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SubjectRe: [PATCH] Lattice ECP3 FPGA: Correct endianness
2014-07-04 16:58 GMT+02:00 Geert Uytterhoeven <geert@linux-m68k.org>:
> On Thu, Jul 3, 2014 at 5:54 PM, Jean-Michel Hautbois
> <jean-michel.hautbois@vodalys.com> wrote:
>> --- a/drivers/misc/lattice-ecp3-config.c
>> +++ b/drivers/misc/lattice-ecp3-config.c
>> @@ -93,7 +93,7 @@ static void firmware_load(const struct firmware *fw,
>> void *context)
>> txbuf[0] = FPGA_CMD_READ_ID;
>> ret = spi_write_then_read(spi, txbuf, 8, rxbuf, rx_len);
>> dev_dbg(&spi->dev, "FPGA JTAG ID=%08x\n", *(u32 *)&rxbuf[4]);
>> - jedec_id = *(u32 *)&rxbuf[4];
>> + jedec_id = be32_to_cpu(*(u32 *)&rxbuf[4]);
>
> What about "jedec_id = get_unaligned_be32(&rxbuf[4]);" instead?

Eh I didn't know such a function existed ! :)

JM


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