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[PATCH/RFC] ARM: shmobile: defconfig: Enable LPAE

Message ID 1524671610-13908-1-git-send-email-fabrizio.castro@bp.renesas.com (mailing list archive)
State New, archived
Headers show

Commit Message

Fabrizio Castro April 25, 2018, 3:53 p.m. UTC 
On iWave's iwg20d DDR1 512MB memory cannot be accessed with 32-bit
addresses, hence we need LPAE.

Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
---
This information is mentioned in the "RZ/G Series User’s Manual: Hardware",
Chapter 2, Area Map. Is this patch going to break the functionality of other
boards? Comments welcome.

 arch/arm/configs/shmobile_defconfig | 1 +
 1 file changed, 1 insertion(+)

Comments

Chris Paterson April 25, 2018, 4:09 p.m. UTC | #1 
Hello Fab,

> From: Fabrizio Castro [mailto:fabrizio.castro@bp.renesas.com]

> Sent: 25 April 2018 16:54

> 

> On iWave's iwg20d DDR1 512MB memory cannot be accessed with 32-bit

s/iwg20d/iwg20m

Regards, Chris

> addresses, hence we need LPAE.

> 

> Signed-off-by: Biju Das <biju.das@bp.renesas.com>

> Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

> ---

> This information is mentioned in the "RZ/G Series User’s Manual: Hardware",

> Chapter 2, Area Map. Is this patch going to break the functionality of other

> boards? Comments welcome.

> 

>  arch/arm/configs/shmobile_defconfig | 1 +

>  1 file changed, 1 insertion(+)

> 

> diff --git a/arch/arm/configs/shmobile_defconfig

> b/arch/arm/configs/shmobile_defconfig

> index dd95d39..21b25e9 100644

> --- a/arch/arm/configs/shmobile_defconfig

> +++ b/arch/arm/configs/shmobile_defconfig

> @@ -23,6 +23,7 @@ CONFIG_ARCH_R8A7792=y

>  CONFIG_ARCH_R8A7793=y

>  CONFIG_ARCH_R8A7794=y

>  CONFIG_ARCH_SH73A0=y

> +CONFIG_ARM_LPAE=y

>  CONFIG_PL310_ERRATA_588369=y

>  CONFIG_ARM_ERRATA_754322=y

>  CONFIG_PCI=y

> --

> 2.7.4
Fabrizio Castro April 25, 2018, 4:12 p.m. UTC | #2 
Hello Chris,

> Subject: RE: [PATCH/RFC] ARM: shmobile: defconfig: Enable LPAE

>

> Hello Fab,

>

> > From: Fabrizio Castro [mailto:fabrizio.castro@bp.renesas.com]

> > Sent: 25 April 2018 16:54

> >

> > On iWave's iwg20d DDR1 512MB memory cannot be accessed with 32-bit

> s/iwg20d/iwg20m


You are right, thank you for spotting this!
I'll send a v2 to fix this.

Cheers,
Fab

>

> Regards, Chris

>

> > addresses, hence we need LPAE.

> >

> > Signed-off-by: Biju Das <biju.das@bp.renesas.com>

> > Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

> > ---

> > This information is mentioned in the "RZ/G Series User’s Manual: Hardware",

> > Chapter 2, Area Map. Is this patch going to break the functionality of other

> > boards? Comments welcome.

> >

> >  arch/arm/configs/shmobile_defconfig | 1 +

> >  1 file changed, 1 insertion(+)

> >

> > diff --git a/arch/arm/configs/shmobile_defconfig

> > b/arch/arm/configs/shmobile_defconfig

> > index dd95d39..21b25e9 100644

> > --- a/arch/arm/configs/shmobile_defconfig

> > +++ b/arch/arm/configs/shmobile_defconfig

> > @@ -23,6 +23,7 @@ CONFIG_ARCH_R8A7792=y

> >  CONFIG_ARCH_R8A7793=y

> >  CONFIG_ARCH_R8A7794=y

> >  CONFIG_ARCH_SH73A0=y

> > +CONFIG_ARM_LPAE=y

> >  CONFIG_PL310_ERRATA_588369=y

> >  CONFIG_ARM_ERRATA_754322=y

> >  CONFIG_PCI=y

> > --

> > 2.7.4





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diff mbox

Patch

diff --git a/arch/arm/configs/shmobile_defconfig b/arch/arm/configs/shmobile_defconfig
index dd95d39..21b25e9 100644
--- a/arch/arm/configs/shmobile_defconfig
+++ b/arch/arm/configs/shmobile_defconfig
@@ -23,6 +23,7 @@  CONFIG_ARCH_R8A7792=y
 CONFIG_ARCH_R8A7793=y
 CONFIG_ARCH_R8A7794=y
 CONFIG_ARCH_SH73A0=y
+CONFIG_ARM_LPAE=y
 CONFIG_PL310_ERRATA_588369=y
 CONFIG_ARM_ERRATA_754322=y
 CONFIG_PCI=y