diff --git a/target/linux/bcm63xx/patches-5.4/330-MIPS-BCM63XX-add-a-new-cpu-variant-helper.patch b/target/linux/bcm63xx/patches-5.4/330-MIPS-BCM63XX-add-a-new-cpu-variant-helper.patch
new file mode 100644
index 0000000..07d3f9d
--- /dev/null
+++ b/target/linux/bcm63xx/patches-5.4/330-MIPS-BCM63XX-add-a-new-cpu-variant-helper.patch
@@ -0,0 +1,77 @@
+From c50acd37b425a8a907a6f7f93aa2e658256e79ce Mon Sep 17 00:00:00 2001
+From: Jonas Gorski <jogo@openwrt.org>
+Date: Sat, 7 Dec 2013 14:08:36 +0100
+Subject: [PATCH 40/53] MIPS: BCM63XX: add a new cpu variant helper
+
+---
+ arch/mips/bcm63xx/cpu.c                          | 10 ++++++++++
+ arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h | 18 ++++++++++++++++++
+ 2 files changed, 28 insertions(+)
+
+--- a/arch/mips/bcm63xx/cpu.c
++++ b/arch/mips/bcm63xx/cpu.c
+@@ -27,6 +27,8 @@ EXPORT_SYMBOL(bcm63xx_irqs);
+ u16 bcm63xx_cpu_id __read_mostly;
+ EXPORT_SYMBOL(bcm63xx_cpu_id);
+ 
++static u32 bcm63xx_cpu_variant __read_mostly;
++
+ static u8 bcm63xx_cpu_rev;
+ static unsigned int bcm63xx_cpu_freq;
+ static unsigned int bcm63xx_memory_size;
+@@ -99,6 +101,13 @@ static const int bcm6368_irqs[] = {
+ 
+ };
+ 
++u32 bcm63xx_get_cpu_variant(void)
++{
++	return bcm63xx_cpu_variant;
++}
++
++EXPORT_SYMBOL(bcm63xx_get_cpu_variant);
++
+ u8 bcm63xx_get_cpu_rev(void)
+ {
+ 	return bcm63xx_cpu_rev;
+@@ -333,6 +342,7 @@ void __init bcm63xx_cpu_init(void)
+ 	/* read out CPU type */
+ 	tmp = bcm_readl(chipid_reg);
+ 	bcm63xx_cpu_id = (tmp & REV_CHIPID_MASK) >> REV_CHIPID_SHIFT;
++	bcm63xx_cpu_variant = bcm63xx_cpu_id;
+ 	bcm63xx_cpu_rev = (tmp & REV_REVID_MASK) >> REV_REVID_SHIFT;
+ 
+ 	switch (bcm63xx_cpu_id) {
+--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
++++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_cpu.h
+@@ -20,6 +20,7 @@
+ #define BCM6368_CPU_ID		0x6368
+ 
+ void __init bcm63xx_cpu_init(void);
++u32 bcm63xx_get_cpu_variant(void);
+ u8 bcm63xx_get_cpu_rev(void);
+ unsigned int bcm63xx_get_cpu_freq(void);
+ 
+@@ -83,6 +84,23 @@ static inline u16 __pure bcm63xx_get_cpu
+ #define BCMCPU_IS_6362()	(bcm63xx_get_cpu_id() == BCM6362_CPU_ID)
+ #define BCMCPU_IS_6368()	(bcm63xx_get_cpu_id() == BCM6368_CPU_ID)
+ 
++#define BCMCPU_VARIANT_IS_3368() \
++	(bcm63xx_get_cpu_variant() == BCM3368_CPU_ID)
++#define BCMCPU_VARIANT_IS_6328() \
++	(bcm63xx_get_cpu_variant() == BCM6328_CPU_ID)
++#define BCMCPU_VARIANT_IS_6338() \
++	(bcm63xx_get_cpu_variant() == BCM6338_CPU_ID)
++#define BCMCPU_VARIANT_IS_6345() \
++	(bcm63xx_get_cpu_variant() == BCM6345_CPU_ID)
++#define BCMCPU_VARIANT_IS_6348() \
++	(bcm63xx_get_cpu_variant() == BCM6348_CPU_ID)
++#define BCMCPU_VARIANT_IS_6358() \
++	(bcm63xx_get_cpu_cariant() == BCM6358_CPU_ID)
++#define BCMCPU_VARIANT_IS_6362() \
++	(bcm63xx_get_cpu_variant() == BCM6362_CPU_ID)
++#define BCMCPU_VARIANT_IS_6368() \
++	(bcm63xx_get_cpu_variant() == BCM6368_CPU_ID)
++
+ /*
+  * While registers sets are (mostly) the same across 63xx CPU, base
+  * address of these sets do change.