linux-kernel - Re: [PATCH] arm64: dts: ti: k3-am64-main: Add SYSFW reserved ranges in OCRAM

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Message-ID: <81e61d1a-efde-0bff-719c-607752bfdbc1@ti.com>
Date:   Wed, 9 Jun 2021 20:56:32 +0530
From:   Lokesh Vutla <lokeshvutla@...com>
To:     Vignesh Raghavendra <vigneshr@...com>, Nishanth Menon <nm@...com>
CC:     Rob Herring <robh+dt@...nel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        Linux ARM Mailing List <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] arm64: dts: ti: k3-am64-main: Add SYSFW reserved ranges
 in OCRAM



On 09/06/21 7:36 pm, Vignesh Raghavendra wrote:
> Last 256K of OCRAM (256K@...01c0000) is reserved for SYSFW usage. Hence
> add an entry in DT so that its not used for generic pool memory
> allocation.
> 
> Without this certain drivers using SRAM as generic shared memory pool
> may end up being allocated memory from this range and will lead to boot
> time crash when the reserved range is accessed (due to firewall
> violation).
> 
> Signed-off-by: Vignesh Raghavendra <vigneshr@...com>

You might want to re-base on top of Aswath's patch updating ATF address. Otherwise:

Reviewed-by: Lokesh Vutla <lokeshvutla@...com>

Thanks and regards,
Lokesh