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

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