From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [Patch v4 2/5] ARMv8: Adjust MMU setup
Date: Fri, 6 Jun 2014 13:17:32 -0700 [thread overview]
Message-ID: <539221DC.2020107@freescale.com> (raw)
In-Reply-To: <20140606173243.GC18918@leverpostej>
On 06/06/2014 10:32 AM, Mark Rutland wrote:
>>> How is TCR_EL2.SH0 (or TCR_EL1.SH*) configured?
>>>
>>> You'll only need to flush the cache if they're configured non shareable.
>>
>> It is configured as non shareable.
>
> Is there any reason not to configure them as inner shareable? That way
> the MMU will look in the D-cache, and you won't have to spend time
> flushing them.
>
Mark,
I appreciate the reminder. I tried on our emulator. With inner share set for TCR
SH0 bits, u-boot works with the flushing, but doesn't work without flushing. It
went to exception.
Can you share more information about the inner share? I need to follow up with
our designer to confirm.
York
next prev parent reply other threads:[~2014-06-06 20:17 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-29 20:49 [U-Boot] [Patch v4 1/5] Added 64-bit MMIO accessors for ARMv8 York Sun
2014-05-29 20:49 ` [U-Boot] [Patch v4 2/5] ARMv8: Adjust MMU setup York Sun
2014-06-02 11:34 ` Mark Rutland
2014-06-02 16:06 ` York Sun
2014-06-02 18:01 ` Mark Rutland
2014-06-04 16:27 ` York Sun
2014-06-05 10:09 ` Mark Rutland
2014-06-05 15:07 ` York Sun
2014-06-05 17:41 ` Mark Rutland
2014-06-05 18:34 ` York Sun
2014-06-06 12:33 ` Mark Rutland
2014-06-06 14:54 ` York Sun
2014-06-06 17:32 ` Mark Rutland
2014-06-06 17:37 ` York Sun
2014-06-06 20:17 ` York Sun [this message]
2014-06-06 22:14 ` York Sun
2014-06-10 9:15 ` Mark Rutland
2014-06-10 16:04 ` York Sun
2014-06-13 19:41 ` York Sun
2014-06-18 14:09 ` fenghua at phytium.com.cn
2014-06-18 15:44 ` York Sun
2014-06-06 13:34 ` Rob Herring
2014-06-06 14:52 ` York Sun
2014-06-06 16:09 ` Tom Rini
2014-05-29 20:49 ` [U-Boot] [Patch v4 3/5] ARMv8/FSL_LSCH3: Add FSL_LSCH3 SoC York Sun
2014-06-11 14:05 ` fenghua at phytium.com.cn
2014-06-11 14:55 ` York Sun
2014-05-29 20:49 ` [U-Boot] [Patch v4 4/5] armv8/fsl-lsch3: Add support to load and start MC Firmware York Sun
2014-05-29 20:49 ` [U-Boot] [Patch v4 5/5] ARMv8/ls2100a_emu: Add LS2100A emulator and simulator board support York Sun
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