linux-kernel - Re: [PATCH 1/5] memory: tegra: Correct la.reg address of seswr

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Date:   Fri, 9 Oct 2020 14:11:41 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Nicolin Chen <nicoleotsuka@...il.com>
Cc:     krzk@...nel.org, robh+dt@...nel.org, jonathanh@...dia.com,
        linux-tegra@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/5] memory: tegra: Correct la.reg address of seswr

On Wed, Oct 07, 2020 at 05:37:42PM -0700, Nicolin Chen wrote:
> According to Tegra X1 TRM, ALLOWANCE_SESWR is located in field
> [23:16] of register at address 0x3e0 with a reset value of 0x80
> at register 0x3e0, while bit-1 of register 0xb98 is for enable
> bit of seswr. So this patch fixes it.
> 
> Signed-off-by: Nicolin Chen <nicoleotsuka@...il.com>
> ---
>  drivers/memory/tegra/tegra210.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/memory/tegra/tegra210.c b/drivers/memory/tegra/tegra210.c
> index 7fb8b5438bf4..088814279616 100644
> --- a/drivers/memory/tegra/tegra210.c
> +++ b/drivers/memory/tegra/tegra210.c
> @@ -897,7 +897,7 @@ static const struct tegra_mc_client tegra210_mc_clients[] = {
>  			.bit = 1,
>  		},
>  		.la = {
> -			.reg = 0xb98,
> +			.reg = 0x3e0,
>  			.shift = 16,
>  			.mask = 0xff,
>  			.def = 0x80,

Heh, indeed. Look like I copied the reg offset from the .smmu.reg by
mistake.

Acked-by: Thierry Reding <treding@...dia.com>

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