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From: Jagan Teki <jagannadh.teki@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] sunxi: lower the DRAM frequency of Nano Pi NEO2 to 504MHz
Date: Thu, 2 Nov 2017 18:13:12 +0530	[thread overview]
Message-ID: <CAD6G_RSut5eNiR0ZDKGv5zWf586BKro60Cdus4z07bBY2oFCAQ@mail.gmail.com> (raw)
In-Reply-To: <aef1518747690de40e52f5dc63affd46@aosc.io>

On Thu, Nov 2, 2017 at 1:57 PM, Icenowy Zheng <icenowy@aosc.io> wrote:
> 在 2017-11-02 16:25，Jagan Teki 写道：
>>
>> On Thu, Nov 2, 2017 at 9:06 AM, Icenowy Zheng <icenowy@aosc.io> wrote:
>>>
>>> The BSP of Nano Pi NEO2 provided by FriendlyARM uses 504MHz DRAM
>>> frequency, which is much lower than the current 672MHz used in
>>> mainline.
>>>
>>> Switch to use the BSP-provided frequency 504MHz for DRAM.
>>>
>>> Thanks to Thomas Kaiser, who pointed out the frequency problem.
>>>
>>> Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
>>> ---
>>>  configs/nanopi_neo2_defconfig | 2 +-
>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/configs/nanopi_neo2_defconfig
>>> b/configs/nanopi_neo2_defconfig
>>> index b8e089176f..e210af4f0e 100644
>>> --- a/configs/nanopi_neo2_defconfig
>>> +++ b/configs/nanopi_neo2_defconfig
>>> @@ -1,7 +1,7 @@
>>>  CONFIG_ARM=y
>>>  CONFIG_ARCH_SUNXI=y
>>>  CONFIG_MACH_SUN50I_H5=y
>>> -CONFIG_DRAM_CLK=672
>>> +CONFIG_DRAM_CLK=504

Did you find this abort[3] with existing master, look like autoboot corrupted

[3] https://paste.ubuntu.com/25872498/

thanks!
-- 
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.

  reply	other threads:[~2017-11-02 12:43 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-02  3:36 [U-Boot] [PATCH] sunxi: lower the DRAM frequency of Nano Pi NEO2 to 504MHz Icenowy Zheng
2017-11-02  8:25 ` Jagan Teki
2017-11-02  8:27   ` Icenowy Zheng
2017-11-02 12:43     ` Jagan Teki [this message]
2017-11-02 13:59 ` Maxime Ripard

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