From: Ilya Yanok <yanok@emcraft.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 05/13] davinci_emac: fix for running with dcache enabled
Date: Sat, 12 Nov 2011 02:26:23 +0400 [thread overview]
Message-ID: <4EBDA10F.60306@emcraft.com> (raw)
In-Reply-To: <CAKWjMd7oNMhntqxiPVO4FyXDfGKaPoY76rDP4+1FLUsoz+EWiw@mail.gmail.com>
Hi Andy,
On 12.11.2011 02:11, Andy Fleming wrote:
>> DaVinci EMAC is present on TI AM35xx SoCs (ARMv7) which run with D-Cache
>> enabled by default. So we have to take care and flush/invalidate the
>> cache before/after the DMA operations.
>>
>> Please note that the receive buffer alignment to 32 byte boundary comes
>> from the old driver version I don't know if it is really needed or
>> alignment to cache line size is enough.
>>
>> Signed-off-by: Ilya Yanok <yanok@emcraft.com>
>
> I don't understand. Didn't you just submit a patch to disable dcache
> on all boards with EMAC?
Yes, on all arm926ejs boards. Look, arm926ejs has no implementation for
{flush,invalidate}_dcache_range and I really have no time now to
implement them. So I've just added no-op cache operations for
CONFIG_SYS_DCACHE_OFF case to fix the compilation of DaVinci board.
But it turned out that the builds are still broken because some DaVinci
boards using EMAC do not disable D-Cache.
Regards, Ilya.
next prev parent reply other threads:[~2011-11-11 22:26 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-11 0:39 [U-Boot] [PATCH v2 00/13] Support for HTKW mcx board Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 01/13] davinci_emac: move arch-independent defines to separate header Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 02/13] davinci_emac: use internal addresses in buffer descriptors Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 03/13] davinci_emac: conditionally compile specific PHY support Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 04/13] arm926ejs: add empty dcache handling functions Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 05/13] davinci_emac: fix for running with dcache enabled Ilya Yanok
2011-11-11 22:11 ` Andy Fleming
2011-11-11 22:26 ` Ilya Yanok [this message]
2011-11-11 0:39 ` [U-Boot] [PATCH 06/13] davinci_emac: hardcode 100Mbps for AM35xx and RMII Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 07/13] AM35xx: add EMAC support Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 08/13] AM3517: move AM3517 specific mux defines to generic header Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 09/13] nand_spl_simple: add support for software ECC Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 10/13] omap_gpmc: use SOFTECC in SPL if it's enabled Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 11/13] nand_spl_simple: store temp data at CONFIG_SPL_NAND_WORKSPACE Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 12/13] ehci-omap: driver for EHCI host on OMAP3 Ilya Yanok
2011-11-11 0:39 ` [U-Boot] [PATCH 13/13] mcx: support for HTKW mcx board Ilya Yanok
-- strict thread matches above, loose matches on Subject: below --
2011-11-28 16:37 [U-Boot] [PATCH V3 00/13] Support " Ilya Yanok
2011-11-28 16:37 ` [U-Boot] [PATCH 05/13] davinci_emac: fix for running with dcache enabled Ilya Yanok
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