From: Sascha Hauer <s.hauer@pengutronix.de>
To: yegorslists@googlemail.com
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] arm: baltos: enable mPCIe slot and configure external GPIO controller
Date: Tue, 14 Mar 2017 08:18:37 +0100 [thread overview]
Message-ID: <20170314071837.55ehyx2b4hqzlrw5@pengutronix.de> (raw)
In-Reply-To: <1489136300-8428-1-git-send-email-yegorslists@googlemail.com>
On Fri, Mar 10, 2017 at 09:58:20AM +0100, yegorslists@googlemail.com wrote:
> From: Yegor Yefremov <yegorslists@googlemail.com>
>
> Baltos devices provide a mPCIe slot, whose power is turned off by
> default. This patch activates mPCIe slot in barebox, so that for example
> GSM modem can be already available in user space.
>
> Also configure external GPIO controller via setting its output pins to
> low.
>
> Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
> ---
> arch/arm/boards/vscom-baltos/board.c | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
Applied, thanks
Sascha
>
> diff --git a/arch/arm/boards/vscom-baltos/board.c b/arch/arm/boards/vscom-baltos/board.c
> index fea992d..39f40a6 100644
> --- a/arch/arm/boards/vscom-baltos/board.c
> +++ b/arch/arm/boards/vscom-baltos/board.c
> @@ -41,6 +41,7 @@
> #include <linux/err.h>
> #include <mach/bbu.h>
> #include <libfile.h>
> +#include <gpio.h>
>
> static struct omap_barebox_part baltos_barebox_part = {
> .nand_offset = SZ_512K,
> @@ -109,6 +110,17 @@ static int baltos_read_eeprom(void)
> sprintf(var_buf, "%d", hw_param.SystemId);
> globalvar_add_simple("board.id", var_buf);
>
> + /* enable mPCIe slot */
> + gpio_direction_output(100, 1);
> +
> + /* configure output signals of the external GPIO controller */
> + if (hw_param.SystemId == 210 || hw_param.SystemId == 211) {
> + gpio_direction_output(132, 0);
> + gpio_direction_output(133, 0);
> + gpio_direction_output(134, 0);
> + gpio_direction_output(135, 0);
> + }
> +
> return 0;
> }
> environment_initcall(baltos_read_eeprom);
> --
> 2.1.4
>
>
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prev parent reply other threads:[~2017-03-14 7:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-10 8:58 yegorslists
2017-03-14 7:18 ` Sascha Hauer [this message]
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