[U-Boot] [PATCH 1/4 v4] spi: Add Cadence QSPI DM driver used by SoCFPGA

[Stefan Roese <sr@denx.de>]

Hi Dinh, Hi Vince!

a quick question for you:

On 07.11.2014 16:04, Marek Vasut wrote:

<snip>

>> diff --git a/drivers/spi/cadence_qspi_apb.c
>> b/drivers/spi/cadence_qspi_apb.c new file mode 100644
>> index 0000000..00a115f
>> --- /dev/null
>> +++ b/drivers/spi/cadence_qspi_apb.c
>> @@ -0,0 +1,898 @@
>> +/*
>> + * Copyright (C) 2012 Altera Corporation <www.altera.com>
>> + * All rights reserved.
>> + *
>> + * Redistribution and use in source and binary forms, with or without
>> + * modification, are permitted provided that the following conditions are
>> met: + *  - Redistributions of source code must retain the above copyright
>> + *    notice, this list of conditions and the following disclaimer. + *
>> - Redistributions in binary form must reproduce the above copyright + *
>> notice, this list of conditions and the following disclaimer in the + *
>> documentation and/or other materials provided with the distribution. + *
>> - Neither the name of the Altera Corporation nor the
>> + *    names of its contributors may be used to endorse or promote products
>> + *    derived from this software without specific prior written
>> permission. + *
>> + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
>> IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
>> TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
>> PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL ALTERA
>> CORPORATION BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
>> EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO,
>> PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR
>> PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF
>> LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING
>> NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS
>> SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */
> 
> This license is kinda iffy. What is this all about please ?

Yes, I was wondering about this as well. And in the Linux kernel (Rocketboards)
this file is dual licensed. Here an extract:

<-------
/*
 * Driver for Cadence QSPI Controller
 *
 * Copyright (C) 2012 Altera Corporation
 *
 * This software is available to you under a choice of one of two
 * licenses.  You may choose to be licensed under the terms of the GNU
 * General Public License (GPL) Version 2, available from the file
 * COPYING in the main directory of this source tree, or the
 * OpenIB.org BSD license below:
 *
 *     Redistribution and use in source and binary forms, with or
 *     without modification, are permitted provided that the following
 *     conditions are met:
 *
 *      - Redistributions of source code must retain the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer.
 *
 *      - Redistributions in binary form must reproduce the above
 *        copyright notice, this list of conditions and the following
 *        disclaimer in the documentation and/or other materials
 *        provided with the distribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 */
<------

Could we not just use a "plain" GPL (v2) license here as well. Especially
since the other files in this driver are just normal GPL files.

Comments welcome.

Thanks,
Stefan