From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Emilio Lopez <emilio-0Z03zUJReD5OxF6Tv1QG9Q@public.gmane.org>,
Dan Williams
<dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Vinod Koul <vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Cc: Mike Turquette
<mturquette-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
kevin.z.m.zh-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
sunny-0TFLnhJekD6UEPyfVivIlAC/G2K4zDHf@public.gmane.org,
shuge-0TFLnhJekD6UEPyfVivIlAC/G2K4zDHf@public.gmane.org,
zhuzhenhua-0TFLnhJekD6UEPyfVivIlAC/G2K4zDHf@public.gmane.org,
andriy.shevchenko-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
Maxime Ripard
<maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Subject: [PATCH v3 5/7] ARM: sun6i: Protect SDRAM gating bit
Date: Tue, 4 Mar 2014 17:18:02 +0100 [thread overview]
Message-ID: <1393949884-892-6-git-send-email-maxime.ripard@free-electrons.com> (raw)
In-Reply-To: <1393949884-892-1-git-send-email-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
Prevent the SDRAM controller from being gated by force-enabling it in the
machine code.
Signed-off-by: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
---
arch/arm/mach-sunxi/sun6i.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-sunxi/sun6i.c b/arch/arm/mach-sunxi/sun6i.c
index 6b39055..1ccb275 100644
--- a/arch/arm/mach-sunxi/sun6i.c
+++ b/arch/arm/mach-sunxi/sun6i.c
@@ -34,6 +34,11 @@ static void __init sun6i_dt_init(void)
clk = clk_get(NULL, "cpu");
if (!IS_ERR(clk))
clk_prepare_enable(clk);
+
+ /* DDR gating clock */
+ clk = clk_get(NULL, "ahb1_sdram");
+ if (!IS_ERR(clk))
+ clk_prepare_enable(clk);
}
extern void __init sun6i_reset_init(void);
--
1.9.0
next prev parent reply other threads:[~2014-03-04 16:18 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-04 16:17 [PATCH v3 0/7] Add support for the Allwinner A31 DMA Controller Maxime Ripard
[not found] ` <1393949884-892-1-git-send-email-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-03-04 16:17 ` [PATCH v3 1/7] clk: sunxi: Remove calls to clk_put Maxime Ripard
2014-03-04 16:17 ` [PATCH v3 2/7] ARM: sunxi: Split out the various machines into separate files Maxime Ripard
2014-03-04 16:18 ` [PATCH v3 3/7] ARM: sunxi: Move the clock protection to machine hooks Maxime Ripard
2014-03-04 16:18 ` [PATCH v3 4/7] ARM: sun6i: Protect CPU clock Maxime Ripard
2014-03-04 16:18 ` Maxime Ripard [this message]
2014-03-04 16:18 ` [PATCH v3 6/7] DMA: sun6i: Add driver for the Allwinner A31 DMA controller Maxime Ripard
[not found] ` <1393949884-892-7-git-send-email-maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
2014-03-05 14:07 ` Shevchenko, Andriy
[not found] ` <1394028474.28803.172.camel-XvqNBM/wLWRrdx17CPfAsdBPR1lH4CV8@public.gmane.org>
2014-03-10 12:05 ` Maxime Ripard
2014-03-04 16:18 ` [PATCH v3 7/7] ARM: sun6i: dt: Add A31 DMA controller to DTSI Maxime Ripard
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