Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1581484

Re: [PATCH v9 2/3] fpga manager: Add cyclone-ps-spi driver for Altera FPGAs

From Alan Tull <delicious.quinoa@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH v9 2/3] fpga manager: Add cyclone-ps-spi driver for Altera FPGAs
Date 2017-02-15 18:20 +0100
Message-ID <tbbpl-2OF-21@gated-at.bofh.it> (permalink)
References <t3hLb-1N5-7@gated-at.bofh.it> <t3hLc-1N5-15@gated-at.bofh.it> <tb9GO-1II-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


On Wed, Feb 15, 2017 at 9:26 AM, Anatolij Gustschin <agust@denx.de> wrote:
> Hi Joshua,
>
> On Tue, 24 Jan 2017 14:19:33 -0800
> Joshua Clayton stillcompiling@gmail.com wrote:
> ...
>>+static int cyclonespi_write(struct fpga_manager *mgr, const char *buf,
>>+                          size_t count)
>>+{
>>+      struct cyclonespi_conf *conf = (struct cyclonespi_conf *)mgr->priv;
>>+      const char *fw_data = buf;
>>+      const char *fw_data_end = fw_data + count;
>>+
>>+      while (fw_data < fw_data_end) {
>>+              int ret;
>>+              size_t stride = min(fw_data_end - fw_data, SZ_4K);
>>+
>>+              rev_buf(fw_data, stride);
>
> Can we make rev_buf() optional here? I've tested this driver with
> Stratix-V FPGA using orion_spi driver. It works without swapping
> the data.

I replied earlier, but something in my email settings bounced.

The way to make it optional is to add a bit to the flags of the
fpga_image_info struct.

Alan

>
> Thanks,
> Anatolij

Back to linux.kernel | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: [PATCH v9 2/3] fpga manager: Add cyclone-ps-spi driver for  Altera FPGAs Anatolij Gustschin <agust@denx.de> - 2017-02-15 16:30 +0100
  Re: [PATCH v9 2/3] fpga manager: Add cyclone-ps-spi driver for Altera FPGAs Alan Tull <delicious.quinoa@gmail.com> - 2017-02-15 18:20 +0100
    Re: [PATCH v9 2/3] fpga manager: Add cyclone-ps-spi driver for Altera  FPGAs Joshua Clayton <stillcompiling@gmail.com> - 2017-02-16 00:10 +0100

csiph-web