diff --git a/0001-brcm-rpi4-fix-usb-numeration.patch b/0001-brcm-rpi4-fix-usb-numeration.patch
new file mode 100644
index 000000000..810d78d35
--- /dev/null
+++ b/0001-brcm-rpi4-fix-usb-numeration.patch
@@ -0,0 +1,25 @@
+From 6e318871fac5533bd4dd82677b08ba7be17df55b Mon Sep 17 00:00:00 2001
+From: Peter Robinson <pbrobinson@gmail.com>
+Date: Tue, 12 Jan 2021 23:14:09 +0000
+Subject: [PATCH] brcm: rpi4: fix usb numeration
+
+Signed-off-by: Peter Robinson <pbrobinson@gmail.com>
+---
+ drivers/pci/controller/pcie-brcmstb.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/drivers/pci/controller/pcie-brcmstb.c b/drivers/pci/controller/pcie-brcmstb.c
+index 9c3d2982248d..78ed98e9b099 100644
+--- a/drivers/pci/controller/pcie-brcmstb.c
++++ b/drivers/pci/controller/pcie-brcmstb.c
+@@ -869,6 +869,7 @@ static int brcm_pcie_setup(struct brcm_pcie *pcie)
+ 
+ 	/* Reset the bridge */
+ 	pcie->bridge_sw_init_set(pcie, 1);
++	pcie->perst_set(pcie, 1);
+ 	usleep_range(100, 200);
+ 
+ 	/* Take the bridge out of reset */
+-- 
+2.29.2
+
diff --git a/kernel.spec b/kernel.spec
index b438268d7..e7bb319de 100644
--- a/kernel.spec
+++ b/kernel.spec
@@ -846,6 +846,9 @@ Patch102: 0001-update-phy-on-pine64-a64-devices.patch
 # OMAP Pandaboard fix
 Patch103: arm-pandaboard-fix-add-bluetooth.patch
 
+# Fix for USB on some newer RPi4 / firmware combinations
+Patch104: 0001-brcm-rpi4-fix-usb-numeration.patch
+
 # Nouveau mDP detection fix
 Patch107: 0001-drm-nouveau-kms-handle-mDP-connectors.patch