From: Stefan Roese <sr@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] ppc4xx: Cleanup Boot/FLASH TLB reassignment for PPC440/460
Date: Thu, 1 Jul 2010 10:29:51 +0200 [thread overview]
Message-ID: <201007011029.51375.sr@denx.de> (raw)
In-Reply-To: <1276162086-13968-1-git-send-email-sr@denx.de>
On Thursday 10 June 2010 11:28:06 Stefan Roese wrote:
> Background Info:
> Some PPC440/460 boards have caches enabled in the Boot/FLASH TLB (via
> init.S) to speed up the boot process. In relocate_code (start.S) the
> cache inhibit attribute for this TLB is set to disable cache. This is
> needed for the CFI FLASH driver.
>
> This patch now cleans this code up:
> - CONFIG_SYS_TLB_FOR_BOOT_FLASH is defined to 0 (default TLB) if not
> defined in the top of this file. This way, we can remove an ugly
> #ifdef in this code.
> - Replace complex "#if defined(CONFIG_440EP) || defined(CONFIG_GR)..."
> statement with "#if defined(CONFIG_440)".
> - Remove unnecessary cache invalidate calls resulting in faster bootup.
Applied to u-boot-ppc4xx/master. Thanks.
Cheers,
Stefan
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de
prev parent reply other threads:[~2010-07-01 8:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-10 9:28 [U-Boot] [PATCH] ppc4xx: Cleanup Boot/FLASH TLB reassignment for PPC440/460 Stefan Roese
2010-07-01 8:29 ` Stefan Roese [this message]
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