linux-kernel - Re: [PATCH] ARM: dts: BCM5301X: Extend RAM to full 256MB for Linksys EA6500 V2

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Message-ID: <fc94da45-aba8-4e69-a1a0-c1d58a90c68c@lunn.ch>
Date:   Wed, 12 Jul 2023 17:23:21 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Christian Marangi <ansuelsmth@...il.com>
Cc:     Florian Fainelli <florian.fainelli@...adcom.com>,
        Hauke Mehrtens <hauke@...ke-m.de>,
        Rafał Miłecki <zajec5@...il.com>,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        René Kjellerup <rk.katana.steel@...il.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Aleksey Nasibulin <alealexpro100@...ru>, stable@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: BCM5301X: Extend RAM to full 256MB for Linksys
 EA6500 V2

> --- a/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts
> +++ b/arch/arm/boot/dts/broadcom/bcm4708-linksys-ea6500-v2.dts
> @@ -19,7 +19,8 @@ chosen {
>  
>  	memory@0 {
>  		device_type = "memory";
> -		reg = <0x00000000 0x08000000>;
> +		reg = <0x00000000 0x08000000>,
> +		      <0x88000000 0x08000000>;

So there is a hole in the middle? Does this require any special
CONFIG_ option to support sparse memory?

	Andrew