ARM: dts: BCM5301X: Relicense most DTS files to the GPL 2.0+ / MIT

These files were created and ever touched by a group of three people
only: Dan, Hauke and me. They were licensed under GNU/GPL or ISC.

Introducing and discussing SPDX-License-Identifier resulted in a
conclusion that ISC is a not recommended license (see also a
license-rules.rst). Moveover an old e-mail from Alan Cox was pointed
which explained that dual licensing is a safer solution than depending
on a common compatibility belief.

This commit switches most of BCM5301X DTS files to dual licensing using:
1) GPL 2.0+ to make sure they are compatible with Linux kernel
2) MIT to allow sharing with more permissive projects
Both licenses belong to the preferred ones (see LICENSES/preferred/).

An attempt to relicense remaining files will be made separately and will
require approve from more/other developers.
Signed-off-by: NRafał Miłecki <rafal@milecki.pl>
Reviewed-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: NHauke Mehrtens <hauke@hauke-m.de>
Acked-by: NDan Haab <dan.haab@luxul.com>
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>

arch/arm/boot/dts/bcm4708-asus-rt-ac56u.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Asus RT-AC56U
  *
  * Copyright (C) 2015 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-asus-rt-ac68u.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Asus RT-AC68U
  *
  * Copyright (C) 2015 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-linksys-ea6300-v1.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-luxul-xap-1510.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright 2016 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-luxul-xwc-1000.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Luxul XWC-1000
  *
  * Copyright 2014 Luxul Inc.
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-netgear-r6300-v2.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Netgear R6300 V2
  *
  * Copyright (C) 2014 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4708-smartrg-sr400ac.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X arm platform code.
  * DTS for SmartRG SR400ac
  *
  * Copyright (C) 2015 Rafał Miłecki <zajec5@gmail.com>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47081-asus-rt-n18u.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Asus RT-N18U
  *
  * Copyright (C) 2014 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47081-buffalo-wzr-600dhp2.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Buffalo WZR-600DHP2
  *
  * Copyright (C) 2014 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47081-luxul-xap-1410.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright 2017 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47081-luxul-xwr-1200.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright 2017 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47081-tplink-archer-c5-v2.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4709-linksys-ea9200.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4709-netgear-r7000.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for Netgear R7000
  *
  * Copyright (C) 2015 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm4709-tplink-archer-c9-v1.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-dlink-dir-885l.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X ARM platform code.
  * DTS for D-Link DIR-885L
  *
  * Copyright (C) 2016 Rafał Miłecki <zajec5@gmail.com>
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
- * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
- * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
- * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
- * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
- * PERFORMANCE OF THIS SOFTWARE.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-linksys-panamera.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-luxul-abr-4500.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-luxul-xbr-4500.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2017 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-luxul-xwr-3100.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright 2016 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm47094-netgear-r8500.dts

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright (C) 2016 Rafał Miłecki <rafal@milecki.pl>
- *
- * Licensed under the ISC license.
  */
 
 /dts-v1/;

arch/arm/boot/dts/bcm5301x-nand-cs0-bch1.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom Northstar NAND.
  *
  * Copyright (C) 2016 Rafał Miłecki <rafal.milecki@gmail.com>
- *
- * Licensed under the ISC license.
  */
 
 #include "bcm5301x-nand-cs0.dtsi"

arch/arm/boot/dts/bcm5301x-nand-cs0-bch4.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Copyright 2016 Luxul Inc.
- *
- * Licensed under the ISC license.
  */
 
 #include "bcm5301x-nand-cs0.dtsi"

arch/arm/boot/dts/bcm5301x-nand-cs0-bch8.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom BCM470X / BCM5301X Nand chip defaults.
  *
@@ -5,8 +6,6 @@
  * and uses 8 bit ECC.
  *
  * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 #include "bcm5301x-nand-cs0.dtsi"

arch/arm/boot/dts/bcm5301x-nand-cs0.dtsi

+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
 /*
  * Broadcom Northstar NAND.
  *
  * Copyright (C) 2015 Hauke Mehrtens <hauke@hauke-m.de>
- *
- * Licensed under the GNU/GPL. See COPYING for details.
  */
 
 / {