diff mbox series

[u-boot,v2019.04-aspeed-openbmc,3/5] arm: dts: ast2600-rainier: Add NPCT75X TPM

Message ID 20220505202829.31466-4-eajames@linux.ibm.com
State New
Headers show
Series ast2600: Add I2C TPMv2 driver | expand

Commit Message

Eddie James May 5, 2022, 8:28 p.m. UTC 
Add the TPM device on I2C bus 12.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
 arch/arm/dts/ast2600-rainier.dts | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

Comments

Joel Stanley May 10, 2022, 2:44 a.m. UTC | #1 
On Thu, 5 May 2022 at 20:28, Eddie James <eajames@linux.ibm.com> wrote:
>
> Add the TPM device on I2C bus 12.

What happens when a board doesn't have a TPM attached to this bus?

>
> Signed-off-by: Eddie James <eajames@linux.ibm.com>
> ---
>  arch/arm/dts/ast2600-rainier.dts | 12 +++++++-----
>  1 file changed, 7 insertions(+), 5 deletions(-)
>
> diff --git a/arch/arm/dts/ast2600-rainier.dts b/arch/arm/dts/ast2600-rainier.dts
> index 8a44fd8a0a..aa91b12ed3 100755
> --- a/arch/arm/dts/ast2600-rainier.dts
> +++ b/arch/arm/dts/ast2600-rainier.dts
> @@ -106,12 +106,14 @@
>
>  &gpio0 {
>         u-boot,dm-pre-reloc;
> +};
> +
> +&i2c12 {
> +       status = "okay";
>
> -       tpm_reset {
> -               u-boot,dm-pre-reloc;
> -               gpio-hog;
> -               output-high;
> -               gpios = <ASPEED_GPIO(R, 0) GPIO_ACTIVE_HIGH>;
> +       tpm@2e {
> +               compatible = "nuvoton,npct75x";
> +               reg = <0x2e>;
>         };
>  };
>
> --
> 2.27.0
>
diff mbox series

Patch

diff --git a/arch/arm/dts/ast2600-rainier.dts b/arch/arm/dts/ast2600-rainier.dts
index 8a44fd8a0a..aa91b12ed3 100755
--- a/arch/arm/dts/ast2600-rainier.dts
+++ b/arch/arm/dts/ast2600-rainier.dts
@@ -106,12 +106,14 @@ 
 
 &gpio0 {
 	u-boot,dm-pre-reloc;
+};
+
+&i2c12 {
+	status = "okay";
 
-	tpm_reset {
-		u-boot,dm-pre-reloc;
-		gpio-hog;
-		output-high;
-		gpios = <ASPEED_GPIO(R, 0) GPIO_ACTIVE_HIGH>;
+	tpm@2e {
+		compatible = "nuvoton,npct75x";
+		reg = <0x2e>;
 	};
 };