diff mbox series

[1/2] riscv: dts: jh7110: Add a gpio-restart node

Message ID 20231031082439.395320-1-jh80.chung@samsung.com
State Accepted
Commit 202a5c6fa446f4c82f55feb54867937e0e8c3358
Delegated to: Andes
Headers show
Series [1/2] riscv: dts: jh7110: Add a gpio-restart node | expand

Commit Message

Jaehoon Chung Oct. 31, 2023, 8:24 a.m. UTC
Add gpio-restart node to do reset.

Before applied this patch, System Reset Extension doesn't appear with
sbi command.

OpenSBI 1.3
Machine:
  Vendor ID 489
  Architecture ID 8000000000000007
  Implementation ID 4210427
Extensions:
  sbi_set_timer
  sbi_console_putchar
...[snip]...
  IPI Extension
  RFENCE Extension
  Hart State Management Extension
  Performance Monitoring Unit Extension

After applied this patch, System Reset Extension is supported from SBI.

OpenSBI 1.3
Machine:
  Vendor ID 489
  Architecture ID 8000000000000007
  Implementation ID 4210427
Extensions:
  sbi_set_timer
  sbi_console_putchar
...[snip]...
  IPI Extension
  RFENCE Extension
  Hart State Management Extension
  System Reset Extension
  Performance Monitoring Unit Extension

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
---
 arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Tom Rini Oct. 31, 2023, 1:01 p.m. UTC | #1
On Tue, Oct 31, 2023 at 05:24:38PM +0900, Jaehoon Chung wrote:

> Add gpio-restart node to do reset.
> 
> Before applied this patch, System Reset Extension doesn't appear with
> sbi command.
> 
> OpenSBI 1.3
> Machine:
>   Vendor ID 489
>   Architecture ID 8000000000000007
>   Implementation ID 4210427
> Extensions:
>   sbi_set_timer
>   sbi_console_putchar
> ...[snip]...
>   IPI Extension
>   RFENCE Extension
>   Hart State Management Extension
>   Performance Monitoring Unit Extension
> 
> After applied this patch, System Reset Extension is supported from SBI.
> 
> OpenSBI 1.3
> Machine:
>   Vendor ID 489
>   Architecture ID 8000000000000007
>   Implementation ID 4210427
> Extensions:
>   sbi_set_timer
>   sbi_console_putchar
> ...[snip]...
>   IPI Extension
>   RFENCE Extension
>   Hart State Management Extension
>   System Reset Extension
>   Performance Monitoring Unit Extension
> 
> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
> ---
>  arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
> index e40f57a15080..e94f9fe826a8 100644
> --- a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
> +++ b/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
> @@ -34,6 +34,11 @@
>  		device_type = "memory";
>  		reg = <0x0 0x40000000 0x2 0x0>;
>  	};
> +
> +	gpio-restart {
> +		compatible = "gpio-restart";
> +		gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
> +	};
>  };
>  
>  &osc {

My only concern with this change (and a few other similar things I've
seen of late) is where is this change with respect to the upstream
kernel? The goal is the dts files should be able to be dropped in from
the kernel (except for -u-boot.dtsi), so we don't want to have changed
get dropped when they're re-synced.
Jaehoon Chung Oct. 31, 2023, 10:53 p.m. UTC | #2
Hi,

> -----Original Message-----
> From: Tom Rini <trini@konsulko.com>
> Sent: Tuesday, October 31, 2023 10:01 PM
> To: Jaehoon Chung <jh80.chung@samsung.com>
> Cc: u-boot@lists.denx.de; ycliang@andestech.com; yanhong.wang@starfivetech.com;
> minda.chen@starfivetech.com; xingyu.wu@starfivetech.com
> Subject: Re: [PATCH 1/2] riscv: dts: jh7110: Add a gpio-restart node
> 
> On Tue, Oct 31, 2023 at 05:24:38PM +0900, Jaehoon Chung wrote:
> 
> > Add gpio-restart node to do reset.
> >
> > Before applied this patch, System Reset Extension doesn't appear with
> > sbi command.
> >
> > OpenSBI 1.3
> > Machine:
> >   Vendor ID 489
> >   Architecture ID 8000000000000007
> >   Implementation ID 4210427
> > Extensions:
> >   sbi_set_timer
> >   sbi_console_putchar
> > ...[snip]...
> >   IPI Extension
> >   RFENCE Extension
> >   Hart State Management Extension
> >   Performance Monitoring Unit Extension
> >
> > After applied this patch, System Reset Extension is supported from SBI.
> >
> > OpenSBI 1.3
> > Machine:
> >   Vendor ID 489
> >   Architecture ID 8000000000000007
> >   Implementation ID 4210427
> > Extensions:
> >   sbi_set_timer
> >   sbi_console_putchar
> > ...[snip]...
> >   IPI Extension
> >   RFENCE Extension
> >   Hart State Management Extension
> >   System Reset Extension
> >   Performance Monitoring Unit Extension
> >
> > Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
> > ---
> >  arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi | 5 +++++
> >  1 file changed, 5 insertions(+)
> >
> > diff --git a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/dts/jh7110-starfive-
> visionfive-2.dtsi
> > index e40f57a15080..e94f9fe826a8 100644
> > --- a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
> > +++ b/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
> > @@ -34,6 +34,11 @@
> >  		device_type = "memory";
> >  		reg = <0x0 0x40000000 0x2 0x0>;
> >  	};
> > +
> > +	gpio-restart {
> > +		compatible = "gpio-restart";
> > +		gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
> > +	};
> >  };
> >
> >  &osc {
> 
> My only concern with this change (and a few other similar things I've
> seen of late) is where is this change with respect to the upstream
> kernel? The goal is the dts files should be able to be dropped in from
> the kernel (except for -u-boot.dtsi), so we don't want to have changed
> get dropped when they're re-synced.

I understood what you said. Its node was applied with first dts files.

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/arch/riscv/boot/dts/starfive/jh7110-starfive-vision
five-2.dtsi?id=54baba33392d428a8be4942441a92a9b05cf537e

Then I will wait for re-syncing dt files about visionfive2.

Best Regards,
Jaehoon Chung


> 
> --
> Tom
Leo Liang Dec. 13, 2023, 6:35 a.m. UTC | #3
On Tue, Oct 31, 2023 at 05:24:38PM +0900, Jaehoon Chung wrote:
> Add gpio-restart node to do reset.
> 
> Before applied this patch, System Reset Extension doesn't appear with
> sbi command.
> 
> OpenSBI 1.3
> Machine:
>   Vendor ID 489
>   Architecture ID 8000000000000007
>   Implementation ID 4210427
> Extensions:
>   sbi_set_timer
>   sbi_console_putchar
> ...[snip]...
>   IPI Extension
>   RFENCE Extension
>   Hart State Management Extension
>   Performance Monitoring Unit Extension
> 
> After applied this patch, System Reset Extension is supported from SBI.
> 
> OpenSBI 1.3
> Machine:
>   Vendor ID 489
>   Architecture ID 8000000000000007
>   Implementation ID 4210427
> Extensions:
>   sbi_set_timer
>   sbi_console_putchar
> ...[snip]...
>   IPI Extension
>   RFENCE Extension
>   Hart State Management Extension
>   System Reset Extension
>   Performance Monitoring Unit Extension
> 
> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
> ---
>  arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
diff mbox series

Patch

diff --git a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi b/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
index e40f57a15080..e94f9fe826a8 100644
--- a/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
+++ b/arch/riscv/dts/jh7110-starfive-visionfive-2.dtsi
@@ -34,6 +34,11 @@ 
 		device_type = "memory";
 		reg = <0x0 0x40000000 0x2 0x0>;
 	};
+
+	gpio-restart {
+		compatible = "gpio-restart";
+		gpios = <&sysgpio 35 GPIO_ACTIVE_HIGH>;
+	};
 };
 
 &osc {