From: Josh Wu <josh.wu@atmel.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 1/3] ARM: cache: add an empty stub function for invalidate/flush dcache
Date: Mon, 8 Jun 2015 10:05:04 +0800 [thread overview]
Message-ID: <5574F850.7090901@atmel.com> (raw)
In-Reply-To: <201506051518.49587.marex@denx.de>
Hi, Marek
On 6/5/2015 9:18 PM, Marek Vasut wrote:
> On Friday, June 05, 2015 at 09:47:30 AM, Josh Wu wrote:
>> Since some driver like ohci, lcd used dcache functions. But some ARM
>> cpu don't implement the invalidate_dcache_range()/flush_dcache_range()
>> functions.
>>
>> To avoid compiling errors this patch adds an weak empty stub function
>> for all ARM cpu.
>>
>> And each cpu can implement its own implementation. If not implemented
>> by default it will use an empty function.
>>
>> Signed-off-by: Josh Wu <josh.wu@atmel.com>
>> ---
>>
>> Changes in v2: new added
>>
>> arch/arm/lib/cache.c | 9 +++++++++
>> 1 file changed, 9 insertions(+)
> So, why exactly can't this be entirely common code , but a CPU-specific
> code ? :)
Do you mean to make those empty functions as common code for all arch
cpu to use? It seems there is no place to put common code for all arch cpu.
Best Regards,
Josh Wu
>
> Best regards,
> Marek Vasut
next prev parent reply other threads:[~2015-06-08 2:05 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-05 7:47 [U-Boot] [PATCH v2 1/3] ARM: cache: add an empty stub function for invalidate/flush dcache Josh Wu
2015-06-05 7:47 ` [U-Boot] [PATCH v2 2/3] m68k: cache: add an empty stub functions " Josh Wu
2015-06-05 21:29 ` Angelo Dureghello
2015-06-05 7:47 ` [U-Boot] [PATCH v2 3/3] usb: ohci: enable cache support Josh Wu
2015-06-05 13:18 ` [U-Boot] [PATCH v2 1/3] ARM: cache: add an empty stub function for invalidate/flush dcache Marek Vasut
2015-06-08 2:05 ` Josh Wu [this message]
2015-06-08 8:26 ` Marek Vasut
2015-06-08 9:15 ` Josh Wu
2015-06-08 13:20 ` Tom Rini
2015-06-09 3:54 ` Josh Wu
2015-06-09 13:11 ` Tom Rini
2015-06-10 9:49 ` Josh Wu
2015-06-10 9:58 ` Marek Vasut
2015-06-11 5:03 ` Josh Wu
2015-06-10 18:20 ` Tom Rini
2015-06-11 5:21 ` [U-Boot] [resend][PATCH 0/2] ARM: cache: clean up the code to drop the empty stub functions Josh Wu
2015-06-11 5:21 ` [U-Boot] [PATCH 1/2] ARM: cache: drop the empty dcache functions as we have it in lib/cache.c Josh Wu
2015-09-12 9:14 ` Albert ARIBAUD
2015-09-12 13:17 ` Tom Rini
2015-06-11 5:21 ` [U-Boot] [PATCH 2/2] ARM: cache: implement a default flush_cache() function Josh Wu
2015-07-01 2:01 ` [U-Boot] [resend][PATCH 0/2] ARM: cache: clean up the code to drop the empty stub functions Josh Wu
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