linux-kernel - RE: [PATCH] riscv: dts: starfive: Update flash partition layout

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Date: Tue, 4 Jun 2024 02:48:50 +0000
From: Hal Feng <hal.feng@...rfivetech.com>
To: Heinrich Schuchardt <heinrich.schuchardt@...onical.com>,
	"matthias.bgg@...nel.org" <matthias.bgg@...nel.org>
CC: "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"aou@...s.berkeley.edu" <aou@...s.berkeley.edu>, "duwe@...e.de"
	<duwe@...e.de>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "palmer@...belt.com" <palmer@...belt.com>,
	"paul.walmsley@...ive.com" <paul.walmsley@...ive.com>,
	"linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>, Matthias
 Brugger <matthias.bgg@...il.com>, "kernel@...il.dk" <kernel@...il.dk>,
	"robh@...nel.org" <robh@...nel.org>, "krzk+dt@...nel.org"
	<krzk+dt@...nel.org>, "conor+dt@...nel.org" <conor+dt@...nel.org>, Minda Chen
	<minda.chen@...rfivetech.com>
Subject: RE: [PATCH] riscv: dts: starfive: Update flash partition layout

> On 03.06.24 23:27, Heinrich Schuchardt wrote:
> On 03.06.24 17:07, matthias.bgg@...nel.org wrote:
> > From: Matthias Brugger <matthias.bgg@...il.com>
> >
> > Up to now, the describe flash partition layout has some gaps.
> > Use the whole flash chip by getting rid of the gaps.
> >
> > Suggested-by: Heinrich Schuchardt <heinrich.schuchardt@...onical.com>
> > Signed-off-by: Matthias Brugger <matthias.bgg@...il.com>
> 
> For flashing larger firmware like EDK II it is helpful to maximize the partition sizes.
> Thanks for sending the patch.
> 
> Commit 8384087a ("riscv: dts: starfive: Add QSPI controller node for StarFive
> JH7110 SoC") https://lore.kernel.org/linux-riscv/20230804020254.291239-4-
> william.qiu@...rfivetech.com/
> introduced the current layout.
> 
> CCing Starfive's U-Boot reviewers.
> 
> Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@...onical.com>

We added a "reserved-data" partition because the u-boot of VF2 didn't
require a large space and users can use this partition to do something
they want.

Best regards,
Hal

> 
> >
> > ---
> >
> >   arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 7 ++-----
> >   1 file changed, 2 insertions(+), 5 deletions(-)
> >
> > diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> > b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> > index 8ff6ea64f0489..37b4c294ffcc5 100644
> > --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> > +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> > @@ -321,16 +321,13 @@ partitions {
> >   			#size-cells = <1>;
> >
> >   			spl@0 {
> > -				reg = <0x0 0x80000>;
> > +				reg = <0x0 0xf0000>;
> >   			};
> >   			uboot-env@...00 {
> >   				reg = <0xf0000 0x10000>;
> >   			};
> >   			uboot@...000 {
> > -				reg = <0x100000 0x400000>;
> > -			};
> > -			reserved-data@...000 {
> > -				reg = <0x600000 0xa00000>;
> > +				reg = <0x100000 0xf00000>;
> >   			};
> >   		};
> >   	};