endif
+
+#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
+
+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 int IFX_MEI_UserIoctls (DSL_DRV_inode_t *, 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);
+
+#ifdef CONFIG_PROC_FS
+static int IFX_MEI_ProcRead (struct file *, char *, size_t, loff_t *);
+static ssize_t IFX_MEI_ProcWrite (struct file *, const char *, size_t, loff_t *);
+
+#define PROC_ITEMS 11
+#define MEI_DIRNAME "ifxmips_mei"
+
+static struct proc_dir_entry *meidir;
+static struct file_operations IFX_MEI_ProcOperations = {
+      read:IFX_MEI_ProcRead,
+      write:IFX_MEI_ProcWrite,
+};
+static reg_entry_t regs[BSP_MAX_DEVICES][PROC_ITEMS];   //total items to be monitored by /proc/mei
+#define NUM_OF_REG_ENTRY        (sizeof(regs[0])/sizeof(reg_entry_t))
+#endif //CONFIG_PROC_FS
+
+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 ifxmips_mask_and_ack_irq(unsigned int irq_nr);
+#define MEI_MASK_AND_ACK_IRQ ifxmips_mask_and_ack_irq
+
+static int dev_major = 105;
+
+static struct file_operations bsp_mei_operations = {
+      owner:THIS_MODULE,
+      open:IFX_MEI_Open,
+      release:IFX_MEI_Release,
+      write:IFX_MEI_Write,
+      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) IFXMIPS_RCU_RST, &reg_data);
+	while ((reg_data & 0x10000000) == 0) {
+		IFX_MEI_LongWordRead ((u32) IFXMIPS_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) IFXMIPS_RCU_RST, &reg_data);
+	IFX_MEI_LongWordWrite ((u32) IFXMIPS_RCU_RST, reg_data | (1 << 24));
+
+	IFX_MEI_FuseInit (pDev);
+	for (i = 0; i < 4; i++) {
+		IFX_MEI_LongWordRead ((u32) (IFXMIPS_FUSE_BASE_ADDR) + 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) IFXMIPS_RCU_RST, &reg_data);
+	IFX_MEI_LongWordWrite ((u32) IFXMIPS_RCU_RST, reg_data & ~(1 << 24));
+	IFX_MEI_LongWordRead ((u32) IFXMIPS_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) IFXMIPS_RCU_RST, &arc_debug_data);
+	IFX_MEI_LongWordWrite ((u32) IFXMIPS_RCU_RST,
+		arc_debug_data | IFXMIPS_RCU_RST_REQ_DFE | IFXMIPS_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) IFXMIPS_RCU_RST, &reg_data);
+                IFX_MEI_LongWordWrite ((u32) IFXMIPS_RCU_RST, reg_data | IFXMIPS_RCU_RST_REQ_ARC_JTAG);
+		break;
+	case 0:
+	default:
+                //reserve gpio 9, 10, 11, 14, 19 for ARC JTAG
+                meierr = ifxmips_port_free_pin (0, 9);
+                if (meierr < 0) {
+                        IFX_MEI_EMSG ("Reserve GPIO 9 Fail.\n");
+                        goto jtag_end;
+                }
+                meierr = ifxmips_port_free_pin (0, 10);
+                if (meierr < 0) {
+                        IFX_MEI_EMSG ("Reserve GPIO 10 Fail.\n");
+                        goto jtag_end;
+                }
+                meierr = ifxmips_port_free_pin (0, 11);
+                if (meierr < 0) {
+                        IFX_MEI_EMSG ("Reserve GPIO 11 Fail.\n");
+                        goto jtag_end;
+                }
+                meierr = ifxmips_port_free_pin (0, 14);
+                if (meierr < 0) {
+                        IFX_MEI_EMSG ("Reserve GPIO 14 Fail.\n");
+                        goto jtag_end;
+                }
+                meierr = ifxmips_port_free_pin (1, 3);
+                if (meierr < 0) {
+                        IFX_MEI_EMSG ("Reserve GPIO 19 Fail.\n");
+                        goto jtag_end;
+                }
+		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;
+		}
+                printk("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 = (*IFXMIPS_ICU_IM0_IER) & (1 << 20);
+	im2_register = (*IFXMIPS_ICU_IM2_IER) & (1 << 20);
+	/* Turn off irq */
+	#ifdef CONFIG_IFXMIPS_AMAZON_SE
+	disable_irq (IFXMIPS_USB_OC_INT0);
+	disable_irq (IFXMIPS_USB_OC_INT2);
+	#elif defined(CONFIG_IFXMIPS_AR9)
+	disable_irq (IFXMIPS_USB_OC_INT0);
+	disable_irq (IFXMIPS_USB_OC_INT2);
+	#elif defined(CONFIG_IFXMIPS_DANUBE)
+	disable_irq (IFXMIPS_USB_OC_INT);
+	#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_IFXMIPS_AMAZON_SE
+	MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT0);
+	MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT2);
+	#elif defined(CONFIG_IFXMIPS_AMAZON_S)
+	MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT0);
+	MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT2);
+	#elif defined(CONFIG_IFXMIPS_DANUBE)
+	MEI_MASK_AND_ACK_IRQ (IFXMIPS_USB_OC_INT);
+	#endif
+	MEI_MASK_AND_ACK_IRQ (pDev->nIrq[IFX_DYING_GASP]);
+
+	/* Re-enable irq */
+	enable_irq(pDev->nIrq[IFX_DYING_GASP]);
+	*IFXMIPS_ICU_IM0_IER |= im0_register;
+	*IFXMIPS_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){
+                printk("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;
+
+	printk(KERN_INFO "[%s %d]: image_size = %ld\n", __func__, __LINE__, size);
+	// Alloc Swap Pages
+	for (idx = 0; size > 0 && idx < MAX_BAR_REGISTERS; idx++) {
+		// skip bar15 for XDATA usage.
+#ifndef CONFIG_IFXMIPS_MEI_FW_LOOPBACK
+		if (idx == XDATA_REGISTER)
+			continue;
+#endif
+#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;
+
+        printk("\n%s\n", __func__);
+
+	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;
+		printk(KERN_INFO "[%s %d] -> IFX_MEI_BarUpdate()\n", __func__, __LINE__);
+		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);       /* Ask init to reboot us */
+#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_IFXMIPS_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_IFXMIPS_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);
+	printk ("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);
+	printk ("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 + IFXMIPS_MEI_BASE_ADDR);
+
+	/* Write data register */
+	IFX_MEI_WRITE_REGISTER_L (value, ME_DBG_DATA + IFXMIPS_MEI_BASE_ADDR);
+
+	/* wait until complete - timeout at 40 */
+	for (i = 0; i < 40; i++) {
+		check = IFX_MEI_READ_REGISTER_L (ME_ARC2ME_STAT + IFXMIPS_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 + IFXMIPS_MEI_BASE_ADDR);
+}
+
+void
+arc_code_page_download (uint32_t arc_code_length, uint32_t * start_address)
+{
+	int count;
+
+	printk ("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) {
+		printk ("Get ARC_ACK\n");
+		got_int = 1;
+	}
+	else if (rd_mbox[0] == 0x5) {
+		printk ("Get ARC_BUSY\n");
+		got_int = 2;
+	}
+	else if (rd_mbox[0] == 0x3) {
+		printk ("Get ARC_EDONE\n");
+		if (rd_mbox[1] == 0x0) {
+			got_int = 3;
+			printk ("Get E_MEMTEST\n");
+			if (rd_mbox[2] != 0x1) {
+				got_int = 4;
+				printk ("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;
+
+	printk ("Waiting Starting\n");
+	while (mbox[0] == 0) {
+		ReadMbox (&mbox[0], 5);
+	}
+	printk ("Try to get mem test result.\n");
+	ReadMbox (&mbox[0], 5);
+	if (mbox[0] == 0xA) {
+		printk ("Success.\n");
+	}
+	else if (mbox[0] == 0xA) {
+		printk ("Fail,address %X,except data %X,receive data %X\n",
+			mbox[1], mbox[2], mbox[3]);
+	}
+	else {
+		printk ("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;
+	}
+
+	printk ("send ping msg\n");
+	wr_mbox[0] = MEI_PING;
+	WriteMbox (&wr_mbox[0], 10);
+
+	while (got_int == 0) {
+		MEI_WAIT (100);
+	}
+
+	printk ("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);
+	printk ("sleeping\n");
+	while (1) {
+		if (got_int > 0) {
+
+			if (got_int > 3)
+				printk ("got_int >>>> 3\n");
+			else
+				printk ("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 +  IFXMIPS_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),
+							IFXMIPS_MEI_BASE_ADDR + ME_XMEM_BAR_BASE  + idx * 4);
+			printk ("bar%d(%X)=%X\n", idx,
+				IFXMIPS_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);
+	printk(KERN_INFO "[%s %s %d]: Setting MEI_MASTER_MODE..\n", __FILE__, __func__, __LINE__);
+	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);
+	printk(KERN_INFO "[%s %s %d]: Setting JTAG_MASTER_MODE..\n", __FILE__, __func__, __LINE__);
+	IFX_MEI_ControlModeSet (pDev, JTAG_MASTER_MODE);
+
+	printk(KERN_INFO "[%s %s %d]: Halting ARC...\n", __FILE__, __func__, __LINE__);
+	IFX_MEI_HaltArc (&dsl_devices[0]);
+
+#ifdef DFE_PING_TEST
+
+	printk ("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
+
+	printk ("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]);
+	printk ("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);
+	printk(KERN_INFO "[%s %s %d]: run ARC...\n", __FILE__, __func__, __LINE__);
+	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]      = IFXMIPS_MEI_INT;
+		pDev->nIrq[IFX_DYING_GASP] = IFXMIPS_MEI_DYING_GASP_INT;
+		pDev->base_address = IFXMIPS_MEI_BASE_ADDR;
+
+                /* Power up MEI */
+#ifdef CONFIG_IFXMIPS_AMAZON_SE
+		*IFXMIPS_PMU_PWDCR &= ~(1 << 9);  // enable dsl
+                *IFXMIPS_PMU_PWDCR &= ~(1 << 15); // enable AHB base
+#else
+        	temp = ifxmips_r32(IFXMIPS_PMU_PWDCR);
+        	temp &= 0xffff7dbe;
+        	ifxmips_w32(temp, IFXMIPS_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;
+}
+
+static 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 = IFXMIPS_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:
+		printk("\n%s: DSL_FIO_BSP_DSL_START\n",__func__);
+		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;
+
+	case DSL_FIO_BSP_GET_CHIP_INFO:
+                bsp_chip_info.major = 1;
+                bsp_chip_info.minor = IFXMIPS_MPS_CHIPID_VERSION_GET(*IFXMIPS_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;
+	*IFXMIPS_RCU_RST |= IFXMIPS_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);
+	}
+	*IFXMIPS_RCU_RST &= ~IFXMIPS_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 int
+IFX_MEI_UserIoctls (DSL_DRV_inode_t * ino, DSL_DRV_file_t * fil,
+			  unsigned int command, unsigned long lon)
+{
+	int error = 0;
+	int maj = MAJOR (ino->i_rdev);
+	int num = MINOR (ino->i_rdev);
+	DSL_DEV_Device_t *pDev;
+
+	pDev = IFX_BSP_HandleGet (maj, num);
+	if (pDev == NULL)
+		return -EIO;
+
+	error = IFX_MEI_Ioctls (pDev, 0, command, lon);
+	return error;
+}
+
+#ifdef CONFIG_PROC_FS
+/*
+ * Register a callback function for linux proc filesystem
+ */
+static int
+IFX_MEI_InitProcFS (int num)
+{
+	struct proc_dir_entry *entry;
+	int i ;
+	DSL_DEV_Device_t *pDev;
+	reg_entry_t regs_temp[PROC_ITEMS] = {
+		/* flag, name,      description } */
+		{NULL, "arcmsgav", "arc to mei message ", 0},
+		{NULL, "cmv_reply", "cmv needs reply", 0},
+		{NULL, "cmv_waiting", "waiting for cmv reply from arc", 0},
+		{NULL, "modem_ready_cnt", "ARC to MEI indicator count", 0},
+		{NULL, "cmv_count", "MEI to ARC CMVs", 0},
+		{NULL, "reply_count", "ARC to MEI Reply", 0},
+		{NULL, "Recent_indicator", "most recent indicator", 0},
+		{NULL, "fw_version", "Firmware Version", 0},
+		{NULL, "fw_date", "Firmware Date", 0},
+		{NULL, "meminfo", "Memory Allocation Information", 0},
+		{NULL, "version", "MEI version information", 0},
+	};
+
+	pDev = &dsl_devices[num];
+	if (pDev == NULL)
+		return -ENOMEM;
+
+	regs_temp[0].flag = &(DSL_DEV_PRIVATE(pDev)->arcmsgav);
+	regs_temp[1].flag = &(DSL_DEV_PRIVATE(pDev)->cmv_reply);
+	regs_temp[2].flag = &(DSL_DEV_PRIVATE(pDev)->cmv_waiting);
+	regs_temp[3].flag = &(DSL_DEV_PRIVATE(pDev)->modem_ready_cnt);
+	regs_temp[4].flag = &(DSL_DEV_PRIVATE(pDev)->cmv_count);
+	regs_temp[5].flag = &(DSL_DEV_PRIVATE(pDev)->reply_count);
+	regs_temp[6].flag = (int *) &(DSL_DEV_PRIVATE(pDev)->Recent_indicator);
+
+	memcpy ((char *) regs[num], (char *) regs_temp, sizeof (regs_temp));
+	// procfs
+	meidir = proc_mkdir (MEI_DIRNAME, NULL);
+	if (meidir == NULL) {
+		IFX_MEI_EMSG ("Failed to create /proc/%s\n",  MEI_DIRNAME);
+		return (-ENOMEM);
+	}
+
+	for (i = 0; i < NUM_OF_REG_ENTRY; i++) {
+		entry = create_proc_entry (regs[num][i].name,
+					   S_IWUSR | S_IRUSR | S_IRGRP |
+					   S_IROTH, meidir);
+		if (entry) {
+			regs[num][i].low_ino = entry->low_ino;
+			entry->proc_fops = &IFX_MEI_ProcOperations;
+		}
+		else {
+			IFX_MEI_EMSG ("Failed to create /proc/%s/%s\n", MEI_DIRNAME, regs[num][i].name);
+			return (-ENOMEM);
+		}
+	}
+	return 0;
+}
+
+/*
+ * Reading function for linux proc filesystem
+ */
+static int
+IFX_MEI_ProcRead (struct file *file, char *buf, size_t nbytes, loff_t * ppos)
+{
+	int i_ino = (file->f_dentry->d_inode)->i_ino;
+	char *p = buf;
+	int i;
+	int num;
+	reg_entry_t *entry = NULL;
+	DSL_DEV_Device_t *pDev = NULL;
+	DSL_DEV_WinHost_Message_t m;
+
+	for (num = 0; num < BSP_MAX_DEVICES; num++) {
+		for (i = 0; i < NUM_OF_REG_ENTRY; i++) {
+			if (regs[num][i].low_ino == (unsigned short)i_ino) {
+				entry = &regs[num][i];
+				pDev = &dsl_devices[num];
+				break;
+			}
+		}
+	}
+	if (entry == NULL)
+		return -EINVAL;
+	else if (strcmp(entry->name, "meminfo") == 0) {
+		if (*ppos > 0)	/* Assume reading completed in previous read */
+			return 0;
+		p += sprintf (p, "No           Address     Size\n");
+		for (i = 0; i < MAX_BAR_REGISTERS; i++) {
+			p += sprintf (p, "BAR[%02d] Addr:0x%08X Size:%lu\n",
+					  i, (u32) DSL_DEV_PRIVATE(pDev)->adsl_mem_info[i].address,
+					  DSL_DEV_PRIVATE(pDev)-> adsl_mem_info[i].size);
+			//printk( "BAR[%02d] Addr:0x%08X Size:%d\n",i,adsl_mem_info[i].address,adsl_mem_info[i].size);
+		}
+		*ppos += (p - buf);
+	} else if (strcmp(entry->name, "fw_version") == 0) {
+		if (*ppos > 0)	/* Assume reading completed in previous read */
+			return 0;
+		if (DSL_DEV_PRIVATE(pDev)->modem_ready_cnt < 1)
+			return -EAGAIN;
+                //major:bits 0-7
+                //minor:bits 8-15
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_INFO, 54, 0, 1, NULL, m.msg.TxMessage);
+		if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS)
+			return -EIO;
+		p += sprintf(p, "FW Version: %d.%d.", m.msg.RxMessage[4] & 0xFF, (m.msg.RxMessage[4] >> 8) & 0xFF);
+                //sub_version:bits 4-7
+                //int_version:bits 0-3
+                //spl_appl:bits 8-13
+                //rel_state:bits 14-15
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_INFO, 54, 1, 1, NULL, m.msg.TxMessage);
+		if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS)
+			return -EIO;
+		p += sprintf(p, "%d.%d.%d.%d\n",
+			(m.msg.RxMessage[4] >> 4) & 0xF, m.msg.RxMessage[4] & 0xF,
+			(m.msg.RxMessage[4] >> 14) & 3, (m.msg.RxMessage[4] >> 8) & 0x3F);
+                *ppos += (p - buf);
+	} else if (strcmp(entry->name, "fw_date") == 0) {
+		if (*ppos > 0)	/* Assume reading completed in previous read */
+			return 0;
+		if (DSL_DEV_PRIVATE(pDev)->modem_ready_cnt < 1)
+			return -EAGAIN;
+
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_INFO, 55, 0, 1, NULL, m.msg.TxMessage);
+		if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS)
+			return -EIO;
+		/* Day/Month */
+		p += sprintf(p, "FW Date: %d.%d.", m.msg.RxMessage[4] & 0xFF, (m.msg.RxMessage[4] >> 8) & 0xFF);
+
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_INFO, 55, 2, 1, NULL, m.msg.TxMessage);
+		if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS)
+			return -EIO;
+		/* Year */
+		p += sprintf(p, "%d ", m.msg.RxMessage[4]);
+
+                makeCMV (H2D_CMV_READ, DSL_CMV_GROUP_INFO, 55, 1, 1, NULL, m.msg.TxMessage);
+		if (DSL_BSP_SendCMV (pDev, m.msg.TxMessage, YES_REPLY, m.msg.RxMessage) != DSL_DEV_MEI_ERR_SUCCESS)
+			return -EIO;
+		/* Hour:Minute */
+		p += sprintf(p, "%d:%d\n", (m.msg.RxMessage[4] >> 8) & 0xFF, m.msg.RxMessage[4] & 0xFF);
+
+                *ppos += (p - buf);
+	} else if (strcmp(entry->name, "version") == 0) {
+		if (*ppos > 0)	/* Assume reading completed in previous read */
+			return 0;
+		p += sprintf (p, "IFX MEI V%ld.%ld.%ld\n", bsp_mei_version.major, bsp_mei_version.minor, bsp_mei_version.revision);
+
+		*ppos += (p - buf);
+	} else if (entry->flag != (int *) DSL_DEV_PRIVATE(pDev)->Recent_indicator) {
+		if (*ppos > 0)	/* Assume reading completed in previous read */
+			return 0;	// indicates end of file
+		p += sprintf (p, "0x%08X\n\n", *(entry->flag));
+		*ppos += (p - buf);
+		if ((p - buf) > nbytes)	/* Assume output can be read at one time */
+			return -EINVAL;
+	} else {
+		if ((int) (*ppos) / ((int) 7) == 16)
+			return 0;	// indicate end of the message
+		p += sprintf (p, "0x%04X\n\n", *(((u16 *) (entry->flag)) + (int) (*ppos) / ((int) 7)));
+		*ppos += (p - buf);
+	}
+	return p -  buf;
+}
+
+/*
+ * Writing function for linux proc filesystem
+ */
+static ssize_t
+IFX_MEI_ProcWrite (struct file *file, const char *buffer, size_t count, loff_t * ppos)
+{
+	int i_ino = (file->f_dentry->d_inode)->i_ino;
+	reg_entry_t *current_reg = NULL;
+	int i = 0;
+	int num = 0;
+	unsigned long newRegValue = 0;
+	char *endp = NULL;
+	DSL_DEV_Device_t *pDev = NULL;
+
+	for (num = 0; num < BSP_MAX_DEVICES; num++) {
+		for (i = 0; i < NUM_OF_REG_ENTRY; i++) {
+			if (regs[num][i].low_ino == i_ino) {
+				current_reg = &regs[num][i];
+				pDev = &dsl_devices[num];
+				break;
+			}
+		}
+	}
+	if ((current_reg == NULL)
+	    || (current_reg->flag ==
+		(int *) DSL_DEV_PRIVATE(pDev)->
+		Recent_indicator))
+		return -EINVAL;
+
+	newRegValue = simple_strtoul (buffer, &endp, 0);
+	*(current_reg->flag) = (int) newRegValue;
+	return (count + endp - buffer);
+}
+#endif //CONFIG_PROC_FS
+
+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
+ */
+int __init
+IFX_MEI_ModuleInit (void)
+{
+	int i = 0;
+
+	printk ("IFX MEI Version %ld.%02ld.%02ld", 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) {
+			printk ("%s: Init device fail!\n", __FUNCTION__);
+			return -EIO;
+		}
+		IFX_MEI_InitDevNode (i);
+#ifdef CONFIG_PROC_FS
+		IFX_MEI_InitProcFS (i);
+#endif
+	}
+        for (i = 0; i <= DSL_BSP_CB_LAST ; i++)
+		dsl_bsp_event_callback[i].function = NULL;
+
+#ifdef CONFIG_IFXMIPS_MEI_FW_LOOPBACK
+	printk(KERN_INFO "[%s %s %d]: Start loopback test...\n", __FILE__, __func__, __LINE__);
+	DFE_Loopback_Test ();
+#endif
+
+	return 0;
+}
+
+void __exit
+IFX_MEI_ModuleExit (void)
+{
+	int i = 0;
+	int num;
+
+	for (num = 0; num < BSP_MAX_DEVICES; num++) {
+		IFX_MEI_CleanUpDevNode (num);
+#ifdef CONFIG_PROC_FS
+		for (i = 0; i < NUM_OF_REG_ENTRY; i++) {
+			remove_proc_entry (regs[num][i].name, meidir);
+		}
+#endif
+	}
+
+	remove_proc_entry (MEI_DIRNAME, NULL);
+	for (i = 0; i < BSP_MAX_DEVICES; i++) {
+		for (i = 0; i < BSP_MAX_DEVICES; i++) {
+			IFX_MEI_ExitDevice (i);
+		}
+	}
+}
+
+/* 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_init (IFX_MEI_ModuleInit);
+module_exit (IFX_MEI_ModuleExit);