From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] why not enable ICache in vexpress_aemv8a.h
Date: Tue, 1 Apr 2014 09:21:03 -0700 [thread overview]
Message-ID: <533AE76F.1010207@freescale.com> (raw)
In-Reply-To: <FE7ADED5C2218B4786C09CD97DC4C49FE8CB8A@exchbj02.viatech.com.bj>
On 03/30/2014 11:30 PM, TigerLiu at via-alliance.com wrote:
> Hi, fenghua:
> I found you defined these marcoes in vexpress_aemv8a.h :
> #define CONFIG_SYS_DCACHE_OFF
> #define CONFIG_SYS_ICACHE_OFF
>
> Most ARMv7 platform will enable Icache to make code run faster.
> So, why not turn on Icache on ARMv8 FVP model?
> Is there any side-effects?
>
I can only guess why David choose to do so. The function model doesn't have
cache implemented. I am in the development of ARMv8 platform on an emulator
which is much closer to a real chip. I have found several cache related issue
with current code. If you want to check, please see
http://patchwork.ozlabs.org/bundle/yorksun/armv8_fsl-lsch3/
York
next prev parent reply other threads:[~2014-04-01 16:21 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-14 6:26 [U-Boot] [PATCH v2] arm64 patch: gicv3 support fenghua at phytium.com.cn
2014-03-31 6:30 ` [U-Boot] why not enable ICache in vexpress_aemv8a.h TigerLiu at via-alliance.com
2014-04-01 16:21 ` York Sun [this message]
2014-04-02 0:43 ` TigerLiu at via-alliance.com
2014-04-07 23:03 ` [U-Boot] [PATCH v2] arm64 patch: gicv3 support Albert ARIBAUD
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