linux-kernel - Re: [PATCH] Lattice ECP3 FPGA: Correct endianness

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Date:	Fri, 4 Jul 2014 16:58:02 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Jean-Michel Hautbois <jean-michel.hautbois@...alys.com>
Cc:	linux-kernel <linux-kernel@...r.kernel.org>, sr@...x.de
Subject: Re: [PATCH] Lattice ECP3 FPGA: Correct endianness

On Thu, Jul 3, 2014 at 5:54 PM, Jean-Michel Hautbois
<jean-michel.hautbois@...alys.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?

etc.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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