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, 45 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch b/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
new file mode 100644
index 0000000000..77b1b5693e
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0495-Revert-Bluetooth-Always-request-for-user-confirmatio.patch
@@ -0,0 +1,45 @@
+From 637d132b72c9208e086b71fbf39954cff3fb851c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Mon, 1 Mar 2021 09:12:44 +0000
+Subject: [PATCH] Revert "Bluetooth: Always request for user
+ confirmation for Just Works (LE SC)"
+
+This reverts commit ffee202a78c2980688bc5d2f7d56480e69a5e0c9.
+
+The commit "Bluetooth: Always request for user confirmation for Just
+Works" prevents BLE devices pairing in (at least) the Raspberry Pi OS
+GUI. After reverting it, pairing works again. Although this companion
+commit ("... (LE SC)") has not been demonstrated to be problematic,
+it follows the same logic and therefore could affect some use cases.
+
+If another solution to the problem is found then this reversion will
+be removed.
+
+See: https://github.com/raspberrypi/linux/issues/4139
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ net/bluetooth/smp.c | 5 +----
+ 1 file changed, 1 insertion(+), 4 deletions(-)
+
+--- a/net/bluetooth/smp.c
++++ b/net/bluetooth/smp.c
+@@ -2201,7 +2201,7 @@ mackey_and_ltk:
+ 	if (err)
+ 		return SMP_UNSPECIFIED;
+ 
+-	if (smp->method == REQ_OOB) {
++	if (smp->method == JUST_WORKS || smp->method == REQ_OOB) {
+ 		if (hcon->out) {
+ 			sc_dhkey_check(smp);
+ 			SMP_ALLOW_CMD(smp, SMP_CMD_DHKEY_CHECK);
+@@ -2216,9 +2216,6 @@ mackey_and_ltk:
+ 	confirm_hint = 0;
+ 
+ confirm:
+-	if (smp->method == JUST_WORKS)
+-		confirm_hint = 1;
+-
+ 	err = mgmt_user_confirm_request(hcon->hdev, &hcon->dst, hcon->type,
+ 					hcon->dst_type, passkey, confirm_hint);
+ 	if (err)