From: Stephen Warren <swarren@wwwdotorg.org>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 7/7] Tegra30: Add/enable Cardhu build (T30 reference board)
Date: Tue, 04 Dec 2012 15:41:36 -0700 [thread overview]
Message-ID: <50BE7C20.6000206@wwwdotorg.org> (raw)
In-Reply-To: <1354653614.1503.47.camel@tellur>
On 12/04/2012 01:40 PM, Lucas Stach wrote:
> Hi Tom,
>
> Am Dienstag, den 04.12.2012, 13:22 -0700 schrieb Tom Warren:
> [...]
>>
>>>
>>>> +#define V_NS16550_CLK 216000000 /* 216MHz (pllp_out0) */
>>>
>>> I thought PLL_P ran at 408MHz on Tegra30? The kernel certainly sets it
>>> up that way.
>>
>> See my previous reply. In the internal U-Boot repo I ported from, PLLP
>> was initially set to 216MHz, then sped up to 408MHz. When this first
>> round of patches is in, I can address going to 408MHz first thing.
>>
> Is running the PLL_P at 408MHz something which requires a lot of work?
> If not, please do this and fold it into this patchset. It doesn't look
> too nice adding things to upstream which have to be changed/removed
> immediately after going in.
Naively I'd have to agree here; it seems that programming the PLL for
the correct rate would probably "just work" right from the outset? After
all, if the code runs OK with the higher rate enabled a little later in
boot, I see no reason it shouldn't run OK with that exact same rate the
whole way through.
next prev parent reply other threads:[~2012-12-04 22:41 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-03 23:45 [U-Boot] [PATCH v2 0/7] Add support for NVIDIA Tegra30 SoC Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 1/7] Tegra30: Add arch-tegra30 include files Tom Warren
2012-12-04 0:22 ` Stephen Warren
2012-12-04 17:42 ` Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 2/7] Tegra30: Add AVP (arm720t) files Tom Warren
2012-12-04 0:34 ` Stephen Warren
2012-12-04 17:47 ` Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 3/7] Tegra30: Add CPU (armv7) files Tom Warren
2012-12-04 0:36 ` Stephen Warren
2012-12-03 23:45 ` [U-Boot] [PATCH V2 4/7] Tegra30: Add common CPU (shared) files Tom Warren
2012-12-05 20:37 ` Stephen Warren
2012-12-05 21:32 ` Tom Warren
2012-12-05 21:38 ` Stephen Warren
2012-12-05 21:43 ` Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 5/7] Tegra30: Cardhu: Add DT files Tom Warren
2012-12-04 0:40 ` Stephen Warren
2012-12-04 0:49 ` Simon Glass
2012-12-04 0:57 ` Stephen Warren
2012-12-04 1:01 ` Simon Glass
2012-12-04 20:29 ` Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 6/7] Tegra30: Add generic Tegra30 build support Tom Warren
2012-12-04 0:42 ` Stephen Warren
2012-12-04 19:48 ` Tom Warren
2012-12-03 23:45 ` [U-Boot] [PATCH v2 7/7] Tegra30: Add/enable Cardhu build (T30 reference board) Tom Warren
2012-12-04 0:53 ` Stephen Warren
2012-12-04 20:22 ` Tom Warren
2012-12-04 20:40 ` Lucas Stach
2012-12-04 21:28 ` Tom Warren
2012-12-04 22:41 ` Stephen Warren [this message]
2012-12-08 20:00 ` Simon Glass
2012-12-10 17:05 ` Tom Warren
2012-12-10 19:04 ` Simon Glass
2012-12-04 22:43 ` Stephen Warren
2012-12-05 20:30 ` Tom Warren
2012-12-04 0:07 ` [U-Boot] [PATCH v2 0/7] Add support for NVIDIA Tegra30 SoC Stephen Warren
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