From: Sascha Hauer <s.hauer@pengutronix.de>
To: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH] ARM: mioa701: fix frequence speedup code
Date: Mon, 20 Jan 2014 16:38:48 +0100 [thread overview]
Message-ID: <20140120153848.GR16215@pengutronix.de> (raw)
In-Reply-To: <1390045689-23127-1-git-send-email-robert.jarzmik@free.fr>
Hi Robert,
On Sat, Jan 18, 2014 at 12:48:04PM +0100, Robert Jarzmik wrote:
> As barebox has become the true SPL of mioa701 board (no intermediate
> SPL), a bug was uncovered in the init procedure, where the CPU voltage
> was to be increased by commanding the I2C voltage regulator, while the
> I2C was shut down.
>
> Fix it by unclock-gating the power I2C bus before using it.
>
> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Applied this series, thanks
Sascha
> ---
> arch/arm/boards/mioa701/board.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm/boards/mioa701/board.c b/arch/arm/boards/mioa701/board.c
> index c46b5da..7ee0be0 100644
> --- a/arch/arm/boards/mioa701/board.c
> +++ b/arch/arm/boards/mioa701/board.c
> @@ -266,6 +266,7 @@ static int mioa701_coredevice_init(void)
> * This requires to command the Maxim 1586 to upgrade core voltage to
> * 1.475 V, on the power I2C bus (device 0x14).
> */
> + CKEN |= CKEN_PWRI2C;
> CCCR = CCCR_A | 0x20290;
> PCFR = PCFR_GPR_EN | PCFR_FVC | PCFR_DC_EN | PCFR_PI2C_EN | PCFR_OPDE;
> PCMD(0) = PCMD_LC | 0x1f;
> --
> 1.7.10.4
>
>
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> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
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prev parent reply other threads:[~2014-01-20 15:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-18 11:48 Robert Jarzmik
2014-01-18 11:48 ` [PATCH] ARM: pxa: add reset source detection Robert Jarzmik
2014-01-18 11:48 ` [PATCH] ARM: pxa: add poweroff capability Robert Jarzmik
2014-01-18 11:48 ` [PATCH] ARM: mioa701 defconfig update Robert Jarzmik
2014-01-18 11:48 ` [PATCH] ARM: mioa701 change MTD layout Robert Jarzmik
2014-01-18 11:48 ` [PATCH] ARM: mioa701: poweroff the board on long power press Robert Jarzmik
2014-01-20 15:38 ` Sascha Hauer [this message]
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