diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
index 91cc97617f4..8c829f9c6b0 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.c
@@ -1491,8 +1491,14 @@ static int ltq_ptm_probe(struct platform_device *pdev)
             goto REGISTER_NETDEV_FAIL;
     }
 
+    g_ptm_priv_data.irq = platform_get_irq(pdev, 0);
+    if (g_ptm_priv_data.irq < 0) {
+        err("platform_get_irq fail");
+        goto REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL;
+    }
+
     /*  register interrupt handler  */
-    ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
+    ret = request_irq(g_ptm_priv_data.irq, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
     if ( ret ) {
         if ( ret == -EBUSY ) {
             err("IRQ may be occupied by other driver, please reconfig to disable it.");
@@ -1502,7 +1508,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
         }
         goto REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL;
     }
-    disable_irq(PPE_MAILBOX_IGU1_INT);
+    disable_irq(g_ptm_priv_data.irq);
 
     ret = ifx_pp32_start(0);
     if ( ret ) {
@@ -1512,7 +1518,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     IFX_REG_W32(0, MBOX_IGU1_IER);
     IFX_REG_W32(~0, MBOX_IGU1_ISRC);
 
-    enable_irq(PPE_MAILBOX_IGU1_INT);
+    enable_irq(g_ptm_priv_data.irq);
 
 
     proc_file_create();
@@ -1534,7 +1540,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     return 0;
 
 PP32_START_FAIL:
-    free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data);
+    free_irq(g_ptm_priv_data.irq, &g_ptm_priv_data);
 REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL:
     i = ARRAY_SIZE(g_net_dev);
 REGISTER_NETDEV_FAIL:
@@ -1572,7 +1578,7 @@ static int ltq_ptm_remove(struct platform_device *pdev)
 
     ifx_pp32_stop(0);
 
-    free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data);
+    free_irq(g_ptm_priv_data.irq, &g_ptm_priv_data);
 
     for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ )
         unregister_netdev(g_net_dev[i]);
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.h
index 6d1cbc7ea32..dd8a2fddca7 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_adsl.h
@@ -35,7 +35,6 @@
 #include "ifxmips_ptm_fw_regs_adsl.h"
 
 #define CONFIG_IFXMIPS_DSL_CPE_MEI
-#define INT_NUM_IM2_IRL24	(INT_NUM_IM2_IRL0 + 24)
 
 #define IFX_REG_W32(_v, _r)               __raw_writel((_v), (volatile unsigned int *)(_r))
 #define IFX_REG_R32(_r)                    __raw_readl((volatile unsigned int *)(_r))
@@ -104,6 +103,7 @@ struct ptm_itf {
 
 struct ptm_priv_data {
     struct ptm_itf                  itf[MAX_ITF_NUMBER];
+    int                             irq;
 
     void                           *rx_desc_base;
     void                           *tx_desc_base;
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_amazon_se.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_amazon_se.h
index f912039c38d..be68d7894f9 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_amazon_se.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_amazon_se.h
@@ -176,11 +176,6 @@
 
 #define EMA_ALIGNMENT                           4
 
-/*
- *  Mailbox IGU1 Interrupt
- */
-#define PPE_MAILBOX_IGU1_INT                    INT_NUM_IM2_IRL13
-
 
 
 #endif  //  IFXMIPS_PTM_PPE_AMAZON_SE_H
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_ar9.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_ar9.h
index 9355747af63..4d730499ba9 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_ar9.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_ar9.h
@@ -203,11 +203,5 @@
 #define SW_P2_CTL                       SW_REG(0x00C)
 
 
-/*
- *  Mailbox IGU1 Interrupt
- */
-#define PPE_MAILBOX_IGU1_INT            INT_NUM_IM2_IRL24
-
-
 
 #endif  //  IFXMIPS_PTM_PPE_AR9_H
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_danube.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_danube.h
index 5f896e60c27..f03aae82514 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_danube.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_danube.h
@@ -125,11 +125,6 @@
 
 #define EMA_ALIGNMENT                   4
 
-/*
- *  Mailbox IGU1 Interrupt
- */
-#define PPE_MAILBOX_IGU1_INT            INT_NUM_IM2_IRL24
-
 
 
 #endif  //  IFXMIPS_PTM_PPE_DANUBE_H
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_vr9.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_vr9.h
index 4a8c2f7bc9d..52fa2869333 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_vr9.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_ppe_vr9.h
@@ -195,11 +195,6 @@
 #define PDMA_ALIGNMENT                  32              //  same as Central DMA because of descriptor swap
 #define EMA_ALIGNMENT                   PDMA_ALIGNMENT
 
-/*
- *  Mailbox IGU1 Interrupt
- */
-#define PPE_MAILBOX_IGU1_INT            INT_NUM_IM2_IRL24
-
 
 
 #endif  //  IFXMIPS_PTM_PPE_VR9_H
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
index 54d88a21eca..9cd9cd59869 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.c
@@ -1013,8 +1013,14 @@ static int ltq_ptm_probe(struct platform_device *pdev)
             goto REGISTER_NETDEV_FAIL;
     }
 
+    g_ptm_priv_data.irq = platform_get_irq(pdev, 0);
+    if (g_ptm_priv_data.irq < 0) {
+        err("platform_get_irq fail");
+        goto REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL;
+    }
+
     /*  register interrupt handler  */
-    ret = request_irq(PPE_MAILBOX_IGU1_INT, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
+    ret = request_irq(g_ptm_priv_data.irq, mailbox_irq_handler, 0, "ptm_mailbox_isr", &g_ptm_priv_data);
     if ( ret ) {
         if ( ret == -EBUSY ) {
             err("IRQ may be occupied by other driver, please reconfig to disable it.");
@@ -1024,7 +1030,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
         }
         goto REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL;
     }
-    disable_irq(PPE_MAILBOX_IGU1_INT);
+    disable_irq(g_ptm_priv_data.irq);
 
     ret = ifx_pp32_start(0);
     if ( ret ) {
@@ -1034,7 +1040,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     IFX_REG_W32(1 << 16, MBOX_IGU1_IER);    //  enable SWAP interrupt
     IFX_REG_W32(~0, MBOX_IGU1_ISRC);
 
-    enable_irq(PPE_MAILBOX_IGU1_INT);
+    enable_irq(g_ptm_priv_data.irq);
 
     ifx_mei_atm_showtime_check(&g_showtime, &port_cell, &g_xdata_addr);
     if ( g_showtime ) {
@@ -1052,7 +1058,7 @@ static int ltq_ptm_probe(struct platform_device *pdev)
     return 0;
 
 PP32_START_FAIL:
-    free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data);
+    free_irq(g_ptm_priv_data.irq, &g_ptm_priv_data);
 REQUEST_IRQ_PPE_MAILBOX_IGU1_INT_FAIL:
     i = ARRAY_SIZE(g_net_dev);
 REGISTER_NETDEV_FAIL:
@@ -1080,7 +1086,7 @@ static int ltq_ptm_remove(struct platform_device *pdev)
 
     ifx_pp32_stop(0);
 
-    free_irq(PPE_MAILBOX_IGU1_INT, &g_ptm_priv_data);
+    free_irq(g_ptm_priv_data.irq, &g_ptm_priv_data);
 
     for ( i = 0; i < ARRAY_SIZE(g_net_dev); i++ )
         unregister_netdev(g_net_dev[i]);
diff --git a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.h b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.h
index b12c354fe0b..90ed9d9021e 100644
--- a/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.h
+++ b/package/kernel/lantiq/ltq-ptm/src/ifxmips_ptm_vdsl.h
@@ -31,8 +31,6 @@
 #include "ifxmips_ptm_ppe_common.h"
 #include "ifxmips_ptm_fw_regs_vdsl.h"
 
-#define INT_NUM_IM2_IRL24	(INT_NUM_IM2_IRL0 + 24)
-
 #define IFX_REG_W32(_v, _r)               __raw_writel((_v), (volatile unsigned int *)(_r))
 #define IFX_REG_R32(_r)                    __raw_readl((volatile unsigned int *)(_r))
 #define IFX_REG_W32_MASK(_clr, _set, _r)   IFX_REG_W32((IFX_REG_R32((_r)) & ~(_clr)) | (_set), (_r))
@@ -99,6 +97,7 @@ struct ptm_itf {
 
 struct ptm_priv_data {
     struct ptm_itf                  itf[MAX_ITF_NUMBER];
+    int                             irq;
 };