From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Fri, 9 Oct 2015 14:57:00 +0200
Subject: [U-Boot] [PATCH] nios2: zap cache status enable and disable
	functions
In-Reply-To: <1444361567-27328-1-git-send-email-thomas@wytron.com.tw>
References: <1444361567-27328-1-git-send-email-thomas@wytron.com.tw>
Message-ID: <201510091457.00490.marex@denx.de>
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To: u-boot@lists.denx.de

On Friday, October 09, 2015 at 05:32:47 AM, Thomas Chou wrote:
> As the icache and dcache of nios2 are always enabled, the
> cmd_cache is no of use and the cache status, enable and
> disable functions can be removed.

This is no good, I want to be able to enable/disable caches to look
for DMA-related issues. That is, if I disable cache, the suspicious
driver works and if I enable cache, the driver does not work, I can
conclude that it's a DMA/cache-related issue.

> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
> ---
>  arch/nios2/cpu/cpu.c | 15 ---------------
>  1 file changed, 15 deletions(-)
> 
> diff --git a/arch/nios2/cpu/cpu.c b/arch/nios2/cpu/cpu.c
> index 229a07b..4183244 100644
> --- a/arch/nios2/cpu/cpu.c
> +++ b/arch/nios2/cpu/cpu.c
> @@ -29,21 +29,6 @@ int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char
> * const argv[]) return 0;
>  }
> 
> -int dcache_status(void)
> -{
> -	return 1;
> -}
> -
> -void dcache_enable(void)
> -{
> -	flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
> -}
> -
> -void dcache_disable(void)
> -{
> -	flush_dcache(CONFIG_SYS_DCACHE_SIZE, CONFIG_SYS_DCACHELINE_SIZE);
> -}
> -
>  int arch_cpu_init_dm(void)
>  {
>  	struct udevice *dev;

Best regards,
Marek Vasut