bcm53xx: add testing support for kernel 5.10

It still requires fixing PCIe support:
[    6.644699] pcie_iproc_bcma bcma0:7: host bridge /axi@18000000/pcie@12000 ranges:
[    6.652217] pcie_iproc_bcma bcma0:7:   No bus range found for /axi@18000000/pcie@12000, using [bus 00-ff]
[    6.661833] OF: /axi@18000000/pcie@12000: Missing device_type
[    6.667622] pcie_iproc_bcma: probe of bcma0:7 failed with error -12
[    6.673985] pcie_iproc_bcma bcma0:8: host bridge /axi@18000000/pcie@13000 ranges:
[    6.681514] pcie_iproc_bcma bcma0:8:   No bus range found for /axi@18000000/pcie@13000, using [bus 00-ff]
[    6.691137] pcie_iproc_bcma: probe of bcma0:8 failed with error -12
[    6.697522] pcie_iproc_bcma bcma0:9: host bridge /axi@18000000/pcie@14000 ranges:
[    6.705048] pcie_iproc_bcma bcma0:9:   No bus range found for /axi@18000000/pcie@14000, using [bus 00-ff]
[    6.714669] pcie_iproc_bcma: probe of bcma0:9 failed with error -12

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 71 insertions, 0 deletions

diff --git a/target/linux/bcm53xx/patches-5.10/030-v5.11-0004-ARM-dts-BCM5301X-Linksys-EA9500-add-fixed-partitions.patch b/target/linux/bcm53xx/patches-5.10/030-v5.11-0004-ARM-dts-BCM5301X-Linksys-EA9500-add-fixed-partitions.patch
new file mode 100644
index 0000000000..c3fdd163d9
--- /dev/null
+++ b/target/linux/bcm53xx/patches-5.10/030-v5.11-0004-ARM-dts-BCM5301X-Linksys-EA9500-add-fixed-partitions.patch
@@ -0,0 +1,71 @@
+From bd9a01e28e5d1632528e531480b42d6e2c861d88 Mon Sep 17 00:00:00 2001
+From: Vivek Unune <npcomplete13@gmail.com>
+Date: Sun, 1 Nov 2020 15:08:03 -0500
+Subject: [PATCH] ARM: dts: BCM5301X: Linksys EA9500 add fixed partitions
+
+This router has dual paritions to store trx firmware image and
+dual partitions for nvram. The second one in each of these cases acts
+as a backup store.
+
+When tested with OpenWrt, the default partition parser causes two issues:
+
+1. It labels both nvram partitions as nvram. In factory, second one is
+labeled devinfo.
+2. It parses second trx image and tries to create second 'linux' partition
+and fails with - cannot create duplicate 'linux' partition
+
+The following patch works around both of these issues.
+
+Signed-off-by: Vivek Unune <npcomplete13@gmail.com>
+Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ .../boot/dts/bcm47094-linksys-panamera.dts    | 41 +++++++++++++++++++
+ 1 file changed, 41 insertions(+)
+
+--- a/arch/arm/boot/dts/bcm47094-linksys-panamera.dts
++++ b/arch/arm/boot/dts/bcm47094-linksys-panamera.dts
+@@ -292,3 +292,44 @@
+ &usb3_phy {
+ 	status = "okay";
+ };
++
++&nandcs {
++	partitions {
++		compatible = "fixed-partitions";
++		#address-cells = <1>;
++		#size-cells = <1>;
++
++		partition@0 {
++			label = "boot";
++			reg = <0x0000000 0x0080000>;
++			read-only;
++		};
++
++		partition@80000 {
++			label = "nvram";
++			reg = <0x080000 0x0100000>;
++		};
++
++		partition@180000{
++			label = "devinfo";
++			reg = <0x0180000 0x080000>;
++		};
++
++		partition@200000 {
++			label = "firmware";
++			reg = <0x0200000 0x01D00000>;
++			compatible = "brcm,trx";
++		};
++
++		partition@1F00000 {
++			label = "failsafe";
++			reg = <0x01F00000 0x01D00000>;
++			read-only;
++		};
++
++		partition@5200000 {
++			label = "system";
++			reg = <0x05200000 0x02E00000>;
++		};
++	};
++};