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, 79 insertions, 0 deletions

diff --git a/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch b/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch
new file mode 100644
index 0000000000..f5abb5d3c9
--- /dev/null
+++ b/target/linux/bcm27xx/patches-5.10/950-0557-r8152-search-the-configuration-of-vendor-mode.patch
@@ -0,0 +1,79 @@
+From 579f58dd2819910354753bc5489fc1588fe9cfe2 Mon Sep 17 00:00:00 2001
+From: Hayes Wang <hayeswang@realtek.com>
+Date: Fri, 16 Apr 2021 16:04:37 +0800
+Subject: [PATCH] r8152: search the configuration of vendor mode
+
+commit c2198943e33b100ed21dfb636c8fa6baef841e9d upstream.
+
+The vendor mode is not always at config #1, so it is necessary to
+set the correct configuration number.
+
+Signed-off-by: Hayes Wang <hayeswang@realtek.com>
+Signed-off-by: David S. Miller <davem@davemloft.net>
+---
+ drivers/net/usb/r8152.c | 39 +++++++++++++++++++++++++++++++++++----
+ 1 file changed, 35 insertions(+), 4 deletions(-)
+
+--- a/drivers/net/usb/r8152.c
++++ b/drivers/net/usb/r8152.c
+@@ -29,7 +29,7 @@
+ #include <linux/usb/r8152.h>
+ 
+ /* Information for net-next */
+-#define NETNEXT_VERSION		"11"
++#define NETNEXT_VERSION		"12"
+ 
+ /* Information for net */
+ #define NET_VERSION		"11"
+@@ -8108,6 +8108,39 @@ static void r8156b_init(struct r8152 *tp
+ 	tp->coalesce = 15000;	/* 15 us */
+ }
+ 
++static bool rtl_vendor_mode(struct usb_interface *intf)
++{
++	struct usb_host_interface *alt = intf->cur_altsetting;
++	struct usb_device *udev;
++	struct usb_host_config *c;
++	int i, num_configs;
++
++	if (alt->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC)
++		return true;
++
++	/* The vendor mode is not always config #1, so to find it out. */
++	udev = interface_to_usbdev(intf);
++	c = udev->config;
++	num_configs = udev->descriptor.bNumConfigurations;
++	for (i = 0; i < num_configs; (i++, c++)) {
++		struct usb_interface_descriptor	*desc = NULL;
++
++		if (c->desc.bNumInterfaces > 0)
++			desc = &c->intf_cache[0]->altsetting->desc;
++		else
++			continue;
++
++		if (desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
++			usb_driver_set_configuration(udev, c->desc.bConfigurationValue);
++			break;
++		}
++	}
++
++	WARN_ON_ONCE(i == num_configs);
++
++	return false;
++}
++
+ static int rtl8152_pre_reset(struct usb_interface *intf)
+ {
+ 	struct r8152 *tp = usb_get_intfdata(intf);
+@@ -9346,10 +9379,8 @@ static int rtl8152_probe(struct usb_inte
+ 	if (version == RTL_VER_UNKNOWN)
+ 		return -ENODEV;
+ 
+-	if (udev->actconfig->desc.bConfigurationValue != 1) {
+-		usb_driver_set_configuration(udev, 1);
++	if (!rtl_vendor_mode(intf))
+ 		return -ENODEV;
+-	}
+ 
+ 	if (intf->cur_altsetting->desc.bNumEndpoints < 3)
+ 		return -ENODEV;