bcm27xx: add kernel 5.10 support

Rebased RPi foundation patches on linux 5.10.59, removed applied and reverted
patches, wireless patches and defconfig patches.

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 4B v1.1 4G
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch b/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch
new file mode 100644
index 0000000000..3194f4d553
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0524-dwc-otg-fix-clang-Wsometimes-uninitialized-warning.patch
@@ -0,0 +1,21 @@
+From bb876407b553af0fd55b2b07f0261d1f02eae6c1 Mon Sep 17 00:00:00 2001
+From: Jo Henke <37883863+jo-he@users.noreply.github.com>
+Date: Tue, 6 Apr 2021 11:38:28 +0000
+Subject: [PATCH] dwc-otg: fix clang -Wsometimes-uninitialized warning
+
+warning: variable 'retval' is used uninitialized whenever 'if' condition is false
+---
+ drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
++++ b/drivers/usb/host/dwc_otg/dwc_otg_cil_intr.c
+@@ -805,7 +805,7 @@ static int32_t dwc_otg_handle_pwrdn_sess
+  */
+ static uint32_t dwc_otg_handle_pwrdn_stschng_intr(dwc_otg_device_t *otg_dev)
+ {
+-	int retval;
++	uint32_t retval = 0;
+ 	gpwrdn_data_t gpwrdn = {.d32 = 0 };
+ 	gpwrdn_data_t gpwrdn_temp = {.d32 = 0 };
+ 	dwc_otg_core_if_t *core_if = otg_dev->core_if;